CN217121783U - Cutter for processing annular deep hole - Google Patents
Cutter for processing annular deep hole Download PDFInfo
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- CN217121783U CN217121783U CN202123407476.1U CN202123407476U CN217121783U CN 217121783 U CN217121783 U CN 217121783U CN 202123407476 U CN202123407476 U CN 202123407476U CN 217121783 U CN217121783 U CN 217121783U
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- side wall
- cutting edge
- base body
- annular deep
- clamping
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Abstract
The utility model discloses a cutter for processing annular deep holes, which comprises a base body part, a clamping part, a cutting edge and an internal cooling part; the base body is cylindrical, a round hole is formed in one end of the base body and is coaxial with the base body, a cutting opening is formed in the side wall of the base body and is communicated with the side wall of the round hole, the cutting opening comprises a first side wall and a second side wall, the first side wall is tangent to the side wall of the round hole, and the second side wall is in the radial direction of the round hole; the clamping part is arranged at the other end of the base part; the cutting edge is arranged on the second side wall and is positioned at one end of the second side wall, which is far away from the clamping part; the inner cooling portion penetrates from the end surface of the clamping portion to the end surface of the base portion. The cutter of this scheme can carry out the processing of annular deep hole fast, and can discharge the iron fillings that produce smoothly in the cutting process.
Description
Technical Field
The utility model belongs to the machining field, more specifically relates to a cutter for processing annular deep hole.
Background
In the machining of certain types of plunger pump plungers, it is required to drill a deep hole (aspect ratio greater than 10) while also having to retain a solid portion of the center, called an annular deep hole. Such a requirement presents two process difficulties: 1) because the central part needs to be reserved, the standard drill bit cannot finish machining, and the central part is inevitably cut off during machining; 2) the existence of the central part ensures that scrap iron generated in the cutting process can not be discharged smoothly like a standard cutter, causes cutting heat accumulation, and is very easy to cause cutter breakage or obviously reduce the service life of the cutter.
Therefore, the development of the cutter for processing the annular deep hole is expected, the central part can be reserved, scrap iron can be smoothly discharged, and the service life of the tool is prolonged.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a cutter for processing annular deep hole solves current cutter and is difficult to accomplish annular deep hole machining, processing cutter life-span and technical problem that the processing cost is high.
In order to achieve the above object, the present invention provides a tool for machining an annular deep hole, comprising a base portion, a clamping portion, a cutting edge, and an internal cooling portion;
the base body is cylindrical, a round hole is formed in one end of the base body, the round hole is coaxial with the base body, a cutting opening is formed in the side wall of the base body and communicated with the side wall of the round hole, the cutting opening comprises a first side wall and a second side wall, the first side wall is tangent to the side wall of the round hole, and the second side wall is in the radial direction of the round hole;
the clamping part is arranged at the other end of the base part;
the cutting edge is arranged on the second side wall and is positioned at one end, far away from the clamping part, of the second side wall;
the inner cooling portion penetrates from the end surface of the clamping portion to the end surface of the base portion.
Optionally, the cutting edge is a broken line type, and includes a first cutting edge, a second cutting edge and a third cutting edge that are connected in sequence, and the first cutting edge, the second cutting edge and the third cutting edge are integrally formed.
Optionally, the first sidewall and the second sidewall form a 90 ° included angle therebetween.
Optionally, the internal cooling portion comprises a water inlet pipeline and a water return pipeline, and the water inlet pipeline and the water return pipeline are parallel to each other.
Optionally, the clamping portion is cylindrical and coaxial with the base portion, and a clamping plane is disposed on a side wall of the clamping portion.
Optionally, an end of the cutting opening near the clamping portion is curved.
Alternatively, the base portion and the clamping portion are integrally formed.
Optionally, the cutting edge is welded to the second side wall.
Optionally, the base body portion is provided with a guide bar, and the guide bar extends from the end face of the base body portion to the outer wall of the base body portion.
The beneficial effects of the utility model reside in that: the cutter that the cutter of this scheme of utilization is used for processing annular deep hole can realize the quick processing of annular deep hole, and the iron fillings that produce in the cutting process can be followed the cutting opening and discharged smoothly, avoid the cutting heat to gather, effectively prolong cutter life, reduce the processing cost.
Other features and advantages of the present invention will be described in detail in the detailed description which follows.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail exemplary embodiments thereof with reference to the attached drawings, in which like reference numerals generally represent like parts throughout the exemplary embodiments of the present invention.
Fig. 1 shows a schematic front view of a tool for machining annular deep holes according to an embodiment of the present invention.
Fig. 2 shows a schematic side view of a tool for machining an annular deep hole according to an embodiment of the present invention.
Fig. 3 shows a schematic structural view of a cutting edge according to an embodiment of the invention.
Description of the reference numerals
1. A clamping portion; 2. an internal cooling section; 3. a base portion; 4. a cutting edge; 5. a guide strip;
4.1, a first cutting edge; 4.2, a second cutting edge; 4.3, third cutting edge.
Detailed Description
Preferred embodiments of the present invention will be described in more detail below. While the following describes preferred embodiments of the present invention, it should be understood that the present invention may be embodied in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
The utility model discloses a cutter for processing annular deep holes, which comprises a base body part, a clamping part, a cutting edge and an internal cooling part;
the base body is cylindrical, a round hole is formed in one end of the base body and is coaxial with the base body, a cutting opening is formed in the side wall of the base body and is communicated with the side wall of the round hole, the cutting opening comprises a first side wall and a second side wall, the first side wall is tangent to the side wall of the round hole, and the second side wall is in the radial direction of the round hole;
the clamping part is arranged at the other end of the base part;
the cutting edge is arranged on the second side wall and is positioned at one end of the second side wall, which is far away from the clamping part;
the inner cooling portion penetrates from the end surface of the clamping portion to the end surface of the base portion.
Specifically, the base body portion of this scheme is equipped with mutual intercommunication's round hole and cutting opening, and the cutting edge sets up on the lateral wall of cutting opening, and when cutting, only the annular part around the round hole is cut along with the rotatory cutting edge of stage property, and the iron fillings that produce in the cutting can outwards be discharged by the cutting opening. The cutter that the cutter of this scheme of utilization is used for processing annular deep hole can realize the quick processing of annular deep hole, and the iron fillings that produce in the cutting process can be followed the cutting opening and discharged smoothly, avoid the cutting heat to gather, effectively prolong cutter life, reduce the processing cost.
As an alternative scheme, the cutting edge is of a broken line type and comprises a first cutting edge, a second cutting edge and a third cutting edge which are sequentially connected, and the first cutting edge, the second cutting edge and the third cutting edge are integrally formed.
Specifically, when a workpiece is cut, a first cutting edge, a second cutting edge and a third cutting edge are simultaneously contacted with the workpiece, the first cutting edge plays a main cutting role, and a negative chamfer is arranged between the second cutting edge and the third cutting edge and used for chip breaking.
Alternatively, the first side wall and the second side wall are at a 90 ° angle.
As an alternative, the internal cooling part comprises a water inlet pipeline and a water return pipeline, and the water inlet pipeline and the water return pipeline are parallel to each other.
Specifically, the water inlet pipe and the return water pipeline of cooling portion can cool off the depths of annular deep hole in the cutting process in the cooperation, have further avoided the cutting heat to gather, effectively prolong cutter life.
Alternatively, the clamping portion is cylindrical and coaxial with the base portion, and a clamping plane is provided on a side wall of the clamping portion.
Alternatively, the end of the cutting edge adjacent the clamping portion is curved.
Alternatively, the base portion is integrally formed with the clamping portion.
Alternatively, the cutting edge is welded to the second side wall.
Alternatively, the base body is provided with guide strips extending from the end surface of the base body to the outer wall of the base body.
In particular, because the cutting edge of the scheme is not positioned at the center of the cutter, the cutting process generates cutting bias force, and therefore the guide strip is arranged to ensure that the cutter keeps linear feeding without deviation or vibration during the drilling process.
Examples
As shown in fig. 1 and fig. 2, the tool for machining an annular deep hole of the present embodiment includes a clamping portion 1 and a base portion 3 connected in sequence, the clamping portion 1 and the base portion 3 are both cylindrical and coaxially disposed and integrally formed, and a clamping plane is disposed on a side wall of the clamping portion 1; a round hole is arranged on the end surface of the free end of the base body part 3, and the round hole is coaxial with the base body part 3; a cutting opening is formed in the side wall of the base body portion 3 along the axial direction of the base body portion and communicated with the side wall of the circular hole, the cutting opening comprises a first side wall and a second side wall, a 90-degree included angle is formed between the first side wall and the second side wall, the first side wall is tangent to the side wall of the circular hole, the second side wall is along the radial direction of the circular hole, and one end, close to the clamping portion, of the cutting opening is provided with a radian; the cutting edge 4 is welded on the second side wall and is located at one end of the second side wall, which is far away from the clamping part, as shown in fig. 3, the cutting edge 4 is of a broken line type and comprises a first cutting edge 4.1, a second cutting edge 4.2 and a third cutting edge 4.3 which are sequentially connected, and the first cutting edge 4.1, the second cutting edge 4.2 and the third cutting edge 4.3 are integrally formed; the inner cooling part 2 comprises a water inlet pipeline and a water return pipeline which are parallel to each other and both run through the end surface of the clamping part 1 to the end surface of the base part 3; the two guide strips 5 are made of rigid material and extend from the end surface of the base body 3 to the outer wall of the base body 3.
When the tool is used, a workpiece to be machined is clamped to a main shaft of a workpiece of a machine tool, the clamping is stable, the runout is less than 0.05mm, and then the tool is clamped to a main shaft of a tool of the machine tool, and the runout is less than 0.01 mm. Then, applying internal cooling water with certain pressure to the cutter, testing whether the internal cooling part of the cutter works normally or not, and starting machining after the internal cooling part of the cutter works normally; after the machining is finished, the workpiece can be taken down, and the next machining is continued or finished.
By adopting the cutter for processing the annular deep hole, the annular deep hole can be processed smoothly in the background technology by reasonably clamping the cutter and matching reasonable processing parameters and proper cooling water pressure. Compared with the background art, the processing mode of reserving the central part, which cannot be realized by a standard cutter, can be realized; the scrap iron generated in the cutting process can be effectively discharged, the cutting heat aggregation is avoided, the service life of the cutter is effectively prolonged, and the processing cost is reduced.
While various embodiments of the present invention have been described above, the above description is intended to be illustrative, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.
Claims (9)
1. A cutter for processing an annular deep hole is characterized by comprising a base body part, a clamping part, a cutting edge and an internal cooling part;
the base body is cylindrical, a round hole is formed in one end of the base body, the round hole is coaxial with the base body, a cutting opening is formed in the side wall of the base body and communicated with the side wall of the round hole, the cutting opening comprises a first side wall and a second side wall, the first side wall is tangent to the side wall of the round hole, and the second side wall is in the radial direction of the round hole;
the clamping part is arranged at the other end of the base part;
the cutting edge is arranged on the second side wall and is positioned at one end, far away from the clamping part, of the second side wall;
the inner cooling portion penetrates from the end surface of the clamping portion to the end surface of the base portion.
2. The tool for machining the annular deep hole according to claim 1, wherein the cutting edge is of a broken line type and comprises a first cutting edge, a second cutting edge and a third cutting edge which are connected in sequence, and the first cutting edge, the second cutting edge and the third cutting edge are integrally formed.
3. The tool for forming an annular deep hole of claim 1 wherein said first side wall and said second side wall are at a 90 ° angle therebetween.
4. The tool for machining annular deep holes according to claim 1, wherein the inner cooling portion includes a water inlet line and a water return line, the water inlet line and the water return line being parallel to each other.
5. The tool for machining annular deep holes according to claim 1, wherein the clamping portion is cylindrical and coaxial with the base portion, and a clamping plane is provided on a side wall of the clamping portion.
6. The tool for forming an annular deep hole of claim 1 wherein an end of the cutting opening adjacent the clamping portion is curved.
7. The tool for machining annular deep holes of claim 1, wherein the base portion is integrally formed with the clamping portion.
8. The tool for machining annular deep holes of claim 1 wherein said cutting edge is welded to said second side wall.
9. The tool for machining annular deep holes according to claim 1, wherein the base body portion is provided with guide strips extending from an end surface of the base body portion to an outer wall of the base body portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123407476.1U CN217121783U (en) | 2021-12-30 | 2021-12-30 | Cutter for processing annular deep hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123407476.1U CN217121783U (en) | 2021-12-30 | 2021-12-30 | Cutter for processing annular deep hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217121783U true CN217121783U (en) | 2022-08-05 |
Family
ID=82620257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123407476.1U Active CN217121783U (en) | 2021-12-30 | 2021-12-30 | Cutter for processing annular deep hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217121783U (en) |
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2021
- 2021-12-30 CN CN202123407476.1U patent/CN217121783U/en active Active
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