CN112620807A - Semi-closed cavity chamfering tool structure and machining method - Google Patents
Semi-closed cavity chamfering tool structure and machining method Download PDFInfo
- Publication number
- CN112620807A CN112620807A CN202011449661.4A CN202011449661A CN112620807A CN 112620807 A CN112620807 A CN 112620807A CN 202011449661 A CN202011449661 A CN 202011449661A CN 112620807 A CN112620807 A CN 112620807A
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- blade
- cutter bar
- semi
- hole
- cavity
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D79/00—Methods, machines, or devices not covered elsewhere, for working metal by removal of material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/0042—Devices for removing chips
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Drilling And Boring (AREA)
Abstract
The invention relates to the field of maintenance equipment of aero-engines, in particular to a semi-closed cavity chamfering tool structure and a machining method capable of well finishing machining a through hole of a semi-closed cavity, wherein the semi-closed cavity chamfering tool structure comprises a workpiece to be machined, a cavity is formed in the workpiece, the cavity is communicated with the outside through the hole to be machined, the workpiece comprises a cutter bar and a blade, the blade is rotatably arranged at one end of the cutter bar, and the machining method comprises the following steps: when the blade rotates to a cutter bar entering state, the blade enters the cavity along with the cutter bar through the hole to be processed; when the blade rotates to the cutter bar machining state, the blade machines the hole to be machined. The chamfering method is particularly suitable for the chamfering process of the through hole of the semi-closed cavity.
Description
Technical Field
The invention relates to the field of maintenance equipment of aero-engines, in particular to a semi-closed cavity chamfering tool structure and a machining method.
Background
Burrs are generated in an inner cavity orifice of a six-stage drum barrel after combined reaming of a high-pressure compressor rotor of an aircraft engine, the existing common treatment method for removing the burrs of the inner cavity orifice is grinding by using oilstone and sand paper, and the method has the following defects: firstly, the method has the risk that burrs are not completely removed; secondly, the orifice has a sharp edge, so that the risk of damaging the precision bolt exists in the assembling and working states of the engine; thirdly, stress concentration is carried out at the sharp edge of the orifice, and the risk of orifice cracks exists in the working state of the engine; fourthly, the sand grains generated in the polishing process are difficult to be attached to the surface of the inner cavity for cleaning, and the risk of generating excess materials exists; fifthly, the labor efficiency is low. Therefore, there is no tool that can solve the above mentioned drawbacks.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a semi-closed cavity chamfering tool structure and a processing method which can well finish the processing of a semi-closed cavity through hole.
The technical scheme adopted by the invention for solving the technical problems is as follows: semi-closed die cavity chamfer cutter structure is equipped with the work piece of treating of die cavity in including, the die cavity is through treating the processing hole and external intercommunication, including cutter arbor and blade, the blade is rotatable to be set up in the one end of cutter arbor, wherein: when the blade rotates to a cutter bar entering state, the blade enters the cavity along with the cutter bar through the hole to be processed; when the blade rotates to the cutter bar machining state, the blade machines the hole to be machined.
Further, the difference in angle between when the insert is in the cutter bar entry state and when the insert is in the cutter bar machining state is 90 degrees.
Further, the cutter bar and the cutter blade are detachably connected.
Further, the blade is rotatably arranged at one end of the cutter bar through a pin shaft.
Further, the other end of the cutter bar is provided with a cutter bar joint.
Further, the semi-closed cavity chamfering processing method comprises the following steps: firstly, the blade is rotated to a cutter bar entering state, then the blade enters the cavity along with the cutter bar through the hole to be processed, then the blade is rotated to the cutter bar processing state, and the hole to be processed is processed through the blade.
The invention has the beneficial effects that: according to the invention, by skillfully designing the rotating structure between the cutter bar and the blade, the blade can well enter the cavity along the cutter bar, and the subsequent processing is completed. The technical advantages of the invention are as follows: the invention can realize stable cutting processing of the orifice of the semi-closed inner cavity, the chamfer surface is smooth and smooth, and the size is easy to control, thereby effectively avoiding the risk of stress concentration of the orifice and damage to a precision bolt; the cutting scraps generated in the processing are granular, and compared with the traditional method of grinding by using oilstone and sand paper, the cutting scraps are easy to clean, and the generation of redundant materials in the assembling process can be effectively prevented; the structure of the invention can be used on a machine tool and also can be installed on an electric tool, thereby expanding the application range. The device can play an important role in occasions where certain machine tools cannot process; fourthly, the labor efficiency can be improved, and the labor intensity and the operation difficulty are reduced. The chamfering method is particularly suitable for the chamfering process of the through hole of the semi-closed cavity.
Drawings
Fig. 1 is a front view of the tool of the present invention.
Fig. 2 is a top view of the tool of the present invention.
Fig. 3 is a side view of the tool of the present invention.
Figure 4 is a schematic view of the tool of the present invention prior to entering a hole to be machined.
Fig. 5 is a schematic view of the tool of the present invention after it has entered a hole to be machined.
Fig. 6 is a schematic view of the tool of the present invention during machining after entering a hole to be machined.
Labeled as: the cutter bar comprises a cutter bar 1, a pin shaft 2, a blade 3, a hole 4 to be processed and a workpiece 5 to be processed.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 1-6, the semi-closed cavity chamfering tool structure includes a workpiece 5 to be processed, in which a cavity is arranged, the cavity is communicated with the outside through a hole 4 to be processed, and includes a tool bar 1 and a blade 3, the blade 3 is rotatably arranged at one end of the tool bar 1, wherein: when the blade 3 rotates to a cutter bar entering state, the blade 3 enters the cavity along with the cutter bar 1 through the hole 4 to be processed; when the blade 3 rotates to the cutter bar processing state, the blade 3 processes the hole 4 to be processed.
In actual machining, firstly, the blade 3 is rotated to a state that the cutter bar 1 enters, as shown in fig. 4, at this time, the outer diameter of the cutter bar 1 is smaller than the inner diameter of the hole 4 to be machined, and the blade 3 is located in the range of the outer diameter of the cutter bar 1 at this time, so that the blade 3 can smoothly enter the hole 4 to be machined along the cutter bar 1, as shown in fig. 5; and then the blade 3 is rotated to the cutter bar processing state, as shown in fig. 6, the hole 4 to be processed can be processed. Generally, the angle difference between the blade 3 in the cutter bar entering state and the blade 3 in the cutter bar processing state is 90 degrees, and the cavity entering and processing can be well realized.
In order to achieve a flexible subsequent removal and replacement of the blade 3 according to the actual requirements, the following options are selected: the cutter bar 1 and the cutter blade 3 are detachably connected. Preferably, the blade 3 is rotatably arranged at one end of the cutter bar 1 through the pin shaft 2, the structure can meet the rotating requirement of the blade 3, and when the blade 3 needs to be disassembled and replaced, the blade 3 can be disassembled and subsequently replaced in a mode of disassembling the pin shaft 2. In actual use, the hole opening chamfering of the hole 4 to be machined at different angles can be realized by replacing the blade 3. When the included angle of the cutting edges is 180 degrees, the processing of the step hole on the reverse side of the semi-closed inner cavity can be realized.
In order to increase the flexibility of use of the connecting end of the tool bar 1, the other end of the tool bar 1 is preferably provided with a tool bar joint. The cutter bar 1 can be clamped on a drill chuck of a drilling machine or an electric hand drill through the cutter bar joint, so that the cutter bar 1 is matched with the drill chuck of the drilling machine or the electric hand drill.
The invention has smoother and easier-to-clean orifice, higher labor efficiency in use, obvious technical advantages and wide market popularization prospect.
Claims (6)
1. Semi-closed die cavity chamfer cutter structure is equipped with work piece (5) of treating of die cavity in including, the die cavity is through treating that processing hole (4) communicate with the external world, its characterized in that: including cutter arbor (1) and blade (3), blade (3) are rotatable to be set up in the one end of cutter arbor (1), wherein: when the blade (3) rotates to the state that the cutter bar (1) enters, the blade (3) enters the cavity along with the cutter bar (1) through the hole (4) to be processed; when the blade (3) rotates to a cutter bar machining state, the blade (3) machines the hole (4) to be machined.
2. The semi-enclosed cavity chamfer cutter structure of claim 1, wherein: the angle difference between the blade (3) in the cutter bar entering state and the blade (3) in the cutter bar machining state is 90 degrees.
3. The semi-enclosed cavity chamfer cutter structure of claim 1, wherein: the cutter bar (1) and the blade (3) are detachably connected.
4. The semi-closed cavity chamfering tool structure according to claim 1, 2 or 3, wherein: the blade (3) is rotatably arranged at one end of the cutter bar (1) through a pin shaft (2).
5. The semi-closed cavity chamfering tool structure according to claim 1, 2 or 3, wherein: the other end of the cutter bar (1) is provided with a cutter bar joint.
6. A method of machining with the semi-enclosed cavity chamfer cutter structure of claim 1, comprising the steps of: firstly, the blade (3) is rotated to a cutter bar entering state, then the blade (3) enters the cavity along with the cutter bar (1) through the hole (4) to be machined, then the blade (3) is rotated to a cutter bar machining state, and the hole (4) to be machined is machined through the blade (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011449661.4A CN112620807A (en) | 2020-12-09 | 2020-12-09 | Semi-closed cavity chamfering tool structure and machining method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011449661.4A CN112620807A (en) | 2020-12-09 | 2020-12-09 | Semi-closed cavity chamfering tool structure and machining method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112620807A true CN112620807A (en) | 2021-04-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011449661.4A Pending CN112620807A (en) | 2020-12-09 | 2020-12-09 | Semi-closed cavity chamfering tool structure and machining method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112620807A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113305352A (en) * | 2021-06-24 | 2021-08-27 | 成都爱乐达航空制造股份有限公司 | Method for reversely drawing and processing blind hole in horizontal processing center |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2661345Y (en) * | 2003-11-13 | 2004-12-08 | 扬动股份有限公司 | Intra cavity orifice chamfer and countersink tool |
| CN210139068U (en) * | 2019-06-29 | 2020-03-13 | 中国商用飞机有限责任公司 | Chamfering tool |
-
2020
- 2020-12-09 CN CN202011449661.4A patent/CN112620807A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2661345Y (en) * | 2003-11-13 | 2004-12-08 | 扬动股份有限公司 | Intra cavity orifice chamfer and countersink tool |
| CN210139068U (en) * | 2019-06-29 | 2020-03-13 | 中国商用飞机有限责任公司 | Chamfering tool |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113305352A (en) * | 2021-06-24 | 2021-08-27 | 成都爱乐达航空制造股份有限公司 | Method for reversely drawing and processing blind hole in horizontal processing center |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210409 |
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| RJ01 | Rejection of invention patent application after publication |