CN112191939A - Machining method of deep inner cavity weld bead - Google Patents

Machining method of deep inner cavity weld bead Download PDF

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Publication number
CN112191939A
CN112191939A CN202011053219.XA CN202011053219A CN112191939A CN 112191939 A CN112191939 A CN 112191939A CN 202011053219 A CN202011053219 A CN 202011053219A CN 112191939 A CN112191939 A CN 112191939A
Authority
CN
China
Prior art keywords
cutter
capto interface
capto
bead
tool
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202011053219.XA
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Chinese (zh)
Inventor
张东旭
谢荣瑶
马艳艳
贺益龙
王荣
王静娜
张宗鸿
张敏
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AECC Aviation Power Co Ltd
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AECC Aviation Power Co Ltd
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Publication date
Application filed by AECC Aviation Power Co Ltd filed Critical AECC Aviation Power Co Ltd
Priority to CN202011053219.XA priority Critical patent/CN112191939A/en
Publication of CN112191939A publication Critical patent/CN112191939A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23DPLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D79/00Methods, machines, or devices not covered elsewhere, for working metal by removal of material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, 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
    • B23Q17/00Arrangements for observing, indicating or measuring on machine tools
    • B23Q17/22Arrangements for observing, indicating or measuring on machine tools for indicating or measuring existing or desired position of tool or work
    • B23Q17/2233Arrangements for observing, indicating or measuring on machine tools for indicating or measuring existing or desired position of tool or work for adjusting the tool relative to the workpiece

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Milling Processes (AREA)

Abstract

The invention discloses a processing method of a deep inner cavity weld bead, which comprises the following steps: connecting the CAPTO interface cutter and then installing the CAPTO interface cutter on a machine tool spindle; carrying out axial and radial tool setting on the CAPTO interface tool; moving the machine tool spindle to a safe position where the CAPTO interface cutter can be manually removed, and removing the CAPTO interface cutter from the machine tool spindle; gradually placing the CAPTO interface cutter into a part cavity in an inclined mode; moving a machine tool spindle according to the relative distance between a weld bead to be machined and the axial and radial tool setting positions of the CAPTO interface cutter, ensuring that the CAPTO interface cutter is axially aligned with the weld bead after the CAPTO interface cutter is installed, and ensuring that the radial safe distance between the CAPTO interface cutter and the weld bead surface meets the design requirement; mounting a CAPTO interface tool to a machine tool spindle; starting the machine tool for processing until the processing of the welding bead is finished; the axial and radial tool setting of the cutter can be realized, the welding track is accurately processed, the processing efficiency is greatly improved, and the processing risk is greatly reduced.

Description

Machining method of deep inner cavity weld bead
Technical Field
The invention belongs to the field of machining, and particularly relates to a machining method of a deep inner cavity weld bead.
Background
The deep inner cavity weld bead has the characteristic that the radial drop between the minimum inner hole of the part and the weld bead position is larger than the minimum inner hole of the part, and therefore, the weld bead processing cutter cannot enter the part cavity according to a normal programming track to realize weld bead processing. The general solution is to manually extend a welding bead machining tool into a part cavity and then install the welding bead machining tool on a machine tool spindle for machining, but in this way, tool setting cannot be achieved in the axial direction and the radial direction of the tool, manual operation is needed, the machining position is judged through sound generated by cutting, and a great machining risk exists.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a method for machining a deep inner cavity weld bead, which can realize axial and radial tool setting of a cutter, accurately machine the weld bead, greatly improve the machining efficiency and reduce the machining risk.
In order to achieve the purpose, the invention adopts the technical scheme that the processing method of the deep inner cavity weld bead comprises the following steps:
step 1, connecting a CAPTO interface cutter holder, a cutter bar and a blade and then installing the cutter holder, the cutter bar and the blade on a machine tool spindle;
step 2, carrying out axial and radial tool setting on the CAPTO interface tool;
step 3, moving the machine tool spindle to a safe position where the CAPTO interface cutter can be manually removed, and removing the CAPTO interface cutter from the machine tool spindle;
step 4, manually inclining the CAPTO interface cutter to be gradually placed into a part cavity;
step 5, moving a machine tool spindle according to the relative distance between the weld bead to be machined and the axial and radial tool setting positions of the CAPTO interface cutter, ensuring that the CAPTO interface cutter is flush with the weld bead in the axial direction after the CAPTO interface cutter is installed, and ensuring that the safe distance between the CAPTO interface cutter in the radial direction and the weld bead surface meets the design requirement;
step 6, installing a CAPTO interface cutter to a machine tool spindle;
step 7, starting the machine tool for processing until the processing of the welding bead is finished;
and 8, detaching the CAPTO interface cutter from the machine tool spindle, moving the machine tool spindle to a safe position, and manually and gradually taking out the cutter from the part cavity in an inclined manner.
And 1, designing the CAPTO interface cutter according to the radial drop of the minimum inner hole and the welding bead position of the part to be machined and the size of the minimum inner hole of the part.
When the CAPTO interface cutter is installed in a part cavity, a safety distance of 1-5 mm is designed between the position of the maximum size of the CAPTO interface cutter and a part.
The CAPTO interface cutter comprises a CAPTO interface, a cutter holder, a cutter rod and a cutter blade, wherein the cutter holder and the cutter rod are vertically connected to form an L shape, the cutter blade is arranged at the free end of the guide rod, and the cutter holder is connected with the CAPTO interface.
And 2, performing axial tool setting on the CAPTO interface tool at the outer end face of the part cavity.
And 2, performing radial tool setting at an inner hole with the same design size of the part cavity and the weld bead position.
In the step 5, the radial safe distance between the CAPTO interface cutter and the surface of the weld bead is 1-5 mm.
In step 7, the cutting sound is monitored simultaneously during the machining process.
And (5) machining by adopting a numerical control machine tool.
And processing one inner cavity weld bead at a time.
Compared with the prior art, the invention has at least the following beneficial effects:
by adopting the method for processing the welding bead in the inner cavity by the CAPTO interface cutter, the cutter can be axially and radially adjusted without damage in the whole processing process, the welding bead is accurately processed, the processing efficiency is greatly improved, and the processing risk is greatly reduced
Drawings
FIG. 1 shows the deep cavity bead configuration of the example part.
FIG. 2 is an embodiment CAPTO interface tool configuration.
FIG. 3 shows axial and radial tool setting of the example tool
Fig. 4 shows the embodiment where the tool is tilted gradually into the part cavity by hand.
FIG. 5 shows the spindle position of the machine tool prior to tool installation in accordance with an embodiment.
In the attached drawings, 1-CAPTO interface cutter, 11-CAPTO interface, 12-cutter seat, 13-cutter rod, 14-cutter blade, 2-welding bead, 3-part external end surface and 4-inner hole with the same design size as the welding bead position.
Detailed Description
The present invention will be described in detail with reference to the following examples and accompanying drawings.
Example one
Taking the part shown in fig. 1 as an example, the minimum inner hole diameter of the part is 110mm, the radial drop of the welding bead position reaches 120mm, and a traditional welding bead machining CAPTO interface cutter cannot enter a part cavity according to a normal programming track and cannot realize tool setting machining of the CAPTO interface cutter. The method comprises the following specific processing steps:
the first step is as follows: designing a CAPTO interface cutter shown in figure 2 according to the structural size of the part; the CAPTO interface cutter comprises a CAPTO interface 11, a cutter holder 12, a cutter rod 13 and a blade 14, wherein the cutter holder 12 and the cutter rod 13 are vertically connected to form an L shape, the blade 14 is installed at the free end of the guide rod 13, and the cutter holder 12 is connected with the CAPTO interface 11.
The second step is that: a CAPTO interface cutter is installed, and the cutter holder 12, the cutter rod 13 and the cutter blade 14 are connected and then installed on a machine tool spindle.
The third step: as shown in fig. 3, the CAPTO interface tool was axially and radially tool set on the part exterior face 3 and the inner bore 4 of the same design dimension as the weld bead location.
The fourth step: and moving the machine tool spindle to a safe position where the CAPTO interface tool can be manually removed, and removing the CAPTO interface tool from the machine tool spindle.
The fifth step: as shown in FIG. 4, the CAPTO interface tool was manually tilted and gradually placed into the part cavity.
And a sixth step: as shown in fig. 5, according to the relative distance between the weld bead to be processed and the axial and radial tool setting positions of the CAPTO interface tool, the machine tool spindle is moved, after the CAPTO interface tool is installed, the CAPTO interface tool is basically flush with the weld bead in the axial direction, and the safe distance between the tool in the radial direction and the weld bead is 1-5 mm.
The seventh step: and a CAPTO interface cutter is mounted on the machine tool spindle, so that the CAPTO interface cutter is prevented from contacting with a part.
Eighth step: and operating the machine tool to carry out welding bead processing until the welding bead processing is finished.
The ninth step: removing the tool from the machine tool spindle; and moving the main shaft of the machine tool to a safe position, and gradually taking out the tool from the inner cavity of the part by inclining the tool by hand.
And when the next welding bead is processed, the axial and radial tool setting is carried out again.

Claims (10)

1. A processing method of a deep inner cavity welding bead is characterized by comprising the following steps:
step 1, installing a CAPTO interface cutter on a machine tool spindle;
step 2, carrying out axial and radial tool setting on the CAPTO interface tool;
step 3, moving the machine tool spindle to a safe position where the CAPTO interface cutter can be manually removed, and removing the CAPTO interface cutter from the machine tool spindle;
step 4, manually inclining the CAPTO interface cutter to be gradually placed into a part cavity;
step 5, moving a machine tool spindle according to the relative distance between the weld bead to be machined and the axial and radial tool setting positions of the CAPTO interface cutter, ensuring that the CAPTO interface cutter is axially aligned with the weld bead (2) after the CAPTO interface cutter is installed, and ensuring that the radial safe distance between the CAPTO interface cutter and the surface of the weld bead (2) meets the design requirement;
step 6, installing a CAPTO interface cutter to a machine tool spindle;
step 7, starting the machine tool for processing until the processing of the welding bead (2) is finished;
and 8, detaching the CAPTO interface cutter from the machine tool spindle, moving the machine tool spindle to a safe position, and manually and gradually taking out the cutter from the part cavity in an inclined manner.
2. The method for machining a deep inside cavity bead as claimed in claim 1, wherein the CAPTO interface tool in step 1 is designed according to the minimum inner bore of the part to be machined and the radial drop of the bead position and the minimum inner bore size of the part.
3. The machining method for the deep inner cavity weld bead as claimed in claim 2, wherein when the CAPTO interface cutter is installed in the part cavity, a safety distance of 1-5 mm is designed between the maximum size of the CAPTO interface cutter and the part.
4. The machining method of the deep inner cavity bead as claimed in claim 1, wherein the CAPTO interface tool comprises a CAPTO interface (11), a tool holder (12), a tool bar (13) and a blade (14), the tool holder (12) and the tool bar (13) are vertically connected to form an L shape, the blade (14) is mounted at the free end of the guide rod (13), and the tool holder (12) is connected with the CAPTO interface (11).
5. The machining method for the deep inside cavity weld bead according to the claim 1, characterized in that, in the step 2, the CAPTO interface tool axial tool setting is carried out on the outer end surface (3) of the part cavity.
6. The method for machining the deep inner cavity weld bead according to the claim 1, characterized in that, in the step 2, the radial tool setting is carried out at the inner hole (4) with the same design size of the part cavity and the weld bead position.
7. The machining method of the deep inside cavity bead according to the claim 1, characterized in that in the step 5, the safe distance between the CAPTO interface cutter and the surface of the bead (2) in the radial direction is 1-5 mm.
8. The process for forming a deep inside cavity bead according to claim 1, wherein in step 7, the cutting sound is monitored during the process.
9. The method of machining a deep inside cavity bead as set forth in claim 1, wherein machining is performed by a numerically controlled machine.
10. The method of machining a deep inside cavity bead as claimed in claim 1, wherein one inside cavity bead is machined at a time.
CN202011053219.XA 2020-09-29 2020-09-29 Machining method of deep inner cavity weld bead Pending CN112191939A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011053219.XA CN112191939A (en) 2020-09-29 2020-09-29 Machining method of deep inner cavity weld bead

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Application Number Priority Date Filing Date Title
CN202011053219.XA CN112191939A (en) 2020-09-29 2020-09-29 Machining method of deep inner cavity weld bead

Publications (1)

Publication Number Publication Date
CN112191939A true CN112191939A (en) 2021-01-08

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030056626A1 (en) * 2001-09-21 2003-03-27 Steagall Joseph Michael Method and apparatus for machining turbine component internals
CN102950336A (en) * 2011-08-27 2013-03-06 沈阳黎明航空发动机(集团)有限责任公司 Special cutter and method for processing closed elongated inner cavity profile
EP3050652A1 (en) * 2015-01-20 2016-08-03 United Technologies Corporation Method to machine deep features using a lathe
CN106513723A (en) * 2016-11-25 2017-03-22 沈阳黎明航空发动机(集团)有限责任公司 Deep cavity turning cutter of curved surface structure and use method thereof
CN109128231A (en) * 2018-10-19 2019-01-04 中国航发航空科技股份有限公司 A kind of lathe processing tool bit of aero-engine compressor multistage leaf dish weld assembly small space
CN109719308A (en) * 2018-12-11 2019-05-07 中国航发贵州黎阳航空动力有限公司 A kind of annular tongue-and-groove processing presetting cutter method
CN110480039A (en) * 2019-09-12 2019-11-22 无锡航亚科技股份有限公司 A kind of cutter and processing method for processing aero-engine welding disc intracoelomic cavity

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030056626A1 (en) * 2001-09-21 2003-03-27 Steagall Joseph Michael Method and apparatus for machining turbine component internals
CN102950336A (en) * 2011-08-27 2013-03-06 沈阳黎明航空发动机(集团)有限责任公司 Special cutter and method for processing closed elongated inner cavity profile
EP3050652A1 (en) * 2015-01-20 2016-08-03 United Technologies Corporation Method to machine deep features using a lathe
CN106513723A (en) * 2016-11-25 2017-03-22 沈阳黎明航空发动机(集团)有限责任公司 Deep cavity turning cutter of curved surface structure and use method thereof
CN109128231A (en) * 2018-10-19 2019-01-04 中国航发航空科技股份有限公司 A kind of lathe processing tool bit of aero-engine compressor multistage leaf dish weld assembly small space
CN109719308A (en) * 2018-12-11 2019-05-07 中国航发贵州黎阳航空动力有限公司 A kind of annular tongue-and-groove processing presetting cutter method
CN110480039A (en) * 2019-09-12 2019-11-22 无锡航亚科技股份有限公司 A kind of cutter and processing method for processing aero-engine welding disc intracoelomic cavity

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Application publication date: 20210108