CN113523605A - Laser cutting machining method for 300 MW-level heavy gas turbine guide bush - Google Patents
Laser cutting machining method for 300 MW-level heavy gas turbine guide bush Download PDFInfo
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- CN113523605A CN113523605A CN202110881746.8A CN202110881746A CN113523605A CN 113523605 A CN113523605 A CN 113523605A CN 202110881746 A CN202110881746 A CN 202110881746A CN 113523605 A CN113523605 A CN 113523605A
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- guide bush
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/38—Removing material by boring or cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0461—Welding tables
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/047—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work moving work to adjust its position between soldering, welding or cutting steps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/006—Vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/02—Iron or ferrous alloys
- B23K2103/04—Steel or steel alloys
- B23K2103/05—Stainless steel
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Engineering (AREA)
- Plasma & Fusion (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention relates to the technical field of steam turbine manufacturing, in particular to a laser cutting processing method for a guide bush of a 300 MW-grade heavy type gas turbine, which aims to solve the problems of high clamping difficulty, low processing efficiency, high processing cost and long production cycle of the guide bush processing and comprises the following steps: the method comprises the following steps: carrying out three-dimensional modeling on the guide bush to be processed, and carrying out cutting simulation and program output through laser cutting programming software; step two: placing a guide bush to be processed on the indexing rotary table, and setting the guide bush and the indexing rotary table to be concentric; limiting the flow guide bush by a weight; step three: after the program reference point is set as the center of the rotary table, the simulation before cutting can be carried out, and the step four is carried out after the simulation is successful; step four: the method has the advantages that proper cutting parameters and starting procedures are selected, the linkage of the rotary table and the laser head is utilized to realize the cutting of the molded lines of the upper hole and the half hole of the part, corresponding products are obtained, and after the novel method is adopted, the working efficiency is improved, the production period is shortened, and the manufacturing cost is reduced.
Description
Technical Field
The invention relates to the technical field of steam turbine manufacturing, in particular to a laser cutting processing method for a guide bush of a 300 MW-level heavy-duty gas turbine.
Background
The guide bush is an important component of a 300 MW-grade heavy-duty gas turbine, is a conical thin-walled part formed by a 304 stainless steel plate, the full-curved surface and the end surface of a workpiece are designed with through hole and half-hole molded line structures, the parts are usually manufactured by adopting a machining mode, but the clamping difficulty is high due to the fact that the parts belong to thin-walled parts, and the clamping difficulty is high due to the fact that the parts are poor in rigidity, the processing efficiency is low due to the fact that materials are large in viscosity during processing, the processing cost is high, and the production period is long.
Disclosure of Invention
The invention aims to solve the problems of high clamping difficulty, low processing efficiency, high processing cost and long production period in the processing of a guide bush, and provides a laser cutting processing method for the guide bush of a 300 MW-grade heavy-duty gas turbine.
In order to achieve the purpose, the laser cutting processing method of the guide bush of the 300 MW-level heavy-duty gas turbine comprises the following steps:
the method comprises the following steps: simulation testing;
carrying out three-dimensional modeling on the guide bush to be processed, and carrying out cutting simulation and program output through laser cutting programming software;
step two: positioning a part;
placing a guide bush to be processed on the indexing rotary table, and setting the guide bush and the indexing rotary table to be concentric; limiting the flow guide bush by a weight;
step three: simulating cutting;
after the program reference point is set as the center of the rotary table, the simulation before cutting can be carried out, and the step four is carried out after the simulation is successful;
step four: cutting;
and selecting proper cutting parameters, starting a program, and realizing the cutting of the molded lines of the upper hole and the half hole of the part by utilizing the linkage of the rotary table and the laser head to obtain a corresponding product.
Further, the process of cutting simulation and program output by the laser cutting programming software in the first step is as follows: and (3) importing the three-dimensional drawing of the guide bush workpiece into a PEPS software PentaCut Module cutting Module to carry out three-dimensional solid machining simulation test, including cutting collision simulation and cutting path arrangement.
And furthermore, in the second step, the flow guide bush and the indexing rotary table are concentric, and a dial indicator is used for measuring accuracy.
Furthermore, the simulation before the cutting of the die in the third step is specifically an idle walking program, the correctness of the program is verified, and the laser head and the guide bush have no collision.
And further, in the fourth step, cutting parameters are selected from a database according to the material and the size of the flow guide bush.
Preferably, the dimension is a plate thickness.
Has the advantages that: according to the method, the machining requirements are determined according to the structure of the part, the cutting of the hole and the half hole on the curved surface of the part is realized by utilizing the space cutting function of the laser cutting machine tool and the linkage of the indexing rotary table of the equipment, the part is convenient to clamp by adopting the method, the part to be machined is only aligned with the center of the rotary table and then limited by a heavy object, the part is machined, the machining efficiency is high, a special tool is not required to be designed, and the machining cost and the machining difficulty are low. After the new method is adopted, the working efficiency is improved, the production period is shortened, and the manufacturing cost is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments of the present invention will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic view of a 300MW class heavy duty combustion engine flow guide sleeve.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or coupled. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "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 device or element being 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 present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
For the convenience of understanding the embodiments of the present invention, the following description will be further explained by taking several specific embodiments as examples in conjunction with the drawings, and the embodiments are not to be construed as limiting the embodiments of the present invention.
The first embodiment is as follows: the laser cutting processing method of the guide bush of the 300 MW-level heavy-duty gas turbine comprises the following steps:
the method comprises the following steps: simulation testing;
carrying out three-dimensional modeling on the guide bush to be processed, and carrying out cutting simulation and program output through laser cutting programming software;
step two: positioning a part;
placing a guide bush to be processed on the indexing rotary table, and setting the guide bush and the indexing rotary table to be concentric; limiting the flow guide bush by a weight;
step three: simulating cutting;
after the program reference point is set as the center of the rotary table, the simulation before cutting can be carried out, and the step four is carried out after the simulation is successful;
step four: cutting;
and selecting proper cutting parameters, starting a program, and realizing the cutting of the molded lines of the upper hole and the half hole of the part by utilizing the linkage of the rotary table and the laser head to obtain a corresponding product.
The second embodiment is as follows: the laser cutting processing method of the guide bush of the 300 MW-level heavy-duty gas turbine comprises the following steps of cutting simulation and program output through laser cutting programming software in the first step: and (3) importing the three-dimensional drawing of the guide bush workpiece into a PEPS software PentaCut Module cutting Module to carry out three-dimensional solid machining simulation test, including cutting collision simulation and cutting path arrangement.
The other embodiments are the same as the first embodiment.
The third concrete implementation mode: the laser cutting processing method of the guide bush of the 300 MW-level heavy-duty gas turbine is characterized by comprising the following steps of: and step two, setting the flow guide bush and the indexing rotary table to be concentric, and measuring the accuracy by using a dial indicator.
The other embodiments are the same as the first embodiment.
The fourth concrete implementation mode: the laser cutting processing method of the guide bush of the 300 MW-level heavy-duty gas turbine is characterized by comprising the following steps of: in the third step, the simulation before cutting the die is specifically an idle walking program, the correctness of the program is verified, and the laser head and the guide bush have no collision.
The other embodiments are the same as the first embodiment.
The fifth concrete implementation mode: the laser cutting processing method of the guide bush of the 300 MW-level heavy-duty gas turbine is characterized by comprising the following steps of: and in the fourth step, cutting parameters are selected from the database according to the material and the size of the flow guide bush.
The other embodiments are the same as the first embodiment.
The sixth specific implementation mode: the laser cutting processing method of the guide bush of the 300 MW-level heavy-duty gas turbine is characterized by comprising the following steps of: the dimension is a plate thickness.
The other embodiments are the same as the first embodiment.
The embodiment is described with reference to fig. 1, and the laser cutting processing method for the guide bush of the 300 MW-class heavy-duty gas turbine comprises the following steps:
the method comprises the following steps: simulation testing;
carrying out three-dimensional modeling on the guide bush to be processed, and carrying out cutting simulation and program output through laser cutting programming software;
the process of cutting simulation and program output through laser cutting programming software comprises the following steps: and (3) importing the three-dimensional drawing of the guide bush workpiece into a PEPS software PentaCut Module cutting Module to carry out three-dimensional solid machining simulation test, including cutting collision simulation and cutting path arrangement.
Step two: positioning a part;
placing a guide bush to be processed on the indexing rotary table, and setting the guide bush and the indexing rotary table to be concentric; limiting the flow guide bush by a weight;
and setting the flow guide bush and the indexing rotary table to be concentric, and measuring the accuracy by using a dial indicator.
Step three: simulating cutting;
after the program reference point is set as the center of the rotary table, the simulation before cutting can be carried out, and the step four is carried out after the simulation is successful;
the simulation before the cutting die is specifically an idle walking program, the correctness of the program is verified, and the laser head and the guide bush have no collision.
Step four: cutting;
and selecting proper cutting parameters, starting a program, and realizing the cutting of the molded lines of the upper hole and the half hole of the part by utilizing the linkage of the rotary table and the laser head to obtain a corresponding product.
The cutting parameters are selected from a database according to the material and the size of the flow guide bush, and the specific size parameter is the plate thickness.
The working principle is as follows:
according to the method, the machining requirement is determined according to the structure of the part, the guide bush to be machined is placed on the indexing rotary table, the guide bush and the indexing rotary table are concentric, and the cutting of the hole and the half hole on the curved surface of the part is realized by the space cutting function of a laser cutting machine tool and the linkage of the indexing rotary table of the equipment.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
- The laser cutting processing method of the guide bush of the 1.300 MW-level heavy-duty gas turbine is characterized by comprising the following steps of: it comprises the following steps:the method comprises the following steps: simulation testing;carrying out three-dimensional modeling on the guide bush to be processed, and carrying out cutting simulation and program output through laser cutting programming software;step two: positioning a part;placing a guide bush to be processed on the indexing rotary table, and setting the guide bush and the indexing rotary table to be concentric; limiting the flow guide bush by a weight;step three: simulating cutting;after the program reference point is set as the center of the rotary table, the simulation before cutting can be carried out, and the step four is carried out after the simulation is successful;step four: cutting;and selecting proper cutting parameters, starting a program, and realizing the cutting of the molded lines of the upper hole and the half hole of the part by utilizing the linkage of the rotary table and the laser head to obtain a corresponding product.
- 2. The laser cutting machining method for the guide bush of the 300 MW-grade heavy-duty combustion engine according to claim 1, characterized by comprising the following steps of: the process of cutting simulation and program output through laser cutting programming software in the first step is as follows: and (3) importing the three-dimensional drawing of the guide bush workpiece into a PEPS software PentaCut Module cutting Module to carry out three-dimensional solid machining simulation test, including cutting collision simulation and cutting path arrangement.
- 3. The laser cutting machining method for the guide bush of the 300 MW-grade heavy-duty combustion engine according to claim 1, characterized by comprising the following steps of: and step two, setting the flow guide bush and the indexing rotary table to be concentric, and measuring the accuracy by using a dial indicator.
- 4. The laser cutting machining method for the guide bush of the 300 MW-grade heavy-duty combustion engine according to claim 1, characterized by comprising the following steps of: in the third step, the simulation before cutting the die is specifically an idle walking program, the correctness of the program is verified, and the laser head and the guide bush have no collision.
- 5. The laser cutting machining method for the guide bush of the 300 MW-grade heavy-duty combustion engine according to claim 1, characterized by comprising the following steps of: and in the fourth step, cutting parameters are selected from the database according to the material and the size of the flow guide bush.
- 6. The laser cutting machining method for the 300 MW-grade heavy-duty combustion engine guide sleeve bush according to claim 5, is characterized in that: the dimension is a plate thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110881746.8A CN113523605A (en) | 2021-08-02 | 2021-08-02 | Laser cutting machining method for 300 MW-level heavy gas turbine guide bush |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110881746.8A CN113523605A (en) | 2021-08-02 | 2021-08-02 | Laser cutting machining method for 300 MW-level heavy gas turbine guide bush |
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| Publication Number | Publication Date |
|---|---|
| CN113523605A true CN113523605A (en) | 2021-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110881746.8A Withdrawn CN113523605A (en) | 2021-08-02 | 2021-08-02 | Laser cutting machining method for 300 MW-level heavy gas turbine guide bush |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202004014772U1 (en) * | 2004-09-21 | 2004-12-16 | Mobil Laser Tec Gmbh | Pipe-cutting device for partly automated cutting of objects like pipes applies thermal cutting process with positioning and measuring devices |
| CN201154415Y (en) * | 2007-09-21 | 2008-11-26 | 北京工业大学 | Ultraviolet laser machining system of diaphragm for scanning electron microscope |
| CN105290700A (en) * | 2015-12-09 | 2016-02-03 | 镇江远大传动机械有限公司 | Welding fixture for joint tube of universal joint and spline sleeve |
| US20190030649A1 (en) * | 2016-04-04 | 2019-01-31 | Trumpf Werkzeugmaschinen Gmbh + Co. Kg | Methods and machine tools for machine-cutting workpieces in plate form or bar form |
| CN112975168A (en) * | 2021-03-02 | 2021-06-18 | 哈尔滨汽轮机厂有限责任公司 | Method for cutting hole in transition section bushing of 300 MW-level heavy gas turbine by laser |
-
2021
- 2021-08-02 CN CN202110881746.8A patent/CN113523605A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202004014772U1 (en) * | 2004-09-21 | 2004-12-16 | Mobil Laser Tec Gmbh | Pipe-cutting device for partly automated cutting of objects like pipes applies thermal cutting process with positioning and measuring devices |
| CN201154415Y (en) * | 2007-09-21 | 2008-11-26 | 北京工业大学 | Ultraviolet laser machining system of diaphragm for scanning electron microscope |
| CN105290700A (en) * | 2015-12-09 | 2016-02-03 | 镇江远大传动机械有限公司 | Welding fixture for joint tube of universal joint and spline sleeve |
| US20190030649A1 (en) * | 2016-04-04 | 2019-01-31 | Trumpf Werkzeugmaschinen Gmbh + Co. Kg | Methods and machine tools for machine-cutting workpieces in plate form or bar form |
| CN112975168A (en) * | 2021-03-02 | 2021-06-18 | 哈尔滨汽轮机厂有限责任公司 | Method for cutting hole in transition section bushing of 300 MW-level heavy gas turbine by laser |
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Application publication date: 20211022 |
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| WW01 | Invention patent application withdrawn after publication |