CN111161402B - Method, device and equipment for processing machine shell of compressor - Google Patents
Method, device and equipment for processing machine shell of compressor Download PDFInfo
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- CN111161402B CN111161402B CN201911310224.1A CN201911310224A CN111161402B CN 111161402 B CN111161402 B CN 111161402B CN 201911310224 A CN201911310224 A CN 201911310224A CN 111161402 B CN111161402 B CN 111161402B
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- 238000000034 method Methods 0.000 title claims abstract description 42
- 238000003466 welding Methods 0.000 claims abstract description 110
- 238000003754 machining Methods 0.000 claims abstract description 71
- 238000003672 processing method Methods 0.000 claims abstract description 9
- 238000003860 storage Methods 0.000 claims description 10
- 238000004590 computer program Methods 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 description 9
- 238000004458 analytical method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000005266 casting Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
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- 238000010923 batch production Methods 0.000 description 1
- 230000019771 cognition Effects 0.000 description 1
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- 238000005265 energy consumption Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Abstract
The application discloses a processing method, a processing device and processing equipment for a processing machine shell of a compressor, relates to the technical field of computer software, and can solve the problem that the processing machine shell cannot directly use welding parts to generate processing drawings. The method comprises the following steps: firstly, creating shell model skeleton information of a compressor; then, according to the framework information of the shell model, a pre-welding model with a welding interface and machining allowance is created, and a virtual part model is created, wherein the virtual part model has a state that all parts in the pre-welding model are welded; and finally, generating machining shell drawing information of the compressor according to the pre-welding model and the virtual machine model, so that projection creation is performed by using the virtual piece model when machining is performed by using the machining shell drawing information. The present application is applicable to the handling of compressor welded casings to process casings.
Description
Technical Field
The present disclosure relates to the field of computer software technologies, and in particular, to a method, an apparatus, and a device for processing a processing casing of a compressor.
Background
The horizontal split (MCL) compressor shell is spliced by adopting plates in a welding mode, and compared with a cast shell, the casting cost can be saved, and the manufacturing period is shortened. The welding has obvious advantages in single-piece and small-batch production due to the characteristics of welding, and the casting production process has poor casting quality, low efficiency, high energy consumption, environmental pollution and the like due to various and complex procedures. Most of the current low-pressure centrifugal compressors adopt plate welding shells, so that the production period is greatly shortened.
The upper and lower welding shells of the horizontal split compressor are respectively composed of an upper flange, a lower flange, an outer shell plate, an inner shell plate, a partition plate, a support ring body, a sealing body and other parts. Due to production and processing requirements, all groove types of the spliced plates need to be displayed in a welding drawing so as to meet the preparation before welding. In the traditional cognition, the parts are regarded as integral parts after being welded, and the parts no longer have a decomposition structure.
At present, in order to ensure the inheritance of a model in three-dimensional design, a finally presented processing model needs to rely on the assembly modeling of welded parts to form the association of the model and drawings with sub-parts. Then, the size of the machining shell can be generated only by filling the welding groove and removing the machining allowance on the part with the groove and the allowance, so that the machining shell cannot directly use the welding part to generate the machining drawing, manual redrawing adjustment is needed, and the generation efficiency of the machining shell drawing is further affected.
Disclosure of Invention
In view of this, the present application provides a method, an apparatus and a device for processing a processing casing of a compressor, which mainly aims to solve the technical problem that in the prior art, the processing casing cannot directly use welded parts to generate drawings, and manual redraw adjustment is required, so that the generation efficiency of the processing casing drawings can be affected.
According to one aspect of the present application, there is provided a method of processing a casing of a compressor, the method comprising:
creating shell model skeleton information of the compressor;
creating a pre-welding model with a welding interface and machining allowance according to the shell model skeleton information, and creating a virtual part model, wherein the virtual part model has a state of each part in the pre-welding model after welding;
and generating machining shell drawing information of the compressor according to the pre-welding model and the virtual machine model, so that projection creation is performed by using the virtual piece model when machining is performed by using the machining shell drawing information.
According to another aspect of the present application, there is provided a processing casing processing apparatus of a compressor, the apparatus comprising:
the creation module is used for creating shell model skeleton information of the compressor;
the creation module is further used for creating a pre-welding model with a welding interface and machining allowance according to the chassis model skeleton information and creating a virtual part model, wherein the virtual part model has a state of each part in the pre-welding model after welding;
the generating module is used for generating the machining shell drawing information of the compressor according to the pre-welding model and the virtual machine model, so that the virtual piece model is used for projection creation when the machining shell drawing information is used for machining.
According to yet another aspect of the present application, there is provided a storage device having stored thereon a computer program which when executed by a processor implements the above-described compressor processing method of processing a casing.
According to a further aspect of the present application, there is provided a physical device for processing a compressor casing, comprising a storage device, a processor and a computer program stored on the storage device and executable on the processor, the processor implementing the method for processing a compressor casing as described above when executing the program.
By means of the technical scheme, the processing method, the processing device and the processing equipment for the processing machine shell of the compressor can be used for creating a pre-welding model with a welding interface and machining allowance according to the framework information of the machine shell model of the compressor and creating a virtual part model, wherein the virtual part model has the state that all parts in the pre-welding model are welded. And then generating the machining shell drawing information of the compressor according to the model before welding and the virtual machine model, so that the virtual piece model is used for projection creation when the machining shell drawing information is used for machining. Compared with the prior art, the method has the advantages that the mode of replacing the processing machine shell by the virtual part model is realized, the original model tree structure is reserved, all drawings are associated with the bottom part, and the processing drawings with production requirements are generated. The virtual parts exist in a virtual mode, do not participate in quality attribute analysis, do not generate a ball mark, and do not generate interference. And further, the processing from the welding shell to the processing shell is realized, and the generation efficiency of the drawing of the processing shell is improved, so that the design efficiency of the compressor is improved.
The foregoing description is only an overview of the technical solutions of the present application, and may be implemented according to the content of the specification in order to make the technical means of the present application more clearly understood, and in order to make the above-mentioned and other objects, features and advantages of the present application more clearly understood, the following detailed description of the present application will be given.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the application. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:
fig. 1 is a schematic flow chart of a processing method of a processing casing of a compressor according to an embodiment of the present application;
FIG. 2 is a schematic flow chart of another method for processing a casing of a compressor according to an embodiment of the present disclosure;
FIG. 3 is a schematic diagram of a framework structure of a framework design of a shell model according to an embodiment of the present disclosure;
FIG. 4 is a schematic diagram of an example of a tree structure of a machining chassis model according to an embodiment of the present disclosure;
FIG. 5 is a schematic diagram of an example of a model tree structure of a virtual part of a processing machine shell according to an embodiment of the present application;
fig. 6 shows a schematic structural diagram of a processing device for a processing casing of a compressor according to an embodiment of the present application;
fig. 7 shows a schematic physical structure of a compressor processing case processing apparatus according to an embodiment of the present application.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be 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 disclosure to those skilled in the art.
At present, the size of the machining shell can be generated only by filling and welding grooves and removing machining allowance on parts with grooves and allowance, so that the technical problem that the machining shell cannot directly use welding parts to generate a machining drawing in the prior art, manual redrawing adjustment is needed, and the generation efficiency of the machining shell drawing can be affected is caused. To solve this problem, the present embodiment provides a method for processing a casing of a compressor, as shown in fig. 1, the method including:
101. shell model skeleton information of the compressor is created.
Optionally, the chassis model skeleton information may at least include: positioning skeleton parameters and reference information such as a benchmark, a model contour, a sub-part creation space, a sub-part assembly interface, an overall control parameter, reference transmission and the like.
In the process of creating the machining shell model, an overall model framework is preferentially created, and the framework can be created and designed according to the compressor structure of the machine type.
The execution body for the present embodiment may be a processing apparatus or device for a processing casing of a compressor, in particular, a three-dimensional model process for welding a casing to a processing casing of a compressor, so as to generate a processing drawing having production requirements.
102. And creating a pre-welding model with a welding interface and machining allowance according to the created chassis model skeleton information, and creating a virtual part model.
The virtual part model has a state in which each part in the model before welding is subjected to welding processing. In this embodiment, the original model is replaced by the virtual part model, and the virtual part model has no groove and no machining allowance, but is not a standard part, but is in a machined state, and is placed in the same-stage assembly of the welded part, so that the original model structure is not affected, and the virtual part model exists virtually. State transitions within the lifecycle of the enclosure may be achieved.
103. And generating machining shell drawing information of the compressor according to the pre-welding model and the virtual machine model, so that projection creation is performed by using the virtual piece model when machining shell drawing information is utilized for machining.
For the embodiment, the virtual part model is used for projection creation when the machining is performed, and the model before welding is hidden, namely the welding shell is only hidden in the machining and assembling process, which is equivalent to replacing the original model (with a groove and a machining allowance) by the virtual part model (without the groove and the machining allowance), thereby meeting the requirement of a machining drawing.
According to the processing method of the processing machine shell of the compressor, which aims at the problem that the processing machine shell in the prior art cannot directly use welding parts to generate processing drawings, the mode that the processing machine shell is replaced by a virtual part model is utilized, an original model tree structure is reserved, all drawings are associated with bottom parts, and the processing drawings with production requirements are generated. The virtual parts exist in a virtual mode, do not participate in quality attribute analysis, do not generate a ball mark, and do not generate interference. And further, the processing from the welding shell to the processing shell is realized, and the generation efficiency of the drawing of the processing shell is improved, so that the design efficiency of the compressor is improved.
Further, as an extension and refinement of the present embodiment, for a complete description of a specific implementation procedure of the present embodiment, another method for processing a processing casing of a compressor is provided, as shown in fig. 2, and the method includes:
201. shell model skeleton information of the compressor is created.
Optionally, the shell model skeleton information includes multi-level sub-skeleton information corresponding to a structural component model of each portion of the compressor shell model.
For example, as shown in fig. 3, the chassis model skeleton may be subdivided into a total skeleton, which is a chassis overall skeleton, and a multi-stage sub-skeleton; the primary sub-frameworks can comprise a cylinder framework, an air inlet cylinder framework, an air outlet cylinder framework and the like; the secondary sub-skeleton may be further subdivided into specific component sub-skeletons, etc.
202. And creating a pre-welding model with a welding interface and machining allowance according to the framework information of the shell model.
In the process of machining the shell model, an integral model framework is preferentially created, and the shell framework comprises a positioning benchmark, a model contour, a sub-part creation space, a sub-part assembly interface, integral control parameters, reference transmission and the like. And the welding shell establishes a pre-welding model with a welding groove and machining allowance by receiving the framework parameters and the reference information.
203. A virtual part model is created.
The virtual part model obtained through creation has a complete machined appearance, and a specific creation process of the virtual part model can have two optional modes, wherein one optional mode is to directly carry out integral creation of the shell model after copying the geometric and reference information issued by the shell model skeleton information and welding, so as to obtain the virtual part model, wherein the virtual part model does not contain a lower structural part model any more.
For example, after the model before welding is created, a virtual part model file is created next, and the overall creation of the shell model (without further including a lower model) is directly performed after the geometric and reference information issued by the framework is copied and welded. I.e., part model features are recreated using a reference upper level skeletal model.
Further, the virtual part model and the model before welding can be created by the same chassis model skeleton information. For the embodiment, the uniformity of the machined and welded shell is ensured by referring to the same skeleton information when the later design is changed.
In addition to the above manner of creating the virtual part model, another alternative is to directly combine each part model in the model before welding into an integral model through a contraction envelope, and perform groove addition and allowance removal processing on the integral model to obtain the virtual part model.
For example, also after the model before welding is created, the original multi-part model is directly combined into a whole model through shrinkage envelope and exists in a virtual part mode, the original shape of the original part can be completely duplicated by the created characteristics, and the groove position needs to be manually added. The uniformity of the design change of the processing and welding machine shell can be ensured by the correlative characteristic of the shrinkage envelope.
For the virtual part model creation process in this embodiment, the first alternative directly creates a whole model without groove and without allowance, and the second alternative requires manual groove addition and allowance removal. Which is specifically selected as the appropriate creation means according to the actual situation.
Further optionally, the embodiment can also combine two optional modes to comprehensively create the virtual part model according to the actual situation, so that the efficiency and accuracy of virtual part model creation can be improved, and the requirements of the actual situation can be met.
204. And generating the drawing information of the processing shell of the compressor according to the model before welding and the virtual machine model.
Optionally, the processing machine shell drawing information is provided with a model tree structure, and the virtual part model and the model before welding are in the same level assembly; the virtual part model exists in a virtual assembly mode, the model before welding has complete welding drawing information, and a process model from a welding machine shell to a processing machine shell is realized through assembly association.
205. And hiding the model before welding and displaying the virtual machine model when engineering view display is carried out on the machining shell drawing information.
For example, the structure of the processing machine shell is shown in fig. 4, and according to the current consensus and knowledge, no groove and welding part intersecting line should appear in the engineering drawing of the processing machine shell. In order to meet the engineering drawing requirements of the machining machine shell, the expression mode of the machining machine shell is treated by using the virtual part, namely, the characteristic expression bevelless machining machine shell is created in the virtual part; when the engineering drawing view is created, hiding the welding shell (upper and lower) component models, and displaying a virtual part model, wherein the model structure of the virtual part model is shown in fig. 5, and the machining shell (upper) -1W_XN and the machining shell (lower) -2W_XN correspond to the virtual part model; the welding shell (upper) and the welding shell (lower) correspond to the model before welding. When the corresponding engineering view is displayed, corresponding hidden display can be performed.
When the engineering drawing generated by the virtual piece is utilized for processing in the embodiment, in the process of specifically welding the shell, the welding processing is performed according to the hidden welding shell model size, and the welding shell is only hidden in the processing assembly and has normal welding drawings.
206. And when the machining machine shell drawing information is utilized for machining, the virtual part model is used for projection creation.
From the model tree structure, it is known that the modeling structure remains as it is, and only "virtual pieces (up/down)" are created in the assembly of the "machining chassis (up/down)" respectively, and the virtual pieces exist in a virtual assembly manner, which can be understood as being visible but practically absent. The process drawings are created by projection using only virtual parts (i.e. the welding model is hidden), but the welding model itself has drawings and still exists in the model tree, and by assembly correlations, is still a complete set of process models from welding to processing.
According to the processing method of the processing machine shell of the compressor, which is provided by the embodiment, aiming at the problem that the processing machine shell in the prior art cannot directly use welding parts to generate processing drawings, the mode that the processing machine shell is replaced by the virtual part model is utilized, the original model tree structure is reserved, all drawings are associated with bottom parts, and the processing drawings with production requirements are generated. The virtual parts exist in a virtual mode, do not participate in quality attribute analysis, do not generate a ball mark, and do not generate interference. And further, the processing from the welding shell to the processing shell is realized, and the generation efficiency of the drawing of the processing shell is improved, so that the design efficiency of the compressor is improved.
Further, as a specific implementation of the method of fig. 1, the present embodiment provides a processing apparatus for a processing casing of a compressor, as shown in fig. 6, where the apparatus includes: a creation module 31 and a generation module 32.
A creation module 31 operable to create shell model skeleton information of the compressor;
the creation module 31 is further configured to create a model before welding with a welding interface and machining allowance according to the chassis model skeleton information, and create a virtual part model, where the virtual part model has a state of each part in the model before welding after welding;
the generating module 32 is configured to generate machining case drawing information of the compressor according to the pre-welding model and the virtual machine model, so that projection creation is performed using the virtual piece model when machining is performed by using the machining case drawing information.
In a specific application scenario, optionally, the shell model skeleton information may include multi-level sub-skeleton information, where the multi-level sub-skeleton information corresponds to a structural component model of each part in the compressor shell model;
correspondingly, the creation module 31 may be specifically configured to directly perform integral creation of the shell model after copying the geometry of the shell model skeleton information and welding the reference information, so as to obtain a virtual part model, where the virtual part model no longer includes a lower-level structural part model.
In a specific application scenario, optionally, the virtual part model and the model before welding are created through the same shell model skeleton information.
In a specific application scenario, the creation module 31 may be specifically further configured to directly combine each component model in the model before welding into an overall model through a contraction envelope, and perform groove adding and allowance removing processing on the overall model to obtain a virtual component model.
In a specific application scenario, the device may further include: an output module 33;
and the output module 33 is used for hiding the model before welding and displaying the virtual machine model when the engineering view display is carried out on the drawing information of the processing machine shell.
In a specific application scenario, optionally, the processing machine shell drawing information has a model tree structure, and the virtual part model and the model before welding are in the same stage of assembly; the virtual part model exists in a virtual assembly mode, the model before welding has complete welding drawing information, and a process model from a welding machine shell to a machining machine shell is realized through assembly association.
In a specific application scenario, optionally, the chassis model skeleton information at least includes: positioning benchmarks, model contours, sub-part creation space, sub-part assembly interfaces, overall control parameters, and reference delivery.
It should be noted that, other corresponding descriptions of each functional unit related to the processing device for a processing casing of a compressor provided in this embodiment may refer to corresponding descriptions in fig. 1 and fig. 2, and are not repeated herein.
Based on the above-described methods shown in fig. 1 and 2, correspondingly, the present embodiment further provides a storage device, on which a computer program is stored, which when executed by a processor, implements the processing method of the processing casing of the compressor shown in fig. 1 and 2.
Based on the above-mentioned methods shown in fig. 1 and 2 and the embodiment of the virtual device shown in fig. 6, this embodiment further provides a physical device for processing a compressor processing casing, as shown in fig. 7, where the device includes: a processor 41, a storage device 42, and a computer program stored on the storage device 42 and executable on the processor 41, the processor 41 implementing the processing method of the processing casing of the compressor shown in fig. 1 and 2 when executing the program; the apparatus further comprises: bus 43 is configured to couple processor 41 and memory device 42.
By applying the technical scheme of the embodiment, the method and the device for generating the machining drawing aims at solving the problem that the machining machine shell in the prior art cannot directly use the welding part to generate the machining drawing, the mode that the machining machine shell is replaced by the virtual part model is utilized, the original model tree structure is reserved, all drawings are associated with the bottom part, and the machining drawing with production requirements is generated. The virtual parts exist in a virtual mode, do not participate in quality attribute analysis, do not generate a ball mark, and do not generate interference. And further, the processing from the welding shell to the processing shell is realized, and the generation efficiency of the drawing of the processing shell is improved, so that the design efficiency of the compressor is improved.
From the above description of the embodiments, it will be apparent to those skilled in the art that the present application may be implemented in hardware, or may be implemented by means of software plus necessary general hardware platforms. Based on such understanding, the technical solution of the present application may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (may be a CD-ROM, a U-disk, a mobile hard disk, etc.), and includes several instructions for causing a computer device (may be a personal computer, a server, or a network device, etc.) to perform the methods described in various implementation scenarios of the present application.
Those skilled in the art will appreciate that the drawings are merely schematic illustrations of one preferred implementation scenario, and that the modules or flows in the drawings are not necessarily required to practice the present application.
Those skilled in the art will appreciate that modules in an apparatus in an implementation scenario may be distributed in an apparatus in an implementation scenario according to an implementation scenario description, or that corresponding changes may be located in one or more apparatuses different from the implementation scenario. The modules of the implementation scenario may be combined into one module, or may be further split into a plurality of sub-modules.
The foregoing application serial numbers are merely for description, and do not represent advantages or disadvantages of the implementation scenario.
The foregoing disclosure is merely a few specific implementations of the present application, but the present application is not limited thereto and any variations that can be considered by a person skilled in the art shall fall within the protection scope of the present application.
Claims (8)
1. A method of processing a casing of a compressor, comprising:
creating shell model skeleton information of the compressor;
creating a pre-welding model with a welding interface and machining allowance according to the shell model skeleton information, and creating a virtual part model, wherein the virtual part model has a state of each part in the pre-welding model after welding;
generating machining shell drawing information of the compressor according to the pre-welding model and the virtual part model, so that projection creation is performed by using the virtual part model when machining is performed by using the machining shell drawing information, wherein the machining shell drawing information is provided with a model tree structure, and the virtual part model and the pre-welding model are in the same-stage assembly; the virtual part model exists in a virtual assembly mode, the model before welding has complete welding drawing information, and a process model from a welding shell to a processing shell is realized through assembly association;
the shell model skeleton information comprises multi-stage sub-skeleton information, and the multi-stage sub-skeleton information corresponds to a structural component model of each part in the shell model of the compressor;
the creating a virtual part model specifically comprises the following steps:
and after copying the geometric and reference information issued by the framework information of the shell model, welding, and directly performing integral creation of the shell model to obtain a virtual part model, wherein the virtual part model does not contain a lower structural part model any more.
2. The method of claim 1, wherein the virtual part model and the pre-weld model are created from the same chassis model skeleton information.
3. The method according to claim 1, wherein the creating a virtual part model specifically comprises:
and directly combining all the component models in the model before welding into an integral model through shrinkage envelope, and performing groove material adding and allowance removing treatment on the integral model to obtain a virtual component model.
4. The method according to claim 1, wherein the method further comprises:
and hiding the model before welding and displaying the virtual part model when engineering view display is carried out on the machining shell drawing information.
5. The method of claim 1, wherein the chassis model skeleton information includes at least: positioning benchmarks, model contours, sub-part creation space, sub-part assembly interfaces, overall control parameters, and reference delivery.
6. A processing casing processing apparatus of a compressor, comprising:
the creation module is used for creating shell model skeleton information of the compressor;
the creation module is further used for creating a pre-welding model with a welding interface and machining allowance according to the chassis model skeleton information and creating a virtual part model, wherein the virtual part model has a state of each part in the pre-welding model after welding;
the generation module is used for generating machining shell drawing information of the compressor according to the pre-welding model and the virtual piece model, so that projection creation is performed by using the virtual piece model when machining is performed by using the machining shell drawing information, wherein the machining shell drawing information is provided with a model tree structure, and the virtual piece model and the pre-welding model are in the same-stage assembly; the virtual part model exists in a virtual assembly mode, the model before welding has complete welding drawing information, and a process model from a welding shell to a processing shell is realized through assembly association;
the shell model skeleton information comprises multi-stage sub-skeleton information, and the multi-stage sub-skeleton information corresponds to a structural component model of each part in the shell model of the compressor;
the creation module is specifically configured to:
and after copying the geometric and reference information issued by the framework information of the shell model, welding, and directly performing integral creation of the shell model to obtain a virtual part model, wherein the virtual part model does not contain a lower structural part model any more.
7. A storage device having stored thereon a computer program, wherein the program when executed by a processor implements the method of processing a machine shell of a compressor as claimed in any one of claims 1 to 5.
8. A compressor casing processing apparatus comprising a storage device, a processor and a computer program stored on the storage device and executable on the processor, wherein the processor implements the compressor casing processing method of any one of claims 1 to 5 when executing the program.
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| CN101419635A (en) * | 2007-10-23 | 2009-04-29 | 成都飞机工业（集团）有限责任公司 | Method for automatically generating digital-analog conduit welding clamp intelligence system |
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| CN105404759A (en) * | 2015-12-25 | 2016-03-16 | 鼎奇(天津)主轴科技有限公司 | Three-dimensional or two-dimensional design method for welding structural parts |
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