CN107305362B - Pipeline steel pipe machining system based on three-dimensional CAD design - Google Patents

Pipeline steel pipe machining system based on three-dimensional CAD design Download PDF

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Publication number
CN107305362B
CN107305362B CN201610239056.1A CN201610239056A CN107305362B CN 107305362 B CN107305362 B CN 107305362B CN 201610239056 A CN201610239056 A CN 201610239056A CN 107305362 B CN107305362 B CN 107305362B
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device
unit
dimensional cad
machining
dimensional
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CN201610239056.1A
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CN107305362A (en
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郭冬青
陈大伟
张忠峰
张金生
李长明
赵玉仲
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秦皇岛烟草机械有限责任公司
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    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00Programme-control systems
    • G05B19/02Programme-control systems electric
    • G05B19/18Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
    • G05B19/4097Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by using design data to control NC machines, e.g. CAD/CAM

Abstract

The invention discloses a pipeline steel pipe machining system based on three-dimensional CAD design, which comprises a control unit, a material storage unit, a material transmission unit and a blanking machining unit, wherein the control unit comprises a three-dimensional CAD model recognition device, the material storage unit is connected with the blanking machining system through the material transmission unit, and the control unit also comprises a process control device which is connected with the three-dimensional CAD model recognition device and can convert three-dimensional recognition characteristics obtained by recognizing a three-dimensional CAD model by the three-dimensional CAD model recognition device into process instructions. The invention can realize the mechanized and high-precision production of the required steel pipes, greatly improve the processing precision of the processed steel pipes, and lead the specifications of the produced steel pipes to tend to be uniform.

Description

Pipeline steel pipe machining system based on three-dimensional CAD design

Technical Field

The invention belongs to the field of pipeline machining, and particularly relates to a pipeline steel pipe machining system based on three-dimensional CAD design.

Background

The processing and connection of the steel pipes are the central links of the pipeline installation project, and are important processes for building a design blueprint into a project entity and connecting all single equipment into a system. The steel pipe processing mainly comprises the processes of straightening, cutting, threading, bending and manufacturing of special-shaped pipe fittings and the like of the steel pipes, the steel pipes are connected in a threaded mode, and threaded processing is needed for threaded connection. The processing process of the steel pipe generally comprises a manual mode and a mechanical mode, and different processing modes are adopted in view of different process requirements.

At present, the design system of the front end of the pipeline in China is widely designed by adopting a three-dimensional platform, such as tools like PRO-E, Solidworks and the like, and the high-efficiency design of the pipeline product is realized. In the processing stage of the steel pipe, the pipeline steel pipe workpiece is still processed by adopting a manual mechanical mode.

The steel pipe is machined in a machining mode, the production capacity can be improved through relative manual work, the machining is implemented through manual operation, technicians are needed to participate in the whole machining process in the machining process, blanking and machining are carried out on the steel pipe in a manual mode, the labor intensity is high, the production efficiency is low, manpower and material resources are consumed, the machining quality of the steel pipe cannot be effectively guaranteed, the uneven condition of the steel pipe pipelines produced in batches still exists, the machining cost is indirectly increased, and the production effect is reduced.

The present invention has been made in view of this situation.

Disclosure of Invention

The technical problem to be solved by the invention is to overcome the defects of the prior art, and provide a pipeline steel pipe processing system based on three-dimensional CAD design, which realizes the mechanized and high-precision production of the required steel pipe by identifying a pipeline model designed by the three-dimensional CAD and converting the pipeline model into a machining instruction, can effectively improve the defects of the prior art, reduce the production cost and improve the production efficiency.

In order to solve the technical problems, the invention adopts the technical scheme that:

the utility model provides a pipeline steel pipe system of processing based on three-dimensional CAD design, includes control unit, storage unit, material transmission unit, unloading processing unit, the control unit include three-dimensional CAD model recognition device, the storage unit be connected with unloading processing unit through material transmission unit, the control unit still include be connected with three-dimensional CAD model recognition device and can convert the three-dimensional discernment feature that three-dimensional CAD model recognition device discerned three-dimensional CAD model and obtained into the technology control device of technology instruction.

Furthermore, the control unit also comprises a processing process control device connected with the process control device, and the control unit is respectively connected with the material storage unit, the material transmission unit and the blanking processing unit through the processing process control device and carries out bidirectional data transmission. The machining process control device is connected with the material storage unit, the material transmission unit and the blanking machining unit respectively, bidirectional data transmission is achieved, the machining process control device can effectively control the material storage unit, the material transmission unit and the blanking machining unit, transmission of bidirectional data can reflect actual production conditions to the machining process control device in time, all links can be coordinated and operated more effectively, and production is optimized.

Furthermore, the control unit also comprises a feature library which is connected with the process control device, is composed of three-dimensional identification features and manages the three-dimensional identification features and the process instructions which are correspondingly converted, and the data transmission of the feature library and the process control device is bidirectional data transmission. The establishment of the feature library can provide an effective database for the invention, and not only can directly load the three-dimensional CAD model of the steel pipe, but also can store the three-dimensional CAD model in actual production so as to directly call out the three-dimensional CAD model data from the feature library during subsequent production and reuse.

Furthermore, the process control device comprises a matching module for matching the three-dimensional identification features in the feature library and a conversion module for converting the three-dimensional identification features obtained by identifying the three-dimensional CAD model by the three-dimensional CAD model identification device. The system is divided into a matching module and a conversion module, and can preferentially match working procedures of the process control device with the feature library for conversion, so that the conversion action of the process control device is reduced, and the time from a model to a process instruction is saved.

Furthermore, the process control device can convert the process instruction into a processing process instruction and transmit the processing process instruction to the processing process control device. The process control device converts the three-dimensional identification characteristics into process instructions, then converts the process instructions into machining process instructions, and directly converts the digitalized process instructions into instructions required to be controlled in the machining process, so that the control from data to operation can be realized, and the conversion from process data to mechanical control is realized.

Further, the machining process control device can convert the machining process command into a machining operation and control the implementation of the machining operation. The machining process control device controls the mechanical action of the blanking machining unit by converting a machining process command into a machining action, and the conversion from the command to actual operation.

Further, the three-dimensional identification features include geometric attributes and appearance attributes of the three-dimensional CAD model. By identifying the geometric attributes and the appearance attributes of the three-dimensional CAD model, important parameters of model data are extracted, including inner diameter, outer diameter, section area, angle, length, wall thickness, section inertia moment, modulus and the like, so that the model data are identified more accurately, and a foundation is established for subsequent processing precision.

Further, the storage unit comprises a storage device and a feeding device, the storage device can classify and store the raw material steel pipes, the feeding device can feed the raw material steel pipes to the material conveying unit, the storage device is connected with the feeding device, and the storage unit is connected with the material conveying unit through the feeding device. The material storage device can supply the classified storage materials to the feeding device for extraction, the classified storage improves the material taking efficiency of the feeding device, and the automatic material taking after the material storage is realized.

Furthermore, the blanking processing unit comprises a blanking device, a beveling device, a thread device and a hole opening device, and the blanking processing unit is connected with the material transmission unit through the blanking device. The material transmission unit is directly connected with the blanking device of the blanking processing unit, so that the direct blanking process can be realized, and the integration of transportation and blanking is rapid.

Furthermore, the blanking device is respectively connected with the beveling device, the thread device and the hole opening device, and the beveling device, the thread device and the hole opening device are sequentially connected or connected in pairs. The blanking device is an initial procedure of a blanking processing unit, and the beveling device, the thread device and the hole opening device are sequentially connected or connected in pairs so as to ensure that certain steel pipes do not need one or more links during processing, shorten the circulation time of work materials and save resources.

Furthermore, the blanking processing unit can produce steel pipes with the processing length of 400-500 mm and the nominal diameter of DN 15-DN 120. The blanking processing system is set according to a specific size, so that the processing of the steel pipe can be thinned to a certain range, the equipment cost is reduced, and the energy consumption is saved.

After the technical scheme is adopted, compared with the prior art, the invention has the following beneficial effects.

The invention adopts the three-dimensional CAD model recognition device to recognize the three-dimensional characteristics of the three-dimensional CAD model, converts data according to the recognized three-dimensional recognition characteristics, takes the control of a processing machine as output, and realizes the integration of material conveying, blanking, processing, control and the like, thereby achieving the aim of realizing the actual production from the model.

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention to its proper form. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:

FIG. 1 is a schematic structural diagram of the present invention.

In the figure: 1. a control unit; 11. a three-dimensional CAD model recognition device; 12. a process control device; 13. a feature library; 14. a processing process control device 2 and a material storage unit; 21. a storage device; 22. a feeding device; 3. a material conveying unit; 4. a blanking processing unit; 41. a blanking device; 42. a beveling device; 43. a screw thread device; 44. and (4) a hole opening device.

It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.

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; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The invention relates to a pipeline steel pipe machining system based on three-dimensional CAD design, which comprises a control unit 1, a material storage unit 2, a material transmission unit 3 and a blanking machining unit 4, wherein the control unit 1 comprises a three-dimensional CAD model recognition device 11, the material storage unit 2 is connected with the blanking machining unit 4 through the material transmission unit 3, and the control unit 1 further comprises a process control device 12 which is connected with the three-dimensional CAD model recognition device 11 and can convert three-dimensional recognition characteristics obtained by the three-dimensional CAD model recognition device 11 through recognizing a three-dimensional CAD model into process instructions.

The control unit 1 is a core unit of the present invention, and is required to control the cooperative operation among the material storage unit 2, the material transmission unit 3, and the blanking processing unit 4, the control unit 1 further includes a processing procedure control device 14 connected to the process control device 12, and the control unit 1 is respectively connected to the material storage unit 2, the material transmission unit 3, and the blanking processing unit 4 through the processing procedure control device 14 and performs bidirectional data transmission. The machining process control device 14 is connected with the material storage unit 2, the material transmission unit 3 and the blanking machining unit 4 respectively, bidirectional data transmission is achieved, the machining process control device 14 sends operation instructions to other units to control operation of the other units, and the material storage unit 2, the material transmission unit 3 and the blanking machining unit 4 need to reflect actual production states to the machining process control device 14 in real time, so that real-time control over mechanical production is achieved, and production is optimized.

Preferably, the control unit 1, the storage unit 2, the material transmission unit 3 and the blanking processing unit 4 can adopt data connection in which every two are connected, for example, the storage unit 2 is connected with the blanking processing unit 4, the discharging condition can be timely reflected to the blanking processing unit 4, if the discharged material is a steel pipe with a longer size, the blanking processing unit 4 can operate in cooperation with the material transmission unit 3, the discharging is carried out while the transmission is carried out, and more equipment space is not occupied, so that the data can be directly communicated among the units, and the more timely reaction can further optimize the production control in the processing process.

The three-dimensional CAD model recognition device 11 is a key device for realizing the conversion from a model to a command, and the three-dimensional CAD model recognition device 11 converts three-dimensional recognition characteristics obtained by the recognition of the three-dimensional CAD model to realize preliminary data conversion. The three-dimensional identification characteristics comprise the geometric attributes and the appearance attributes of the three-dimensional CAD model, and the important parameters of the model data are extracted by identifying the geometric attributes and the appearance attributes of the three-dimensional CAD model.

Preferably, the three-dimensional CAD model recognition device 11 recognizes the inner diameter, the outer diameter, the cross-sectional area, the angle, the length, the wall thickness, the cross-sectional moment of inertia, and the modulus of the three-dimensional CAD model, collects data of processing need to be known about the steel pipe, and the three-dimensional recognition feature recognized and obtained by the three-dimensional CAD model recognition device 11 needs to be subjected to data conversion, and converts the geometric attribute and the appearance attribute of the three-dimensional recognition feature into a process instruction which can be used for production.

The process control unit 12 of the present invention is also capable of converting process commands into process commands and transmitting them to the process control unit 14. The process control device 12 converts the process command into a machining process command, directly converts the digitalized process parameter into an operation command of the machining process control machine, realizes the control of extracting the model data into the machine operation, and achieves the conversion from the process data to the machine control.

Preferably, the process control device 12 includes a first module for converting the three-dimensional identification features into process commands and a second module for converting the process commands into process commands, the first module and the second module are connected and can output data from the first module to the second module in a single direction, the process control device is connected with the process control device 14 through the second module, and the second module can transmit the process commands to the process control device 14 through a single-direction data channel.

The machining process control device 14 according to the present invention can convert the machining process command into a machining operation and control the execution of the machining operation, as the command is required to be executed after the operation command for controlling the machine is given. The machining process control device 14 converts a machining process command into a machining operation to control the machining operation of the blanking machining unit, and controls the machining operation by converting the command into an actual operation so that the machining operation can be actually performed on the steel pipe workpiece to be machined.

Preferably, the machining process control device 14 may convert the process command into a machining action and control the implementation of the machining action.

In the production and processing of the steel pipe, various processing needs to be performed, the blanking processing unit 4 comprises a blanking device 41, a beveling device 42, a thread device 43 and a hole opening device 44, and the blanking processing unit 4 is connected with the material transmission unit 3 through the blanking device 41. The material transmission unit 3 is directly connected with the blanking device 41 of the blanking processing unit 4, and the direct transportation and blanking integrated rapid production can be realized.

Example one

As shown in fig. 1, the pipeline steel pipe processing system based on three-dimensional CAD design according to the present embodiment includes a control unit 1, a material storage unit 2, a material transmission unit 3, and a blanking processing unit 4, where the control unit 1 includes a three-dimensional CAD model identification device 11, the material storage unit 2 is connected to the blanking processing unit 4 through the material transmission unit 3, and the control unit 1 further includes a process control device 12 that is connected to the three-dimensional CAD model identification device 11 and can convert a three-dimensional identification feature obtained by the three-dimensional CAD model identification device 11 identifying a three-dimensional CAD model into a process instruction.

The control unit 1 is a core unit of the present invention, and is required to control the cooperative operation among the material storage unit 2, the material transmission unit 3, and the blanking processing unit 4, the control unit 1 further includes a processing procedure control device 14 connected to the process control device 12, and the control unit 1 is respectively connected to the material storage unit 2, the material transmission unit 3, and the blanking processing unit 4 through the processing procedure control device 14 and performs bidirectional data transmission. The machining process control device 14 is connected with the material storage unit 2, the material transmission unit 3 and the blanking machining unit 4 respectively, bidirectional data transmission is achieved, the machining process control device 14 sends operation instructions to other units to control operation of the other units, and the material storage unit 2, the material transmission unit 3 and the blanking machining unit 4 need to reflect actual production states to the machining process control device 14 in real time, so that real-time control over mechanical production is achieved, and production is optimized.

Preferably, the control unit 1, the storage unit 2, the material transmission unit 3 and the blanking processing unit 4 can adopt data connection in which every two are connected, for example, the storage unit 2 is connected with the blanking processing unit 4, the discharging condition can be timely reflected to the blanking processing unit 4, if the discharged material is a steel pipe with a longer size, the blanking processing unit 4 can operate in cooperation with the material transmission unit 3, the discharging is carried out while the transmission is carried out, and more equipment space is not occupied, so that the data can be directly communicated among the units, and the more timely reaction can further optimize the production control in the processing process.

The three-dimensional CAD model recognition device 11 is a key device for realizing the conversion from a model to a command, and the three-dimensional CAD model recognition device 11 converts three-dimensional recognition characteristics obtained by the recognition of the three-dimensional CAD model to realize preliminary data conversion. The three-dimensional identification characteristics comprise the geometric attributes and the appearance attributes of the three-dimensional CAD model, and the important parameters of the model data are extracted by identifying the geometric attributes and the appearance attributes of the three-dimensional CAD model.

Preferably, the three-dimensional CAD model recognition device 11 recognizes the inner diameter, the outer diameter, the cross-sectional area, the angle, the length, the wall thickness, the cross-sectional moment of inertia, and the modulus of the three-dimensional CAD model, collects data of processing need to be known about the steel pipe, and the three-dimensional recognition feature recognized and obtained by the three-dimensional CAD model recognition device 11 needs to be subjected to data conversion, and converts the geometric attribute and the appearance attribute of the three-dimensional recognition feature into a process instruction which can be used for production.

After the three-dimensional identification features are identified, in order to be beneficial to subsequent production, collection and management are needed, the control unit 1 further comprises a feature library 13 which is connected with the process control device 12, is composed of the three-dimensional identification features and manages the three-dimensional identification features and the process instructions which are correspondingly converted, and data transmission between the feature library 13 and the process control device 12 is bidirectional data transmission. The establishment of the feature library 13 can provide an effective database for the invention, which not only can directly load the three-dimensional CAD model of the steel pipe, but also can store the three-dimensional identification features of the three-dimensional CAD model in actual production and the process instructions correspondingly converted, so that the three-dimensional identification features and the process instructions correspondingly converted can be directly called out from the feature library 13 during subsequent production and reuse.

Preferably, the process control device 12 according to the present invention includes a matching module for matching the three-dimensional identification features in the feature library and a conversion module for converting the three-dimensional identification features obtained by the three-dimensional CAD model identification device identifying the three-dimensional CAD model. At the beginning of the initial stage, the three-dimensional CAD model is recognized by the three-dimensional CAD model recognition device 11, the obtained three-dimensional recognition features are transmitted to the process control device 12, the process control device 12 firstly matches the three-dimensional recognition features with the feature library through the matching module, and further preferably, the three-dimensional recognition features are matched in the form of the codes corresponding to the modules, so that the matching operation and time are simplified. If the three-dimensional identification feature is stored in the feature library, the process control device 12 directly calls the stored three-dimensional identification feature of the feature library 13 and the process instruction corresponding to the stored three-dimensional identification feature, so that the conversion action of the process control device is reduced, and the operation and time from the model to the process instruction are saved. If the three-dimensional identification feature is not stored in the feature library 13, the process control device 12 directly converts the three-dimensional identification feature into a process command through a conversion module.

The process control unit 12 of the present invention is also capable of converting process commands into process commands and transmitting them to the process control unit 14. The process control device 12 converts the process command into a machining process command, directly converts the digitalized process parameter into an operation command of the machining process control machine, realizes the control of extracting the model data into the machine operation, and achieves the conversion from the process data to the machine control.

Preferably, the process control device 12 includes a first module for converting the three-dimensional identification features into process instructions and a second module for converting the process instructions into machining process instructions, the two modules are connected and can output data from the first module to the second module in a single direction, the process control device 12 is connected with the machining process control device 14 through the second module, and the second module can transmit the machining process instructions to the machining process control device 14 through a single-direction data channel.

The machining process control device 14 according to the present invention can convert the machining process command into a machining operation and control the execution of the machining operation, as the command is required to be executed after the operation command for controlling the machine is given. The machining process control device 14 converts the machining process command into a machining operation to control the mechanical operation of the blanking machining unit 4, converts the command into an actual operation, and controls the machining operation so that the mechanical operation is actually performed on the steel pipe workpiece to be machined.

Preferably, the machining process control device 14 may convert the process command into a machining action and control the implementation of the machining action.

The storage unit 2 is used as a storage place for steel pipe materials, the storage unit 2 comprises a storage device 21 capable of classifying and storing raw material steel pipes and a feeding device 22 capable of feeding the raw material steel pipes to the material transmission unit, the storage device 21 is connected with the feeding device 22, and the storage unit 2 is connected with the material transmission unit 3 through the feeding device 22. Receive and release the steel pipe material when storage unit 2, storage device 21 can carry out orderly classification and management to the material, stores respectively according to the length of steel pipe material, the pipe diameter difference, when treating processing needs the steel pipe material, and storage device 21 can supply feeding device 22 with the material steel pipe to draw, and feeding device 22 draws the material steel pipe from storage device 21 and feeds for material transmission unit 3, realizes the automatic feed of material steel pipe.

Preferably, the storage device 21 comprises a feeding port, a discharging port and an optimization selection module, during processing, the steel pipes to be processed are fed into the storage device 21 from the feeding port of the storage device 21, and after the storage device 21 is classified and divided, the optimization selection module selects the optimized steel pipes, and the optimized steel pipes are transmitted to the feeding device 22 from the discharging port. Distinguish feed inlet, discharge gate, can improve production efficiency with storage device 21's the orderly division of work under the condition of mutual noninterference, can use storage device 21's the function of categorised and selecting optimum material simultaneously, material resources are saved.

In the production and processing of the steel pipe, various processing needs to be performed, the blanking processing unit 4 comprises a blanking device 41, a beveling device 42, a thread device 43 and a hole opening device 44, and the blanking processing unit 4 is connected with the material transmission unit 3 through the blanking device 41. The material transmission unit 3 is directly connected with the blanking device 41 of the blanking processing unit 4, and the direct transportation and blanking integrated rapid production can be realized.

In order to better realize the step processing of the steel pipe, the blanking device 41 is respectively connected with a beveling device 42, a thread device 43 and a hole opening device 44, and the beveling device 42, the thread device 43 and the hole opening device 44 are sequentially connected or connected in pairs. The blanking device 41 is an initial process of the blanking processing unit 4, and the beveling device 42, the thread device 43 and the hole opening device 44 are connected in sequence or in pairs, so that certain links or certain links are not needed in certain steel pipe processing, the circulation time of work materials is shortened, and resources are saved.

The blanking processing unit 4 can produce steel pipes with the processing length of 400-500 mm and the nominal diameter of DN 15-DN 120. The blanking processing unit 4 is arranged according to a specific size, so that the processing of the steel pipe can be thinned to a certain range, the equipment cost is reduced, and the energy consumption is saved.

Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (7)

1. A pipeline steel pipe machining system based on three-dimensional CAD design comprises a control unit (1), a material storage unit (2), a material transmission unit (3) and a blanking machining unit (4), wherein the control unit (1) comprises a three-dimensional CAD model recognition device (11), the material storage unit (2) is connected with the blanking machining unit (4) through the material transmission unit (3), and the pipeline steel pipe machining system is characterized in that the control unit (1) further comprises a process control device (12) which is connected with the three-dimensional CAD model recognition device (11) and can convert three-dimensional recognition characteristics obtained by the three-dimensional CAD model recognition device (11) through recognizing a three-dimensional CAD model into process instructions; the control unit (1) further comprises a processing process control device (14) connected with the process control device (12), and the control unit (1) is respectively connected with the material storage unit (2), the material transmission unit (3) and the blanking processing unit (4) through the processing process control device (14) and carries out bidirectional data transmission;
the storage unit (2) comprises a storage device (21) and a feeding device (22), the storage device (21) can classify and store the raw material steel pipes, the feeding device can feed the raw material steel pipes to the material conveying unit, the storage device (21) is connected with the feeding device (22), and the storage unit (2) is connected with the material conveying unit (3) through the feeding device (22).
2. The three-dimensional CAD design-based pipeline steel pipe machining system according to claim 1, characterized in that the control unit (1) further comprises a feature library (13) connected with the process control device (12), composed of three-dimensional identification features and managing the three-dimensional identification features and the process instructions converted corresponding to the three-dimensional identification features, and the data transmission between the feature library (13) and the process control device (12) is bidirectional data transmission.
3. The three-dimensional CAD design-based pipeline steel pipe machining system according to claim 1, wherein the process control device (12) comprises a matching module for matching three-dimensional identification features in the feature library and a conversion module for converting the three-dimensional identification features obtained by the three-dimensional CAD model identification device (11) identifying the three-dimensional CAD model.
4. The three-dimensional CAD design-based pipeline steel pipe machining system according to claim 1, wherein the process control device (12) is further capable of converting process instructions into machining process instructions and transmitting the machining process instructions to the machining process control device (14), and the machining process control device (14) is capable of converting the machining process instructions into machining actions and controlling the implementation of the machining actions.
5. The three-dimensional CAD design based pipeline steel pipe machining system of claim 1, wherein said three-dimensional identification features include geometric attributes and appearance attributes of a three-dimensional CAD model.
6. The three-dimensional CAD design-based pipeline steel pipe machining system according to claim 1, characterized in that the blanking machining unit (4) comprises a blanking device (41), a beveling device (42), a threading device (43) and a hole forming device (44), and the blanking machining unit (4) is connected with the material conveying unit (3) through the blanking device (41).
7. The three-dimensional CAD design-based pipeline steel pipe machining system according to claim 6, characterized in that the blanking device (41) is respectively connected with a beveling device (42), a threading device (43) and a hole-opening device (44), and the beveling device (42), the threading device (43) and the hole-opening device (44) are connected in sequence or connected in pairs.
CN201610239056.1A 2016-04-18 2016-04-18 Pipeline steel pipe machining system based on three-dimensional CAD design CN107305362B (en)

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