CN112719798B - High-precision wind power middle box body and processing technology thereof - Google Patents
High-precision wind power middle box body and processing technology thereof Download PDFInfo
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- CN112719798B CN112719798B CN202011510378.8A CN202011510378A CN112719798B CN 112719798 B CN112719798 B CN 112719798B CN 202011510378 A CN202011510378 A CN 202011510378A CN 112719798 B CN112719798 B CN 112719798B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
- F03D9/20—Wind motors characterised by the driven apparatus
- F03D9/25—Wind motors characterised by the driven apparatus the apparatus being an electrical generator
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The invention discloses a high-precision wind power middle box body and a processing technology thereof, and the processing technology of the high-precision wind power middle box body comprises the following steps: s1, selecting materials; s2, roughly machining a lower reference plane and an inner hole; s3, roughly machining an upper reference plane; s4, processing a unthreaded hole on the upper reference plane; s5, drilling and tapping the periphery of the workpiece; s6, machining a unthreaded hole and a threaded hole on the lower reference plane; s7, aging treatment; s8, finishing a lower reference plane, an inner hole, a central hole, all unthreaded holes and threaded holes; s9, finishing the surface and the unthreaded hole of the upper reference plane; the invention processes the workpiece by setting the upper datum plane, the inner hole and the lower datum plane as the datum, and has the advantages of convenient positioning and processing, high processing precision, reduced processing error and high processing production efficiency.
Description
Technical Field
The invention relates to the technical field of wind power generation, in particular to a high-precision wind power middle box body and a processing technology thereof.
Background
Along with the development of society, the demand of energy is gradually increasing, and the conversion of fossil energy into secondary energy which can be directly used is not efficient and causes environmental pollution. However, wind energy is a clean energy source and has great energy value, so that more and more wind generators are put into use.
The invention provides a high-precision wind power middle box body and a processing technology thereof, which can solve the problems.
Disclosure of Invention
The invention aims to provide a high-precision wind power middle box body and a processing technology thereof, so as to solve the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions:
a high-precision wind power middle box body processing technology comprises the following steps:
s1, selecting a material, and selecting a cast blank material for rough machining into a workpiece shape;
s2, roughly machining a lower reference plane and an inner hole, inversely placing a workpiece on a clamping table, clamping the bottom of the workpiece after being inversely placed, and roughly machining the lower reference plane and the inner hole by using a vertical lathe workpiece, wherein the flatness of the outer wall of the workpiece is 0-1.5mm and the radial runout is 0-2 mm;
s3, roughly machining an upper reference plane, placing a workpiece on a clamping table, clamping the bottom of the workpiece, keeping a certain gap between the workpiece and the clamping table, wherein the flatness of the lower reference plane is 0-0.3mm, the radial runout of the inner wall of an inner hole is 0-0.2mm, and roughly machining the upper reference plane by using a vertical lathe;
s4, machining a unthreaded hole on the upper reference plane, placing a workpiece on a clamping table, clamping the bottom of the workpiece, keeping a certain gap between the workpiece and the clamping table, and machining the unthreaded hole by using a gantry machining center, wherein the flatness of the lower reference plane is 0-0.2mm, and the radial runout of the inner wall of the inner hole is 0-0.2 mm;
s5, drilling and tapping the periphery of the workpiece, inversely placing the workpiece on a clamping table, clamping the bottom of the workpiece after being inversely placed, keeping a certain gap between the workpiece and the clamping table, and forming a surface with the flatness of a reference plane of 0-0.1mm and the straightness of the centers of two opposite unthreaded holes of the upper reference plane of 0-1mm, and machining threaded holes and unthreaded holes according to products by using a horizontal machining center;
s6, machining a unthreaded hole and a threaded hole on a lower reference plane, inversely placing a workpiece on a clamping table, clamping the bottom of the workpiece after being inversely placed, keeping a certain gap between the workpiece and the clamping table, and tapping the workpiece with the flatness of the upper reference plane of 0-0.1mm and the radial runout of the inner wall of an inner hole of 0-0.2mm, wherein the unthreaded hole is machined by using a gantry machining center and the threaded hole is tapped by using a drilling hole;
s7, aging treatment is carried out, and aging treatment is carried out on the workpiece;
s8, inversely placing the workpiece on a clamping table, clamping the bottom of the workpiece after being inversely placed, keeping a certain gap between the workpiece and the clamping table, and polishing the surface with the flatness of the upper reference plane of 0-0.1mm, the radial runout of the inner wall of the inner hole of 0-0.2mm and the radial runout of the inner wall of the inner hole of 0-0.2mm, and finely machining the lower reference plane, the inner hole, each unthreaded hole and the threaded hole according to a finished product by using a vertical lathe;
s9, finishing the upper reference plane and finishing the surface and the unthreaded hole, placing the workpiece on a clamping table, keeping a certain gap between the workpiece and the clamping table, marking the flatness of the lower reference plane to be 0-0.03mm, and radially jumping the inner wall of the inner hole to be 0-0.015mm, and finishing the upper reference plane and the surface and the unthreaded hole according to the finished product by using a gantry type machining center.
In the step S2, the vertical lathe is VL-160CM, the diameter of the inner hole is Φ816 0- +0.2mm, and a machining allowance of 2mm is reserved on a single side of the lower reference plane.
As a preferable technical scheme of the invention, in the step S3, the model of the vertical lathe is VL-160CM, and a machining allowance of 2mm is reserved on one side of the upper datum plane.
In the step S4, the model in gantry processing is FV3224E; the upper reference plane is processed with 30 x phi 24H7 unthreaded holes in an array mode, 30 x phi 24H7 unthreaded holes are processed in a rough mode, and 2mm machining allowance is reserved on one side.
In a preferred embodiment of the present invention, in the step S5, the model number of the horizontal machining center is MZK125.
In the step S6, the model of the gantry machining center is FV3224E; the lower reference plane is provided with 36 x phi 40 unthreaded holes in an array manner; the lower datum plane is provided with 36 x 33H7 threaded holes in an array mode, the threaded holes are drilled and rough machined before tapping, and 2mm machining allowance is reserved on one side.
In the step S7, the aging treatment is performed to place the workpiece at room temperature or under natural conditions for three days, thereby eliminating internal stress of the workpiece, stabilizing the structure and size, and improving mechanical properties.
In the step S8, the vertical lathe is VL-160C, and the processing is performed in a constant temperature chamber.
In the step S9, the model of the gantry type machining center is LB-433, and the machining is performed in a constant temperature room.
A high-precision wind power middle box body is provided with the box body formed by the processing technology.
As a preferable technical scheme of the invention, the holding rod is also provided with an anti-skid sleeve.
Compared with the prior art, the invention has the beneficial effects that: according to the high-precision wind power middle box body machining process, the workpieces are machined by taking the upper datum plane, the inner hole and the lower datum plane as the datum, so that the positioning machining is convenient, the machining precision is high, the machining error is reduced, and the machining production efficiency is high.
Drawings
FIG. 1 is a flow chart of the processing technique of the invention;
FIG. 2 is a schematic diagram of a box structure in wind power according to the invention;
FIG. 3 is a top view of a box in wind power according to the present invention;
FIG. 4 is a bottom view of a box in wind power according to the invention;
FIG. 5 is a cross-sectional view of a box in wind power according to the invention;
in the figure: 1. an upper reference plane; 2. an inner bore; 3. and a lower reference plane.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the azimuth or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
Referring to fig. 1-5, the present invention provides a technical solution:
a high-precision wind power middle box body processing technology comprises the following steps:
s1, selecting a material, and selecting a cast blank material for rough machining into a workpiece shape;
s2, roughly machining a lower reference plane and an inner hole, inversely placing a workpiece on a clamping table, clamping the bottom of the workpiece after being inversely placed, wherein the flatness of the outer wall of the workpiece is 0-1.5mm, the radial runout is 0-2mm, roughly machining the lower reference plane and the inner hole by using a vertical lathe workpiece, the model of the vertical lathe is VL-160CM, the diameter of the inner hole is phi 816 0- +0.2mm, and 2mm machining allowance is reserved on a single side of the lower reference plane;
specifically, the lower datum plane and the inner hole are roughly machined, so that the positioning function is realized for the next machining, the machining error is reduced, and the machining precision is improved;
s3, roughly machining an upper reference plane, placing a workpiece on a clamping table, clamping the bottom of the workpiece, keeping a certain gap between the workpiece and the clamping table, wherein the planeness of the lower reference plane is 0-0.3mm, the radial runout of the inner wall of an inner hole is 0-0.2mm, roughly machining the upper reference plane by using a vertical lathe, the model of the vertical lathe is VL-160CM, and 2mm machining allowance is reserved on one side of the upper reference plane;
specifically, the upper datum plane is machined by taking the lower datum plane and the inner hole as the datum, so that the positioning machining is convenient, the machining precision is high, a certain gap is reserved between the workpiece and the clamping table, and the flatness detection of the lower datum plane is facilitated;
s4, machining a unthreaded hole on an upper reference plane, placing a workpiece on a clamping table, clamping the bottom of the workpiece, keeping a certain gap between the workpiece and the clamping table, and performing surface punching, wherein the flatness of the lower reference plane is 0-0.2mm, the radial runout of the inner wall of an inner hole is 0-0.2mm, and machining the unthreaded hole by using a gantry machining center, wherein the model in gantry machining is FV3224E; the upper reference plane is processed with 30 x phi 24H7 unthreaded holes in an array manner, the 30 x phi 24H7 unthreaded holes are processed in a rough manner, and a machining allowance of 2mm is reserved on one side;
specifically, the polishing hole is processed by taking the lower reference plane and the inner hole as the reference, the positioning processing is convenient, the processing precision is high, a certain gap is reserved between the workpiece and the clamping table, the flatness detection is convenient for the lower reference plane, the processing allowance of 2mm is reserved for the light Kong Shanbian, the processing precision is further improved, the matching grade of the polishing hole is controlled, the matching precision is high,
s5, drilling and tapping the periphery, inversely placing a workpiece on a clamping table, clamping the bottom of the workpiece after being inversely placed, keeping a certain gap between the workpiece and the clamping table, and forming a surface with the flatness of a reference plane of 0-0.1mm and the straightness of the centers of two opposite unthreaded holes of the upper reference plane of 0-1mm, wherein a horizontal machining center is used for machining threaded holes and unthreaded holes according to finished products, and the model of the horizontal machining center is MZK;
specifically, the four-side threaded holes and the light holes are processed by taking the two pairs of light holes of the reference plane and the upper reference plane as references, so that the positioning processing is convenient, and the processing precision is high;
s6, machining a unthreaded hole and a threaded hole on a lower reference plane, inversely placing a workpiece on a clamping table, clamping the bottom of the workpiece after being inversely placed, keeping a certain gap between the workpiece and the clamping table, and performing surface punching, wherein the flatness of the upper reference plane is 0-0.1mm, the radial runout of the inner wall of an inner hole is 0-0.2mm, machining the unthreaded hole and drilling and tapping the threaded hole by using a gantry machining center, and the model of the gantry machining center is FV3224E; the lower reference plane is provided with 36 x phi 40 unthreaded holes in an array manner; the lower reference plane is provided with 36 x phi 33H7 threaded holes in an array mode, drilling and rough machining are carried out before tapping of the threaded holes, and 2mm machining allowance is reserved on a single side;
specifically, the smooth hole and the threaded hole are machined on the lower reference plane through the upper reference plane and the inner reference plane, the smooth hole and the threaded hole are mutually used as references, positioning machining is facilitated, machining accuracy is high, 2mm machining allowance is reserved on a single side through drilling and rough machining before tapping the threaded hole, and matching accuracy of the threaded hole is improved.
S7, aging treatment, namely aging treatment is carried out on the workpiece, the workpiece is placed at room temperature or under natural conditions for three days, the internal stress of the workpiece is eliminated, the tissue and the size are stabilized, and the mechanical property is improved;
specifically, the internal stress of the workpiece is eliminated, the structure and the size are stabilized, the mechanical property is improved, and the subsequent finish machining operation is facilitated through ageing treatment;
s8, inversely placing the workpiece on a clamping table, clamping the bottom of the workpiece after being inversely placed, keeping a certain gap between the workpiece and the clamping table, marking the upper reference plane with flatness of 0-0.1mm, radial runout of 0-0.2mm on the inner wall of the inner hole, and finishing the lower reference plane, the inner hole, each unthreaded hole and the threaded hole according to a finished product by using a vertical lathe, wherein the model of the vertical lathe is VL-160C, and processing the workpiece in a constant temperature chamber.
Specifically, by processing in a constant temperature chamber, the influence of external environment on processing precision is eliminated, so that the workpiece is ensured not to expand and shrink due to temperature change during processing, and the processing precision is high;
s9, finishing the upper reference plane and finishing the surface and the unthreaded hole, placing the workpiece on a clamping table, keeping a certain gap between the workpiece and the clamping table, marking the flatness of the lower reference plane to be 0-0.03mm, and performing radial runout on the inner wall of the inner hole to be 0-0.015mm, finishing the upper reference plane and the surface of the unthreaded hole according to a finished product by using a gantry machining center, wherein the model of the gantry machining center is LB-433, and performing machining in a constant temperature chamber;
specifically, through processing in the constant temperature room, eliminate external environment and influence machining precision and guarantee that the work piece can not produce the shrink because of temperature variation when processing, machining precision is high.
Example 2
A high-precision wind power middle box body is formed based on the processing technology of the embodiment 1.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The processing technology of the high-precision wind power middle box body is characterized by comprising the following steps of:
s1, selecting a material, and selecting a cast blank material for rough machining into a workpiece shape;
s2, roughly machining a lower reference plane and an inner hole, inversely placing a workpiece on a clamping table, clamping the bottom of the workpiece after being inversely placed, and roughly machining the lower reference plane and the inner hole by using a vertical lathe, wherein the flatness of the outer wall of the workpiece is 0-1.5mm, and the radial runout is 0-2 mm;
s3, roughly machining an upper reference plane, placing a workpiece on a clamping table, clamping the bottom of the workpiece, keeping a certain gap between the workpiece and the clamping table, wherein the flatness of the lower reference plane is 0-0.3mm, the radial runout of the inner wall of an inner hole is 0-0.2mm, and roughly machining the upper reference plane by using a vertical lathe;
s4, machining a unthreaded hole on the upper reference plane, placing a workpiece on a clamping table, clamping the bottom of the workpiece, keeping a certain gap between the workpiece and the clamping table, and machining the unthreaded hole by using a gantry machining center, wherein the flatness of the lower reference plane is 0-0.2mm, and the radial runout of the inner wall of the inner hole is 0-0.2 mm;
s5, drilling and tapping the periphery of the workpiece, inversely placing the workpiece on a clamping table, clamping the bottom of the workpiece after being inversely placed, keeping a certain gap between the workpiece and the clamping table, and forming a surface with the flatness of a reference plane of 0-0.1mm and the straightness of the centers of two opposite unthreaded holes of the upper reference plane of 0-1mm, and machining threaded holes and unthreaded holes according to products by using a horizontal machining center;
s6, machining a unthreaded hole and a threaded hole on a lower reference plane, inversely placing a workpiece on a clamping table, clamping the bottom of the workpiece after being inversely placed, keeping a certain gap between the workpiece and the clamping table, and tapping the workpiece with the flatness of the upper reference plane of 0-0.1mm and the radial runout of the inner wall of an inner hole of 0-0.2mm, wherein the unthreaded hole is machined by using a gantry machining center and the threaded hole is tapped by using a drilling hole;
s7, aging treatment is carried out, and aging treatment is carried out on the workpiece;
s8, inversely placing the workpiece on a clamping table, clamping the bottom of the workpiece after being inversely placed, keeping a certain gap between the workpiece and the clamping table, and polishing the upper reference plane to have flatness of 0-0.1mm and radial runout of the inner wall of the inner hole to be 0-0.2mm, and finely machining the lower reference plane, the inner hole, the central hole, each unthreaded hole and the threaded hole according to a finished product by using a vertical lathe;
s9, finishing the upper reference plane and finishing the surface and the unthreaded hole, placing the workpiece on a clamping table, keeping a certain gap between the workpiece and the clamping table, marking the flatness of the lower reference plane to be 0-0.03mm, and radially jumping the inner wall of the inner hole to be 0-0.015mm, and finishing the upper reference plane and the surface and the unthreaded hole according to the finished product by using a gantry type machining center.
2. The high-precision wind power middle box body processing technology according to claim 1, wherein in the step S2, the vertical lathe model is VL-160CM, and the inner hole diameter is phi 816 + 0 0.2 And mm, wherein a machining allowance of 2mm is reserved on one side of the lower reference plane.
3. The high-precision wind power middle box body processing technology according to claim 1, wherein in the step S3, the type of the vertical lathe is VL-160CM, and 2mm machining allowance is reserved on a single side of an upper datum plane.
4. The high-precision wind power middle box body processing technology according to claim 1, wherein in the step S4, the model of a gantry type processing center is FV3224E; the upper reference plane is processed with 30 x phi 24H7 unthreaded holes in an array mode, 30 x phi 24H7 unthreaded holes are processed in a rough mode, and 2mm machining allowance is reserved on one side.
5. The high-precision wind power middle box processing technology according to claim 1, wherein in the step S5, the model number of the horizontal processing center is MZK125.
6. The high-precision wind power middle box body processing technology according to claim 1, wherein in the step S6, the model of a gantry type processing center is FV3224E; the lower reference plane is provided with 36 x phi 40 unthreaded holes in an array manner; the lower datum plane is provided with 36 x 33H7 threaded holes in an array mode, the threaded holes are drilled and rough machined before tapping, and 2mm machining allowance is reserved on one side.
7. The high-precision wind power box processing technology according to claim 1, wherein in the step S7, the aging treatment is to place the workpiece at room temperature for three days, so as to eliminate internal stress of the workpiece, stabilize the structure and size, and improve mechanical properties.
8. The process for machining the high-precision wind power middle box body according to claim 1, wherein in the step S8, the vertical lathe model is VL-160C, and machining is performed in a constant temperature chamber.
9. The process for machining the high-precision wind power middle box body according to claim 1, wherein in the step S9, the model of a gantry type machining center is LB-433, and machining is performed in a constant temperature chamber.
10. A high-precision wind power middle box body is characterized by comprising the box body formed by the processing technology described in the claim 1.
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| CN112719798A (en) | 2021-04-30 |
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