CN107097044B - Machining process and tool device for large nuclear main pump shielding motor balance ring - Google Patents
Machining process and tool device for large nuclear main pump shielding motor balance ring Download PDFInfo
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- CN107097044B CN107097044B CN201710252134.6A CN201710252134A CN107097044B CN 107097044 B CN107097044 B CN 107097044B CN 201710252134 A CN201710252134 A CN 201710252134A CN 107097044 B CN107097044 B CN 107097044B
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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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- 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
- B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/14—Casings; Enclosures; Supports
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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
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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Abstract
A large-scale nuclear main pump shielding motor balance ring processing technology and a tool device thereof use a five-axis processing center and combine a special tool to process the upper and lower surfaces of a balance ring respectively, finish machining of a V-shaped groove is completed by using a ball-end milling cutter, and processing of a cylindrical surface is completed by using a large-diameter large-circular-angle circular-nose milling cutter, so that the processing requirement of the balance ring is met, and the quality of a processed surface is improved; by using the special tool device, the supporting of the convex-concave surface of the balance ring is realized, the workpiece is lifted away from the workbench, the number of tool parts is reduced, the possibility of interference of a cutter with a tool and the workbench in the machining process is reduced, the working efficiency is improved, and the product quality is ensured.
Description
The technical field is as follows: the invention relates to a machining process and a tool device for a balance ring of a large nuclear main pump shielding motor.
Background art: with the development of nuclear power technology, the requirement on the starting performance of a nuclear main pump shielding motor is higher and higher, so that the requirement on the performance of a motor thrust bearing is higher and higher. The balance ring is an annular part formed by connecting a plurality of bearing bushes of the thrust bearing, and a shielded motor adopting the structure has never been adopted before, so that the requirements on the dimensional precision, the form and position tolerance and the roughness of machining are high, and the balance ring is easy to deform in the machining process. For the new bearing component, a processing technology and a tooling device need to be designed to meet the processing requirements; all bearing bushes are connected by adopting a V-shaped groove structure, the thickness of the connecting part is thinner, and the balance ring needs to play a role similar to a spring in the working process, so that the surface processing quality is required to be good, and a local stress concentration point is not allowed, namely, a tool receiving table exists, so that the traditional processing scheme for the V-shaped groove structure, namely an end mill and a ball end mill, cannot be used; the cylindrical surface on the balance ring bearing bush plays a role in self-adjusting support, the requirement on surface quality is high, the global head milling cutter is usually adopted for processing, but the diameter of the global head milling cutter is not too large, the rotating speed of the spindle needs to be greatly increased when the global head milling cutter is required to obtain higher cutting speed, the load of a machine tool in the processing process is too heavy, and the processing condition is not stable.
The invention content is as follows: the invention aims to provide a machining process of a large-scale nuclear main pump shielding motor balance ring, and the technical scheme of the invention is as follows: the utility model provides a large-scale nuclear main pump canned motor compensating ring processing technology and tool equipment thereof, uses five-axis machining center, combines special frock, processes respectively upper and lower two sides of compensating ring, and its step includes:
1) Placing a balance ring milling blank 14 on a lower support plate 13, fixing the balance ring milling blank by using a screw 15, aligning the outer circle and the upper surface, and establishing a program zero point;
2) Roughing the upper first 1, second 2 and fourth 4 upper surface areas using a blade disc cutter;
3) Roughing the upper third upper surface 3 area with a blade-type end mill;
4) Roughing the residual part of the third upper surface 3 area by using a blade type ball end mill;
5) Performing semi-finishing on the third upper surface 3 region by using a blade type ball-end milling cutter, ensuring that the included angles between the cutter and the two side surfaces are equal in the processing process, forming a 45-degree included angle with the axis of the bottom fillet, and completing cutting at a certain depth layer by layer from top to bottom in a layer-by-layer cutting mode;
6) Semi-finishing and finishing the first upper surface 1, the second upper surface 2 and the fourth surface 4 area using a blade face milling cutter;
7) Still adopting the method of the step 5), encrypting cutter paths, reducing the step distance between each layer, and finely machining the third upper surface 3 region by using a blade type ball-end milling cutter;
8) Processing a square groove which is through up and down on the excircle process reserved part of the balance ring, using the square groove as a reference for turning over to determine the angle position of the balance ring, detaching a fixing screw 15, and preparing to turn over the balance ring;
9) After turning over the balance ring 16 with the first surface processed, placing the balance ring on the upper support plate 11, and fixing the balance ring 16 by using a screw 15;
10 Rough machining the first 7, second 8 and fourth 10 lower surface areas using a disc cutter insert;
11 Rough machining the third lower surface 9 area using an insert-type end mill;
12 Rough machining the remaining portion of the third lower surface 9 area using a blade type ball end mill;
13 Still using the method of 5), semi-finishing the third lower surface 9 area using a blade ball end mill;
14 Semi-finishing and finishing the second 8 and fourth 10 lower surface areas using an insert face milling cutter;
15 Still adopting the method of 5), encrypting cutter paths, reducing the step distance between each layer, and carrying out finish machining on the region of the third lower surface 9 by using a blade type ball-end milling cutter;
16 Semi-finishing and finishing the cylindrical surface at the position of the first lower surface 7 by using a large-diameter large-fillet round nose milling cutter;
17 Finishing the processing of the areas of the inner hollow cutter grooves 5 and the outer hollow cutter grooves 6;
18 Removing the fixing screws 15 at intervals, and processing the inner and outer circles of the regions where the fixing screws 15 are removed;
19 The balancing ring 16 is fixed to the support in the area of the removed screws 15 by means of a pressure plate 17, bolts 18 and nuts 19, the remaining screws 15 are removed and the remaining inner and outer circles are machined.
According to the invention, in the steps 7) and 9), the V-shaped grooves (3) and (9) of the balance ring are subjected to fine machining, aiming at the design requirement that the part of the balance ring cannot have obvious tool connecting marks, a traditional method for finish machining of a straight surface by using an end mill and a method for finish machining of an arc surface by using a ball head mill are not adopted, but a method for finish machining of all the straight surface and arc surface areas by using the ball head mill is adopted, so that the problem that a tool connecting table is easy to generate by using the end mill and the ball head mill is avoided, the consistency of the surface machining condition of the area is ensured, meanwhile, an included angle is formed between the ball head mill and the machined surface by using the characteristics of a five-axis machining center, the large-diameter area of the ball head is used as far as possible, and the adverse effect on the machined surface due to the fact that the cutting speed at the ball head mill is zero is avoided.
Meanwhile, in the invention, when the cylindrical surface on the lower surface of the balance ring is processed in the step 16), a traditional method for processing the cylindrical surface by using a global head milling cutter is not used, but a method for processing the cylindrical surface by using a large-diameter large-fillet round nose milling cutter is adopted, a cutter shaft is ensured to be vertical to the cylindrical axis and form a certain included angle with the cylindrical surface, and the cylindrical surface contour is processed layer by layer along the cylindrical axis, so that the linear speed of cutting is improved on the premise of not providing a larger main shaft rotating speed by a machine tool, the rigidity of the cutter in the processing process is improved, the problems that the diameter of the cutter is difficult to be larger by using a full ball head milling cutter, the integral rigidity of the cutter is not ideal, and the burden of the machine tool is too heavy are solved, thereby ensuring the stability of the processing process and improving the surface quality.
The invention further aims to provide a tool device of the balance ring of the large nuclear main pump shielding motor, which has good precision, for machining the balance ring on a five-axis machining center. The invention adopts the following technical scheme: a large-scale nuclear main pump shielding motor balance ring milling tooling device is characterized in that two ends of a plurality of vertical plates 12 are respectively inserted into an upper supporting plate 11 and a lower supporting plate 13 to form a support body; the number of the vertical plates 12 is six, each vertical plate 12 is vertically arranged, and the vertical plates 12 are uniformly distributed along the outer edges of the upper supporting plate 11 and the lower supporting plate 13; the vertical plate 12 is connected with the upper supporting plate 11 and the lower supporting plate 13 together in a welding mode, so that the connection is stable, and the strength requirement of the whole tool device is ensured; the upper support plate 11 and the balance ring 16 have the same convex-concave structure, and the convex-concave surface formed after the first surface of the upper support plate 11 and the balance ring 16 is processed is matched, so that good support is provided.
When the device is used, one surface of the device is fixed on a machine tool workbench through a key and a bolt, the balance ring is fixed on the other surface of the device through the bolt, a process threaded hole for clamping is reserved on the balance ring, the balance ring can be fixed on the device only through the bolt, and the number of parts required by connection is reduced; when the balance ring process reserved part is machined, the balance ring is fixed on the device in an interval bridging mode by using bolts and a pressing plate, and the machining of the balance ring process reserved part is completed.
The beneficial effects of the invention are:
1) By using the special tool device for the balance ring and combining the technical process of the invention, the processing of the new bearing component of the balance ring is realized.
2) The method for semi-finishing and finish-machining all the straight surface and cambered surface areas of the V-shaped groove by using the ball end mill avoids the problem that a tool receiving table is easy to generate by using the end mill and the ball end mill, and ensures the consistency of the surface machining conditions of the areas.
3) When the ball-end milling cutter is used for processing the V-shaped groove, a processing mode of 'trailing cutter' is adopted, a certain included angle between the cutter and the surface to be processed is ensured, adverse effects on the processing surface due to zero cutting speed at the center of the cutter are avoided, and the product quality is ensured.
4) The large-diameter and large-circular-angle round nose milling cutter is adopted, so that the rigidity of the cutter in the machining process is improved, the linear speed of cutting is improved, and the problems that the cutter is difficult to be made to be larger in diameter and the integral rigidity of the cutter is not ideal due to the adoption of a full ball-end milling cutter are solved, so that the stability of the machining process is ensured, and the surface quality is improved.
5) The tool device is fixed on a machine tool workbench in a bolt connection mode, a workpiece is fixed on the tool device through the process holes, compared with a mode that the balance ring is fixed on the workbench directly through the pressing plate, the tool device has the advantages that the pressing plate and the bolts which are protruded do not exist near the surface to be machined, and the balance ring is pressed and positioned better through the plurality of pressing points.
6) Through the concave-convex structure corresponding to the machined first surface of the balance ring, the machining of the other surface of the balance ring is well supported and positioned, the thin-wall connection part between the machined V-shaped grooves is well protected, and deformation caused by stress in the machining process is avoided.
7) Through the height of the tool device, the surface to be processed of the balance ring is far away from the workbench, and the possibility of interference of a cutter, a tool and the workbench in the processing process is reduced, so that convenience is provided for the establishment of a numerical control processing program, the working efficiency is improved, and the product quality is ensured.
Drawings
FIG. 1 is an upper isometric view of the completed gimbal of the present invention.
FIG. 2 is a lower isometric view of the balance ring of the present invention after machining.
FIG. 3 is an overall isometric view of the stent of the present invention.
FIG. 4 is a diagram of the use of the process apparatus in processing the upper surface of the gimbal.
FIG. 5 is a diagram of the use of the process apparatus in processing the lower surface of the gimbal.
FIG. 6 is a diagram of the use of the process equipment in processing a portion of the process reserve for the inner and outer circles of the gimbal.
FIG. 7 is a diagram of the use of the process equipment in processing the remaining process reserve of the inner and outer circles of the gimbal.
Detailed Description
As shown in fig. 1, a process for machining a balance ring of a large-scale nuclear main pump shielding motor and a tool device thereof use a five-axis machining center and combine a special tool to respectively machine the upper surface and the lower surface of the balance ring, and the process comprises the following steps:
1) As shown in fig. 4, a balance ring milling blank 14 is placed on the lower support plate 13, fixed by using a screw 15, aligned with the outer circle and the upper surface, and establishes a program zero point;
2) Roughing the upper first 1, second 2 and fourth 4 upper surface areas using a blade disc cutter;
3) Roughing the upper third upper surface 3 area with a blade-type end mill;
4) Using a blade type ball end mill to perform rough machining on the residual part of the third upper surface 3 region;
5) Performing semi-finishing on the third upper surface 3 region by using a blade type ball-end milling cutter, ensuring that the included angles between the cutter and the two side surfaces are equal in the processing process, forming a 45-degree included angle with the axis of the bottom fillet, and completing cutting at a certain depth layer by layer from top to bottom in a layer-by-layer cutting mode;
6) Semi-finishing and finishing the first upper surface 1, the second upper surface 2 and the fourth surface 4 areas using an insert face milling cutter;
7) Still adopting the method of the step 5), encrypting cutter paths, reducing the step distance between each layer, and finely machining the third upper surface 3 region by using a blade type ball-end milling cutter;
8) Processing a square groove which is through up and down on the excircle process reserved part of the balance ring, using the square groove as a reference for turning over to determine the angle position of the balance ring, detaching a fixing screw 15, and preparing to turn over the balance ring;
9) After the balance ring 16 with the processed first surface is turned over, the balance ring 16 is placed on the upper supporting plate 11, and then the balance ring 16 is fixed by using a screw 15;
10 Rough machining the first, second and fourth lower surface 7, 8, 10 areas using an insert disc cutter;
11 Rough machining the third lower surface 9 area using an insert-type end mill;
12 Rough machining the remaining portion of the third lower surface 9 area using a blade type ball end mill;
13 Still using the method of 5), semi-finishing the third lower surface 9 area using a blade ball end mill;
14 Semi-finishing and finishing the second 8 and fourth 10 lower surface areas using a blade face mill, as shown in fig. 2;
15 Still adopting the method of 5), encrypting cutter paths, reducing the step distance between each layer, and carrying out finish machining on the region of the third lower surface 9 by using a blade type ball-end milling cutter;
16 Semi-finishing and finishing the cylindrical surface at the position of the first lower surface 7 by using a large-diameter large-fillet round nose milling cutter;
17 Finishing the processing of the areas of the inner hollow cutter grooves 5 and the outer hollow cutter grooves 6;
18 As shown in fig. 6), the set screws 15 are removed at intervals, and the inner and outer circles of the regions where the screws 15 are removed are processed;
19 As shown in fig. 7, the balance ring 16 is fixed to the bracket at the area where the screw 15 is removed by using a pressing plate 17, a bolt 18 and a nut 19, the remaining screw 15 is removed, and the remaining inner and outer circles are processed.
As shown in fig. 3, in a large-scale nuclear main pump shielding motor balance ring milling tooling device, two ends of a plurality of vertical plates 12 are respectively inserted into an upper supporting plate 11 and a lower supporting plate 13 to form a support body; the number of the vertical plates 12 is six, each vertical plate 12 is vertically arranged, and the vertical plates 12 are uniformly distributed along the outer edges of the upper supporting plate 11 and the lower supporting plate 13; the vertical plate 12 is connected with the upper supporting plate 11 and the lower supporting plate 13 together in a welding mode, so that the connection is stable, and the strength requirement of the whole tool device is ensured; as shown in fig. 5, the upper support plate 11 and the balance ring 16 have the same convex-concave structure, and the convex-concave surface formed after the first surface of the balance ring 16 is processed is matched with the convex-concave surface of the upper support plate 11, so as to provide good support.
Claims (1)
1. A milling processing technology for a balance ring of a large nuclear main pump shielding motor is characterized by comprising the following steps: the five-axis machining center is used, a special tool is combined, the upper surface and the lower surface of the balance ring are respectively machined, and the five-axis machining center comprises the following steps:
1) Placing a balance ring milling blank (14) on a lower supporting plate (13), fixing the balance ring milling blank by using a screw (15), aligning an outer circle and an upper surface, and establishing a program zero point;
2) Roughing the upper first (1), second (2) and fourth (4) upper surface areas using a blade disc cutter;
3) Roughing the upper third upper surface (3) area with a blade end mill;
4) Using a blade type ball end mill to roughly machine the residual part of the third upper surface (3) area;
5) Performing semi-finishing on the third upper surface (3) area by using a blade type ball-end milling cutter, ensuring that included angles between the cutter and two side surfaces are equal in the machining process, forming a 45-degree included angle with the axis of a bottom fillet, and completing cutting at a certain depth layer by layer from top to bottom in a layer-by-layer cutting mode;
6) Semi-finishing and finishing the first (1), second (2) and fourth (4) upper surface areas using an insert face milling cutter;
7) Still adopting the method in the step 5), encrypting cutter paths, reducing the step distance between every two layers, and finely machining the area of the third upper surface (3) by using a blade type ball-end milling cutter;
8) Processing a square groove which is through up and down on the excircle process reserved part of the balance ring, using the square groove as a reference for turning over to determine the angle position of the balance ring, detaching a fixing screw (15), and preparing to turn over the balance ring;
9) After the balance ring (16) with the processed first surface is turned over, the balance ring is placed on the upper supporting plate (11), and then the balance ring (16) is fixed by using a screw (15);
10 Roughing the first (7), second (8) and fourth (10) lower surface areas using an insert disc cutter;
11 Rough machining the third lower surface (9) area using an insert end mill;
12 Rough machining the remaining part of the third lower surface (9) area using a blade type ball end mill;
13 Still using the method of 5), semi-finishing the region of the third lower surface (9) using a blade ball end mill;
14 Semi-finishing and finishing the second (8) and fourth (10) lower surface areas using a blade face milling cutter;
15 Still adopting the method of 5), encrypting cutter paths, reducing the step distance between each layer, and carrying out finish machining on the region of the third lower surface (9) by using a blade type ball-end milling cutter;
16 Semi-finishing and finishing the cylindrical surface at the position of the first lower surface (7) by using a large-diameter large-fillet round nose milling cutter;
17 Finishing the processing of the areas of the inner hollow cutter groove (5) and the outer hollow cutter groove (6);
18 Removing the fixing screws (15) at intervals, and processing the inner and outer circles of the regions where the fixing screws (15) are removed;
19 Securing a gimbal ring (16) to the frame in the region where the screws (15) are removed by means of a pressure plate (17), bolts (18) and nuts (19), removing the remaining screws (15) and machining the remaining inner and outer circles; two ends of a plurality of vertical plates (12) are respectively inserted on the upper supporting plate (11) and the lower supporting plate (13) to form a bracket body; six vertical plates (12) are arranged, each vertical plate (12) is arranged vertically, and the vertical plates (12) are uniformly distributed along the outer edges of the upper supporting plate (11) and the lower supporting plate (13); the vertical plate (12) is connected with the upper supporting plate (11) and the lower supporting plate (13) together in a welding mode, the connection is stable, the strength requirement of the whole tool device is guaranteed, the upper supporting plate (11) and the balance ring (16) have the same convex-concave structure, and the convex-concave surface formed after the first surface is machined by the upper supporting plate (11) and the balance ring (16) is matched, so that good support is provided.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710252134.6A CN107097044B (en) | 2017-04-18 | 2017-04-18 | Machining process and tool device for large nuclear main pump shielding motor balance ring |
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| CN201710252134.6A CN107097044B (en) | 2017-04-18 | 2017-04-18 | Machining process and tool device for large nuclear main pump shielding motor balance ring |
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| CN107097044B true CN107097044B (en) | 2023-03-31 |
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| CN112388257B (en) * | 2020-11-10 | 2022-04-12 | 哈尔滨电气动力装备有限公司 | Shielded motor guide bearing bush supporting block processing technology |
| CN113070649A (en) * | 2021-05-17 | 2021-07-06 | 哈尔滨汽轮机厂有限责任公司 | Method for processing air inlet fairing of heavy gas turbine compressor |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB655207A (en) * | 1948-07-09 | 1951-07-11 | Thompson Prod Inc | Method and apparatus for generating vane surfaces |
| CN101579759A (en) * | 2009-06-18 | 2009-11-18 | 宁波远达船机配件有限公司 | Method for processing three-row sprocket tooth form of marine engine |
| CN102581359A (en) * | 2012-03-22 | 2012-07-18 | 沈阳飞机工业（集团）有限公司 | Deformation controlling method for machining double-side multi-rib structural part |
| CN102661744A (en) * | 2012-05-31 | 2012-09-12 | 东南大学 | Silica-based double-gimbal dynamical tuned gyroscope rotor body structure and processing method thereof |
| CN103464817A (en) * | 2013-09-17 | 2013-12-25 | 中北大学 | Device for cutting and machining arc-shaped square hole and method for machining arc-shaped square hole |
| CN103639655A (en) * | 2013-11-28 | 2014-03-19 | 江西洪都航空工业集团有限责任公司 | Manufacturing process for high-curvature full-profile thin-wall part |
| CN203522424U (en) * | 2013-10-16 | 2014-04-02 | 安徽精瑞新能源设备有限公司 | Balance ring of motor |
| CN104097033A (en) * | 2014-06-30 | 2014-10-15 | 什邡市明日宇航工业股份有限公司 | Manufacturing process for integral irregular welding box section of advanced training machine |
| CN105382313A (en) * | 2015-12-25 | 2016-03-09 | 西安航天动力机械厂 | Machining method for numerical control milling of thin-wall curved-surface irregular parts |
| CN106425322A (en) * | 2016-11-28 | 2017-02-22 | 马鞍山方圆精密机械有限公司 | Machining method for concave balls and convex balls |
-
2017
- 2017-04-18 CN CN201710252134.6A patent/CN107097044B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB655207A (en) * | 1948-07-09 | 1951-07-11 | Thompson Prod Inc | Method and apparatus for generating vane surfaces |
| CN101579759A (en) * | 2009-06-18 | 2009-11-18 | 宁波远达船机配件有限公司 | Method for processing three-row sprocket tooth form of marine engine |
| CN102581359A (en) * | 2012-03-22 | 2012-07-18 | 沈阳飞机工业（集团）有限公司 | Deformation controlling method for machining double-side multi-rib structural part |
| CN102661744A (en) * | 2012-05-31 | 2012-09-12 | 东南大学 | Silica-based double-gimbal dynamical tuned gyroscope rotor body structure and processing method thereof |
| CN103464817A (en) * | 2013-09-17 | 2013-12-25 | 中北大学 | Device for cutting and machining arc-shaped square hole and method for machining arc-shaped square hole |
| CN203522424U (en) * | 2013-10-16 | 2014-04-02 | 安徽精瑞新能源设备有限公司 | Balance ring of motor |
| CN103639655A (en) * | 2013-11-28 | 2014-03-19 | 江西洪都航空工业集团有限责任公司 | Manufacturing process for high-curvature full-profile thin-wall part |
| CN104097033A (en) * | 2014-06-30 | 2014-10-15 | 什邡市明日宇航工业股份有限公司 | Manufacturing process for integral irregular welding box section of advanced training machine |
| CN105382313A (en) * | 2015-12-25 | 2016-03-09 | 西安航天动力机械厂 | Machining method for numerical control milling of thin-wall curved-surface irregular parts |
| CN106425322A (en) * | 2016-11-28 | 2017-02-22 | 马鞍山方圆精密机械有限公司 | Machining method for concave balls and convex balls |
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| CN107097044A (en) | 2017-08-29 |
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