CN104889689A - Technological method for machining ultra-large length-width ratio magnetic pole reinforcing key of hydroelectric generating set - Google Patents
Technological method for machining ultra-large length-width ratio magnetic pole reinforcing key of hydroelectric generating set Download PDFInfo
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- CN104889689A CN104889689A CN201510282369.0A CN201510282369A CN104889689A CN 104889689 A CN104889689 A CN 104889689A CN 201510282369 A CN201510282369 A CN 201510282369A CN 104889689 A CN104889689 A CN 104889689A
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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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Abstract
The invention discloses a technological method for machining an ultra-large length-width ratio magnetic pole reinforcing key of a hydroelectric generating set. Special models and special machining methods are adopted in the technological method, and all portions, in particular to a bevel, of the ultra-large length-width ratio magnetic pole reinforcing key of the hydroelectric generating set are machined on a numerical control machine tool. According to the technological method, machining of the bevel is converted into planar machining, and clamping, alignment and machining are all completed on the special models. The technological method has the advantages of being novel, reasonable and simple in technology, high in machining precision, low in production cost and the like.
Description
Technical field
The magnetic pole that the invention discloses a kind of Hydropower Unit super large length-width ratio adds the process of strong bond.
Background technology
Water-wheel generator magnetic pole adds the important composition parts that strong bond is unit, and its maximum manufacture difficult point is that parts length-width ratio is large, and usually more than 1:50, and there is position, inclined-plane, this position slope is more than or equal to 1:100 usually, and clamping, centering, difficulty of processing are very big.In the past, traditional processing mode adopts common planer to process each plane, then adopt lathe angle of inclination to process the inclined-plane coordinating location, and working (machining) efficiency is low, and the accuracy of manufacture can not meet high quality of fit requirement.
Summary of the invention
1, the object of this invention is to provide a kind of rational technology, succinct, machining accuracy is high, the magnetic pole of the process water group of motors super large length-width ratio of low production cost adds the process of strong bond.Technical scheme of the present invention is: a kind of magnetic pole of process water group of motors super large length-width ratio adds the process of strong bond, it is characterized in that:
1) after whole workpiece blanking, workpiece is annealed, alignment process, process qualified after carry out machining;
2) process qualified after workpiece be placed on Special mould, uniformly arrange, certain locus is left in centre, workpiece C-type clamp is flattened, and fixing, being spaced in intervals with holding out against screw, is welded on mold by workpiece point;
3) workpiece and mold are linked together be put on CNC milling machine platform, mold is fastened solid on platform, rough mill plane and surrounding plane, all stay allowance;
4) workpiece qualified for roughing is lifted by crane lower platen together with mold one, solder joint mill is opened, workpiece and mold are cleaned out;
5) be put on lathe by workpiece, unprocessed plane is upwards placed, and is flattened by workpiece with pressing plate, interval pressure workpiece, the flat workpiece of milling, repeatedly fall pressing plate;
6) fine finishining lower planes, by welding positioner;
7) installed to by workpiece in special fraise jig, there is the plane of certain slope in processing, is put into by workpiece on mold, detected the gap of workpiece and mold by measurement clearance hole, qualified within 0.05mm, by Workpiece clamping after qualified;
8) Digit Control Machine Tool processing plane;
9) workpiece is assembled on Special mould, is detected the gap of workpiece and mold by measurement clearance hole, qualified within 0.05mm, by Workpiece clamping after qualified;
10) gap of repetition measurement workpiece and mold again, after meeting the requirements, by plane centering workpiece on mold, deviation within 0.05mm, the chamfer plane of qualified rear first roughing 60 °, and then the chamfer plane of fine finishining 60 °;
11) processing of 60 ° of chamfer plane qualified after, by numerical control program roughing 45 ° of chamfer plane, and then fine finishining 45 ° of chamfer plane, all meet drawing technical requirement;
12) workpiece complete liquidation is clean, adds strong bond and is assembled together, measure each portion size, and use model inspection, all meet a pair technical requirement and namely complete whole technique.
Need equipment be used:
● Special mould
● wrist power spanner
● hold out against screw (holding out against nut)
● C-type clamp
Technique effect: the present invention is different from the technical characterstic following points of traditional diamond-making technique:
The Special mould that the present invention adopts comprises pedestal, fastening screw, C-type clamp etc., pedestal centering section processes certain inclined-plane in advance, again by workpiece and pedestal centering section closely sturdy, fix with C-type clamp and fastening screw, the magnetic pole solving super large length-width ratio like this adds the problem of the centering of strong bond, processing, save repeatedly the problem of centering, save production cycle and cost; Novelty of the present invention by inclined-plane centering, become plane centering, reduce the difficulty of centering.
To sum up:
1) apparatus and method provided by the invention only need change the slope of pedestal centering section, and the magnetic pole with regard to going for all Hydropower Unit super large length-width ratios adds the processing of strong bond, easy and simple to handle, highly versatile.
2) the present invention adopts Special mould inclined-plane to coordinate C-type clamp and fastening screw, decrease that magnetic pole adds that strong bond adjusts repeatedly, centering, processing cycle, shorten the production cycle, save great amount of cost.
3) magnetic pole that the present invention is applicable to super large length-width ratio especially adds the processing of strong bond, but communicates due to principle, also can be applied to other super large length-width ratio work pieces process.
Accompanying drawing explanation
Fig. 1 is the sectional view of Special mould of the present invention
Fig. 2 is the top view of Special mould of the present invention
Detailed description of the invention
1) after whole workpiece blanking, workpiece is annealed, alignment process, process qualified after carry out machining;
2) as shown in Figure 1, the workpiece after qualified for process is placed on uniform in Special mould pedestal centering section 1 arranging, and certain locus is left in centre, workpiece C-type clamp 2 is flattened, hold out against screw 3, second with first to hold out against screw 4 and fix, be spaced in intervals, workpiece point is welded on mold;
3) as shown in Figure 2, workpiece and mold are linked together and is put on CNC milling machine platform, mold is fastened solid on platform, rough mill plane and surrounding plane, all stay allowance;
4) workpiece qualified for roughing is lifted by crane lower platen together with mold one, solder joint mill is opened, workpiece and mold are cleaned out;
5) be put on lathe by workpiece, unprocessed plane is upwards placed, and is flattened by workpiece with pressing plate, interval pressure workpiece, the flat workpiece of milling, repeatedly fall pressing plate;
6) fine finishining lower planes, by welding positioner;
7) installed to by workpiece in special fraise jig, in the middle of processing, the slope plane of 1:100, is put into workpiece on mold, is detected the gap of workpiece and mold by measurement clearance hole, qualified within 0.05mm, by Workpiece clamping after qualified;
8) Digit Control Machine Tool processing plane;
9) workpiece is assembled on Special mould, is detected the gap of workpiece and mold by measurement clearance hole, qualified within 0.05mm, by Workpiece clamping after qualified;
10) gap of repetition measurement workpiece and mold again, after meeting the requirements, by plane centering workpiece on mold, deviation within 0.05mm, the chamfer plane of qualified rear first roughing 60 °, and then the chamfer plane of fine finishining 60 °;
11) processing of 60 ° of chamfer plane qualified after, by numerical control program roughing 45 ° of chamfer plane, and then fine finishining 45 ° of chamfer plane, all meet drawing technical requirement;
12) workpiece complete liquidation is clean, adds strong bond and is assembled together, measure each portion size, and use model inspection, all meet a pair technical requirement and namely complete whole technique.
Claims (1)
1. the magnetic pole of process water group of motors super large length-width ratio adds a process for strong bond, it is characterized in that:
1) after whole workpiece blanking, workpiece is annealed, alignment process, process qualified after carry out machining;
2) process qualified after workpiece be placed on Special mould, uniformly arrange, certain locus is left in centre, workpiece C-type clamp is flattened, and fixing, being spaced in intervals with holding out against screw, is welded on mold by workpiece point;
3) workpiece and mold are linked together be put on CNC milling machine platform, mold is fastened solid on platform, rough mill plane and surrounding plane, all stay allowance;
4) workpiece qualified for roughing is lifted by crane lower platen together with mold one, solder joint mill is opened, workpiece and mold are cleaned out;
5) be put on lathe by workpiece, unprocessed plane is upwards placed, and is flattened by workpiece with pressing plate, interval pressure workpiece, the flat workpiece of milling, repeatedly fall pressing plate;
6) fine finishining lower planes, by welding positioner;
7) installed to by workpiece in special fraise jig, there is the plane of certain slope in processing, is put into by workpiece on mold, detected the gap of workpiece and mold by measurement clearance hole, qualified within 0.05mm, by Workpiece clamping after qualified;
8) Digit Control Machine Tool processing plane;
9) workpiece is assembled on Special mould, is detected the gap of workpiece and mold by measurement clearance hole, qualified within 0.05mm, by Workpiece clamping after qualified;
10) gap of repetition measurement workpiece and mold again, after meeting the requirements, by plane centering workpiece on mold, deviation within 0.05mm, the chamfer plane of qualified rear first roughing 60 °, and then the chamfer plane of fine finishining 60 °;
11) processing of 60 ° of chamfer plane qualified after, by numerical control program roughing 45 ° of chamfer plane, and then fine finishining 45 ° of chamfer plane, all meet drawing technical requirement;
12) workpiece complete liquidation is clean, adds strong bond and is assembled together, measure each portion size, and use model inspection, all meet a pair technical requirement and namely complete whole technique.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510282369.0A CN104889689A (en) | 2015-05-28 | 2015-05-28 | Technological method for machining ultra-large length-width ratio magnetic pole reinforcing key of hydroelectric generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510282369.0A CN104889689A (en) | 2015-05-28 | 2015-05-28 | Technological method for machining ultra-large length-width ratio magnetic pole reinforcing key of hydroelectric generating set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104889689A true CN104889689A (en) | 2015-09-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510282369.0A Pending CN104889689A (en) | 2015-05-28 | 2015-05-28 | Technological method for machining ultra-large length-width ratio magnetic pole reinforcing key of hydroelectric generating set |
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| Country | Link |
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| CN (1) | CN104889689A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11226807A (en) * | 1998-02-13 | 1999-08-24 | Howa Mach Ltd | Chuck, jaw and wedge plunger for operating jaw |
| CN101093950A (en) * | 2007-07-24 | 2007-12-26 | 天津市天发重型水电设备制造有限公司 | Technique for assembling magnet yoke of rotor in large and medium size mixed flow, axial flow hydroelectric machine |
| CN203747533U (en) * | 2013-12-31 | 2014-07-30 | 重庆水轮机厂有限责任公司 | Hydro-generator magnetic yoke combination key structure |
| CN103978344A (en) * | 2014-05-08 | 2014-08-13 | 哈尔滨电机厂有限责任公司 | Technology method for processing magnetic yoke key groove of generator rotor in construction site |
-
2015
- 2015-05-28 CN CN201510282369.0A patent/CN104889689A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11226807A (en) * | 1998-02-13 | 1999-08-24 | Howa Mach Ltd | Chuck, jaw and wedge plunger for operating jaw |
| CN101093950A (en) * | 2007-07-24 | 2007-12-26 | 天津市天发重型水电设备制造有限公司 | Technique for assembling magnet yoke of rotor in large and medium size mixed flow, axial flow hydroelectric machine |
| CN203747533U (en) * | 2013-12-31 | 2014-07-30 | 重庆水轮机厂有限责任公司 | Hydro-generator magnetic yoke combination key structure |
| CN103978344A (en) * | 2014-05-08 | 2014-08-13 | 哈尔滨电机厂有限责任公司 | Technology method for processing magnetic yoke key groove of generator rotor in construction site |
Non-Patent Citations (1)
| Title |
|---|
| 董国立: "天生桥Ⅱ级电站水轮发电机关键部件制造工艺", 《大电机技术》 * |
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Application publication date: 20150909 |
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| WD01 | Invention patent application deemed withdrawn after publication |