CN103157824B - The processing method of elongated blind hole on 100 kilowatts of high pressure nuclear steam turbine cylinder bodies - Google Patents
The processing method of elongated blind hole on 100 kilowatts of high pressure nuclear steam turbine cylinder bodies Download PDFInfo
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- CN103157824B CN103157824B CN201110424855.3A CN201110424855A CN103157824B CN 103157824 B CN103157824 B CN 103157824B CN 201110424855 A CN201110424855 A CN 201110424855A CN 103157824 B CN103157824 B CN 103157824B
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Abstract
The invention discloses the processing method of elongated blind hole on a kind of 100 kilowatts of high pressure nuclear steam turbine cylinder bodies, adopt positioning control frock, angle cylinder body processed between horizontal plane to be the angle between 20 ° and vertical plane the be straight hole of 0 °, and and horizontal plane between angle to be angle between 20 ° and vertical plane the be space angle hole of 5 °, comprise the following steps: the first step, the location of frock; Second step, the first time Set and Positioning of workpiece; 3rd step, by boring bar drilling straight hole; 4th step, makes rotary table in horizontal plane, rotate 5 ° relative to its centre of gyration, drilling space angle hole; 5th step, the second time Set and Positioning of workpiece; 6th step, completes the drilling with the symmetrical straight hole of aforementioned straight hole and space angle hole and space angle hole.The present invention utilizes the center superposition of rotary table, frock and workpiece, passes through overall revolution, can ensure the positional precision of each elongated blind hole when boring machine uses.
Description
Technical field
The present invention relates to a kind of machining process of nuclear power generating equipment, be specifically related to the processing method of elongated blind hole on a kind of 100 kilowatts of high pressure nuclear steam turbine cylinder bodies.
Background technology
The structure of 100 kilowatts of high pressure nuclear steam turbine cylinder bodies as shown in Figure 1 to Figure 3, the appearance and size of cylinder body is 6000 × 5110 × 4960, the two bottom sides of cylinder body has the space angle hole of the straight hole of two Φ 150 and two Φ 200 (whole cylinder body having eight elongated blind holes) respectively, angle wherein between the straight hole of Φ 150 and horizontal plane is 20 °, and the angle between vertical plane is 0 °; Angle between the space angle hole of Φ 200 and horizontal plane is 20 °, and the angle between vertical plane is 5 °.
Due to the length of eight the elongated blind holes of this on cylinder body and the ratio comparatively large (being respectively Φ 200 × 1512, Φ 200 × 1327, Φ 150 × 1512, Φ 150 × 1327) of diameter, all be greater than 6 times, and each elongated blind hole all has certain space angle, therefore the processing of elongated blind hole has difficulties, and cannot ensure its machining accuracy.
Summary of the invention
Technical problem to be solved by this invention is to provide the processing method of elongated blind hole on a kind of 100 kilowatts of high pressure nuclear steam turbine cylinder bodies, and it can solve a processing difficult problem for the elongated blind hole with space angle.
For solving the problems of the technologies described above, on the present invention's 100 kilowatts of high pressure nuclear steam turbine cylinder bodies, the technical solution of the processing method of elongated blind hole is:
Adopt positioning control frock, the straight hole that angle cylinder body processed between horizontal plane is 20 °, angle simultaneously and between vertical plane is 0 °, and and horizontal plane between angle be 20 °, angle simultaneously and between vertical plane is the space angle hole of 5 °, comprise the following steps:
The first step, the location of frock;
Positioning control frock is positioned on rotary table, and the center of frock is overlapped with the centre of gyration of rotary table, make the centre bore of central axis through frock of boring bar simultaneously;
Second step, the first time Set and Positioning of workpiece;
Workpiece is positioned on the inclined-plane of positioning control frock, and makes the centre of gyration of workpiece and the center superposition of positioning control frock;
3rd step, by boring bar drilling straight hole;
4th step, makes rotary table in horizontal plane, rotate 5 ° relative to its centre of gyration, drilling space angle hole;
5th step, the second time Set and Positioning of workpiece;
By changing of workpieces to, according to first time Set and Positioning method makes the centre of gyration of rotary table again, the centre of gyration of the center of frock and workpiece intersects at a point;
6th step, completes the drilling in the symmetrical straight hole in space angle hole that the straight hole processed with the 3rd step and the 4th step process and space angle hole.
Described positioning control frock comprises base, and base has an inclined-plane, and the bottom on inclined-plane is provided with a positioning block; Center of gravity place inclined-plane being positioned at base is provided with centre bore; 20 ° of angles are become between inclined-plane and the bottom surface of base.
The technique effect that the present invention can reach is:
The present invention utilizes the centre of gyration of rotary table, the centre of gyration of the center of frock and workpiece overlaps, and passes through overall revolution, can ensure the positional precision of each elongated blind hole when boring machine uses.
The present invention can solve a processing difficult problem for elongated blind hole on 100 kilowatts of high pressure nuclear steam turbine cylinder bodies, the angle that can process between horizontal plane is 20 °, and the angle between vertical plane is the straight hole of 0 °, and and horizontal plane between angle be 20 °, and the angle between vertical plane is the space angle hole of 5 °.
The present invention, by twice lifting, clamping, can complete straight hole, drilling that eight, space angle hole has the elongated blind hole of space angle processing smoothly.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation:
Fig. 1 is the structural representation of 100 kilowatts of high pressure nuclear steam turbine cylinder bodies;
Fig. 2 is the profile of A-A in Fig. 1;
Fig. 3 is the profile of B-B in Fig. 1;
Fig. 4 is the schematic diagram of the positioning control frock that the processing method of elongated blind hole on the present invention's 100 kilowatts of high pressure nuclear steam turbine cylinder bodies uses;
Fig. 5 is Set and Positioning schematic diagram of the present invention.
Description of reference numerals in figure:
1 is base, and 2 is inclined-plane,
3 is locating piece, and centered by 4 hole,
10 is workpiece, and 20 is boring bar,
21 is rotary table.
Detailed description of the invention
The processing method of elongated blind hole on the present invention's 100 kilowatts of high pressure nuclear steam turbine cylinder bodies, adopt positioning control frock as shown in Figure 4, the straight hole that the angle that can process on cylinder body between horizontal plane is 20 °, angle simultaneously and between vertical plane is 0 °, and and horizontal plane between angle be 20 °, angle simultaneously and between vertical plane is the space angle hole of 5 °;
Positioning control frock comprises base 1, and base 1 has an inclined-plane 2, and the bottom on inclined-plane 2 is provided with a positioning block 3; Center of gravity place inclined-plane 2 being positioned at base 1 is provided with centre bore 4 (centre bore 4 is the center of positioning control frock);
20 ° of angles are become between inclined-plane 2 and the bottom surface of base 1;
Processing method of the present invention comprises the following steps:
The first step, the location of frock;
Positioning control frock is positioned on rotary table 21, and the center of frock is overlapped with the centre of gyration of rotary table 21, make the centre bore 4 of central axis through frock of boring bar 20, as shown in Figure 5 simultaneously;
Second step, the first time Set and Positioning of workpiece;
Workpiece 10 is positioned on the inclined-plane 2 of positioning control frock, and makes the center superposition of the centre of gyration of workpiece 10 and positioning control frock (centre bore 4 of positioning control frock is passed at the center of workpiece 10); Now, the centre of gyration of the centre of gyration of rotary table 21, the center of frock and workpiece 10 intersects at a point;
3rd step, moves boring bar 20 by coordinate system, makes the aligned in position of Φ 150 straight hole on the central axis of boring bar 20 and workpiece 10, by the straight hole of boring bar 20 drilling Φ 150;
4th step, makes rotary table 21 in horizontal plane, rotate 5 ° relative to its centre of gyration; Again move boring bar 20 by coordinate system, make the aligned in position in the Φ 200 space angle hole on the central axis of boring bar 20 and workpiece 10, the space angle hole of drilling Φ 200;
5th step, the second time Set and Positioning of workpiece;
By changing of workpieces to, according to first time Set and Positioning method makes the centre of gyration of rotary table 21 again, the centre of gyration of the center of frock and workpiece 10 intersects at a point;
6th step, completes the drilling in the symmetrical straight hole in Φ 200 space angle hole that Φ 150 straight hole processed with the 3rd step and the 4th step process and space angle hole.
Claims (1)
1. the processing method of elongated blind hole on one kind 100 kilowatts high pressure nuclear steam turbine cylinder bodies, it is characterized in that: adopt positioning control frock, the straight hole that angle cylinder body processed between horizontal plane is 20 °, angle simultaneously and between vertical plane is 0 °, and and horizontal plane between angle be 20 °, angle simultaneously and between vertical plane is the space angle hole of 5 °, comprise the following steps:
The first step, the location of frock;
Positioning control frock is positioned on rotary table, and the center of frock is overlapped with the centre of gyration of rotary table, make the centre bore of central axis through frock of boring bar simultaneously;
Described positioning control frock comprises base, and base has an inclined-plane, and the bottom on inclined-plane is provided with a positioning block; Center of gravity place inclined-plane being positioned at base is provided with centre bore; 20 ° of angles are become between inclined-plane and the bottom surface of base;
Second step, the first time Set and Positioning of workpiece;
Workpiece is positioned on the inclined-plane of positioning control frock, and makes the centre of gyration of workpiece and the center superposition of positioning control frock;
3rd step, by boring bar drilling straight hole;
4th step, makes rotary table in horizontal plane, rotate 5 ° relative to its centre of gyration, drilling space angle hole;
5th step, the second time Set and Positioning of workpiece;
By changing of workpieces to, according to first time Set and Positioning method makes the centre of gyration of rotary table again, the centre of gyration of the center of frock and workpiece intersects at a point;
6th step, completes the drilling in the symmetrical straight hole in space angle hole that the straight hole processed with the 3rd step and the 4th step process and space angle hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110424855.3A CN103157824B (en) | 2011-12-16 | 2011-12-16 | The processing method of elongated blind hole on 100 kilowatts of high pressure nuclear steam turbine cylinder bodies |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110424855.3A CN103157824B (en) | 2011-12-16 | 2011-12-16 | The processing method of elongated blind hole on 100 kilowatts of high pressure nuclear steam turbine cylinder bodies |
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| Publication Number | Publication Date |
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| CN103157824A CN103157824A (en) | 2013-06-19 |
| CN103157824B true CN103157824B (en) | 2015-08-19 |
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| CN201110424855.3A Active CN103157824B (en) | 2011-12-16 | 2011-12-16 | The processing method of elongated blind hole on 100 kilowatts of high pressure nuclear steam turbine cylinder bodies |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105499628B (en) * | 2016-01-19 | 2017-08-15 | 哈尔滨汽轮机厂有限责任公司 | A kind of processing method of bushing plate radiation pin-and-hole |
| CN107470728A (en) * | 2017-07-03 | 2017-12-15 | 宝鸡石油机械有限责任公司 | The oblique dovetail groove wire cutting fixture of slip spider and processing method |
Citations (6)
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| SU660811A1 (en) * | 1977-04-04 | 1979-05-05 | Рязанский Филиал Центрального Опытноконструкторского И Технологического Бюро Госнити | Multiunit drilling machine |
| CN201058402Y (en) * | 2007-06-29 | 2008-05-14 | 天津市天发重型水电设备制造有限公司 | Locating gyration device |
| CN201357249Y (en) * | 2008-09-10 | 2009-12-09 | 潍坊潍柴零部件机械有限公司 | Inclined-hole jig |
| CN101791714A (en) * | 2010-04-09 | 2010-08-04 | 杭州众享机械技术有限公司 | Full-automatic drilling machine for steel back of friction plate |
| CN101927366A (en) * | 2009-06-27 | 2010-12-29 | 铜陵精恒机械有限责任公司 | Piston aluminum skirt universal arbitrary indexing inclined hole rotary drill jig |
| CN102248379A (en) * | 2011-07-01 | 2011-11-23 | 湖北三江航天江北机械工程有限公司 | Method for processing back-spraying hole in shell of rocket chamber by using conventional boring machine |
-
2011
- 2011-12-16 CN CN201110424855.3A patent/CN103157824B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU660811A1 (en) * | 1977-04-04 | 1979-05-05 | Рязанский Филиал Центрального Опытноконструкторского И Технологического Бюро Госнити | Multiunit drilling machine |
| CN201058402Y (en) * | 2007-06-29 | 2008-05-14 | 天津市天发重型水电设备制造有限公司 | Locating gyration device |
| CN201357249Y (en) * | 2008-09-10 | 2009-12-09 | 潍坊潍柴零部件机械有限公司 | Inclined-hole jig |
| CN101927366A (en) * | 2009-06-27 | 2010-12-29 | 铜陵精恒机械有限责任公司 | Piston aluminum skirt universal arbitrary indexing inclined hole rotary drill jig |
| CN101791714A (en) * | 2010-04-09 | 2010-08-04 | 杭州众享机械技术有限公司 | Full-automatic drilling machine for steel back of friction plate |
| CN102248379A (en) * | 2011-07-01 | 2011-11-23 | 湖北三江航天江北机械工程有限公司 | Method for processing back-spraying hole in shell of rocket chamber by using conventional boring machine |
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| CN103157824A (en) | 2013-06-19 |
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Effective date of registration: 20161130 Address after: 200245 Jiangchuan Road, Shanghai, No. 207, building 1800, No. Patentee after: Shanghai Electric Heavy Forging Co. Ltd. Patentee after: Shanghai Heavy Machines Plant Co., Ltd. Address before: 200245 Jiangchuan Road, Shanghai, No. 1800, No. Patentee before: Shanghai Heavy Machines Plant Co., Ltd. |