CN103157824A - Machining method for long and thin blind holes in 100 kW high-voltage nuclear turbine cylinder body - Google Patents
Machining method for long and thin blind holes in 100 kW high-voltage nuclear turbine cylinder body Download PDFInfo
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- CN103157824A CN103157824A CN2011104248553A CN201110424855A CN103157824A CN 103157824 A CN103157824 A CN 103157824A CN 2011104248553 A CN2011104248553 A CN 2011104248553A CN 201110424855 A CN201110424855 A CN 201110424855A CN 103157824 A CN103157824 A CN 103157824A
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Abstract
The invention discloses a machining method for long and thin blind holes in a 100 kW high-voltage nuclear turbine cylinder body. A locating control tool is used. A straight hole is machined in the cylinder body, the included angle between the straight hole and a horizontal plane is 20 degrees, and the included angle between the straight hole and a vertical face is 0 degree. A space angle hole is machined in the cylinder body, the included angle between the space angle hole and the horizontal plane is 20 degrees, and the included angle between the space angle hole and the vertical face is 5 degrees. The method comprises the steps that the tool is located; first time clamping locating of the tool is carried out; the straight hole is drilled through a boring rod; a working bench rotates 5 degrees relative to a rotating center of the working bench in a horizontal plane, the space angle hole is drilled; second time clamping locating of the tool is carried out; and a straight hole and a space angle hole which are symmetrical with the straight hole and the space angle hole are drilled. The centers of the rotating working bench, the tool and a workpiece coincide, and through whole rotation when the method is used on a boring mill, position accuracy of each long and thin blind hole can be guaranteed.
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 respectively the space angle hole (having eight elongated blind holes on whole cylinder body) of straight hole and two Φ 200 of two Φ 150, wherein the straight hole of Φ 150 and the angle between horizontal plane are 20 °, and the angle between vertical plane is 0 °; Space angle hole and the angle between horizontal plane of Φ 200 are 20 °, and the angle between vertical plane is 5 °.
Due to the ratio of the length of these eight the elongated blind holes on cylinder body and diameter large (being respectively Φ 200 * 1512, Φ 200 * 1327, Φ 150 * 1512, Φ 150 * 1327), all greater than 6 times, and each elongated blind hole all has certain space angle, therefore the processing of elongated blind hole has difficulties, and can't guarantee 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 the processing difficult problem of the elongated blind hole with space angle.
For solving the problems of the technologies described above, on 100 kilowatts of high pressure nuclear steam turbine cylinder bodies of the present invention, the technical solution of the processing method of elongated blind hole is:
Adopt the positioning control frock, process on cylinder body and horizontal plane between angle be 20 °, simultaneously and the angle between vertical plane be the straight hole of 0 °, and and horizontal plane between angle be 20 °, simultaneously and the angle between vertical plane be the space angle hole of 5 °, comprise the following steps:
The first step, the location of frock;
The positioning control frock is positioned on rotary table, and the center of frock is overlapped with the centre of gyration of rotary table, make simultaneously the central axis of boring bar pass the centre bore of frock;
Second step, the location of clamping for the first time 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;
The 3rd step is by boring bar drilling straight hole;
In the 4th step, make rotary table rotate 5 ° with respect to its centre of gyration in horizontal plane, drilling space angle hole;
The 5th step, the location of clamping for the second time of workpiece;
With changing of workpieces to, according to the method for clamping for the first time location, the centre of gyration of rotary table, the center of frock and the centre of gyration of workpiece are intersected at a point;
In the 6th step, complete the drilling in the symmetrical straight hole in the space angle hole that processes with the 3rd straight hole processed of step and the 4th step 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; The center of gravity place that is positioned at base on the inclined-plane is provided with centre bore; Become 20 ° of angles between the bottom surface of inclined-plane and base.
The technique effect that the present invention can reach is:
The present invention utilizes the centre of gyration of rotary table, the center of frock and the centre of gyration of workpiece to overlap, and turns round by integral body when using on boring machine, can guarantee the positional precision of each elongated blind hole.
The present invention can solve the processing difficult problem of elongated blind hole on 100 kilowatts of high pressure nuclear steam turbine cylinder bodies, can process and horizontal plane between angle be 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 can complete straight hole, the space angle drilling processing of eight, hole with elongated blind hole of space angle smoothly by twice lifting, clamping.
Description of drawings
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments:
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 used of the processing method of elongated blind hole on 100 kilowatts of high pressure nuclear steam turbine cylinder bodies of the present invention;
Fig. 5 is that clamping of the present invention is located schematic diagram.
Description of reference numerals in figure:
1 is base, and 2 is the inclined-plane,
3 is locating piece, and centered by 4 the hole,
10 is workpiece, and 20 is boring bar,
21 is rotary table.
The specific embodiment
The processing method of elongated blind hole on 100 kilowatts of high pressure nuclear steam turbine cylinder bodies of the present invention, adopt positioning control frock as shown in Figure 4, can process on cylinder body and horizontal plane between angle be 20 °, simultaneously and the angle between vertical plane be the straight hole of 0 °, and and horizontal plane between angle be 20 °, simultaneously and the angle between vertical plane be the space angle hole of 5 °;
The 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; The center of gravity place that is positioned at base 1 on inclined-plane 2 is provided with centre bore 4 (centre bore 4 is the center of positioning control frock);
Become 20 ° of angles between the bottom surface of inclined-plane 2 and base 1;
Processing method of the present invention comprises the following steps:
The first step, the location of frock;
The 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 simultaneously the central axis of boring bar 20 pass the centre bore 4 of frock, as shown in Figure 5;
Second step, the location of clamping for the first time of workpiece;
The 3rd step, move boring bar 20 by coordinate system, make the aligned in position of the central axis of boring bar 20 and Φ 150 straight holes on workpiece 10, by the straight hole of boring bar 20 drilling Φ 150;
In the 4th step, make rotary table 21 rotate 5 ° with respect to its centre of gyration in horizontal plane; Again move boring bar 20 by coordinate system, make the aligned in position in the central axis of boring bar 20 and the Φ on workpiece 10 200 space angle holes, the space angle hole of drilling Φ 200;
The 5th step, the location of clamping for the second time of workpiece;
With changing of workpieces to, according to the method for clamping for the first time location, the centre of gyration of rotary table 21, the center of frock and the centre of gyration of workpiece 10 are intersected at a point;
In the 6th step, complete the drilling in the symmetrical straight hole in the Φ 200 space angle holes that process with the 3rd Φ 150 straight holes processed of step and the 4th step and space angle hole.
Claims (2)
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 the positioning control frock, process on cylinder body and horizontal plane between angle be 20 °, simultaneously and the angle between vertical plane be the straight hole of 0 °, and and horizontal plane between angle be 20 °, simultaneously and the angle between vertical plane be the space angle hole of 5 °, comprise the following steps:
The first step, the location of frock;
The positioning control frock is positioned on rotary table, and the center of frock is overlapped with the centre of gyration of rotary table, make simultaneously the central axis of boring bar pass the centre bore of frock;
Second step, the location of clamping for the first time 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;
The 3rd step is by boring bar drilling straight hole;
In the 4th step, make rotary table rotate 5 ° with respect to its centre of gyration in horizontal plane, drilling space angle hole;
The 5th step, the location of clamping for the second time of workpiece;
With changing of workpieces to, according to the method for clamping for the first time location, the centre of gyration of rotary table, the center of frock and the centre of gyration of workpiece are intersected at a point;
In the 6th step, complete the drilling in the symmetrical straight hole in the space angle hole that processes with the 3rd straight hole processed of step and the 4th step and space angle hole.
2. the processing method of elongated blind hole on 100 kilowatts of high pressure nuclear steam turbine cylinder bodies according to claim 1, it is characterized in that: described positioning control frock comprises base, and base has an inclined-plane, and the bottom on inclined-plane is provided with a positioning block; The center of gravity place that is positioned at base on the inclined-plane is provided with centre bore; Become 20 ° of angles between the bottom surface of inclined-plane and base.
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 true CN103157824A (en) | 2013-06-19 |
| CN103157824B 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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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105499628A (en) * | 2016-01-19 | 2016-04-20 | 哈尔滨汽轮机厂有限责任公司 | Machining method of drill plate radiant ray pin 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 |
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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 |
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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 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105499628A (en) * | 2016-01-19 | 2016-04-20 | 哈尔滨汽轮机厂有限责任公司 | Machining method of drill plate radiant ray pin hole |
| 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 |
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| CN103157824B (en) | 2015-08-19 |
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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. |