CN103551626A - Spacing block for machining deep hole of tube plate - Google Patents
Spacing block for machining deep hole of tube plate Download PDFInfo
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- CN103551626A CN103551626A CN201310528480.4A CN201310528480A CN103551626A CN 103551626 A CN103551626 A CN 103551626A CN 201310528480 A CN201310528480 A CN 201310528480A CN 103551626 A CN103551626 A CN 103551626A
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- spacing piece
- deep hole
- spacing
- working face
- rectangular block
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B41/00—Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor
- B23B41/02—Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor for boring deep holes; Trepanning, e.g. of gun or rifle barrels
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- Engineering & Computer Science (AREA)
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- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
The invention discloses a spacing block for machining a deep hole of a tube plate. The spacing block is arranged between two adjacent main shafts of a three-shaft numeric-control deep-hole drilling machine, and the three-shaft numeric-control deep-hole drilling machine is used for machining the deep hole in a tube plate of a vapor generator in the nuclear power industry. The three-shaft numeric-control deep hole drilling machine comprises three main shafts which are sequentially arranged from top to bottom, wherein each main shaft is horizontally arranged; the spacing block comprises a spacing block main body, wherein the top of the spacing block main body is an upper working surface, the bottom of the spacing block main body is a lower working surface, and the upper working surface is parallel to the lower working surface; for two adjacent main shafts, a first positioning surface of an upper main shaft is attached to the upper working surface of the spacing block, a second positioning surface of a lower main shaft is attached to the lower working surface of the spacing block, both the positioning surface and the spacing block are highly required on the precision, the distance among the three shafts can be guaranteed in the machining process of the tube plate, and the machining of the tube plate can be guaranteed.
Description
Technical field
The present invention relates to a kind of device of depth drill between centers spacing, particularly for processing the spacing piece of applying on the three-axis numerical control deep hole drilling machine of pipe sheet deep hole.
Background technology
Steam generator is one of nuclear power plant's nuclear island primary device, steam generator tube sheet is the highest, the large parts of manufacturing difficulty of processing maximum of specification requirement in nuclear power main equipment, and the quality of its crudy is determining the ruuning situation of steam generator and even whole nuclear power plant.Along with the progress of technology, the size of tube plate of nuclear power steam generator and weight are also towards the future development maximizing.The generation Ⅲ nuclear power technology AP1000 series tube sheet of take is example, the nearly 4m of primary side surface diameter, and pore number is 20050, tube sheet weight has reached tons up to a hundred; Meanwhile, the size of pore is also very strict, and the column pitch in hole is 21.557mm, and each hole is Ф 0.25mm to the position degree in tube sheet axle center, in large-area scope like this, require so many hole to guarantee so high precision, is obviously a very difficult thing.
Traditional single shaft deep hole processing equipment can guarantee pore diameter size, but still cannot stablize, effectively guarantee pore centre-to-centre spacing; Meanwhile, in the face of take the generation Ⅲ nuclear power technology evaporator pipe sheet that AP1000 series is representative, the feature that its working (machining) efficiency is low has been doomed again this type of process equipment and cannot have been met real needs.Under this background, these difficult problems of solution that appear as of three-axis numerical control deep hole drilling machine provide a possibility.Utilize the feature of three-shaft linkage, the precision of lathe self of take is basis, relies on procedure to guarantee the row (column) spacing in hole, and the row in hole (OK) spacing dimension depends on the distance between axles of three between centers.The distance between axles of three-axis numerical control deep hole drilling machine is adjustable, to adapt to the pitch of holes of different size.But pore distance theory dimensional accuracy has reached micron order, only rely on artificial adjustment, even be also difficult to guarantee that by means of accurate measuring instrument the distance of shaft centers between adjacent diaxon reaches target size and can be consistent.
Meanwhile, also there are the following problems in existing spacing piece field:
The first, in more existing three axle drilling machines, be seldom applied to spacing piece;
The second, exist between its three axles of some three axle drilling machines spacing adjustable, yet this class drilling machine is not applied to spacing piece yet.
Three, the three axle drilling machines to the processing of nuclear industry pipe sheet deep hole of existing some, as the patent of inventor's application, application number is CN201310241547.6, name is called AP1000 steam generator tube sheet group hole High Efficient Machining Technology method, three-axis numerical control deep hole drilling machine described in this patent can complete the processing to nuclear industry steam generator tube sheet deep hole, yet just simple application of spacing piece used in this class three-axis numerical control deep hole drilling machine, the research of also spacing piece not being deepened in this patent.
Existence due to the problems referred to above, the present invention carries out research and analysis to existing three-axis numerical control deep hole drilling machine and spacing piece, so as to produce have that intensity is high, the degree of accuracy is high, on the easy to use and three-axis numerical control deep hole drilling machine can large-scale application used to nuclear industry steam generator tube sheet deep hole machining.
Summary of the invention
In order to address the above problem, the inventor studies with keen determination, found that: the spacing piece that comprises spacing piece main body by setting, the top of described spacing piece main body is upper working face, the bottom of spacing piece main body is lower working face, and in adjacent main shaft, the first locating surface of upper working face and superposed the first rectangular block 3 is affixed, lower working face is affixed with the second locating surface that is positioned at the second rectangular block 4 of bottom, thereby completes the present invention.
The object of the present invention is to provide following aspect:
(1) a spacing piece use in processing, it is characterized in that: this spacing piece is arranged between main shaft adjacent on three-axis numerical control deep hole drilling machine 6, and three-axis numerical control deep hole drilling machine is used for processing the deep hole on the tube sheet of Nuclear Power Industry steam generator;
Wherein, described three-axis numerical control deep hole drilling machine is included in three main shafts parallel to each other 6 that set gradually on column from top to bottom, and described three main shafts 6 are all horizontally disposed with;
This spacing piece comprises spacing piece main body 5, the top of spacing piece main body 5 is upper working face 1, the bottom of spacing piece main body 5 is lower working face 2, wherein go up working face parallel with lower working face, and the depth of parallelism of upper working face and lower working face is 0.004, the surface roughness of upper working face and lower working face is 0.4;
Between adjacent main shaft 6, the bottom that is positioned at top main shaft is connected with the first rectangular block 3 by bolt, and the upper working face 1 of the lower surface of the first rectangular block 3 and spacing piece is affixed; Be connected with the second rectangular block 4 by the bolt upper surface of the second rectangular block 4 and the lower working face 2 of spacing piece of the top of main shaft that is positioned at below is affixed; Wherein, the center 3 o'clock of the center of the first rectangular block, spacing Kuai center and the second rectangular block is on a vertical straight line; Parallel to each other and the depth of parallelism of two planes of upper surface of the lower surface of the first rectangular block and the second rectangular block is 0.004, and surface roughness is 0.4.
(2) according to the pipe sheet deep hole processing above-mentioned (1) Suo Shu, use spacing piece, it is characterized in that: the material of described spacing piece is cold work die steel Cr12.
(3) according to the pipe sheet deep hole processing above-mentioned (1) Suo Shu, use spacing piece, it is characterized in that: described spacing piece case hardness is HRC60～65.
(4) according to the pipe sheet deep hole processing above-mentioned (1) Suo Shu, use spacing piece, it is characterized in that: the tolerance of the working size of this spacing piece is 0.01mm.
(5) according to the pipe sheet deep hole processing above-mentioned (1) Suo Shu, use spacing piece, it is characterized in that: the spacing between upper main shaft orientation face 3 and lower main axis locating surface 4 equals the working size of locating piece, i.e. locating piece thickness, and spacing dimension tolerance is 0.01mm.
(6) according to the pipe sheet deep hole processing above-mentioned (1) Suo Shu, use spacing piece, it is characterized in that: between adjacent two main shafts 6, settle 2 or 2 above spacing pieces, and all spacing piece working sizes between two main shafts 6 are identical.
(7) according to the pipe sheet deep hole processing spacing piece above-mentioned (1) Suo Shu, it is characterized in that: in spacing piece manufacturing procedure, final step operation is fine ginding, between two main shafts, the upper working face of all spacing pieces and the fine ginding operation of lower working face are carried out simultaneously, and all spacing pieces are placed side by side carries out fine ginding processing on grinding machine.
According to pipe sheet deep hole processing spacing piece provided by the invention, not only there is good intensity, hardness and wearability, and dimensionally stable, can ensure for long deep hole machining provides reliable location, efficiently solve the orientation problem of depth drill main shaft, it also has following beneficial effect simultaneously: in the pipe sheet deep hole process of the steam generator of Nuclear Power Industry, between adjacent two main shafts, arrange some spacing pieces in groups, rely on the high accuracy of spacing piece self, can not only guarantee that distance of shaft centers reaches pre-provisioning request, and can reduce to greatest extent the error brought due to manual operation, met the high request of tube sheet to pore pitch of holes, for the deep hole machining of tube sheet provides solid guarantee.
Accompanying drawing explanation
Fig. 1 illustrates the working state structure schematic diagram of spacing piece for the pipe sheet deep hole processing of a kind of preferred embodiment according to the present invention.
Fig. 2 illustrates the structural representation of spacing piece for the pipe sheet deep hole processing of a kind of preferred embodiment according to the present invention;
Drawing reference numeral explanation:
The upper working face of 1-
Working face under 2-
3-the first rectangular block
4-the second rectangular block
5-spacing piece main body
6-main shaft
The specific embodiment
Below in conjunction with accompanying drawing, the present invention is described in detail, and the features and advantages of the invention will become more clear, clear and definite along with these explanations.
Here special-purpose word " exemplary " means " as example, embodiment or illustrative ".Here as " exemplary " illustrated any embodiment, needn't be interpreted as being better than or being better than other embodiment.Although the various aspects of embodiment shown in the drawings, unless otherwise indicated, needn't draw accompanying drawing in proportion.
According to the present invention one preferred embodiment in, as shown in Fig. 1-2, a kind of pipe sheet deep hole processing spacing piece is provided, this spacing piece is arranged between main shaft adjacent on three-axis numerical control deep hole drilling machine 6, and three-axis numerical control deep hole drilling machine is for processing the deep hole on the tube sheet of Nuclear Power Industry steam generator;
Wherein, described three-axis numerical control deep hole drilling machine comprises three main shafts parallel to each other 6 that set gradually from top to bottom, and described three main shafts 6 are all horizontally disposed with;
This spacing piece comprises spacing piece main body 5, and the top of spacing piece main body 5 is upper working face 1, and the bottom of spacing piece main body 4 is lower working face 2, wherein goes up working face parallel with lower working face; And the depth of parallelism is 0.004, the surface roughness of upper working face and lower working face is 0.4.
Between adjacent main shaft 6, be useful on the first rectangular block 3 and the second rectangular block 4 that contact with spacing piece, the lower surface that is positioned at the first rectangular block 3 of top is the first locating surface, the upper surface that is positioned at the second rectangular block 4 of below is the second locating surface, wherein be positioned at the first locating surface above and the upper working face 1 of spacing piece and be affixed, be positioned at the second locating surface below and the lower working face 2 of spacing piece and be affixed.
The first rectangular block 3 and the second rectangular block 4 are fixed by bolts on main shaft, and the first locating surface and the second locating surface parallel to each other, the depth of parallelism is 0.004, surface roughness is 0.4.
One preferred embodiment in, as shown in fig. 1, described spacing piece comprises spacing piece main body 5, spacing piece main body 5 is solid cylinder, spacing main body 5 tops are upper working face 1, and spacing piece main body 5 bottoms are lower working face 2, and the sidewall of described spacing main body 5 there is no specific (special) requirements.And spacing main body also there is no specific (special) requirements, can be any cylinder, in the present invention, spacing piece main body 5 is preferably cuboid.
Wherein, the two is parallel for upper working face 1 and lower working face 2, like this can so that this spacing piece can be stable be placed between adjacent main shaft 6.
Particularly, the material of described spacing piece is cold work die steel Cr12, and the case hardness of spacing piece is HRC60～65, by this kind of setting, can increase intensity, hardness and the abrasion resistance of this spacing piece, also can avoid this spacing piece simultaneously and because of distortion, produce error.
One preferred embodiment in, as shown in fig. 1, between adjacent main shaft, be positioned at the first locating surface of the first rectangular block above and the upper working face 1 of spacing piece is affixed, be positioned at the second locating surface of the second rectangular block below and the lower working face 2 of spacing piece is affixed; It is between the first rectangular block and the second rectangular block that spacing piece is arranged between two adjacent main shafts, can be so that main shaft keeps fixing distance of shaft centers in boring procedure always, and then reduce to greatest extent the error brought due to manual operation, met the high request of tube sheet to pore pitch of holes, for the deep hole machining of tube sheet provides solid guarantee.
Wherein, spacing piece is clipped between first rectangular block and the second rectangular block of adjacent two main shafts, and without other auxiliary bodies, only the first rectangular block and the pressure between the second rectangular block by two adjacent main shafts gets final product constant spacing piece; For the spacing piece arranging in groups between the first rectangular block of adjacent main shaft and the second rectangular block, also without other auxiliary bodies, only by the first rectangular block and the pressure between the second rectangular block of two adjacent main shafts, can fix spacing piece in groups.
Wherein, the upper working face of spacing piece and the depth of parallelism of lower working face are 0.004; The surface roughness of upper working face and lower working face is 0.4, be arranged so that like this spacing the piece locating surface of rectangular block and working face of spacing piece on when work main shaft contact more abundant, prevent that salient point from appearring in contact-making surface, to guarantee positioning precision, be also a kind of protection to main shaft orientation face simultaneously; Roughness determines by manufacturing process, and the machined surface after fine grinding all can reach this requirement, and the roughness of spacing piece 0.4 is also kind of a protection to the locating surface of main shaft, prevents locating surface to cause wearing and tearing.
In a preferred embodiment, rectangular block and main shaft are not integrative-structure, can be fixed together in several ways, preferably select bolt to connect, and can select a plurality of bolts, to reach fully fixing object; For rectangular block is fixed on mainshaft mechanism, at the middle part of rectangular block, be provided with the screwed hole of depression, in the screwed hole of the complete precession depression of bolt, smooth to guarantee locating surface, without outstanding part, the locating surface of rectangular block is fully contacted with the working face of spacing piece; As shown in Figure 1, between the first locating surface of the first locating surface of upper the first rectangular block 3 and the second rectangular block 4, place spacing piece, the first locating surface and the second locating surface are parallel to each other, and the depth of parallelism is 0.004, the surface roughness of two locating surfaces is 0.4, the locating surface of spacing piece rectangular block on when work main shaft is contacted more abundant with spacing piece, prevents that salient point from appearring in contact-making surface, the depth of parallelism between main shaft and the precision of distance between axles have been guaranteed, for the deep hole machining of tube sheet provides solid guarantee.
Rectangular block described in the present invention is to be positioned at the first rectangular block on main shaft above or to be positioned at the second rectangular block on main shaft below, and described locating surface is the first locating surface of the first rectangular block or the second locating surface of the second rectangular block.
One preferred embodiment in, as shown in Figure 2, described working size is the size of H as shown in Figure 2 in the present invention, working size is determined jointly by the row (column) spacing in the hole of three-axis numerical control deep hole drilling machine feature and processed tube sheet, the size of described working size there is no specific (special) requirements, but the tolerance of working size is 0.01mm, by being arranged so that like this spacing piece is in position fixing process, more accurately, precision is high, error dropped to minimum.
The first locating surface of the first adjacent rectangular block is that thickness equates with the distance between the second locating surface of the second rectangular block with the spacing piece working size of placing between them, and spacing dimension tolerance is 0.01mm, by being arranged so that like this spacing piece is in position fixing process, more accurately, accurately, error is dropped to minimum.
One preferred embodiment in, three-axis numerical control deep hole drilling machine of the present invention is applied in nuclear industry steam generator tube sheet deep hole drilling work, described three-axis numerical control drilling machine comprises three main shafts, wherein, the afterbody of each main shaft is all arranged on the slide plate on column, three main shafts are all horizontally disposed with, and three main shafts are parallel to each other, and described spacing piece is arranged between adjacent main shaft; This kind setting can guarantee that between adjacent main shaft, distance of shaft centers reaches pre-provisioning request, and can reduce to greatest extent the error brought due to manual operation, has met the high request of tube sheet to pore pitch of holes, for the deep hole machining of tube sheet provides solid guarantee.
According to pipe sheet deep hole processing spacing piece provided by the invention, not only there is good intensity, hardness and wearability, and dimensionally stable, can ensure for long deep hole machining provides reliable location, efficiently solve the orientation problem of depth drill main shaft, it also has following beneficial effect simultaneously: in the pipe sheet deep hole process of the steam generator of Nuclear Power Industry, between adjacent two main shafts, arrange some spacing pieces in groups, rely on the high accuracy of spacing piece self, can not only guarantee that distance of shaft centers reaches pre-provisioning request, and can reduce to greatest extent the error brought due to manual operation, met the high request of tube sheet to pore pitch of holes, for the deep hole machining of tube sheet provides solid guarantee.
More than engage the specific embodiment and exemplary example has been described in detail the present invention, but these explanations can not be interpreted as limitation of the present invention.It will be appreciated by those skilled in the art that in the situation that not departing from spirit and scope of the invention, can carry out multiple replacement of equal value, modify or improve technical solution of the present invention and embodiment thereof, these all fall within the scope of the present invention.Protection scope of the present invention is as the criterion with claims.
Claims (7)
1. a spacing piece use in pipe sheet deep hole processing, it is characterized in that: this spacing piece is arranged between main shaft adjacent on three-axis numerical control deep hole drilling machine (6), and three-axis numerical control deep hole drilling machine is used for processing the deep hole on the tube sheet of Nuclear Power Industry steam generator;
Wherein, described three-axis numerical control deep hole drilling machine is included in three main shafts parallel to each other (6) that set gradually on column from top to bottom, and described three main shafts (6) are all horizontally disposed with;
This spacing piece comprises spacing piece main body (5), the top of spacing piece main body (5) is upper working face (1), the bottom of spacing piece main body (5) is lower working face (2), wherein go up working face parallel with lower working face, and the depth of parallelism of upper working face and lower working face is 0.004, the surface roughness of upper working face and lower working face is 0.4;
Between adjacent main shaft (6), the bottom that is positioned at top main shaft is connected with the first rectangular block (3) by bolt, and the upper working face (1) of the lower surface of the first rectangular block (3) and spacing piece is affixed; The top that is positioned at the main shaft of below is connected with the second rectangular block (4) by bolt, and the lower working face (2) of the upper surface of the second rectangular block (4) and spacing piece is affixed; Wherein, the center 3 o'clock of the center of the first rectangular block, spacing Kuai center and the second rectangular block is on a vertical straight line; Parallel to each other and the depth of parallelism of two planes of upper surface of the lower surface of the first rectangular block and the second rectangular block is 0.004, and surface roughness is 0.4.
2. spacing piece is used in pipe sheet deep hole processing according to claim 1, it is characterized in that: the material of described spacing piece is cold work die steel Cr12.
3. spacing piece is used in pipe sheet deep hole processing according to claim 1, it is characterized in that: described spacing piece case hardness is HRC60～65.
4. spacing piece is used in pipe sheet deep hole processing according to claim 1, it is characterized in that: the tolerance of the working size of this spacing piece is 0.01mm.
5. spacing piece is used in pipe sheet deep hole processing according to claim 1, it is characterized in that: between adjacent main shaft, the lower surface that is positioned at first rectangular block (3) of top main shaft is the first locating surface; The upper surface that is positioned at the second rectangular block of below main shaft is the second locating surface;
Between the first locating surface and the second locating surface, spacing equals the working size of spacing piece, i.e. spacing piece thickness, and spacing dimension tolerance is 0.01mm.
6. spacing piece is used in pipe sheet deep hole processing according to claim 1, it is characterized in that: between adjacent two main shafts (6), settle 2 or 2 above spacing pieces, and all spacing piece working sizes between two main shafts (6) are identical.
7. pipe sheet deep hole according to claim 6 is processed and is used spacing piece, it is characterized in that: in spacing piece manufacturing procedure, final step operation is fine ginding, between two main shafts, the upper working face of all spacing pieces and the fine ginding operation of lower working face are carried out simultaneously, and all spacing pieces are placed side by side carries out fine ginding processing on grinding machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310528480.4A CN103551626B (en) | 2013-10-30 | 2013-10-30 | Spacing block is used in pipe sheet deep hole processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310528480.4A CN103551626B (en) | 2013-10-30 | 2013-10-30 | Spacing block is used in pipe sheet deep hole processing |
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| Publication Number | Publication Date |
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| CN103551626A true CN103551626A (en) | 2014-02-05 |
| CN103551626B CN103551626B (en) | 2016-03-30 |
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| CN201310528480.4A Active CN103551626B (en) | 2013-10-30 | 2013-10-30 | Spacing block is used in pipe sheet deep hole processing |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104289741A (en) * | 2014-09-03 | 2015-01-21 | 长春设备工艺研究所 | Device for highly-precisely machining inner hole in track shoe through single pipe reamer |
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| CN103273103A (en) * | 2013-05-29 | 2013-09-04 | 哈电集团（秦皇岛）重型装备有限公司 | High temperature gas cooled reactor vapor generator nickel base tube plate deep hole machining method |
| CN103286338A (en) * | 2013-06-18 | 2013-09-11 | 哈电集团（秦皇岛）重型装备有限公司 | AP1000 steam generator tube plate group hole high-efficiency machining technology and method |
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2013
- 2013-10-30 CN CN201310528480.4A patent/CN103551626B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH04122505A (en) * | 1990-09-10 | 1992-04-23 | Saburo Watanabe | Device for displaying distance between spindles and angle of spindles of multispindle drilling machine |
| JP2000153404A (en) * | 1998-11-18 | 2000-06-06 | Umemoto Kosho:Kk | Boring method and device therefor |
| CN201702409U (en) * | 2010-05-26 | 2011-01-12 | 东方电气(广州)重型机器有限公司 | Integrated multi-hole processing device |
| JP2013039658A (en) * | 2011-07-20 | 2013-02-28 | Honda Motor Co Ltd | Machine tool and machining method using the same |
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| CN103273103A (en) * | 2013-05-29 | 2013-09-04 | 哈电集团（秦皇岛）重型装备有限公司 | High temperature gas cooled reactor vapor generator nickel base tube plate deep hole machining method |
| CN103286338A (en) * | 2013-06-18 | 2013-09-11 | 哈电集团（秦皇岛）重型装备有限公司 | AP1000 steam generator tube plate group hole high-efficiency machining technology and method |
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| CN104289741A (en) * | 2014-09-03 | 2015-01-21 | 长春设备工艺研究所 | Device for highly-precisely machining inner hole in track shoe through single pipe reamer |
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| CN103551626B (en) | 2016-03-30 |
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