CN107030500B - Clamping device for cutting end pipe of million-nuclear power water chamber shell - Google Patents
Clamping device for cutting end pipe of million-nuclear power water chamber shell Download PDFInfo
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- CN107030500B CN107030500B CN201710282666.4A CN201710282666A CN107030500B CN 107030500 B CN107030500 B CN 107030500B CN 201710282666 A CN201710282666 A CN 201710282666A CN 107030500 B CN107030500 B CN 107030500B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/062—Work-clamping means adapted for holding workpieces having a special form or being made from a special material
- B23Q3/064—Work-clamping means adapted for holding workpieces having a special form or being made from a special material for holding elongated workpieces, e.g. pipes, bars or profiles
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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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- Engineering & Computer Science (AREA)
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- Clamps And Clips (AREA)
Abstract
A clamping device for cutting off and processing end pipes of a million-nuclear power water chamber shell relates to the field of cutting off and processing large-diameter pipe fittings. In order to solve the problems that the cutting processing of the large-diameter pipe fitting of the conventional million-core electric auxiliary machine has low processing efficiency, long processing time, poor stability of pipe fitting installation, low safety and easy falling, and harmful dust is generated by manually cutting the pipe fitting to harm human health. The inverted T-shaped screw rod is inserted into an inverted T-shaped groove on a machine tool flower disc, the supporting screw rod is arranged at the upper part of the inverted T-shaped groove of the machine tool flower disc, the inverted T-shaped screw rod and the supporting screw rod sequentially penetrate through holes in the first connecting plate and the second connecting plate, the gasket is sleeved on the inverted T-shaped screw rod, the first nut is matched with the supporting screw rod, the pressing plate is sleeved on the inverted T-shaped screw rod, one end of the pressing plate is lapped on the first nut, the other end of the pressing plate is lapped on the pipe fitting, and the second nut is screwed on the inverted T-shaped screw rod. The invention is used for cutting off the end pipe of the million-nuclear power water chamber shell.
Description
Technical Field
The invention relates to the field of large-diameter pipe fitting cutting-off processing, in particular to a clamping device for cutting off a pipe at the end part of a million-nuclear power water chamber shell.
Background
The end pipe of the million-core electric water chamber shell is of a large tubular structure with the inner diameter of phi 1850mm, the wall thickness of 46mm and the height of 1620mm, the design requires that the pipe fitting is cut into two sections at a position 150mm away from one side end surface, because when the vertical lathe is directly cut off, the vertical lathe rotates at high speed, the two sections of the cut pipe fitting (the two sections of the pipe fitting comprise an upper pipe fitting and a lower pipe fitting) are in a clamping-free state, the upper pipe fitting can be thrown off to hurt personnel and a machine tool, and a great potential safety hazard exists.
In summary, the existing large-diameter pipe fitting cutting processing of the million-core electric auxiliary machine has the problems of low processing efficiency, long processing time, poor stability of pipe fitting installation, low safety, easy falling, and harm to human health caused by the fact that the pipe fitting is cut manually.
Disclosure of Invention
The invention aims to solve the problems that in summary, the existing large-diameter pipe fitting cutting processing of the million-core electric auxiliary machine has low processing efficiency, long processing time, poor pipe fitting installation stability, low safety and easy falling, and the pipe fitting is cut manually to generate harmful dust and harm human health. Further provides a clamping device for cutting off and processing the end pipe of the million-core electric water chamber shell.
The technical scheme of the invention is as follows:
the clamping device for cutting off and processing the end pipe of the million-nucleus electric water chamber shell comprises a machine tool flower disc, four flower disc clamping jaws, a plurality of clamping pieces, a support screw rod, a first nut, a first connecting plate, a second connecting plate, a gasket, a pressing plate and a second nut, wherein the four flower disc clamping jaws are arranged on the machine tool flower disc in an annular array mode, each clamping piece comprises an inverted T-shaped screw rod, a support screw rod, a first nut, a first connecting plate, a second connecting plate, a gasket, a pressing plate and a second nut, the inverted T-shaped screw rod is vertically arranged, the inverted T-shaped screw rod comprises a first support column and a second cylindrical screw rod, one end of the second cylindrical screw rod is fixedly connected with the first support column, the other end of the second cylindrical screw rod is provided with threads, the second cylindrical screw rod at the lower end of the inverted T-shaped screw rod is inserted in an inverted T-shaped groove on the machine tool flower disc, the support screw rod is arranged in parallel with the inverted T-shaped screw rod, the support screw rod comprises a first rectangular block, a second rectangular block and a third cylindrical screw rod, the first rectangular block, the second rectangular block and the third cylindrical screw are fixedly connected in sequence from bottom to top, one end of the third cylindrical screw is provided with a boss, one end of the third cylindrical screw is provided with threads, the second rectangular block on the supporting screw is arranged at the upper part of the inverted T-shaped groove of the flower disc of the machine tool, the first rectangular block is tightly matched with the inverted T-shaped groove of the flower disc of the machine tool, the first connecting plate and the second connecting plate are cuboid connecting plates, two through holes which are arranged in parallel are respectively arranged on the first connecting plate and the second connecting plate, the inverted T-shaped screw and the supporting screw sequentially pass through the through holes on the first connecting plate and the second connecting plate, the lower end face of the first connecting plate is contacted with the upper end face of the second rectangular block on the supporting screw, the lower end face of the second connecting plate is contacted with the upper end face of the boss on the supporting screw, the gasket is a cuboid gasket, a round through hole is arranged on the cuboid gasket, the gasket sets up the upper end at the second connecting plate, and circular through-hole on the gasket cup joints on the type of falling T screw rod, and first nut and supporting screw rod cooperation, the clamp plate are the cuboid clamp plate, and the central point of cuboid clamp plate puts and is equipped with a through-hole, and the through-hole on the clamp plate cup joints on the type of falling T screw rod, and the one end overlap joint of clamp plate is on first nut, and the clamp plate other end overlap joint is on the pipe fitting, and the second nut revolves to twist on the type of falling T screw rod and with the screw thread cooperation of the type of falling T screw rod other end.
Further, two symmetrically distributed pin edge grooves are formed in two sides of the first nut.
Further, the through holes on the pressing plate are kidney-shaped through holes.
Further, one side of the pressing plate is provided with an arc through groove, and the arc through groove is matched with the outer wall of the pipe fitting.
Further, the first nut is a cylindrical cover nut, one end of the cylindrical cover nut is provided with a threaded blind hole, and the first nut is in threaded fit with one end of a third cylindrical screw on the support screw through the threaded blind hole.
Further, it also includes a washer disposed between the second nut and the pressure plate.
Compared with the prior art, the invention has the following effects:
1. according to the invention, the freedom degree of the upper pipe fitting of the pipe fitting in the vertical direction is limited by the support of the gasket and the compression of the pressing plate, the freedom degree of the upper pipe fitting of the pipe fitting in the radial direction is limited by the through groove on the pressing plate, the stability of the upper pipe fitting of the pipe fitting is ensured, the falling-off of the pipe fitting in the cutting-off processing process is avoided, and the safety of the processing process is ensured.
2. According to the pipe fitting cutting machine, the pipe fitting is cut off through twice clamping, a bench worker does not need to manually cut off the pipe fitting by using a sheet type abrasive wheel cutting machine, the pipe fitting cutting machining efficiency is improved, the labor cost and the time cost are saved, the cutting machining efficiency is increased by more than 80%, and the machining time of each pipe fitting is saved by more than 10 hours.
3. The invention avoids the problems that the bench workers of the traditional method generate harmful dust during long-time grinding wheel cutting and influence the health of human bodies. Reduces the potential safety hazard of operators and effectively improves the working environment of the production workshop.
4. The invention has simple structure, the used parts can be processed by the existing machine tool, the manufacturing cost is low, the operation is convenient, the pipe fitting is fixed on the machine tool flower disc in the radial direction by the clamp, the cut upper pipe fitting is prevented from being in a clamping-free state when the pipe fitting rotates at a high speed, the upper pipe fitting can be thrown off to hurt personnel and the machine tool, and the safety is effectively ensured.
5. The supporting screw rod 2 is connected with the inverted T-shaped screw rod 1 through the first connecting plate 4 and the second connecting plate 5, the gasket 6 is sleeved on the inverted T-shaped screw rod 1, and one of the four gaskets is prevented from loosening (three points determine a plane) in the processing process and is thrown out to hurt people; the stability of the inverted T-shaped screw 1 and the supporting screw 2 is effectively guaranteed, and the gasket 6 is prevented from being lost during disassembly and assembly or transportation.
Drawings
FIG. 1 is an isometric view of the invention;
FIG. 2 isbase:Sub>A cross-sectional view taken along the direction A-A of FIG. 1;
FIG. 3 is a schematic view of the structure of the clamping tube 10 of the present invention;
FIG. 4 is an isometric view of a first clamping process;
fig. 5 is an isometric view of a second clamping process.
Detailed Description
The first embodiment is as follows: referring to fig. 1 to 5, a clamping device for cutting off the end tube of the water chamber housing of a million-nucleus electric water chamber of the present embodiment is described, which comprises a machine tool flower disc 12 and four flower disc claws 11, the four flower disc claws 11 are arranged on the machine tool flower disc 12 in a ring array, and a plurality of clamping pieces are arranged on the machine tool flower disc 12 in a ring array, each clamping piece comprises an inverted-T screw 1, a supporting screw 2, a first nut 3, a first connecting plate 4, a second connecting plate 5, a gasket 6, a pressing plate 7 and a second nut 9, the inverted-T screw 1 is vertically arranged, the inverted-T screw 1 comprises a first supporting column 1-1 and a second cylindrical screw 1-2, one end of the second cylindrical screw 1-2 is fixedly connected with the first supporting column 1-1, the other end of the second cylindrical screw 1-2 is provided with threads, the second cylindrical screw 1-2 at the lower end of the inverted T-shaped screw 1 is inserted into an inverted T-shaped groove on a machine tool flower disc 12, the supporting screw 2 is arranged in parallel with the inverted T-shaped screw 1, the supporting screw 2 comprises a first rectangular block 2-1, a second rectangular block 2-2 and a third cylindrical screw 2-3, the first rectangular block 2-1, the second rectangular block 2-2 and the third cylindrical screw 2-3 are fixedly connected in sequence from bottom to top, one end of the third cylindrical screw 2-3 is provided with a boss, one end of the third cylindrical screw 2-3 is provided with threads, the second rectangular block 2-2 on the supporting screw 2 is arranged at the upper part of the inverted T-shaped groove of the machine tool flower disc 12, the first rectangular block 2-1 is tightly matched with the inverted T-shaped groove of the machine tool flower disc 12, the first connecting plate 4 and the second connecting plate 5 are cuboid connecting plates, the first connecting plate 4 and the second connecting plate 5 are respectively provided with two through holes which are arranged in parallel, the inverted T-shaped screw 1 and the supporting screw 2 sequentially penetrate through the through holes of the first connecting plate 4 and the second connecting plate 5, the lower end face of the first connecting plate 4 is in contact with the upper end face of the second rectangular block 2-2 on the supporting screw 2, the lower end face of the second connecting plate 5 is in contact with the upper end face of the boss on the supporting screw 2, the gasket 6 is a cuboid gasket, a round through hole is arranged on the cuboid gasket, the gasket 6 is arranged at the upper end of the second connecting plate 5, the round through hole on the gasket 6 is sleeved on the inverted T-shaped screw 1, the first nut 3 is a cylindrical cover nut, one end of the cylindrical cover nut is provided with a threaded blind hole 3-1, the first nut 3 is in threaded fit with one end of the third cylindrical screw 2-3 on the supporting screw 2 through the threaded blind hole 3-1, the pressing plate 7 is a cuboid pressing plate, the center position of the cuboid pressing plate is provided with a through hole 7-2, the through hole 7-2 on the pressing plate 7-2 is sleeved on the inverted T-shaped screw 1, one end of the pressing plate 7 is sleeved on the first pressing plate 3, the other end of the pressing plate 7 is screwed on the inverted T-shaped screw 1, and the other end of the first nut is screwed on the inverted T-shaped screw 1. The second embodiment is as follows: the present embodiment will be described with reference to fig. 1 and 2, in which two symmetrically distributed pin edge grooves 3-2 are formed on both sides of a first nut 3. So set up, facilitate the use of spanner to twist first nut 3. Other compositions and connection relationships are the same as those of the first embodiment.
And a third specific embodiment: the present embodiment will be described with reference to fig. 1 and 2, in which the through-hole 7-2 in the platen 7 is a kidney-shaped through-hole. So set up, the waist shape through-hole on clamp plate 7 is convenient to adjust the position of the type of falling T screw rod, makes things convenient for the dismouting of type of falling T screw rod. Other compositions and connection relationships are the same as those of the first or second embodiment.
The specific embodiment IV is as follows: in the present embodiment, a circular arc through groove 7-1 is formed in one side of the pressing plate 7, and the circular arc through groove 7-1 is engaged with the outer wall of the pipe 10, as described with reference to fig. 1, 2 and 5. So set up, the circular arc through groove 7-1 of clamp plate 7 has restricted the degree of freedom of pipe fitting in radial direction, has guaranteed the stability after the pipe fitting cuts, prevents that the pipe fitting from droing, has guaranteed the security of pipe fitting course of working. Other compositions and connection relationships are the same as those of the first, second or third embodiments.
Fifth embodiment: referring to fig. 2, the first nut 3 of the present embodiment is a cylindrical cap nut, one end of the cylindrical cap nut is provided with a threaded blind hole 3-1, and the first nut 3 is engaged with the thread of one end of the third cylindrical screw 2-3 on the support screw 2 through the threaded blind hole 3-1. So set up, twist first nut 3 and then adjust the height of supporting screw rod 2, the upper end of first nut 3 supports the one end of clamp plate 7 for the circular arc through groove 7-1 of the other end of clamp plate 7 cooperates with the pipe fitting upper end. Other compositions and connection relationships are the same as those of the first, second, third or fourth embodiments.
Specific embodiment six: the present embodiment will be described with reference to fig. 2 and 5, and further includes a washer 8, the washer 8 being disposed between the second nut 9 and the pressing plate 7. So set up, the packing ring 8 compresses tightly clamp plate 7 through second nut 9, and packing ring 8 can effectively protect clamp plate 7 from destruction. Other compositions and connection relationships are the same as those of the first, second, third, fourth or fifth embodiments.
Working principle:
the working principle of the present invention is explained with reference to fig. 1 to 5:
firstly, mounting a pipe fitting 10 on a machine tool flower disc 12, and clamping and firmly pressing the pipe fitting 10 from four symmetrical points at an inner hole of the pipe fitting 10 by using a plurality of clamping pieces; cutting the pipe fitting 10 into annular grooves with the depth of about 36mm by using a cutting lathe tool, and keeping the wall thickness of 10mm; inserting the inverted T-shaped screw 1 into an inverted T-shaped groove on a machine tool flower disc 12, placing a first rectangular block 2-1 on a supporting screw 2 on the upper part of the inverted T-shaped groove on the machine tool flower disc 12, tightly matching the first rectangular block 2-1 with the inverted T-shaped groove, enabling through holes on a first connecting plate 4 and a second connecting plate 5 to penetrate through the inverted T-shaped screw 1 and the supporting screw 2, enabling the first connecting plate 4 and the second connecting plate 5 to connect the screw 1 and the screw 2 at different heights, enabling a gasket 6 to penetrate into the inverted T-shaped screw 1, enabling the thickness of the gasket 6 to be equal to the width of a ring groove machined on a pipe fitting 10, and moving the positions of the inverted T-shaped screw 1 and the supporting screw 2;
then the gasket 6 is plugged into the processed annular groove of the pipe fitting 10, the gasket 6 is tightly matched with the annular groove on the pipe fitting 10, the first nut 3 is screwed into the supporting screw rod 2 to adjust the height, the height of the first nut 3 is equal to that of the pipe fitting 10, the pressing plate 7 passes through the inverted T-shaped screw rod 1, one end of the pressing plate 7 is lapped on the first nut 3 on the screw rod 2, the other end of the pressing plate 7 is pressed on the pipe fitting 10, the through groove 7-1 on the pressing plate 7 is matched with the outer wall of the pipe fitting 10 to limit the horizontal freedom degree of the pipe wall of the pipe fitting 10, the gasket 8 is sleeved into the inverted T-shaped screw rod 1, the second nut 9 is screwed into the inverted T-shaped screw rod 1, the pressing plate 7 is tightly pressed by a spanner, the pipe fitting 10 is clamped by four clamping pieces at four symmetrical points of the pipe fitting 10,
finally, the machine tool is started, and the pipe 10 is cut by the cutting tool from the position of the inner side of the pipe 10, which is 150mm away from the end surface and corresponds to the outer side annular groove, until the pipe 10 is cut.
The two cut-off pipe fittings are supported by the gasket 6 and pressed by the pressing plate 7, so that the freedom degree of the upper pipe fitting in the vertical direction is limited, and the through groove 7-1 of the pressing plate 7 limits the freedom degree of the upper pipe fitting in the radial direction.
The invention ensures the stability of the upper pipe fitting, prevents the upper pipe fitting from falling off in the processing process, improves the processing efficiency by more than 10 hours, and ensures the safety in the processing process.
Claims (5)
1. The utility model provides a million nuclear current room casing tip pipe cuts clamping device for processing, it includes lathe flower disc (12) and four flower disc jack catch (11), and four flower disc jack catch (11) are installed on lathe flower disc (12) with annular array's mode, its characterized in that: the machine tool comprises a machine tool flower disc (12), a plurality of clamping pieces, a support screw (2), a first nut (3), a first connecting plate (4), a second connecting plate (5), a gasket (6), a pressing plate (7) and a second nut (9), wherein the inverted T-shaped screw (1) is vertically arranged, the inverted T-shaped screw (1) comprises a first support column (1-1) and a second cylindrical screw (1-2), one end of the second cylindrical screw (1-2) is fixedly connected with the first support column (1-1), threads are machined at the other end of the second cylindrical screw (1-2), the second cylindrical screw (1-2) at the lower end of the inverted T-shaped screw (1) is inserted into an inverted T-shaped groove on the machine tool flower disc (12), the support screw (2) is parallel to the inverted T-shaped screw (1), the support screw (2) comprises a first rectangular block (2-1), a second rectangular block (2-2) and a third rectangular block (2-2) which are sequentially fixedly connected with the first rectangular block (2-2) and the third rectangular block (2-3-2) by the upper end of the third cylindrical screw (2-3), one end of a third cylindrical screw rod (2-3) is provided with threads, a second rectangular block (2-2) on a supporting screw rod (2) is arranged on the upper part of an inverted T groove of a machine tool flower disc (12), the first rectangular block (2-1) is tightly matched with the inverted T groove of the machine tool flower disc (12), a first connecting plate (4) and a second connecting plate (5) are both cuboid connecting plates, two through holes which are arranged in parallel are respectively arranged on the first connecting plate (4) and the second connecting plate (5), the inverted T-shaped screw rod (1) and the supporting screw rod (2) sequentially penetrate through the through holes on the first connecting plate (4) and the second connecting plate (5), the lower end face of the first connecting plate (4) is contacted with the upper end face of the second rectangular block (2-2) on the supporting screw rod (2), the lower end face of the second connecting plate (5) is contacted with the upper end face of a boss on the supporting screw rod (2), the gasket (6) is a cuboid gasket, the gasket (6) is provided with a round through hole, the gasket (6) is arranged on the upper end of the second connecting plate (5) and penetrates through holes on the second connecting plate (2) in parallel, the lower end of the second connecting plate (2) is sleeved with the second connecting plate (2) and the second connecting plate (2) is sleeved with the round through holes (7), the through hole (7-2) on the pressing plate (7) is sleeved on the inverted T-shaped screw (1), one end of the pressing plate (7) is lapped on the first nut (3), the other end of the pressing plate (7) is lapped on the pipe fitting, the second nut (9) is screwed on the inverted T-shaped screw (1) and is matched with the thread at the other end of the inverted T-shaped screw (1), one side of the pressing plate (7) is provided with an arc through groove (7-1), and the arc through groove (7-1) is matched with the outer wall of the pipe fitting (10);
firstly, mounting a pipe fitting (10) on a machine tool flower disc (12), and clamping and firmly pressing the pipe fitting (10) from four symmetrical points at an inner hole of the pipe fitting (10) by using four clamping pieces; cutting the pipe fitting (10) into annular grooves with the depth of about 36mm by using a cutting lathe tool from the position of 150mm from the outer side of the pipe fitting (10) to the end surface, and keeping the wall thickness of 10mm;
then the gasket (6) is plugged into the ring groove processed by the pipe fitting (10), the thickness of the gasket (6) is equal to the width of the ring groove processed by the pipe fitting (10), and the gasket (6) is tightly matched with the ring groove on the pipe fitting (10); four clamping pieces are used for symmetrically clamping and pressing the pipe fitting (10) from four points on the outer side of the pipe fitting (10);
finally, starting the machine tool, and cutting the pipe fitting (10) by using a cutting lathe tool from the position, 150mm away from the end surface, of the inner side of the pipe fitting (10) and corresponding to the outer side annular groove until the pipe fitting (10) is cut off;
the two sections of the cut pipe fittings are supported by the gasket (6) and pressed by the pressing plate (7), so that the degree of freedom of the upper pipe fitting in the vertical direction is limited, the circular arc through groove (7-1) of the pressing plate (7) limits the degree of freedom of the upper pipe fitting in the radial direction, the stability of the upper pipe fitting is ensured, and the upper pipe fitting is prevented from falling off in the processing process.
2. The clamping device for cutting off end pipes of million-core electric water chamber shell according to claim 1, wherein the clamping device comprises: two symmetrically distributed pin edge grooves (3-2) are formed in two sides of the first nut (3).
3. The clamping device for cutting off the end pipe of the million-core electric water chamber shell according to claim 2, wherein the clamping device comprises the following components: the through hole (7-2) on the pressing plate (7) is a waist-shaped through hole.
4. The clamping device for cutting off end pipes of million-core electric water chamber shell according to claim 1, wherein the clamping device comprises: the first nut (3) is a cylindrical cover nut, one end of the cylindrical cover nut is provided with a threaded blind hole (3-1), and the first nut (3) is matched with threads at one end of a third cylindrical screw (2-3) on the supporting screw (2) through the threaded blind hole (3-1).
5. The clamping device for cutting off end pipes of million-core electric water chamber shell according to claim 1, wherein the clamping device comprises: the device also comprises a gasket (8), and the gasket (8) is arranged between the second nut (9) and the pressing plate (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710282666.4A CN107030500B (en) | 2017-04-26 | 2017-04-26 | Clamping device for cutting end pipe of million-nuclear power water chamber shell |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710282666.4A CN107030500B (en) | 2017-04-26 | 2017-04-26 | Clamping device for cutting end pipe of million-nuclear power water chamber shell |
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| CN107030500A CN107030500A (en) | 2017-08-11 |
| CN107030500B true CN107030500B (en) | 2023-04-21 |
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| CN110329783A (en) * | 2019-07-22 | 2019-10-15 | 深圳市华星光电半导体显示技术有限公司 | A kind of transport mechanism |
| CN112846831B (en) * | 2020-12-29 | 2022-11-15 | 中钢集团邢台机械轧辊有限公司 | Ring supporting device and ring removing method for removing rings from hole end of large barrel |
| CN113275926B (en) * | 2021-06-17 | 2022-08-23 | 哈尔滨汽轮机厂有限责任公司 | Tool for machining oil injection ring and method for machining oil injection ring by using tool |
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| CN105499672A (en) * | 2016-01-19 | 2016-04-20 | 宝鸡石油机械有限责任公司 | Method for milling barrel material into arc-shaped plate |
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| CA2542630A1 (en) * | 2006-04-10 | 2007-10-10 | Enbridge Gas Distribution Inc. | Service tee cutting apparatus and abandonment method |
| CN201070717Y (en) * | 2007-06-25 | 2008-06-11 | 哈尔滨汽轮机厂有限责任公司 | Cramping arrangement for turning cylinder bore of machine group with less than 200,000 kilowatts |
| CN201900472U (en) * | 2010-12-15 | 2011-07-20 | 焦作瑞塞尔盘式制动器有限公司 | Lathe fixture used for processing cylinder body slot holes of disc brake |
| CN202592031U (en) * | 2012-05-02 | 2012-12-12 | 南车戚墅堰机车有限公司 | Vertical lathe equipment for sleeve parts |
| CN103447862B (en) * | 2013-08-30 | 2015-08-19 | 哈尔滨汽轮机厂有限责任公司 | Milling car Compositions of metal-working machines flexible frock |
| CN105415007B (en) * | 2015-12-11 | 2017-08-25 | 昌河飞机工业（集团）有限责任公司 | A kind of adjustable double-sided compression device |
| CN205685063U (en) * | 2016-06-24 | 2016-11-16 | 南京浒盛机械加工有限公司 | A kind of balladeur train fixture on three coordinates |
| CN206653165U (en) * | 2017-04-26 | 2017-11-21 | 哈尔滨汽轮机厂有限责任公司 | A kind of million nuclear power hydroecium shell end pipes block processing clamping device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105499672A (en) * | 2016-01-19 | 2016-04-20 | 宝鸡石油机械有限责任公司 | Method for milling barrel material into arc-shaped plate |
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