CN110977565B - Clamp for machining long pipe - Google Patents
Clamp for machining long pipe Download PDFInfo
- Publication number
- CN110977565B CN110977565B CN201911118781.3A CN201911118781A CN110977565B CN 110977565 B CN110977565 B CN 110977565B CN 201911118781 A CN201911118781 A CN 201911118781A CN 110977565 B CN110977565 B CN 110977565B
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- mandrel
- hole
- cylindrical pin
- pressing plate
- groove
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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
- B23Q3/12—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for securing to a spindle in general
- B23Q3/14—Mandrels in general
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
- Turning (AREA)
Abstract
The invention relates to a clamp for machining a long pipe, which comprises a mandrel with a positioning step shaft, a pressing plate, a cover plate and a pressing cover, wherein the mandrel penetrates through the long pipe to be machined, a hole is formed in the pressing plate, a cylindrical pin penetrates into the hole and serves as a rotating shaft of the pressing plate, a groove is designed on the end surface of the positioning step shaft of the mandrel according to the diameter of the cylindrical pin, the cylindrical pin is arranged in the groove, the pressing plate is axially arranged along the mandrel, the upper end of the mandrel is connected with the cover plate, the groove for arranging the cylindrical pin is a closed groove, and the pressing plate and the cylindrical pin are radially limited; a through hole is formed in the pressure plate along the radial direction of the mandrel, and a screw penetrates through the through hole and is fixed on the mandrel to radially position the long pipe; the other end of the mandrel is provided with a gland along the axial direction and is locked with the mandrel by a hexagonal nut with a shoulder for axial positioning. The problem of the lathe machine to the difficult problem of long tube course of working is solved, guaranteed the axiality in the long tube course of working and the problem that quivers in the course of working, improved the repair qualification rate of long tube.
Description
Technical Field
The invention belongs to the technical field of pipe part machining, and particularly relates to a clamp for machining a long pipe.
Background
The long pipe part is long in length and limited in working stroke of a common lathe, vibration is easy to occur in the machining process of the lathe, machining precision is seriously affected, the air guide pipe belongs to the long pipe part, the air guide pipe is repaired by adopting a universal fixture at present, the vibration is easy to occur in the turning process, and the repairing qualified rate is low. Therefore, there is a need for a fixture for lathing long pipes, which can improve the repair yield of a general lathe, to solve the above problems.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the clamp for machining the long pipe, which can solve the problem that the long pipe vibrates in the turning process of a common lathe and improve the repair qualification rate of the long pipe.
The invention is realized by adopting the following technical scheme:
a clamp for machining a long pipe comprises a mandrel with a positioning step shaft, a pressing plate, a cover plate and a pressing cover, wherein the mandrel penetrates through the long pipe to be machined, a hole is formed in the pressing plate, a cylindrical pin penetrates into the hole to serve as a rotating shaft of the pressing plate, a groove is designed on the end face of the mandrel positioning step shaft according to the diameter of the cylindrical pin, the cylindrical pin is installed in the groove, the pressing plate is placed along the axial direction of the mandrel, the cover plate is connected to the upper end of the mandrel, the groove for installing the cylindrical pin is a closed groove, and the pressing plate and the cylindrical pin are limited in the radial direction; a through hole is formed in the pressure plate along the radial direction of the mandrel, and a screw penetrates through the through hole and is fixed on the mandrel to radially position the long pipe; the other end of the mandrel is provided with a gland along the axial direction and is locked with the mandrel by a hexagonal nut with a shoulder for axial positioning.
Threaded holes are formed in two ends of the mandrel.
One end of the mandrel is provided with a radial threaded hole which is coaxial with the pressing plate through hole and is used for radially fixing the long pipe.
And a conical washer and a spherical washer are assembled between the gland and the hexagonal nut with the shoulder.
The gland is of a sinking type.
The cover plate is connected to the upper end of the positioning step shaft of the mandrel through a hexagon socket head cap screw.
A plurality of grooves can be designed on the end surface of the mandrel positioning step shaft, and a plurality of cylindrical pins and a pressing plate are correspondingly arranged.
The invention has the beneficial effects that: according to the invention, one end of the long pipe is radially positioned by adopting the adjustable pressure plate, and the other end of the long pipe is axially positioned by adopting the spherical gasket and the conical gasket to match with the adjusting gland, so that the problem of the common lathe in the long pipe processing process is solved, the coaxiality and the vibration problems in the long pipe processing process are ensured, and the repair qualified rate of the long pipe is improved. The invention has novel, reasonable and feasible structure and simple operation, and has wide popularization in the field of processing long pipes comprising air ducts.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of a clamp of the present invention secured to a long tube as provided in an embodiment;
FIG. 3 is a side view of FIG. 2;
wherein the content of the first and second substances,
the novel structure comprises a mandrel 1, a pressing plate 2, a cover plate 3, a pressing cover 4, a hexagonal nut with a shoulder 5, a spherical gasket 6, a cylindrical pin 7, a hexagon socket head cap screw 8, a hexagon socket head cap screw I9 and a conical gasket 10.
Detailed Description
For better understanding of the present invention, the technical solutions and effects of the present invention will be described in detail by the following embodiments with reference to the accompanying drawings.
As shown in fig. 1, a fixture for machining a long tube comprises a mandrel 1 with a positioning step shaft, a pressing plate 2, a cover plate 3 and a pressing cover 4, wherein the mandrel 1 penetrates through the long tube to be machined, a hole is formed in the pressing plate 2, a cylindrical pin 7 is inserted into the hole to serve as a rotating shaft of the pressing plate 2, a groove is designed on the end face of the positioning step shaft of the mandrel 1 according to the diameter of the cylindrical pin 7, the cylindrical pin 7 is installed in the groove, the pressing plate 2 is placed along the axial direction of the mandrel 1, the cover plate 3 is connected to the upper end of a shaft shoulder of the mandrel 1, the groove for installing the cylindrical pin 7 is a closed groove, and the pressing plate 2 and the cylindrical pin 7 are limited in the radial direction; a through hole is formed in the pressure plate 2 along the radial direction of the mandrel 1, a radial threaded hole coaxial with the through hole of the pressure plate 2 is formed in one end of the mandrel 1 and used for radially fixing a long pipe, and an inner hexagonal socket head cap screw 8 penetrates through the through hole and is fixed on the mandrel 1 to radially position the long pipe; the other end of the mandrel 1 is axially provided with a sinking type gland 4, the cover plate 3 is connected to the upper end of a positioning step shaft of the mandrel 1 through a first hexagon socket head cap screw 9 and is locked with the mandrel 1 through a hexagonal socket head cap nut 5 to be axially positioned, a conical surface gasket 10 and a spherical surface gasket 6 are assembled between the gland 4 and the hexagonal socket head cap nut 5, and two ends of the mandrel 1 are provided with threaded holes. Three grooves are designed on the end surface of the positioning step shaft of the central shaft 1 in the embodiment, and three cylindrical pins 7 and the pressure plate 2 are correspondingly arranged.
As shown in fig. 2-3, the clamp for machining a long tube of the present invention is used for clamping an air conduit with a total length of 910mm, and the clamping process is as follows: the method comprises the steps of loading an air guide pipe to be processed into a spindle 1 from the end of a gland 4, attaching the end face of the air guide pipe to the inner end face of the other end of the spindle 1, installing the gland 4, a conical washer 10 and a spherical washer 6, screwing a hexagonal nut 5 with a shoulder, installing a clamp and a part on a lathe together, aligning the part, adjusting a pressure plate 2 by adjusting an inner hexagonal socket head cap screw 8, adjusting the radial position of the part, and adjusting the coaxiality of the part and the lathe spindle to meet the processing technological requirements.
Claims (1)
1. The utility model provides a anchor clamps of machine tooling long tube which characterized in that: the device comprises a mandrel with a positioning step shaft, a pressing plate, a cover plate and a gland, wherein the mandrel penetrates through a long pipe to be processed, a hole is formed in the pressing plate, a cylindrical pin is inserted into the hole to serve as a rotating shaft of the pressing plate, a groove is designed on the end face of the mandrel positioning step shaft according to the diameter of the cylindrical pin, the cylindrical pin is installed in the groove, the pressing plate is placed along the axial direction of the mandrel, the cover plate is connected to the upper end of the mandrel, the groove for installing the cylindrical pin is a closed groove, and the pressing plate and the cylindrical pin are limited in the radial direction; a through hole is formed in the pressure plate along the radial direction of the mandrel, and a screw penetrates through the through hole and is fixed on the mandrel to radially position the long pipe; the other end of the mandrel is provided with a gland along the axial direction and is locked with the mandrel by a hexagonal nut with a shoulder for axial positioning; one end of the mandrel is provided with a radial threaded hole which is coaxial with the through hole of the pressure plate and is used for radially fixing the long pipe; a conical washer and a spherical washer are assembled between the gland and the hexagonal nut with the shoulder; the gland is of a sinking type; the end face of the positioning step shaft is provided with a plurality of grooves, and a plurality of cylindrical pins and pressing plates are correspondingly arranged; threaded holes are formed in two ends of the mandrel; the cover plate is connected to the upper end of the positioning step shaft of the mandrel through a hexagon socket head cap screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911118781.3A CN110977565B (en) | 2019-11-15 | 2019-11-15 | Clamp for machining long pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911118781.3A CN110977565B (en) | 2019-11-15 | 2019-11-15 | Clamp for machining long pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110977565A CN110977565A (en) | 2020-04-10 |
| CN110977565B true CN110977565B (en) | 2021-08-24 |
Family
ID=70084681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911118781.3A Active CN110977565B (en) | 2019-11-15 | 2019-11-15 | Clamp for machining long pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110977565B (en) |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03245905A (en) * | 1990-02-24 | 1991-11-01 | Toshiba Ceramics Co Ltd | Cylinder grinding chuck for tube made of ceramic |
| CN201446439U (en) * | 2009-03-30 | 2010-05-05 | 南京数控机床有限公司 | Main shaft core rod for machining axle sleeve parts |
| CN102990419A (en) * | 2012-12-09 | 2013-03-27 | 重庆天之道科技发展有限公司 | Inner wall clamping fixture with two clamping claws |
| CN202861796U (en) * | 2012-04-25 | 2013-04-10 | 浙江宏源车轮有限公司 | Special clamp for valve hole of non-inner tube wheel of engineering truck |
| CN203266139U (en) * | 2013-02-25 | 2013-11-06 | 重庆衡山机械有限责任公司 | Clamp for processing impeller |
| CN204159910U (en) * | 2014-10-10 | 2015-02-18 | 广东梅雁吉祥实业投资股份有限公司 | The clamping tool of processing tube tube kind part |
| CN104669169A (en) * | 2015-03-16 | 2015-06-03 | 南车戚墅堰机车有限公司 | Device for utilizing circular ventilation holes to locate pipes |
| CN204381872U (en) * | 2014-12-26 | 2015-06-10 | 长城汽车股份有限公司 | Major axis fixture for processing |
| CN205237662U (en) * | 2015-11-06 | 2016-05-18 | 天津第一机床总厂 | Process main axle part's special fixture |
| CN106514443A (en) * | 2016-12-14 | 2017-03-22 | 济南第机床有限公司 | Special mandrel tool for accurately grinding excircle of main shaft of high-precision numerical control machine tool |
| CN206425911U (en) * | 2016-12-14 | 2017-08-22 | 济南第一机床有限公司 | The special mandrel tool of high-precision numerical control machine main shaft fine cylindrical |
| CN107378582A (en) * | 2017-08-30 | 2017-11-24 | 安徽莱恩电泵有限公司 | Thin-walled support tube clamp for machining |
| CN110091200A (en) * | 2019-04-11 | 2019-08-06 | 武汉船用机械有限责任公司 | The hole processing clamp of air introduction |
| CN110370188A (en) * | 2019-05-31 | 2019-10-25 | 武汉船用机械有限责任公司 | For processing the fixture and clamping method of air introduction |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203003496U (en) * | 2012-08-29 | 2013-06-19 | 安徽春辉仪表线缆集团有限公司 | Pipe fixing device |
| CN103009094A (en) * | 2012-12-05 | 2013-04-03 | 符雪 | Rotary inner clamping device |
| CN104493538A (en) * | 2014-12-22 | 2015-04-08 | 重庆创隆实业有限公司 | Cylinder barrel surface treatment fixing device |
| CN105252299A (en) * | 2015-10-30 | 2016-01-20 | 重庆市璧山县振昌汽车配件有限公司 | Gear clamping device |
| CN109822456A (en) * | 2019-01-31 | 2019-05-31 | 中国航发动力股份有限公司 | A kind of pneumatic scroll chuck fixture of rotation tensioning |
-
2019
- 2019-11-15 CN CN201911118781.3A patent/CN110977565B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03245905A (en) * | 1990-02-24 | 1991-11-01 | Toshiba Ceramics Co Ltd | Cylinder grinding chuck for tube made of ceramic |
| CN201446439U (en) * | 2009-03-30 | 2010-05-05 | 南京数控机床有限公司 | Main shaft core rod for machining axle sleeve parts |
| CN202861796U (en) * | 2012-04-25 | 2013-04-10 | 浙江宏源车轮有限公司 | Special clamp for valve hole of non-inner tube wheel of engineering truck |
| CN102990419A (en) * | 2012-12-09 | 2013-03-27 | 重庆天之道科技发展有限公司 | Inner wall clamping fixture with two clamping claws |
| CN203266139U (en) * | 2013-02-25 | 2013-11-06 | 重庆衡山机械有限责任公司 | Clamp for processing impeller |
| CN204159910U (en) * | 2014-10-10 | 2015-02-18 | 广东梅雁吉祥实业投资股份有限公司 | The clamping tool of processing tube tube kind part |
| CN204381872U (en) * | 2014-12-26 | 2015-06-10 | 长城汽车股份有限公司 | Major axis fixture for processing |
| CN104669169A (en) * | 2015-03-16 | 2015-06-03 | 南车戚墅堰机车有限公司 | Device for utilizing circular ventilation holes to locate pipes |
| CN205237662U (en) * | 2015-11-06 | 2016-05-18 | 天津第一机床总厂 | Process main axle part's special fixture |
| CN106514443A (en) * | 2016-12-14 | 2017-03-22 | 济南第机床有限公司 | Special mandrel tool for accurately grinding excircle of main shaft of high-precision numerical control machine tool |
| CN206425911U (en) * | 2016-12-14 | 2017-08-22 | 济南第一机床有限公司 | The special mandrel tool of high-precision numerical control machine main shaft fine cylindrical |
| CN107378582A (en) * | 2017-08-30 | 2017-11-24 | 安徽莱恩电泵有限公司 | Thin-walled support tube clamp for machining |
| CN110091200A (en) * | 2019-04-11 | 2019-08-06 | 武汉船用机械有限责任公司 | The hole processing clamp of air introduction |
| CN110370188A (en) * | 2019-05-31 | 2019-10-25 | 武汉船用机械有限责任公司 | For processing the fixture and clamping method of air introduction |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110977565A (en) | 2020-04-10 |
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