CN205673697U - A kind of combustion turbine exhaustion cylinder spiral pin hole fraising reamer - Google Patents
A kind of combustion turbine exhaustion cylinder spiral pin hole fraising reamer Download PDFInfo
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- CN205673697U CN205673697U CN201620598564.4U CN201620598564U CN205673697U CN 205673697 U CN205673697 U CN 205673697U CN 201620598564 U CN201620598564 U CN 201620598564U CN 205673697 U CN205673697 U CN 205673697U
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- pin hole
- reamer
- combustion turbine
- cylindrical
- spiral pin
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Abstract
A kind of combustion turbine exhaustion cylinder spiral pin hole fraising reamer, it relates to a kind of spiral pin hole fraising reamer.The purpose of this utility model to solve to utilize existing reamer processing combustion turbine exhaustion cylinder spiral pin hole, the problem of the surface quality difference of pin-and-hole.A kind of combustion turbine exhaustion cylinder spiral pin hole fraising reamer includes cylindrical guides, cutter hub and cylindrical knife shank, and described cylindrical guides coordinates with M27 thread Pilot hole, and the cylindrical place of described cylindrical knife shank is provided with chamfered edge groove.Advantage: the first, the problem solving machining cell poor rigidity by cylindrical guides positioning, it is ensured that the machining accuracy in combustion turbine exhaustion cylinder spiral pin hole so that it is reach drawing requirement;2nd, process chamfered edge groove at the cylindrical place of cylindrical knife shank, fix broach shell and spiral shell pin hole reamer by jackscrew, solve the not enough possibility of transmission moment of torsion;3rd, the utility model simple in construction, manufactures easily, low cost, it is simple to use on a large scale.The utility model is mainly used in reaming combustion turbine exhaustion cylinder spiral pin hole.
Description
Technical field
The utility model relates to a kind of spiral pin hole fraising reamer.
Background technology
There is a spiral pin hole at the cylinder body of combustion turbine exhaustion cylinder, after brill, expansion Ф 38 pin-and-hole, need reamer to ream, due to cylinder body
Internal structure limits, as nearly meeting and Workpiece structure are crossed in distance work pieces process position when the corner attachments of CMT machining center is processed
Interfere, it is necessary to using lengthening knife bar to ream, then reaming with the reamer of standard, the surface quality of pin-and-hole is very poor, does not reaches figure
Paper requires, this is accomplished by us and takes measures to solve this difficult problem.
Utility model content
The purpose of this utility model to solve to utilize existing reamer processing combustion turbine exhaustion cylinder spiral pin hole, the surface of pin-and-hole
Ropy problem, and a kind of combustion turbine exhaustion cylinder spiral pin hole fraising reamer is provided.
A kind of combustion turbine exhaustion cylinder spiral pin hole fraising reamer includes cylindrical guides, cutter hub and cylindrical knife shank, institute
The cylindrical guides stated and M27 thread Pilot hole are 0.01mm~0.02mm matched in clearance, and the cylindrical place of described cylindrical knife shank sets
There is chamfered edge groove.
The utility model advantage: the first, the problem solving machining cell poor rigidity by cylindrical guides positioning, it is ensured that combustion
The machining accuracy in gas-turbine exhaust casing spiral pin hole so that it is reach drawing requirement;2nd, chamfered edge is processed at the cylindrical place of cylindrical knife shank
Groove, fixes broach shell and spiral shell pin hole reamer by jackscrew, solves the not enough possibility of transmission moment of torsion;3rd, the utility model simple in construction,
Manufacture easily, low cost, it is simple to use on a large scale.
Brief description
Fig. 1 is the front view of combustion turbine exhaustion cylinder spiral pin hole fraising reamer described in detailed description of the invention one, in figure 1
Represent cylindrical guides, 2 expression cutter hub in figure, 3 expression cylindrical knife shank in figure;
Fig. 2 is the left view of combustion turbine exhaustion cylinder spiral pin hole fraising reamer described in detailed description of the invention one, 3-1 in figure
Represent chamfered edge groove;
Fig. 3 is the top view of combustion turbine exhaustion cylinder spiral pin hole fraising reamer described in detailed description of the invention one, 1 table in figure
Show cylindrical guides, 2 expression cutter hub in figure, 3 expression cylindrical knife shank in figure;
Fig. 4 is combustion turbine exhaustion cylinder spiral pin hole fraising reamer working state schematic representation, 4 table in figure described in embodiment 1
Showing cylindrical hole broach shell, 5 expressions in figure hold out against screw, 6 expression combustion turbine exhaustion cylinder in figure.
Detailed description of the invention
Detailed description of the invention one: combine Fig. 1 to Fig. 3, present embodiment is the fraising of a kind of combustion turbine exhaustion cylinder spiral pin hole
Including cylindrical guides the 1st, cutter hub 2 and cylindrical knife shank 3 with reamer, described cylindrical guides 1 and M27 thread Pilot hole are
0.01mm~0.02mm matched in clearance, the described cylindrical place of cylindrical knife shank 3 is provided with chamfered edge groove 3-1.
Fig. 1 is the front view of combustion turbine exhaustion cylinder spiral pin hole fraising reamer described in detailed description of the invention one, in figure 1
Represent cylindrical guides, 2 expression cutter hub in figure, 3 expression cylindrical knife shank in figure.
Fig. 2 is the left view of combustion turbine exhaustion cylinder spiral pin hole fraising reamer described in detailed description of the invention one, 3-1 in figure
Represent chamfered edge groove.
Fig. 3 is the top view of combustion turbine exhaustion cylinder spiral pin hole fraising reamer described in detailed description of the invention one, 1 table in figure
Show cylindrical guides, 2 expression cutter hub in figure, 3 expression cylindrical knife shank in figure.
Detailed description of the invention two: the difference from detailed description of the invention one for the present embodiment is: the diameter of described cutter hub 2
For 38mm, a length of 80mm.Other are identical with detailed description of the invention one.
Detailed description of the invention three: the difference from detailed description of the invention one for the present embodiment is: described cylindrical knife shank 3
A diameter of 38mm.Other are identical with detailed description of the invention one.
Detailed description of the invention four: the difference from detailed description of the invention one for the present embodiment is: described chamfered edge groove 3-1
A length of 70mm, width is 16mm.Other are identical with detailed description of the invention one.
Use following verification experimental verification the utility model effect
Embodiment 1: combine Fig. 1 to Fig. 4, present embodiment is a kind of combustion turbine exhaustion cylinder spiral pin hole fraising reamer bag
Including cylindrical guides the 1st, cutter hub 2 and cylindrical knife shank 3, described cylindrical guides 1 and M27 thread Pilot hole are that 0.02mm gap is joined
Closing, the described cylindrical place of cylindrical knife shank 3 is provided with chamfered edge groove 3-1;A diameter of 38mm of described cutter hub 2, a length of 80mm;Institute
A diameter of 38mm of the cylindrical knife shank 3 stated;The a length of 70mm of described chamfered edge groove 3-1, width is 16mm.
Utilize the method in combustion turbine exhaustion cylinder spiral pin hole fraising reamer processing combustion turbine exhaustion cylinder spiral pin hole, specifically
Complete according to the following steps: the first, process M27 thread Pilot hole: first by M27 thread Pilot hole standard at combustion turbine exhaustion cylinder
M27 thread Pilot hole in spiral pin hole is processed at cylinder body;2nd, pin hole processing: first depend at the pin-and-hole in spiral pin hole by Ф 38 pin-and-hole standard
The cylindrical knife shank 3 of spiral shell pin hole reamer, to Ф 37.7, is loaded the cylindrical hole broach shell being connected with lathe corner attachments by secondary brill, expansion
In, and hold out against, with two, the tapped through hole that screw passes through the cylindrical place of cylindrical hole broach shell, hold out against the chamfered edge groove 3-at cylindrical knife shank 3
At 1, make cylindrical hole broach shell fix with spiral shell pin hole reamer, start in the pin-and-hole that spiral shell pin hole reamer is put in Ф 37.7 by lathe, cylinder
Shape guide pillar 1 coordinates prior to thread Pilot hole contact, then carries out fraising processing, until fraising completes, exits spiral shell pin hole reamer, i.e. complete
Become processing combustion turbine exhaustion cylinder spiral pin hole.
Fig. 4 is combustion turbine exhaustion cylinder spiral pin hole fraising reamer working state schematic representation, 4 table in figure described in embodiment 1
Showing cylindrical hole broach shell, 5 expressions in figure hold out against screw, 6 expression combustion turbine exhaustion cylinder in figure.
By detection, surface quality Ra1.6 in processing combustion turbine exhaustion cylinder spiral pin hole, the processing of existing method obtains
Surface quality Ra3.2 in combustion turbine exhaustion cylinder spiral pin hole.
Claims (1)
1. a combustion turbine exhaustion cylinder spiral pin hole fraising reamer, it is characterised in that the fraising of combustion turbine exhaustion cylinder spiral pin hole is used
Reamer includes cylindrical guides (1), cutter hub (2) and cylindrical knife shank (3), described cylindrical guides (1) and M27 thread Pilot hole
For 0.01mm~0.02mm matched in clearance, the described cylindrical place of cylindrical knife shank (3) is provided with chamfered edge groove (3-1).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201620598564.4U CN205673697U (en) | 2016-06-17 | 2016-06-17 | A kind of combustion turbine exhaustion cylinder spiral pin hole fraising reamer |
Applications Claiming Priority (1)
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CN201620598564.4U CN205673697U (en) | 2016-06-17 | 2016-06-17 | A kind of combustion turbine exhaustion cylinder spiral pin hole fraising reamer |
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CN205673697U true CN205673697U (en) | 2016-11-09 |
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CN201620598564.4U Active CN205673697U (en) | 2016-06-17 | 2016-06-17 | A kind of combustion turbine exhaustion cylinder spiral pin hole fraising reamer |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106001771A (en) * | 2016-06-17 | 2016-10-12 | 哈尔滨汽轮机厂有限责任公司 | Screw pin hole reamer and method for machining screw pin hole of exhaust cylinder of gas turbine by means of screw pin hole reamer |
-
2016
- 2016-06-17 CN CN201620598564.4U patent/CN205673697U/en active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106001771A (en) * | 2016-06-17 | 2016-10-12 | 哈尔滨汽轮机厂有限责任公司 | Screw pin hole reamer and method for machining screw pin hole of exhaust cylinder of gas turbine by means of screw pin hole reamer |
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