CN104439918A - Rolling machining method of sealing tooth section of exhaust connecting pipe - Google Patents
Rolling machining method of sealing tooth section of exhaust connecting pipe Download PDFInfo
- Publication number
- CN104439918A CN104439918A CN201410568891.0A CN201410568891A CN104439918A CN 104439918 A CN104439918 A CN 104439918A CN 201410568891 A CN201410568891 A CN 201410568891A CN 104439918 A CN104439918 A CN 104439918A
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- Prior art keywords
- tooth lobe
- rolling
- rotating shaft
- lobe
- roller
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P9/00—Treating or finishing surfaces mechanically, with or without calibrating, primarily to resist wear or impact, e.g. smoothing or roughening turbine blades or bearings; Features of such surfaces not otherwise provided for, their treatment being unspecified
- B23P9/02—Treating or finishing by applying pressure, e.g. knurling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
Abstract
Provided is a rolling machining method of a sealing tooth section of an exhaust connecting pipe. The method comprises the steps that a sheet tooth section is machined; an installation groove for the tooth section is machined in the end face of the connecting pipe; the tooth section is machined to be of a circular arc shape with the radian approximate to that of an integrally-formed circular hole of the sealing tooth section; the tooth section is placed into the installation groove, and three points are uniformly and fixedly riveted on the rolling side to prevent the tooth section from moving; a rolling tool is installed on a vertical lathe, and the rolling machining portion of the connecting pipe is continuously rolled through the rolling tool to deform to extrude the tooth section; a correcting tool is installed on the vertical lathe, and correction is carried out on the inner side or the outer side of the tooth section through the correcting tool; finish turning is carried out on the tooth section. Through the steps, machining of the sealing tooth section of the exhaust connecting pipe is achieved, implementation is convenient, the operation process is simplified, and especially, the requirement for the machining precision of equipment is lowered.
Description
Technical field
The present invention relates to the hermetically-sealed construction manufacture field of a kind of combustion turbine exhaustion adapter, particularly vent connection sealing tooth lobe rolling and processing method.The present invention is also applicable to that other are similar, and end face of flange is processed the borehole structure combined by multi-disc flake structure.
Background technology
Vent connection is one of critical component of gas turbine, exhaust apparatus forward flange end face has the tooth of sealing shown in Fig. 1 lobe.Sealing tooth lobe, as shown in Figure 3, be stainless steel 1Cr13 or similar material, thickness only has 1.5 ~ 2.5mm, and be arranged on vent connection inner flange end face groove after bending, adjacent two panels gap is 0.25 ± 0.1mm, forms through rivet clasp aft-loaded airfoil.Its endoporus has higher required precision, and size tolerance requirements is ± 0.12mm, and circle is beated for 0.12mm.Because tooth lobe wall is thin and be stainless steel material and be spliced into by multistage, riveting fixing type structure, do not have rigidity and be intermittent-cutting, difficulty of processing is very big.Do not find with reference to product at present, and relevant technological method for processing.The inner flange diameter of adapter is generally close to 2000mm, and the every leaf length of tooth lobe is 115mm, then an exhaust apparatus needs about 50 tooth lobes, if hit with continuous riveting, workload is too large, and the soundness of tooth lobe is inadequate, and unsteady tooth lobe directly affects follow-up turnery processing.Adapter need machine on vertical car, if with rolling depression method, general rolling wheel can not be arranged on the tangential direction of tooth lobe cylindrical; Namely allow to roll extrusion, during general roller compression, tooth lobe also can tilt to non-rolling surface.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of vent connection sealing tooth lobe rolling and processing method, be easy to realize, and working (machining) efficiency is higher.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of vent connection sealing tooth lobe rolling and processing method, comprises the following steps:
One, the tooth lobe of sheet is processed;
Two, on adapter end face, process the mounting groove of tooth lobe;
Three, tooth lobe is processed into circular arc, with the radian of the integrally formed circular hole close to sealing tooth lobe;
Four, loaded in mounting groove by tooth lobe, in roll extrusion side, even rivet clasp three point, prevents tooth lobe from moving;
Five, rolling tools are arranged on vertical lathe, with the rolling and processing place of the continuous roll extrusion adapter of rolling tools, make rolling and processing place be out of shape jam-packed tooth lobe;
Six, aligning tool is arranged on vertical lathe, corrects in the inner side of tooth lobe or outside with aligning tool;
Seven, finish turning tooth lobe, makes the integrally formed endoporus of tooth lobe reach requirement;
The machining of gas adapter sealing tooth lobe is realized by above-mentioned steps.
In preferred scheme, in step one, inside tooth lobe, carry out preprocessing, reserved allowance 0.1 ~ 0.3mm.
The structure of described rolling tools is: the termination of clamping part is provided with shaft seat, roller is flexibly connected with shaft seat by rotating shaft, one end of rotating shaft is provided with roller, the outside of roller is provided with inclined-plane, inner side is facing directly for close tooth lobe, the edge of roller is provided with projecting part, adds man-hour, with the rolling and processing place of the continuous roll extrusion adapter of projecting part.
In preferred scheme, the other end of rotating shaft is provided with screw thread, and rotating shaft is connected with nut by screw thread, can not move axially, between rotating shaft and shaft seat, be provided with axle sleeve to make roller rotate.
The structure of described aligning tool is: correct rotating shaft and be flexibly connected with aligning tool shank, the termination correcting rotating shaft is installed with correction roller, correcting the calibration edge of roller is a flat segments, adds man-hour, corrects against the inner side of tooth lobe or outside with calibration edge.
In preferred scheme, be provided with two groups of angular contact ball bearings between described correction rotating shaft and aligning tool shank, the other end correcting rotating shaft relative with correcting roller is provided with thread segment, corrects rotating shaft and is connected with clamp nut by thread segment.
A kind of vent connection sealing tooth lobe rolling and processing method provided by the invention, by adopting above-mentioned step, simplifying operational sequence, especially reducing the requirement on machining accuracy for equipment.In preferred scheme, carry out preprocessing to inside tooth lobe, reduce reserved allowance.Thus size Control is easy when follow-up finish turning, be also convenient to processing.Method of the present invention solves a processing difficult problem for adapter sealing tooth lobe.Also go for similar large-sized flange end face to install in the structural member processing of multiple tooth lobe formation high accuracy circular hole.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1 is the overall structure schematic perspective view taken in the present invention.
Fig. 2 is the close-up schematic view that in the present invention, tooth lobe position is installed in adapter.
Fig. 3 is the front view of tooth lobe in the present invention.
Fig. 4 is the close-up schematic view at A place in Fig. 2.
Fig. 5 is the structural representation of rolling tools when rolling and processing in the present invention.
Fig. 6 is the structural representation of aligning tool when correcting outside tooth lobe in the present invention.
Fig. 7 is the structural representation of aligning tool when correcting inside tooth lobe in the present invention.
In figure: tooth lobe 1, stage portion 11, stopper slot 12, adapter 2, mounting groove 21, rolling and processing place B, rolling tools 3, roller 30, inclined-plane 31, faces 32 directly, projecting part 33, shaft seat 34, axle sleeve 35, nut 36, rotating shaft 37, clamping part 38, aligning tool 4, corrects roller 40, calibration edge 41, aligning tool shank 42, angular contact ball bearing 43, corrects rotating shaft 44, clamp nut 45.
Detailed description of the invention
As in Fig. 1 ~ 7, a kind of vent connection sealing tooth lobe rolling and processing method, comprises the following steps:
One, the tooth lobe 1 of sheet is processed; As shown in fig. 1, tooth lobe 1 length after processing is 115mm to tooth lobe 1 after processing, is processed with the stopper slot 12 of circular arc thereon, so that mounting groove 21 can be combined closely with tooth lobe 1 after being out of shape.In preferred scheme, carry out pre-machining to inside tooth lobe 1, reserved allowance 0.1 ~ 0.3mm.Reserved allowance in this example is 0.2mm, and forms a stage inside tooth lobe 1.
After preprocessing, tooth lobe is thinning, becomes easy when making tooth lobe be bent into circular arc, can obtain the higher endoporus of circularity after assembling tooth lobe.And allowance reduces, after tooth lobe is arranged on adapter above, easy finish turning.
Two, on adapter 2 end face, process the mounting groove 21 of tooth lobe 1; Code requirement size and tolerance are 2.53 ± 0.06mm; Machining tolerance must be tightened as 2.5+0.05 0mm.Select SANDVIK CorCut XS knife bar to fill width 0.098 inch of grooving cutter, processing dimension is easy to reach.Because mounting groove 21 coordinates closely with tooth lobe, thus the tooth lobe that can reduce in rolling process tilts.
Three, tooth lobe 1 is processed into the circular arc matched with mounting groove 21, with the radian of the integrally formed circular hole close to sealing tooth lobe; Bend arc machining to complete on rolloff roller, or bend on bench vice.
Four, load in mounting groove 21 by tooth lobe 1, in roll extrusion side, even rivet clasp three point, prevents tooth lobe 1 from moving; Roll extrusion side in this example is positioned at the outside of adapter 2.But it is also feasible for according to operating mode, inner side being located in roll extrusion side.
Five, be arranged on vertical lathe by rolling tools 3, with the rolling and processing place B of the continuous roll extrusion adapter 2 of rolling tools 3, i.e. the outside diameter of tooth lobe 1, makes rolling and processing place B be out of shape jam-packed tooth lobe 1;
The structure of described rolling tools 3 is: the termination of clamping part 38 is provided with shaft seat 34, roller 30 is flexibly connected with shaft seat 34 by rotating shaft 37, one end of rotating shaft 37 is provided with roller 30, the outside of roller 30 is provided with inclined-plane 31, and the inclination angle on inclined-plane 31 is 15 ~ 25 °, inner side be near tooth lobe 1 face 32 directly, face 32 directly perpendicular to rolling surface, face the roughness requirements Ra0.8 in 32 faces, place directly, during roll extrusion, tooth lobe is close in this face, plays righting tooth lobe and prevents crooked effect.
The edge of roller 30 is provided with projecting part 33, adds man-hour, with the rolling and processing place B of the continuous roll extrusion adapter 2 of projecting part 33.The fillet of roller projecting part 33 is R1.5 ~ R3mm, and projecting part 33 makes rolling and processing place B be out of shape jam-packed tooth lobe.Rolling tools clamping part 38 is processed into cylinder, increases clamping body, and rolling tools can 360 degree rotations, and guarantee roller roll extrusion direction, along tooth lobe cylindrical tangential direction, solves roller deflection issues in extrusion process.
In preferred scheme, the other end of rotating shaft 37 is provided with screw thread, and rotating shaft 37 is connected with nut 36 by screw thread, can not move axially, be provided with axle sleeve 35 between rotating shaft 37 and shaft seat 34 to make roller 30 rotate.Adopt the structure of axle sleeve, compared with bearing, gap is less, and precision is higher.
Six, aligning tool 4 is arranged on vertical lathe, corrects in the inner side of tooth lobe or outside with aligning tool 4;
The structure of described aligning tool 4 is: correct rotating shaft 44 and be flexibly connected with aligning tool shank 42, the termination correcting rotating shaft 44 is installed with and corrects roller 40, correcting the calibration edge 41 of roller 40 is a flat segments, adds man-hour, corrects against the inner side of tooth lobe or outside with calibration edge 41.Correcting roller 40 is brass material, rolls school continuously and plays the effect of integrally formed for tooth lobe circular hole school circle, also have certain effect correcting crooked tooth lobe simultaneously by roller.
In preferred scheme, be provided with two groups of angular contact ball bearings 43 between described correction rotating shaft 44 and aligning tool shank 42, the other end correcting rotating shaft 44 relative with correcting roller 40 is provided with thread segment, corrects rotating shaft 44 and is connected with clamp nut 45 by thread segment.
Seven, finish turning tooth lobe, correcting on the round as a ball basis of roller 40, makes the integrally formed endoporus of tooth lobe reach the final requirement of drawing.Because tooth lobe adds man-hour in advance, inside tooth lobe, one side puts allowance 0.1 ~ 0.2mm, selects sharp lathe tool once to get final product car to finished product.
The machining of gas adapter sealing tooth lobe is realized by above-mentioned steps.
Claims (6)
1. a vent connection sealing tooth lobe rolling and processing method, is characterized in that comprising the following steps:
One, the tooth lobe (1) of sheet is processed;
Two, on adapter (2) end face, process the mounting groove (21) of tooth lobe (1);
Three, tooth lobe (1) is processed into circular arc, with the radian of the integrally formed circular hole close to sealing tooth lobe;
Four, load in mounting groove (21) by tooth lobe (1), in roll extrusion side, even rivet clasp three point, prevents tooth lobe (1) mobile;
Five, rolling tools (3) are arranged on vertical lathe, with the rolling and processing place (B) of continuous roll extrusion adapter (2) of rolling tools (3), make rolling and processing place (B) be out of shape jam-packed tooth lobe (1);
Six, aligning tool (4) is arranged on vertical lathe, corrects in the inner side of tooth lobe or outside with aligning tool (4);
Seven, finish turning tooth lobe, makes the integrally formed endoporus of tooth lobe reach requirement;
The machining of gas adapter sealing tooth lobe is realized by above-mentioned steps.
2. a kind of vent connection sealing tooth lobe rolling and processing method according to claim 1, it is characterized in that: in step one, preprocessing is carried out in tooth lobe (1) inner side, reserved allowance 0.1 ~ 0.3mm.
3. a kind of vent connection sealing tooth lobe rolling and processing method according to claim 1, it is characterized in that: the structure of described rolling tools (3) is: the termination of clamping part (38) is provided with shaft seat (34), roller (30) is flexibly connected with shaft seat (34) by rotating shaft (37), one end of rotating shaft (37) is provided with roller (30), the outside of roller (30) is provided with inclined-plane (31), inner side for near tooth lobe (1) face (32) directly, the edge of roller (30) is provided with projecting part (33), add man-hour, with the rolling and processing place (B) of continuous roll extrusion adapter (2) of projecting part (33).
4. a kind of vent connection sealing tooth lobe rolling and processing method according to claim 3, it is characterized in that: the other end of rotating shaft (37) is provided with screw thread, rotating shaft (37) is connected with nut (36) by screw thread, can not move axially to make roller (30) rotate, between rotating shaft (37) and shaft seat (34), be provided with axle sleeve (35).
5. a kind of vent connection sealing tooth lobe rolling and processing method according to claim 1, it is characterized in that: the structure of described aligning tool (4) is: correct rotating shaft (44) and be flexibly connected with aligning tool shank (42), the termination correcting rotating shaft (44) is installed with and corrects roller (40), the calibration edge (41) correcting roller (40) is a flat segments, add man-hour, correct against the inner side of tooth lobe or outside with calibration edge (41).
6. a kind of vent connection sealing tooth lobe rolling and processing method according to claim 5, it is characterized in that: between described correction rotating shaft (44) and aligning tool shank (42), be provided with two groups of angular contact ball bearings (43), the other end correcting rotating shaft (44) relative with correcting roller (40) is provided with thread segment, corrects rotating shaft (44) and is connected with clamp nut (45) by thread segment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410568891.0A CN104439918B (en) | 2014-10-23 | 2014-10-23 | Rolling machining method of sealing tooth section of exhaust connecting pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410568891.0A CN104439918B (en) | 2014-10-23 | 2014-10-23 | Rolling machining method of sealing tooth section of exhaust connecting pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104439918A true CN104439918A (en) | 2015-03-25 |
| CN104439918B CN104439918B (en) | 2017-02-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410568891.0A Active CN104439918B (en) | 2014-10-23 | 2014-10-23 | Rolling machining method of sealing tooth section of exhaust connecting pipe |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106514126A (en) * | 2017-01-10 | 2017-03-22 | 江苏南方轴承股份有限公司 | Discontinuous end face knurling or hobbing device |
| CN107052708A (en) * | 2016-11-24 | 2017-08-18 | 申革英 | Extrusion process production technology from a kind of trisection valve tape spool to the small sircle hole part of internal tooth |
| CN115532985A (en) * | 2022-10-20 | 2022-12-30 | 天王电子（深圳）有限公司 | Foot correcting device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3831627A1 (en) * | 1988-09-17 | 1990-03-22 | Bursig Ernest Naklo Sl | Strengthening of gears |
| JPH0425321A (en) * | 1990-05-18 | 1992-01-29 | Nissan Motor Co Ltd | Clutch gear manufacturing method |
| CN1320513A (en) * | 2000-04-21 | 2001-11-07 | 日东电工株式会社 | Roller set of wheel press and method for making lamina |
| CN102390102A (en) * | 2011-10-22 | 2012-03-28 | 宁波科光机电有限公司 | Plastic hook piece rolling mold |
| CN102886662A (en) * | 2012-09-29 | 2013-01-23 | 汪金芳 | Manufacturing process of assembled V-type belt wheel |
-
2014
- 2014-10-23 CN CN201410568891.0A patent/CN104439918B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3831627A1 (en) * | 1988-09-17 | 1990-03-22 | Bursig Ernest Naklo Sl | Strengthening of gears |
| JPH0425321A (en) * | 1990-05-18 | 1992-01-29 | Nissan Motor Co Ltd | Clutch gear manufacturing method |
| CN1320513A (en) * | 2000-04-21 | 2001-11-07 | 日东电工株式会社 | Roller set of wheel press and method for making lamina |
| CN102390102A (en) * | 2011-10-22 | 2012-03-28 | 宁波科光机电有限公司 | Plastic hook piece rolling mold |
| CN102886662A (en) * | 2012-09-29 | 2013-01-23 | 汪金芳 | Manufacturing process of assembled V-type belt wheel |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107052708A (en) * | 2016-11-24 | 2017-08-18 | 申革英 | Extrusion process production technology from a kind of trisection valve tape spool to the small sircle hole part of internal tooth |
| CN106514126A (en) * | 2017-01-10 | 2017-03-22 | 江苏南方轴承股份有限公司 | Discontinuous end face knurling or hobbing device |
| CN115532985A (en) * | 2022-10-20 | 2022-12-30 | 天王电子（深圳）有限公司 | Foot correcting device |
| CN115532985B (en) * | 2022-10-20 | 2023-06-02 | 天王电子（深圳）有限公司 | Foot calibrating device |
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| Publication number | Publication date |
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| CN104439918B (en) | 2017-02-15 |
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