CN109128893A - A kind of exhaust pipe axial screw hole machined fixture and its processing method - Google Patents
A kind of exhaust pipe axial screw hole machined fixture and its processing method Download PDFInfo
- Publication number
- CN109128893A CN109128893A CN201710498479.XA CN201710498479A CN109128893A CN 109128893 A CN109128893 A CN 109128893A CN 201710498479 A CN201710498479 A CN 201710498479A CN 109128893 A CN109128893 A CN 109128893A
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- China
- Prior art keywords
- exhaust pipe
- screw hole
- annular convex
- convex platform
- mounting plate
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- Pending
Links
- 238000003672 processing method Methods 0.000 title claims description 5
- 238000000034 method Methods 0.000 claims abstract description 28
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 claims description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 7
- 239000004411 aluminium Substances 0.000 claims description 7
- 238000003754 machining Methods 0.000 claims description 7
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
Classifications
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Exhaust Silencers (AREA)
Abstract
The present invention relates to a kind of exhaust pipe axial screw hole machined fixture and axial screw hole forming methods, the exhaust pipe axial screw hole machined fixture includes mounting plate and fishbolt, annular convex platform is fixedly installed on the mounting plate, the internal diameter clearance fit of the outer diameter of the annular convex platform and exhaust pipe pinching end to be processed, when so that the pinching end of the exhaust pipe being inserted in annular convex platform, the inner wall of the exhaust pipe is supported by the outer wall of the annular convex platform；Multiple perforative positioning screw holes are set on the mounting plate, each positioning screw hole is placed in the outside of the annular convex platform, and the spacing between each positioning screw hole and annular convex platform outer wall is adapted with exhaust pipe end thickness, each fishbolt passes through the positioning screw hole and is arranged and is threadedly engaged with the positioning screw hole, to be clamped positioning to the exhaust pipe being placed between fishbolt and annular convex platform.
Description
Technical field
The present invention relates to aircraft engine parts processing technique field, especially a kind of exhaust pipe axial screw hole machined folder
Tool and axial screw hole forming method.
Background technique
Certain exhaust pipe part belongs to thin-wall stamping part, needs to process multiple threaded holes, each spiral shell along axial on its end face
The position degree in hole, dimension precision requirement are high；Existing technology is drilled using machining center, exhaust pipe axial screw to be processed
The one end in hole is referred to as to process end, reinforces integral rigidity although using inner cavity and filling wax, existing fixture is adopted at processing end
With positioning is radially clamped, during compressing positioning, slight deformation can occur part for the end face for processing end, such
The threaded hole processed under state can generate rebound after unloading fixture, and the position degree of threaded hole is caused to change, influence with
Connection between other component.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of structures simply, avoids radially deformed exhaust pipe axial screw
Hole machined fixture and axial screw hole forming method.
In order to solve the above technical problems, exhaust pipe axial screw hole machined fixture provided by the invention, comprising: mounting plate and
Annular convex platform is fixedly installed on the mounting plate in fishbolt, the outer diameter of the annular convex platform and exhaust pipe pinching end to be processed
Internal diameter clearance fit, when so that the pinching end of the exhaust pipe being inserted in annular convex platform, by the outer wall of the annular convex platform to described
The inner wall of exhaust pipe is supported；Multiple perforative positioning screw holes are set on the mounting plate, and each positioning screw hole is placed in the ring
The outside of shape boss, and the spacing between each positioning screw hole and annular convex platform outer wall is adapted with exhaust pipe end thickness, it is each to press from both sides
Tight bolt passes through the positioning screw hole and is arranged and is threadedly engaged with the positioning screw hole, with to being placed in fishbolt and annular convex platform
Between exhaust pipe be clamped positioning；Determine in use, the pinching end of exhaust pipe is clamped by annular convex platform and fishbolt
Position, the equipment for processing axial screw hole processes the end face at exhaust pipe processing end, so that processing end is in process
Radial direction by external force, does not avoid the radial position degree for generating influence of crust deformation axial direction screw hole, improves machining accuracy.
Further, the fishbolt includes end cap and screw rod, and tail end and the end cap of screw rod are fixedly linked, the front end of screw rod
For light bar segment, middle part is the thread segment matched with positioning screw hole, and the length of the thread segment is not more than the thickness of mounting plate, keeps away
Exempt from thread segment across mounting plate, the outer surface of exhaust pipe is scratched when tightening.
Further, the positioning screw hole is 6, is evenly arranged on the same circumference on the outside of annular convex platform, so that exhaust pipe quilt
Uniform force when clamping.
Further, the mounting plate is aluminium sheet, and annular convex platform is aluminium ring, and light weight, hardness is low, and it is right in use process to reduce
The scuffing of exhaust pipe, the aluminium ring with aluminium sheet is welded is fixed, it is easy to process, it is at low cost.
A kind of processing method of exhaust pipe axial direction screw hole, includes the following steps:
A, by the pinching end of the annular convex platform insertion exhaust pipe of mounting plate, so that annular convex platform forms branch to the inner wall of exhaust pipe
Support；Each fishbolt is screwed into corresponding positioning screw hole, so that the light bar segment of fishbolt is close to the outer wall setting of exhaust pipe, with
Fix annular convex platform and fishbolt to the pinching end of exhaust pipe.
B, mounting plate is fixed on the horizontal slide rail of machining tool, so that the axial direction of exhaust pipe is horizontally disposed, needs to add
The drill bit that the exhaust pipe of work axial direction screw hole processes end end face towards machining tool is arranged, and the axial screw hole processed as needed
Position adjusts bit location, so that drill bit is directed at axial screw hole present position.
C, mounting plate is moved horizontally so that exhaust pipe is mobile to drill bit, starting drill bit is corresponding in the end face at exhaust pipe processing end
The thread Pilot hole of positioning screw hole is processed on position.
D, fishbolt is unloaded, the pinching end of exhaust pipe is separated with mounting plate；It is processed on thread Pilot hole using screw tap
Shaft is to screw hole.
It needs when the both ends of exhaust pipe all process axial screw hole, pinching end, processing end is exchanged and repeated the above steps i.e.
It can.
The technical effect of invention: (1) of the invention exhaust pipe axial screw hole machined fixture, it is compared with the existing technology, right
In the process of exhaust pipe, it is clamped without the processing end to exhaust pipe, so that radially there is no deformation when processing, and
It is only axially to be squeezed when processing, avoids exhaust pipe rebound after processing is completed, the processing especially suitable for thin-wall stamping part；
(2) exhaust pipe is positioned using annular convex platform and fishbolt, is easily assembled, it is firm to connect, by mounting plate pair when processing
The end face of exhaust pipe is supported, uniform force；(3) mounting plate uses aluminium sheet, and annular convex platform uses aluminium ring, light weight, hardness
It is low, the scuffing in use process to exhaust pipe is reduced, and easy to process；(4) screw front end of fishbolt is set as light bar segment,
Place the outer surface for scratching exhaust pipe.
Detailed description of the invention
Invention is further described in detail with reference to the accompanying drawings of the specification:
Fig. 1 is the structural schematic diagram of exhaust pipe axial screw hole machined fixture of the invention；
Fig. 2 is the schematic diagram of the section structure of exhaust pipe axial screw hole machined fixture of the invention；
Fig. 3 is the structural schematic diagram of fishbolt of the invention.
In figure: mounting plate 1, mounting hole 11, positioning screw hole 12, annular convex platform 2, end cap 3, screw rod 4, thread segment 41, polished rod
Section 42.
Specific embodiment
Certain exhaust pipe for engine of embodiment 1 needs process uniformly distributed axial screw hole respectively in both ends of the surface, have been
At above-mentioned processing, a kind of fixture is specially designed；For convenience of narration, exhaust pipe one end to be processed is referred to as to process end, the other end
For clamping therefore referred to as pinching end；As shown in Figure 1 to Figure 2, the exhaust pipe axial screw hole machined fixture of the present embodiment, packet
Mounting plate 1 and fishbolt are included, annular convex platform 2, the outer diameter of the annular convex platform 2 and to be processed are fixedly installed on the mounting plate 1
The internal diameter clearance fit of exhaust pipe pinching end, the height of the annular convex platform are set as 5mm, so that the pinching end of exhaust pipe is inserted in ring
When in shape boss 2, the inner wall of exhaust pipe is supported by the outer wall of the annular convex platform 2；Setting 6 is perforative on mounting plate 1
Positioning screw hole 12, each positioning screw hole 12 is evenly arranged on the same circumference in 2 outside of annular convex platform, and each positioning screw hole 12 and convex annular
Spacing between 2 outer wall of platform is adapted with the thickness of exhaust pipe pinching end, each fishbolt pass through positioning screw hole 12 be arranged and with
Positioning screw hole 12 is threadedly engaged, and it is fixed to be clamped with the pinching end to the exhaust pipe being placed between fishbolt and annular convex platform 2
Position；Fishbolt includes end cap 3 and screw rod 4, and tail end and the end cap 3 of screw rod 4 are fixedly linked, and the front end of screw rod 4 is light bar segment 42,
Middle part is the thread segment 41 matched with positioning screw hole, and the length of thread segment 41 is equal to the thickness of mounting plate 1, so that screw rod 4
Thread segment 41 is matched with positioning screw hole 12, and light bar segment 42 may pass through the setting of mounting plate 1.Mounting plate 1 is aluminium sheet, annular convex platform 2
For aluminium ring, light weight, hardness is low, reduces scuffing to exhaust pipe in use process, the aluminium ring with aluminium sheet is welded is fixed,
It is easy to process, it is at low cost.
In use, the pinching end of exhaust pipe is clamped positioning by annular convex platform 2 and fishbolt, for processing axial screw
The equipment in hole processes the end face at exhaust pipe processing end, so that processing end is radial not by external force in process, avoids
The radial position degree for generating influence of crust deformation axial direction screw hole, improves machining accuracy.
Embodiment 2
A kind of processing method of exhaust pipe axial direction screw hole, includes the following steps:
A, the annular convex platform 2 of mounting plate 1 is inserted into the pinching end of exhaust pipe, so that annular convex platform 2 forms the inner wall of exhaust pipe
Support；Each fishbolt is screwed into corresponding positioning screw hole 12, so that the outer wall that the light bar segment of fishbolt is close to exhaust pipe is set
It sets, so that annular convex platform 2 and fishbolt fix the pinching end of exhaust pipe.
B, mounting hole 11 is arranged in the quadrangle of mounting plate 1, and mounting plate 1 is passed through mounting hole 11 using bolt and is fixed on processing machine
On the horizontal slide rail of bed, so that the axial direction of exhaust pipe is horizontally disposed, need to process the exhaust pipe processing end end face court of axial screw hole
It is arranged to the drill bit of machining tool, and the position for the axial screw hole processed as needed adjusts bit location, so that drill bit is aligned
Axial screw hole present position.
C, mounting plate 1 is moved horizontally so that exhaust pipe is mobile to drill bit, and starting drill bit processes the end face phase at end in exhaust pipe
Answer the thread Pilot hole that positioning screw hole is processed on position.
D, fishbolt is unloaded, the pinching end of exhaust pipe is separated with mounting plate 1；It is processed on thread Pilot hole using screw tap
Shaft is to screw hole.
Multiple axial screw holes can be processed on the end face of exhaust pipe by repeating the above steps；Need two in exhaust pipe
When end face all processes axial screw hole, it is only necessary to after processing is completed exchange processing end and pinching end an end face.
Obviously, the above embodiment is merely an example for clearly illustrating the present invention, and is not to of the invention
The restriction of embodiment.For those of ordinary skill in the art, it can also be made on the basis of the above description
Its various forms of variation or variation.There is no necessity and possibility to exhaust all the enbodiments.And these belong to this hair
Bright spiritual changes and variations that derived from are still in the protection scope of this invention.
Claims (5)
1. a kind of exhaust pipe axial screw hole machined fixture characterized by comprising mounting plate and fishbolt, the mounting plate
Upper fixed setting annular convex platform, the internal diameter clearance fit of the outer diameter of the annular convex platform and exhaust pipe pinching end to be processed, so that
When the pinching end of the exhaust pipe is inserted in annular convex platform, the inner wall of the exhaust pipe is propped up by the outer wall of the annular convex platform
Support；Multiple perforative positioning screw holes are set on the mounting plate, and each positioning screw hole is placed in the outside of the annular convex platform, and each fixed
Spacing between position screw hole and annular convex platform outer wall is adapted with exhaust pipe end thickness, and each fishbolt passes through the positioning spiral shell
Hole is arranged and is threadedly engaged with the positioning screw hole, to be clamped to the exhaust pipe being placed between fishbolt and annular convex platform
Positioning.
2. exhaust pipe axial screw hole machined fixture according to claim 1, which is characterized in that the fishbolt includes
End cap and screw rod, tail end and the end cap of screw rod are fixedly linked, and the front end of screw rod is light bar segment, and middle part is to match with positioning screw hole
Thread segment, the length of the thread segment is not more than the thickness of mounting plate.
3. exhaust pipe axial screw hole machined fixture according to claim 2, which is characterized in that the positioning screw hole is 6
It is a, it is evenly arranged on the same circumference on the outside of annular convex platform.
4. exhaust pipe axial screw hole machined fixture according to claim 3, which is characterized in that the mounting plate is aluminium
Plate, annular convex platform are aluminium ring, the aluminium ring with aluminium sheet is welded is fixed.
5. a kind of processing method of exhaust pipe axial direction screw hole, which comprises the steps of:
A, by the pinching end of the annular convex platform insertion exhaust pipe of mounting plate, so that annular convex platform forms branch to the inner wall of exhaust pipe
Support；Each fishbolt is screwed into corresponding positioning screw hole, so that the light bar segment of fishbolt is close to the outer wall setting of exhaust pipe, with
Fix annular convex platform and fishbolt to the pinching end of exhaust pipe；
B, mounting plate is fixed on the horizontal slide rail of machining tool, so that the axial direction of exhaust pipe is horizontally disposed, needs to process axis
The drill bit for processing end end face towards machining tool to the exhaust pipe of screw hole is arranged, and the position for the axial screw hole processed as needed
Bit location is adjusted, so that drill bit is directed at axial screw hole present position；
C, mounting plate is moved horizontally so that exhaust pipe is mobile to drill bit, starting drill bit processes the end face corresponding position at end in exhaust pipe
On process the thread Pilot hole of positioning screw hole；
D, fishbolt is unloaded, the pinching end of exhaust pipe is separated with mounting plate；Shaft is processed on thread Pilot hole using screw tap
To screw hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710498479.XA CN109128893A (en) | 2017-06-27 | 2017-06-27 | A kind of exhaust pipe axial screw hole machined fixture and its processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710498479.XA CN109128893A (en) | 2017-06-27 | 2017-06-27 | A kind of exhaust pipe axial screw hole machined fixture and its processing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109128893A true CN109128893A (en) | 2019-01-04 |
Family
ID=64804815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710498479.XA Pending CN109128893A (en) | 2017-06-27 | 2017-06-27 | A kind of exhaust pipe axial screw hole machined fixture and its processing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109128893A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101596625A (en) * | 2009-07-03 | 2009-12-09 | 南车长江车辆有限公司 | Processing method of car axle head screwed hole |
| CN202780141U (en) * | 2012-08-30 | 2013-03-13 | 哈尔滨汽轮机厂有限责任公司 | Cutting clamp of combustion compression loop type hole |
| CN103028960A (en) * | 2012-11-30 | 2013-04-10 | 苏州市意可机电有限公司 | Machining tool of circular smooth tube |
| CN203092178U (en) * | 2013-01-29 | 2013-07-31 | 昌辉汽车电器（黄山）股份公司 | Drilling clamp |
| CN103659307A (en) * | 2012-09-04 | 2014-03-26 | 江苏中昊船用阀门制造有限公司 | Locating and turning fixture for large end face and shaft hole of valve deck of stop valve |
| CN204209399U (en) * | 2014-09-30 | 2015-03-18 | 金华大众齿轮有限公司 | A kind of tapping rig |
| CN204524335U (en) * | 2015-03-11 | 2015-08-05 | 聊城万合工业制造有限公司 | The fixture used during a kind of lathe boring |
| CN204748094U (en) * | 2015-06-08 | 2015-11-11 | 重庆宝爵机械设备有限公司 | Novel single barrel casing pipe trompil anchor clamps |
| CN205888632U (en) * | 2016-08-15 | 2017-01-18 | 强龙科技（苏州）有限公司 | CNC processing thin wall cavity spare special fixture |
| CN206883235U (en) * | 2017-06-27 | 2018-01-16 | 中国航发常州兰翔机械有限责任公司 | A kind of blast pipe axial screw hole machined fixture |
-
2017
- 2017-06-27 CN CN201710498479.XA patent/CN109128893A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101596625A (en) * | 2009-07-03 | 2009-12-09 | 南车长江车辆有限公司 | Processing method of car axle head screwed hole |
| CN202780141U (en) * | 2012-08-30 | 2013-03-13 | 哈尔滨汽轮机厂有限责任公司 | Cutting clamp of combustion compression loop type hole |
| CN103659307A (en) * | 2012-09-04 | 2014-03-26 | 江苏中昊船用阀门制造有限公司 | Locating and turning fixture for large end face and shaft hole of valve deck of stop valve |
| CN103028960A (en) * | 2012-11-30 | 2013-04-10 | 苏州市意可机电有限公司 | Machining tool of circular smooth tube |
| CN203092178U (en) * | 2013-01-29 | 2013-07-31 | 昌辉汽车电器（黄山）股份公司 | Drilling clamp |
| CN204209399U (en) * | 2014-09-30 | 2015-03-18 | 金华大众齿轮有限公司 | A kind of tapping rig |
| CN204524335U (en) * | 2015-03-11 | 2015-08-05 | 聊城万合工业制造有限公司 | The fixture used during a kind of lathe boring |
| CN204748094U (en) * | 2015-06-08 | 2015-11-11 | 重庆宝爵机械设备有限公司 | Novel single barrel casing pipe trompil anchor clamps |
| CN205888632U (en) * | 2016-08-15 | 2017-01-18 | 强龙科技（苏州）有限公司 | CNC processing thin wall cavity spare special fixture |
| CN206883235U (en) * | 2017-06-27 | 2018-01-16 | 中国航发常州兰翔机械有限责任公司 | A kind of blast pipe axial screw hole machined fixture |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190104 |
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| RJ01 | Rejection of invention patent application after publication |