CN209256350U - A kind of auxiliary mould fixture for number milling thin-wall bush - Google Patents
A kind of auxiliary mould fixture for number milling thin-wall bush Download PDFInfo
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- CN209256350U CN209256350U CN201822053241.9U CN201822053241U CN209256350U CN 209256350 U CN209256350 U CN 209256350U CN 201822053241 U CN201822053241 U CN 201822053241U CN 209256350 U CN209256350 U CN 209256350U
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- wall bush
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Abstract
The utility model relates to a kind of auxiliary mould fixtures for number milling thin-wall bush, and belonging to aviation machine precision manufactureing manufacture field, it includes inner cover body and outer cover body；Inner cover body external cylindrical surface is fitted closely with thin-wall bush inner cylinder face, and inner cover body is provided with technology hole and bolt clamping hole, for once positioning multiple clamping；Outer cover body inner cylinder face is fitted closely with thin-wall bush external cylindrical surface, for when link block, providing exterior protection around milling removal part, avoiding in patch process bushing thin-walled springing back and forth, part is hurt in milling.The utility model is aiming at the problem that thin-walled deforms caused by turning thin-wall bushing is because by addendum cone side extruding force, is changed to numerical control milling and a kind of auxiliary mould fixtures for number milling thin-wall bushes for providing by traditional turnery processing.
Description
Technical field
The utility model relates to a kind of auxiliary mould fixtures for number milling thin-wall bush, belong to aviation machine precision manufactureing
Manufacture field.
Background technique
Bushing processing is very common in aviation machine manufacture manufacture field, usually based on turnery processing.But for thin
Wall class bushing part (thin-walled is often referred to wall thickness 1-2mm) when turnery processing, is needed to be held out against part thin-walled using addendum cone and completes dress
Folder, but jacket wall can be made by great side extruding force in this way, cause bushing thin-walled to deform, part rejection, this is thin-wall bush
Turnery processing is most commonly seen and one of stubborn problem.
Compared to turning thin-wall bushing, numerical control milling just has some superiority.Numerical control milling is that aviation machine processing is normal
The processing work post seen, dimensional accuracy are higher, it is ensured that within 0.05mm, surface roughness reachable 0.8 ~ 1.6, simultaneously
Clamped one time positioning may be implemented in numerical control milling, and Reusability is avoided using addendum cone extrusion sections, this is but also numerical control milling exists
Batch production has advantage compared with high precision part processing aspect.To sum up, in order to avoid thin-wall bush because in turnery processing by addendum cone
It squeezes and deforms, while in order to improve batch production efficiency, guaranteeing part processing quality, now by thin-wall bush class part by turning
Processing is changed to NC milling, the auxiliary mould for needing designed, designed a kind of for milling thin-wall bush, solves bushing thin-walled
The problem of being deformed caused by being squeezed because of stress.
Summary of the invention
The purpose of this utility model is to provide a kind of auxiliary mould fixtures for number milling thin-wall bushes, for turning plus
Work thin-wall bush because the problem of thin-walled deforms caused by by addendum cone side extruding force, changed by traditional turnery processing to numerical control milling and
A kind of auxiliary mould fixture for number milling thin-wall bush of offer.
The utility model to achieve the goals above, adopts the following technical scheme that
A kind of auxiliary mould fixture for number milling thin-wall bush, it includes inner cover body and outer cover body；
Inner cover body external cylindrical surface is fitted closely with thin-wall bush inner cylinder face,
Inner cover body is provided with technology hole and bolt clamping hole, for once positioning multiple clamping；
Outer cover body inner cylinder face is fitted closely with thin-wall bush external cylindrical surface, for link block around milling removal part
When, exterior protection is provided, bushing thin-walled springing back and forth is avoided in patch process, part is hurt in milling.
Further, the middle part of the internally positioned lid of bolt clamping hole, technology hole are located at bolt clamping hole
Outside.
Further, the quantity of bolt clamping hole is 1, and the quantity of technology hole is 2.
Further, inner cover body point of shoulder external cylindrical surface is within the scope of thin-wall bush wall thickness dimension.
Further, the bolt clamping hole while inleakage lid and outer cover body.
Wherein, the external cylindrical surface of inner cover body is bonded with thin-wall bush inner headed face, and effect mainly increases part rigidity, is added
Work is shockproof；In addition inner cover body is provided with technology hole and bolt clamping hole, uses for once positioning repeatedly clamping；Outer cover
The inner cylinder face of body is bonded with the external cylindrical surface of thin-wall bush, when effect is the link block around milling removal part, is provided
Exterior protection, avoids in patch process bushing thin-walled springing back and forth, and part is hurt in milling.
Detailed description of the invention
Fig. 1 is thin-wall bush design of part schematic diagram of the invention；
Fig. 2 is inner cover body structural schematic diagram of the invention；
Fig. 3 is outer cover body structural schematic diagram of the invention；
Fig. 4 is sectional arrangement drawing of the invention；
Fig. 5 is assembling exploded view of the invention；
In figure: 1- thin-wall bush；2- technology hole；3- inner cover body；4- bolt clamping hole；5- outer cover body, H- are thin
The wall thickness dimension of wall liner set 1.
Specific embodiment
The present invention will be described in detail for connection with figures below:
A kind of auxiliary mould fixture for number milling thin-wall bush, it includes inner cover body 3 and outer cover body 5；
3 external cylindrical surface of inner cover body is fitted closely with 1 inner cylinder face of thin-wall bush,
Inner cover body 3 is provided with technology hole 2 and bolt clamping hole 4, for once positioning multiple clamping；
5 inner cylinder face of outer cover body is fitted closely with 1 external cylindrical surface of thin-wall bush, for connecting around milling removal part
When block, exterior protection is provided, avoids in patch process bushing thin-walled springing back and forth, part is hurt in milling.
The middle part of the internally positioned lid 3 of the bolt clamping hole 4, technology hole 2 are located at the outside of bolt clamping hole 4.
The quantity of bolt clamping hole 4 is 1, and the quantity of technology hole 2 is 2.
3 point of shoulder external cylindrical surface of inner cover body is within the scope of 1 wall thickness dimension of thin-wall bush.
The bolt clamping hole 4 while inleakage lid 3 and outer cover body 5.
Wherein, 3 external cylindrical surface of inner cover body is fitted closely with 1 inner cylinder face of thin-wall bush, for increasing part rigidity, is added
Work is shockproof；Inner cover body 3 is provided with technology hole 2(Fig. 4) and bolt clamping hole 4(Fig. 4), for once positioning multiple clamping；
5 inner cylinder face of outer cover body is fitted closely with 1 external cylindrical surface of thin-wall bush, for when link block, mentioning around milling removal part
For exterior protection, bushing thin-walled springing back and forth is avoided in patch process, part is hurt in milling.
When being processed using the auxiliary mould, processing sequence is from inside to outside.In 3 external cylindrical surface of inner cover body and thin-wall bush 1
While inner cylinder face fits closely, it should be ensured that 3 point of shoulder external cylindrical surface of inner cover body is in 1 wall thickness dimension H range of thin-wall bush
It is interior, it may not exceed H size, in case milling wound destroys auxiliary mould；Technology hole 2(Fig. 4) calibration positioning after, using bolt clamping
(Fig. 4) clamping of hole 4 fastens, subsequent without relocating calibration, repeatedly clamping use.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (5)
1. a kind of auxiliary mould fixture for number milling thin-wall bush, it is characterised in that: it includes inner cover body (3) and outer cover
Body (5)；
Inner cover body (3) external cylindrical surface is fitted closely with thin-wall bush (1) inner cylinder face,
Inner cover body (3) is provided with technology hole (2) and bolt clamping hole (4), for once positioning multiple clamping；
Outer cover body (5) inner cylinder face is fitted closely with thin-wall bush (1) external cylindrical surface, for connecting around milling removal part
When block, exterior protection is provided, avoids in patch process bushing thin-walled springing back and forth, part is hurt in milling.
2. the auxiliary mould fixture according to claim 1 for number milling thin-wall bush, it is characterised in that: the bolt dress
The middle part of folder hole (4) internally positioned lid (3), technology hole (2) are located at the outside of bolt clamping hole (4).
3. the auxiliary mould fixture according to claim 2 for number milling thin-wall bush, it is characterised in that: bolt clamping hole
(4) quantity is 1, and the quantity of technology hole (2) is 2.
4. the auxiliary mould fixture according to claim 1 for number milling thin-wall bush, it is characterised in that: inner cover body
(3) point of shoulder external cylindrical surface is within the scope of thin-wall bush (1) wall thickness dimension.
5. the auxiliary mould fixture according to claim 1 for number milling thin-wall bush, it is characterised in that: the bolt dress
Folder hole (4) while inleakage lid (3) and outer cover body (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822053241.9U CN209256350U (en) | 2018-12-07 | 2018-12-07 | A kind of auxiliary mould fixture for number milling thin-wall bush |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822053241.9U CN209256350U (en) | 2018-12-07 | 2018-12-07 | A kind of auxiliary mould fixture for number milling thin-wall bush |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209256350U true CN209256350U (en) | 2019-08-16 |
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ID=67562308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822053241.9U Active CN209256350U (en) | 2018-12-07 | 2018-12-07 | A kind of auxiliary mould fixture for number milling thin-wall bush |
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| CN (1) | CN209256350U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113523854A (en) * | 2021-07-30 | 2021-10-22 | 西北机器有限公司 | Machining tool and machining method for thin-wall rotating curved surface part |
-
2018
- 2018-12-07 CN CN201822053241.9U patent/CN209256350U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113523854A (en) * | 2021-07-30 | 2021-10-22 | 西北机器有限公司 | Machining tool and machining method for thin-wall rotating curved surface part |
| CN113523854B (en) * | 2021-07-30 | 2022-09-27 | 西北机器有限公司 | Machining tool and machining method for thin-wall rotating curved surface part |
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