CN108031881A - A kind of processing method and Flexible gripping structures of thin-walled blind-hole parts - Google Patents
A kind of processing method and Flexible gripping structures of thin-walled blind-hole parts Download PDFInfo
- Publication number
- CN108031881A CN108031881A CN201711292806.2A CN201711292806A CN108031881A CN 108031881 A CN108031881 A CN 108031881A CN 201711292806 A CN201711292806 A CN 201711292806A CN 108031881 A CN108031881 A CN 108031881A
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- Prior art keywords
- mandrel
- flexible
- chuck
- thin
- expansion set
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- 238000003672 processing method Methods 0.000 title claims abstract description 7
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000013011 mating Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000003754 machining Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 206010044565 Tremor Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000003913 materials processing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/40—Expansion mandrels
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Dowels (AREA)
Abstract
A kind of processing method and Flexible gripping structures of thin-walled blind-hole parts,The Flexible gripping structures contain mandrel,Adjusting nut,Taper expansion set,Flexible chuck,The flexible chuck is one and the matched revolving structure of thin-walled blind hole internal diameter,The front-end and back-end of the flexibility chuck internal diameter are a bell mouth shape respectively,The diameter of the mandrel is matched with the internal diameter of flexible chuck,The afterbody of mandrel is one and the matched taper platform of flexible chuck internal diameter rear end horn mouth,The taper expansion set is a revolving structure being socketed on mandrel,The rear end outside diameter of taper expansion set is a wedge shape,The flexible chuck and mandrel of Flexible gripping structures are plugged in the thin-walled blind hole of part,Taper expansion set and adjusting nut are socketed in the upper of mandrel successively again,Tapered expansion set is pressed between flexible chuck front inner diameter horn mouth and mandrel by adjusting nut,Flexible gripping structures are made to be filled in the thin-walled blind hole outer wall of processing part in the thin-walled blind hole of part.
Description
Technical field
The present invention relates to the finishing of metal thin-wall blind-hole parts, is specifically a kind of finishing of thin-walled blind-hole parts outer wall
Method and Flexible gripping structures.
Background technology
Metal thin-wall blind-hole parts are that a kind of endoporus is obstructed, excircle dimension precision, geometric tolerance and surface roughness requirements
Higher and unmanageable peculiar part, generally use machine add mode easily deform, and quality is difficult to ensure that.
For a long time, because such parts character belongs to thin-walled, blind hole, clamping is yielding and can not make since endoporus is obstructed
With common fixture for locating inner hole, so the method generally added using small lot machine, but machine add during using general mandrel or
Expanding mandrel clamping is often unable to reach the Geometrical Tolerance Principle of excircle dimension, especially in the case of lathe is high-speed rotating,
The situation of clamping shakiness usually occurs.Part can shift, and cause processing failure or lack accuracy to produce substandard products, waste product.
In manufacture course of products, it is important Consideration to manufacture cost and service efficiency, so needing to design a set of
Stable clamping structure carrys out the blind hole type parts of thin-walled of machining high-precision requirement, can solve cost and efficiency and protect
Demonstrate,prove precision.
The content of the invention
The purpose of the application is to provide a kind of high precision machining, the processing method of thin-walled blind-hole parts high in machining efficiency
And Flexible gripping structures.
A kind of processing method of thin-walled blind-hole parts, it is characterised in that 1) have a Flexible gripping structures, the Flexible Fixturing
Structure contains mandrel, adjusting nut, taper expansion set, flexible chuck, and the flexible chuck is one and thin-walled blind hole internal diameter
The revolving structure matched somebody with somebody, the front-end and back-end of the flexibility chuck internal diameter are a bell mouth shape respectively, are set on the internal diameter of flexible chuck
There is a plurality of parallel groove, the diameter of the mandrel is matched with the internal diameter of flexible chuck, and the afterbody of mandrel is one and is pressed from both sides with flexible
The matched taper platform of internal diameter rear end horn mouth is covered, the anterior appropriate location of mandrel is equipped with one section of external screw thread, and mandrel is plugged on flexibility
In chuck, the taper expansion set is a revolving structure being socketed on mandrel, and there is shoulder in the front end of taper expansion set, cone
The rear end outside diameter of shape expansion set is the outer spiral shell of one and the matched wedge shape of flexible chuck front inner diameter horn mouth, adjusting nut and mandrel
Line matches；2) the flexible chuck and mandrel of Flexible gripping structures are plugged in the thin-walled blind hole of part, then by taper expansion set and
Adjusting nut is socketed in the upper of mandrel successively, and tapered expansion set is pressed on flexible chuck front inner diameter horn mouth by adjusting nut
Between mandrel, Flexible gripping structures are made to be filled in the thin-walled blind hole of part；3) part is processed in the state of step 2)
Thin-walled blind hole outer wall, finally by adjusting nut, taper expansion set, mandrel and taper expansion set successively the thin-walled blind hole point with part
Open.
The application is to utilize the horn mouth conical surface between the taper expansion set in Flexible gripping structures and flexible chuck and mandrel
Cooperate, adjusting nut, so as to produce clamping force, makes taper expansion set bear axial force by the external screw thread connection of mandrel
It is further driven to flexible chuck radial dilatation.The key component of the clamp structure is flexible chuck, and flexible chuck endoporus both ends are equal
Be designed as the horn mouth conical surface, the both sides horn mouth conical surface respectively with the taper platform of mandrel and the wedge-shaped conical surface phase interworking of taper expansion set
Close, while the designed openings groove on flexible chuck, so both it can ensure elastic dilatation burst size it is also ensured that intensity will
Ask.
The beneficial effect of the application is that the blind hole type parts of thin-walled can be accurately positioned, convenient mounting and clamping, reliable, rational in infrastructure,
Manufacturing cycle is short, cost is small, and suitable for thin with wall, hole is elongated, the part that endoporus is obstructed and cylindrical Geometrical Tolerance Principle is stringent,
General applicability is respectively provided with to similar metal thin-walled blind hole structure.
The present invention is described in further detail with reference to the accompanying drawings and embodiments.
Brief description of the drawings
Fig. 1 is Flexible gripping structures schematic diagram.
Fig. 2 is that the clamped condition of Flexible gripping structures and thin-walled blind-hole parts is illustrated.
Fig. 3 is flexible jacket structured signal
Fig. 4 is the signal of tapered expansion nested structure
Explanation is numbered in figure：1 mandrel, 2 adjusting nuts, 3 taper expansion sets, 4 flexible chucks, 5 parts, 6 grooves
Embodiment
Referring to attached drawing, the Flexible gripping structures of thin-walled blind-hole parts, contain mandrel 1, adjusting nut 2, taper expansion set 3, soft
Property chuck 4, the flexible chuck 4 is a matched revolving structure of thin-walled blind hole internal diameter with part 5, the flexibility chuck 4
The front-end and back-end of internal diameter are a bell mouth shape respectively, and the internal diameter of flexible chuck 4 is equipped with a plurality of parallel groove 6, described
The diameter of mandrel 1 is matched with the internal diameter of flexible chuck 4, and the afterbody of mandrel 1 is one and flexible chuck internal diameter rear end horn mouth
The taper platform matched somebody with somebody, the anterior appropriate location of mandrel 1 are equipped with one section of external screw thread, and mandrel 1 is plugged in flexible chuck 4, the cone
Shape expansion set 3 is a revolving structure being socketed on mandrel 1, and there is a shoulder in the front end of taper expansion set 3, after taper expansion set 3
End outside diameter is one and the 4 matched wedge shape of front inner diameter horn mouth of flexible chuck, and adjusting nut 2 is matched with the external screw thread of mandrel 1.
When processing the outer wall of thin-walled blind-hole parts, it is plugged on after the flexible chuck 4 of Flexible gripping structures and mandrel 1 are coordinated
In the manufactured thin-walled blind hole of part 5, then taper expansion set 3 and adjusting nut 2 be socketed in the upper of mandrel 1 successively, passed through
Taper expansion set 3 is pressed between flexible 4 front inner diameter horn mouth of chuck and mandrel 1 by adjusting nut 2, fills out Flexible gripping structures
Fill in the thin-walled blind hole of part 5；In the state of being compressed in the thin-walled blind hole of part by Flexible gripping structures filling, using normal
The processing method of rule processes the thin-walled blind hole outer wall of part, finally by the adjusting nut 2 of Flexible gripping structures, taper expansion set 3,
The thin-walled blind hole of mandrel 1 and taper expansion set 4 successively with part 1 separates.
When manufacturing Flexible gripping structures, each component of Flexible gripping structures can use digital control processing to ensure group
The size and precision of part.In order to which clamping is solid and reliable, the horn mouth mating surface of the conical surface of the taper platform of mandrel 1 and flexible chuck 4
And the wedge-shaped outside diameter of the rear end of taper expansion set is processed into the conical surface, angle of taper is designed as 10 °~30 ° (10 °~30 ° of cones
Face, which coordinates, has flexible feeding advantage), mandrel 1 can make technology groove and facilitate cone face process.Adjusting nut 2 passes through mandrel 1
External screw thread, which coordinates, to be tightened, and is tightened rear taper expansion set 3 and is born axial force to the right, active force passes through taper expansion set 3 and pressed from both sides with flexible
The trend that the mating surface of set 4 makes flexible chuck 4 produce radial dilatation makes thin-walled blind-hole parts reliably compress clamping so as to reach
Purpose.The horn mouth of flexible 4 both ends internal diameter of chuck uses the digital control processing conical surface to ensure fit precision, its front speaker mouth coordinates
The main load in face, plays the role of amendment with the mating surface of mandrel taper platform when rear end horn mouth mating surface rotates, expands support.
Flexible chuck 4 selects flexible 65Mn materials processing (or other elastic materials), is heat-treated 50~55HRC, is revolved in high speed
Turn during cracked in order to avoid elastic release quantity is excessive, flexible chuck 4 symmetrically milled out in inner side 4~6 perforation
Open groove, can meet that the release of elastic dilatation amount can also be protected along flexible 4 inner side symmetry direction arrangement open groove of chuck
Demonstrate,prove the intensity of clamp structure.
Claims (2)
1. a kind of Flexible gripping structures of thin-walled blind-hole parts, it is characterised in that the Flexible gripping structures contain mandrel, adjust spiral shell
Mother, taper expansion set, flexible chuck, the flexible chuck are one and the matched revolving structure of thin-walled blind hole internal diameter, the flexibility
The front-end and back-end of chuck internal diameter are a bell mouth shape respectively, and the internal diameter of flexible chuck is equipped with a plurality of parallel groove, institute
The diameter for stating mandrel is matched with the internal diameter of flexible chuck, and the afterbody of mandrel is one and is matched with flexible chuck internal diameter rear end horn mouth
Taper platform, the anterior appropriate location of mandrel is equipped with one section of external screw thread, and mandrel is plugged in flexible chuck, the taper expansion set
It is a revolving structure being socketed on mandrel, there is shoulder in the front end of taper expansion set, and the rear end outside diameter of taper expansion set is one
It is a to be matched with the flexible matched wedge shape of chuck front inner diameter horn mouth, adjusting nut with the external screw thread of mandrel.
2. a kind of processing method of thin-walled blind-hole parts, it is characterised in that 1) have a Flexible gripping structures, the Flexible Fixturing knot
Structure contains mandrel, adjusting nut, taper expansion set, flexible chuck, and the flexible chuck is one and is matched with thin-walled blind hole internal diameter
Revolving structure, the front-end and back-end of the flexibility chuck internal diameter are a bell mouth shape respectively, and the internal diameter of flexible chuck is equipped with
A plurality of parallel groove, the diameter of the mandrel are matched with the internal diameter of flexible chuck, and the afterbody of mandrel is one and flexible chuck
The matched taper platform of internal diameter rear end horn mouth, the anterior appropriate location of mandrel are equipped with one section of external screw thread, and mandrel is plugged on flexible folder
In set, the taper expansion set is a revolving structure being socketed on mandrel, and there are shoulder, taper in the front end of taper expansion set
The rear end outside diameter of expansion set is the external screw thread of one and the matched wedge shape of flexible chuck front inner diameter horn mouth, adjusting nut and mandrel
Matching；2) the flexible chuck and mandrel of Flexible gripping structures are plugged in the thin-walled blind hole of part, then by taper expansion set and tune
Section nut be socketed in the upper of mandrel successively, by adjusting nut by tapered expansion set be pressed on flexible chuck front inner diameter horn mouth with
Between mandrel, Flexible gripping structures are made to be filled in the thin-walled blind hole of part；3) part is processed in the state of step 2)
Thin-walled blind hole outer wall, finally by the adjusting nut of Flexible gripping structures, taper expansion set, mandrel and taper expansion set successively with part
Thin-walled blind hole separates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711292806.2A CN108031881A (en) | 2017-12-08 | 2017-12-08 | A kind of processing method and Flexible gripping structures of thin-walled blind-hole parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711292806.2A CN108031881A (en) | 2017-12-08 | 2017-12-08 | A kind of processing method and Flexible gripping structures of thin-walled blind-hole parts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108031881A true CN108031881A (en) | 2018-05-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711292806.2A Pending CN108031881A (en) | 2017-12-08 | 2017-12-08 | A kind of processing method and Flexible gripping structures of thin-walled blind-hole parts |
Country Status (1)
| Country | Link |
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| CN (1) | CN108031881A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109014267A (en) * | 2018-10-20 | 2018-12-18 | 贵州航铄工业股份有限公司 | A kind of fixed device of thin-walled parts aeroelasticity with threaded hole |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130043673A1 (en) * | 2011-01-03 | 2013-02-21 | Hanlin WANG | Connecting assembly and methods for using the same |
| CN103495755A (en) * | 2013-09-27 | 2014-01-08 | 贵州凯星液力传动机械有限公司 | Machining clamp for outer wall of blind-hole thin-wall sleeve part and using method thereof |
| CN203495272U (en) * | 2013-09-27 | 2014-03-26 | 贵州凯星液力传动机械有限公司 | Outer wall machining clamp for blind hole thin-wall sleeve parts |
| CN206153604U (en) * | 2016-10-31 | 2017-05-10 | 四川工程职业技术学院 | Minor axis class thin wall cylindric part clamping frock |
-
2017
- 2017-12-08 CN CN201711292806.2A patent/CN108031881A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130043673A1 (en) * | 2011-01-03 | 2013-02-21 | Hanlin WANG | Connecting assembly and methods for using the same |
| CN103495755A (en) * | 2013-09-27 | 2014-01-08 | 贵州凯星液力传动机械有限公司 | Machining clamp for outer wall of blind-hole thin-wall sleeve part and using method thereof |
| CN203495272U (en) * | 2013-09-27 | 2014-03-26 | 贵州凯星液力传动机械有限公司 | Outer wall machining clamp for blind hole thin-wall sleeve parts |
| CN206153604U (en) * | 2016-10-31 | 2017-05-10 | 四川工程职业技术学院 | Minor axis class thin wall cylindric part clamping frock |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109014267A (en) * | 2018-10-20 | 2018-12-18 | 贵州航铄工业股份有限公司 | A kind of fixed device of thin-walled parts aeroelasticity with threaded hole |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180515 |
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