CN207043777U - A kind of fixture for thin and long shafts part deep hole machining - Google Patents
A kind of fixture for thin and long shafts part deep hole machining Download PDFInfo
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- CN207043777U CN207043777U CN201720891437.8U CN201720891437U CN207043777U CN 207043777 U CN207043777 U CN 207043777U CN 201720891437 U CN201720891437 U CN 201720891437U CN 207043777 U CN207043777 U CN 207043777U
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- adapter
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- deep hole
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Abstract
The utility model belongs to Deep-Hole Drilling Technology, is related to a kind of fixture for thin and long shafts part deep hole machining.Characterized in that, it is made up of adapter (1), collet (2), locking head (3).This fixture being installed in gun drilling equipment, the range of work of gun drilling equipment can be expanded, realize the auxiliary positioning in micro-electromechanical sensors thin and long shafts part deep hole machining, strengthen the rigidity of process system in these part process, crudy is improved, so as to the deep hole machining of small thin and long shafts part that is high-quality, efficiently completing.
Description
Technical field
The utility model belongs to Deep-Hole Drilling Technology, is related to a kind of fixture for thin and long shafts part deep hole machining.
Background technology
Aviation controls and the most radial dimension of axial workpiece of measuring micro-electromechanical sensors is small, and length is relatively long,
Its core is usually constructed with axially extending bore structure, and the diameter of this some holes is less than 8mm more, and the ratio between depth and aperture are mostly 20, its into
Type category Deep-Hole Drilling Technology.Deep hole machining is generally carried out in special gun drilling equipment, typically using chuck as master positioning
Part, for part support frame as auxiliary positioning part, the minimum grip diameter of wherein part support frame is usually 14mm, it is difficult to is realized micro-
Auxiliary positioning in the processing of electromechanical transducer axis class part deep-hole.The deep hole work in-process of these axial workpieces is only using card
Disk positioning clamps, and the rigidity deficiency of process system, part are easily shaken, shaken in process, cause the precision after deep hole forming
It is low, waste product is more, processing efficiency is not high, it is difficult to adapt to series-produced requirement, there is an urgent need to improve part crudy.
The content of the invention
The purpose of this utility model is：It is proposed a kind of folder that can be installed in gun drilling equipment part support frame component
Tool, realizes the auxiliary positioning in micro-electromechanical sensors axial workpiece deep hole machining, strengthens technique system in these part process
The rigidity of system, crudy is improved, so as to deep hole machining that is high-quality, efficiently completing micro-electromechanical sensors axial workpiece.
The technical solution of the utility model is：A kind of fixture for thin and long shafts part deep hole machining, it is characterised in that
It is made up of adapter 1, collet 2, locking head 3；Adapter 1 has axially symmetric Step Shaft gabarit, and locking head 3 is with turning
Joint chair 1 is threadedly coupled, and the core of adapter 1 has the axially extending bore concentric with profile, and collet 2 is in adapter 1, spring
Chuck 2 is cylindrical body of the both ends with the conical surface, and respectively there is the conical surface 5 at both ends, and the both ends of the surface of collet 2 respectively have one group circumferentially symmetrical four
Groove, two groups of groove sizes are identical, are all higher than the length of 2 liang of end cone faces 5 of collet, 45 ° of the carrier phase shift of two groups of grooves, locking head
3 be cylinder, and the left end of locking head 3 has taper hole 6, the taper fit with two end cone faces 5 in collet 2.
The both ends of adapter 1 are provided with external screw thread, and major diameter of thread nominal dimension is less than middle part external diameter nominal dimension, outside middle part
Footpath nominal dimension is more than the minimum grip size of the part support frame on deep hole processing equipment；
Its external diameter nominal dimension of the collet 2 is identical with the through hole nominal dimension of adapter 1, both gap slide fits
Its external diameter nominal dimension of the locking head 3 is less than the maximum outside diameter size of adapter 1,
The hole size of collet 2 is identical with the external diameter nominal dimension of parts to be processed 4, and both gaps coordinate；
It is an advantage of the invention that：The utility model realizes that the auxiliary in micro-electromechanical sensors axial workpiece deep hole machining is determined
Position, the range of work of gun drilling equipment is expanded, strengthen the rigidity of process system in these part process, so as to excellent
Matter, the deep hole machining for efficiently completing micro-electromechanical sensors axial workpiece, ensure that crudy, realize high-quality, efficient add
The processing of work micro-electromechanical sensors axial workpiece medium-length hole key element.
Brief description of the drawings
Fig. 1 is a kind of clamp structure schematic diagram for thin and long shafts part deep hole machining.
Wherein 1- adapters, 2- collets, 3- locking heads, 4- parts to be processed.
Fig. 2 is the structural representation of adapter.
Fig. 3 is the structural representation of collet.
Fig. 4 is the structural representation of locking head.
Embodiment
The utility model is described in further details below.
Referring to Fig. 1, a kind of fixture for thin and long shafts part deep hole machining, it is characterised in that it is by adapter 1, bullet
Spring chuck 2, locking head 3 form.Adapter 1 has axially symmetric Step Shaft gabarit, and both ends are helicitic texture, and major diameter of thread is public
Size is claimed to be less than middle part external diameter nominal dimension, middle part external diameter nominal dimension is more than the part support frame on deep hole processing equipment most
Small clamping dimension, it is easy in the part support frame that the utility model is arranged in deep hole processing equipment；The core of adapter 1 have with
The concentric axially extending bore of profile.Collet 2 is cylindrical body of the both ends with the conical surface, and its external diameter nominal dimension is logical with adapter 1
Hole nominal dimension is identical, both gap slide fits；Respectively there is the conical surface 5 at the outside both ends of collet 2；Through hole inside collet 2 with
Cylindrical its nominal dimension is identical with the external diameter nominal dimension of parts to be processed 4 with one heart, and both gaps coordinate；The both ends of collet 2
Respectively there is one group of axial groove to outside insertion in face, and it is rectangular that every group of groove is symmetrically distributed with section in the circumference of collet 2
Four grooves, the axial dimension of two groups of grooves is identical, is all higher than the length of 2 liang of end cone faces 5 of collet, the carrier phase shift of two groups of grooves
45 °, the collet of two groups of slot structures is set, chucking power is relatively large, clamps more reliable.Locking head 3 is cylinder, and its external diameter is public
Size is claimed to be less than the maximum outside diameter size of adapter 1, there are the screwed hole of insertion right side, screwed hole nominal in the right side of locking head 3
Size is identical with the screw thread nominal dimension at the both ends of adapter 1, and the left end of locking head 3 has taper hole 6, in its taper and collet 2
The taper of two end cone faces 5 is identical.The small end of taper hole 6 penetrates with the left side of locking head 3, the big end of taper hole and the screw thread of locking head 3
Bottom hole face penetrates.
As shown in figure 1, collet 2 is fitted into the respective aperture of adapter 1, two locking heads 3 are preliminary from the left and right sides
Screw in the corresponding screw at the both ends of adapter 1.During processing, first parts to be processed 4 is fitted into the respective through hole of collet 2,
Two locking heads 3 of turn, locking head 3 move axially, the corresponding conical surface at its both ends of inner cone hole surface holddown spring chuck 2, bullet
Spring chuck 2 produces radial contraction, so as to clamp parts to be processed 4.The utility model of parts to be processed 4 will be installed by turning
The excircle orientation at the middle part of joint chair 1, is fitted into the part auxiliary mounting deck of deep hole processing equipment, one end machine of parts to be processed 4
Bed chuck positioning clamps, you can starts the deep hole machining of part.
Embodiment：
The controlled motor of certain flight control system, its shaft material are iron-nickel alloy, and external diameter 6.5mm, long 88mm, inside leads to
Hole, its diameter 4.4mm.Processed on X2-TLF type numerical control deep-hole drilling devices, former qualification rate only has 30 ﹪ or so；Using this reality
After new, qualification rate brings up to 95 ﹪, and processing efficiency improves more than 4 times, effectively promotes project batch production and promotes.
Claims (5)
1. a kind of fixture for thin and long shafts part deep hole machining, it is characterised in that it is by adapter (1), collet
(2), locking head (3) forms；Adapter (1) has axially symmetric Step Shaft gabarit, locking head (3) and adapter (1) screw thread
Connection, the core of adapter (1) have the axially extending bore concentric with profile, and collet (2) is in adapter (1), spring clip
Head (2) is cylindrical body of the both ends with the conical surface, and respectively there is the conical surface (5) at both ends, and collet (2) both ends of the surface respectively have one group circumferential symmetrical point
The groove of cloth four, two groups of groove sizes are identical, are all higher than the length of the end cone face (5) of collet (2) two, the carrier phase shift of two groups of grooves
45 °, locking head (3) is cylinder, and the left end of locking head (3) has taper hole (6), the cone with two end cone faces (5) in collet (2)
Degree coordinates.
2. it is used for the fixture of thin and long shafts part deep hole machining as claimed in claim 1, it is characterised in that the adapter
(1) both ends are provided with external screw thread, and major diameter of thread nominal dimension is less than middle part external diameter nominal dimension, and middle part external diameter nominal dimension is more than deep
The minimum grip size of part support frame in hole machined equipment.
3. it is used for the fixture of thin and long shafts part deep hole machining as claimed in claim 1, it is characterised in that the collet
(2) its external diameter nominal dimension is identical with the through hole nominal dimension of adapter (1), both gap slide fits.
4. the fixture for thin and long shafts part deep hole machining as described in claim 1-3 any one, it is characterised in that institute
State maximum outside diameter size of its external diameter nominal dimension of locking head (3) less than adapter (1).
5. it is used for the fixture of thin and long shafts part deep hole machining as claimed in claim 4, it is characterised in that the collet
(2) hole size is identical with the external diameter nominal dimension of parts to be processed (4), and both gaps coordinate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720891437.8U CN207043777U (en) | 2017-07-21 | 2017-07-21 | A kind of fixture for thin and long shafts part deep hole machining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720891437.8U CN207043777U (en) | 2017-07-21 | 2017-07-21 | A kind of fixture for thin and long shafts part deep hole machining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207043777U true CN207043777U (en) | 2018-02-27 |
Family
ID=61497891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720891437.8U Active CN207043777U (en) | 2017-07-21 | 2017-07-21 | A kind of fixture for thin and long shafts part deep hole machining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207043777U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108561690A (en) * | 2018-03-20 | 2018-09-21 | 中国工程物理研究院总体工程研究所 | Using the Product Assembly structure of Wedge-type flexibility secondary support means |
-
2017
- 2017-07-21 CN CN201720891437.8U patent/CN207043777U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108561690A (en) * | 2018-03-20 | 2018-09-21 | 中国工程物理研究院总体工程研究所 | Using the Product Assembly structure of Wedge-type flexibility secondary support means |
| CN108561690B (en) * | 2018-03-20 | 2023-12-15 | 中国工程物理研究院总体工程研究所 | Product assembling structure adopting wedge block type flexible auxiliary supporting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhou Yingbin Inventor after: Li Pengli Inventor after: Zhu Xiaohua Inventor before: Zhou Yingbin Inventor before: Shen Siwen Inventor before: Zhu Xiaohua |