CN104440336B - The stretching device of slender axles - Google Patents
The stretching device of slender axles Download PDFInfo
- Publication number
- CN104440336B CN104440336B CN201410761827.4A CN201410761827A CN104440336B CN 104440336 B CN104440336 B CN 104440336B CN 201410761827 A CN201410761827 A CN 201410761827A CN 104440336 B CN104440336 B CN 104440336B
- Authority
- CN
- China
- Prior art keywords
- wedge shape
- shape sleeve
- round platform
- mandrel
- platform groove
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
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
- B23Q3/12—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for securing to a spindle in general
- B23Q3/14—Mandrels in general
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B23/00—Tailstocks; Centres
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Turning (AREA)
Abstract
The invention discloses the stretching device of a kind of slender axles, including clamp body and tailstock main shaft, clamp body includes mandrel, and the side of mandrel is inserted tailstock main shaft and is connected with tailstock spindle thread；The end side of mandrel is axially arranged with the round platform groove inserted for slender axles, and the cell wall of round platform groove offers one group of retraction slot；Being arranged with fixed cover outside round platform groove, be provided with wedge shape sleeve between the outer wall of fixed cover and round platform groove, the front end of wedge shape sleeve is near the big side of round platform groove diameter, and wedge shape sleeve is away from the little side of round platform groove diameter；The inwall of wedge shape sleeve is slidably connected with the outer wall of round platform groove, and the outer wall of wedge shape sleeve is connected with fixed cover inner thread.When instant invention overcomes existing thin and long shafts turning, workpiece middle bent, the surface of the work error causing turning is big, smoothness is poor, the shortcoming of low precision, it is provided that a kind of tension workpiece two ends, the stretching device of the slender axles that the surface of the work precision of turning is high, smoothness is good.
Description
Technical field
The invention belongs to truning fixture field, be specifically related to the stretching device of a kind of slender axles.
Background technology
Turnery processing is to utilize workpiece to rotate the method that workpiece is carried out machining relative to cutter on lathe.Turning is suitable to process rotary surface, and major part has the workpiece of rotary surface and can process with method for turning, and such as inside and outside circle cylinder, the inside and outside circle conical surface, end face, groove, screw thread and rotoforming face etc., cutter for same is mainly lathe tool.And the cutting energy of turnery processing is mainly provided by workpiece rather than is provided by cutter.The item that should be noted that in Tutrning Process has: rationally selects cutting data, rationally selects cutter, rationally selects fixture etc..
Fixture is to be used for fixing processing object during machine-building, is allowed to occupy correct position, to accept construction or the device of detection.The workpiece of turning has cylinder, annular, major axis, short axle or lining etc., special workpiece is needed to use special fixture, such as: for thin and long shafts, the workpiece of a length of 20-30m, common fixture has chuck, generally it is sandwiched in the two ends of workpiece, but for slender axles, poor rigidity due to workpiece, and fixing two ends, cantilever is longer, bending is there will be in the middle part of workpiece, when turning, during turning, workpiece rotates and produces, owing to bending occurring in the middle part of workpiece, when therefore rotating, same axle center cannot be ensured, therefore, surface of the work is easily made to produce error, smoothness is poor, low precision.
Summary of the invention
When the technical problem to be solved in the present invention is for existing thin and long shafts turning, workpiece middle bent, the surface of the work error causing turning is big, smoothness is poor, the shortcoming of low precision, it is provided that a kind of tension workpiece two ends, the stretching device of the slender axles that the surface of the work precision of turning is high, smoothness is good.
In order to solve above-mentioned technical problem, the present invention provides following technical scheme: the stretching device of slender axles, including clamp body, tailstock main shaft and inner spacing collar, tailstock collar bush is located at outside inner spacing collar and is provided with bearing between inner spacing collar and tailstock main shaft, clamp body includes mandrel, one end of mandrel is axially inserted into inner spacing collar and threadeds with inner spacing collar, and mandrel is coaxial with tailstock main shaft；The other end end of mandrel is axially arranged with the round platform groove inserted for slender axles, and the miner diameter end of round platform groove is near tailstock main shaft side, and the spindle outer wall of round platform groove offers one group of retraction slot；Being arranged with fixed cover outside round platform groove, be provided with wedge shape sleeve between fixed cover and the outer wall of mandrel, the front end of wedge shape sleeve is near the bigger diameter end of round platform groove；The inwall of wedge shape sleeve is slidably connected with the outer wall of mandrel, and the outer wall of wedge shape sleeve is slidably connected with fixed cover inwall, is provided with the locking nut being connected with spindle thread between wedge shape sleeve and the end of tailstock main shaft.
Use the stretching device of the slender axles of technical solution of the present invention, including clamp body, tailstock main shaft and inner spacing collar, tailstock collar bush is located at outside inner spacing collar and is provided with bearing between inner spacing collar and tailstock main shaft, clamp body includes mandrel, the side of mandrel is axially inserted into inner spacing collar and threadeds with inner spacing collar, and mandrel is coaxial with tailstock main shaft；Threadeding with inner spacing collar in the side of mandrel, can rotate in tailstock main shaft, and mandrel and tailstock main shaft coaxially ensure that bearing is used for alleviating and rotate the frictional force brought.The end side of mandrel is axially arranged with the round platform groove inserted for slender axles, and the cell wall of round platform groove offers one group of retraction slot；Being arranged with fixed cover outside round platform groove, be provided with wedge shape sleeve between the outer wall of fixed cover and round platform groove, be provided with wedge shape sleeve between fixed cover and the outer wall of mandrel, the front end of wedge shape sleeve is near the bigger diameter end of round platform groove；The other end of mandrel is the clamp body of clamping workpiece, in round platform groove, the end for slender axles is inserted, the cell wall of round platform groove offers retraction slot, for round platform groove radial contraction, wedge shape sleeve then can go deep between mandrel and fixed cover, promote round platform groove radial contraction, thus will be located in the slender axles clamping in round platform groove.Locking nut rotates in mandrel, thus is pushed by wedge shape sleeve between mandrel outer wall and the fixed cover outside round platform groove, promotes round platform groove radial contraction.Utilize the slip between mandrel and tailstock main shaft, the length of alignment jig body, wedge shape sleeve is utilized to be advanced the gap pushing between mandrel and fixed cover by wedge shape sleeve by locking nut, thus by round platform groove radial contraction, the slender axles that will be located in round platform groove are fixedly clamped, after Gu Ding, also the relative position between scalable tailstock main shaft and mandrel, thus the position of alignment jig body, regulation slender axles are in tensioning state all the time, avoid the middle bent of slender axles, thus avoid the surface of the work error of turning big, the surface of the work error making turning is little, smoothness is good, precision is good.
Further, the front end diameter of bore of described wedge shape sleeve is more than rear end diameter of bore, and the front end outside diameter of wedge shape sleeve is consistent with rear end outside diameter.The outer wall of wedge shape sleeve is paralleled with fixed cover, and inwall is then inclined-plane, uses the bigger diameter end of inclined-plane endoporus to enter in round platform groove, forces round platform groove radial contraction.
Further, the front end diameter of bore of described wedge shape sleeve is consistent with rear end diameter of bore, and the front end outside diameter of wedge shape sleeve is less than rear end outside diameter.The inwall of wedge shape sleeve and mandrel outer wall are fitted, and the outer wall of wedge shape sleeve is inclined-plane, and front end is tip, is introduced between mandrel and fixed cover, then owing to the entrance of gradually bigger diameter end promotes round platform groove radial contraction.
Further, the rear end of described wedge shape sleeve is provided with locking card.Wedge shape sleeve is locked, it is to avoid it slides, and affects clamping effect.
Further, the radial direction of described tailstock main shaft, inner spacing collar and mandrel is equipped with one group of through hole, is provided with alignment pin in through hole.Alignment pin makes the connection between three tightr, fixing more firm.
Accompanying drawing explanation
With embodiment, technical solution of the present invention is further illustrated below in conjunction with the accompanying drawings:
Fig. 1 is the schematic diagram of the stretching device embodiment one of slender axles of the present invention；
Fig. 2 is the schematic diagram of the embodiment of the present invention two；
Fig. 3 is view during mandrel of the present invention elongation.
Detailed description of the invention
In figure: tailstock main shaft 1, inner spacing collar 2, mandrel 3, round platform groove 4, wedge shape sleeve 5, fixed cover 6, locking nut 7.
Embodiment one:
As shown in Figure 1, Figure 3, the stretching device of slender axles, including clamp body, tailstock main shaft 1 and inner spacing collar 2, tailstock main shaft 1 is sheathed on outside inner spacing collar 2 and is provided with bearing between inner spacing collar 2 and tailstock main shaft 1, clamp body includes mandrel 3, one end of mandrel 3 is axially inserted into inner spacing collar 2 and threadeds with inner spacing collar 2, between mandrel 3 with inner spacing collar 2 between be connected fixing with alignment pin, mandrel 3 is coaxial with tailstock main shaft 1；The other end end of mandrel 3 is axially arranged with the round platform groove 4 inserted for slender axles, and the miner diameter end of round platform groove 4 is near tailstock main shaft 1 side, and the spindle outer wall of round platform groove 4 offers one group of retraction slot；Fixed cover 6 it is arranged with outside round platform groove 4, wedge shape sleeve 5 it is provided with between the outer wall of fixed cover 6 and mandrel 3, the front end diameter of bore of wedge shape sleeve 5 is more than rear end diameter of bore, and the front end outside diameter of wedge shape sleeve 5 is consistent with rear end outside diameter, and the front end of wedge shape sleeve 5 is near the bigger diameter end of round platform groove 4；The inwall of wedge shape sleeve 5 is slidably connected with the outer wall of mandrel 3, the outer wall of wedge shape sleeve 5 is slidably connected with fixed cover 6 inwall, the rear end of wedge shape sleeve 5 is provided with locking card, is provided with the locking nut 7 threadeded with mandrel 3 between wedge shape sleeve 5 and the end of tailstock main shaft 1.
nullIn specific implementation process，Round platform groove 4 is put in the end of slender axles，Then，To direction, round platform groove 4 side rotational lock nut 7，Wedge shape sleeve 5 is promoted in round platform groove 4 by locking nut 7，Thus，The front end of wedge shape sleeve 5 is introduced between mandrel 3 and fixed cover 6，Fixed cover 6 is fixed，Along with the rear end of wedge shape sleeve 5 progresses between mandrel 3 and fixed cover 6，Round platform groove 4 is by the pressure of wedge shape sleeve 5，Make its radial contraction，Thus the slender axles being positioned in round platform groove 4 are fixedly clamped，Then locking card is located at the end of wedge shape sleeve 5，Avoid it to slide，The two ends of slender axles are all fixedly clamped with clamp body，So that the middle part of slender axles is in linear state，Clamp body is used to be strained by slender axles，The end of mandrel 3 can be pulled，The inner spacing collar 2 being sheathed on outside mandrel 3 is slided on tailstock main shaft 1，Thus regulate the distance between the clamp body at clamping slender axles two ends，Thus it is applicable to clamp the slender axles of various length by fine setting.
Embodiment two:
As shown in Figure 2: by the front end diameter of bore of the wedge shape sleeve 5 in embodiment one more than rear end diameter of bore, and the front end outside diameter of wedge shape sleeve 5 is consistent with rear end outside diameter, replacing with: the front end diameter of bore of wedge shape sleeve 5 is consistent with rear end diameter of bore, the front end outside diameter of wedge shape sleeve 5 is less than rear end outside diameter.
Mode of operation is the most identical.
For a person skilled in the art, on the premise of without departing from present configuration, it is also possible to make some deformation and improvement, these also should be considered as protection scope of the present invention, and these are all without affecting effect and the practical applicability that the present invention implements.
Claims (5)
1. the stretching device of slender axles, it is characterized in that: include clamp body, tailstock main shaft and inner spacing collar, tailstock collar bush is located at outside inner spacing collar and is provided with bearing between inner spacing collar and tailstock main shaft, clamp body includes mandrel, one end of mandrel is axially inserted into inner spacing collar and threadeds with inner spacing collar, and mandrel is coaxial with tailstock main shaft；The other end end of mandrel is axially arranged with the round platform groove inserted for slender axles, and the miner diameter end of round platform groove is near tailstock main shaft side, and the spindle outer wall of round platform groove offers one group of retraction slot；Being arranged with fixed cover outside round platform groove, be provided with wedge shape sleeve between fixed cover and the outer wall of mandrel, the front end of wedge shape sleeve is near the bigger diameter end of round platform groove；The inwall of wedge shape sleeve is slidably connected with the outer wall of mandrel, and the outer wall of wedge shape sleeve is slidably connected with fixed cover inwall, is provided with the locking nut being connected with spindle thread between wedge shape sleeve and the end of tailstock main shaft.
2. the stretching device of slender axles as claimed in claim 1, it is characterised in that: the front end diameter of bore of described wedge shape sleeve is more than rear end diameter of bore, and the front end outside diameter of wedge shape sleeve is consistent with rear end outside diameter.
3. the stretching device of slender axles as claimed in claim 1, it is characterised in that: the front end diameter of bore of described wedge shape sleeve is consistent with rear end diameter of bore, and the front end outside diameter of wedge shape sleeve is less than rear end outside diameter.
4. the stretching device of slender axles as described in Claims 2 or 3, it is characterised in that: the rear end of described wedge shape sleeve is provided with locking card.
5. the stretching device of slender axles as claimed in claim 4, it is characterised in that: the radial direction of described tailstock main shaft, inner spacing collar and mandrel is equipped with one group of through hole, is provided with alignment pin in through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410761827.4A CN104440336B (en) | 2014-12-13 | 2014-12-13 | The stretching device of slender axles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410761827.4A CN104440336B (en) | 2014-12-13 | 2014-12-13 | The stretching device of slender axles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104440336A CN104440336A (en) | 2015-03-25 |
| CN104440336B true CN104440336B (en) | 2016-08-31 |
Family
ID=52887498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410761827.4A Expired - Fee Related CN104440336B (en) | 2014-12-13 | 2014-12-13 | The stretching device of slender axles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104440336B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105668139B (en) * | 2015-07-03 | 2018-01-05 | 徐工集团工程机械股份有限公司 | Tensioning apparatus and ribbon conveyer |
| CN114669814A (en) * | 2020-12-24 | 2022-06-28 | 田中金属加工（上海）有限公司 | Clamping tool for linear cutting machining of two sides of slender shaft |
| CN114769643A (en) * | 2022-05-20 | 2022-07-22 | 山西风源机械制造有限公司 | Clamping device for machining slender shaft and numerical control cyclone milling machine tool |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201519882U (en) * | 2009-11-06 | 2010-07-07 | 赵显华 | Processing device of shaft and pipe workpieces under tightening states |
| CN202193808U (en) * | 2011-04-26 | 2012-04-18 | 池州市邦鼐机电科技有限公司 | Induction quenching prestretching device |
| CN102615291A (en) * | 2012-03-15 | 2012-08-01 | 湘潭大学 | Prestress turning method for shaft parts and prestress turning device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100980998B1 (en) * | 2008-10-21 | 2010-09-07 | 현대자동차주식회사 | Clamping jig of torsional strength testing machine for tube |
-
2014
- 2014-12-13 CN CN201410761827.4A patent/CN104440336B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201519882U (en) * | 2009-11-06 | 2010-07-07 | 赵显华 | Processing device of shaft and pipe workpieces under tightening states |
| CN202193808U (en) * | 2011-04-26 | 2012-04-18 | 池州市邦鼐机电科技有限公司 | Induction quenching prestretching device |
| CN102615291A (en) * | 2012-03-15 | 2012-08-01 | 湘潭大学 | Prestress turning method for shaft parts and prestress turning device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104440336A (en) | 2015-03-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103495755B (en) | Machining clamp for outer wall of blind-hole thin-wall sleeve part and using method thereof | |
| CN205342512U (en) | A anchor clamps for processing accurate thin wall sleeve part of overlength | |
| CN104440336B (en) | The stretching device of slender axles | |
| CN201198092Y (en) | Automatic clamping apparatus for machine tool | |
| CN208230857U (en) | A kind of bearing outer ring building up by welding lathe | |
| CN104385119A (en) | Diameter size interchangeable adjustable grinding rod and system | |
| CN104308477A (en) | Machining method of ultra-slender shaft | |
| CN103894641A (en) | Outer-ejection-type inner expansion clamping sleeve | |
| CN204450192U (en) | A kind of Horizontal honing machine automation is with from centering automatic fixture | |
| CN203665318U (en) | Hole grinding fixture for duplicate gear | |
| CN105382579A (en) | Machining tool for bearing pedestal | |
| CN108436124A (en) | A kind of symmetrical bikini expanding arbor fixture | |
| CN104384531A (en) | Post-tensioning chuck device | |
| CN207522241U (en) | A kind of self-centering burnishing device of aperture deburring for steel tube inner hole | |
| CN203751795U (en) | Fixture for turning internal and external circular-arc-shaped surfaces of long shaft type cylindrical workpieces | |
| CN202922283U (en) | Floating adjustable reamer clamp device | |
| CN205465495U (en) | Multi -disc clamping device of circle shear blade | |
| CN204892970U (en) | Manual simple and easy turning device of major diameter work piece | |
| CN209918925U (en) | Clamping device of input shaft sleeve | |
| CN204076006U (en) | The Cylindrical Grinding Processes fixture of axial workpiece | |
| CN206839207U (en) | A kind of Automatic Lathe feeding clamping device | |
| CN202356656U (en) | Elastic clamp for clamping cup-shaped thin-wall parts | |
| CN104551020B (en) | central hole processing lathe | |
| CN110744150B (en) | Lathe suitable for processing internal thread | |
| CN203228053U (en) | Fixture for sleeve-shaped pieces |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160831 Termination date: 20211213 |