CN104308590A - Fixture for milling spline shaft - Google Patents
Fixture for milling spline shaft Download PDFInfo
- Publication number
- CN104308590A CN104308590A CN201410656198.9A CN201410656198A CN104308590A CN 104308590 A CN104308590 A CN 104308590A CN 201410656198 A CN201410656198 A CN 201410656198A CN 104308590 A CN104308590 A CN 104308590A
- Authority
- CN
- China
- Prior art keywords
- clamping sleeve
- splined shaft
- thread bush
- hole
- milling
- 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.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B23/00—Tailstocks; Centres
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Adjustment And Processing Of Grains (AREA)
Abstract
The invention discloses a fixture for milling a spline shaft. The fixture comprises a front tip and a rear tip, wherein the front tip is abutted against the front end of the spline shaft, the rear tip is abutted against the rear end of the spline shaft, and the outer wall of the rear tip is provided with a sliding groove; the fixture also comprises a compressing sleeve and a threaded sleeve, wherein the compressing sleeve is arranged on the outer wall of the rear tip in a sleeving manner and connected to the rear top by a flat key, the flat key is positioned in the sliding groove, the front end of the compressing sleeve is abutted against the rear end of the spline shaft, the threaded sleeve is arranged on the outer wall of the rear tip in a sleeving manner and in threaded connection with the rear tip, the threaded sleeve is positioned behind the compressing sleeve, and a compressed spring is also arranged between the threaded sleeve and the compressing sleeve and abutted against both the threaded sleeve and the compressing sleeve. The invention, overcoming the technical defect that the existing fixture for milling the spline shaft is low in machining efficiency and precision, provides the fixture for milling the spline shaft, which is high in machining efficiency and precision.
Description
Technical field
The invention belongs to clamping tool for machine work field, be specifically related to a kind of milling splined shaft fixture.
Background technology
Usually splined shaft can be adopted in factory to carry out the transmission of mechanical torque.Splined shaft transmission is mechanically operated one, and the appearance of splined shaft has longitudinal key tooth, and the revolving part be enclosed within splined shaft has the keyway mated with key tooth, thus the rotation of splined shaft can rotate by driven rotary part.The processing of splined shaft upper spline normally carries out milling spline on spline miller, and the milling of spline does not at present have special fixture, people normally adopt jaw to clamp the end of splined shaft when carrying out spline milling, thus splined shaft is positioned, but because spline two ends optical axis portion length is too short, if jaw just clamps optical axis place press from both sides shakiness unavoidably, thus affect Milling Accuracy, if jaw clamps working position, then can there is a milling can not milling problem completely, therefore secondary milling must be carried out by secondary clamping to splined shaft, and same splined shaft carries out twice clamping, the processing that twice milling completes, because the precision of twice clamping and twice milling is inconsistent unavoidably, therefore the whole low-quality problem of spline machining can be there is, in addition, twice clamping, twice milling can increase workload, make working (machining) efficiency low.
Summary of the invention
The technical problem to be solved in the present invention is for the technological deficiency that fixture working (machining) efficiency is low, machining accuracy is low during current milling pin splined shaft, provides the milling splined shaft fixture that a kind of working (machining) efficiency is high, machining accuracy is high.
In order to solve the problems of the technologies described above, the invention provides following technical scheme: milling splined shaft fixture, comprise front top and back centre, describedly frontly toply to offset with the center, front end of splined shaft, the back-end central of described back centre and splined shaft offsets, and the outer wall of back centre is provided with chute; Also comprise clamping sleeve and thread bush, on the outer wall that described clamping sleeve is sheathed on back centre and clamping sleeve be connected by flat key with back centre, described flat key is positioned at chute, clamping sleeve front end and splined shaft rear end offset, on the outer wall that described thread bush is sheathed on back centre and thread bush be threaded with back centre, thread bush is positioned at the rear of clamping sleeve, and is also provided with stage clip between thread bush and clamping sleeve, and described stage clip and clamping sleeve, stage clip and thread bush all offset.
Adopt the milling splined shaft fixture of technical solution of the present invention, comprise front top and back centre, front top and back centre pushes against the center, rear and front end of splined shaft respectively, thus is fixedly clamped by splined shaft, positions splined shaft on the whole; The outer wall of back centre is provided with chute, and chute can slide for flat key, thus realizes the movable of clamping sleeve; Also comprise clamping sleeve, clamping sleeve is connected by flat key with back centre, thus the rotation of back centre can drive the rotation of clamping sleeve, clamping sleeve leading section and splined shaft rearward end push against, thus produce frictional force between splined shaft end and clamping sleeve end, thus the rotation of clamping sleeve can drive the rotation of splined shaft; Also comprise thread bush, thread bush is threaded with back centre, thus thread bush can screw thread precession on back centre, and thread bush is when being subject to external force, screw thread can give thread bush a resistance, avoids thread bush to skid, the easy compression of stage clip, thus facilitate thread bush precession forward, to increase the size of clamping sleeve pressure, thus increase frictional force between clamping sleeve leading section and splined shaft rearward end.
Know-why of the present invention and technique effect are: front top and back centre pushes against the center, front and back end of splined shaft respectively, therefore splined shaft is subject to the axial pressing force of a pair balance, under the effect of splined shaft self gravitation, described thrust make splined shaft and front and back top between produce a frictional force straight up, thus avoid the downward landing of splined shaft, namely Primary Location realized to splined shaft; Clamping sleeve is connected with back centre key, thus during back centre rotation, flat key also and then rotates together, and flat key is arranged in the keyway of clamping sleeve inwall, therefore give keyway thrust of clamping sleeve inwall when flat key rotates, thus promotion clamping sleeve rotates together; Thread bush to preceding thread precession, push against stage clip, stage clip produces compression, pushes against clamping sleeve, thus stage clip gives clamping sleeve a pressure, and clamping sleeve front end and splined shaft rear end offset, due to the transfer principle of power, clamping sleeve also gives splined shaft a pressure, therefore, under the rotary motion of clamping sleeve, between clamping sleeve leading section and splined shaft rearward end, produce a frictional force, this frictional force can drive splined shaft to rotate together, thus can carry out Milling Process to splined shaft.Due in the invention process process without the need to clamping the working position of splined shaft, but realize the location to splined shaft by the end compressing splined shaft, thus only need clamped one time can complete Milling Process to whole splined shaft, working (machining) efficiency is high, and whole Milling Processes is continuous print, avoid because needing twice processing just can complete the processing of whole splined shaft and the low defect of the crudy caused.
Further, the center, leading section of described clamping sleeve is provided with taper hole, and described taper hole coordinates with the chamfering of splined shaft rear end.Thus increase the contact area of clamping sleeve and splined shaft, and then increase the frictional force between clamping sleeve and splined shaft.
Further, the endoporus of described clamping sleeve is shoulder hole, and described shoulder hole comprises diameter holes and hole, large footpath, and the rear end that described diameter holes is positioned at the front end of clamping sleeve, large hole, footpath is positioned at clamping sleeve, described stage clip is positioned at hole, large footpath.Stage clip is positioned at hole, large footpath, occurs completely when avoiding stage clip to be compressed.
Further, also comprise positioning screw, on described thread bush, radial direction is provided with locating hole, and described back centre outer wall is provided with the screwed hole of one group of radial direction, and described positioning screw passes locating hole and is threaded with screwed hole.Thus avoid thread bush to skid or damaged screw when being subject to the elastic force of spring, and one group of screwed hole can adjust the position of positioning screw and then the compression degree of adjustment stage clip as required.
Further, described thread bush outer wall is provided with two projections, and described two projections lay respectively at the two ends of the same diameter of thread bush.Two protruding convenience spanners turn thread bush, and thread bush is moved forward and backward.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, technical solution of the present invention is further illustrated:
Fig. 1 is the schematic diagram of milling splined shaft fixture of the present invention;
Fig. 2 is the schematic diagram of back centre;
Fig. 3 is the schematic diagram of clamping sleeve.
Detailed description of the invention
As shown in Figure 1, milling splined shaft fixture of the present invention, comprise front top 1 and back centre 16, described front top 1 offsets with the center, front end of splined shaft 2, described back centre 16 offsets with the back-end central of splined shaft 2, the outer wall of back centre 16 is provided with axial slide 6 and one group of radial screw bore 15, as shown in Figure 2, also comprise clamping sleeve 14, coaxial and the taper hole 3 communicated, diameter holes 4 and large hole, footpath 5 is provided with from front to back successively in clamping sleeve 14, as shown in Figure 3, on the outer wall that clamping sleeve 14 is sheathed on back centre 16 and clamping sleeve 14 be connected by flat key 12 with back centre 16, described flat key 12 is positioned at chute 6, and the taper hole 2 of clamping sleeve 14 offsets with the chamfering 11 of splined shaft 2 rear end and splined shaft 2 rear end, also comprise thread bush 13 and two positioning screws 8, on thread bush 13, radial direction is provided with two locating holes 10, described two locating holes 10 lay respectively at the two ends of the same diameter of thread bush 13, described positioning screw 8 passes locating hole 10 and is threaded with screwed hole 15, the outer wall of thread bush 13 also have two projections 9, described protruding 9 two ends laying respectively at the same diameter of thread bush 13, described thread bush 13 is sheathed on the outer wall of back centre 16, and thread bush 13 is threaded with back centre 16, thread bush 13 is positioned at the rear of clamping sleeve 14, and be also provided with stage clip 7 between thread bush 13 and clamping sleeve 14, described stage clip 7 is positioned at hole, large footpath 5, and stage clip 7 and end, hole 5, large footpath, stage clip 7 and thread bush 13 all offset.
In specific implementation process, move front top 1 and back centre 16, make front top 1 and back centre 16 push against center, front end and the back-end central of splined shaft 2 respectively, spanner is stuck in projection 9 place on thread bush 13 outer wall, pull spanner, make thread bush 13 to clamping sleeve 14 direction precession, compression press spring 7, thus stage clip 7 promotes clamping sleeve 14 moves forward, when clamping sleeve 14 and splined shaft 2 ends contact, continue to pull spanner, thread bush 13 is made to continue precession forward, till the rotation of back centre 16 can drive splined shaft 2 to rotate together, stop pulling spanner, two positioning screws 8 are inserted respectively in the locating hole 10 on thread bush 13, and positioning screw 8 lower end is screwed in the screwed hole 15 on back centre 16 outer wall, Milling Process can be carried out to splined shaft 2.
For a person skilled in the art, under the prerequisite not departing from structure of the present invention, can also make some distortion and improvement, these also should be considered as protection scope of the present invention, and these all can not affect effect of the invention process and practical applicability.
Claims (5)
1. milling splined shaft fixture, is characterized in that: comprise front top and back centre, describedly frontly toply to offset with the center, front end of splined shaft, and the back-end central of described back centre and splined shaft offsets, and the outer wall of back centre is provided with chute; Also comprise clamping sleeve and thread bush, on the outer wall that described clamping sleeve is sheathed on back centre and clamping sleeve be connected by flat key with back centre, described flat key is positioned at chute, clamping sleeve front end and splined shaft rear end offset, on the outer wall that described thread bush is sheathed on back centre and thread bush be threaded with back centre, thread bush is positioned at the rear of clamping sleeve, and is also provided with stage clip between thread bush and clamping sleeve, and described stage clip and clamping sleeve, stage clip and thread bush all offset.
2. milling splined shaft fixture as claimed in claim 1, is characterized in that: the center, leading section of described clamping sleeve is provided with taper hole, and described taper hole coordinates with the chamfering of splined shaft rear end.
3. milling splined shaft fixture as claimed in claim 1, it is characterized in that: the endoporus of described clamping sleeve is shoulder hole, described shoulder hole comprises diameter holes and hole, large footpath, and the rear end that described diameter holes is positioned at the front end of clamping sleeve, large hole, footpath is positioned at clamping sleeve, described stage clip is positioned at hole, large footpath.
4. the milling splined shaft fixture as described in claim 1 or 3, it is characterized in that: also comprise positioning screw, on described thread bush, radial direction is provided with locating hole, and described back centre outer wall is provided with the screwed hole of one group of radial direction, and described positioning screw passes locating hole and is threaded with screwed hole.
5. milling splined shaft fixture as claimed in claim 4, it is characterized in that: described thread bush outer wall is provided with two projections, described two projections lay respectively at the two ends of the same diameter of thread bush.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410656198.9A CN104308590A (en) | 2014-11-18 | 2014-11-18 | Fixture for milling spline shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410656198.9A CN104308590A (en) | 2014-11-18 | 2014-11-18 | Fixture for milling spline shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104308590A true CN104308590A (en) | 2015-01-28 |
Family
ID=52363973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410656198.9A Pending CN104308590A (en) | 2014-11-18 | 2014-11-18 | Fixture for milling spline shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104308590A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104759902A (en) * | 2015-03-19 | 2015-07-08 | 镇江索达联轴器有限公司 | Spline milling fixture |
| CN110160421A (en) * | 2017-12-29 | 2019-08-23 | 胡学静 | Automatic automobile engine axial workpiece jitter detection apparatus |
| CN110293432A (en) * | 2019-08-07 | 2019-10-01 | 安徽星瑞齿轮传动有限公司 | A kind of compound positioning spline milling clamper of top ringfeder and Workpiece clamping localization method |
-
2014
- 2014-11-18 CN CN201410656198.9A patent/CN104308590A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104759902A (en) * | 2015-03-19 | 2015-07-08 | 镇江索达联轴器有限公司 | Spline milling fixture |
| CN110160421A (en) * | 2017-12-29 | 2019-08-23 | 胡学静 | Automatic automobile engine axial workpiece jitter detection apparatus |
| CN110293432A (en) * | 2019-08-07 | 2019-10-01 | 安徽星瑞齿轮传动有限公司 | A kind of compound positioning spline milling clamper of top ringfeder and Workpiece clamping localization method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150128 |
|
| WD01 | Invention patent application deemed withdrawn after publication |