CN106625016A - Locating aligning method for inserting internal spline into slender cam shaft - Google Patents
Locating aligning method for inserting internal spline into slender cam shaft Download PDFInfo
- Publication number
- CN106625016A CN106625016A CN201610913546.5A CN201610913546A CN106625016A CN 106625016 A CN106625016 A CN 106625016A CN 201610913546 A CN201610913546 A CN 201610913546A CN 106625016 A CN106625016 A CN 106625016A
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- Prior art keywords
- spline
- cam shaft
- work
- processed
- positioning
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Classifications
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- 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
- B23Q15/00—Automatic control or regulation of feed movement, cutting velocity or position of tool or work
- B23Q15/20—Automatic control or regulation of feed movement, cutting velocity or position of tool or work before or after the tool acts upon the workpiece
- B23Q15/22—Control or regulation of position of tool or workpiece
Abstract
The invention discloses a locating aligning method for inserting an internal spline into a slender cam shaft. The method comprises the steps: 1) preparing a spline housing and a spline hoop; 2) sleeving a to-be-processed cam shaft workpiece by the spline hoop, wherein the spline hoop and the to-be-processed cam shaft workpiece are fixed together; 3) processing a locating blind hole and a locating threaded hole in the spline hoop; 4) sleeving the large end of an inner hole of the spline housing into the end portion of the to-be-processed cam shaft workpiece and connecting the spline housing to the spline hoop by virtue of a locating pin and a threaded pin; 6) clamping the assembled spline housing, spline hoop and to-be-processed cam shaft workpiece on a gear slotting machine, and taking down the spline housing after a slotting cutter aligns the internal spline tooth; and 7) inserting the spline to the end surface of the to-be-processed cam shaft workpiece. According to the method disclosed by the invention, the angle of the internal spline of the slender cam shaft is precisely controlled, the debugging error in final assembly is reduced, the time is shortened and the difficulty is reduced, and the timing adjusting precision of a cam shaft assembly is improved, and the method is suitable for slender cam shaft workpieces of various similar structures.
Description
Technical field
The invention belongs to mechanical processing technique field, specifically, more particularly to a kind of elongate cam axle is inserted internal spline and is determined
Position aligning method.
Background technology
Camshaft is the critical movements part of diesel engine.The camshaft on certain Large-Scale Equipment that applicant is just researching and developing, it is long
833mm, maximum outside diameter Ф 41mm, draw ratio >=20 are typical thin and long shafts products.The internal spline processing of the camshaft is most
Latter procedure, its internal spline bottom is blind hole, and outer end is optical axis, and without any screw and pin-and-hole, product requirement is ensureing spline
On the premise of itself precision, also need to ensure the angled relationships between the key slot center and the dowel holes of other end Ф 4 in spline, by mistake
Difference control is within ± 30 '.
In order that camshaft internal spline meets above-mentioned requirements, according to processing experience in the past and flower arrangement key principle, generally adopt
Method include：
1st, tool locating clamping workpiece.Because above-mentioned camshaft belongs to slender axles, through actual analysis, it is impossible on slotting machine
Design directly realizes that workpiece positioning completes key operation of arranging flowers with the conventional frock of one end pin-and-hole positioning, and the method is directly no
It is fixed.
2nd, groove aligning method.This is a kind of simple direct method, and using horizontal Machining centers, centering product camshaft is another
One end Ф 4H9 pin-and-holes position, rotates 180 °, and by product figure pin aperture centerline and spline angle line are marked respectively.Pass through during gear shaping
Trial cut workpiece estimates the position relationship between spline position and groove, and constantly adjustment slotting tool angle, finally carries out product gear shaping.Examination
Cannot ensure the angle requirement of design drawing completely up to 1 °～1.5 ° through three coordinate measurements after flower arrangement key.Analysis reason is such as
Under：
Due to part it is partially thin, Jing calculate at the big footpath of spline of Ф 34, groove or to knife or so offset 0.15mm, angle miss
Just ± 30 ', the thickness of groove also not only 0.15mm itself adds this internal spline modulus m=1.5, tooth number Z=21, shape to difference
Into profile of tooth it is very little, exemplar range estimation groove angular error it is too big, the method is denied.
Therefore, technical staff is devoted to developing the processing method that a kind of elongate cam axle inserts internal spline, to solve internal spline
With an angle requirement difficult problem for other end pin-and-hole.
The content of the invention
In view of the above-mentioned deficiency of prior art, the technical problem to be solved is to provide a kind of elongate cam axle
Slotting internal spline positions aligning method.
Technical solution of the present invention is as follows：A kind of elongate cam axle inserts internal spline positioning aligning method, it is characterised in that include
Following steps：
1) spline housing and spline anchor ear are prepared, the endoporus of the spline housing is two-part ledge structure, spline housing endoporus
Big end can position with cam shaft-like work precision-fit to be processed, and the small end of endoporus arranges simulation internal spline, the simulation internal spline
Modulus and the number of teeth it is identical with the internal spline on standard cams shaft-like work, be provided with the big end of the spline housing positioning aperture and
Positioning macropore, positioning aperture is symmetrical with positioning macropore, and the angle between the positioning aperture and simulation internal spline key teeth is same
Standard cams shaft-like work, the endoporus of the spline anchor ear is more than the big end endoporus of spline housing；
2) spline anchor ear is sleeved on cam shaft-like work to be processed, makes cam shaft-like work to be processed stretch out spline anchor ear,
Inner lining plate is embedded between spline anchor ear and cam shaft-like work to be processed, the opening spline anchor ear with hold-down bolt and clamp nut
Tighten up at mouthful, make spline anchor ear and cam shaft-like work to be processed be fixed together；
3) horizontal Machining centers is adopted, with contour V-block cylindrical, the clamping of cam shaft-like work two ends boss to be processed is positioned
Fixation cam shaft-like work to be processed, locating and machining blind hole and positioning spiro pit on spline anchor ear make the position of Blind locating holes big
The little positioning aperture with spline housing is adapted, and the position size of positioning spiro pit is adapted with the positioning macropore on spline housing；
4) the big end endoporus of spline housing is inserted in the end of cam shaft-like work to be processed, with alignment pin and screw thread pin connection spline
Set and spline anchor ear, the alignment pin is through positioning aperture and stretches in Blind locating holes, and the threaded passes through positioning macropore simultaneously
In screwing in positioning spiro pit；
5) by the spline housing after assembling, spline anchor ear and camshaft clamping workpiece to be processed on gear shapping machine, with pinion cutter
Each tooth of accurate mesh splines set simulation internal spline, it is repeated multiple times, after only each tooth engagement is all good, remove spline housing；
6) treating machining cam shaft-like work end face carries out key processing of arranging flowers, and realizes that internal spline is determined with the workpiece other end after processing
Angle between the pin-and-hole of position meets requirement.
Preferably, the inner lining plate is copper sheet, to protect excircle of workpiece.
Preferably, the spline housing and spline anchor ear are made by 45# steel.
Beneficial effect：Dowel hole of the present invention by elongate cam axle relative to the internal spline other end is changed to splined end
Face, and by spline housing and spline anchor ear, with the consistent internal spline of elongate cam axle product accurately to knife, it is ensured that each tooth is all engaged
After good, precise control slotting tool angle carries out key processing of arranging flowers to product again, it is achieved thereby that elongate cam axle internal spline angle
Precise control, reduce general assembly debugging error, time and difficulty, improve the timing Adjustment precision of camshaft general assembly, for
The elongate cam shaft-like work of various similar structures is suitable for.
Description of the drawings
Fig. 1 is the structural representation of elongate cam axle.
Fig. 2 is the left view of left bank camshaft.
Fig. 3 is the left view of right row's camshaft.
Fig. 4 is the right view of Fig. 1.
Fig. 5 is the structural representation of spline housing.
Fig. 6 is the top view of the spline housing for adapting to left bank elongate cam axle.
Fig. 7 is the top view of the spline housing for adapting to right row's elongate cam axle.
Fig. 8 is the structural representation of spline anchor ear.
Fig. 9 is the C-C sectional views of Fig. 8.
Figure 10 is the schematic diagram after spline housing, spline anchor ear and generation processing elongate cam shaft-like work assembling.
Figure 11 is the top view of Figure 10.
Specific embodiment
With reference to the accompanying drawings and examples the invention will be further described：
As shown in Figure 1, Figure 2, Figure 3, Figure 4, one end of elongate cam axle is provided with internal spline M, and the other end offers positioning
There is angle between pin-and-hole N, dowel hole N and wherein one selected internal spline key teeth.If elongate cam axle is that left bank is convex
Wheel shaft, the angle between dowel hole N and wherein one selected internal spline key teeth is a；If elongate cam axle is right row's cam
Axle, the angle between dowel hole N and wherein one selected internal spline key teeth is b.
Such as Fig. 5 to Figure 11 is simultaneously engaged shown in Fig. 1 to Fig. 4, and elongate cam axle inserts internal spline positioning aligning method including following
Step：
1) spline housing 1 and spline anchor ear 2 are prepared, the spline housing 1 and spline anchor ear 2 are preferably made up of 45# steel.Wherein,
Spline housing 1 is two-part ledge structure, and the endoporus of the spline housing 1 is two-part stepped hole, and the big end of the endoporus of spline housing 1 can be with
Cam shaft-like work precision-fit positioning to be processed, the small end inwall of endoporus is provided with simulation internal spline 11, the simulation internal spline 11
Modulus and the number of teeth it is identical with the internal spline M on standard cams shaft-like work, be machined with the big end of spline housing 1 positioning the He of aperture 12
Positioning macropore 13, positioning aperture 12 and positioning macropore 13 are lived apart in the both sides of the endoporus of spline housing 1, and symmetrical.Positioning aperture
Angle between 12 and the simulation key teeth of internal spline 11 is equal between standard cams shaft-like work dowel hole N and internal spline M key teeths
Angle.If left bank camshaft, then the angle positioned between aperture 12 and the simulation key teeth of internal spline 11 is a1, and a1=a；Such as
Fruit is right row's camshaft, then the angle positioned between aperture 12 and the simulation key teeth of internal spline 11 is b1, and b1=b.Spline anchor ear 2
Endoporus more than the endoporus of spline housing 1 big end, facilitate inner lining plate 8 to load, to protect the surface of elongate cam shaft-like work.
2) spline anchor ear 2 is sleeved on cam shaft-like work 7 to be processed, makes cam shaft-like work 7 to be processed stretch out spline and embrace
Hoop 2, is embedded in inner lining plate 8 between spline anchor ear 2 and cam shaft-like work 7 to be processed, and inner lining plate 8 is preferably copper sheet.With compression spiral shell
Bolt 3 and clamp nut 4 will be tightened up at the opening of spline anchor ear 2, make spline anchor ear 2 and cam shaft-like work 7 to be processed be fixed on one
Rise.
3) horizontal Machining centers is adopted, with contour V-block the cylindrical of the two ends boss of cam shaft-like work 7 to be processed, dress is positioned
Clamping fixed cam shaft-like work 7 to be processed, locating and machining blind hole 21 and positioning spiro pit 22, make Blind locating holes on spline anchor ear 2
21 position size is adapted with the positioning aperture 12 on spline housing 1, in the position size and spline housing 1 of positioning spiro pit 22
Positioning macropore 13 is adapted.The quantity of spline anchor ear 2 need to ensure that each cam shaft-like work has 1 spline anchor ear, but different batches
It is secondary suitably to stagger hole position or turn-over reuses the anchor ear, with cost-effective.
4) the big end of the endoporus of spline housing 1 is inserted in the end of cam shaft-like work 7 to be processed, is connected with alignment pin 5 and threaded 6
Spline housing 1 and spline anchor ear 2 are connect, alignment pin 5 is through positioning aperture 12 and stretches in Blind locating holes 21, threaded 6 is through positioning
Macropore 13 is simultaneously screwed in positioning spiro pit 22.
6) by the spline housing 1 after assembling, spline anchor ear 2 and the clamping of cam shaft-like work 7 to be processed on gear shapping machine, with gear shaping
Knife accurate mesh splines set 1 simulates each tooth of internal spline 11, repeated multiple times, after only each tooth engagement is all good, removes flower
Key set 1.
7) treating the end face of machining cam shaft-like work 7 carries out key processing of arranging flowers, and realizes internal spline M and the workpiece other end after processing
Angle between dowel hole N meets requirement.Jing is checked, and angular error all controlled within ± 0.3 °, better than design error ±
0.5 ° of requirement, meets design drawing requirement.
Specific case used herein is set forth to the principle and embodiment of the present invention, for the one of this area
As technology known to technical staff it is unspecified, the such as gear shaping of spline housing, the processing technology of spline anchor ear and concrete spline
Process etc..The explanation of above example is only intended to help and understands the method for the present invention and its core concept；For this area
Those skilled in the art, according to the thought of the present invention, will change in specific embodiments and applications.Should manage
Solution, one of ordinary skill in the art just can carry out many modifications and change without the need for creative work with design of the invention
Change.Therefore, all technical staff in the art pass through on the basis of existing technology under this invention's idea logic analysis, push away
Reason or the available technical scheme of limited experiment, all should be in protection domain determined by the claims.
Claims (3)
1. a kind of elongate cam axle inserts internal spline positioning aligning method, it is characterised in that comprise the following steps：
1) spline housing (1) and spline anchor ear (2) is prepared, the endoporus of the spline housing (1) is two-part ledge structure, spline housing
(1) the big end of endoporus can position with cam shaft-like work precision-fit to be processed, and the small end of endoporus arranges simulation internal spline (11),
The modulus and the number of teeth of the simulation internal spline (11) are identical with the internal spline (M) on standard cams shaft-like work, in the spline housing (1)
Big end be provided with positioning aperture (12) and positioning macropore (13), positioning aperture (12) and position macropore (13) it is symmetrical, institute
The angle between positioning aperture (12) and simulation internal spline (11) key teeth is stated with standard cams shaft-like work, the spline anchor ear (2)
Endoporus hold endoporus greatly more than spline housing (1)；
2) spline anchor ear (2) is sleeved on cam shaft-like work (7) to be processed, makes cam shaft-like work (7) to be processed stretch out spline
Anchor ear (2), is embedded in inner lining plate (8) between spline anchor ear (2) and cam shaft-like work (7) to be processed, with hold-down bolt (3) and pressure
Tight nut (4) will be tightened up at the opening of spline anchor ear (2), make spline anchor ear (2) and cam shaft-like work to be processed (7) be fixed on one
Rise；
3) horizontal Machining centers is adopted, with contour V-block cylindrical, the clamping of cam shaft-like work (7) two ends to be processed boss is positioned
Fixation cam shaft-like work (7) to be processed, locating and machining blind hole (21) and positioning spiro pit (22) on spline anchor ear (2), it is fixed to make
The position size of position blind hole (21) is adapted with the positioning aperture (12) on spline housing (1), and the position of positioning spiro pit (22) is big
The little positioning macropore (13) with spline housing (1) is adapted；
4) spline housing (1) end endoporus greatly is inserted in the end of cam shaft-like work (7) to be processed, with alignment pin (5) and threaded (6)
Connection spline housing (1) and spline anchor ear (2), the alignment pin (5) is through positioning aperture (12) and stretches in Blind locating holes (21),
The threaded (6) is through positioning macropore (13) and screws in positioning spiro pit (22)；
5) by the spline housing (1) after assembling, spline anchor ear (2) and cam shaft-like work to be processed (7) clamping on gear shapping machine, to insert
Each tooth of serrated knife accurate mesh splines set (1) simulation internal spline (11), it is repeated multiple times, after only each tooth engagement is all good,
Remove spline housing (1)；
6) treating machining cam shaft-like work (7) end face carries out key processing of arranging flowers, and realizes internal spline (M) and the workpiece other end after processing
Angle between dowel hole (N) meets requirement.
2. elongate cam axle as claimed in claim 1 inserts internal spline positioning aligning method, it is characterised in that：The inner lining plate
(8) it is copper sheet.
3. elongate cam axle as claimed in claim 1 or 2 inserts internal spline positioning aligning method, it is characterised in that：The spline
Set (1) and spline anchor ear (2) are made by 45# steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610913546.5A CN106625016B (en) | 2016-10-20 | 2016-10-20 | Elongate cam axis inserts internal spline and positions aligning method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610913546.5A CN106625016B (en) | 2016-10-20 | 2016-10-20 | Elongate cam axis inserts internal spline and positions aligning method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106625016A true CN106625016A (en) | 2017-05-10 |
| CN106625016B CN106625016B (en) | 2018-11-13 |
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ID=58855483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610913546.5A Active CN106625016B (en) | 2016-10-20 | 2016-10-20 | Elongate cam axis inserts internal spline and positions aligning method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106625016B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108994662A (en) * | 2018-10-11 | 2018-12-14 | 安徽同华新能源动力股份有限公司 | The correction accessory of slotting tool |
| CN110270721A (en) * | 2019-06-11 | 2019-09-24 | 昌河飞机工业（集团）有限责任公司 | A kind of processing method of high-precision internal spline |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1785597A1 (en) * | 2005-11-12 | 2007-05-16 | Delphi Technologies, Inc. | Cam phaser apparatus |
| CN201313196Y (en) * | 2008-12-10 | 2009-09-23 | 宁夏中卫大河机床有限责任公司 | Aligning device for computerized numerical control (CNC) camshaft milling machine work piece |
| CN103386500A (en) * | 2013-07-30 | 2013-11-13 | 浙江吉利汽车研究院有限公司 | Tool setting device of hole machining boring tool and using method thereof |
| US20150059165A1 (en) * | 2013-09-04 | 2015-03-05 | Musashi Seimitsu Industry Co., Ltd. | Workpiece positioning apparatus |
| CN205254260U (en) * | 2016-01-05 | 2016-05-25 | 湖北唯思凌科装备制造有限公司 | Outer spline machining lathe of auto steering ware input shaft |
-
2016
- 2016-10-20 CN CN201610913546.5A patent/CN106625016B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1785597A1 (en) * | 2005-11-12 | 2007-05-16 | Delphi Technologies, Inc. | Cam phaser apparatus |
| CN201313196Y (en) * | 2008-12-10 | 2009-09-23 | 宁夏中卫大河机床有限责任公司 | Aligning device for computerized numerical control (CNC) camshaft milling machine work piece |
| CN103386500A (en) * | 2013-07-30 | 2013-11-13 | 浙江吉利汽车研究院有限公司 | Tool setting device of hole machining boring tool and using method thereof |
| US20150059165A1 (en) * | 2013-09-04 | 2015-03-05 | Musashi Seimitsu Industry Co., Ltd. | Workpiece positioning apparatus |
| CN205254260U (en) * | 2016-01-05 | 2016-05-25 | 湖北唯思凌科装备制造有限公司 | Outer spline machining lathe of auto steering ware input shaft |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108994662A (en) * | 2018-10-11 | 2018-12-14 | 安徽同华新能源动力股份有限公司 | The correction accessory of slotting tool |
| CN108994662B (en) * | 2018-10-11 | 2023-11-21 | 安徽同华新能源动力股份有限公司 | Correction auxiliary tool for slotting tool |
| CN110270721A (en) * | 2019-06-11 | 2019-09-24 | 昌河飞机工业（集团）有限责任公司 | A kind of processing method of high-precision internal spline |
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| Publication number | Publication date |
|---|---|
| CN106625016B (en) | 2018-11-13 |
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