CN101263308A - Hollow shaft and manufacturing method thereof - Google Patents
Hollow shaft and manufacturing method thereof Download PDFInfo
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- CN101263308A CN101263308A CNA2006800336069A CN200680033606A CN101263308A CN 101263308 A CN101263308 A CN 101263308A CN A2006800336069 A CNA2006800336069 A CN A2006800336069A CN 200680033606 A CN200680033606 A CN 200680033606A CN 101263308 A CN101263308 A CN 101263308A
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Abstract
The invention relates to a hollow shaft which on both ends has better profiling for the transmission of torque, for example splined shaft profiling, shaft sections lying therebetween having a smaller diameter than at least one of the profiled sections.
Description
Technical field
The present invention relates to a kind of hollow shaft, comprise and be arranged on the external frame shaping structure that is used for transmitting torque on two end, for example vertically toothing, rectangular spline, polygonal profile etc., wherein, the diameter in the axle zone between these contoured structures is littler than the diameter of these contoured structures.
Background technique
This hollow shaft can be used to drive some devices, for example oil pump, and wherein, because the space, intermediate portion is thinner than the end that is provided with toothing.
The suggestion that is used to make this axle has proposed, and makes this axle integratedly by cold hobbing.But at this, one of these contoured structures may broaden again after having made the hollow shaft zone.Therefore this portion of broadening can only require to reprocess with significant size with very complicated special tool(s) processing division district.May produce significant fringe cost thus.
Summary of the invention
The objective of the invention is, a kind of hollow shaft that starts described type is proposed, it is characterized in that simple especially, inexpensive and make fast and highi degree of accuracy, in addition, also proposed a kind of be used for inexpensive, make the method for described hollow shaft quickly and accurately.
According to the present invention, this purpose realizes in a kind of hollow shaft that starts described type like this: promptly, this hollow shaft by or can form by two members, one of them member comprises described axle section and profile and comprise a socket connection outside, transmitting torque on this a side that deviates from described profile, wherein, other member is the member of a sleeve shape, and it comprises the interior profile of the transmitting torque of second profile and a socket connection.
At this, advantageously, the moulding of the moulding of a profile of the section of described hollow shaft shape, these contoured structures and socket connection and/or described other member is undertaken by cold hobbing by a kind of solid blank.
At this, meet the destination and be, between the interior profile of this socket connection and external frame, a press fit is set, make after the above sleeve of sleeve transportation, operation and between erecting stage this sleeve do not drop from this shaft like parts.
If these two the contoured structures that are arranged on the hollow shaft end are provided with different diameters, what meet purpose so is, smaller profile shaping structure and bigger contoured structure and this tubular section single type are set on this sleeve shape member makes.
It is provided with is configured in an one diameter than contoured structure on the big end of shaft diameter, transmitting torque, the external frame of a splined shaft profile and transmitting torque that be provided with, a socket connection for example on opposite shaft end one by one in order to make this hollow shaft section, advantageously, at least one of following step is set:
A) cut next material blank by a kind of rod-shaped material fixed length,
B) carry out the first cup-shaped extruding, wherein, carry out the manufacturing of a cup-shaped hollow area with solid extending portion and this cup-shaped zone at least approx corresponding to the internal diameter and the external diameter of described profile section,
C) carry out the second cup-shaped extruding, wherein, carry out the prolongation of described hollow area by cold hobbing by this extending portion,
D) bored a hole in the cup shell bottom,
E) hollow extruding wherein, is carried out the beginning of the manufacturing of hollow axis body by cold hobbing,
F) carry out first of diameter and wall thickness by cold hobbing and reduce the prolongation of the hollow shaft section in moulding and the step e) and and then be set for the neck area of the zone formation of the described profile of formation with respect to described hollow outer shaft diameter thickening,
G) carry out at least approx reducing the prolongation of the hollow shaft section moulding and the step f) by cold hobbing from second of described ring neck shape zone,
H) the finished product compacting of the contour area by carrying out external tooth structural type in the interior profile that a mandrel is presented to described contour area with same diameter, wherein, an annular extrusion head that surrounds described mandrel being squeezed in the end region of described end regions and at this is expressed in the anti-toothing of a mould material, this mould is set for around one and forms placing of toothing regionally, form an axial protuberance at this
I) in case of necessity with step h) simultaneously by the external frame of cold hobbing in the described socket connection of region generating that deviates from described contour area of this hollow shaft,
J) described protuberance is fallen in turning.
In order to make the sleeve of the interior profile with external frame shaping structure and a socket connection, advantageously, at least one in the particularly following method step is suitable:
A) cut next material blank by a kind of rod-shaped material fixed length,
B) carry out cup-shaped extruding and simultaneously preferably be pressed onto the interior profile that forms described socket connection on the finished product overall size by cold-extruded,
C) bored a hole in the bottom,
D) turning external diameter,
E) make described external frame by cold hobbing, wherein, a mandrel that has corresponding to the profile of the interior profile of described socket connection imported in this be squeezed in the described end region opposite in profile and with an annular extrusion head that surrounds this mandrel with the bottom of boring a hole, and material is expressed in the anti-toothing of a mould at this, this mould forms placing of toothing around described being set in advance regionally, at this moment form an axial protuberance
F) finished size is arrived in this sleeve height turning, get rid of described axial protuberance at this.
In order further to make hollow shaft, particularly advantageously be before or after being contained in sleeve sleeve or pressure sleeve on this, to carry out at least three in the following step by socket connection:
A) in zone of the internal turning described and profile that the wide one of this arbor wheel constitutes,
B) in the zone, outer end of this profile, make a cutting slot,
C) in the zone of this profile described in profile begin to locate chamfering of manufacturing,
D) in the zone of this profile described cylindrical in tool withdrawal groove of manufacturing in the end regions of profile.
At this, advantageously, between each method step, carry out heat treatment or surface treatment, particularly soft annealing, thus, this material (it is organized in the abovementioned steps and is hardened by cold forming) is softened again, for example when manufacturing has the hollow axis body of first profile in the shaping at step b) and c), d) and e), e) and f), f) and g) and g) and h) between carry out described heat treatment or surface treatment, when making sleeve at step d) and e) between carry out described heat treatment or surface treatment.
Description of drawings
Describe the present invention in detail by means of Fig. 1-19.
Fig. 1 illustrates one according to hollow shaft of the present invention or hollow shaft made according to the method for the present invention,
Fig. 2-19 illustrates each method step of the axle that is used for working drawing 1.
Embodiment
Have a tubular section 4 between these two shaping areas 2,3, the latter has the diameter littler than described contoured structure 2,3 at least on the part area.In the present embodiment, profile 3 and tubular section 4 integratedly in other words single type ground constitute, and socket connection 5,6 sleeves of the sleeve 7 that carries profile 2 by a transmitting torque also will be described described socket connection below on this end opposite with described profile 3.This socket connection 5 and 6 is constructed to press fit.Not only tubular section 4 and the moulding section 3 that constitutes with its single type but also sleeve 7, as following also want as described in, at least about aspect the functional area, make by cold forming.
At this, Fig. 2 illustrates one by customized cut-off, at this blank 8 that separates for sawing, from a kind of rod-shaped material.
In a cold extrusion method, be called as the parts of making in the course of working of " cup-shaped extruding 1 " according to Fig. 39 at one by this blank.
Be expressed as at one in the course of working of " cup-shaped extruding 2 " by cold hobbing and make parts according to sleeve shape Fig. 4, that mark with label 10.
In a course of working " perforation ", the bottom 11 (referring to Fig. 4) of described sleeve shape member 10 is removed, and makes to produce the member 12 according to Fig. 5, and this member no longer has the bottom now.
Be expressed as in the method step of " hollow extruding " at one, material is squeezed basically from the zone 13 according to Fig. 5 and is made hollow area 14 according to the member 15 of Fig. 6.
Be expressed as in the process step of " reduction moulding 1 " the hollow shaft zone 16 of making the member 17 among Fig. 7 basically by the zone among Fig. 6 14 at one.At this, be set for neck area 18 in the regional back moulding that forms described profile 3.
One follow thereafter, be expressed as in " reduction moulding 2 " course of working, the neck area from Fig. 7 18 makes by cold hobbing and is expressed as the hollow shaft zone 20 that 16 section attenuates and produces the member 21 among Fig. 8 there at least approx.
In the method step that is expressed as " finished product compacting ", make member 22 according to Fig. 9 with external frame shaping structure 3, this external frame shaping structure can see significantly that in Figure 10 this Figure 10 illustrates the enlarged portion X of Fig. 9.In identical course of working, a contoured structure 5, i.e. a polygonal that is used for the socket connection of a transmitting torque on being shaped on the end that deviates from toothing 3 in hollow shaft zone 23.This details illustrates with the ratio of amplifying in Figure 11, and this Figure 11 illustrates the sectional drawing according to the line XI of Fig. 9.
This contoured structure 3 is so constructed, its mode is, a mould that is provided with anti-contoured structure is placed among Fig. 8 with around 19 zones of representing, the squeeze head (partly and with label 25 illustrating in Figure 10) that in addition a mandrel is imported in the interior profile in this zone 19 and make an annular moves, enters zone 19 and material is expressed in the toothing of mould towards end face 26 (referring to Fig. 8), thereby forms described toothing 3.At this,, also form a protuberance 27 as particularly finding out among Figure 10.
This protuberance 27 is fallen by turning on the line 28 according to Figure 12 in process " length turning ", makes the hollow shaft that forms the external frame 6 with its zone 4 and regional 3 and socket connections of toothing disposed thereon integratedly thus, as shown in Figure 1.
Have external frame 2 shown in Figure 13-19 and having the manufacturing of sleeve 7 of the external frame 6 of a socket connection.
In the process step that is expressed as " sawing ", form blank 30 according to Figure 13.
In course of working shown in Figure 14 " cup-shaped extruding ", make a cup-shaped member 31 with a cylindrical region 32 and a bottom 33.In method step shown in Figure 14 by also produce the interior profile 5 of socket connection described polygonal form, transmitting torque in the cold extrusion method step shown in Figure 14.
This contoured structure 5 can find out obviously that in Figure 15 this Figure 15 illustrates the view of observing from the arrow XV-XV direction of Figure 14.
In the course of working that is expressed as " perforation " according to Figure 16, described bottom 33 (Figure 15) is partly removed.
In the process step that is expressed as " turning 1 " according to Figure 17, the external diameter 34 of described sleeve shape member 7 is by turning.
In the method step that is expressed as " toothing reduction moulding ", in fact produce external frame 2 in the mode identical with in the method step of Fig. 9, making profile 3 according to Figure 19.
In this method step (wherein the sleeve 7 of Figure 19 is set up toothing profile 2), the squeeze head 35 that also axially is moved into a mandrel corresponding to profile 5 in the contoured structure 5 and makes an annular moves towards end face 36 (Figure 18), wherein material is pressed into this anti-contoured structure around this cylindrical outer diameter 34 moulds that place, that have the anti-shape of contoured structure 2 towards one from this end regions, in a course of working " turning 2 ", is removed according to Figure 19 at the protuberance 37 of this generation by cold hobbing.
Before or after engaging described member 4 and 7, can form the described zone 38 that for example can be used as bearing support by turning, turning goes out a cutting slot 39 (Einstich) in the zone, outer end of profile 3, and turning goes out a chamfering 40 and a tool withdrawal groove (Freistich) 41 on the end of described cylindrical region 38 equally.
Claims (9)
1. hollow shaft, comprise being arranged on and be used for transmitting torque on two end, better contoured structure, splined shaft profile for example, wherein, the diameter in the axle zone between these contoured structures is littler than these contoured structures diameter one of at least, it is characterized in that: this hollow shaft by or can form by two members, one of them member comprises described axle section and profile and the external frame that comprises the transmitting torque of a socket connection on this a side that deviates from described profile, wherein, other member is the member of a sleeve shape, and it comprises the interior profile of the transmitting torque of second profile and a socket connection.
2. by the described hollow shaft of claim 1, it is characterized in that: the moulding of the moulding of a profile of the section of described hollow shaft shape, contoured structure and this socket connection and/or described other member is undertaken by cold hobbing by a kind of solid blank.
3. by claim 1 or 2 described hollow shafts, it is characterized in that: between the interior profile of this socket connection and external frame, a press fit is set.
4. by the described hollow shaft of one of claim 1-3, wherein, these contoured structures that are arranged on these ends of this hollow shaft have different diameters, it is characterized in that: the contoured structure that has than minor diameter is set on this sleeve shape member.
5. method that is used to make particularly by one of claim 1-4 described hollow shaft, it is characterized in that: a hollow shaft section is provided with and is configured in an one diameter than contoured structure on the big end of shaft diameter, transmitting torque, for example be provided with the external frame of a splined shaft profile and transmitting torque that on opposite shaft end, be provided with, a socket connection, make for it, carry out at least one of following step:
A) cut next material blank by a kind of rod-shaped material fixed length,
B) carry out the first cup-shaped extruding, wherein, carry out a manufacturing with cup-shaped hollow area of solid extending portion by cold hobbing, wherein, this cup-shaped zone is at least approx corresponding to the internal diameter and the external diameter of described profile section,
C) carry out the second cup-shaped extruding, wherein, carry out the prolongation of described hollow area by cold hobbing by this extending portion,
D) bored a hole in the cup shell bottom,
E) hollow extruding wherein, is carried out the beginning of the manufacturing of hollow axis body by cold hobbing,
F) carry out first of diameter and wall thickness by cold hobbing and reduce the prolongation of moulding and hollow shaft section and and then be set for the neck area of the zone formation of the described profile of formation with respect to described hollow outer shaft diameter thickening,
G) carry out at least approx reducing the prolongation of moulding and hollow shaft section by cold hobbing from second of described neck shape zone,
H) by a mandrel being presented to the finished product compacting of the contour area that carries out external tooth structural type in the interior profile in the described contour area with same diameter, wherein, an annular extrusion head that surrounds described mandrel being squeezed in the end region of described end regions and at this is expressed in the anti-toothing of a mould material, this mould is set for around one and forms placing of toothing regionally, form an axial protuberance at this by cold hobbing
I) in case of necessity with step h) side by side by the external frame of cold hobbing in the described socket connection of region generating that deviates from described contour area of this hollow shaft,
J) described protuberance is fallen in turning.
6. by the described hollow shaft of claim 5, it is characterized in that: between each step, preferably at step b) and c), d) and e), e) and f), f) and g) and g) and h) between carry out a heat treatment, particularly soft annealing.
7. method that is used to make the sleeve of the interior profile with external frame shaping structure and a socket connection, this sleeve is characterized in that: have at least one in the following step especially for by one of a claim 1-6 described member:
A) cut next material blank by a kind of rod-shaped material fixed length,
B) carry out cup-shaped extruding,, preferably be pressed onto the interior profile that forms described socket connection on the finished product overall size simultaneously by cold-extruded at this,
C) bored a hole in the bottom,
D) turning external diameter,
E) make described external frame by cold hobbing, wherein, a mandrel that has corresponding to the profile of the interior profile of described socket connection imported in this be squeezed in the described end region opposite in profile and with an annular extrusion head that surrounds this mandrel with the bottom of boring a hole, and material is expressed in the anti-toothing of a mould at this, this mould forms placing of toothing around described being set for regionally, form an axial protuberance at this
F) finished size is arrived in this sleeve height turning, get rid of axial protuberance at this.
8. one kind is used to make particularly by the method for one of claim 1-7 described hollow shaft, it is characterized in that: carried out at least two in the following step before or after being contained in sleeve sleeve or pressure sleeve on this by socket connection:
A) at section of the internal turning described and profile that the wide one of this arbor wheel constitutes,
B) in the zone, outer end of this profile, make a cutting slot,
C) in the zone of this profile described in profile begin to locate chamfering of manufacturing,
D) in the zone of this profile described cylindrical in tool withdrawal groove of manufacturing in the end regions of profile.
9. by the described hollow shaft of claim 7, it is characterized in that: between each step, preferably at step d) and e) between carry out a heat treatment, particularly soft annealing.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102005043766 | 2005-09-13 | ||
| DE102005043766.4 | 2005-09-13 | ||
| DE102006007388.6 | 2006-02-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101263308A true CN101263308A (en) | 2008-09-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006800336069A Pending CN101263308A (en) | 2005-09-13 | 2006-09-02 | Hollow shaft and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101263308A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102425612A (en) * | 2011-12-01 | 2012-04-25 | 沪东重机有限公司 | Coupling for large-sized ship low-speed electric-control diesel engine strap high-pressure oil pump |
| CN103350346A (en) * | 2013-07-06 | 2013-10-16 | 江苏威鹰机械有限公司 | Power takeoff transmission shaft cold precision forging plastic forming process |
| CN103433703A (en) * | 2013-08-16 | 2013-12-11 | 江苏森威精锻有限公司 | Machining process of long hollow shaft |
| CN103482546A (en) * | 2012-06-14 | 2014-01-01 | 上海华东制药机械有限公司 | Manipulator for fully-automatic filling machine |
| CN107855730A (en) * | 2017-09-21 | 2018-03-30 | 上海力信电气技术有限公司 | Multistage hollow shaft docking calculation |
| CN108150550A (en) * | 2016-12-06 | 2018-06-12 | 米巴烧结奥地利有限公司 | Bearing cap |
| CN108356207A (en) * | 2017-01-05 | 2018-08-03 | 菲尔斯***有限责任公司 | Plasticization deforms hollow body wall especially section thickening method device manufacturing method machine |
| CN108838622A (en) * | 2018-06-25 | 2018-11-20 | 常州市胜彪标准件模具有限公司 | A kind of cold extruding processing method of anti-rotary seat |
| CN111001988A (en) * | 2019-12-19 | 2020-04-14 | 重庆阳登机电有限公司 | Motor shaft manufacturing process |
| CN113770666A (en) * | 2021-09-16 | 2021-12-10 | 浙江百达精工股份有限公司 | Method for manufacturing hollow rotating shaft and hollow rotating shaft of automobile driving motor |
-
2006
- 2006-09-02 CN CNA2006800336069A patent/CN101263308A/en active Pending
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102425612A (en) * | 2011-12-01 | 2012-04-25 | 沪东重机有限公司 | Coupling for large-sized ship low-speed electric-control diesel engine strap high-pressure oil pump |
| CN103482546A (en) * | 2012-06-14 | 2014-01-01 | 上海华东制药机械有限公司 | Manipulator for fully-automatic filling machine |
| CN103350346A (en) * | 2013-07-06 | 2013-10-16 | 江苏威鹰机械有限公司 | Power takeoff transmission shaft cold precision forging plastic forming process |
| CN103350346B (en) * | 2013-07-06 | 2016-06-08 | 江苏威鹰机械有限公司 | Power takeoff driving shaft cold closed-die forging plastic forming technique |
| CN103433703A (en) * | 2013-08-16 | 2013-12-11 | 江苏森威精锻有限公司 | Machining process of long hollow shaft |
| CN108150550A (en) * | 2016-12-06 | 2018-06-12 | 米巴烧结奥地利有限公司 | Bearing cap |
| CN108356207B (en) * | 2017-01-05 | 2021-02-19 | 菲尔斯***有限责任公司 | Method and machine for producing plastically deformable hollow body wall, in particular for thickening sections |
| CN108356207A (en) * | 2017-01-05 | 2018-08-03 | 菲尔斯***有限责任公司 | Plasticization deforms hollow body wall especially section thickening method device manufacturing method machine |
| US11007564B2 (en) | 2017-01-05 | 2021-05-18 | Felss Systems Gmbh | Method and device for thickening a plastically deformable hollow body wall of a hollow body, in particular in portions, and manufacturing method and machine for producing a hollow body |
| US11890667B2 (en) | 2017-01-05 | 2024-02-06 | Felss Systems Gmbh | Method and device for thickening a plastically deformable hollow body wall of a hollow body, in particular in portions, and manufacturing method and machine for producing a hollow body |
| CN107855730B (en) * | 2017-09-21 | 2019-10-22 | 上海力信电气技术有限公司 | Multistage hollow shaft interconnection method |
| CN107855730A (en) * | 2017-09-21 | 2018-03-30 | 上海力信电气技术有限公司 | Multistage hollow shaft docking calculation |
| CN108838622A (en) * | 2018-06-25 | 2018-11-20 | 常州市胜彪标准件模具有限公司 | A kind of cold extruding processing method of anti-rotary seat |
| CN111001988A (en) * | 2019-12-19 | 2020-04-14 | 重庆阳登机电有限公司 | Motor shaft manufacturing process |
| CN111001988B (en) * | 2019-12-19 | 2021-01-08 | 重庆登阳机电有限公司 | Motor shaft manufacturing process |
| CN113770666A (en) * | 2021-09-16 | 2021-12-10 | 浙江百达精工股份有限公司 | Method for manufacturing hollow rotating shaft and hollow rotating shaft of automobile driving motor |
| CN113770666B (en) * | 2021-09-16 | 2022-11-18 | 浙江百达精工股份有限公司 | Method for manufacturing hollow rotating shaft and hollow rotating shaft of automobile driving motor |
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Open date: 20080910 |