CN103363059B - Resin welding mandrel, composite component and manufacture method thereof - Google Patents
Resin welding mandrel, composite component and manufacture method thereof Download PDFInfo
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- CN103363059B CN103363059B CN201210100292.7A CN201210100292A CN103363059B CN 103363059 B CN103363059 B CN 103363059B CN 201210100292 A CN201210100292 A CN 201210100292A CN 103363059 B CN103363059 B CN 103363059B
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Abstract
The present invention provides the resin welding mandrel of the bond strength that can easily improve resin periphery material and mandrel and uses composite component and the manufacture method thereof of this mandrel.Mandrel (20) is made to be embedded in the embedded hole (31) of resin periphery material (30) and carry out sensing heating, when the side face (21) that resin periphery material is fused to this mandrel is upper, by arranging planar inner wall face (32) in the embedded hole of resin periphery material, the side face of mandrel arranges the direction along crosscutting circumference formed and multiple ribbed teats (26) of circumferentially side by side configuration and be arranged in the par (25) of both end sides of multiple ribbed teat, by making the embedded hole of resin periphery material be nested in the side face of mandrel, the top making multiple ribbed teat contacts with planar inner wall face, and make par relative with planar inner wall face, sensing heating is utilized to make the material welding of resin periphery on jog (24) and par afterwards.
Description
Technical field
The present invention relates to by making mandrel be embedded in the embedded hole of resin periphery material and right
The entirety of mandrel carries out sensing heating and makes the material welding of resin periphery on the side face of mandrel
Resin welding mandrel and (following, the most also by its letter with mandrel in resin welding
Be referred to as mandrel) side face on welding resin periphery material and the composite component that shapes and system
The method making this composite component.
Background technology
In the past, the composite component quilt of welding resin periphery material on the side face of mandrel
It is used in various component, device.This composite component is being applied to the most electric-powered
In the case of the worm gear of transfer, in order to ensure reliability, the dress of steering wheel operation
The durability etc. put, it is desirable to reliably engage between mandrel with resin periphery material.
In the past, motion had several embedded hole by making mandrel be embedded in resin periphery material
In and carry out sensing heating come on the side face of mandrel the technology of welding resin periphery material.
Such as, have disclosed in following patent documentation 1 on resin forming article, fix metal wheel
The method of hub.In the method, first, to the resin contact surface of metal forming body,
The i.e. side face of mandrel implements concavo-convex processing.Resin forming article is formed and compares metal forming
The through hole of the diameter that the external diameter of body is slightly smaller.The concavo-convex machined surface of metal forming body is coated with
Cloth binding material, heats resin forming article and makes the diameter expansion of through hole, will
In metal forming body press-in through hole.Afterwards, by high-frequency induction heating, resin is made to become
The Metal contacts of shape thing is in more than melt temperature, and by resin forming article welding
On metal forming body.Use patent documentation 1 method, it is possible to manufacture expeditiously by
Flat gear that resin and metal are constituted, the such formed products of wheel.
In the manufacture method having worm gear described in following patent documentation 2.In the method
In, first, form the periphery circumferentially arranged in the periphery of metal mandrel concavo-convex
Portion, corresponding with the periphery jog with mandrel in the inner circumferential of resinous ring gear
Shape form the inner circumferential jog that circumferentially arranges.Between ring gear and mandrel
Sandwiched bonding agent and make periphery jog and inner circumferential jog fasten, afterwards, utilize
Metal mandrel is combined by high frequency welding with resinous ring gear.In patent
In the method for document 2, it can be ensured that the bonding between metal core axle and resin ring gear
Power, and the degree of freedom of design can be improved.
In making mandrel be embedded in the embedded hole of resin periphery material and carry out sensing heating
In conventional technology, such as arbitrary document disclosure of that of patent documentation 1 and 2,
Form concaveconvex shape on the side face of mandrel, improve by between resin periphery material and mandrel
Welding produce bond strength.Such as, in patent documentation 1, in order to improve joint
Intensity, implements the annular knurl processing etc. of 1mm～3mm.In patent documentation 2, in order to
Improve bonding force, the periphery of metal mandrel is formed outer sawtooth.
Patent documentation 1: Japanese Unexamined Patent Publication 2003-118006 publication
Patent documentation 2: Japanese Unexamined Patent Publication 2001-141033 publication
In conventional method, by forming the concaveconvex shape of mandrel significantly, improve
The resin periphery material bond strength relative to mandrel.
But, in the case of the concaveconvex shape forming mandrel significantly, utilizing rolling
Flower processing on mandrel formed concaveconvex shape time, add the bigger plus-pressure of man-hour requirement or
Need machining.And, mandrel is formed relatively along height (or degree of depth) direction
In the case of big concaveconvex shape, as described in documents 2, by resin
It is also provided with recessed with the shape corresponding with the concaveconvex shape of mandrel on the inner peripheral surface of periphery material
Convex form can be fitted together to.Therefore, for improving resin periphery material relative to core
The bond strength of axle, needs to spend the time.
Summary of the invention
Therefore, the present invention can easily improve between the material of resin periphery to provide
The resin welding mandrel of bond strength is the 1st purpose, uses this mandrel to improve to provide
The composite component of bond strength is the 2nd purpose.It addition, can easily carry to provide
The manufacture method of the composite component of the bond strength between high mandrel and resin periphery material is
3 purposes.
Even if in mandrel is embedded in the embedded hole of resin periphery material and carry out sensing and add
Heat, if the resin of resin periphery material does not enter sufficiently into the concavo-convex machined surface of mandrel,
The most also not melting of trickle gap can be produced between concavo-convex machined surface and resin periphery material
Connect part.Joint when producing non-weld, between mandrel and resin periphery material
Intensity can correspondingly reduce, resin periphery material relative to mandrel circumference bond strength,
The bond strength of central axial direction reduces.
In order to increase the bond strength between mandrel and resin periphery material, by mandrel
In the case of the concaveconvex shape of concavo-convex machined surface increases along height (or degree of depth) direction,
Under chimerism before welding, mandrel being spaced apart with resin periphery material contacts or connecing
Contacting surface is long-pending to be reduced.When carrying out sensing heating in this condition, it is impossible to utilize from mandrel
Heat make the inner peripheral surface of resin periphery material melt equably, produce non-puddle increase
Or hot-spot and have the part of the inhomogeneous deformation of resin.Even if outside resin
On the inner peripheral surface of all materials, concaveconvex shape is set, in concaveconvex shape and the resin periphery of mandrel
The part that the concaveconvex shape of material is inconsistent also can produce non-puddle, superheat section.
The following opinion of result new discovery: preventing superheat section and the utilization of resin
When sensing heating makes the material welding of resin periphery on mandrel, resin can not enter into core
The all sites of the jog of axle, generates non-weld on the surface of jog,
Bond strength can not be improved fully.
Based on this opinion, it is achieved the resin welding mandrel of the present invention of the 1st purpose, logical
Cross in making this mandrel be embedded in the embedded hole of resin periphery material and carry out sensing heating, and
Making the material welding of resin periphery on side face, this mandrel has multiple ribbed on side face and dashes forward
Portion and be disposed in the par of both end sides of ribbed teat respectively, the plurality of ribbed teat
Direction along crosscutting circumference is formed and configures the most side by side, is embedded at this mandrel
Time in the embedded hole of resin periphery material, between adjacent ribbed teat, it is formed with gap,
From the distance of the central axis of mandrel to par on complete cycle less than from central axis to
The distance at the top of ribbed teat.
Use the resin welding mandrel of the present invention, it is possible to utilize multiple ribbed teat to incite somebody to action
The whole composition surface of resin periphery material melts, and resin can enter sufficiently into mandrel
Gap between multiple ribbed teats and all sites of par.Therefore, it is possible to easily
Ground improves the bond strength between mandrel and resin periphery material.
Particularly preferably, the height of multiple ribbed teats is below 1mm, adjacent rib
Gap between shape teat is below 2mm.
Multiple ribbed teats are suitable for being set to highlight below 1mm laterally than par
Height.The width along central axis of the par of mandrel is particularly suitable for being set to adjacent
Ribbed teat between gap in 0.5 times～1 times of largest interval.
Realize the composite component of the present invention of the 2nd purpose, there is above-mentioned resin welding core
Axle and the welding resin periphery material on the side face of this mandrel.
Use this composite component, owing to using the mandrel of above-mentioned structure, therefore, it is possible to
Improve the bond strength between mandrel and resinous member.
Realize the present invention of the 3rd purpose by making mandrel be embedded in resin periphery material
Embedded hole is interior and carries out sensing heating and makes the material welding of resin periphery on the side face of mandrel
The manufacture method of composite component, prepare on side face, be provided with the direction along crosscutting circumference
Upper formation and multiple ribbed teats of configuring the most side by side and be arranged in ribbed teat
The mandrel of par of both end sides, prepare in embedded hole, be provided with smooth internal face
Resin periphery material, by making the embedded hole of resin periphery material be nested in the side face of mandrel
On, and make the top of multiple rib contact with smooth internal face, and make
Par is relative with smooth internal face, carries out sensing heating afterwards, makes resin periphery
Material welding is between multiple ribbed teats, multiple ribbed teat of mandrel and on par.
If so composite component is manufactured, owing to setting in the embedded hole of resin periphery material
The smooth internal face of horizontalization and make this planar inner wall face contact with multiple ribbed teats, therefore,
Can reliably melt the position contacted with ribbed teat in planar inner wall face.And,
If by melted fully and multiple ribbed teats of resin welding mandrel and multiple rib
Between shape teat relative to planar inner wall face and make it between ribbed teat all
Position welding, then the par of mandrel can with the planar inner wall face of resin periphery material
Enough weldings, it is possible to make the smooth wall of resin periphery material with enough intensity and mandrel
Side face engages.And, only by arrange on the side face of mandrel multiple ribbed teat with
Par, on the material of resin periphery arrange contact with multiple ribbed teats smooth in
Wall, it becomes possible to easily improve the bond strength of composite component.Accordingly, it is not necessary to
Resin periphery material is provided for the concaveconvex shape being fitted together to.
In the manufacture method of this composite component, preferably by making resin periphery material
Embedded hole is nested on the side face of mandrel, makes the inwall of par and resin periphery material
Face is the most relative.
Particularly preferably, the height of multiple ribbed teats is below 1mm, adjacent rib
Gap between shape teat is below 2mm.
Multiple ribbed teats are suitable for being set to highlight below 1mm laterally than par
Height.The width along central axis of the par of mandrel is particularly suitable for being set to adjacent
Ribbed teat between gap in 0.5 times～1 times of largest interval.
In the manufacture method of this composite component, in resin periphery, material is fused on mandrel
Afterwards, by cutting end face, the par removing mandrel is the most complete with resin periphery material
The part of welding.
Use the resin welding mandrel of the present invention, owing to having on side face along crosscutting
Multiple ribbed teats of the direction formation of circumference and par, therefore, it is possible to provide one
Plant the mandrel of the bond strength that can improve between the side face of mandrel and resin periphery material.
Use the composite component of the present invention, owing to using the mandrel of said structure, therefore,
Answering of a kind of bond strength that can improve between mandrel and resinous member can be provided
Close component.
Use the manufacture method of the composite component of the present invention, due on the side face of mandrel
Multiple ribbed teats and the par of the direction formation along crosscutting circumference are set, at resin
Planar inner wall face is set in the embedded hole of periphery material, makes side face and the resin periphery of mandrel
The embedded hole tabling of material also carries out sensing heating, therefore, it is possible to provide the one can
The manufacturer of the composite component of the bond strength between raising mandrel and resin periphery material
Method.
Accompanying drawing explanation
(a) of Fig. 1 is the composite component representing embodiments of the present invention, with section
Representing the front view of local, (b) is the side-looking of the local representing composite component with section
Figure.
(a) of Fig. 2 is that the master of the resin welding mandrel of embodiments of the present invention regards
Figure, (b) is the side view of the local representing resin welding mandrel with section.
Fig. 3 is that the ribbed of the resin welding mandrel representing embodiments of the present invention is dashed forward
The local wide figure risen.
(a) of Fig. 4 is the resin welding mandrel representing embodiments of the present invention
The sectional view of state before welding between rib and resin periphery material, (b) is table
Show the state after welding between the rib of resin welding mandrel and resin periphery material
Sectional view.
(a)～(e) of Fig. 5 is the composite component that embodiments of the present invention are described
The figure of manufacturing process.
Detailed description of the invention
Hereinafter, referring to figs. 1 through Fig. 5, embodiments of the present invention are described.
As shown in (a), (b) of Fig. 1, the composite component 10 of this embodiment in
Substantially circular plate shape centered by central axis L, has resin welding mandrel 20 He
Welding resin periphery material 30 on the side face 21 of this mandrel 20.This composite component is electricity
The dynamic power steering gear example of worm gear blank.Worm gear blank is by weekly form outside
Form gear grooved on face and the centre of the worm gear of driven steering device can be manufactured
Body.
As shown in (a), (b) of Fig. 2 and Fig. 3, the mandrel 20 of composite component 10 in
There is on central axis L direction the substantially circular plate shape of specific length, be provided with edge at center
Central axis L-shaped becomes the through hole 22 of constant cross-sectional shapes.The end face of mandrel 20
Be formed as smooth, other end is formed the hollow part 23 of annulus channel-shaped.Side face
21 are formed parallel to along central axis L, and have circumference total length on be set to ring-type
Jog 24 and two ends respectively shape in the direction along central axis L of jog 24
Become the par 25 that cross section is circular.
Jog 24 is by configuring the direction formation along crosscutting circumference the most side by side
Multiple ribbed teats 26 and constitute.Multiple ribbed teats 26 preferably along complete cycle with constant
Away from configuring equably.
The shape of each ribbed teat 26 is preferably: when sensing heating described later, respectively
The shape that ribbed teat 26 contacts with the inner surface of the embedded hole 31 of resin periphery material 30
Under state, it is easy to make the shape of resin melting, and preferably be prone to after fusing guarantee
The shape of the bond strength between side face and the resin component element of mandrel.It is therefore desirable to
The shape making the ribbed teat 26 of majority is identical, preferably makes whole ribbed teats 26
Shape is identical.
In this embodiment, whole ribbed teats 26 is all formed as same shape.
As it is shown on figure 3, each ribbed teat 26 is narrower in top 26a in the cross sectional shape of circumference
And the wider chevron of bottom 26b or general triangular shape.Two sides can be formed as flat
Face or curved surface etc. any one.If such shape, then when sensing heating described later,
Molten resin is easy to enter in the gap 27 between adjacent ribbed teat.
Top 26a can be curved surface or plane, it is also possible to is formed as pointed shape.Adjacent
Ribbed teat 26 between bottom 26b be preferably shaped to plane or curve form.
If such bottom 26b, then when sensing heating, it is possible to make molten resin fully
It is filled in the 26b of bottom.
The two sides of each ribbed teat 26 relative to top 26a can symmetry can also be
Asymmetric.The gradient of two sides does not distinguishingly limit, but each side relative to
The maximum angle θ of the normal of the side face 21 of mandrel 20 e.g. 30 degree～60 degree, preferably
It it is 40 degree～50 degree.If maximum angle θ is too small, between the most adjacent ribbed teat 26
Gap 27 relatively deep, therefore, when sensing heating described later, molten resin be difficult to into
Enter in gap 27.On the other hand, if maximum angle θ is excessive, the most adjacent ribbed is dashed forward
Gap 27 between portion 26 is shallower, accordingly, it is difficult to obtain outside ribbed teat 26 and resin
The locking power of machinery in circumference between all materials 30.
The each ribbed teat 26 formed along the direction of crosscutting circumference both can be relative to center
Axis L is parallel, it is also possible to tilt relative to central axis.If each ribbed teat 26 is
The shape parallel relative to central axis L, then can utilize forging to make mandrel 20.
It addition, the shape in the direction along central axis L of each ribbed teat 26 is at length direction
On can also be varied from, if but in constant cross-sectional shapes or convex form in total length,
Forging is then easily utilized to make mandrel 20.
The height H of each ribbed teat 26 is preferably below 1mm.This ribbed teat 26
Highly H be from central axis L to the top 26a of each ribbed teat 26 distance with from
Central axis L is to the difference of the distance of the bottom 26b between adjacent ribbed teat 26.If
The height H of each ribbed teat 26 is too high, the most adjacent gap between ribbed teat 26
The degree of depth of 27 is the deepest, and molten resin is difficult to enter sufficiently into.On the other hand, each ribbed
The height H of teat 26 is preferably more than 0.5mm, particularly preferably more than 0.7mm.
If the height H of each ribbed teat 26 is too low, then it is difficult to ensure that mandrel 20 and tree after welding
Between the material of fat periphery circumferentially and the locking power of machinery in direction of central axis L.
On this jog 24, the adjacent gap between ribbed teat 26 is preferably
Below 2mm, i.e. the largest interval D in gap 27 is preferably below 2mm.Adjacent
The largest interval D in the gap 27 between ribbed teat 26 is adjacent ribbed teat 26
Distance circumferentially between the 26a of top.Such as, at the top of each ribbed teat 26
In the case of 26a is pointed shape, largest interval D can be approximated to be ribbed teat 26
Top 26a between air line distance, be provided with flat at the top 26a of each ribbed teat 26
Face or curved surface and in the case of both sides are provided with corner, largest interval D can approximate
For the air line distance between the adjacent corners between ribbed teat 26.It addition, at each rib
The top 26a of shape teat 26 is curve form and in the case of being not provided with corner, maximum
Interval D can be approximated to be between the position of the actual contact of resin periphery described later material 30
Air line distance.
If the gap 27 between adjacent ribbed teat 26 is wide, then in sensing described later
During heating, can not be abundant to the heat that resin periphery material 30 supplies from each ribbed teat 26
Ground transmission.Accordingly, there exist the tree in the gap 27 between adjacent ribbed teat 26
The resin of fat periphery material 30 cannot be the most melted, is easily generated non-weld.The opposing party
Face, if the gap 27 between adjacent ribbed teat 26 is narrow, then owing to adding
The degree of depth of deep each ribbed teat 26, therefore overhang reduces, and is difficult to ensure that after fusing
Enough bond strengths between mandrel and resin periphery material 30.Adjacent ribbed teat
The maximal clearance D in the gap 27 between 26 is preferably more than 1mm.
The par 25 of mandrel 20 is located on the direction along central axis L and jog
24 adjacent positions, are i.e. located at the position adjacent with the both end sides of multiple ribbed teats 26
Put.This par 25 is constituted by with not having irregular face parallel for central axis L, excellent
Choosing is made up of the curved surface that cross section is round-shaped.Par 25 is formed as away from central axis L
Distance than the ribbed teat 26 of jog 24 top 26a away from central axis L away from
From little.By arranging par 25 with this distance, the top of multiple ribbed teats 26
Highly for exceeding the height of below 1mm laterally than par 25.This is highly preferred is
More than 0.5mm, particularly preferably more than 0.7mm.Therefore, if making resin periphery material
The planar inner wall face 32 described later of 30 is relatively heated with par 25, then can
The heat from the supply of multiple ribbed teats 26 is utilized to make material 30 welding of resin periphery smooth
In portion 25.
This par 25 distance away from central axis L be with adjacent ribbed teat 26 it
Between bottom 26b and central axis L between distance identical or less than adjacent ribbed
The distance between bottom 26b and central axis L between teat 26, but particularly preferably
Identical distance.After welding, by material 30 welding of resin periphery on par 25,
Can obtain along center between the two ends of each ribbed teat 26 and resin periphery material 30
The locking power of machinery in the direction of axis L, it is possible to increase bond strength.
The width W in the direction along central axis L of above-mentioned par 25 is preferably formed into
More than 0.5 times of the largest interval D in the adjacent gap 27 between ribbed teat 26.Logical
Cross and form par 25 with such width, when adjacent with the end of each ribbed teat 26
Position sensing described later add hanker being softened or melting time, at multiple ribbed teats
The side, both ends of 26, resin periphery material 30 also is able to be fused to smooth with enough width
Portion 25, it can be ensured that resin welding edge between mandrel 20 and resin periphery material 30
The locking power of machinery in the direction of central axis L.
The width W of this par 25 can be such as gap 27 largest interval D with
Under.If the width W of par 25 is wide, then there are outside par 25 with resin
The situation of the part of welding completely it is formed with between all materials 30.
Hollow part 23 and the through hole 22 of mandrel 20 are formed as required, its shape, big
Little is arbitrary.In this embodiment, hollow part 23 is formed as at the one of mandrel 20
The groove shape of the end face upper shed of side, and be formed as arriving the bottom 26b of jog 24
The degree of depth of inner side.Therefore, between the bottom 26b of hollow part 23 and jog 24
Lower thickness.If the lower thickness at this position, then can reduce thermal capacity, therefore exist
It is readily able to during heating heat up.
Hollow part 23 can be the groove being respectively provided in the both ends of the surface of mandrel 20, it is also possible to
It is to arrive the degree of depth of the position of the inner side of jog 24 on one or two end face
The hole that local is arranged.Furthermore, it is also possible to be between the both ends of the surface running through mandrel 20
The hole that mode local is arranged.
Such mandrel 20 is in the purposes of the composite component obtained, i.e. in this enforcement
It is in the purposes of worm gear, be able to ensure that the intensity etc. of needs is desired in the case of mode
Character, and can by can sense heating various metals etc. constitute.This mandrel 20 shape
Become and be provided with through hole 22 and hollow part 23 by forging, there is jog 24 and smooth
The integral shape in portion 25.
According to forging, it is possible to do not remove material and arrange through hole 22 and hollow part 23
Deng, therefore, it is possible to reduce the waste of material.It addition, according to forging, then with annular knurl
Processing difference, it is possible to freely set the shape of multiple ribbed teat 26, highly H,
The largest interval D in gap 27, position, size etc., by adjusting these, it is possible to really
Protect the bond strength being suitable for of resin periphery material 30.And, if formed many by forging
Individual ribbed teat 26, then need not from outside, side face be pressurizeed like that such as annular knurl processing and
Form jog 24, though the thickness between the bottom 26b of hollow part 23 and jog 24
Spend the most relatively thin, such as below 5mm, it is also possible on side face 21
It is readily formed ribbed teat 26.
Resin periphery material 30 is the welding resinous structure on the side face 21 of mandrel 20
Part.This resin periphery material 30 is by can be because of the quilt when configuring contiguously with mandrel
Mandrel 20 heats and is constituted by the thermoplastic resin of this heat fusing or softening, it is possible to according to
The purposes of composite component selects suitable material.This material is preferably, by embedded hole
When 31 sides are heated to more than melt temperature, the heat conduction of the degree that face side will not be melted
The material of property.
In this embodiment, in order to guarantee as the intensity required by worm gear,
And be prone to guarantee thermostability etc., use 6,6-nylon, 6-nylon, 4,6-
The polyamide such as nylon.Particularly, for can easily be ensured that the reasons such as intensity, 6-Buddhist nun
Dragon is appropriate, particularly mechanical strength, thermal characteristics, the M C Na イ of chemical property excellence
Mouth Application (ポリペン Co., Ltd. of Japan system, registered trade mark) is appropriate.It addition,
In order to ensure sliding, it is possible to use polyether-ether-ketone (PEEK), polyphenylene sulfide
(PPS), polyformaldehyde (POM) etc..
The resin periphery material 30 of this embodiment is in the form of a ring.The inner circumferential of resin periphery material 30
Face is close to and welding is on the side face 21 of mandrel 20.That is, as shown in (b) of Fig. 4,
Multiple ribbed on the side face 21 being located at mandrel 20 are dashed forward by the resin periphery material 30 of welding
Portion 26 fully buries underground, between resin periphery material 30 enters between each ribbed teat 26
Gap 27 is interior and is completely filled with, and is firmly bonded on each ribbed teat 26, and also
Welding is on par 25 fully.
So, when material 30 welding of resin periphery is on mandrel 20, multiple ribs
Shape teat 26 is fully buried underground, therefore, observes from the both ends of the surface side of composite component 10
Boundary line between the mandrel 20 arrived and resin periphery material 30, be formed as shown in Figure 1 by
It is round-shaped that the end of par 25 is constituted.It addition, the periphery of resin periphery material 30
Shape and thickness are formed as the size including the allowance of the tooth etc. of worm gear.
Then, the method illustrating to manufacture composite component 10.
When manufacturing composite component 10, via following operation: prepare resin periphery material 30
Preparatory process with mandrel 20；The embedded hole 31 making resin periphery material 30 is nested in mandrel
The side face 21 of 20 and make the chimeric operation of combined member 40；By mandrel 20 is carried out
Sensing heating and by resin periphery material 30 welding on the side face being nested in mandrel 20
Fusion bonding process；Realize the preprocessing operation of the precision as composite component 10.
First, in preparatory process, as shown in (a), (b) of Fig. 5, formed respectively
Mandrel 20 and resin periphery material 30.
As shown in (b) of Fig. 5, resin welding mandrel 20 passes through forging at mandrel 20
Side face 21 on arrange circumferentially be arranged in parallel with along crosscutting circumference direction formed
The jog 24 of multiple ribbed teats 26 and the two ends being formed at multiple ribbed teat 26
The par 25 of side.The width W along central axis L of par 25 is formed larger than
0.5 times of the largest interval D in the adjacent gap 27 between ribbed teat 26.
After forging, it is also possible to implement machining etc. as required.In machining,
Both ends of the surface and central axis L-shaped are become the squareness of regulation or with specified accuracy shape
Become each several part.
As shown in (a) of Fig. 5, resin periphery material 30 is formed as ring by thermoplastic resin
Shape.In this embodiment, resin periphery material 30 has parallel with central axis L
The circular outer peripheral face 33 in cross section, there is the internal face corresponding with the side face 21 of mandrel 20
Embedded hole 31 and the both ends of the surface that are made up of plane.Thickness between both ends of the surface be located at
Jog 24 on the side face 21 of mandrel 20 and the par 25 of both sides thereof along center
The length in the direction of axis L is corresponding.
Embedded hole 31 has and is not provided with concaveconvex shape and is formed parallel to central axis L
Circular planar inner wall face 32, cross section.As long as this embedded hole 31 is along central axis L's
The length in direction is at least above the length of the central axial direction of the jog of mandrel, then
It can also be non-through hole that this embedded hole 31 can be through hole.In this embodiment,
This embedded hole 31 is formed through hole.
Embedded hole 31 is set to contact the shape at the top of ribbed teat as much as possible, excellent
Choosing contacts the shape at the top of whole ribbed teats.The planar inner wall face 32 of embedded hole 31
Internal diameter be suitably for can be chimeric with the jog 24 of mandrel 20 size.Specifically
Say, the internal diameter in planar inner wall face 32 be set to slightly smaller than jog 24 by top 26a
The maximum gauge constituted, such as, be set to little 0.4%～3%.If planar inner wall face 32
Internal diameter excessive relative to the maximum gauge of jog 24, then described later sensing heating
Time, it is impossible to utilize the heat of multiple ribbed teat 26 to heat smooth internal face 32 fully,
Molten resin is difficult to enter in the gap 27 between adjacent ribbed teat 26 sometimes.
On the other hand, if the internal diameter in planar inner wall face 32 is relative to the maximum gauge of jog 24
Too small, then resin periphery material 30 itself can deform.
Then, in chimeric operation, by making outside resin as shown in (c) of Fig. 5
The embedded hole 31 of all materials 30 is nested in the side face 21 of mandrel 20, and such as (a) institute of Fig. 4
Make the top contact planar inner wall face 32 of multiple ribbed teat 26 with showing and make smooth
Portion 25 is relative with planar inner wall face 32.By making mandrel 20 be embedded in resin periphery material 30
Embedded hole 31 in, and be formed with gap between adjacent ribbed teat 26.
In order to be fitted together to mandrel 20, such as, resin periphery material 30 can be made to add thermal expansion and embedding
It is placed on the side face 21 of mandrel 20.Such as, by heating furnace etc. to resin periphery
Material 30 heats, and the diameter expansion making embedded hole 31 is relative with the external diameter of mandrel 20
The diameter answered such that it is able to easily mandrel 20 is inserted in embedded hole 31.
Heating-up temperature can right according to the internal diameter of embedded hole 31 and the external diameter of mandrel 20
Ratio, the kind of thermoplastic resin, softening point, expansion rate etc. set.Such as, poly-
In the case of amide, heating-up temperature is preferably set to 130 DEG C～about 150 DEG C.It addition,
If heating-up temperature is too high, the form accuracy of resin periphery material 30 reduces the most sometimes, if adding
Hot temperature is too low, then the insertion of resin periphery material 30 needs to spend the time.
The side face 21 of mandrel 20 is with the Qian He of the embedded hole 31 of resin periphery material 30 such as
Can be by using the keeping parallelism degree such as fixture, carrying out centering while utilizing pressure
Machines etc. pressurize in the axial direction and the side face 21 of mandrel 20 are inserted resin periphery material 30
Embedded hole 31 in.Be fabricated in this wise combine mandrel 20 and resin periphery material 30 and
The combined member 40 become.
It addition, before this chimeric operation, in order to improve mandrel 20 and resin periphery material
Bond strength between 30, it is also possible at side face 21 and the resin periphery material 30 of mandrel 20
Embedded hole 31 in one or both on the cohesive force of various adhesivess etc. is set
Improve oxidant layer.
Then, in fusion bonding process, as shown in (d) of Fig. 5, sensing heating is utilized
Resin periphery material 30 is made to be fused on jog 24 and the par 25 of mandrel 20.This melts
Connect operation to use and can be carried out by the device that mandrel heats up, in this embodiment,
Use high-frequency induction heating apparatus.It is provided with in the apparatus for producing alternating magnetic field
Heating coil 50, by controlling the power supply to heating coil 50, it is possible to by mandrel 20
Side face adjusts to desired temperature.It addition, when heating, it is possible to make combined member
40 rotate against centered by central axis L with heating coil 50.
When heating, by making heating coil 50 flows high frequency electric, and to mandrel
20 carry out sensing heating, and the surface temperature of mandrel 20 maintains composition resin periphery material
Within the scope of the temperature more than melt temperature of the resin of 30.Such as, melted temperature is being used
In the case of degree is the resin of 200 DEG C～240 DEG C, the surface temperature of mandrel 20 is maintained
In 20 DEG C～the temperature of 60 DEG C higher than melt temperature.
Thus, the ribbed teat 26 of the side face 21 with mandrel 20 in resin periphery material 30
The part and the neighbouring part thereof that contact heat up under the effect of the heat of mandrel 20 and soften
Or it is melted.Then, the adjacent resin melting between ribbed teat 26, enter into each
In gap 27 between ribbed teat 26, molten resin is close on jog 24.Separately
Outward, near adjacent with multiple ribbed teats 26 in resin periphery material 30, position is soft
Change or melted resin is close to the par 25 of mandrel 20 around.
It addition, in this fusion bonding process, it is also possible to multiple combined members 40 are bearing in
Sensing heating is carried out to multiple together on shaft-like fixture.As shaft-like fixture, such as
The through hole 22 running through each mandrel 20 can be used interior and fix, in this condition can
Fixture etc. with heating coil 50 relative movement.
After fusion bonding process, by dispelling the heat the most in atmosphere or to utilize coolant to carry out cold
But, solidify when molten resin is close to the side face of mandrel 20.
In this embodiment, preprocessing operation is implemented afterwards.In preprocessing operation,
The end face of resin periphery material 30 and the end face of mandrel 20 are carried out machining, such as shape
Become flat shape.Here, as shown in (e) of Fig. 5, by cutting end face, and
The width W along central axis L of par 25 is narrowed.The amount of cutting end face can be fitted
Work as adjustment, the largest interval D in the most adjacent gap 27 between ribbed teat 26
Below.Thus, the par 25 removing mandrel 20 is the most molten with resin periphery material 30
The part connect, can make par 25 and resin periphery material 30 on complete cycle until two ends
The state of complete welding till portion.The width W of par 25 can also be made by processing
For the largest interval D in gap 27 0.5 times～1 times.If the width W mistake of par 25
Narrow, then there is the card of mandrel 20 and the direction along central axis L of resin periphery material 30
Determine the situation that power reduces.
In this preprocessing operation, preferably by the such as precision of through hole 22, resin
The outer peripheral face of periphery material 30 depth of parallelism relative to central axis L, the right angle of both ends of the surface
The precision of each several parts such as degree is machined in the range of regulation.
Thus, the manufacture of composite component 10 as shown in Figure 1 is completed.
For the composite component 10 so obtained, if formed on through hole 22 keyway,
And on the periphery of resin periphery material 30, process desired teeth portion etc. accurately,
Then can be manufactured as the worm gear of final products.
If manufacturing composite component 10 as described above, then can make each be heated
The resin periphery material 30 that ribbed teat 26 contacts melts, and molten resin can be reliably
Enter all sites of the inside in gap 27 between each ribbed teat 26.Accordingly, it is capable to
Enough prevent non-weld, it is possible to make resin periphery material 30 reliably welding at core
On the side face 21 of axle 20.
And, if making the embedded hole 31 of resin periphery material 30 be nested in the week of this mandrel 20
Face 21 also carries out sensing heating, then can utilize each ribbed teat 26 being heated make with
The resin periphery material 30 and adjacent with jog 24 two of the position that jog 24 is adjacent
The resin periphery material 30 of the position of side melts.Thus, molten resin enters into ribbed
The inside in the gap 27 between teat 26, each ribbed teat 26 melts with resin periphery material 30
Connect, and the adjacent position of the both end sides at each ribbed teat 26, molten resin arrives
Par 25, par 25 and material 30 welding of resin periphery.Thus, jog 24 is whole
Body is embedded in the inside of resin periphery material 30 and is bonded securely.
After material 30 welding of resin periphery, not can be appreciated that concavo-convex from the both ends of the surface of mandrel 20
Portion 24, it is possible to obtain excellent outward appearance.It addition, by multiple ribbed teats 26 are melted
It is connected on resin periphery material 30, bond strength produced by welding can be improved, multiple
Can between side and the resin entered between each ribbed teat 26 of ribbed teat 26
Obtain the locking power of machinery of circumference.And, the both ends of multiple ribbed teats 26 with
The machinery card in the direction along central axis L it is obtained in that between resin on par 25
Determine power.Therefore, it is possible to make resin periphery material 30 with enough intensity weldings at mandrel 20
On.
And, on this mandrel 20, the width W of par 25 is formed as adjacent rib
More than 0.5 times of the largest interval D in the gap 27 between shape teat 26.During welding, join
Put the resin periphery material 30 between adjacent ribbed teat 26 at each ribbed teat 26
The lower degree that can be heated to melt fully of effect of heat, then with resin periphery material
The vicinity at the position that the ribbed teat 26 of 30 contacts also can be melted.Thus, it is possible to
Make the adjacent with ribbed teat 26 of resin periphery material 30 and the resin being melted fully
Reliably engage with the par 25 of mandrel 20, thereby, it is possible to guarantee mandrel 20 and tree
Enough bond strengths between fat periphery material 30.
Particularly, the width W along central axis L of par 25 is formed larger than phase
0.5 times of the largest interval D in the adjacent gap 27 between ribbed teat 26, outside resin
After week, material 30 was fused on the side face 21 of mandrel 20, cutting end face is so that mandrel 20 flat
The narrowed width in smooth portion 25.
Thus, when welding, it is possible to make the both end sides of resin periphery material 30 at width relatively
Wide par 25 is melted fully and reliably welding is on par 25.It addition,
Owing to cutting the end face of mandrel 20 after fusing, therefore, it is possible to obtain resin periphery material 30
With mandrel 20 until the composite component 10 of end welding the most fully.
Thus, in such manufacture process, it is not necessary to form mandrel 20 significantly
The concaveconvex shape of jog 24, it is not required that set on the inner surface of resin periphery material 30
Put concaveconvex shape.Therefore, it is possible to easily improve mandrel 20 and resin periphery material 30 it
Between bond strength.
Hereinafter, embodiment and comparative example are described.
Embodiment
Make the resin welding mandrel 20 shown in Fig. 2, by corresponding annular
The resin periphery material 30 of shape is nested on the side face of mandrel 20, by utilizing high-frequency induction
Heating carries out welding, makes the composite component of embodiment.
Resin welding mandrel 20 is made up of carbon steel, and maximum gauge is 60mm, thick
Degree is 16mm, and the both end sides at side face 21 is provided with the par 25 of 2mm, puts down at this
Multiple ribs of the direction formation along crosscutting circumference it are configured with the most side by side between smooth portion
Shape teat 26.The cross sectional shape of the circumference of each ribbed teat 26 is general triangular shape
Shape, the angle of top 26a is symmetrical relative to the normal drawn from central axis L,
For substantially 90 degree.The height of each ribbed teat 26 is 0.9mm, adjacent ribbed teat
The largest interval D in the gap between 26 is 1.9mm.On the other hand, resin periphery material
30 is M C Na イ ロ Application (Japan Port リ ペ ンコ Co., Ltd. system, registered trade mark)
The formed body of system, external diameter is 85mm, and the internal diameter of embedded hole 31 is 60mm, thickness
It is 19mm.
Sensing heating is carried out by the power supply controlled to coil so that the table of mandrel 20
Surface temperature is the substantially melt temperature of the resin constituting resin periphery material 30.
The composite component 10 obtained is cut off along central axial direction, observes adjacent
The cross section of the bottom 26b between ribbed teat 26, it is possible to confirm at both ends,
In the total length of par 25, resin can welding.It addition, in an embodiment, outside resin
The resin of all materials 30 is present in all positions of 26b bottom this fully, it is possible to confirm
Can be by bottom 26b welding fully.
Then, 6 composite components 10 are made in the same manner as described above, to mandrel 20 and tree
It is strong that fat periphery material 30 measures surrender along central axis L imposed load round about
Degree.Its result, maximum is 85.9kN, and minima is 62.3kN, and meansigma methods is
75.2kN。
Comparative example 1
The height of each ribbed teat of mandrel is designed as more than 1mm, by adjacent rib
The largest interval D in the gap 27 between shape teat 26 is designed as more than 2mm.Additionally,
All make composite component identically with embodiment.
The composite component 10 obtained is cut off along central axial direction, observes adjacent
The cross section of the position of the bottom 26b between ribbed teat 26, in comparative example 1, in phase
Between adjacent ribbed teat 26, particularly in 26b side, bottom, there are many places trickle
Non-welding position.
It addition, make 6 composite components 10, to mandrel 20 and material 30 edge, resin periphery
Central axis L imposed load round about and measure yield strength.Its result,
Big value is 40.3kN, and minima is 30.0kN, and meansigma methods is 34.2kN.Can be true
Recognizing compared with embodiment, yield strength is deteriorated.
Description of reference numerals
10, composite component；20, resin welding mandrel；21, the side face of mandrel；
22, through hole；23, hollow part；24, jog；25, par；26, rib
Shape teat；26a, top；26b, bottom；27, gap；30, resin periphery material；
31, embedded hole；32, planar inner wall face；33, outer peripheral face；40, combined member；
50, heating coil；L, central axis；H, highly；W, width.
Claims (7)
1. a mandrel, by making this mandrel be embedded in the embedded hole of resin periphery material
And carry out sensing heating, and make the material welding of above-mentioned resin periphery on the side face of this mandrel,
This mandrel has ribbed teat on above-mentioned side face and is disposed in above-mentioned ribbed respectively
The par of the both end sides of teat, this ribbed teat is multiple, along the side of crosscutting circumference
To being formed and configuring side by side along this circumference,
When above-mentioned mandrel is embedded in the embedded hole of above-mentioned resin periphery material, adjacent
Above-mentioned ribbed teat between be formed with gap,
It is less than on complete cycle from the distance of the central axis of above-mentioned mandrel to above-mentioned par
From above-mentioned central axis to the distance at the top of above-mentioned ribbed teat,
The height of above-mentioned multiple ribbed teat is below 1mm, and adjacent above-mentioned ribbed is dashed forward
Gap between portion is below 2mm,
The width along above-mentioned central axis of the par of above-mentioned mandrel is set to adjacent upper
State 0.5 times～1 times of largest interval in gap between ribbed teat.
Mandrel the most according to claim 1, wherein,
Above-mentioned multiple ribbed teat is set to highlight 1mm laterally than above-mentioned par
Following height.
3. a composite component, this composite component has the core described in claim 1 or 2
Axle and the welding resin periphery material on the side face of this mandrel.
4. a manufacture method for composite component, this manufacture method is fitted together to by making mandrel
In the embedded hole of resin periphery material and carry out sensing heating, and make above-mentioned resin periphery
Material is fused on the side face of above-mentioned mandrel,
Prepare on above-mentioned side face, be provided with multiple ribbed teat and be arranged in this ribbed teat
The above-mentioned mandrel of par of both end sides, the plurality of ribbed teat is along crosscutting circumference
Direction is formed and configures side by side along this circumference, from the central axis of above-mentioned mandrel to upper
The distance stating par is less than from above-mentioned central axis to above-mentioned ribbed teat on complete cycle
The distance at top, the height of above-mentioned multiple ribbed teats is below 1mm, adjacent
Gap between above-mentioned ribbed teat is below 2mm, the edge of the par of above-mentioned mandrel
The width of above-mentioned central axis is set to the gap between adjacent above-mentioned ribbed teat
0.5 times of large-spacing～1 times,
Prepare to be provided with the above-mentioned resin periphery of smooth internal face in above-mentioned embedded hole
Material,
By making the embedded hole of above-mentioned resin periphery material be nested in the side face of above-mentioned mandrel
On, and make the top of above-mentioned multiple ribbed teat contact with above-mentioned smooth internal face,
And make above-mentioned par relative with above-mentioned smooth internal face,
Carry out sensing heating afterwards, make above-mentioned resin periphery material be fused to above-mentioned mandrel
Multiple ribbed teats and above-mentioned par.
The manufacture method of composite component the most according to claim 4, wherein,
By making the embedded hole of above-mentioned resin periphery material be nested in the side face of above-mentioned mandrel
On, and make above-mentioned par the most relative with the internal face of above-mentioned resin periphery material.
The manufacture method of composite component the most according to claim 4, wherein,
Above-mentioned multiple ribbed teat is set to highlight 1mm laterally than above-mentioned par
Following height.
The manufacture method of composite component the most according to claim 4, wherein,
After above-mentioned resin periphery material is fused on above-mentioned mandrel, by cutting end face,
Remove the par of above-mentioned mandrel and the part of above-mentioned resin periphery material not welding completely.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210100292.7A CN103363059B (en) | 2012-04-05 | 2012-04-05 | Resin welding mandrel, composite component and manufacture method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210100292.7A CN103363059B (en) | 2012-04-05 | 2012-04-05 | Resin welding mandrel, composite component and manufacture method thereof |
Publications (2)
| Publication Number | Publication Date |
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| CN103363059A CN103363059A (en) | 2013-10-23 |
| CN103363059B true CN103363059B (en) | 2016-08-24 |
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| CN108469662B (en) * | 2017-02-23 | 2020-10-27 | 玉晶光电(厦门)有限公司 | Optical lens, assembling method thereof and lens barrel |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001141033A (en) * | 1999-11-12 | 2001-05-25 | Nsk Ltd | Worm wheel and its manufacturing method |
| JP2006194296A (en) * | 2005-01-12 | 2006-07-27 | Jtekt Corp | Composite gear and its manufacturing method and electric-powered power steering including composite gear |
| JP2007309512A (en) * | 2006-04-17 | 2007-11-29 | Nsk Ltd | Worm wheel, worm type speed-reducing mechanism, electric power steering device, and manufacturing method for worm wheel |
| WO2012029525A1 (en) * | 2010-09-03 | 2012-03-08 | 日本ガスケット株式会社 | Resin gear, and method and apparatus for producing same |
-
2012
- 2012-04-05 CN CN201210100292.7A patent/CN103363059B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001141033A (en) * | 1999-11-12 | 2001-05-25 | Nsk Ltd | Worm wheel and its manufacturing method |
| JP2006194296A (en) * | 2005-01-12 | 2006-07-27 | Jtekt Corp | Composite gear and its manufacturing method and electric-powered power steering including composite gear |
| JP2007309512A (en) * | 2006-04-17 | 2007-11-29 | Nsk Ltd | Worm wheel, worm type speed-reducing mechanism, electric power steering device, and manufacturing method for worm wheel |
| WO2012029525A1 (en) * | 2010-09-03 | 2012-03-08 | 日本ガスケット株式会社 | Resin gear, and method and apparatus for producing same |
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