Motor external member and the package assembly of thin-wall sleeve
Technical field
This utility model is related to the package assembly of a kind of motor external member and thin-wall sleeve.
Background technology
Thin-wall sleeve will smoothly load external member, must have therebetween gap, and thin-wall sleeve is cylindrical to be joined with external member endoporus
After conjunction, welded with Laser Welding, luminous energy penetrates thin-wall sleeve(The wall thickness of thin-wall sleeve is very thin, can be to below 0.1mm)Reach external member
Surface, makes thin-wall sleeve be welded together with external member.If the cylindrical gap and external member endoporus between of thin-wall sleeve is larger, thin
The molten metal that wall set fusing is formed is not enough to fill gap, and does not allow filled, and thin-wall sleeve not only can not be made to weld with external member
It is connected together, and the defects such as perforation, scaling loss are formed on thin-wall sleeve, gap length is related to welding success or failure.Therefore, eliminate or subtract
Little thin-wall sleeve and external member gap between the two, is a key of welding success or failure.
Content of the invention
The purpose of this utility model is to solve the problems referred to above of prior art presence and provides a kind of motor external member
With the package assembly of thin-wall sleeve, by elastic expansion body, thin-wall sleeve distending is coordinated with the ring muscle on external member, withdraw elastic expansion body
When, ring muscle constrains thin-wall sleeve, makes thin-wall sleeve keep expansion state, so that thin-wall sleeve expansion, the extent of rebound minimum of ring muscle, makes
Obtain the ring muscle nested arrangements on thin-wall sleeve and external member, reduce gap, be capable of smoothly reliable welding, it is to avoid thin-wall sleeve welds
Wear, scaling loss the problems such as appearance.
Above-mentioned technical purpose of the present utility model mainly solves by the following technical programs:Motor external member with thin
The package assembly of wall set, including thin-wall sleeve and the external member being separately positioned on thin-wall sleeve two ends, plant in the end of described thin-wall sleeve
In described external member accordingly, and Plug Division is fixedly connected the grafting part it is characterised in that described thin-wall sleeve and external member
It is not provided with the ring muscle of nested arrangements, the described portion of being fixedly connected is located at ring muscle cooperation.By elastic expansion body by thin-wall sleeve distending with
Contain ring muscle constraint thin-wall sleeve, make thin-wall sleeve keep expansion state, so that thin-wall sleeve expansion, the extent of rebound minimum of ring muscle,
Ring muscle cooperation on part, when withdrawing elastic expansion body, remaining position resilience, and the position of resilience does not need to weld, only embedding in ring muscle
The welding of set position, the ring muscle of not resilience(Extent of rebound very little, is negligible)Gap between the two can be greatly reduced,
In other words:After ring muscle molding, when withdrawing elastic expansion body, the ring muscle constraint thin-wall sleeve of rigidity, hinders ring muscle thin-wall sleeve nearby
Resilience so that gap reduces and is even eliminated between thin-wall sleeve and external member cylinder shape inner wall.Finally it is capable of smoothly
Reliable weld, it is to avoid appearance the problems such as thin-wall sleeve burn-through, scaling loss.
As improving further and supplementing to technique scheme, this utility model adopts following technical measures:
The ring muscle portion position welding of described thin-wall sleeve and external member.Due to by elastic expansion body on thin-wall sleeve expansion ring muscle,
Reduce the gap of thin-wall sleeve and external member welding position, be capable of smoothly reliable welding.
Ring muscle has two kinds of situations, is groove structure and bulge loop structure, therefore, the ring muscle compound mode of thin-wall sleeve and external member
There are two schemes, respectively:
The first scheme, the ring muscle of described external member is annular groove, and the ring muscle of described thin-wall sleeve is bulge loop, and described bulge loop is placed in
In grooved ring.
The cross section of described annular groove is rectangle, triangle or semicircle, and described bulge loop cross section is semicircle.To thin-walled
When set carries out tensioner ring muscle, because thin-wall sleeve has tension force it is impossible to be filled up completely with annular groove, therefore bulge loop is semicircle.
Second scheme, the ring muscle of described external member is bulge loop, and the ring muscle of described thin-wall sleeve is annular groove, and described bulge loop is placed in
In grooved ring.
Described bulge loop and groove shapes match, and cross section is rectangle, triangle or semicircle.Because external member is convex
Ring structure, during swollen thin-wall sleeve, the shape of annular groove is affected by the formation of bulge loop, then the form phase of the annular groove shape being formed and bulge loop
Seemingly, likewise, because thin-wall sleeve has tension force, for rectangle and triangle, seamed edge has certain radian and non-critical
Linear structure.
In order to improve the reliability being connected, described annular groove is identical with the quantity of bulge loop, at least two respectively.
This utility model has the advantage that:1st, by elastic expansion body, the ring muscle on thin-wall sleeve distending and external member is joined
Close, when withdrawing elastic expansion body, the ring muscle of rigidity is unable to resilience so that ring muscle nested arrangements on thin-wall sleeve and external member, reduces
Gap, is capable of smoothly reliable welding, it is to avoid appearance the problems such as thin-wall sleeve burn-through, scaling loss.2nd, ring muscle has two kinds of situations, is
Groove structure and bulge loop structure, therefore, the ring muscle compound mode of thin-wall sleeve and external member has two schemes, and two schemes are all
It is feasible.3rd, in order to improve the reliability being connected, described annular groove is identical with the quantity of bulge loop, at least two respectively.
4th, prepare convenient operating procedure simple and convenient, efficiency high.
Brief description
Fig. 1 is a kind of structural representation of the present utility model.
Fig. 2 is the first structural representation of the ring muscle being in nested arrangements in this utility model.
Fig. 3 is the second structural representation of the ring muscle being in nested arrangements in this utility model.
Fig. 4 is the third structural representation of the ring muscle being in nested arrangements in this utility model.
Fig. 5 is the structural representation inserting elastic expansion body in thin-wall sleeve of the present utility model.
Fig. 6 is the structural representation that the elastic expansion body both sides in Fig. 5 are applied with axial force.
Fig. 7 is that the ring muscle withdrawing rigidity after elastic expansion body both sides apply axial force is unable to resilience, thin-walled collar muscle and containing
Part ring muscle forms the structural representation of nested arrangements.
Specific embodiment
Below by embodiment, and combine accompanying drawing, the technical solution of the utility model is described in further detail.
Embodiment:Motor external member and the package assembly of thin-wall sleeve, as shown in figure 1, it includes thin-wall sleeve 1 and sets respectively
Put the external member 2 at thin-wall sleeve 1 two ends, the end of described thin-wall sleeve 1 is inserted in accordingly in described external member 2, and Plug Division 4
It is fixedly connected.Coiling bag 3 is nested with the outer wall of thin-wall sleeve main body section
The Plug Division of described thin-wall sleeve 1 and external member 2 is respectively equipped with the ring muscle of nested arrangements, described is fixedly connected 4, portion
At ring muscle cooperation.As seen in figs. 5-6, by elastic expansion body 5, thin-wall sleeve distending is coordinated with the ring muscle on external member, such as Fig. 7
Shown, when withdrawing elastic expansion body, the ring muscle of rigidity is unable to resilience, remaining position resilience, and the position of resilience does not need to weld, only
In the position welding of ring muscle nesting, the ring muscle of not resilience can greatly reduce gap between the two, is capable of smoothly reliable weldering
Connect, it is to avoid appearance the problems such as thin-wall sleeve burn-through, scaling loss.
In the present embodiment, the ring muscle portion position welding of described thin-wall sleeve 1 and external member 2.Due to by elastic expansion body 5 thin
Expansion ring muscle 11 on wall set 1, reduces the gap between thin-wall sleeve 1 and external member 2 welding position, is capable of smoothly reliable weldering
Connect.
Specifically, ring muscle has two kinds of situations, is groove structure and bulge loop structure, therefore, thin-wall sleeve 1 and external member 2
Ring muscle compound mode has two schemes, selects a kind of scheme in actual application.
Two schemes are respectively:
The first scheme, the ring muscle 21 of described external member is annular groove, and the ring muscle 11 of described thin-wall sleeve is bulge loop, described bulge loop
It is placed in grooved ring.
The cross section of described annular groove is rectangle, triangle or semicircle, and described bulge loop is semicircle.Thin-wall sleeve is carried out
During tensioner ring muscle, because thin-wall sleeve has tension force it is impossible to be filled up completely with annular groove, therefore bulge loop is semicircle.As shown in Figures 2 and 3, divide
Do not show annular groove cross section be rectangle and semicircular assembling structure.
Second scheme, the ring muscle 21 of described external member is bulge loop, and the ring muscle 11 of described thin-wall sleeve is annular groove, described bulge loop
It is placed in grooved ring.
Described bulge loop and groove shapes match, and cross section is rectangle, triangle or semicircle.Because external member 2 is
Bulge loop structure, during swollen thin-wall sleeve, the shape of annular groove is affected by the formation of bulge loop, then the form phase of the annular groove shape being formed and bulge loop
Seemingly, likewise, because thin-wall sleeve 1 has tension force, for rectangle and triangle, seamed edge has certain radian and non-critical
Linear structure.As shown in figure 4, showing that the cross section of bulge loop is semicircular assembling structure.
In order to improve the reliability being connected, described annular groove is identical with the quantity of bulge loop, at least two respectively.
The method preparing the package assembly of motor external member and thin-wall sleeve, including step be:
A, prepare the external member 2 that connecting portion has ring muscle 21;
B, thin-wall sleeve 1 insertion external member 2;
C, it is built into elastic expansion body 5 in thin-wall sleeve 1;
D, to elastic expansion body 5 apply pressure, make on thin-wall sleeve 1 formed ring muscle 11, the thin-wall sleeve extent of rebound of ring muscle position
Minimum, i.e. ring muscle constraint thin-wall sleeve resilience, make thin-wall sleeve keep expansion state in ring muscle position, make the ring muscle on described thin-wall sleeve
Nested with the ring muscle of described external member;
E, withdraw elastic expansion body 5.
As shown in figure 5, placing elastic expansion body 5 in thin-wall sleeve 1, as shown in fig. 6, applying axially to elastic expansion body 5 both sides
Extruding force, carries out radial direction distending to thin-wall sleeve 1, so that thin-wall sleeve diameter is swollen and is adjacent to external member inwall, continues with axial compression power
Continuous applying, elastomer radial compression power also continues to increase, and the part that at this moment thin-wall sleeve 1 is adjacent to external member 2 inwall is supported
Cannot redeformation, on thin-wall sleeve 1 correspond to external member ring muscle 21 position, when ring muscle 21 be groove structure when, thin-wall sleeve 1 is at this
Position does not support, and continues deformation, the ring muscle 11 on thin-wall sleeve obtains external member under the effect of elastomer radial compression power
On ring muscle 21 support, formed bulge loop 11;When ring muscle 21 is bulge loop structure, is affected by bulge loop, thin-wall sleeve is formed recessed
The ring muscle 11 of ring structure.Then, withdraw the force to elastic expansion body 5, take out elastic expansion body 5, thin-wall sleeve is no longer influenced by radially squeezing
Pressure, elastic deformation disappears, and thin-wall sleeve diameter reduces so as to be partially broken away from external member inner wall surface(Except ring muscle 11 position),
Produce gap.Due to the supporting role of the good ring muscle 11 of rigidity, ring muscle 11 cannot resilience completely(When thin-walled sleeve wall thickness is larger),
Or not resilience(When wall thickness is less), so that the gap passed through between thin-wall sleeve and external member between the ring muscle that cooperates is greatly reduced
Even gapless, realizes smoothly reliable welding, it is to avoid appearance the problems such as thin-wall sleeve burn-through, scaling loss.
The foregoing is only preferred embodiment of the present utility model, be not limited to this utility model.Above-mentioned
In embodiment, this utility model can have various modifications and variations.All of the present utility model spirit and principle within, made
Any modification, equivalent substitution and improvement etc., should be included within protection domain of the present utility model.