CN101994765A - Combined assembly and swinging arm assembly - Google Patents
Combined assembly and swinging arm assembly Download PDFInfo
- Publication number
- CN101994765A CN101994765A CN2010102466756A CN201010246675A CN101994765A CN 101994765 A CN101994765 A CN 101994765A CN 2010102466756 A CN2010102466756 A CN 2010102466756A CN 201010246675 A CN201010246675 A CN 201010246675A CN 101994765 A CN101994765 A CN 101994765A
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- China
- Prior art keywords
- combined type
- type member
- swing arm
- lining
- assembly
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
- F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
- F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
- F16C35/067—Fixing them in a housing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
- F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
- F16C19/06—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row or balls
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/54—Systems consisting of a plurality of bearings with rolling friction
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
- Mounting Of Bearings Or Others (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
- Moving Of Heads (AREA)
Abstract
The object of the invention is to provide a swinging arm assembly, capable of improving locating precision of swinging displacement along with a swinging arm and swinging speed, and capable of being manufactured with higher production efficiency and higher material availability factor. A combined assembly that can be formed the swinging arm assembly is also provided. The combined assembly is characterized in that it has a plurality of arm boards composed of aluminum alloy and a lining composed of AlSi series alloy, wherein the lining has a mounting part for mounting a bearing assembly, and a projection part projecting toward an external surface of the mounting part and having a joining surface joined with the plurality of arm boards, and the arm boards and the lining are integrated through diffusion joint.
Description
Technical field
The present invention relates to a kind of combined type member (E-block) and swing arm assembly (swing arm unit).Wherein, member (E-block) is one of component part of swing arm assembly, also can be described as head stack (head assembly).
Background technique
We know the swing arm assembly that is installed in use in the hard disk drive device (HDD).Fig. 9 is the schematic representation that swing arm assembly 900 in the past is described.Fig. 9 (a) is the sectional drawing of swing arm assembly 900, and Fig. 9 (b) is the sectional drawing of bearing unit 910 that constitutes the part of swing arm assembly 900, and Fig. 9 (c) is the sectional drawing of member (being E-block) 930 that constitutes the part of swing arm assembly 900.
Shown in Fig. 9 (a), swing arm assembly 900 in the past is to be made of the member 930 that bearing unit 910 and outer build-in fix on this bearing unit 910.
Shown in Fig. 9 (b), in the bearing unit 910, have axle (shaft) 912, this 912 axially on separately and with this 912 match 2 bearing 914A and 914B that are provided with and the sleeve (urceolus) 918 that covers these 2 bearing 914A and 914B.Internal surface that sleeve 918 has and the outer surface of 2 bearing 914A and 914B connects and the space between described 2 bearing 914A and 914B are toward the outstanding spacer portion 916 of inner surface side.The outer ring of 2 bearing 914A and 914B is by Bearing Steel (linear expansion coeffcient: 12.5 * 10
-6About) constitute.Sleeve 918 is by stainless steel (for example SUS303, linear expansion coeffcient: 17.2 * 10
-6About) constitute.In addition, in Fig. 9, symbol 950 expression coils.In Fig. 9 (b), symbol 920 expressions are used for the location link stopper with member 930 location.
Shown in Fig. 9 (c), member 930 has inner cylinder portion 932 and 2 arms 934, by aluminum alloy (linear expansion coeffcient: 23.7 * 10
-6About) constitute.Member 930, be will make by extrusion moulding rods and bars of aluminium alloy cut off, make aluminum alloy block after, this aluminum alloy block cut makes.
We also know a kind of swing arm assembly in the past in addition, its have axle, this axially on match separately and with this 2 bearings that are provided with, sleeve (for example, the patent documentation 1 or 2 that is arranged on the spacer ring between these 2 bearings and does not possess spacer portion.)。In patent documentation 1, described sleeve is by stainless steel (SUS304, linear expansion coeffcient: 16.3 * 10
-6About) constitute; In patent documentation 2, described sleeve is an alloy (linear expansion coeffcient: 11 * 10 by AlSi
-6～15 * 10
-6About) constitute.
In addition, according to the swing arm assembly of record in the patent documentation 2, as the constituent material of sleeve, having used than the easier AlSi that carries out cutting of stainless steel is alloy, thereby can constitute the higher sleeve of internal diameter circularity, follow the Location accuracy of shaking displacement so can further improve.And, as the constituent material of sleeve, because that employed AlSi is the weight ratio stainless steel of alloy is lighter, so can further improve the speed of shaking.
The open 2001-304252 communique of [patent documentation 1] Japan special permission
[patent documentation 2] international WO2004/036074 trumpeter's volume that discloses
But, swing arm assembly 900 in the past is in the swing arm assembly that the swing arm assembly or the patent documentation 2 of patent documentation 1 record are put down in writing, owing to need cut Al alloy block, make member one by one, thereby exist the lower problem of manufacturing efficiency (to cut 1 member and need 10 minutes.)。In addition, in the process of piece that cuts aluminum alloy, have a large amount of aluminum alloys and be cut and remove, thereby also have the lower problem of raw material utilization efficiency (2/3 aluminum alloy can be eliminated).
Summary of the invention
Therefore, the objective of the invention is to, provide a kind of swing arm assembly that can address the above problem, promptly a kind of swing arm assembly that can improve the Location accuracy of shaking displacement of following swing arm and shake speed and can produce with higher production efficiency and higher material utilization efficiency.In addition, the present invention also aims to provide a kind of combined type member that constitutes described swing arm assembly.
For reaching above-mentioned purpose, the inventor is through unremitting effort, finally expect with the swing arm assembly of patent documentation 2 records same, the sleeve that use is made of the AlSi alloy (corresponding) with " lining (spacer) " among the present invention, by diffusion bond that the arm in this sleeve and the member is integrated simultaneously, so just can be same with the swing arm of patent documentation 2 records, can improve the Location accuracy of shaking displacement of following swing arm and shake speed, can also produce swing arm with higher production efficiency and higher material utilization efficiency in addition, thereby finish the present invention.
[1] combined type member of the present invention is characterised in that, have a plurality of arm plates of constituting by aluminum alloy and be the lining that alloy constitutes by AlSi, wherein, described lining possesses the assembly department that is used for the installation shaft bearing assembly and is outstanding and have protuberance with described a plurality of arm plate engagement surface from the outside surface side of this assembly department, and described a plurality of arm plates and described lining form incorporate structure by diffusion bond.
By combined type member of the present invention, owing to will be that the lining that alloy constitutes uses as sleeve by AlSi, therefore if use combined type member of the present invention to make the swing arm assembly, just can be same with the swing arm assembly of patent documentation 2 records, improve and follow the Location accuracy of shaking displacement of swing arm and shake speed.
In addition, by combined type member of the present invention, as the material that constitutes lining, having used the AlSi than the easier cutting of stainless steel is alloy, so can constitute the higher sleeve of internal diameter circularity, follows the Location accuracy of shaking displacement thereby can further improve.And, as the constituent material of lining, because that employed AlSi is the weight ratio stainless steel of alloy is lighter, so can further improve the speed of shaking.
Moreover by combined type member of the present invention, a plurality of arm plates and lining can be realized integrated by diffusion bond, produce the combined type member.Therefore, need not to carry out the manufacturing of member one by one by the piece that cuts aluminum alloy again, so there is not the lower problem of manufacturing efficiency.And also can not exist in the process of the piece that cuts aluminum alloy has a large amount of aluminum alloys to be cut the situation of removing, so also there is not the lower problem of raw material utilization efficiency.
Therefore, combined type member of the present invention can constitute and can improve the Location accuracy of shaking displacement of following swing arm and the swing arm assembly that shakes speed, and this swing arm assembly can be made with higher production efficiency and higher material utilization efficiency.
In combined type member of the present invention, lining is meant to have the inner surface configuration that covers bearing unit, as the lining of sleeve use.
[2] in combined type member of the present invention, described AlSi is that the linear expansion coeffcient of alloy is preferably in 17 * 10
-6～21 * 10
-6Scope in.
When using sleeve and bearing unit assembling swing arm assembly, in the sleeve of more smaller at sleeve diameter (about 2 μ m) than bearing unit external diameter with bearing unit gently to press fit into.This be because, if with bearing unit with the weight sleeve (sleeve diameter than bearing unit external diameter bigger (about 5 μ m) time) of packing into, the circularity of bearing unit (outer ring) can produce deterioration, causes bearing performance to descend.On the other hand, when packing bearing unit the situation of sleeve into light pressure, if the operating temperature of HDD device raises, because the linear expansion coeffcient of sleeve is greater than the linear expansion coeffcient of bearing, thereby the internal diameter of sleeve can become bigger than the external diameter of bearing unit, the gap may occur between sleeve and the bearing unit.
Yet the present inventor learns by experiment, when AlSi is that the linear expansion coeffcient of alloy is 21 * 10
-6When following, can make the material (Bearing Steel (linear expansion coeffcient: 12.5 * 10 that constitutes bearing unit
-6About)) and to constitute the difference of the linear expansion coeffcient between the material (AlSi is an alloy) of lining very little by (8.5 * 10
-6About following), so the HDD device (for example 1.8 inches HDD devices or 2.5 inches HDD devices) with bearing unit of external diameter 6mm is not even in 80 ℃ of work down of upper limiting temperature of product work, can produce the gap between sleeve and the bearing unit yet.
In addition, the present inventor learns according to experiment, and AlSi is that the linear expansion coeffcient of alloy is 19 * 10
-6When following, can also make the difference of the linear expansion coeffcient between material (Bearing Steel) that constitutes bearing unit and the material (AlSi is an alloy) that constitutes lining littler by (6.5 * 10
-6About following), so the HDD device (for example 2.5 inches HDD devices or 3.5 inches HDD devices) with bearing unit of external diameter 8mm is not even in 80 ℃ of work down of upper limiting temperature of product work, can produce the gap between sleeve and the bearing unit yet.
Moreover the present inventor learns according to experiment, and AlSi is that the linear expansion coeffcient of alloy is 17 * 10
-6When following, can also make the difference of the linear expansion coeffcient between material (Bearing Steel) that constitutes bearing unit and the material (AlSi is an alloy) that constitutes lining littler by (4.5 * 10
-6About following), so the HDD device (for example 3.5 inches HDD devices) with bearing unit of external diameter 11mm is not even in 80 ℃ of work down of upper limiting temperature of product work, can produce the gap between sleeve and the bearing unit yet.
According to above-mentioned viewpoint, AlSi is that the linear expansion coeffcient of alloy is more near 12.5 * 10
-6, just can in large-scale more HDD device, use combined type member of the present invention, on the other hand, be the linear expansion coeffcient less than 17 * 10 of alloy if make AlSi
-6, then AlSi is the manufacturing of the alloy difficulty that becomes, being difficult to produce AlSi with higher production efficiency is the lining of metal alloy.
So, take all factors into consideration above-mentioned viewpoint, in combined type member of the present invention, AlSi is that the linear expansion coeffcient of alloy is preferably in 17 * 10
-6～21 * 10
-6Scope in.
In combined type member of the present invention, the diffusion bond of a plurality of arm plates and lining, can be by the pulse electrifying bonding apparatus carry out, can be in ultrasonic irradiation by hot pressing finish, can be carry out behind the patina that on the mating face of removing a plurality of arm plates and lining by corrosion, exists, can also be under the state that a plurality of arm plates and lining is placed on (for example in the hydrogen) in the reducing gas, to carry out.
Pass through said structure, because can be under the state that the oxide skin(coating) that may exist on the surface of the surface of arm plate and lining is removed, a plurality of arm plates and lining are carried out diffusion bond, so, can make a plurality of arm plates and lining integrated, thereby can produce high-intensity combined type member with higher engaging force.At this moment, aluminum alloy and AlSi are that alloy belongs to same metalloid, from this viewpoint, also can make a plurality of arm plates and lining integrated with higher engaging force.
In addition, the diffusion bond of a plurality of arm plates and lining also can be to carry out being situated between between arm plate and the lining to have under the state of the metal (for example copper, tin) that forms binary alloy.
In combined type member of the present invention, lining is that the pole of metal alloy is made through cutting by AlSi preferably.
AlSi is that the machinability of alloy is better, is the material that can cut the circular hole with high cylindricity.Therefore,, can use lower manufacture cost and higher production efficiency, produce combined type member with higher accuracy to shape according to said structure.
In combined type member of the present invention, lining can also be to be that the cylindric preformed member of metal alloy is processed into through forging by AlSi.
Forging processing is the higher processing method of manufacturing efficiency, so according to said structure, also can use lower manufacture cost and higher production efficiency, produces the combined type member with higher accuracy to shape.
In combined type member of the present invention, the arm plate is preferably made through punch process by aluminium alloy plate.
Punch process is the high processing method of manufacturing efficiency, therefore according to said structure, can produce the combined type member with lower manufacture cost and higher production efficiency.
[3] swing arm assembly of the present invention is the swing arm assembly that has the bearing unit that does not contain sleeve and be installed in the combined type member on the described bearing unit, and described combined type member is characterised in that, is to adopt combined type member of the present invention.
Swing arm assembly of the present invention, owing to be swing arm assembly with combined type member of the present invention, therefore be to improve the Location accuracy of shaking displacement of following swing arm and the swing arm assembly that shakes speed, and can make with higher production efficiency and higher material utilization efficiency.
[4] in swing arm assembly of the present invention, described bearing unit has: axle, this axially on the spacer ring that matches separately and with this and to set between 2 bearings being provided with and this 2 bearings, described assembly department has the internal surface that the outer surface with the outer surface of described 2 bearings and described spacer ring connects.
Like this, when the bearing unit that has a spacer ring in use is made the swing arm assembly, the swing arm assembly of said structure preferably.
[5] in swing arm assembly of the present invention, described bearing unit has: axle, this axially on separately and 2 bearings that match and be provided with this, described assembly department has: and the internal surface that connects of the outer surface of described 2 bearings and the space between described 2 bearings are toward the outstanding spacer portion of inner surface side.
Like this, when use does not have the bearing unit of spacer ring to make the swing arm assembly, the swing arm assembly of said structure preferably.
Description of drawings
Fig. 1 is the schematic representation of combined type member 130 and swing arm assembly 100 in the explanation mode of execution one;
Fig. 2 is the schematic representation that the manufacturing technology of combined type member 130 and swing arm assembly 100 in the mode of execution one is made in explanation;
Fig. 3 illustrates the schematic representation of making the diffusion bond engineering in the manufacture process of executing combined type member 130 in the mode one;
Fig. 4 is the schematic representation of combined type member 230 and swing arm assembly 200 in the explanation mode of execution two;
Fig. 5 is the schematic representation that the manufacturing technology of combined type member 230 and swing arm assembly 200 in the mode of execution two is made in explanation;
Fig. 6 is the schematic representation that the manufacturing technology of combined type member 330 and swing arm assembly 300 in the mode of execution three is made in explanation;
Fig. 7 is the schematic representation that the manufacturing technology of combined type member 430 and swing arm assembly 400 in the mode of execution four is made in explanation;
Fig. 8 is the schematic representation of the buffering ring 160 that the swing arm assembly uses in the variation of explanation mode of execution one;
Fig. 9 is the schematic representation that swing arm assembly 900 in the past is described.
Wherein: 10, pulse electrifying bonding apparatus; 12,14, electrode; 16,18, carbon sheet; 20, power supply; 100,200,300,400,900, swing arm assembly; 110,210,310,410,910, bearing unit; 112,212,912, axle; 114A, 114B, 214A, 214B, 914A, 914B, bearing; 116, spacer ring; 130,230,330,430, combined type member; 132,232,332,432, lining; 134,234, assembly department; 136,236, protuberance; 138,238, mating face; 142,144,242,244,342,344,442,444, arm plate; 150,250,350,450, coil; 160, buffering ring; 346, coil sets plate; 448, joint pad; 916,240, spacer portion; 918, sleeve; 920, location link stopper; 930, E-block; 932, inner cylinder portion; 934, arm; P, pressure.
Embodiment
Based on mode of execution shown in the drawings, combined type member of the present invention (being combined type E-block) and swing arm assembly are described below.In addition, for the parts that have same function among the figure identical symbol of mark then, and suitably the repetitive description thereof will be omitted.
Mode of execution one
Fig. 1 is the schematic representation of combined type member 130 and swing arm assembly 100 in the explanation mode of execution one.Fig. 1 (a) is the sectional drawing of swing arm assembly 100, and Fig. 1 (b) is the sectional drawing of the bearing unit 110 of use in swing arm assembly 100, and Fig. 1 (c) is the sectional drawing of the combined type member 130 of use in swing arm assembly 100.
Shown in Fig. 1 (a), the swing arm assembly in the mode of execution one has the bearing unit 110 that does not contain sleeve and is installed in combined type member 130 (the combined type member 130 in the mode of execution one) on this bearing unit 110.
Shown in Fig. 1 (b), bearing unit 110 have axle 112, this 112 axially on separately and with these 112 match 2 bearing 114A, 114B being provided with and be provided in spacer ring 116 between these 2 bearing 114A, 114B.The outer ring of bearing 114A, 114B is by Bearing Steel (linear expansion coeffcient: 12.5 * 10
-6About) constitute, spacer ring 116 is by stainless steel (SUS303, linear expansion coeffcient: 17.2 * 10
-6About) constitute.
Shown in Fig. 1 (c), combined type member 130 in the mode of execution one has a plurality of arm plates 142,144 of being made of aluminum alloy and is the lining 132 that alloy constitutes by AlSi, lining 132 has for the assembly department 134 of bearing unit 110 and outstanding and possess protuberance 136 with a plurality of arm plate 142,144 engagement surface 138 from these assembly department 134 outside surface side
A plurality of arm plates 142,144 and lining 132 have the integral structure that forms by diffusion bond.Assembly department 134 has the internal surface that the outer surface with the outer surface of 2 bearing 114A, 114B and spacer ring 116 connects.Coil 150 is installed in the combined type member 130.
As AlSi is alloy, has used Al80Si20 (linear expansion coeffcient: 18.5 * 10
-6).As aluminum alloy, used A5052 (linear expansion coeffcient: 23.8 * 10
-6).
In the combined type member 130 of mode of execution one, a plurality of arm plates 142,144 and lining 132 have the integral structure that forms by diffusion bond.
In the combined type member 130 of mode of execution one, lining 132 is that the pole of metal alloy carries out cutting and makes to AlSi.
In the combined type member 130 in mode of execution one, arm plate the 142, the 144th carries out punch process to aluminium alloy plate and makes.
Fig. 2 is the schematic representation that the manufacturing technology of combined type member 130 and swing arm assembly 100 in the mode of execution one is made in explanation.Fig. 2 (a) and Fig. 2 (b) are respectively the schematic representation of each manufacturing technology.
Fig. 3 illustrates the schematic representation of making the diffusion bond engineering in the manufacture process of executing combined type member 130 in the mode one.
As shown in Figure 2, the swing arm assembly 100 in the mode of execution one can be made according to the order that " combined type member manufacturing technology " reaches " engineering of installation shaft bearing assembly on the combined type member ".Below the engineering order is described.
1. combined type member manufacturing technology
At first, 2 arm plates 142 that are ready to constitute and 144, be lining 132 and the coil 150 that alloy constitutes by AlSi by aluminum alloy.Subsequently shown in Fig. 2 (a), by diffusion bond with 2 arm plates 142 and 144 and lining 132 integrated, at the coil assembly department of arm 142 coil 150 is installed then, thereby is finished the manufacturing of combined type member 130 (the combined type member 130 of mode of execution one).
As shown in Figure 3,2 arm plates 142 and 144 and the diffusion bond of lining 132 are after setting 2 arm plates 142 and 144 on the mating face of lining 132, use 2 electrodes, 12,14 clampings in the pulse electrifying bonding apparatus 10 also to exert pressure.Under this state, between 2 electrodes 12,14, transmit impulsive current by power supply 20 and carry out diffusion bond.Between electrode 12,14 and arm plate 142,144, be equipped with carbon sheet (carbon sheet) 18.Like this, the part that 2 arm plates 142,144 contact with lining 132 is heated, and mutual metallic material is realized mixing, thereby makes 2 arm plates 142,144 and the lining 132 can be integrated with higher engaging force.
2. installation shaft bearing assembly engineering on the combined type member
At first be ready to bearing unit 110 and combined type member 130.Then after the outer surface of the internal surface of combined type member 130 and bearing unit 110 is coated binder, shown in Fig. 2 (b), in the inner surface side of combined type member 130 gently to press fit into bearing unit 110, put into the dry certain hour of dryer subsequently, make adhesive hardens, thereby make bearing unit 110 and combined type member 130 integrated.
Like this, just finished the manufacturing of swing arm assembly 100 (the swing arm assembly 100 in the mode of execution one).
More than combined type member 130 in the mode of execution one and the swing arm assembly 100 in the mode of execution one are illustrated, the effect to combined type member 130 in the mode of execution one and the swing arm assembly 100 in the mode of execution one describes below.
Promptly, according to the combined type member 130 in the mode of execution one, because by AlSi is the function that lining 132 that alloy constitutes plays sleeve, make the swing arm assembly so use the combined type member 130 in the mode of execution one, same with the swing arm assembly of patent documentation 2 records, can improve the Location accuracy of shaking displacement of following swing arm and shake speed.
In addition, according to the combined type member 130 in the mode of execution one, as the material that constitutes lining 132, having used than the easier AlSi that carries out cutting of stainless steel is alloy, so can form the higher sleeve of internal diameter circularity, follow the Location accuracy of shaking displacement and shake speed thereby can improve.And as the material that constitutes lining 132, having used the AlSi lighter than stainless weight is alloy, thereby can further improve the speed of shaking.
In addition, a plurality of arm plates 142,144 and lining 132 are integrated according to the combined type member 130 in the mode of execution one by diffusion bond, thus can make the combined type member.Therefore, the piece that need not to cut aluminum alloy is made member one by one, thereby has solved the lower problem of manufacturing efficiency.And, also can not there be the situation that a large amount of aluminum alloys are removed in cutting in the process of the piece that cuts aluminum alloy, thereby have also solved the lower problem of raw material utilization efficiency.
Like this, the combined type member 130 of mode of execution one can constitute a kind of swing arm assembly, this swing arm assembly can improve the Location accuracy of shaking displacement of following swing arm and shake speed, and can manufacture with higher production efficiency and higher material utilization efficiency.
In addition, according to the combined type member 130 of mode of execution one, be 18.5 * 10 because AlSi is the linear expansion coeffcient of alloy
-6So, in the material (outer ring of bearing 114A, 114B: Bearing Steel (linear expansion coeffcient: 12.5 * 10 that constitutes bearing unit
-6About), spacer ring 116: stainless steel (SUS303, linear expansion coeffcient: 17.2 * 10
-6About)) and (AlSi is an alloy (linear expansion coeffcient: 18.5 * 10 to constitute the material of lining
-6)) between, linear expansion coeffcient bigger difference can not occur, and AlSi is that the lining of alloy can be manufactured with higher production efficiency.
In addition, combined type member 130 according to mode of execution one, the diffusion bond of a plurality of arm plates 142,144 and lining 132 is undertaken by the pulse electrifying bonding apparatus, therefore can be under the state that the oxide skin(coating) that may exist on the surface of the surface of arm plate 142,144 and lining 132 is removed, realize engaging of a plurality of arm plates 142,144 and lining 132, so can make a plurality of arm plates 142,144 and lining 132 integrated with higher engaging force, thereby can make high-intensity combined type member.At this moment, aluminum alloy and AlSi are that alloy is same metalloid, therefore from this viewpoint, also can make a plurality of arm plates and lining integrated with higher engaging force.
In addition, combined type member 130 according to mode of execution one, because lining 132 is to be that the pole of alloy is implemented cutting and made to AlSi, thereby can produce the combined type member with higher accuracy to shape with lower manufacture cost and higher production efficiency.
In addition, according to the combined type member 130 of mode of execution one, because arm plate the 142, the 144th, aluminium alloy plate implemented punch process makes, thereby can make the combined type member with lower manufacture cost and higher production efficiency.
On the other hand, swing arm assembly 100 according to mode of execution one, owing to be swing arm assembly with combined type member 130 of mode of execution one, thereby can improve the Location accuracy of shaking displacement of following swing arm and shake speed, and can manufacture with higher production efficiency and higher material utilization efficiency.
In addition, swing arm assembly 100 according to mode of execution one, owing to used combined type member 130 as member, it has the internal surface that the outer surface with the outer surface of 2 bearing 114A, 114B and spacer ring 116 connects, thereby is suitable for using the bearing unit 110 with spacer ring to make the swing arm assemblies just.
Mode of execution two
Fig. 4 is the schematic representation of combined type member 230 and swing arm assembly 200 in the explanation mode of execution two.Fig. 4 (a) is the sectional drawing of swing arm assembly 200, and Fig. 4 (b) is the sectional drawing of the bearing unit 210 of use in swing arm assembly 200, and Fig. 4 (c) is the sectional drawing of the combined type member 230 of use in swing arm assembly 200.
Fig. 5 is the schematic representation that the manufacturing technology of combined type member 230 and swing arm assembly 200 in the mode of execution two is made in explanation.Fig. 5 (a) and Fig. 5 (b) are respectively the schematic representation of each manufacturing technology.
The combined type member 230 of mode of execution two, its structure combined type member 130 with mode of execution one basically is identical, but the combined type member of mode of execution two is to use simultaneously with the bearing unit that does not have spacer ring, and this point is different with the combined type member 130 of mode of execution one.
Promptly, as shown in Figure 4, the combined type member 230 of mode of execution two have axle 212, this 212 axially on separately and with these 212 2 bearing 214A, 214B that match and be provided with, this combined type member with do not have the bearing unit of spacer ring to use simultaneously, have and internal surface that the outer surface of 2 bearing 214A, 214B connects and be provided with space between described 2 bearing 214A, 214B toward the assembly department 234 of the outstanding spacer portion 240 of inner surface side.
Like this, the combined type member 230 of mode of execution two is the combined type members that use simultaneously with the bearing unit that does not have spacer ring, different in this point with the combined type member 130 of mode of execution 1, but owing to a plurality of arm plates 242 that constitute by aluminum alloy, 244 and be that the lining 232 that alloy constitutes forms incorporate structure by diffusion bond by AlSi, therefore same with the combined type member 130 of mode of execution one, can constitute the swing arm assembly that can produce with higher production efficiency and higher material utilization efficiency, this swing arm assembly can improve the Location accuracy of shaking displacement of following swing arm and shake speed.
In addition, as shown in Figure 5, the swing arm assembly 200 of mode of execution two can be manufactured by the order that " combined type member manufacturing technology " reaches " engineering of installation shaft bearing assembly on the combined type member ".Below the engineering order is described.
1. combined type member manufacturing technology
At first be ready to 2 arm plates 242,244 of constituting by aluminum alloy and be lining 232, the coil 250 that alloy constitutes by AlSi.At this moment, prepare lining as lining 232, should have assembly department 234, internal surface that this assembly department 234 has and the outer surface of 2 bearing 214A, 214B connects and the space between described 2 bearing 214A, 214B are toward the outstanding spacer portion 240 of inner surface side.Subsequently, identical with mode of execution one, shown in Fig. 5 (a), 2 arm plates 242,244 and lining 232 are integrated by diffusion bond, at the coil assembly department of arm 242 coil 250 is installed then, is finished the manufacturing of combined type member 230 (the combined type member 230 of mode of execution two).
2. the engineering of installation shaft bearing assembly on the combined type member
At first be ready to bearing unit and combined type member 230.At this moment, as bearing unit, should prepare to set the axle 212 of bearing 214A and be in the bearing unit of separated state with bearing 214B.
Subsequently, after the outer surface of the outer surface of the internal surface of combined type member 230, the outer surface that has set the axle 212 of bearing 214A, bearing 214A and bearing 214B is coated binder, shown in Fig. 5 (b), to set pack into the inner surface side of combined type member 230 of the axle 212 of bearing 214A and bearing 214B with light pressure, put into the dry certain hour of dryer afterwards, make adhesive hardens, thereby make bearing unit 210 and combined type member 230 integrated.
Like this, just finished the manufacturing of swing arm assembly 200 (the swing arm assembly 200 of mode of execution two).
Mode of execution three
Fig. 6 is the schematic representation that the manufacturing technology of combined type member 330 and swing arm assembly 300 in the mode of execution three is made in explanation.Fig. 6 (a) and Fig. 6 (b) are respectively the schematic representation of each manufacturing technology.
The swing arm assembly 300 of mode of execution three, its structure swing arm assembly 100 with mode of execution one basically is identical, but not to set coil on a slice in 2 arm plates, but as shown in Figure 6, coil 350 is provided in the coil that was arranged in 342,344 minutes with 2 arm plates sets on the plate 346, this point is different with the swing arm assembly 100 of mode of execution one.
Like this, the swing arm assembly 300 of mode of execution three is provided in coil 350 and 2 arm plates 342, the coil that was arranged in 344 minutes sets on the plate 346, this point is different with the swing arm assembly 100 of mode of execution one, but owing to a plurality of arm plates 342 that constitute by aluminum alloy, 344 be that the lining that constitutes of alloy 332 forms integral structure by diffusion bond by AlSi, therefore same with the swing arm assembly 100 of mode of execution one, can improve the Location accuracy of shaking displacement of following swing arm and shake speed, and can manufacture with higher production efficiency and higher material utilization efficiency.
Mode of execution four
Fig. 7 is the schematic representation that the manufacturing technology of combined type member 430 and swing arm assembly 400 in the mode of execution four is made in explanation.Fig. 7 (a) and Fig. 7 (b) are respectively the schematic representation of each manufacturing technology.
The combined type member 430 of mode of execution four, its structure the combined type member 130 with mode of execution one basically are identical, but as shown in Figure 7, it has used 3 arm plates 442,444,446, and this point is different with the combined type member 130 of mode of execution one.In addition, shown in Fig. 7 (a), arm plate 444 and arm plate 446 are by diffusion bond, and arm plate 444, arm plate 446 and joint is incorporate with pad 448.
Like this, the combined type member 430 of mode of execution four has used 3 arm plates 442,444,446, this point is different with the combined type member 130 of mode of execution one, but owing to a plurality of arm plates 442 that constitute by aluminum alloy, 444,446 be that the lining that constitutes of alloy 432 forms integral structure by diffusion bond by AlSi, therefore same with the combined type member 130 of mode of execution one, can constitute the swing arm assembly that to manufacture with higher production efficiency and higher material utilization efficiency, and can improve the Location accuracy of shaking displacement of following swing arm and shake speed.
More than, based on above-mentioned embodiment combined type member of the present invention and swing arm assembly are illustrated, but the present invention is not as limit, only otherwise break away from the scope of aim of the present invention, can also adopt other mode of execution, for example, can be following variation:
(1) in above-mentioned mode of execution one to four, the diffusion bond of a plurality of arm plates and lining is undertaken by the pulse electrifying bonding apparatus, but the present invention is not as limit.For example, can also be in ultrasonic irradiation by hot pressing finish, can be carry out behind the patina that on the mating face of removing a plurality of arm plates and lining by corrosion, exists, can also be under the state that a plurality of arm plates and lining is placed on (for example in the hydrogen) in the reducing gas, to carry out.
(2) at above-mentioned mode of execution one to mode of execution four, be alloy as AlSi, use be Al80Si20 (linear expansion coeffcient: 18.5 * 10
-6), but the present invention is not as limit.For example, be alloy as AlSi, can also use in Al80Si20, to add the AlSiX alloy (linear expansion coeffcient: 18.0 * 10 of some iron
-6) headed by various AlSiX alloys and AlSi alloy etc.
(3) at above-mentioned mode of execution one to mode of execution four, as lining, use be to be the lining that the pole of metal alloy is made through cutting with AlSi, but the present invention is not as limit.For example, as lining, can also use by AlSi is the lining of the cylindric preformed member of metal alloy through the forging manufacturing.
(4) in above-mentioned mode of execution one or mode of execution two, as the arm plate that is used to install coil in 2 arm plates, use be arm plate 142,242 with curved part, but the present invention is not as limit.For example, as the arm plate that is used to install coil in 2 arm plates, can use does not have the arm of curved part plate yet.
(5) in above-mentioned mode of execution one, be behind adhesive-applying, with bearing unit 110 gently pressing fit into the inner surface side of combined type member 130, thereby finish the integrated of bearing unit 110 and combined type member 130, but the present invention is not as limit.Fig. 8 is in the variation of explanation mode of execution one, the schematic representation of the buffering ring 160 that uses when making swing arm assembly 100.For example, can also be bearing unit 110 that outer surface portions has been twined buffering ring 160 gently pressing fit into the inner surface side of combined type member 130, thereby finish the integrated of bearing unit 110 and combined type member 130.
Claims (5)
1. combined type member is characterized in that:
Have a plurality of arm plates of constituting by aluminum alloy and be the lining that alloy constitutes by AlSi,
Wherein, described lining possesses the assembly department that is used for the installation shaft bearing assembly and is outstanding and have a protuberance with described a plurality of arm plate engagement surface from the outside surface side of this assembly department,
Described a plurality of arm plate and described lining form incorporate structure by diffusion bond.
2. combined type member according to claim 1 is characterized in that:
Wherein, described AlSi is that the linear expansion coeffcient of alloy is 17 * 10
-6～21 * 10
-6Scope in.
3. swing arm assembly is characterized in that having:
The bearing unit that does not possess sleeve; With
Be installed in the combined type member on the described bearing unit,
Wherein, described combined type member is a combined type member as claimed in claim 1 or 2.
4. swing arm assembly according to claim 3 is characterized in that:
Described bearing unit has:
Axle;
This axially on separately and 2 bearings that match and be provided with this; And
Be provided in the spacer ring between these 2 bearings,
Described assembly department has the internal surface that the outer surface with the outer surface of described 2 bearings and described spacer ring connects.
5. swing arm assembly according to claim 3 is characterized in that:
Described bearing unit has: axle and this axially on separately and 2 bearings that match and be provided with this,
Described assembly department has: and the internal surface that connects of the outer surface of described 2 bearings and the space between described 2 bearings are toward the outstanding spacer portion of inner surface side.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009-180985 | 2009-08-03 | ||
| JP2009180985A JP2011034644A (en) | 2009-08-03 | 2009-08-03 | Collapsible e block, and swing arm unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101994765A true CN101994765A (en) | 2011-03-30 |
Family
ID=43763564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102466756A Pending CN101994765A (en) | 2009-08-03 | 2010-07-30 | Combined assembly and swinging arm assembly |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2011034644A (en) |
| CN (1) | CN101994765A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103174755A (en) * | 2011-12-21 | 2013-06-26 | 德昌电机(深圳)有限公司 | Method of mounting a shaft in a bearing carrier and bearing carrier |
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|---|---|---|---|---|
| US4754353A (en) * | 1986-12-19 | 1988-06-28 | Micropolis Corporation | Hard disk head positioner assembly |
| JPH03259467A (en) * | 1990-03-08 | 1991-11-19 | Tokico Ltd | Swing arm for magnetic disk |
| US5260847A (en) * | 1991-10-18 | 1993-11-09 | Maxtor Corporation | Sleeveless rotatable beryllium/aluminum actuator arm for a magnetic disc drive |
| JPH08329627A (en) * | 1995-05-30 | 1996-12-13 | Hitachi Ltd | Positioning actuator for magnetic disk device and small-sized magnetic disk device |
| US5808838A (en) * | 1990-02-09 | 1998-09-15 | Seagate Technologies, Inc. | Miniature head disc drive system voice coil with single coil and dual stationary magnets |
| JPH11215766A (en) * | 1998-01-23 | 1999-08-06 | Matsushita Electric Ind Co Ltd | Motor and motor-loaded desk device |
| JP2000030379A (en) * | 1998-07-14 | 2000-01-28 | Nhk Spring Co Ltd | Carriage for disk drive, and carriage base material |
| JP2000057719A (en) * | 1998-08-05 | 2000-02-25 | Seiko Instruments Inc | Suspension and manufacture of suspension and actuator for recording device |
| WO2004036074A1 (en) * | 2002-10-18 | 2004-04-29 | Yoshinari Yokoo | Bearing device, block for swing arm, and disk drive device |
| JP2004209490A (en) * | 2002-12-27 | 2004-07-29 | Neomax Co Ltd | Clad material for welding structure and welding structure member using the clad material |
-
2009
- 2009-08-03 JP JP2009180985A patent/JP2011034644A/en active Pending
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Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4754353A (en) * | 1986-12-19 | 1988-06-28 | Micropolis Corporation | Hard disk head positioner assembly |
| US5808838A (en) * | 1990-02-09 | 1998-09-15 | Seagate Technologies, Inc. | Miniature head disc drive system voice coil with single coil and dual stationary magnets |
| JPH03259467A (en) * | 1990-03-08 | 1991-11-19 | Tokico Ltd | Swing arm for magnetic disk |
| US5260847A (en) * | 1991-10-18 | 1993-11-09 | Maxtor Corporation | Sleeveless rotatable beryllium/aluminum actuator arm for a magnetic disc drive |
| JPH08329627A (en) * | 1995-05-30 | 1996-12-13 | Hitachi Ltd | Positioning actuator for magnetic disk device and small-sized magnetic disk device |
| JPH11215766A (en) * | 1998-01-23 | 1999-08-06 | Matsushita Electric Ind Co Ltd | Motor and motor-loaded desk device |
| JP2000030379A (en) * | 1998-07-14 | 2000-01-28 | Nhk Spring Co Ltd | Carriage for disk drive, and carriage base material |
| JP2000057719A (en) * | 1998-08-05 | 2000-02-25 | Seiko Instruments Inc | Suspension and manufacture of suspension and actuator for recording device |
| WO2004036074A1 (en) * | 2002-10-18 | 2004-04-29 | Yoshinari Yokoo | Bearing device, block for swing arm, and disk drive device |
| JP2004209490A (en) * | 2002-12-27 | 2004-07-29 | Neomax Co Ltd | Clad material for welding structure and welding structure member using the clad material |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103174755A (en) * | 2011-12-21 | 2013-06-26 | 德昌电机(深圳)有限公司 | Method of mounting a shaft in a bearing carrier and bearing carrier |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2011034644A (en) | 2011-02-17 |
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Application publication date: 20110330 |