CN203889619U - Vibration resisting buffering swing arm with three-layer composite structure - Google Patents
Vibration resisting buffering swing arm with three-layer composite structure Download PDFInfo
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- CN203889619U CN203889619U CN201420182877.2U CN201420182877U CN203889619U CN 203889619 U CN203889619 U CN 203889619U CN 201420182877 U CN201420182877 U CN 201420182877U CN 203889619 U CN203889619 U CN 203889619U
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- swing arm
- honeycomb
- antivibration
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- wall thickness
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Abstract
The utility model relates to a swing arm structure, in particular to a vibration resisting buffering swing arm with a three-layer composite structure. The swing arm structure is used for precision shaft end face processing or end face hole drilling and performs transport and fixation in a swing arm mode. Problems caused by impact vibration generated from all kinds of actions of a swing arm are to be solved, the swing arm is allowed to transport and fix parts with high repeated positioning precision in a fast and stable way in short period, and processing precision and production efficiency of a precision shaft can be effectively improved. The vibration resisting buffering swing arm is formed by three layers, wherein upper and lower layers envelope a middle-layer honeycomb structure. The middle-layer honeycomb structure is a parallelly-symmetrical hexagon structure or an elliptical structure. Ration of long edges to short edges or long shafts to short shafts is between 0.8 and 1.2. Ratio of wall thickness to length of a cavity thin wall is between 0.2% and 3.7%. The ration of the wall thickness to the length of the cavity thin wall reduces in a segmented or continuous manner along with the increasing of the load in the length direction of the swing arm. A middle-layer honeycomb cavity is filled with vibration absorbing materials.
Description
Technical field
The utility model patent relates to swing arm structure when a kind of needs steadily transmit object and location with antivibration buffer action, be applicable to such as precise fine axial end automatic punching, its precise fine axle by swing arm, transmitted and be fixed on assigned address, require that the transmission cycle is short, repetitive positioning accuracy is high, efficiency is fast, the steady occasion such as reliable.
Background technology
Manufacture field, automation processing often run into product or part installation, transmission, fix, operate/process, remove stage makeup and costume, return the reciprocation cycle processes such as installation, when operation/processing request is not high, and while having abundant installation to adjust the time, these cyclic processs are easily realized.For having, operation requirement on machining accuracy, the reciprocation cycle cycle is short, location is installed, and to unload reload request steady etc., and difficulty of processing will promote greatly.Such as current, demand very huge accurate axial workpiece as very extensive in field application such as mobile phone, cameras at precision instrumentation, precision assembly and electronic product, the processing of the punching of its two ends end face or end face step, just belong to degree of automation require high, productive output large, accuracy of manufacture requirement is high, between part and part the cycle short, high-efficiency and precision processing has the advantages that technology difficulty is large.Guarantee that anti shock and vibration ability installed, transmits, fixedly has by product or part before operate/processing is one of gordian technique of this class circulation production.By swing arm, transmitted and fixing automation process, the antivibration buffer action of swing arm is very important.
The processing and manufacturing of the precise fine axial end of take punching is example, as Fig. 1, rotating disk 1 is delivered to precise fine axle 2 near swing arm 3, swing arm 3 holds up precise fine axle 2 when the P of position, swing arm 3 was fixed on precise fine axle 2 in V-arrangement detent mechanism in position P ' time, now, and the operation processing such as can punch, discharging afterwards, swing arm 3 are returned, and complete the repetitive cycling course of processing that one-period enters next part.The round action of swing arm 3 has been driven by cylinder 4.In a cyclic process, no matter swing arm, in position P or position P ' time, is all attended by impact shock, especially when repetition period in short-term more very.Impact shock directly causes improving work efficiency, even can not guarantee Working position precision, the dimensional accuracy of precise fine axle head face.Antivibration buffering of the present invention swing arm, designs for this problem.
Summary of the invention
The invention provides the swing arm of a kind of novel three-layer composite structure antivibration buffering, can effectively play antivibration buffer action.
The technical scheme adopting is as follows.Swing arm forms by three layers, and Fig. 2 is antivibration buffering swing arm structure schematic diagram, the AB part of corresponding diagram 1 swing arm 3.In Fig. 2, upper strata 5, lower floor's 6 its cross sectional shapes adopt U-shaped groove structure, and middle level 7 adopts vertical honeycomb structure; The honeycomb structure forming composite structure swing arm of envelope middle level, the upper and lower.Wherein middle level 7 honeycomb structures adopt deformation process to be easy to absorb energy of deformation material, and the upper and lower are designed to the shape of envelope middle level honeycomb structure, and blastic deformation energy is delivered to middle level honeycomb structure, improve resistance to bending and local impact resistance simultaneously.
The middle level honeycomb structure of swing arm, absorption power to vibratory impulse deformation energy, relevant with shape and structure under similar circumstances at thickness of honeycomb wall, described honeycomb structure cross sectional shape as shown in Figure 5, adopts Parallel Symmetric hexagonal structure, also can adopt ellipsoidal structure, in figure, take Parallel Symmetric hexagonal structure as example, a, b represents respectively the length of side on the short long limit of Parallel Symmetric hexagon, θ represents both sides angle.The long and short limit of Parallel Symmetric hexagon ratio, or oval long and short axis scale, scope is selected between 0.8～1.2, and effective absorption of comprehensive blastic deformation energy and swing arm flexural strength and stability are considered.
The antivibration buffer capacity of the middle level honeycomb structure of swing arm, also relevant with the cell wall thickness of honeycomb structure.The vertical honeycomb structure in described antivibration buffering swing arm middle level, the Parallel Symmetric hexagon that adopts or its honeycomb cell-wall thickness of ellipsoidal structure and average honeycomb cell-wall length ratio select between 0.2%～3.7%, the intensity of taking into account actv. distortion absorption power and swing arm, makes it to have substantially suitable load per unit deformability.
In the longitudinal direction, the flexural deformation load of bearing, impact size and influence are different in buffering swing arm.Described antivibration buffering swing arm is in degree direction, consider load-carrying capacity, damping cushion effect, design honeycomb cell-wall thickness changes or changes continuously with average honeycomb cell-wall length ratio segmentation, its cell wall thickness of position and cell wall length ratio that Bending load is large are little, and its cell wall thickness of position and cell wall length ratio that Bending load is little are large.
Except the effect of honeycomb structure distortion buffering and antidetonation energy-absorbing, antivibration padded coaming is filled in described antivibration buffering swing arm in honeycomb cavity.Make full use of cellular unit distortion crumpling process, absorb and consume impact shock energy of deformation, at utmost strengthen damping cushion effect.
Swing arm terminal with compact integral structure, processing technology is uncomplicated, and assembling is simple, and overall cost is low compared with the swing arm of other types antivibration buffering.
Accompanying drawing explanation
Fig. 1 is swinging arm schematic diagram.
Wherein: 1-rotating disk; 2-precise fine axle; 3-swing arm; 4-cylinder.
Fig. 2 is antivibration buffering swing arm figure AB segment structure schematic diagram in 1.
Wherein: 5-upper strata; 6-lower floor; 7-middle level.
Fig. 3 is the section-drawing of Fig. 2 in C-C direction
Wherein: 6-lower floor; 7-middle level.
Fig. 4 is the left view of Fig. 2.
Wherein: 5-upper strata; 6-lower floor; 7-middle level.
Fig. 5 is the partial enlarged drawing at I place in Fig. 3.
Wherein: a-length of short sides; B-length of long sides.
The specific embodiment
Precise fine axial end perforation processing with Fig. 1 is fabricated to example.As Fig. 1, rotating disk 1 is accepted the precise fine axle 2 that doffer falls, precise fine axle 2 is delivered near swing arm 3, swing arm 3 holds up precise fine axle 2 when the P of position, in position P ' time, precise fine axle 2 is fixed in V-arrangement detent mechanism to swing arm 3, now punch, axial end etc. operates processing operation, and discharging afterwards, swing arm 3 are returned, and complete one-period and enter next repetitive cycling process.The round action of swing arm 3 has been driven by cylinder 4.In a cyclic process, no matter swing arm, in position P or position P ' time, is all attended by impact shock, especially when repetition period in short-term more very.Impact shock directly causes improving work efficiency, even can not guarantee Working position precision, the dimensional accuracy of precise fine axle head face.Adopt antivibration buffering of the present invention swing arm, effective impact-absorbing vibration deformation energy, thus reach raising working accuracy, steady transmission fixing, minimizing wait time, the stabilization time of shortening swing arm reciprocation cycle.
Claims (5)
1. the antivibration of a three-layer composite structure buffering swing arm, is characterized in that the swing arm of antivibration buffering forms by three layers, and it at the middle and upper levels, its cross sectional shape of lower floor adopts U-shaped groove structure, and middle level adopts vertical honeycomb structure; Envelope middle level, the upper and lower honeycomb structure.
2. the vertical honeycomb structure in middle level in antivibration buffering according to claim 1 swing arm, is characterized in that honeycomb cross sectional shape adopts Parallel Symmetric hexagonal structure or ellipsoidal structure, and the long and short limit of Parallel Symmetric hexagon proportional range is between 0.8～1.2.
3. antivibration according to claim 1 cushions the vertical honeycomb structure in swing arm middle level, it is characterized in that cross section adopts ratio that Parallel Symmetric hexagon or ellipsoidal structure be characterised in that honeycomb cell-wall thickness and cell wall overall length between 0.2%～3.7%, has substantially suitable load per unit deformability.
4. antivibration buffering according to claim 1 swing arm, it is characterized in that honeycomb cell-wall thickness in the longitudinal direction changes or changes continuously with the ratio segmentation of cell wall overall length, its cell wall thickness of position that Bending load is large is little with the ratio of cell wall overall length, and its cell wall thickness of position that Bending load is little is large with the ratio of cell wall overall length.
5. antivibration buffering according to claim 1 swing arm middle level honeycomb structure, is characterized in that being filled with vibration absorptive material in honeycomb cell-wall cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420182877.2U CN203889619U (en) | 2014-04-08 | 2014-04-08 | Vibration resisting buffering swing arm with three-layer composite structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420182877.2U CN203889619U (en) | 2014-04-08 | 2014-04-08 | Vibration resisting buffering swing arm with three-layer composite structure |
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| Publication Number | Publication Date |
|---|---|
| CN203889619U true CN203889619U (en) | 2014-10-22 |
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| CN201420182877.2U Expired - Fee Related CN203889619U (en) | 2014-04-08 | 2014-04-08 | Vibration resisting buffering swing arm with three-layer composite structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104973416A (en) * | 2014-04-08 | 2015-10-14 | 广东工业大学 | Composite structure antivibration buffer arm |
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2014
- 2014-04-08 CN CN201420182877.2U patent/CN203889619U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104973416A (en) * | 2014-04-08 | 2015-10-14 | 广东工业大学 | Composite structure antivibration buffer arm |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141022 Termination date: 20150408 |
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| EXPY | Termination of patent right or utility model |