CN104408242A - Double-layer round extrusion container magnitude of interference parametrization design method - Google Patents
Double-layer round extrusion container magnitude of interference parametrization design method Download PDFInfo
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- CN104408242A CN104408242A CN201410652970.XA CN201410652970A CN104408242A CN 104408242 A CN104408242 A CN 104408242A CN 201410652970 A CN201410652970 A CN 201410652970A CN 104408242 A CN104408242 A CN 104408242A
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Abstract
The invention discloses a double-layer round extrusion container magnitude of interference parametrization design method. In the method, an auxiliary test device is adopted and comprises a fixed block, a rotary shaft positioned at the front part of the fixed block and a fixed plate driven by the rotary shaft, wherein the edge of the fixed plate is provided with multiple test rods which are in axial symmetry; the test rods are provided with multiple laser ranging devices; the laser ranging devices point to the circle centers of radial planes in which the laser ranging devices are positioned. By virtue of the testing method with the auxiliary device, the whole parameters of a whole workpiece can be effectively measured; compared with a traditional testing method, the method disclosed by the invention obviously improves the interference degree calculation precision.
Description
Technical field
The present invention relates to a kind of interference magnitude parameterized designing method of double-layer circular extruding cylinder.Relate to Patent classificating number G06 to calculate; Calculate; Counting G06F electricity Digital data processing G06F17/00 is specially adapted to the digital calculating equipment of specific function or data processing equipment or data processing method G06F17/50 computer-aided design (CAD).
Background technology
Extrusion process is High Temperature High Pressure height friction process, and extruding tool and mould design and manufaction is the gordian technique that aluminium alloy extrusions extruding is produced, and not only affects product quality, production efficiency and delivery cycle, and is one of key factor determining production cost.
Recipient belongs to large-scale expendable part the most expensive in compression tool.Double-deck recipient interference combined complete can effectively reduce peak stress, improves the durability of recipient.Therefore, the choose reasonable of the magnitude of interference, becoming the important parameter of compression tool design, is also design difficulty.The magnitude of interference is too small, is not enough to reduce synthesis tensile stress value; Cross conference make lining produce plastic yield and change the difficulty of neck bush.Shrink value is selected suitably to make the recipient life-span improve 3-4 doubly, greatly reduces production cost.
At present, the main method of double-layer circular recipient magnitude of interference size design has two kinds.One is that theory calculate determines parameter in conjunction with personal experience, then carries out strength check methods; Another kind is the method adopting finite element software sunykatuib analysis.In existing method of testing, thinking that workpiece is a rigid body completely, not considering the problem on deformation of large-scale workpiece when carrying out calculating and measuring, cause follow-up interference connection procedure to occur error, cause whole increased periods, even workpiece is scrapped.
Summary of the invention
The present invention is directed to the proposition of above problem, and a kind of interference magnitude parameterized designing method of double-layer circular extruding cylinder of development, comprise auxiliary test unit, this servicing unit comprises:
Fixed block, be positioned at the turning axle of this fixed block front portion, by the shaft-driven shaft collar of this rotation, the edge of described shaft collar is provided with multiple reference test bars of rotational symmetry setting, described reference test bar is provided with multiple laser ranging system, and laser ranging system points to the center of circle of its sagittal plane, place;
Comprise the steps:
-play perpendicular workpiece, make the axle of cylindrical work vertical; Servicing unit is lifted on directly over a described perpendicular workpiece;
The horizontal level of-adjustment servicing unit, makes the center of circle of servicing unit shaft collar be positioned on the extended line of workpiece for measurement central axis; Vertically fall auxiliary test unit, make described multiple reference test bar parcel workpieces for measurement;
Multiple laser ranging systems described in-test, rotate described shaft collar, obtain workpiece for measurement outside surface parameter;
Surface parameter described in-use comprises nominal pressure, elastic modulus, interior external bushing original dimension, draws the stress value size of the layering radius of assembling and extruding two states, assembling pressure, each layer;
-theory calculate erection stress, on traditional batch radius formula, lame formula basis, suppose that recipient is full elastic stage, meets small deformation, under linear elasticity constitutive equation meets the condition of superposition principle, by inference formula first try to achieve two-layer between suit pressure state, interior pressure will be only had again and recipient stress state without interference superposes with suit pressure state, try to achieve the equivalent stress of optional position after recipient suit; Be rationally by the recipient stress inside the liner when interference is pressurizeed slightly larger than the situation judged result of lateral stress in outer lining, confirm as best preferred parameter, complete design.
By using the method for testing with servicing unit, effectively can measure whole parameters of whole workpiece, relative to traditional method of testing, the computational accuracy of interference degree obviously promotes.
Further, in order to ensure measuring accuracy, the axle center making auxiliary testing tool and described workpiece is needed to fix on the same line, and the mechanical mechanism of outside, such as crane is difficult to the fine setting accomplished in exact extension, and pretend as preferred embodiment, the front end of described fixed block is provided with guide rail, on guide rail, slide rail and the described turning axle of motion move on this slide rail.By arranging guide rail, the fine setting of position can be carried out at subsidiary device interior, exterior mechanical motion need not be relied on.
Further, in order to the workpiece for measurement of different-diameter size can be tested, the workpiece that especially diameter is larger, as preferred embodiment, described shaft collar comprises: multiple splicing block moved along shaft collar radius extended line direction; When the diameter of workpiece for measurement exceeds shaft collar diameter, described fixed block, to the direction motion of setting, makes the distance between described multiple reference test bars extend.
As preferred embodiment, described splicing block is connected with described fixed block by constraint slide rail.When needing the size of extend testing, controlling to rely on block to be opened along constraint slide rail direction, adopting slide rail can ensure the precision of movement.
More further difficult, in order to test the tubular workpiece of hollow, as preferred embodiment, proving installation also has the prod being fixed on shaft collar central authorities, and this prod has multiple laser ranging system.During use, this prod is goed deep in the tubular workpiece of hollow, the parameters such as the diameter of tubulose workpiece inner wall, surface can be tested.
Accompanying drawing explanation
In order to the technical scheme of clearer explanation embodiments of the invention or prior art, introduce doing one to the accompanying drawing used required in embodiment or description of the prior art simply below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is side view of the present invention
Fig. 2 is the schematic diagram of measuring workpieces external parameter of the present invention
Fig. 3 is the front view of shaft collar of the present invention
Fig. 4 is the front view of fixed block of the present invention and turning axle
Fig. 5 is the front view of splicing block of the present invention
Fig. 6 is the schematic diagram of splicing block open mode of the present invention
Fig. 7 is the schematic diagram that the present invention measures internal diameter
Fig. 8 is the schematic diagram that the present invention measures internal diameter
Embodiment
For making the object of embodiments of the invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, clear complete description is carried out to the technical scheme in the embodiment of the present invention:
As Figure 1-Figure 8: a kind of interference magnitude parameterized designing method of double-layer circular extruding cylinder, application auxiliary test unit, this servicing unit comprises:
With the fixed block 1 of the mechanical connection of outside, this fixed block 1 provides stable basis for auxiliary test unit, and inside is provided with necessary electric power system and examination and repair system etc.The front portion of this fixed block 1 is provided with turning axle 4, and this turning axle 4 under the control of instruction, can rotate.A shaft collar 3 is also provided with in front end, the edge of this shaft collar 3 is provided with multiple reference test bars 2 of rotational symmetry setting, and reference test bar 2 adopts the material of being partial to rigid body as far as possible, described reference test bar 2 is provided with multiple laser ranging system 21, and laser ranging system 2 points to the center of circle of its sagittal plane, place.
When starting to measure, mainly comprise the steps:
First, play perpendicular workpiece, make the axle of cylindrical work vertical; Be lifted on by servicing unit and described rise directly over perpendicular workpiece, carry out whole test process rising under vertical state, there is not trickle Bending Deformation in workpiece and the reference test bar 2 that can ensure to have equivalent length, ensures measuring accuracy.
Then, the horizontal level of adjustment servicing unit, makes the center of circle of servicing unit shaft collar be positioned on the extended line of workpiece for measurement central axis; Vertically fall auxiliary test unit, make described multiple reference test bars 2 wrap up workpiece for measurement.
Again, the multiple laser ranging dresses described in test
put21, rotate described shaft collar 3, make reference test bar 2 test the outside surface of whole workpiece for measurement, obtain workpiece for measurement outside surface parameter.Use described surface parameter to comprise nominal pressure, elastic modulus, interior external bushing original dimension, draw the stress value size of the layering radius of assembling and extruding two states, assembling pressure, each layer;
Finally, theory calculate erection stress, on traditional batch radius formula, lame formula basis, suppose that recipient is full elastic stage, meets small deformation, under linear elasticity constitutive equation meets the condition of superposition principle, by inference formula first try to achieve two-layer between suit pressure state, interior pressure will be only had again and recipient stress state without interference superposes with suit pressure state, try to achieve the equivalent stress of optional position after recipient suit; Be rationally by the recipient stress inside the liner when interference is pressurizeed slightly larger than the situation judged result of lateral stress in outer lining, confirm as best preferred parameter, complete design.
The plane of the front end of described fixed block 1 is provided with guide rail 11, this guide rail is two guide rails being arranged on the two edges that front plan parallels in the present embodiment, on guide rail 11, the slide rail 12 and the described turning axle 4 that are provided with motion move on this slide rail 12, by guide rail 11 and slide rail 12, described turning axle can voltuntary movement in two-dimensional space, the conveniently horizontal level of adjustment testing tool, the conveniently axis of alignment workpiece and proving installation.
Described shaft collar 3 comprises: multiple splicing block 31 moved along shaft collar 3 radius extended line direction, in the present embodiment owing to have employed 4 reference test bars 2, therefore 4 splicing blocks 31 can be adopted accordingly, during use, splicing block, to four centrosymmetric direction motions, namely expands and measures radius.
Described splicing block 31 is connected with described fixed block 1 by constraint slide rail 32.
There is the prod 5 being fixed on shaft collar 3 central authorities, this prod 5 is similar with reference test bar 2, with shaft collar 3 or splicing block 31 releasable connection, can adopt and be threaded, simultaneously at the position of setting mark, prevent the excessive infringement screw thread of twisting, cause the angle out of plumb of prod 5 or reference test bar 2 and shaft collar 3, affect test result, same, this prod 5 has multiple laser ranging system 21.
The above; be only the present invention's preferably embodiment; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to according to technical scheme of the present invention and inventive concept thereof and replace or change, all should be encompassed within protection scope of the present invention.
Claims (5)
1. an interference magnitude parameterized designing method of double-layer circular extruding cylinder, it is characterized in that applying auxiliary test unit, this servicing unit comprises:
Fixed block (1), be positioned at the turning axle (4) that this fixed block (1) is anterior, by the shaft-driven shaft collar of this rotation (3), the edge of described shaft collar (3) is provided with multiple reference test bars (2) of rotational symmetry setting, described reference test bar (2) is provided with multiple laser ranging system (21), and laser ranging system (2) points to the center of circle of its sagittal plane, place;
Comprise the steps:
-play perpendicular workpiece, make the axle of cylindrical work vertical; Servicing unit is lifted on directly over a described perpendicular workpiece;
The horizontal level of-adjustment servicing unit, makes the center of circle of servicing unit shaft collar be positioned on the extended line of workpiece for measurement central axis; Vertically fall auxiliary test unit, make described multiple reference test bars (2) parcel workpiece for measurement;
Multiple laser ranging systems (21) described in-test, rotate described shaft collar (3), obtain workpiece for measurement outside surface parameter;
Surface parameter described in-use comprises nominal pressure, elastic modulus, interior external bushing original dimension, draws the stress value size of the layering radius of assembling and extruding two states, assembling pressure, each layer;
-theory calculate erection stress, on traditional batch radius formula, lame formula basis, suppose that recipient is full elastic stage, meets small deformation, under linear elasticity constitutive equation meets the condition of superposition principle, by inference formula first try to achieve two-layer between suit pressure state, interior pressure will be only had again and recipient stress state without interference superposes with suit pressure state, try to achieve the equivalent stress of optional position after recipient suit; Be rationally by the recipient stress inside the liner when interference is pressurizeed slightly larger than the situation judged result of lateral stress in outer lining, confirm as best preferred parameter, complete design.
2. interference magnitude parameterized designing method of double-layer circular extruding cylinder according to claim 1, be further characterized in that: the front end of described fixed block (1) is provided with guide rail (11), on guide rail (11), the slide rail (12) of motion and described turning axle (4) are in the upper motion of this slide rail (12).
3. interference magnitude parameterized designing method of double-layer circular extruding cylinder according to claim 1 and 2, is further characterized in that: described shaft collar (3) comprising: multiple splicing block (31) along the motion of shaft collar (3) radius extended line direction;
When the diameter of workpiece for measurement exceeds shaft collar (3) diameter, described fixed block, to the direction motion of setting, makes the distance between described multiple reference test bars (2) extend.
4. double-layer circular recipient magnitude of interference Parameters design according to claim 3, is further characterized in that: described splicing block (31) is connected with described fixed block (1) by constraint slide rail (32).
5. double-layer circular recipient magnitude of interference Parameters design according to claim 1, be further characterized in that: also have the prod (5) being fixed on shaft collar (3) central authorities, this prod (5) has multiple laser ranging system (21).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410652970.XA CN104408242B (en) | 2014-11-14 | 2014-11-14 | Interference magnitude parameterized designing method of double-layer circular extruding cylinder |
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| CN201410652970.XA CN104408242B (en) | 2014-11-14 | 2014-11-14 | Interference magnitude parameterized designing method of double-layer circular extruding cylinder |
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| CN104408242B CN104408242B (en) | 2017-12-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109598032A (en) * | 2018-11-15 | 2019-04-09 | 中国直升机设计研究所 | A kind of helicopter blade root bushing magnitude of interference determines method |
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| CN101944143A (en) * | 2010-08-25 | 2011-01-12 | 一重集团大连设计研究院有限公司 | Interference magnitude parameterized designing method of double-layer circular extruding cylinder |
| CN102607438A (en) * | 2012-02-24 | 2012-07-25 | 南开大学 | Two-arm four-probe measurement device and method for measuring inner and outer diameters of end of steel tube |
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2014
- 2014-11-14 CN CN201410652970.XA patent/CN104408242B/en active Active
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| US20080237932A1 (en) * | 2007-03-30 | 2008-10-02 | Tokiwa Corporation | Application material extruding container and forming method of application material extruding container |
| CN201348604Y (en) * | 2009-01-14 | 2009-11-18 | 宝山钢铁股份有限公司 | Sensor for measuring plate shaping friction coefficient |
| CN101700537A (en) * | 2009-11-20 | 2010-05-05 | 北京科技大学 | Thin-wall high temperature alloy tubing simulation extrusion device |
| CN101944143A (en) * | 2010-08-25 | 2011-01-12 | 一重集团大连设计研究院有限公司 | Interference magnitude parameterized designing method of double-layer circular extruding cylinder |
| CN102607438A (en) * | 2012-02-24 | 2012-07-25 | 南开大学 | Two-arm four-probe measurement device and method for measuring inner and outer diameters of end of steel tube |
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