CN104263902A - Heat and vibration combined aging device for residual stress homogenization - Google Patents
Heat and vibration combined aging device for residual stress homogenization Download PDFInfo
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Abstract
The invention provides a heat and vibration combined aging device for residual stress homogenization. The device consists of a vibration aging system (A) and a heat aging system (B), wherein most of the vibration aging system (A) is accommodated in bottom supports (11), an outer cover (12) and heat-insulating boards (13) of the heat aging system (B), bottoms of the three bottom supports (11) are contacted with the upper surface of a bottom fender (8) of the vibration aging system (A), the vibration aging system (A) and the heat aging system (B) are relatively positioned through adjustment of equal distances between the three bottom supports (11) and limiting rods of the bottom fender (8), gaps of combined parts of the two systems can be filled with heat-insulation cotton or heat-insulation felt for heat insulation. The device realizes residual stress homogenization by mainly using the heat and vibration combined action, and heat aging, vibration aging as well as heat and vibration combined experiments can be finished separately to a certain extent. The device has important application values for residual stress homogenization technologies in scientific research and actual production.
Description
Technical field
The invention discloses a kind of heat being applied to unrelieved stress homogenizing to shake compound ageing device, more particularly be a kind ofly can realize thermal life, device that oscillating aging emphasis implement compound timeliness, the invention belongs to mechanical design and produce and the technical field of application.
Background technology
Along with the stable development of national economy and the needs of scientific-technical progress, it is more and more higher with aerospace to be that the advanced person of representative manufactures the performance requriements of field to product.But the adverse consequencess such as the large-scale integral thin-walled workpiece that aircraft adopts often occurs machining deformation excessive problem in mechanical processing process, directly causes workpiece to be scrapped, construction delay; In aircraft engine, some hot junction key components are under the working conditions of high temperature and vibration, also can produce larger military service distortion, directly affect working order and the work-ing life of part; And space flight important Parts is because performance need, cost intensive, if scrap because of distortion, then loses huge.Scientific research result shows, causes the primary factor of these problems to be the unrelieved stress existed in blank.
At present, major way enterprise being eliminated unrelieved stress is thermal life and oscillating aging.
Thermal life refers to by heating workpiece, being incubated and cooling process, unrelieved stress is discharged by material under the effect in temperature field, reduces and homogenizing.Thermal life practical application is extensive, the successful of unrelieved stress homogenizing, but but has that the cycle is long, cost is high and temperature controls the problem of improper easy generation secondary stress.
Oscillating aging typically refer to when vibrate dynamic stress that workpiece produces superpose with unrelieved stress exceed Materials Yield Limit time, the viscous deformation that material generation is micro-, thus the internal stress of material internal is relaxed and homogenizing.Countries in the world are studied the mechanism of oscillating aging and technique from eighties of last century sixties, and its feature is presented as that cost is lower, the cycle is short and energy-conservation.Compare with thermal life, oscillating aging presents the trend substituted gradually.But oscillating aging as energy input by vibration, must be subject to exciting force, excited frequency and the isoparametric impact of exciting time from amechanical angle analysis, then occur that some perplex in the process of production application.Level such as aluminium alloy thick plate unrelieved stress homogenizing after oscillating aging can not reach requirement, under reason is specific operation, oscillating aging produces the specific vibration shape and dynamic stress, unusual effect is played to specific region, but the comprehensive homogenizing of unrelieved stress of realizing ideal is difficult to, simultaneously in order to ensure that timeliness part does not sustain damage, need the parameters such as exciting force, excited frequency and exciting time to be limited in rational scope.
The heat that the invention provides a kind of unrelieved stress homogenizing is shaken compound ageing device, to shake compound timeliness unrelieved stress homogenization process, also can realize the process of thermal life and oscillating aging for realizing heat.
Summary of the invention
1, object: the present invention is based on above-mentioned background, needs the size shape feature of the metal works of unrelieved stress homogenizing in producing for enterprise, and the heat of a kind of applicable actual condition process provided is shaken compound timeliness unrelieved stress homogenization device.Device temperature ranges depends primarily on heating tube power, is generally room temperature ~ 600 DEG C; Workpiece and shaking table combination treatment excited frequency and exciting force scope depend primarily on vibrator, be usually respectively 15 ~ 200Hz and 0 ~ 1kN.Therefore this device also can complete separately thermal life and oscillating aging to a certain extent, and heat is shaken Collaborative experiment.
2, technical scheme: a kind of heat disclosed by the invention is shaken compound timeliness unrelieved stress homogenization device, and it is made up of oscillating aging system A and thermal life system B.Position annexation between them is: oscillating aging system A major part contains in it by the collet 11 of thermal life system B, outer cover 12 and thermal baffle 13, the upper surface wherein keeping off 8 bottom three collets 11 with the end of oscillating aging system A contacts, and the relative position of oscillating aging system A and thermal life system B is located by the gag lever post equidistance adjusting three 11 to the end of collet gears 8, for the space of two system in combination parts, in order to heat insulating, can stuffed heat insulated cotton or heat insulation felt.Specifically can see Fig. 1.
Described oscillating aging system A comprises: vibrator 1, compression support 2, push bolt 3, heat insulating mattress 4, shaking table 5, supporting pad 6, back up pad 7, end gear 8 and vibrating controller 9.Position annexation between them is: push bolt 3 coordinates with the threaded hole compressing support 2 and forms hold-down gear, uses two cover hold-down gears the retaining plate of vibrator 1, heat insulating mattress 4 and shaking table 5 to be compressed symmetrically; Shaking table 5 is supported in back up pad 7 by supporting pad 6; Back up pad 7 is placed on the planar section of end gear 8; Gag lever post and shaking table 5 edge of end gear 8 keep equidistance; Vibrating controller 9 is connected by data line with vibrator 1.Specifically can see Fig. 2.
This vibrator 1 is that profile is overhanging two retaining plates of cylinder bottom for oscillating aging special permanent-magnet machine.Major function is that the signal accepting vibrating controller 9 carries out exciting.
This compression support 2 is U-shaped ironcasting, and one of them upper arm has threaded hole, vibrator 1, heat insulating mattress 4 is compressed with shaking table 5 to coordinate with push bolt 3.
This push bolt 3 is the thru-bolt that nominal diameter is larger.Major function coordinates vibrator 1, heat insulating mattress 4 to compress with shaking table 5.
This heat insulating mattress 4 material elects heat insulation felt or ceramic beaverboard as, and size coordinates with the retaining plate of vibrator 1 to be selected.Major function is heat insulation and transmitting vibrations energy.
This shaking table 5 is rectangular parallelepiped steel plate, platform has several through holes, for timeliness part is bolted on shaking platform.Major function ensures the vibration generation dynamic stress of workpiece along with shaking platform.
This supporting pad 6 shape is right cylinder, material selection plate mica, and quantity is at least three, and its Support Position is arranged on the nodel line place of the vibration shape according to vibration practical situation.Major function supports shaking table 5, to realize the vibration shape needed for oscillating aging.
This back up pad 7 shape is rectangular parallelepiped, material selection ceramic beaverboard.Major function is conducted heat to bottom of device in isolated temperature field, and reduce the ground vibration that oscillating aging process causes.
It is gag lever post, bottom surface and the earth surface of steel plate with welding that this end keeps off 8 structures.Major function supports whole device, carries out spacing, and facilitate oscillating aging system A and thermal life system B to locate to shaking platform.
This vibrating controller 9 shape is rectangular parallelepiped, and belong to home-built equipment, industrial control mainboard is equipped with in inside.Major function provides instruction for vibrator 1 carries out oscillating aging.
Described thermal life system B comprises: temperature regulator 10, collet 11, outer cover 12, thermal baffle 13, lifting eye bolt 14, heating tube 15 and temperature sensor 16.Position annexation between them is: temperature regulator 10 is connected by data line with heating tube 15; Collet 11 is pulled through bolt arrangement and is connected with outer cover 12, for accepting thermal baffle 13; Lifting eye bolt 14 uses nut to be connected with outer cover 12; Heating tube 15 is connected with outer cover 12 by nut, and gos deep into internal space with temperature sensor 16 by the through hole of outer cover 12 and thermal baffle 13.Specifically can see Fig. 3.
This temperature regulator 10 shape is rectangular parallelepiped.Major function is the monitoring data receiving temperature sensor 16, provides instruction for control heating tube 15 carries out heating.
This collet 11 is U-shaped steel parts, and quantity is four, the long sidewall of each collet with through hole, to use bolt arrangement to be connected with outer cover 12.Major function accepts thermal baffle 13, makes outer cover 12 and thermal baffle 13 become the main integral of thermal-insulating body.
This outer cover 12 is steel plate welding box body, and with the through hole of suitable quantity, and carry out loss of weight process at each side opening rectangular opening, rectangular opening is opened in the side coordinated with shaking table 5.Major function forms thermal-insulating body outer wall, is the main body of thermal life system B, forms assembling casing for connecting each assembly.
This thermal baffle 13 is rectangular parallelepiped ceramic beaverboard, has the inwall that outer cover 12 is close in five pieces of combinations.Major function forms enclosed space to carry out heat-insulation and heat-preservation, reduces the noise of oscillating aging process simultaneously.
This lifting eye bolt 14 is standardized component, and quantity elects four as.Major function is the folding coordinating wireline and derricking gear to realize thermal life system B entirety assembling casing.
This heating tube 15 is W type customization accessory, and resistance wire and magnesia powder are equipped with in inside, and quantity elects two as.Major function is heat energy by electric energy conversion, produces institute's heat requirement of thermal life.
This temperature sensor 16 is thermocouple type high temperature sensor, and model coordinates with temperature regulator 10 to be selected.Major function is the temperature field in monitoring assembling casing, is converted into voltage signal and returns to temperature regulator 10.
Interface plug in this device is standard six core plug, for connect each equipment data line between interface, model is HZ-8500.
Apparatus system software program is the exploitation of C++ programming language, and major function is that the related data being respectively used to oscillating aging and thermal life carries out treatment and analysis.
Wherein, the profile length of this shaking platform 4 is respectively 1000mm*700mm*20mm.
Wherein, the profile length of this outer cover 12 is respectively 1010mm*860mm*710mm, and thickness is 5mm.
In the present invention the principle of work of oscillating aging system A and operating mode as follows: exciting force is realized by the eccentricity of adjustment vibrator 1, and the excited frequency that controller 8 controls vibrator 1 is vibrated, and the effect making timeliness part be subject to shaking table 5 realizes oscillating aging.Principle of work and the operating mode of thermal life system B are as follows: vibrating controller 9 controls heating tube 15 and produces heat, realize the thermal life to workpiece.Temperature sensor 16 can detect the temperature field data in assembling case, and its signal passes to temperature regulator 10 through data line, by the collection to signal, computation and analysis process, achieves the closed-loop control to thermal life.
3, advantage and effect: the present invention is that a kind of heat is shaken compound timeliness unrelieved stress homogenization device, can realize the applying function of temperature and vibration.This device design science, structure is simple, and main application carries out heat to timeliness part to shake the process of compound timeliness unrelieved stress homogenizing.Also can complete separately thermal life and oscillating aging to a certain extent, and heat is shaken Collaborative experiment.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention
Fig. 2 is oscillating aging system A structural representation of the present invention
Fig. 3 is the thermal life system B structural representation that the present invention hides top and side thermal baffle 13
In figure, nomenclature is as follows:
A, oscillating aging system; B, thermal life system; 1, vibrator; 2, support is compressed; 3, push bolt; 4, heat insulating mattress; 5, shaking table; 6, supporting pad; 7, back up pad; 8, end gear; 9, vibrating controller; 10, temperature regulator; 11, collet; 12, outer cover; 13, thermal baffle; 14, lifting eye bolt; 15, heating tube; 16, temperature sensor.
Embodiment
The specific embodiment of the present invention is further illustrated below in conjunction with accompanying drawing.
The present invention is that a kind of heat is shaken compound timeliness unrelieved stress homogenization device, and it is made up of oscillating aging system A and thermal life system B.Position annexation between them is: oscillating aging system A major part contains in it by the collet 11 of thermal life system B, outer cover 12 and thermal baffle 13, the upper surface keeping off 8 bottom collet 11 with the end of oscillating aging system A contacts, and the relative position of oscillating aging system A and thermal life system B is located by the gag lever post equidistance adjusting three 11 to the end of collet gears 8, for the space of two system in combination parts, in order to heat insulating, can stuffed heat insulated cotton or heat insulation felt.Specifically can see Fig. 1.
Described oscillating aging system A comprises: vibrator 1, compression support 2, push bolt 3, heat insulating mattress 4, shaking table 5, supporting pad 6, back up pad 7, end gear 8 and vibrating controller 9.Position annexation between them is: push bolt 3 coordinates with the threaded hole compressing support 2 and forms hold-down gear, uses two cover hold-down gears the retaining plate of vibrator 1, heat insulating mattress 4 and shaking table 5 to be compressed symmetrically; Shaking table 5 is supported in back up pad 7 by supporting pad 6; Back up pad 7 is placed on the planar section of end gear 8; Gag lever post and shaking table 5 edge of end gear 8 keep equidistance; Vibrating controller 9 is connected by data line with vibrator 1.Specifically can see Fig. 2.
The special permanent-magnet machine of oscillating aging of this vibrator 1 to be model be JZ01-01, profile is overhanging two retaining plates of cylinder bottom, and maximum profile length is respectively 320mm*280mm*230mm, and power is 1.5kW, and exciting force is 1kN.Major function is that the signal accepting vibrating controller 9 carries out exciting.
This compression support 2 is U-shaped ironcasting, cross section is the square of 50mm, and U-shaped bottom coupling end is long is 300mm, two brachium 100mm, one of them upper arm has the threaded hole that nominal diameter is 25mm, vibrator 1, heat insulating mattress 4 is compressed with shaking table 5 to coordinate with push bolt 3.
This push bolt 3 for nominal diameter be the bolt of 25mm, useful length is 200mm.Major function coordinates vibrator 1, heat insulating mattress 4 to compress with shaking table 5.
This heat insulating mattress 4 length is respectively 280mm*60mm*40mm, and material elects heat insulation felt or ceramic beaverboard as.Major function is heat insulation and transmitting vibrations energy.
This shaking table 5 is rectangular parallelepiped steel plate, and length is respectively 1000mm*700mm*20mm, platform has several through holes, for timeliness part is bolted on shaking platform.Major function ensures the vibration generation dynamic stress of workpiece along with shaking platform.
This supporting pad 6 shape is right cylinder, and diameter is 100mm, and be highly 50mm, quantity is at least three, material selection plate mica, and its Support Position is arranged on the nodel line place of the vibration shape according to vibration practical situation.Major function supports shaking table 5, to realize the vibration shape needed for oscillating aging.
This back up pad 7 shape is rectangular parallelepiped, and length is respectively 850mm*710mm*150mm, material selection ceramic beaverboard.Major function is conducted heat to bottom of device in isolated temperature field, and reduce the ground vibration that oscillating aging process causes.
It is the gag lever post of steel plate with welding that this end keeps off 8 structures, and bottom surface and earth surface, steel plate length is respectively 1020mm*1020mm*10mm, and gag lever post diameter is 15mm, is highly 230mm.Major function supports whole device, carries out spacing, and facilitate oscillating aging system A and thermal life system B to locate to shaking platform.
This vibrating controller 9 shape is rectangular parallelepiped, and length is 300mm*200mm*100mm respectively, belongs to home-built equipment, and industrial control mainboard is equipped with in inside, and model is AIMB-763G2.Major function provides instruction for vibrator 1 carries out oscillating aging.
Described thermal life system B comprises: temperature regulator 10, collet 11, outer cover 12, thermal baffle 13, lifting eye bolt 14, heating tube 15 and temperature sensor 16.Position annexation between them is: temperature regulator 10 is connected by data line with heating tube 15; Collet 11 is pulled through bolt arrangement and is connected with outer cover 12, for accepting thermal baffle 13; Lifting eye bolt 14 uses nut to be connected with outer cover 12; Heating tube 15 is connected with outer cover 12 by nut, and gos deep into internal space with temperature sensor 16 by the through hole of outer cover 12 and thermal baffle 13.Specifically can see Fig. 3.
This temperature regulator 10 shape is rectangular parallelepiped, and length is 280mm*150mm*250mm respectively, and model is XMTD-8000.Major function is the monitoring data receiving temperature sensor 16, provides instruction for control heating tube 15 carries out heating.
This collet 11 is U-shaped steel parts, and quantity is four, and length and thickness are 650mm*5mm, long sidewall and horizontal component is wide is 120mm, and short sidewall is wide is 50mm, and long sidewall is the through hole of 17mm with diameter, to use bolt arrangement to be connected with outer cover 12.Major function accepts thermal baffle 13, makes outer cover 12 and thermal baffle 13 become the main integral of thermal-insulating body.
This outer cover 12 is steel plate welding box body, and profile length is respectively 1010mm*860mm*710mm, and thickness is 5mm, and casing with the through hole of suitable quantity, and carries out loss of weight process at each side opening rectangular opening, and rectangular opening is opened in the side coordinated with shaking table 5.Major function forms thermal-insulating body outer wall, is the main body of thermal life system B, forms assembling casing for connecting each assembly.
This thermal baffle 13 is rectangular parallelepiped ceramic beaverboard, has the inwall that outer cover 12 is close in five pieces of combinations, and be divided into top and four side totally five parts, thickness is 100mm, and different piece fitting part can use high-temperature agglomerant to carry out boning and sealing.Major function forms enclosed space to carry out heat-insulation and heat-preservation, reduces the noise of oscillating aging process simultaneously.
This lifting eye bolt 14 is the standardized component of M16, and quantity elects four as.Major function is the folding coordinating wireline and derricking gear to realize thermal life system B entirety assembling casing.
This heating tube 15 is W type customization accessory, and working portion diameter is that resistance wire and magnesia powder are equipped with in 10mm inside, mounting portion diameter is M16, and length is 130mm, and quantity elects two as, and total power is 3KW.Major function is heat energy by electric energy conversion, produces institute's heat requirement of thermal life.
This temperature sensor 16 is thermocouple type high temperature sensor, and useful length is 350mm, and model coordinates with temperature regulator 10 to be selected.Major function is the temperature field in monitoring assembling casing, is converted into voltage signal and returns to temperature regulator 10.
Interface plug in this device is standard six core plug, for connect each equipment data line between interface, model is HZ-8500.
Apparatus system software program is the exploitation of C++ programming language, and major function is that the related data being respectively used to oscillating aging and thermal life carries out treatment and analysis.
It is as follows that this device is used for the shake simple workflow of compound timeliness unrelieved stress homogenizing of heat: (1) rule of thumb or simulation result choose several supporting pad 6 and be placed on suitable point of suppon for supporting shaking table 5; (2) timeliness part and shaking table 5 are fixed; (3) assembling of oscillating aging system A and thermal life system B is completed; (4) according to the technical process of formulating parameter setting carried out to vibrating controller 9 and temperature regulator 10 and realize shaking compound ageing treatment to the heat of workpiece.
Claims (3)
1. heat is shaken a compound timeliness unrelieved stress homogenization device, it is characterized in that: it is made up of oscillating aging system (A) and thermal life system (B), the collet (11) of thermal life system (B), the major part of oscillating aging system (A) contains in it by outer cover (12) and thermal baffle (13), wherein three collet (11) bottoms contact with the upper surface that the end of oscillating aging system (A) keeps off (8), and locate the relative position of oscillating aging system (A) and thermal life system (B) by adjustment three collets (11) to the gag lever post equidistance at end gear (8), for the space of two system in combination parts, in order to heat insulating, can stuffed heat insulated cotton or heat insulation felt,
Described oscillating aging system (A) comprising: vibrator (1), compression support (2), push bolt (3), heat insulating mattress (4), shaking table (5), supporting pad (6), back up pad (7), the end gear (8) and vibrating controller (9); Push bolt (3) coordinates with the threaded hole compressing support (2) and forms hold-down gear, uses two cover hold-down gears the retaining plate of vibrator (1), heat insulating mattress (4) and shaking table (5) to be compressed symmetrically; Shaking table (5) is supported in back up pad (7) by supporting pad (6); Back up pad (7) is placed on the planar section at end gear (8); Gag lever post and shaking table (5) edge at end gear (8) keep equidistance; Vibrating controller (9) is connected by data line with vibrator (1);
This vibrator (1) is that profile is overhanging two retaining plates of cylinder bottom for oscillating aging special permanent-magnet machine; Major function is that the signal accepting vibrating controller (9) carries out exciting;
This compression support (2) is U-shaped ironcasting, and one of them upper arm has threaded hole, vibrator (1), heat insulating mattress (4) is compressed with shaking table (5) to coordinate with push bolt (3);
This push bolt (3) is the larger thru-bolt of nominal diameter; Major function coordinates vibrator (1), heat insulating mattress (4) to compress with shaking table (5);
This heat insulating mattress (4) material elects heat insulation felt or ceramic beaverboard as, and size coordinates with the retaining plate of vibrator (1) to be selected; Major function is heat insulation and transmitting vibrations energy;
This shaking table (5) is rectangular parallelepiped steel plate, platform has several through holes, for timeliness part is bolted on shaking platform; Major function ensures the vibration generation dynamic stress of workpiece along with shaking platform;
This supporting pad (6) shape is right cylinder, material selection plate mica, and quantity is at least three, and its Support Position is arranged on the nodel line place of the vibration shape according to vibration practical situation; Major function supports shaking table (5), to realize the vibration shape needed for oscillating aging;
This back up pad (7) shape is rectangular parallelepiped, material selection ceramic beaverboard; Major function is conducted heat to bottom of device in isolated temperature field, and reduce the ground vibration that oscillating aging process causes;
This end gear (8) structure is the gag lever post of steel plate with welding, bottom surface and earth surface; Major function supports whole device, carries out spacing to shaking platform, and facilitate oscillating aging system (A) and thermal life system (B) location;
This vibrating controller (9) shape is rectangular parallelepiped, and belong to home-built equipment, industrial control mainboard is equipped with in inside; Major function provides instruction for vibrator (1) carries out oscillating aging;
Described thermal life system (B) comprising: temperature regulator (10), collet (11), outer cover (12), thermal baffle (13), lifting eye bolt (14), heating tube (15) and temperature sensor (16); Temperature regulator (10) is connected by data line with heating tube (15); Collet (11) is pulled through bolt arrangement and is connected with outer cover (12), for accepting thermal baffle (13); Lifting eye bolt (14) uses nut to be connected with outer cover (12); Heating tube (15) is connected with outer cover (12) by nut, and gos deep into internal space with temperature sensor (16) by the through hole of outer cover (12) and thermal baffle (13);
This temperature regulator (10) shape is rectangular parallelepiped; Major function is the monitoring data receiving temperature sensor (16), and carrying out heating for control heating tube (15) provides instruction;
This collet (11) is U-shaped steel part, and quantity is four, the long sidewall of each collet with through hole, to use bolt arrangement to be connected with outer cover (12); Major function accepts thermal baffle (13), makes outer cover (12) and thermal baffle (13) become the main integral of thermal-insulating body;
This outer cover (12) is steel plate welding box body, and with the through hole of suitable quantity, and carry out loss of weight process at each side opening rectangular opening, rectangular opening is opened in the side coordinated with shaking table (5); Major function forms thermal-insulating body outer wall, is the main body of thermal life system (B), forms assembling casing for connecting each assembly;
This thermal baffle (13) is rectangular parallelepiped ceramic beaverboard, has the inwall that outer cover (12) are close in five pieces of combinations; Major function forms enclosed space to carry out heat-insulation and heat-preservation, reduces the noise of oscillating aging process simultaneously;
This lifting eye bolt (14) is standardized component, and quantity elects four as; Major function is the folding coordinating wireline and derricking gear to realize thermal life system (B) entirety assembling casing;
This heating tube (15) is W type customization accessory, and resistance wire and magnesia powder are equipped with in inside, and quantity elects two as; Major function is heat energy by electric energy conversion, produces institute's heat requirement of thermal life;
This temperature sensor (16) is thermocouple type high temperature sensor, and model coordinates with temperature regulator (10) to be selected; Major function is the temperature field in monitoring assembling casing, is converted into voltage signal and returns to temperature regulator (10);
Interface plug in this device is standard six core plug, for connect each equipment data line between interface, model is HZ-8500; Apparatus system software program is the exploitation of C++ programming language, and major function is that the related data being respectively used to oscillating aging and thermal life carries out treatment and analysis.
2. a kind of heat according to claim 1 is shaken compound timeliness unrelieved stress homogenization device, it is characterized in that: the profile length of this shaking table (5) is respectively 1000mm*700mm*20mm.
3. a kind of heat according to claim 1 is shaken compound timeliness unrelieved stress homogenization device, and it is characterized in that: the profile length of this outer cover (12) is respectively 1010mm*860mm*710mm, thickness is 5mm.
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