CN110076639A - A kind of abrasive Flow squeezes and oscillation residual stress abatement system and method - Google Patents

Abstract

The present invention provides a kind of abrasive Flow and squeezes and oscillation residual stress abatement system and method, first in the cavity of sealing, by squeezing sticky abrasive Flow, make sticky abrasive Flow that there is rigidity under high-pressure extrusion, then sonication is used, have the sticky abrasive Flow of rigidity as working media under high pressure, the higher-order of oscillation has the abrasive Flow of rigidity, to make abrasive grain therein constantly hit bearing ring surface, sticky abrasive Flow micro flexible cutting bearing ring surface under high-pressure extrusion simultaneously, metamorphic layer is processed to guarantee that the abrasive grain of the higher-order of oscillation is more deeply hit, and then the stress for efficiently eliminating bearing ring surface is concentrated, change the stress state on surface layer, eliminate surface layer tensile stress, harden metamorphic layer, obtain the bearing ring surface with fatigue resistance.

Description

A kind of abrasive Flow squeezes and oscillation residual stress abatement system and method

Technical field

The present invention relates to the residual stress abatement system and method for a kind of bearing collar path more particularly to a kind of abatement axis The skin stress of bearing ring raceway is concentrated, and the method for the bearing skin stress regularity of distribution is improved.

Background technique

As the kernel component in equipment manufacture, tradition machinery process is mainly manufactured with " forming " to be made bearing Based on, it still " shapes " in manufacturing process, the characterization bearing ring size such as main dimensional accuracy, machining accuracy for considering bearing Etc. geometric tolerances precision index, the characterization physical property such as residual stress, Surface hardened layer that process middle (center) bearing is generated There is no considerations for index, and when actual processing bearing ring, after heat-treatment quenching, in grinding process, first, in grinding wheel rigidity Material removal power effect under ablation；Second, it is high in the part that surface to be machined generates due to rubbing in wheel grinding Temperature effect；Third rigidly removes power in grinding wheel and due to the localized hyperthermia that friction generates, in this case, and adds coolant liquid Effect；Under the influence of this triple factor, the stress distribution of bearing ring surface and sub-surface is greatly changed, is generated Great residual stress can not be eliminated, and generate stress on surface layer and concentrate, and cause the bearing collar path to press during operation According to design bearing theory, it should occur in sub-surface layer, the damage of the contact fatigue as caused by bearing pulsating stress generates micro- Crackle and the normal failure generated generate stress and concentrate, occur that crackle in bearing ring table but due to the effect of residual stress Layer, and then lead to bearing premature failure, service life reduction is the principal element for influencing long-life Bearing with high properties.And it eliminates at present Residual stress is mainly changed by modes such as natrual ageing mode, artificial aging (heat treatment), centrifugal vibration, hammerings The residual stress of part, and for the stress elimination of bearing collar path, natural aging time is long, or even needs 1 year to 2 The time in year influences enterprise and produces, and the mode complex process of artificial aging (heat treatment), needs the entire life to bearing ring Production. art is adjusted, and there is presently no the heat-treatment processing process of the artificial aging bearing ring of a set of maturation, and current Destressing mode is vibrated, mainly uses centrifugal vibration, frequency is low, 20% of residual stress or so can only be eliminated, so at present Method for removing residual stress all can not release bearing lasso skin stress, especially elimination surface layer stress concentrate, and Also there are no the residual stress of specially suitable bearing collar path to eliminate special plane, and passes through the rigid of grinding wheel during bearing grinding Property squeeze and grinding generates the influence of heat, and apply coolant liquid suddenly to generate bearing surface in grinding process huge Residual stress can not be eliminated, therefore develop a kind of dedicated bearing collar path residual stress removal equipment abatement bearing surface Residual stress, drop stress concentration and realize " become second nature control " of Anti-fatigue manufacture in the machinery of bearing to improve bearing life It is very necessary in process.

For bearing as the kernel component in equipment manufacture, machining is to continue longest technique in its manufacturing process The stress that chain, fine grinding and traditional Oilstone super-finishing can all introduce surface is concentrated, and current abrasive Flow polishing has abatement residual Residue stress improves the effect of surface integrity, but current abrasive grain flow device is served only for the polishing aspect of part, to bearing ring Residual stress abatement and removal surface stress concentrate there is no apply, especially by additional ultrasonic carry out the higher-order of oscillation Mode be a kind of feasible method.

Abrasive Flow is a kind of flexible fluid abrasive grain, and at workpieces processing surface, yielding can be automatically generated by encountering hard spot, no Lattice structure can be destroyed, using the Flexible Manufacture characteristic of abrasive Flow, while carrying out the surface polishing of bearing collar path, is led to The higher-order of oscillation for increasing additional ultrasonic is crossed, increases the intensity that abrasive grain hits bearing ring raceway face, and then in polishing bearing The residual stress on abatement processing surface layer while lasso raceway, drop stress concentration is to realize the antifatigue system of bearing collar path " becoming second nature " manufacturing technology made.

Summary of the invention

During being ground the purpose of the present invention is to solve bearing ring, since the quick rigidity of grinding wheel squeezes workpiece table Face under the influence of being ground high temperature, and is lubricated the cooling of liquid simultaneously, causes the residual stress generated in bearing surface can not It eliminates, and leads to the problem of stress on surface and concentrate this, invent a kind of residual stress method for reducing on bearing collar path surface, Change the stress distribution on bearing ring surface layer, passes through " become second nature " control that mechanical processing tools realize bearing collar path System.The present invention specifically adopts the following technical scheme that

A kind of abrasive Flow squeezes and oscillation residual stress abatement system, which includes: the two-way height of horizontal sticky abrasive flows Extrusion pressure feed unit, is used to the sticky abrasive grain of high solids continuing reciprocal multipass in a high voltage state closed Bearing inner race and outer peripheral surface；Ultrasonic wave high-frequency vibration unit, is used to provide higher-order of oscillation mechanical wave, and makes mechanical wave with vertical The viscous fluid abrasive grain that the continuous vibration-extrusion of the form of wave flows through keeps the high solids granularity in high pressure viscous fluid biggish Abrasive grain constantly taps bearing inner race and outer peripheral surface；Shaking table and Workpiece clamping unit are used for fixing clamp specifically and press from both sides Tightly processed bearing internal external lasso；Flexure spring supporting frame unit connects the ultrasonic wave high-frequency vibration unit, is used for So that the shaking table and Workpiece clamping unit under the higher-order of oscillation is followed sonic oscillation flexibility servo-actuated, and transmits vibrating machine Wave acts on closed bearing ring and sticky abrasive material.

Preferably, the horizontal sticky abrasive flows bidirectional high-pressure squeezes feed unit, including rack, left shell and right shell Body, left connection board and right connection board, left hydraulic cylinder and right hydraulic cylinder, left support floor and right support floor, left piston bar and the right side Piston rod, left pushing piston and right pushing piston, left material cylinder and right material cylinder, left pusher cylinder cap and right pushing piston cylinder cap, left carbon Fiber hose and right carbon fiber hose.

Preferably, the left connection board is fixed in the rack, the left support floor is welded on the left connection board On, left hydraulic cylinder and left material cylinder are fixed on the left support floor, left piston bar passes through screw thread and a left side in the left hydraulic cylinder Pushing piston is connected, and the flanged joint of the left material cylinder has left pusher cylinder cap, and left one end cap of carbon fiber hose is described On left pusher cylinder cap circle discharging gate, other end fixing sleeve is on the shell circle feed nozzle；It is further fixed in the rack The right connection board, the right support floor are welded in the right connection board, are fixed on the right support floor right hydraulic Cylinder and right material cylinder, right piston bar is connected by screw thread with right pushing piston in the right hydraulic cylinder, the flange of the right material cylinder It is connected with right pusher cylinder cap, for right one end cap of carbon fiber hose on the right pusher cylinder cap circle discharging gate, the other end is solid Surely it covers on the shell circle feed nozzle.

Preferably, the ultrasonic wave high-frequency vibration unit, including supersonic generator, energy converter, amplitude transformer and vibrating arm； The vibrating arm is connected as one with amplitude transformer, and the amplitude transformer is connect with energy converter, and the energy converter is connected with ultrasonic wave hair Raw device, the supersonic generator and energy converter are all connected on the rack.

Preferably, the shaking table and Workpiece clamping unit comprising left clamp body and right clamp body, left T-block With right T-block, T-type shaking table and vibrating arm, the left clamp body and right clamp body are separately positioned on left shell and right shell On body, the left clamp body is connect with the left T-block, and the right clamp body is connect with the right T-block, the left T-block It is individually fixed on the T-type shaking table with right T-block, is connected with below the T-type shaking table by ring flange The vibrating arm.

Preferably, the flexure spring supporting frame unit comprising spring support seat and setting are in the spring supporting Spring on seat.

A method of residual stress abatement system is squeezed and vibrated using abrasive Flow, and this method comprises the following steps:

(1) by bearing inner race, outer ring is clamped with left clamp body and right clamp body respectively, then passes through left fixture with bolt Body, right clamp body, bearing inner race, bearing outer ring, and fixation is tightened with nut；

(2) it uses left shell and right shell body to clamp respectively left clamp body and right clamp body, and adjusts on T-type shaking table The distance of left T-block and right T-block, by after clamping left clamp body and right clamp body be respectively used to bolt fixed to left T-block In right T-block；Left T-block, right T-block are fixed on workbench, the installation of workpiece is completed；

(3) left pusher cylinder cap is opened, will be fitted into left material cylinder containing appraisal in 95% or more sticky abrasive material, after filling, close Upper left pusher cylinder cap blending bolt is tightened, and charging is completed；

(4) start horizontal sticky abrasive flows bidirectional high-pressure and squeeze feed unit, when 3-position 4-way air operated reversing valve left position, So that left hydraulic cylinder is worked, left pusher the cylinder piston is pushed to move right, sticky abrasive material is pushed to sequentially enter carbon fiber pipe, left shell simultaneously Into in the default runner of clamp body, and flow into right shell body, carbon fiber pipe, in right pusher cylinder body, under the effect of the pressure, viscosity Abrasive material pushes right pushing piston to move right；

(5) starting horizontal sticky abrasive flows bidirectional high-pressure and squeeze feed unit, the right position of 3-position 4-way air operated reversing valve works, Make right hydraulic cylinder works, right pusher the cylinder piston is pushed to move downward, sticky abrasive material is pushed to sequentially enter carbon fiber pipe, right shell body simultaneously Into in the default runner of clamp body, and flow into left shell, carbon fiber pipe, in left pusher cylinder body, under the effect of the pressure, viscosity Abrasive material pushes right pushing piston to move downward；

(6) after one working cycles of stable operation, start the supersonic generator, make ultrasonic wave by energy converter, Amplitude transformer, vibrating arm drive T-type shaking table high frequency motion, make the intracorporal continuous high frequency of high-pressure extrusion abrasive material of seal chamber repeatedly Hit bearing inner race and bearing outer ring surface；

(7) after certain time of vibration, stop the supersonic generator higher-order of oscillation, the left and right for only retaining sticky abrasive material is squeezed Pressure movement, 1 circulation of operation to be extruded after hydraulic cylinder runs to left charging cylinder left end point, stop hydraulic system operation, processing knot Beam；

(8) after process finishing, processed bearing inner race, bearing outer ring and wiped clean are taken out.

(9) the sticky abrasive material in last cleaning equipment, and recycle, in case processing uses next time.

The present invention has following advantageous effects:

1. using ultrasonic wave as vibration power source in the present invention, and sticky abrasive grain is as vibration medium striking work table Face generates resonance by ultrasound and low-frequency vibration and makes a return journey the method for de-stress compared to relatively simple, the active force for generating vibration Workpiece to be machined surface is directly acted on, processing is more direct, keeps stress release more abundant.

2. using the sticky abrasive Flow with rigid micro powder grade under the high pressure of enclosed in preset seal cavity in the present invention It is interior to be used as vibration working media striking work surface, compared to more traditional bulky grain abrasive material as machining tool, using open type vibration Random striking work surface, the active force for generating vibration all acts on surface to be machined, processes more abundant, improves Stress release efficiency.

3. the vibration medium in the present invention acts on workpiece surface by the way of hydraulic drive abrasive Flow high-speed extrusion, make Abrasive grain itself generates the effect of micro cutting to workpiece surface, in this case, using ultrasonic vibration mode, longitudinal mechanical wave Penetrability it is strong, not only cut down surface stress and concentrate, and by micro cutting surface, can further hit by work bearing ring Sub-surface layer, strengthen metamorphic layer, improve bearing life.

Detailed description of the invention

Fig. 1 is the structure chart of enclosed sonic oscillation high pressure abrasive grain streaming system of the invention.

Fig. 2 is the process principle figure of enclosed sonic oscillation high pressure abrasive Flow of the invention.

Fig. 3 is the hydraulic system oil circuit figure of enclosed sonic oscillation high pressure abrasive Flow of the invention.

Specific embodiment

1- rack；2- connecting plate；3- left hydraulic cylinder；4- left support floor；5- left piston bar；The left pushing piston of 6-；7- is left Material cylinder；The left pusher cylinder cap of 8-；9- bolt；10- bolt；The left carbon fiber hose of 11-；12- left shell；13- right connection board；14- is right Support rib；The right hydraulic cylinder of 15-；16- right piston bar；The right pushing piston of 17-；The right material cylinder of 18-；19- bolt；20- bolt；21- Right pushing piston cylinder cap；22- spring；23- nut；24- nut；The right carbon fiber hose of 25-；25- bearing inner race；26- right shell body； 27- bearing inner race；28- bearing outer ring；The left clamp body of 29-；The right clamp body of 30-；31- bolt；32- nut；33- bolt；34- spiral shell It is female；The left T-block of 35-；The right T-block of 36-；37- bolt；38- nut；39-T type shaking table；40- supersonic generator；41- Energy converter；42- amplitude transformer；43- vibrating arm；44- welding flange；45- spring support seat；46- spring support seat；47- spring Support base；48- spring support seat；49- spring；

As shown in Figure 1, the inventive system comprises following Each part and connection types:

In 1 left end of rack, left connection board 2 is fixed in rack 1, left support floor 4 is welded on connecting plate 2, it will Left hydraulic cylinder 3 is fixed on left support floor 4, and wherein left piston bar 5 passes through screw thread and left 6 phase of pushing piston in left hydraulic cylinder 3 Connection, on the basis of guaranteeing concentricity, is inserted into left pushing piston 6 for left material cylinder 7, and be fixed on left support floor 4, will be left Flanged joint above pusher cylinder cap 8 and left material cylinder 7, and respectively by nut 9, nut 10 is tightened, by left carbon fiber hose 11 One end cap is fixed on left pusher cylinder cap circle discharging gate, and another end cap is fixed on the round feed nozzle of left shell 12.

Similarly, in 1 right end of rack, right connection board 13 is fixed in rack 1, right support floor 14 is welded on right connection On plate 13, right hydraulic cylinder 15 is fixed on right support floor 14, wherein right piston bar 16 passes through screw thread and the right side in right hydraulic cylinder Pushing piston 17 is connected, and on the basis of guaranteeing concentricity, right material cylinder 18 is inserted into right pushing piston 17, and pass through bolt 19, bolt 20 is fixed on right support floor 14, by right pushing piston cylinder cap 21 respectively with the flanged joint above right material cylinder 18, And respectively by nut 23, nut 24 is tightened.And by right 25 1 end cap of carbon fiber hose on the round discharge port of right shell body 26, And it is fixed, another end cap is fixed on right pusher cylinder cap circle discharging gate.

In addition, the present apparatus can simultaneous processing bearing inner race 27 and bearing outer ring 28, before processing, respectively with left clamp body 29, right clamp body 30 clamps bearing inner race 27 and bearing outer ring 28, and 31 one end of bolt is made to sequentially pass through left clamp body 29, right The bearing inner race 27 and bearing outer ring 28 that clamp body 30 and left clamp body 29 and right clamp body 30 are wrapped up, other end spiral shell Mother 32 tightens.When preparing processing, by left clamp body 29, right clamp body 30 and its rear bearing hood assembly is wrapped, use left housing Body 12, right shell body 26 clamp respectively, and pass through the left shell 12 after clamping with one end bolt 33, right shell body 26 and with nut 34 It tightens, the other end is respectively placed in left T-block 35, and in right T-block 36, blending bolt 37 sequentially passes through left T-block 35, left shell 12, right shell body 26 in right T-block 36, and is tightened, left T-block 35 with nut 38, and right T-block 36 is fixed on T-type vibration in advance On workbench 39.

In addition, supersonic generator 40 will be had, ultrasonic generator one end of energy converter 41 and amplitude transformer 42 is logical It crosses and is fixed in rack 1, vibrating arm 43 and amplitude transformer 42 are connected as one by the other end, and vibrating arm 43 is passed through welded flange Disk 44 is allowed to be integrally formed with ring flange 44, and ring flange 44 is fixed on T-type shaking table 39.Wherein by spring supporting Seat 45, spring support seat 47 is fixed in T-type shaking table 39 and rack 1, and by spring support seat 46, spring supporting Seat 48 is fixed in T-type shaking table 39 and rack 1, and spring 49 is then installed to spring support seat 45 and bullet respectively In spring support base 47, spring 22 is respectively installed in spring support seat 46 and spring support seat 48, thus by spring 49, bullet Shaking table is supported in rack 1 by spring 22.

Using apparatus of the present invention, when specific processing the following steps are included:

(1) by bearing inner race, outer ring is clamped with left clamp body and right clamp body respectively, then passes through left fixture with bolt Body, right clamp body, bearing inner race, bearing outer ring, and fixation is tightened with nut, make bearing inner race, left clamp body is used in outer ring respectively With right clamp body, become unified fixture body unit.

(2) it uses left shell and right shell body to clamp respectively fixture body unit, and adjusts separately on shaking table, left T-type Left shell, right shell body and fixture body unit therein one end after clamping is put into left T-type by the suitable distance of block, right T-block On block, right T-block, blending bolt is tightened, and the other end tightens fixation with bolt.

(3) all adjust spacing to left T-block, right T-block, and it is fixed complete fixture body unit after, with screw by left T Type block, right T-block are fixed on workbench, complete the installation of workpiece.

(4) left pusher cylinder cap is opened, will be fitted into left material cylinder containing appraisal in 95% or more sticky abrasive material, after filling, close Upper left pusher cylinder cap blending bolt is tightened, and charging is completed.

(5) starting hydraulic system, when 3-position 4-way air operated reversing valve left position, makes left hydraulic cylinder work, pushes away in Fig. 3 It moves left pusher the cylinder piston to move right, sticky abrasive material is pushed to sequentially enter carbon fiber pipe, left shell and enters in clamp body unit Default runner in, and flow into right shell body, carbon fiber pipe, in right pusher cylinder body, under the effect of the pressure, sticky abrasive material pushes right Pushing piston moves right, and guarantees that hydraulic system constitutes circuit.

(6) similarly, start hydraulic system, the right position work of 3-position 4-way air operated reversing valve makes right hydraulic cylinder works, pushes right Pusher the cylinder piston moves downward, and pushes sticky abrasive material to sequentially enter carbon fiber pipe, right shell body and enters pre- in clamp body unit If in runner, and flowing into left shell, carbon fiber pipe, in left pusher cylinder body, under the effect of the pressure, sticky abrasive material pushes right pusher Piston moves downward, and guarantees that hydraulic system constitutes circuit, completes a sticky abrasive material extrusion cycle.

(7) after one working cycles of stable operation, start ultrasonic generator, make ultrasonic wave by energy converter, amplitude transformer, Vibrating arm drives shaking table high frequency motion, hits the intracorporal continuous high frequency of high-pressure extrusion abrasive material of seal chamber in bearing repeatedly Circle and bearing outer ring surface.

(8) after guaranteeing certain time of vibration, stop the supersonic generator higher-order of oscillation, only retain a left side for sticky abrasive material Right compressional movement, 1 circulation of operation to be extruded, after hydraulic cylinder runs to left charging cylinder left end point, stops hydraulic system operation, adds Work terminates.

(9) after process finishing, bolt is unscrewed, left shell is opened and right shell body takes out fixture body unit.And it opens and unscrews folder The bolt of specific unit, successively takes out processed bearing inner race, bearing outer ring and wiped clean.

(10) the sticky abrasive material in last cleaning equipment, and recycle, in case processing uses next time.

The present invention is first using containing estimating 95% or more, and the viscous fluid abrasive material between fluid and powder is as work Make medium, under the action of hydraulic-driven, high-pressure extrusion viscous fluid abrasive material flows through bearing ring surface, while using ultrasound vibration Dynamic system makes to be located at the sticky abrasive material high-frequency vibration of closed bearing ring extruding being processed on shaking table, by ultrasonic wave Longitudinal mechanical wave act on sticky abrasive material, at this point, hydraulic high-pressure extruding under, sticky abrasive material of the solid content 95% or more With extremely strong rigidity, causes the continuous high-voltage high-speed of the abrasive grain in abrasive material to hit bearing ring surface, make bearing ring surface layer group The lattice structure knitted is squeezed and deformed, and then redistributes skin stress, especially for what is generated in Grinding Process The residual stress of stress raiser releases.

Secondly, the sticky abrasive grain of squeeze is again tangentially quick in the vibration processes of continuous high-frequency vibration machine wave It rolls, therefore is applied to the criss-cross mechanical wave that bearing ring surface is a kind of complexity, while normal direction squeezes, along The swiftly flowing surface that can also tangentially realize micro removal workpiece to be machined of abrasive grain, the rigidity grinding for the grinding wheel that compares, New residual stress is not generated during this flexibility removal workpiece surface, and the residual stress that roughing sand wheel is generated redistributes, And compression is converted for former surface layer tensile stress by the higher-order of oscillation, play the role of strengthening surface lattice structure, hardened layer.

Its ultrasonic higher-order of oscillation abatement residual stress principle is: when abrasive Flow is during high-pressure extrusion, predetermined particle diameter When abrasive grain flows through bearing ring surface, at this time under the action of high pressure, abrasive grain has greatly rigidity, passes through additional ultrasonic Effect, generate longitudinal higher-order of oscillation mechanical wave, 20000 hertz ultrasonic waves effect under, to the rigid abrasive grain under high pressure into The row higher-order of oscillation makes the pressure of abrasive grain longitudinally be transmitted to processed bearing ring and cuts rotten layer surface, and abrasive grain itself exists Under horizontal abrasive Flow high-pressure extrusion effect, horizontal translation, sliding, rolling occurs cutting rotten layer surface, it is larger to roughness Wave crest or trough can produce and plough plough, micro removal effect, while abrasive grain is hit repeatedly under the mechanical wave of higher-order of oscillation longitudinal direction Bearing ring is processed rotten layer surface, and ultrasonic energy constantly acts on the metamorphic layer table of part to be processed by abrasive grain Face, this energy machined material Surface absorption, when meeting or exceeding a certain threshold values of material, the power of microcosmic material occurs for workpiece surface Variation is learned, to change stress distribution, plays the role of cutting down stress concentration.

The energy that wherein ultrasonic wave is applied to bearing ring surface can be derived from by following formula:

Firstly, calculating ultrasonic wave sound intensity I, unit is watt/centimetre 2 (W/cm2),

Its calculation formula is:

Wherein, ρ is the density of propagation medium, and unit is (g/cm2), and c is the longitudinal wave velocity of ultrasonic wave, unit m/s, A For amplitude, unit m, ω are vibration frequency, unit (Hz)

Secondly, on the basis of acquiring ultrasonic intensity I, and then calculate its ultrasonic energy E are as follows: E=ISt；

Wherein, S is the area of section (mm) that ultrasonic wave passes through, and t is the ultrasonic activation time (t).

According to the oscillation of the above high frequency ultrasound and the material removal process principle of the high-pressure extrusion of sticky abrasive flows, used The system of technical solution include following unit module:

It is horizontal viscosity abrasive flows bidirectional high-pressure squeeze feed unit, including rack, left shell and right shell body, left connection board and Right connection board, left hydraulic cylinder and right hydraulic cylinder, left support floor and right support floor, left piston bar and right piston bar, left pusher Piston and right pushing piston, left material cylinder and right material cylinder, left pusher cylinder cap and right pushing piston cylinder cap, left carbon fiber hose and right carbon Fiber hose.Left connection board is fixed in rack, left support floor is welded in left connection board, is fixed with a left side on left support floor Hydraulic cylinder and left material cylinder, left piston bar is connected by screw thread with left pushing piston in left hydraulic cylinder, the flanged joint of left material cylinder There is left pusher cylinder cap, left one end cap of carbon fiber hose is on left pusher cylinder cap circle discharging gate, and other end fixing sleeve is in shell circle On shape feed nozzle；Right connection board is further fixed in rack, right support floor is welded in right connection board, fixed on right support floor There are right hydraulic cylinder and right material cylinder, right piston bar is connected by screw thread with right pushing piston in right hydraulic cylinder, the flange of right material cylinder It is connected with right pusher cylinder cap, right one end cap of carbon fiber hose is on right pusher cylinder cap circle discharging gate, and other end fixing sleeve is in shell On body circle feed nozzle.

Horizontal viscosity abrasive flows bidirectional high-pressure squeezes feed unit for providing solid content 95% or more, and grain graininess is small In 50 mesh, the working media of the two-way crushing failure at high speed for the sticky abrasive grain being relatively large in diameter keeps granularity larger, the viscosity of high solids Abrasive grain continues the closed bearing inner race of reciprocal multipass and outer peripheral surface in a high voltage state.

Ultrasonic wave high-frequency vibration unit, including supersonic generator, energy converter, amplitude transformer and vibrating arm；Vibrating arm and change Width bar is connected as one, and amplitude transformer is connect with energy converter, and energy converter is connected with supersonic generator, supersonic generator and transducing Device is all connected on the rack.

Ultrasonic wave high-frequency vibration unit makes mechanical wave constantly shake in the form of longitudinal wave for providing higher-order of oscillation mechanical wave The viscous fluid abrasive grain that dynamic high-pressure extrusion flows through guarantees that ultrasonic wave of the frequency higher than 20000 hertz mentions repeatedly in seal cavity For vibration, guarantee that the biggish abrasive grain of high solids granularity in high pressure viscous fluid constantly taps bearing inner race and outer ring table Face.

Flexure spring supporting frame unit, using spring supporting device, including spring support seat and setting are in spring supporting Spring on seat.It is used to guarantee that the shaking table under the higher-order of oscillation to follow sonic oscillation tool flexibility servo-actuated, connection ultrasound Vibration source simultaneously transmits vibrating machine wave and acts on closed bearing ring and sticky abrasive material.

Shaking table and Workpiece clamping unit comprising left clamp body and right clamp body, left T-block and right T-block, T Type shaking table and vibrating arm, left clamp body and right clamp body are separately positioned on left shell and right shell body, left clamp body with Left T-block connection, right clamp body are connect with right T-block, and left T-block and right T-block are individually fixed on T-type shaking table, T Vibrating arm is connected with by ring flange below type shaking table.

Oscillatory vibration workbench and Workpiece clamping unit for built-in oscillation clamp body and guarantee to clamp processed bearing Inner and outer ring needs to form seal cavity in clamp body, makes high-pressure fluid according to the predetermined runner in transport pipeline and fixture Pass through bearing collar path surface.

Claims (7)

1. a kind of abrasive Flow squeezes and oscillation residual stress abatement system, which is characterized in that the system includes:

Horizontal viscosity abrasive flows bidirectional high-pressure squeezes feed unit, is used for the sticky abrasive grain of high solids in a high voltage state Continue the closed bearing inner race of reciprocal multipass and outer peripheral surface；

Ultrasonic wave high-frequency vibration unit, is used to provide higher-order of oscillation mechanical wave, and mechanical wave is made constantly to shake in the form of longitudinal wave It is dynamic to squeeze the viscous fluid abrasive grain flowed through, so that the biggish abrasive grain of high solids granularity in high pressure viscous fluid is constantly tapped axis Hold inner ring and outer ring surface；

Shaking table and Workpiece clamping unit, for the bearing internal external lasso that fixing clamp is specific and clamping is processed；

Flexure spring supporting frame unit connects the ultrasonic wave high-frequency vibration unit, described in making under the higher-order of oscillation It is servo-actuated that shaking table and Workpiece clamping unit follow sonic oscillation flexibility, and transmits vibrating machine wave and act on closed bearing Lasso and sticky abrasive material.

2. a kind of abrasive Flow as described in claim 1 squeezes and oscillation residual stress abatement system, which is characterized in that

The horizontal sticky abrasive flows bidirectional high-pressure squeezes feed unit, including rack, left shell and right shell body, left connection board and Right connection board, left hydraulic cylinder and right hydraulic cylinder, left support floor and right support floor, left piston bar and right piston bar, left pusher Piston and right pushing piston, left material cylinder and right material cylinder, left pusher cylinder cap and right pushing piston cylinder cap, left carbon fiber hose and right carbon Fiber hose.

3. a kind of abrasive Flow as claimed in claim 2 squeezes and oscillation residual stress abatement system, which is characterized in that

The left connection board is fixed in the rack, the left support floor is welded in the left connection board, the left branch Left hydraulic cylinder and left material cylinder are fixed on stake rib plate, left piston bar is connected by screw thread with left pushing piston in the left hydraulic cylinder It connects, the flanged joint of the left material cylinder has left pusher cylinder cap, and left one end cap of carbon fiber hose is in the left pusher cylinder cap circle On shape discharging gate, other end fixing sleeve is on the shell circle feed nozzle；

The right connection board is further fixed in the rack, the right support floor is welded in the right connection board, the right side Right hydraulic cylinder and right material cylinder are fixed in support rib, right piston bar passes through screw thread and right pushing piston phase in the right hydraulic cylinder Connection, the flanged joint of the right material cylinder have right pusher cylinder cap, and right one end cap of carbon fiber hose is in the right pusher cylinder cap On round discharging gate, other end fixing sleeve is on the shell circle feed nozzle.

4. a kind of abrasive Flow as described in claim 1 squeezes and oscillation residual stress abatement system, which is characterized in that

The ultrasonic wave high-frequency vibration unit, including supersonic generator, energy converter, amplitude transformer and vibrating arm；The vibrating arm It is connected as one with amplitude transformer, the amplitude transformer is connect with energy converter, and the energy converter is connected with supersonic generator, described super Sonic generator and energy converter are all connected on the rack.

5. a kind of abrasive Flow as described in claim 1 squeezes and oscillation residual stress abatement system, which is characterized in that

The shaking table and Workpiece clamping unit comprising left clamp body and right clamp body, left T-block and right T-block, T Type shaking table and vibrating arm, the left clamp body and right clamp body are separately positioned on left shell and right shell body, the left side Clamp body is connect with the left T-block, and the right clamp body is connect with the right T-block, the left T-block and right T-block point It is not fixed on the T-type shaking table, the vibrating arm is connected with by ring flange below the T-type shaking table.

6. a kind of abrasive Flow as described in claim 1 squeezes and oscillation residual stress abatement system, which is characterized in that

The flexure spring supporting frame unit comprising spring support seat and the spring being arranged in the spring support seat.

7. a kind of method of application system as described in claim 1-6, which is characterized in that this method comprises the following steps:

(1) by bearing inner race, outer ring is clamped with left clamp body and right clamp body respectively, then passes through left clamp body, the right side with bolt Clamp body, bearing inner race, bearing outer ring, and fixation is tightened with nut；

(2) it uses left shell and right shell body to clamp respectively left clamp body and right clamp body, and adjusts left T on T-type shaking table The distance of type block and right T-block, by after clamping left clamp body and right clamp body be respectively used to bolt fixed to left T-block and the right side In T-block；Left T-block, right T-block are fixed on workbench, the installation of workpiece is completed；

(3) left pusher cylinder cap is opened, will be fitted into left material cylinder containing appraisal in 95% or more sticky abrasive material, after filling, closed a left side and push away Material cylinder lid blending bolt is tightened, and charging is completed；

(4) starting horizontal sticky abrasive flows bidirectional high-pressure extruding feed unit makes a left side when 3-position 4-way air operated reversing valve left position Hydraulic cylinder works push left pusher the cylinder piston to move right, and sticky abrasive material is pushed to sequentially enter carbon fiber pipe, left shell and enter In the default runner of clamp body, and flow into right shell body, carbon fiber pipe, in right pusher cylinder body, under the effect of the pressure, sticky abrasive material Right pushing piston is pushed to move right；

(5) start horizontal sticky abrasive flows bidirectional high-pressure and squeeze feed unit, the right position work of 3-position 4-way air operated reversing valve makes the right side Hydraulic cylinder works push right pusher the cylinder piston to move downward, and sticky abrasive material is pushed to sequentially enter carbon fiber pipe, right shell body and enter In the default runner of clamp body, and flow into left shell, carbon fiber pipe, in left pusher cylinder body, under the effect of the pressure, sticky abrasive material Right pushing piston is pushed to move downward；

(6) after one working cycles of stable operation, start the supersonic generator, ultrasonic wave is made to pass through energy converter, luffing Bar, vibrating arm drive T-type shaking table high frequency motion, hit the intracorporal continuous high frequency of high-pressure extrusion abrasive material of seal chamber repeatedly Bearing inner race and bearing outer ring surface；

(7) after certain time of vibration, stop the supersonic generator higher-order of oscillation, the left and right for only retaining sticky abrasive material squeezes fortune Dynamic, 1 circulation of operation to be extruded after hydraulic cylinder runs to left charging cylinder left end point, stops hydraulic system operation, process finishing；

(8) after process finishing, processed bearing inner race, bearing outer ring and wiped clean are taken out.

(9) the sticky abrasive material in last cleaning equipment, and recycle, in case processing uses next time.