CN107523672B - A kind of controllable ultrasonic striker set composite and method for Machining of Curved Surface - Google Patents
A kind of controllable ultrasonic striker set composite and method for Machining of Curved Surface Download PDFInfo
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- CN107523672B CN107523672B CN201710707286.0A CN201710707286A CN107523672B CN 107523672 B CN107523672 B CN 107523672B CN 201710707286 A CN201710707286 A CN 201710707286A CN 107523672 B CN107523672 B CN 107523672B
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- striker
- shell
- machining
- curved surface
- power source
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D7/00—Modifying the physical properties of iron or steel by deformation
- C21D7/02—Modifying the physical properties of iron or steel by deformation by cold working
- C21D7/04—Modifying the physical properties of iron or steel by deformation by cold working of the surface
- C21D7/06—Modifying the physical properties of iron or steel by deformation by cold working of the surface by shot-peening or the like
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D11/00—Process control or regulation for heat treatments
Abstract
The invention discloses a kind of controllable ultrasonic striker set composites and method for Machining of Curved Surface, it is poor that it solves the shot-peening uniformity in the prior art, the uncontrollable problem of pressure, with effectively reducing workpiece surface roughness, improve the beneficial effect of surface quality, its scheme is as follows: set composite, including at least one striker telescoping drive mechanism, striker telescoping drive mechanism includes shell, groove is arranged in shell, setting driving power source in groove, the striker being arranged across shell is equipped in shell, striker is connect by helical gear with driving power source in shell, pressure sensor connected to the controller is arranged in housing bottom, controller is connect with driving power source.
Description
Technical field
The present invention relates to a kind of reinforcement techniques of piece surface, more particularly to a kind of for the controllable super of Machining of Curved Surface
Sound striker set composite and method.
Background technique
Surface strengthening technology is a kind of process for modifying surface for being mainly used to improve metalwork fatigue behaviour, is led in industry
Domain obtains wide application.It generates metal material near-surface region using the mechanism of the forms such as impact force or extruding force
The elastic-plastic deformation of part, causes to produce residual compressive stress on the surface of the material, and material microstructure is made to change, and enhances
The ability of its resisting fatigue crack initiation and propagation.
Ultrasonic wave Shot Peening Technology (Ultrasonic Shot Peening, USP) is current most promising metal
One of surface Hardening Treatment technique is cold worked in material, it not only overcomes the deficiency of traditional shot-peening, and strengthening effect is better than tradition
Shot-peening has better process controllability.This technology is commonly used in many industrial circles at present, for example, aerospace, automobile,
Railway and bridge structure, material needed for these fields need very high intensity, fatigue life, abrasion and corrosion resistance.?
In this technique, ultrasonic energy is converted into striker or bullet to the high speed impact of metal material surface, produces metal surface
Raw biggish plastic deformation, harmful residual tensile stress are effectively eliminated, and form residual compressive stress layer in metal surface；Occur
Surface deformation strengthening, and lead to the refinement of surface microstructure and the improvement of microstructure；And the presence of shot-peening residual stress makes to split
The enhancing of line closed effect, effectively inhibits the extension of fatigue crack.Therefore, ultrasonic wave Shot Peening Technology can increase metal watch
Face microhardness and intensity improve corrosion resistance and fatigue behaviour.
When due to using bullet, the power of shot-peening is entirely to be provided by the amplitude transformer of ultrasonic vibration, cannot play ultrasonic spray
Whole advantages of ball, and have number of shocks during shot-peening, the apparent uncontrollable factor such as uniformity, particularly with
Curved surface intensified, the prior art can only realize that single-point impacts, and pressure can not achieve fully controllable.Therefore, it is badly in need of a kind of rationally effective
Set composite realize the controllable reinforcing of curved surface.
Summary of the invention
For overcome the deficiencies in the prior art, the present invention provides a kind of controllable ultrasonic striker for Machining of Curved Surface is multiple
It attaches together and sets, which carries out real-time control to driving motor, can effectively reduce workpiece by the setting of pressure sensor, controller
Surface roughness improves surface quality.
A kind of concrete scheme of the controllable ultrasonic striker set composite for Machining of Curved Surface is as follows:
A kind of controllable ultrasonic striker set composite for Machining of Curved Surface, comprising:
At least one striker telescoping drive mechanism, striker telescoping drive mechanism include shell, and shell is arranged groove, in groove
Setting driving power source, shell is interior to be equipped with the striker being arranged across shell, and striker passes through helical gear and driving power in shell
Pressure sensor connected to the controller is arranged in source connection, housing bottom, and controller is connect with driving power source.
The set composite contacts at the top of striker with workpiece in workpiece surface forced working, and pressure sensor is film pressure
Force snesor changes for measuring mechanism pressure in work, pressure signal can be converted to electric signal, be transmitted to controller
(PLC controller), driving power source can positive and negative rotation rotation, by programming, utilize controller control striker it is flexible by workpiece
Suffered maximum pressure is controlled in setting value, to meet the processing of curved surface.
Wherein, in order to realize that the stretching motion of striker, the helical gear are set to the end of driving power source axis, power is driven
Source axis and helical gear are interference fitted, and striker is arranged close to an angle of shell.
The striker is vertically arranged, and the blind hole that setting is passed through for striker in the housing, striker is inserted into blind hole and carries out
It installs and moves up and down along blind hole, striker successively includes three sections from top to bottom, and the diameter of first segment is less than the diameter of second segment,
The screw thread of the setting of second segment outer surface and blind hole cooperation, third section setting helical teeth are engaged with helical gear, are at the top of first segment
Spherical surface, the processing for curved surface.
The pressure sensor is fixed on the bottom of shell by binder, which can be glue.
The driving power source is fixed by fastener and the shell, and driving power source is driving motor, in shell
It is equipped with the threaded hole communicated with groove, fastener such as screw is fixed by the threaded hole with driving motor.
The axis of the driving power source is vertically arranged with striker axis, to guarantee that striker stretches limit not by motor position
It is limited, extendable room is maximum.
The housing bottom is equipped with location hole, and shell is arranged in hull outside, and striker may pass through shell setting, and interior of shell is set
The positioning protrusion with location hole cooperation is set, shell is realized by location hole and shell and connected, if the number of striker telescoping drive mechanism
Amount is 4, then location hole has 12, and it is real to pass through location hole with pin for corresponding three location holes of each striker telescoping drive mechanism
The connection of existing shell and shell.
Multiple apertures are provided in the two sides of shell, the power supply line of driving motor and the transmission line of pressure sensor pass through aperture
Setting, is connected to controller, and controller is set to shell side.
The striker material be steel alloy, shell blind hole be tapped blind hole, such striker can by rotation reach stretching and
Retraction movement, tapped blind hole internal screw thread make striker have bigger extendable room by the one third at top to hole depth.
The striker telescoping drive mechanism is equipped at least four, and all striker telescoping drive mechanisms are all set in shell,
Such four striker concentrated settings in the center of cover top portion, workbench drive curve surface work pieces constantly move operation when
It waits, the uniform force of different location can be realized by the device.
In processing curve workpiece, by the flexible of control striker, maximum pressure suffered by workpiece is controlled in setting value.
Therefore, when workbench drives curve surface work pieces constantly to move operation, it can realize that the stress of different location is equal by the device
It is even, while surface roughness can be reduced, improve surface quality.Also, mountable four strikers can effectively improve work effect
Rate.
For overcome the deficiencies in the prior art, the present invention also provides one kind for pressure constant control side in Machining of Curved Surface
Method, steps are as follows:
1) pressure sensor is placed on to the bottom of striker telescoping drive mechanism, it is flexible to measure striker in process
Maximum pressure suffered by driving mechanism；
2) when unprocessed workpiece, maximum pressure value is write down, as self gravity；
3) setup pressure value is started into workpieces processing plus in gravity value input controller, is arrived in pressure sensor test
Maximum pressure value be greater than input value when, controller issue instruction, driving power source rotate forward, drive striker rotation, striker
Retract striker telescoping drive mechanism；When the maximum pressure value that pressure sensor is tested is less than input value, controller sending refers to
It enables, driving power source rotates backward, and drives striker rotation, and striker stretches out striker telescoping drive mechanism.
Compared with prior art, the beneficial effects of the present invention are:
1) striker is designed as middle part screw thread, and lower end and helical gear cooperate, and the rotation for being conducive to striker drives it flexible up and down
Movement.
2) striker telescoping drive mechanism is rotated using motor, controls striker axial feed, achievees the effect that flexible, structure letter
Single, operability is high.
3) pressure sensor is located at striker telescoping drive mechanism bottom, tests process striker telescoping drive mechanism bottom
Pressure.
4) controller keeps maximum pressure value constant by setting maximum pressure value, control driving motor rotation.
5) mountable four identical telescoping drive mechanisms in shell improve processing efficiency.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide further understanding of the present application, and the application's shows
Meaning property embodiment and its explanation are not constituted an undue limitation on the present application for explaining the application.
Fig. 1 is striker telescoping drive mechanism three-dimensional figure of the present invention；
Fig. 2 is schematic diagram of internal structure in the present invention；
Fig. 3 is striker telescoping drive mechanism cross-sectional view；
Fig. 4 is ultrasonic striker set composite overall schematic；
In figure, 1, striker；2, shell；3,45 degree of helical gears；4, driving motor；5, threaded hole；6, location hole；7, motor drives
Dynamic device；8, controller；9, diaphragm pressure sensor；10, striker telescoping drive mechanism；11, shell.
Specific embodiment
It is noted that following detailed description is all illustrative, it is intended to provide further instruction to the application.Unless another
It indicates, all technical and scientific terms used herein has usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.
As background technique is introduced, the deficiencies in the prior art, in order to solve technical problem as above, this Shen
It please propose a kind of controllable ultrasonic striker set composite and method for Machining of Curved Surface.
In a kind of typical embodiment of the application, as shown in Figure 1, a kind of controllable ultrasound for Machining of Curved Surface is hit
Needle set composite, including at least one striker telescoping drive mechanism are hit as shown in Figure 1, striker telescoping drive mechanism includes shell
Needle 1 is mounted in the blind hole on 2 top of shell, and driving motor 4 is mounted in the groove of 2 side of shell, using threaded hole 5, uses spiral shell
Bolt is fixed by driving motor 4, and 4 shaft end portion of driving motor is interference fitted with 45 degree of helical gears 3,45 degree of helical gears and 1 lower end of striker
Helical teeth engagement, striker 1 realize the stretching and retraction of striker 1 with 4 positive and negative rotation of driving motor, and location hole 6 is arranged in 2 bottom of shell,
By location hole 6, striker telescoping drive mechanism 10 is connected with shell 11 with pin, striker 1 uses superior alloy steel
30CrMnMoTiA, controller can be computer or the PLC controller with display screen.
As shown in Fig. 2, striker telescoping drive mechanism cross-sectional view, the threaded hole internal screw thread of the installation striker is extended by top
To at the one third of the depth in hole, striker is made to have bigger extendable room, 4 axis of driving motor and 1 axis of striker are vertical, with
Guarantee that the limit of stretching of striker 1 is not limited by 4 position of driving motor, extendable room is maximum.
As shown in figure 3, ultrasonic striker set composite includes ultrasonic striker 1, diaphragm pressure sensor 9, the flexible driving of striker
Diaphragm pressure sensor 9 is fixed on 10 bottom of striker telescoping drive mechanism with glue by mechanism 10, controller 8 and shell 11
Portion changes for measuring device pressure in work, and diaphragm pressure sensor 9 is connected with controller 8, to observe control in real time
10 bottom pressure of striker telescoping drive mechanism processed, controller 8 are connected with motor driver 7, when diaphragm pressure sensor 9 is surveyed
When the maximum pressure value of examination is not equal to the pressure value set, signal is transmitted motor driver 7 by controller 8, and then controls driving
Motor 4 is forward or reverse.
When carrying out process operation, striker 1 is installed first, diaphragm pressure sensor 9 is fixed on striker with glue and is stretched
Then striker telescoping drive mechanism 10 is mounted in shell 11 by housing bottom in driving mechanism 10.Controller 8 is successively opened again
With motor driver 7, before setup pressure value, the gravity of striker telescoping drive mechanism 10 itself is first tested, in unprocessed workpiece
When, maximum pressure value is write down, as self gravity, maximum pressure value is then set in controller 8, setup pressure value adds
In gravity value input controller, start workpieces processing, is greater than input value in the maximum pressure value that diaphragm pressure sensor is tested
When, controller 8 issues instruction, and motor driver 7 controls driving motor 4 and rotates forward, and striker 1 is driven to rotate, and the retraction of striker 1 is hit
Needle telescoping drive mechanism 10；When the maximum pressure value that diaphragm pressure sensor 9 is tested is less than input value, controller 8 is issued
Instruction, motor driver 7 control driving motor 4 and rotate backward, and striker 1 is driven to rotate, and striker 1 stretches out striker telescoping drive mechanism
10。
The foregoing is merely preferred embodiment of the present application, are not intended to limit this application, for the skill of this field
For art personnel, various changes and changes are possible in this application.Within the spirit and principles of this application, made any to repair
Change, equivalent replacement, improvement etc., should be included within the scope of protection of this application.
Claims (9)
1. a kind of controllable ultrasonic striker set composite for Machining of Curved Surface characterized by comprising
At least one striker telescoping drive mechanism, striker telescoping drive mechanism include shell, and groove, setting in groove is arranged in shell
Power source is driven, the striker being arranged across shell is equipped in shell, striker is connected in shell by helical gear and driving power source
It connects, pressure sensor connected to the controller is arranged in housing bottom, and controller is connect with driving power source；
The striker is vertically arranged, the blind hole that setting is passed through for striker in the housing；
Striker successively includes three sections from top to bottom, and the diameter of first segment is less than the diameter of second segment, the setting of second segment outer surface with
The screw thread of blind hole cooperation, third section are engaged with helical gear, are spherical surface at the top of first segment.
2. a kind of controllable ultrasonic striker set composite for Machining of Curved Surface according to claim 1, which is characterized in that
The helical gear is set to the end of driving power source axis.
3. a kind of controllable ultrasonic striker set composite for Machining of Curved Surface according to claim 1, which is characterized in that
The pressure sensor is fixed on the bottom of shell by binder.
4. a kind of controllable ultrasonic striker set composite for Machining of Curved Surface according to claim 1, which is characterized in that
The driving power source is fixed by fastener and the shell.
5. a kind of controllable ultrasonic striker set composite for Machining of Curved Surface according to claim 1, which is characterized in that
The axis of the driving power source is vertically arranged with striker axis.
6. a kind of controllable ultrasonic striker set composite for Machining of Curved Surface according to claim 1, which is characterized in that
For the housing bottom equipped with location hole, shell is arranged in hull outside, and striker may pass through shell setting, and shell is by location hole and outside
Shell realizes connection.
7. a kind of controllable ultrasonic striker set composite for Machining of Curved Surface according to claim 1, which is characterized in that
The striker material is steel alloy.
8. a kind of controllable ultrasonic striker set composite for Machining of Curved Surface according to claim 7, which is characterized in that
The striker telescoping drive mechanism is equipped at least four, and all striker telescoping drive mechanisms are all set in shell.
9. a kind of using such as the described in any item controllable ultrasonic striker set composites for Machining of Curved Surface of claim 1-8
Application method, which is characterized in that steps are as follows:
1) pressure sensor is placed on to the bottom of striker telescoping drive mechanism, to measure the flexible driving of striker in process
Maximum pressure suffered by mechanism；
2) when unprocessed workpiece, maximum pressure value is write down, as self gravity；
3) setup pressure value is started workpieces processing, tested most in pressure sensor plus in gravity value input controller
When big pressure value is greater than input value, controller issues instruction, and driving power source rotates forward, and drives striker rotation, and striker retracts
Striker telescoping drive mechanism；When the maximum pressure value that pressure sensor is tested is less than input value, controller issues instruction, drives
Dynamic power source rotates backward, and drives striker rotation, and striker stretches out striker telescoping drive mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710707286.0A CN107523672B (en) | 2017-08-17 | 2017-08-17 | A kind of controllable ultrasonic striker set composite and method for Machining of Curved Surface |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710707286.0A CN107523672B (en) | 2017-08-17 | 2017-08-17 | A kind of controllable ultrasonic striker set composite and method for Machining of Curved Surface |
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| CN107523672A CN107523672A (en) | 2017-12-29 |
| CN107523672B true CN107523672B (en) | 2019-02-22 |
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| CN114875344A (en) * | 2022-05-27 | 2022-08-09 | 南京航空航天大学 | Vacuum shot blasting device and method |
| CN116770036A (en) * | 2023-06-21 | 2023-09-19 | 安徽理工大学 | Progressive firing pin type ultrasonic shot blasting surface strengthening equipment |
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|---|---|---|---|---|
| CN101722228A (en) * | 2010-01-12 | 2010-06-09 | 北京航空航天大学 | Device for processing surface of metal workpiece and method thereof |
| CN105689959A (en) * | 2016-04-26 | 2016-06-22 | 吉林大学 | Ultrasonic surface rolling finishing feedback system capable of automatically regulating and controlling static pressure |
| CN105969961A (en) * | 2016-05-27 | 2016-09-28 | 南京工程学院 | Device and method for strengthening large stress deformation of metal surface |
-
2017
- 2017-08-17 CN CN201710707286.0A patent/CN107523672B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101722228A (en) * | 2010-01-12 | 2010-06-09 | 北京航空航天大学 | Device for processing surface of metal workpiece and method thereof |
| CN105689959A (en) * | 2016-04-26 | 2016-06-22 | 吉林大学 | Ultrasonic surface rolling finishing feedback system capable of automatically regulating and controlling static pressure |
| CN105969961A (en) * | 2016-05-27 | 2016-09-28 | 南京工程学院 | Device and method for strengthening large stress deformation of metal surface |
Non-Patent Citations (1)
| Title |
|---|
| 高能超声波喷丸板料成形技术研究;高琳;《南京航空航天大学硕士学位论文》;20131231;3,8,27 |
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