CN218452810U - Ultrasonic impact processing device for quantitative surface strengthening - Google Patents
Ultrasonic impact processing device for quantitative surface strengthening Download PDFInfo
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- CN218452810U CN218452810U CN202222820084.6U CN202222820084U CN218452810U CN 218452810 U CN218452810 U CN 218452810U CN 202222820084 U CN202222820084 U CN 202222820084U CN 218452810 U CN218452810 U CN 218452810U
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Abstract
The invention discloses an ultrasonic impact processing device for quantitative surface strengthening and a processing method thereof, wherein the ultrasonic impact processing device comprises a rack, a three-axis motion system and ultrasonic impact equipment; the three-axis motion system comprises an X-direction motion mechanism, a Y-direction motion mechanism and a Z-direction motion mechanism; the Z-direction movement mechanism comprises a Z-direction guide rail fixedly connected to the X-direction sliding table, and a pressure loading system and a timing impact control system which are coaxially arranged on the X-direction sliding table, and the ultrasonic impact equipment is connected to the Z-direction guide rail in a sliding manner; the pressure loading system is connected with the ultrasonic impact equipment and is used for applying static load to the ultrasonic impact equipment; the timing impact control system is connected with the ultrasonic impact equipment and used for rapidly lifting or descending the ultrasonic impact equipment to control the ultrasonic impact time. The invention can ensure that the pressure in the ultrasonic impact process is constant all the time, the impact track is convenient to control, the impact position is changed in a short time, the ultrasonic impact parameterization is realized, and the surface strengthening effect is greatly improved.
Description
Technical Field
The utility model belongs to the technical field of metal material surface machining equipment and technique and specifically relates to a but accurate control deflection, can realize the ultrasonic impact processingequipment that is used for quantitative surface strengthening of quantitative surface strengthening.
Background
The ultrasonic impact utilizes high-power energy to push an impact head to impact the surface of a metal sample at a frequency of about 2 ten thousand times per second, and the large energy generated by ultrasonic impact equipment enables the surface of the metal to generate larger compression plastic deformation, changes the original stress field, generates beneficial compressive stress, strengthens the impact part, and is widely applied to eliminating residual stress of various components and welding parts in the fields of aerospace, petrochemical engineering and the like at present.
The nano process is related to the intensity of ultrasonic impact, and the current ultrasonic impact device adopts a continuous feeding processing mode, so that the impact time per unit area is insufficient, and the sufficient impact intensity cannot be provided. And the mechanical arm is adopted for ultrasonic impact processing, so that the mechanical arm is hard impact and often has vibration problem, and the mechanical arm is fatigue-damaged due to long-time work.
Disclosure of Invention
An object of the utility model is to provide an ultrasonic impact processingequipment for ration surface strengthening, with the problem of solving above-mentioned prior art existence, the device simple structure, high operation convenience, therefore, the clothes hanger is strong in practicability, through having increased the function that static load control and impact the rifle and lift up, but exert the pressure of controlling size to the ultrasonic wave impact rifle, and can reach the controllable requirement of regulation impact force and unit area impact number of times, reunion ultrasonic impact processing, make ultrasonic impact device have regularly concurrently, the ability of constant load ultrasonic impact, make the surface strengthening effect show.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an ultrasonic impact processing device for quantitative surface strengthening comprises a frame, a three-axis motion system and ultrasonic impact equipment;
the three-axis motion system comprises an X-direction motion mechanism, a Y-direction motion mechanism and a Z-direction motion mechanism;
the X-direction movement mechanism comprises an X-direction sliding table, an X-direction lead screw and an X-direction motor, the X-direction sliding table is connected to a cross beam at the top of the rack in a sliding manner along the X direction, the X-direction lead screw is connected to the cross beam at the top of the rack in a rotating manner along the X direction, the X-direction lead screw is in transmission connection with a nut seat on the X-direction sliding table, and the X-direction motor is in transmission connection with one end of the X-direction lead screw (through a coupler);
the Y-direction movement mechanism comprises a Y-direction sliding table, a Y-direction lead screw and a Y-direction motor, the Y-direction sliding table is connected to the table top at the bottom of the rack in a sliding manner along the Y direction, the Y-direction lead screw is connected to the table top at the bottom of the rack in a rotating manner along the Y direction, the Y-direction lead screw is in transmission connection with a nut seat on the Y-direction sliding table, and the Y-direction motor is in transmission connection with one end of the Y-direction lead screw (through a coupler); the top of the Y-direction sliding table is a clamping surface, a workpiece to be machined is fixed on the clamping surface through a clamping mechanism, and the clamping mechanism is fixed on the clamping surface through a bolt;
the Z-direction movement mechanism comprises a Z-direction guide rail fixedly connected to the X-direction sliding table, and a pressure loading system and a timing impact control system which are coaxially arranged on the X-direction sliding table, and the ultrasonic impact equipment is connected to the Z-direction guide rail in a sliding manner; the pressure loading system is connected with the ultrasonic impact equipment and is used for applying static load to the ultrasonic impact equipment; the timing impact control system is connected with the ultrasonic impact equipment and used for rapidly lifting or descending the ultrasonic impact equipment to control the ultrasonic impact time.
Furthermore, the ultrasonic impact device comprises an ultrasonic impact gun, a clamping fixing plate and a power supply, wherein an upper sliding block and a lower sliding block are fixed on the back of the clamping fixing plate and are respectively connected to the Z-direction guide rail in a sliding manner; the ultrasonic impact gun is fixedly connected to the clamping fixing plate through a bolt and is connected with a power supply to work.
Furthermore, the pressure loading system is positioned above the ultrasonic impact equipment, the pressure loading system comprises a pressure loading screw rod, a pressure loading motor, a pressure loading sliding table, a pressure loading sliding block, a spring and a pressure sensor, the pressure loading sliding table and the pressure loading sliding block are sequentially connected onto the Z-direction guide rail in a sliding mode from top to bottom, the pressure loading screw rod is connected onto the X-direction sliding table in a rotating mode along the Z direction, the pressure loading screw rod is in transmission connection with a nut seat on the pressure loading sliding table, and the pressure loading motor is in transmission connection with one end of the pressure loading screw rod (through a coupler); the pressure loading sliding table applies pressure to the pressure loading sliding block, the pressure sensor is fixed on the top surface of the upper sliding block positioned on the back of the ultrasonic impact equipment, one end of the spring is fixedly connected with the bottom of the pressure loading sliding block, and the other end of the spring is connected to the detection end of the pressure sensor; the pressure loading motor is controlled by the pressure instruction controller to drive the pressure loading screw rod and the pressure loading sliding table to feed, pressure is applied to the pressure loading sliding block and the spring, the pressure is fed back to the pressure instruction controller by the pressure sensor, and constant pressure output is achieved.
Furthermore, the timing impact control system is positioned below the ultrasonic impact equipment and consists of a high-speed precise lifting mechanism, and the high-speed precise lifting mechanism comprises a hydraulic cylinder, a hydraulic pump and an electromagnetic reversing valve; the hydraulic cylinder is fixedly connected to the lower end of the X-direction sliding table through a bolt, the tail end of a piston rod of the hydraulic cylinder is in locking connection with the bottom surface of a lower sliding block positioned on the back of the ultrasonic impact equipment through a nut, and the hydraulic cylinder, the electromagnetic directional valve and the hydraulic pump are sequentially connected; the direction of feeding of a piston rod of the hydraulic cylinder is changed by controlling the reversing valve through the timing impact instruction controller, so that the ultrasonic impact processing system is quickly lifted or descended.
The processing method adopting the ultrasonic impact processing device comprises the following steps:
step 1: the workpiece is fixed on the clamping surface through the clamping mechanism, and the surface to be processed of the workpiece is parallel to the horizontal plane;
step 2: the setting (track, speed, step length and the like) of processing parameters required by the three-axis motion system is completed through the motion instruction controller, meanwhile, the motion instruction controller controls the three-axis motion system to feed to a preset position, and controls the ultrasonic impact equipment to feed through the pressure loading system, so that the impact head of the ultrasonic impact gun is in contact with a workpiece to carry out pre-impact;
and step 3: after the pre-impact is finished, the pressure instruction controller controls the pressure loading system to start to apply given pressure;
and 4, step 4: after the pressure application is finished, the ultrasonic impact gun starts to impact;
and 5: after the current position is impacted, the timing impact instruction controller controls the timing impact control system, the ultrasonic impact gun is lifted up and lowered down in a short time through the high-speed precise lifting mechanism, and meanwhile, the three-axis motion system quickly feeds to the next position through preset machining parameters.
Further, the setting of the processing parameters comprises:
(1) The feeding amount of one stroke of the three-axis motion system is 10 mu m, and the micro-feeding is carried out at the speed of 10-15 mm/min;
(2) The loading pressure value of the pressure loading system is 1-500N; the precision is 1N; wherein:
ΔF＝ΔL×K
in the above formula,. DELTA.F-pressure; Δ L-Z feed; the K-coefficient can be set as K =1,1.5,2 \ 8230 \8230, 8230, 4,4.5,5;
(3) The feeding amount of the timing impact control system is 1-2mm; the precision is 0.1mm; wherein:
ΔS 2 ＝Δt×v 2
namely:
the above formula: delta S 1 -a Z-feed; v. of 1 -a Z-direction feed speed; delta S 2 -X, Y feed; v. of 2 -X, Y feed speed; Δ t-time;
(4) Output power of ultrasonic impact equipment: 500-2000W; output frequency: 20-40kHz; output amplitude: 0-100um.
The utility model adopts the above technical scheme, following beneficial technological effect has:
1. compared with other ultrasonic impact processing devices, the ultrasonic impact processing device has the advantages that the functions of load control and quick lifting of the impact gun are added, the repeated disassembly and assembly of the test sample and the weight are omitted, the requirements of intelligently adjusting static load and finishing timing impact can be finished in one processing process, so that a large amount of working time is saved, and the surface strengthening effect is improved;
2. according to the pressure required by the machined workpiece, constant pressure output is realized through the pressure instruction controller, the stable consistency of the pressure in the machining process is ensured, and the requirements of the dimension and form and position tolerance of the machined workpiece can be better ensured;
3. the utility model can set different parameters aiming at different materials, so as to obtain the surface layer tissue with more obvious experimental effect;
4. the utility model discloses a regularly, the processing mode is strikeed to the ultrasonic impact of fixed load carries out the surface shock and reinforces the processing to the work piece, can obtain the great plastic deformation in top layer, and the spring that sets up in the pressure loading system simultaneously plays the cushioning effect, can prevent the destruction of impact vibration to the device.
In a word, the utility model discloses can make the ultrasonic pressure of strikeing the in-process invariable all the time, strike the orbit and be convenient for control, change in the short time and strike the position, realize that the ultrasonic impact parameterizes, promote the surface enhancement effect by a wide margin.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments;
FIG. 1 is a schematic structural view of an ultrasonic impact processing apparatus for quantitative surface strengthening according to the present invention;
FIG. 2 is a schematic structural diagram of a pressure loading system and a timing impact control system;
FIG. 3 is a schematic view of the connection between the upper slider (lower slider) and the Z-guide rail;
FIG. 4 is a hydraulic schematic of the timed impact control system.
Detailed Description
As shown in fig. 1-4, the ultrasonic impact processing device for quantitative surface strengthening of the present invention comprises a frame 1, a three-axis motion system and an ultrasonic impact device 2;
the three-axis motion system comprises an X-direction motion mechanism, a Y-direction motion mechanism and a Z-direction motion mechanism;
the X-direction movement mechanism comprises an X-direction sliding table 5, an X-direction screw rod 6 and an X-direction motor 7, the X-direction sliding table 5 is connected to a cross beam at the top of the rack 1 in an X-direction sliding manner, the X-direction screw rod 6 is connected to the cross beam at the top of the rack 1 in an X-direction rotating manner, the X-direction screw rod 6 is in transmission connection with a nut seat on the X-direction sliding table 5, and the X-direction motor 7 is in transmission connection with one end of the X-direction screw rod 6 (through a coupler);
the Y-direction movement mechanism comprises a Y-direction sliding table 8, a Y-direction screw rod 9 and a Y-direction motor 10, the Y-direction sliding table 8 is connected to the table top at the bottom of the rack 1 in a sliding mode along the Y direction, the Y-direction screw rod 9 is connected to the table top at the bottom of the rack 1 in a rotating mode along the Y direction, the Y-direction screw rod 9 is in transmission connection with a nut seat on the Y-direction sliding table 8, and the Y-direction motor 10 is in transmission connection with one end of the Y-direction screw rod 9 (through a coupler); the top of the Y-direction sliding table 8 is a clamping surface, a workpiece 12 to be machined is fixed on the clamping surface through a clamping mechanism 11, and the clamping mechanism 11 is fixed on the clamping surface through a bolt;
the Z-direction movement mechanism comprises a Z-direction guide rail 13 fixedly connected to the X-direction sliding table 5, a pressure loading system 3 and a timing impact control system 4 which are coaxially arranged on the X-direction sliding table 5, and the ultrasonic impact equipment 2 is connected to the Z-direction guide rail 13 in a sliding manner; the pressure loading system 3 is connected with the ultrasonic impact equipment 2 and is used for applying static load to the ultrasonic impact equipment 2; the timing impact control system 4 is connected with the ultrasonic impact device 2 and is used for rapidly lifting or lowering the ultrasonic impact device 2 to control the ultrasonic impact time.
The motion command controller controls the three-axis motion system to feed to a predetermined position to complete the positioning of the ultrasonic impact device 2.
The ultrasonic impact device 2 comprises an ultrasonic impact gun 21, a clamping fixing plate 22 and a power supply, wherein an upper slide block 23 and a lower slide block 24 are fixed on the back of the clamping fixing plate 22, the upper slide block 23 and the lower slide block 24 are respectively connected onto a Z-direction guide rail 13 in a sliding manner, and the Z-direction guide rail 13 and the upper slide block 23 and the lower slide block 24 are fed through rollers; the ultrasonic impact gun 21 is fixedly connected to the clamping fixing plate 22 through bolts and connected with a power supply to work.
The pressure loading system 3 is positioned above the ultrasonic impact device 2, the pressure loading system 3 comprises a pressure loading screw rod 31, a pressure loading motor 32, a pressure loading sliding table 33, a pressure loading sliding block 36, a spring 34 and a pressure sensor 35, the pressure loading sliding table 33 and the pressure loading sliding block 36 are sequentially connected onto the Z-direction guide rail 13 in a sliding manner from top to bottom, the pressure loading screw rod 31 is rotatably connected onto the X-direction sliding table 5 along the Z direction, the pressure loading screw rod 31 is in transmission connection with a nut seat on the pressure loading sliding table 33, and the pressure loading motor 32 is in transmission connection (through a coupler) with one end of the pressure loading screw rod 31; the pressure loading sliding table 33 applies pressure to the pressure loading sliding block 36, the pressure sensor 35 is fixed on the top surface of the upper sliding block 23 located on the back of the ultrasonic impact device 2, one end of the spring 34 is fixedly connected with the bottom of the pressure loading sliding block 36, and the other end of the spring 34 is connected to the detection end of the pressure sensor 35; the pressure loading motor 32 is controlled by the pressure instruction controller to drive the pressure loading screw rod 31 and the pressure loading sliding table 33 to feed, pressure is applied to the pressure loading sliding block 36 and the spring 34, the pressure is fed back to the pressure instruction controller by the pressure sensor 35, constant pressure output is achieved, and ultrasonic impact static load is conveniently adjusted.
The timing impact control system 4 is positioned below the ultrasonic impact equipment 2, and the timing impact control system 4 consists of a high-speed precise lifting mechanism which comprises a hydraulic cylinder 41, a hydraulic pump 42 and an electromagnetic directional valve 43; the hydraulic cylinder 41 is fixedly connected to the lower end of the X-direction sliding table 5 through a bolt, the tail end of a piston rod of the hydraulic cylinder 41 is in locking connection with the bottom surface of the lower sliding block 24 positioned on the back of the ultrasonic impact device 2 through a nut, and the hydraulic cylinder 41, the electromagnetic directional valve 43 and the hydraulic pump 42 are sequentially connected; the direction of feeding of a piston rod of the hydraulic cylinder 41 is changed by controlling a reversing valve through a timing impact instruction controller, so that the ultrasonic impact processing system is quickly lifted or descended, the ultrasonic impact processing system is quickly lifted after the set impact duration is finished at a specified position, and is quickly descended at the next position, and the purpose of controlling the ultrasonic impact time in unit area is achieved.
The Y-direction screw rod 9, the X-direction screw rod 6 and the pressure loading screw rod 31 are screw rods of the same type, and ball screw rods with nominal diameters of 16mm and lead lengths of 4mm are selected.
Because the movement speed required by the timing impact control system 4 is relatively high and is more than or equal to 10mm/s, the hydraulic cylinder 41 is selected to be a cylindrical hydraulic cylinder 41, the inner diameter of the cylinder is 40mm, the rod diameter of the piston rod is 25mm, and the outer diameter of the cylinder is 50mm.
The processing method adopting the ultrasonic impact processing device comprises the following steps:
step 1: a workpiece 12 is fixed on a clamping surface through a clamping mechanism 11, and the surface to be processed of the workpiece 12 is parallel to a horizontal plane;
step 2: the setting (track, speed, step length and the like) of the processing parameters required by the three-axis motion system is completed through the motion command controller:
(1) The feeding amount of one stroke of the three-axis motion system is 10 mu m, and the micro-feeding is carried out at the speed of 10-15 mm/min;
(2) The loading pressure value of the pressure loading system 3 is 1-500N; the precision is 1N; wherein:
ΔF＝ΔL×K
in the above formula,. DELTA.F-pressure; Δ L-Z feed; the K-coefficient can be set as K =1,1.5,2 \ 8230 \8230, 8230, 4,4.5,5;
(3) The feeding amount of the timing impact control system 4 is 1-2mm; the precision is 0.1mm; wherein:
ΔS 2 ＝Δt×v 2
namely:
the above formula: delta S 1 -a Z-feed; v. of 1 -a Z-direction feed speed; delta S 2 -X, Y feed; v. of 2 -X, Y feed speed; Δ t-time;
(4) Output power of ultrasonic impact device 2: 500-2000W; output frequency: 20-40kHz; output amplitude: 0-100um;
meanwhile, the motion instruction controller controls the three-axis motion system to feed to a preset position, and controls the ultrasonic impact equipment 2 to feed through the pressure loading system 3, so that the impact head of the ultrasonic impact gun 21 contacts the workpiece 12 to carry out pre-impact;
and step 3: after the pre-impact is finished, the pressure instruction controller controls the pressure loading system 3 to start to apply given pressure;
and 4, step 4: after the pressure application is completed, the ultrasonic impact gun 21 starts to impact;
and 5: after the current position is impacted, the timing impact instruction controller controls the timing impact control system 4, the ultrasonic impact gun 21 is lifted and descended in a short time through the high-speed precise lifting mechanism, and meanwhile, the three-axis motion system is rapidly fed to the next position through preset machining parameters.
The present invention is described in detail with reference to the attached drawings, but the present invention is not limited to the above embodiments, which are illustrative and not restrictive, and the person skilled in the art should understand that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.
Claims (4)
1. An ultrasonic impact machining device for quantitative surface strengthening is characterized in that: the ultrasonic impact device comprises a frame, a three-axis motion system and ultrasonic impact equipment;
the three-axis motion system comprises an X-direction motion mechanism, a Y-direction motion mechanism and a Z-direction motion mechanism;
the X-direction movement mechanism comprises an X-direction sliding table, an X-direction lead screw and an X-direction motor, the X-direction sliding table is connected to a cross beam at the top of the rack in a sliding manner along the X direction, the X-direction lead screw is connected to the cross beam at the top of the rack in a rotating manner along the X direction, the X-direction lead screw is in transmission connection with a nut seat on the X-direction sliding table, and the X-direction motor is in transmission connection with one end of the X-direction lead screw;
the Y-direction movement mechanism comprises a Y-direction sliding table, a Y-direction lead screw and a Y-direction motor, the Y-direction sliding table is connected to the table top at the bottom of the rack in a sliding manner along the Y direction, the Y-direction lead screw is connected to the table top at the bottom of the rack in a rotating manner along the Y direction, the Y-direction lead screw is in transmission connection with a nut seat on the Y-direction sliding table, and the Y-direction motor is in transmission connection with one end of the Y-direction lead screw; the top of the Y-direction sliding table is a clamping surface, and a workpiece to be machined is fixed on the clamping surface through a clamping mechanism;
the Z-direction movement mechanism comprises a Z-direction guide rail fixedly connected to the X-direction sliding table, and a pressure loading system and a timing impact control system which are coaxially arranged on the X-direction sliding table, and the ultrasonic impact equipment is connected to the Z-direction guide rail in a sliding manner; the pressure loading system is connected with the ultrasonic impact equipment and is used for applying static load to the ultrasonic impact equipment; the timing impact control system is connected with the ultrasonic impact equipment and used for rapidly lifting or descending the ultrasonic impact equipment to control the ultrasonic impact time.
2. An ultrasonic impact machining apparatus for quantitative surface peening according to claim 1, wherein: the ultrasonic impact device comprises an ultrasonic impact gun, a clamping fixing plate and a power supply, wherein an upper sliding block and a lower sliding block are fixed on the back of the clamping fixing plate and are respectively connected to a Z-direction guide rail in a sliding manner; the ultrasonic impact gun is fixedly connected to the clamping fixing plate through a bolt and is connected with a power supply to work.
3. An ultrasonic impact machining apparatus for quantitative surface peening according to claim 1, wherein: the pressure loading system is positioned above the ultrasonic impact equipment and comprises a pressure loading screw rod, a pressure loading motor, a pressure loading sliding table, a pressure loading sliding block, a spring and a pressure sensor, wherein the pressure loading sliding table and the pressure loading sliding block are sequentially connected onto a Z-direction guide rail in a sliding mode from top to bottom; the pressure loading sliding table applies pressure to the pressure loading sliding block, the pressure sensor is fixed on the top surface of the upper sliding block positioned on the back of the ultrasonic impact equipment, one end of the spring is fixedly connected with the bottom of the pressure loading sliding block, and the other end of the spring is connected to the detection end of the pressure sensor; the pressure loading motor is controlled by the pressure instruction controller to drive the pressure loading screw rod and the pressure loading sliding table to feed, pressure is applied to the pressure loading sliding block and the spring, the pressure is fed back to the pressure instruction controller by the pressure sensor, and constant pressure output is achieved.
4. An ultrasonic impact machining apparatus for quantitative surface peening according to claim 1, wherein: the timing impact control system is positioned below the ultrasonic impact equipment and consists of a high-speed precise lifting mechanism, and the high-speed precise lifting mechanism comprises a hydraulic cylinder, a hydraulic pump and an electromagnetic directional valve; the hydraulic cylinder is fixedly connected to the lower end of the X-direction sliding table through a bolt, the tail end of a piston rod of the hydraulic cylinder is in locking connection with the bottom surface of a lower sliding block positioned at the back of the ultrasonic impact equipment through a nut, and the hydraulic cylinder, the electromagnetic directional valve and the hydraulic pump are sequentially connected; the direction of feeding of a piston rod of the hydraulic cylinder is changed by controlling the reversing valve through the timing impact instruction controller, so that the ultrasonic impact processing system is quickly lifted or descended.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202222820084.6U CN218452810U (en) | 2022-10-25 | 2022-10-25 | Ultrasonic impact processing device for quantitative surface strengthening |
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| CN202222820084.6U CN218452810U (en) | 2022-10-25 | 2022-10-25 | Ultrasonic impact processing device for quantitative surface strengthening |
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| CN218452810U true CN218452810U (en) | 2023-02-07 |
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| CN202222820084.6U Expired - Fee Related CN218452810U (en) | 2022-10-25 | 2022-10-25 | Ultrasonic impact processing device for quantitative surface strengthening |
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Granted publication date: 20230207 |