CN215148179U - Large-scale component surface impact shot blasting system - Google Patents

Abstract

The utility model discloses a large-scale component surface impact shot blasting system, which comprises a robot horizontal guide rail, a horizontal guide rail motor, a guide rail carrying platform, an industrial robot arranged on the guide rail carrying platform, a robot control cabinet, a remote control cabinet, a dust collector, a quick-change tool arranged at the tail end of an arm of the industrial robot and a visual inspection device; the automatic shot blasting machine also comprises an electric control cabinet, an industrial control all-in-one machine and a bracket for installing an impact shot blasting device and an impact head, wherein the electric control cabinet is arranged on one side of the horizontal guide rail of the robot; the utility model adopts the industrial robot end clamping impact shot blasting device to carry out shot blasting operation on the surface of a large component, adopts a single impact shot blasting device, or flexibly combines the impact shot blasting devices with different specifications together, and the impact head of the impact shot blasting device can be flexibly replaced; in addition, the system also integrates a vision measurement system, a dust removal system and a shot blasting process, thereby greatly shortening the shot blasting operation time, improving the processing efficiency and the processing quality, improving the working environment on site and being extremely creative.

Description

Large-scale component surface impact shot blasting system

Technical Field

The utility model belongs to the technical field of the peening shaping, more specifically relates to a large-scale component surface impact peening system.

Background

Shot blasting is a surface strengthening process widely adopted in factories, has simple equipment and low cost, is not limited by the shape and the position of a workpiece, is convenient to operate, and has poor working environment. The shot blasting is widely used for improving the mechanical strength, the wear resistance, the fatigue resistance, the corrosion resistance and the like of parts, and can also be used for surface extinction, descaling, residual stress elimination of castings, forgings and weldments and the like. The shot blasting technology is a surface processing method which utilizes high-speed shot flow to impact the surface of a metal plate, so that the impacted surface and the metal material below the impacted surface generate plastic deformation and extend, and the plate is gradually subjected to bending deformation protruding towards the sprayed surface to achieve the required shape.

The large components such as wind power blades, airplane skins, high-speed rail bodies and the like are widely applied to the energy and traffic fields of China, the components need to stably work in a complex environment and have high requirements on the surface roughness, the mechanical property and the like, and therefore, the surface of the components needs to be subjected to extinction and descaling, the surface roughness is changed, the residual stress is eliminated by adopting a shot blasting process, and the wear resistance, the fatigue resistance, the corrosion resistance and the mechanical strength of the components are improved.

The traditional shot blasting method adopts a shot blasting gun to spray high-speed shot (steel shot, cast iron shot, glass shot, ceramic shot and the like) to bombard the surface of a component, and for large components with the characteristics of large volume, complex shape, difficulty in moving and the like, shot blasting treatment is carried out by adopting a mode that workers hold the shot blasting gun to bombard the surface of the component, so that the mode has the advantages of high labor intensity, low efficiency, incapability of ensuring processing quality, difficulty in recovering the shot, and great harm brought to the physical health of the workers due to high-concentration dust generated in the shot blasting process.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects or the improvement requirements in the prior art, the utility model provides a large component surface impact shot blasting system, which adopts the mode that the end of an industrial robot clamps an impact shot blasting device to carry out shot blasting operation on the surface of the large component, the end tool of the industrial robot can be a single impact shot blasting device, the impact shot blasting devices with different specifications can be flexibly combined together, and the impact head of the impact shot blasting device can be flexibly replaced; in addition, the system also integrates a vision measurement system, a dust removal system and a shot blasting process, thereby greatly shortening the shot blasting operation time, improving the processing efficiency and the processing quality, improving the working environment on site and freeing workers from the severe working environment; the utility model discloses an use ultrasonic wave, compressed air or electricity as the impact shot-blasting machine of energy source, collect large-scale component surface measurement and peening processing in an organic whole, can solve the unable realization that exists among the prior art and carry out high-efficient high-quality peening problem to large-scale component surface, to a great extent has improved the efficiency and the quality of large-scale component surface peening, and is extremely creative.

In order to achieve the purpose, the utility model provides a large-scale component surface impact shot blasting system, which comprises a robot horizontal guide rail, a horizontal guide rail motor and a guide rail carrying platform which are arranged on the robot horizontal guide rail, an industrial robot, a robot control cabinet, a remote control cabinet and a dust collector which are arranged on the guide rail carrying platform, a quick change tool and a visual inspection device which are arranged at the tail end of an arm of the industrial robot;

the robot further comprises an electric control cabinet, an industrial control integrated machine, an impact shot blasting device bracket and an impact head bracket which are arranged on one side of the horizontal guide rail of the robot;

the impact shot blasting device bracket is provided with an impact shot blasting device;

a quick-change tool matched with the quick-change tool at the tail end of the industrial robot is arranged on the side surface of the impact shot blasting device;

a plurality of impact heads are arranged on the impact head bracket;

the quick-change tool and the visual detection equipment are respectively and electrically connected with the remote control cabinet;

the robot control cabinet, the remote control cabinet, the dust collector and the horizontal guide rail motor are respectively and electrically connected with the electric control cabinet;

the industrial control all-in-one machine is respectively communicated with the visual detection equipment and a robot controller arranged in a robot control cabinet;

the robot controller is communicated with a PLC (programmable logic controller) installed in the electric control cabinet, so that the communication between the industrial control all-in-one machine and the PLC is realized;

the PLC controller communicates with distributed I/O modules installed in the remote control cabinet.

Further, the guide rail carrying platform can linearly move on the horizontal guide rail of the robot through the driving of a horizontal guide rail motor;

the industrial robot utilizes the quick change tool to grab the impact shot-blasting device on the impact shot-blasting device bracket.

Further, the head part of the single impact shot blasting device is provided with a sealing ring and a dust hood;

the dust hood is connected with the dust collector through a dust removal pipe.

Further, a plurality of different types of the impact peening apparatuses are installed in combination in a shield;

the protective cover is provided with a hairbrush for preventing dust from diffusing in the shot blasting operation process;

the dust collector is characterized in that a dust suction port is further arranged on the protective cover and connected with the dust collector through a dust removal pipe.

Further, the impact head is mounted on an impact gun;

the impact head is provided with a plurality of cavities, and the cavities are internally provided with matched firing pins.

Furthermore, an amplitude transformer is further arranged inside the impact gun, the root of the firing pin faces the amplitude transformer, and the head of the firing pin faces the outside;

the root diameter of the striker is greater than the diameter of the cavity.

Furthermore, a first air passage and a plurality of second air passages are also arranged in the impact head;

the first air passage is arranged in the impact head and is arranged along the circumferential direction of the impact head;

the first air passage divides the cavity into two sections, one section is close to the amplitude transformer, and the other section is close to the outside and is communicated with the outside.

Further, the second air passage is arranged at one end, close to the amplitude transformer, of the impact head;

the second air passage and the cavity close to the amplitude transformer are arranged in the same direction and are through holes, and the diameter of the second air passage is smaller than that of the cavity.

Furthermore, an energy converter is installed in the impact gun and is in contact with the amplitude transformer.

Generally, through the utility model discloses above technical scheme who conceives compares with prior art, can gain following beneficial effect:

(1) the utility model discloses a large-scale component surface impact shot-blasting system, through the host computer control software in the industrial control all-in-one to robot controller send control command, and then control the robot action, the industrial control all-in-one also can send control command to the PLC controller, control equipment such as horizontal guide rail motor, dust arrester, impact shot-blasting machine action; the shot blasting mode that an industrial robot replaces a manual handheld shot blasting machine to spray high-speed shot on the surface of a large component is adopted, the system integrates vision measurement, a dust removal system and a shot blasting process, shot blasting operation time is greatly shortened, machining efficiency is improved, machining quality is improved, and the working environment of a site is improved.

(2) The utility model discloses a large-scale component surface impact peening system measures the regionalism through setting up vision measuring mechanism to large-scale component surface, realizes that vision check out test set avoids secondary location, repeated measuring's problem to the high accuracy measurement on large area surface, has improved the peening coverage and the machining precision on large-scale component surface, guarantees component surface machining quality.

(3) The utility model discloses a large-scale component surface impact shot blasting system, which adopts an impact shot blasting device taking ultrasonic waves, compressed air or electricity as an energy source, and solves the problem that the prior art can not realize high-efficiency high-quality shot blasting treatment on the surface of a large-scale component; the industrial robot end tool can be a single impact shot blasting device, and can flexibly combine impact shot blasting devices of different specifications together, and an impact head of the impact shot blasting device can be flexibly replaced, so that the shot blasting efficiency can be improved on the whole.

Drawings

FIG. 1 is a schematic structural diagram of a surface impact peening system for a large component according to the present invention;

FIG. 2 is a schematic view of the installation of a single impact shot-blasting device of the surface impact shot-blasting system for large components of the present invention;

FIG. 3 is a schematic view of a multi-shot blasting apparatus assembly structure of the surface shot blasting system for large components of the present invention;

FIG. 4 is a partial sectional view of an impact peening device of a large member surface impact peening system of the present invention;

FIG. 5 is a schematic structural diagram of an impact head of an impact shot-blasting device of the surface impact shot-blasting system for large components according to the present invention;

FIG. 6 is a flow chart of the working method of the surface impact peening system for large components of the present invention.

In all the figures, the same reference numerals denote the same features, in particular: 1-large-scale component, 11-electric control cabinet, 12-industrial control all-in-one machine, 13-impact shot blasting device bracket, 131-impact shot blasting device, 132-impact head, 1321-cavity, 1322-first air passage, second air passage 1323, 133-sealing ring, 134-dust hood, 14-impact head bracket, 2-robot horizontal guide rail, 21-horizontal guide rail motor, 22-guide rail carrying platform, 221-industrial robot, 201-quick-change tool, 202-visual inspection equipment, 222-robot control cabinet, 223-remote control cabinet, 224-dust collector, 3-firing pin, 4-flange, 5-protective cover, 51-brush, 52-dust collection opening, 6-impact gun and amplitude transformer 61.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention. Furthermore, the technical features mentioned in the embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "provided" are to be interpreted broadly, for example, as being either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

As shown in fig. 1-5, the present invention provides a large-scale component surface impact shot blasting system, which comprises a robot horizontal guide rail 2, a horizontal guide rail motor 21 and a guide rail carrier 22 mounted on the robot horizontal guide rail 2, an industrial robot 221, a robot control cabinet 222, a remote control cabinet 223 and a dust collector 224 mounted on the guide rail carrier 22, a quick change tool 201 and a vision inspection device 202 mounted at the end of the arm of the industrial robot 221; the robot further comprises an electric control cabinet 11, an industrial control integrated machine 12, an impact shot blasting device bracket 13 and an impact head bracket 14 which are arranged on one side of the horizontal guide rail 2 of the robot, so that the arrangement saves space and is convenient to control; the industrial control all-in-one machine 12 is respectively communicated with a robot controller arranged in the visual detection equipment 202 and a robot control cabinet 222, and the robot controller is communicated with a PLC (programmable logic controller) arranged in the electric control cabinet 11, so that the communication between the industrial control all-in-one machine 12 and the PLC is realized; when the robot works, the large-scale component 1 is arranged on one side of the horizontal guide rail 2 of the robot on the working table surface, related control programs are started, upper computer control software in the industrial control all-in-one machine 12 sends a control instruction to a robot controller so as to control the robot to act, and the industrial control all-in-one machine can also send a control instruction to a PLC controller so as to control the actions of equipment such as a horizontal guide rail motor, a dust collector, an impact shot blasting device and the like; the shot blasting mode that an industrial robot replaces a manual handheld shot blasting machine to spray high-speed shot on the surface of the large component 1 is adopted, the system integrates vision measurement, a dust removal system and a shot blasting process, shot blasting operation time is greatly shortened, machining efficiency is improved, machining quality is improved, and the working environment of a site is improved.

Further, as shown in fig. 1-5, an impact shot-blasting machine 131 is mounted on the impact shot-blasting machine bracket 13, and a quick-change tool matched with the quick-change tool at the end of the industrial robot 221 is mounted on the side surface of the impact shot-blasting machine 131 so as to be convenient for replacement or combined use; a plurality of impact heads 132 are arranged on the impact head bracket 14 for flexible replacement; the quick-change tool 201 and the visual inspection equipment 202 are respectively electrically connected with the remote control cabinet 223; the robot control cabinet 222, the remote control cabinet 223, the dust collector 224 and the horizontal guide rail motor 21 are respectively electrically connected with the electric control cabinet 11; the industrial control all-in-one machine 12 is respectively communicated with a robot controller arranged in a visual detection device 202 and a robot control cabinet 222, the robot controller is communicated with a PLC (programmable logic controller) arranged in an electric control cabinet 11, so that the communication between the industrial control all-in-one machine 12 and the PLC is realized, and the PLC is communicated with a distributed I/O module ET200SP arranged in a remote control cabinet 223; the rail carrier 22 can be driven by a horizontal rail motor 21 to move linearly on the robot horizontal rail 2, and an industrial robot 221 grips the impact peening device 131 on the impact peening device holder 13 by using a quick change tool 201.

Further, as shown in fig. 2, a sealing ring 133 and a dust hood 134 are installed at the head of the single impact peening device 131, and the dust hood 134 is connected to the dust collector 224 through a dust removal pipe to absorb dust generated during peening operation, thereby greatly reducing dust concentration, improving field environment, and freeing workers from a severe working environment.

Further, as shown in fig. 3, a plurality of impact peening devices 131 of different types or specifications are installed in combination in a protective cover 5, a brush 51 is installed on the protective cover 5 and used for preventing dust from diffusing during peening operation, a flange 4 is installed below the protective cover 5, and a quick-change tool matched with the quick-change tool at the tail end of the industrial robot 221 is installed on the flange 4; the protective cover 5 is also provided with a dust suction port 52, and the dust suction port 52 is connected with the dust collector 224 through a dust removal pipe; as shown in fig. 5, the impact shot-blasting device 131 has impact heads with different specifications, and the impact heads can be flexibly replaced aiming at the surfaces of large components with different shapes; in the shot blasting operation process, the impact shot blasting device can be flexibly replaced through the quick-change tool, the impact shot blasting devices with different types such as ultrasonic impact, pneumatic impact, electric impact and the like can be flexibly combined and applied, the impact head of the impact shot blasting device can also be flexibly replaced, and the shot blasting processing efficiency is integrally improved.

Further, as shown in fig. 4, the impact head 132 is mounted on the impact gun 6; a plurality of cavities 1321 are arranged on the impact head 132, and matched firing pins 3 are arranged in the cavities 1321; the impact gun 6 is also internally provided with a horn 61, the root of the firing pin 3 faces the horn 61, and the head faces the outside; the root diameter of the striker 3 is larger than the diameter of the cavity 1321; the impact head 132 is also internally provided with a first air passage 1322 and a plurality of second air passages 1323; the first air passage 1322 is provided inside the impact head 132 and arranged in a circumferential direction of the impact head 132; the first air channel 1322 divides the cavity 1321 into two sections, one section is close to the amplitude transformer 61, and the other section is close to the outside and is communicated with the outside; the second air passage 1323 is arranged at one end of the impact head 132 close to the amplitude transformer 61; the second air passage 1323 is a through hole in the same arrangement direction as the cavity 1321 close to the horn 61, and the diameter of the through hole is smaller than that of the cavity 1321.

Further, as shown in fig. 4, a transducer is installed in the impact gun 6, and the transducer is in contact with the horn 61; when the striker 3 is not mounted on the impact head 132, the first air passage 1322 is communicated with the cavity 1321 and the second air passage 1323, and the second air passage 1323 is communicated with an external air pump through the inside of the impact gun 6; when the transducer starts to work, the amplitude transformer 61 vibrates at a high speed and acts on the striker 3, the striker 3 performs impact motion along the cavity 1321 in the direction away from the amplitude transformer 61, when the striker 3 impacts the surface of a member to be processed or reaches the maximum stroke, the root of the striker 3 is contacted with the end surface of the cavity 1321 close to the amplitude transformer 61, and the first air passage 1322 and the second air passage 1323 are connected to form a sealed space; then, the firing pin 3 rebounds towards the direction of the horn 61, an external air pump works to form negative pressure suction to increase the rebounding force of the firing pin 3, when the head of the firing pin 3 retreats to the position of the second air passage 1323, the second air passage 1323 is connected with the outside by the cavity 1321 close to the outside, at this time, the first air passage 1322 and the second air passage 1323 are no longer closed spaces, and the negative pressure disappears; the striker 3 is in contact with the horn 61, and the striker 3 performs an impact motion again by the high-speed vibration of the horn 61, thereby realizing the reciprocating motion of the striker 3.

As shown in fig. 6, the operation method of the large member surface impact peening system includes the following steps:

firstly, calibrating a series of coordinate systems of a large component and an industrial robot by using a laser tracker, unifying a global coordinate system, and determining the relative position of an industrial robot end impact shot blasting device and the large component;

secondly, dividing the surface of the large component into different areas for measurement, specifically, controlling the motion of a horizontal guide rail motor and an industrial robot through upper computer software in the industrial control all-in-one machine, measuring the surface of the large component to be shot-peed by using visual detection equipment at the tail end of the industrial robot, and transmitting the measurement data to image processing software in the industrial control all-in-one machine;

thirdly, combining the measured data into complete point cloud data by image processing software in the industrial control all-in-one machine, then carrying out digital modeling and analysis, determining a shot blasting strategy by upper computer control software in the industrial control all-in-one machine, generating path planning of the robot by offline programming software, and finally generating a control program of the robot;

and fourthly, the upper computer control software issues a control command to the robot controller and the PLC, controls the horizontal guide rail motor and the industrial robot to grab an appointed impact shot blasting device through a quick-change tool, controls different types of impact shot blasting devices to carry out shot blasting operation on the surface of the large component through the PLC, and can automatically replace the proper impact shot blasting device according to the control command issued by the upper computer software in the shot blasting operation process.

The utility model provides a pair of large-scale component surface impact peening system's theory of operation:

respectively electrically connecting the quick-change tool and the visual detection equipment with a remote control cabinet; respectively and electrically connecting the robot control cabinet, the remote control cabinet, the dust collector and the horizontal guide rail motor with the electric control cabinet; the industrial control all-in-one machine is respectively communicated with a vision detection device and a robot controller arranged in a robot control cabinet, the robot controller is communicated with a PLC (programmable logic controller) arranged in an electric control cabinet, so that the communication between the industrial control all-in-one machine and the PLC is realized, and the PLC is communicated with a distributed I/O module ET200SP arranged in a remote control cabinet; the industrial control all-in-one machine can also send control instructions to the PLC controller to control the actions of equipment such as a horizontal guide rail motor, a dust collector, an impact shot blasting device and the like; the impact shot blasting device with ultrasonic waves, compressed air or electricity as an energy source solves the problem that the surface of a large member cannot be subjected to high-efficiency high-quality shot blasting treatment in the prior art; the utility model uses the mode of clamping the impact shot-blasting device at the end of the industrial robot to carry out shot-blasting operation on the surface of the large component, the end tool of the industrial robot can be a single impact shot-blasting device, the impact shot-blasting devices with different specifications can be flexibly combined together, and the impact head of the impact shot-blasting device can be flexibly replaced; in addition, the system also integrates a vision measurement system, a dust removal system and a shot blasting process, thereby greatly shortening the shot blasting operation time, improving the processing efficiency and the processing quality, improving the working environment on site and freeing workers from the severe working environment; the surface of the large-scale component is divided into measurement areas, so that the high-precision measurement of the surface of the large area by the visual detection equipment is realized, the problems of secondary positioning and repeated measurement are avoided, the shot blasting coverage rate and the machining precision of the surface of the large-scale component are improved, and the surface machining quality of the component is ensured; the utility model discloses collect large-scale component surface measurement and peening in an organic whole, to a great extent has improved the efficiency and the quality of large-scale component surface peening, and is extremely creative.

It will be understood by those skilled in the art that the foregoing is merely a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included within the scope of the present invention.

Claims (9)

1. A large-scale component surface impact peening system is characterized in that: the device comprises a robot horizontal guide rail (2), a horizontal guide rail motor (21) and a guide rail carrier (22) which are arranged on the robot horizontal guide rail (2), an industrial robot (221) which is arranged on the guide rail carrier (22), a robot control cabinet (222), a remote control cabinet (223), a dust collector (224), a quick-change tool (201) which is arranged at the tail end of an arm of the industrial robot (221) and a visual inspection device (202);

the robot further comprises an electric control cabinet (11) arranged on one side of the horizontal guide rail (2) of the robot, an industrial control integrated machine (12), an impact shot blasting device bracket (13) and an impact head bracket (14);

the impact shot blasting device bracket (13) is provided with an impact shot blasting device (131);

a quick-change tool matched with the quick-change tool at the tail end of the industrial robot (221) is mounted on the side surface of the impact shot blasting device (131);

a plurality of impact heads (132) are arranged on the impact head bracket (14);

the quick-change tool (201) and the visual detection device (202) are respectively electrically connected with the remote control cabinet (223);

the robot control cabinet (222), the remote control cabinet (223), the dust collector (224) and the horizontal guide rail motor (21) are respectively and electrically connected with the electric control cabinet (11);

the industrial control all-in-one machine (12) is respectively communicated with the vision detection equipment (202) and a robot controller arranged in a robot control cabinet (222);

the robot controller is communicated with a PLC (programmable logic controller) installed in the electric control cabinet (11), so that the communication between the industrial control all-in-one machine (12) and the PLC is realized;

the PLC controller communicates with distributed I/O modules installed in the remote control cabinet (223).

2. The large-scale component surface impact peening system of claim 1, wherein: the guide rail carrying platform (22) can move linearly on the horizontal guide rail (2) of the robot by being driven by a horizontal guide rail motor (21);

the industrial robot (221) grips the shot-peening machine (131) on the shot-peening machine carrier (13) by means of a quick-change tool (201).

3. The large-scale component surface impact peening system of claim 2, wherein: the head of each impact shot blasting device (131) is provided with a sealing ring (133) and a dust hood (134);

the dust hood (134) is connected with the dust collector (224) through a dust removal pipe.

4. The large-scale component surface impact peening system of claim 2, wherein: a plurality of different types of the impact shot blasting devices (131) are installed in combination in the protective cover (5);

the protective cover (5) is provided with a brush (51) for preventing dust from diffusing in the shot blasting process;

the protective cover (5) is also provided with a dust suction opening (52), and the dust suction opening (52) is connected with the dust collector (224) through a dust removal pipe.

5. The large-scale member surface impact peening system according to any one of claims 1 to 4, wherein: the impact head (132) is mounted on an impact gun (6);

the impact head (132) is provided with a plurality of cavities (1321), and the cavities (1321) are internally provided with matched firing pins (3).

6. The large-scale component surface impact peening system of claim 5, wherein: the impact gun (6) is also internally provided with a horn (61), the root of the firing pin (3) faces the horn (61), and the head of the firing pin faces the outside;

the root diameter of the firing pin (3) is larger than the diameter of the cavity (1321).

7. The large-scale component surface impact peening system of claim 6, wherein: a first air passage (1322) and a plurality of second air passages (1323) are further arranged in the impact head (132);

the first air passage (1322) is arranged inside the impact head (132) and along the circumferential direction of the impact head (132);

the first air channel (1322) divides the cavity (1321) into two sections, one section is close to the amplitude transformer (61), and the other section is close to the outside and is communicated with the outside.

8. The surface impact peening system for large scale components according to claim 7, wherein: the second air passage 1323 is arranged at one end, close to the amplitude transformer 61, of the impact head 132;

the second air passage 1323 and the cavity 1321 close to the amplitude transformer 61 are arranged in the same direction, are through holes and have a diameter smaller than that of the cavity 1321.

9. The surface impact peening system for large scale components according to claim 7, wherein: and a transducer is arranged in the impact gun (6) and is in contact with the amplitude transformer (61).

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