Particle shot blasting machine for surface strengthening of harmonic flexible gear

Abstract

The invention relates to the technical field of metal surface treatment, in particular to a particle shot blasting machine for harmonic flexible gear surface strengthening, which comprises a machine body, a closed cavity is arranged on the machine body, an operation table for placing a to-be-processed flexible gear is rotatably arranged in the cavity, and a spray gun, a circulating filtering and screening module and a first driving part are arranged in the cavity; the machine body is further provided with an electrical control module and a three-dimensional driving module. Through cooperative use of the electric control module, the three-dimensional driving module and the first driving part, shot blasting machining of the harmonic flexible gear at different angles is achieved, then sprayed shot blasting is recycled through the circulating filtering and screening module, impurities are filtered out, then the shot blasting is supplied to the spray gun in a circulating mode, and therefore recycling of the shot blasting is achieved, and the service life of the harmonic flexible gear is prolonged. The situation that particle pellets leak in the form of dust is relieved, and meanwhile the implanting effect of residual stress on the surface of the flexible gear is guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of metal surface treatment, and in particular to a particle shot peening machine for strengthening the surface of a harmonic flexible wheel. Background Art

[0002] Shot peening is a metal surface strengthening process widely used internationally. It is a cold processing process that uses pellets to bombard the workpiece surface and implant residual compressive stress to improve the fatigue strength of the workpiece. Among them, micro-particle shot peening is a special shot peening process. The micro-particle shot (shot size: 0.02mm-0.1mm) is accelerated to a very high speed (100~250m / s) through compressed air, and then hits the surface of the treated parts to form a surface cold-working hardened layer with high surface hardness and residual compressive stress, which enhances the material's wear resistance and improves fatigue performance by multiples.

[0003] The harmonic reducer is a unique mechanical gear system that has the characteristics of zero backlash, high precision, high torque, etc., and has a high reduction ratio in a light and compact structure. The harmonic reducer consists of three key components: wave generator, flexible wheel and steel wheel. The shape of the flexible wheel can be divided into cup shape and top hat shape. As a thin-walled high-precision metal component, the flexible wheel is made of flexible and highly torsion-resistant alloy steel material. The wall of the flexible wheel is thinner so that it can be deformed after the movement of the wave generator, but the deformation will cause fatigue damage to the flexible wheel body. Therefore, how to improve the fatigue resistance of the flexible wheel is one of the keys to increase the life of the harmonic reducer.

[0004] During the processing of top-hat-shaped flexible disc workpieces, the requirements for the shot-peening parts of the flexible disc and the deformation after shot peening (generally the roundness is less than 30 microns and the height is less than 80 microns) are very stringent. Therefore, the process accuracy requirements for shot peening are very high. When the top-hat-shaped flexible disc workpiece is shot peening, different pressures and speeds need to be used for shot peening of different parts. The deformation is mainly caused by shot peening of the upper and lower flanges of the top-hat-shaped flexible disc. Therefore, it is usually necessary to accurately control the pressure of the upper and lower flanges and the speed of shot peening, and ensure the stability of the flow rate, so as to minimize the deformation of the flexible disc after shot peening.

[0005] For the processing of the above-mentioned top-hat-shaped flexible disc workpiece, the micro-particle shot peening machines currently on the market are usually converted from traditional conventional diameter shot peening machines. Since the process requirements of ultra-precision transmission parts are different from those of ordinary transmission parts, when using the above-mentioned conversion shot peening machine to implant residual stress on the surface of the top-hat-shaped flexible disc workpiece, there are problems such as poor surface residual stress implantation effect, low production efficiency and unstable shot peening effect; in addition, when the above-mentioned conversion shot peening machine is used in the process of micro-particle shot peening, the shot is easily leaked in the form of dust, which leads to an increase in the overall use cost and is relatively inconvenient to use overall. Summary of the invention

[0006] In order to ensure the residual stress implantation effect on the surface of the top-hat flexspline workpiece and slow down the leakage of the micro-particles in the form of dust during the process of implanting residual stress on the surface of the top-hat flexspline workpiece, the present application provides a micro-particle shot peening machine for harmonic flexspline surface strengthening.

[0007] The present application provides a microparticle shot peening machine for harmonic flexible wheel surface strengthening, which adopts the following technical solution: A particle shot peening machine for strengthening the surface of a harmonic flexible impeller comprises a machine body, a sealed chamber is arranged on the machine body, an operating table for placing the flexible impeller to be processed is rotatably arranged in the chamber, a spray gun, a circulating filtering and screening module for recovering and filtering the shot, and a first driving member for driving the operating table to rotate are arranged in the chamber, and an electrical control module for supplying air and electricity and a three-dimensional driving module for driving the spray gun to move are also arranged on the machine body.

[0008] By adopting the above technical solution, when in use, the electrical control module supplies air and electricity to the overall operation of the shot peening machine, the three-dimensional drive module drives the spray gun to move, and then cooperates with the first drive member to drive the operating table to rotate, so as to perform shot peening processing on different angles of the harmonic flexible wheel, so as to ensure the residual stress implantation effect on the surface of the flexible wheel, and then through the use of the closed chamber and the circulation filtering and screening module, the sprayed shot is recovered and the impurities are filtered, and then the shot is circulated to the spray gun, so as to realize the recycling of the shot, and at the same time, it also slows down the leakage of the fine shot in the form of dust, saving the processing cost.

[0009] Preferably, the three-dimensional driving module includes a first fixed seat fixed on the body, a first slide seat sliding on the first fixed seat in a horizontal direction, a second driving member for driving the first slide seat to slide, a second fixed seat fixed on the first slide seat, a second slide seat sliding on the second fixed seat in a vertical direction, a third driving member for driving the second slide seat to slide, a mounting seat fixed on the second slide seat, a third fixed seat rotating on the mounting seat, and a driving assembly for driving the third fixed seat to rotate, and the spray gun is mounted on the third fixed seat.

[0010] By adopting the above technical solution, when in use, the first slide is driven to move by the second driving member, the second slide is driven to move by the third driving member, and the third fixed seat is driven to rotate by the driving assembly, so as to control the angle of the position of the spray gun, thereby realizing shot peening processing at different positions of the flexible wheel surface, thereby ensuring the residual stress implantation effect on the flexible wheel surface.

[0011] Preferably, the driving assembly includes a first rotating shaft rotating on the mounting seat, a fourth driving member mounted on the mounting seat for driving the first rotating shaft to rotate, a second rotating shaft rotating on the mounting seat, and a reducer arranged between the first rotating shaft and the second rotating shaft, the axis of the first rotating shaft and the axis of the second rotating shaft are arranged vertically, and the first rotating shaft is coaxially fixedly connected to the input shaft of the reducer, the second rotating shaft is coaxially fixedly connected to the output shaft of the reducer, and the third fixed seat is fixed on the second rotating shaft.

[0012] By adopting the above technical solution, the first rotating shaft is driven to rotate by the fourth driving member during use. Under the action of the reducer, the rotation of the first rotating shaft synchronously drives the second rotating shaft to rotate, thereby driving the third fixed seat to drive the spray gun to rotate around the axis of the second rotating shaft.

[0013] Preferably, the circulating filtration and screening module includes a silo for supplying materials into the spray gun, a vacuum loader for supplying materials into the silo, a recovery silo for recovering the pills, and a screening assembly for filtering and screening the pills. The screening assembly is located between the silo and the vacuum loader, and the silo, vacuum loader, recovery silo and screening assembly are connected by a material delivery pipeline, and the recovery silo opening is connected to the chamber.

[0014] By adopting the above technical scheme, a negative pressure state is provided by the vacuum feeder during use, and the pellets in the recovery bin enter the container of the vacuum feeder through the feeding pipe, and then enter the screening component from the container of the vacuum feeder. After being screened by the screening component, the intact pellets are input into the hopper, and then flow along the hopper to the spray gun, and finally sprayed out from the spray gun. The sprayed pellets hit the surface of the flexible wheel and then rebound and fall into the recovery bin again, thereby realizing the recycling of the pellets. The overall use is simple and convenient. At the same time, the vacuum feeder is used to ensure the recovery efficiency of the pellets, and also effectively reduce the possibility of the pellets being easily blocked in the feeding pipe.

[0015] Preferably, the screening assembly includes an ultrasonic rotary vibrating screen and a waste collection bucket, the ultrasonic rotary vibrating screen is provided with a first outlet for discharging waste and a second outlet for discharging pellets, the first outlet is connected to the waste collection bucket, and the second outlet is connected to the silo.

[0016] By adopting the above technical solution, when in use, the pellets are screened by the ultrasonic rotary vibrating screen, so that the dust or entrained impurities in the pellets are discharged from the first outlet to the waste collection bucket, and the intact tiny pellets enter the silo from the second outlet for subsequent recycling. In addition, the use of the ultrasonic rotary vibrating screen ensures the screening efficiency of the micro-particle pellets and avoids the phenomenon of dust-like pellets clogging the screen.

[0017] Preferably, the machine body includes a first box body and a guardrail fixed on the first box body, the chamber is arranged on the first box body, a discharge port is opened on the first box body, a flip door for blocking the discharge port is rotatably connected to the first box body, a first sealing structure is arranged on the flip door, a fifth driving member for driving the flip door to rotate is arranged on the first box body, a flip table is fixedly connected to the flip door, the operating table and the first driving member are both arranged on the flip table, and an avoidance groove for avoiding the rotation of the flip table is opened on the guardrail.

[0018] By adopting the above technical solution, when in use, the fifth driving member drives the flip door to rotate, thereby rotating the operating table out of the chamber, so that it is convenient for the staff to place the flexible wheel on the operating table or replace the flexible wheel. When the flexible wheel is rotated into the chamber with the operating table, the connecting gap between the flip door and the first box body is sealed by the first sealing structure, so as to ensure that the chamber is in a closed environment. The overall use is simple and convenient.

[0019] Preferably, the first sealing structure comprises a sealing airbag arranged on the peripheral side of the flip door, a placement groove is opened on the peripheral side of the flip door, and the sealing airbag is located in the placement groove.

[0020] By adopting the above technical solution, when the operating table is rotated into the chamber along with the flip door during use, the sealing airbag can be supplied with air through the electrical control module, so that the sealing airbag expands to press against the side wall of the discharge port on the first box body, thereby the casing seals the connecting gap between the flip door and the first box body.

[0021] Preferably, there are two flip tables, and the two flip tables are symmetrically arranged on both sides of the flip door, there are several operating tables, and a part of the operating tables are arranged on one flip table, and another part of the operating tables are arranged on another flip table, and the first driving member is arranged in plurality corresponding to the operating tables.

[0022] By adopting the above technical solution, when in use, turning tables are arranged on both sides of the turning door, and several operating tables are arranged on the two turning tables, so as to realize the synchronous processing of several flexible wheels, and at the same time, the purpose of alternating materials is achieved by turning the turning door. The overall use is simple and convenient, and the processing efficiency is also improved.

[0023] Preferably, an inspection opening is provided on the first box body, an inspection door for blocking the inspection opening is provided on the first box body, and a second sealing structure for sealing a connecting gap between the inspection door and the first box body is provided on the inspection door.

[0024] By adopting the above technical solution, when in use, the inspection port is provided to facilitate users to maintain the equipment in the chamber, and the coordinated use of the inspection door and the second sealing structure ensures the sealing effect in the chamber during non-maintenance time periods.

[0025] Preferably, a gas replenishment port is provided on the first box body, the gas replenishment port is communicated with the interior of the chamber, and a foreign matter isolation punching plate is provided at the gas replenishment port.

[0026] By adopting the above technical solution, when in use, the use of the circulating filtration module will cause the chamber to be in a negative pressure state. At this time, gas can be added to the chamber through the gas supply port, and the foreign matter isolation punching plate arranged at the gas supply port is used to prevent the leakage of the pill material caused by the leakage of a small amount of gas in the chamber from the gas supply port.

[0027] In summary, the present application includes at least one of the following beneficial technical effects: The operation of the shot peening machine is controlled by the electrical control module to control the conveying of the shot materials. The spray gun is driven to move by the three-dimensional driving module, and then the operating table is driven to rotate in cooperation with the first driving member, so as to perform shot peening processing on different angles of the harmonic flexible wheel, so as to ensure the residual stress implantation effect on the surface of the flexible wheel. Then, the closed chamber is used in cooperation with the circulating filtering and screening module to realize the recovery of the ejected shot and filter the impurities, and then the shot is circulated to the spray gun, so as to realize the recycling of the shot, and at the same time, it also slows down the leakage of the fine shot in the form of dust, saving the processing cost; The vacuum feeder is used to ensure the recovery efficiency of the shot, and the possibility of the shot being easily blocked in the feed pipe is effectively reduced. The ultrasonic rotary vibrating screen is used to ensure the screening efficiency of the micro-particle shot, and the phenomenon of dust-like shot blocking the screen is avoided, thereby ensuring the stability of the shot peening machine operation. Through the coordinated use of the flip door, the inspection door, the first sealing structure and the second sealing structure, it is convenient for the staff to replace the flexible wheel for processing and maintain the equipment in the chamber, while also ensuring the sealing effect in the chamber during the operation of the shot peening machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is an axonometric diagram mainly showing the overall structure in the embodiment of the present application; Figure 2 It is an exploded view mainly showing the structure of the machine body in the embodiment of the present application; Figure 3 It is a cross-sectional view mainly showing the internal structure of the machine body in the embodiment of the present application; Figure 4 This is an exploded view of the flip door structure in the embodiment of the present application; Figure 5This is a schematic diagram mainly showing the structure inside the first box in the embodiment of the present application; Figure 6 It is an axonometric diagram mainly showing the structure of a three-dimensional driving module in an embodiment of the present application; Figure 7 It is an exploded diagram mainly showing the structure of the driving assembly in the embodiment of the present application; Figure 8 It is an axonometric schematic diagram mainly showing the follower seal structure in the embodiment of the present application; Fig. 9 is a schematic diagram mainly showing the structure inside the second box in the embodiment of the present application; Fig.10 It is a schematic diagram of the process of shot peening in the embodiment of the present application; Fig.11 It is an axonometric diagram mainly showing the structure of the electrical control module in the embodiment of the present application; Fig.12 It is a schematic diagram mainly showing the structure of the inspection door in the embodiment of the present application; Fig.13 It is a cross-sectional view mainly showing the structure of the gas supply port in the embodiment of the present application.

[0029] Figure numerals: 1, machine body; 11, first box body; 111, discharge port; 112, inspection port; 12, second box body; 13, guardrail; 131, avoidance groove; 14, flip door; 141, first sealing structure; 142, fifth driving member; 143, flip table; 144, placement groove; 15, inspection door; 151, observation window; 153, light bar; 16, air supply port; 161, guide plate; 162, foreign body isolation punching plate; 2, chamber; 3, operating table; 4, spray gun; 5, circulating filtration and screening module; 51, silo; 52, vacuum loader; 521, vacuum loader; 522, vortex fan; 53, recovery bin; 54, screening component; 541, ultrasonic rotary vibration screen; 542, waste collection Collecting barrel; 6. First driving member; 7. Electrical control module; 71. Electrical box; 72. Ventilation pipeline; 8. Three-dimensional driving module; 81. First fixed seat; 82. First slide seat; 83. Second driving member; 84. Second fixed seat; 85. Second slide seat; 86. Third driving member; 87. Mounting seat; 88. Third fixed seat; 89. Driving assembly; 891. First rotating shaft; 892. Fourth driving member; 893. Second rotating shaft; 894. Reducer; 895. Protective shell; 9. Fixed frame; 10. Protective cover; 20. Follow-up sealing structure; 201. Guide plate; 202. Sealing plate; 203. PE plate; 204. PE fixed plate; 30. Lifting ring; 40. Forklift hole; 50. Corrugated casing. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-Attached Fig.13 This application is described in further detail.

[0031] The embodiment of the present application discloses a particle shot peening machine for strengthening the surface of a harmonic flexible wheel.

[0032] Reference Figure 1 and Figure 2 A particle shot peening machine for strengthening the surface of a harmonic flexible wheel includes a horizontally placed body 1, which is composed of a first box body 11, a second box body 12 and a guardrail 13. The second box body 12 and the guardrail 13 are respectively located at two ends of the first box body 11, and the second box body 12 and the guardrail 13 are fixed to the first box body 11 by bolts. The first box body 11 and the second box body 12 enclose a chamber 2.

[0033] Reference Figure 2 and Figure 3 A discharge port 111 is provided on one side of the first box body 11 near the guardrail 13, and the discharge port 111 is communicated with the chamber 2. A reversing door 14 is rotatably connected to the first box body 11, and a fifth driving member 142 is provided on the first box body 11. The fifth driving member 142 is used to drive the reversing door 14 to rotate. In this embodiment, the fifth driving member 142 is preferably configured as a driving motor, and the output shaft of the driving motor is keyed to the rotating shaft of the reversing door 14. An avoidance groove 131 for avoiding the rotation of the reversing door 14 is provided on the guardrail 13; when in use, the reversing door 14 is driven to rotate by the output shaft of the driving motor, so as to realize the control of the rotation and opening of the reversing door 14, so as to facilitate the staff to put the flexible wheel to be processed into the chamber 2.

[0034] Reference Figure 4 The side walls around the flip door 14 are provided with an annular placement groove 144, and a first sealing structure 141 is arranged in the placement groove 144. The first sealing structure 141 is a sealing airbag. When the flip door 14 is rotated to block the discharge port 111, the sealing airbag can be inflated to expand the sealing airbag, thereby sealing the gap between the flip door 14 and the first box body 11, thereby ensuring the sealing of the chamber 2.

[0035] Reference Figure 3 and Figure 4 A flip table 143 is bolted to both sides of the flip door 14, and the two flip tables 143 are symmetrically arranged. Each flip table 143 is provided with a plurality of operating tables 3. In the present embodiment, two operating tables 3 are provided on each flip table 143, and the two operating tables 3 are respectively located at both ends of the width direction of the flip table 143. A plurality of first driving members 6 are also provided on the flip table 143, and the number and position of the first driving members 6 correspond to the number and position of the operating tables 3. When the flip door 14 blocks the discharge port 111, the flip table 143 on one side is located in the chamber 2, that is, the operating table 3 on the corresponding side is also located in the chamber 2.

[0036] Reference Figure 3 and Figure 4 In this embodiment, the first driving member 6 is preferably configured as a driving motor, and the output shaft of the driving motor is coaxially fixed with the operating table 3; when in use, the flexible wheel is fixed on the operating table 3, and the operating table 3 is driven to rotate around its own axis by the rotation of the output shaft of the driving motor, so as to adjust the placement angle of the flexible wheel, and the operating table 3 located outside the chamber 2 and the operating table 3 located inside the chamber 2 can be replaced by adjusting the rotation of the flip door 14, so that it is convenient for users to replace the flexible wheel to be processed in the chamber 2.

[0037] Reference Figure 3 and Figure 5 A spray gun 4 is arranged in the chamber 2, and the spray port of the spray gun 4 is arranged toward the operating table 3, and the number of the spray guns 4 is the same as the number of the operating tables 3 on a rotating table. In this embodiment, the number of the spray guns 4 is two, and the two spray guns 4 correspond to one operating table 3 respectively. A three-dimensional driving module 8 is also arranged on the first box body 11, and the three-dimensional driving module 8 is used to drive the spray gun 4 to move.

[0038] Reference Figure 5 and Figure 6 The three-dimensional driving module 8 includes a first fixed seat 81, a first slide 82, a second driving member 83, a second fixed seat 84, a second slide 85, a third driving member 86, a mounting seat 87, a third fixed seat 88 and a driving assembly 89, wherein the first fixed seat 81 is fixed to the first box body 11 by bolts, the first slide 82 slides on the first fixed seat 81, and the sliding direction of the first slide 82 is horizontal, the second driving member 83 is fixed to the first fixed seat 81 by bolts, and in this embodiment, the second driving member 83 is preferably set as a linear motor, the first slide 82 is bolted to the slider on the linear motor, and the first slide 82 is driven to slide by the sliding of the slider on the linear motor when in use.

[0039] Reference Figure 6 The second fixed seat 84 is fixed to the first slide 82 by bolts, the second slide 85 slides on the second fixed seat 84, and the sliding direction of the second slide 85 is the vertical direction, the third driving member 86 is fixed to the second fixed seat 84 by bolts. In this embodiment, the third driving member 86 is preferably set as a linear motor, and the second slide 85 is bolted to the slider on the linear motor. When in use, the second slide 85 is driven to slide by the sliding of the slider on the linear motor. The mounting seat 87 is bolted to the second slide 85, and the third fixed seat 88 rotates on the mounting seat 87. The spray gun 4 is fixedly mounted on the third fixed seat 88.

[0040] Reference Figure 6 and Figure 7The driving assembly 89 is arranged on the mounting seat 87. The driving assembly 89 is used to drive the third fixed seat 88 to rotate. The driving assembly 89 is composed of a first rotating shaft 891, a fourth driving member 892, a second rotating shaft 893 and a reducer 894. The first rotating shaft 891 rotates on the mounting seat 87, and the fourth driving member 892 is installed on the mounting seat 87. In this embodiment, the fourth driving member 892 is preferably configured as a driving motor, and the output shaft of the driving motor is coaxially fixedly connected to the first rotating shaft 891. The reducer 894 is fixed on the mounting seat 87 away from one end of the fourth driving member 892, and the input shaft of the reducer 894 is coaxially fixedly connected to the first rotating shaft 891, and the output shaft of the reducer 894 is coaxially fixedly connected to the second rotating shaft 893. The third fixed seat 88 is fixedly connected to the second rotating shaft 893. At the same time, a protective shell 895 is also provided around the reducer 894. In this embodiment, the protective shell 895 is made of natural rubber.

[0041] Reference Figure 6 and Figure 7 The output shaft of the fourth driving member 892 rotates to drive the first rotating shaft 891 to rotate, and then through the action of the reducer 894, the first rotating shaft 891 rotates to synchronously drive the second rotating shaft 893 to rotate, so as to achieve the conversion of the rotation direction, and then the third fixed seat 88 can be driven to rotate by the second rotating shaft 893 to adjust the direction of the spray gun 4, and then the second driving member 83 and the third driving member 86 are matched to make the spray gun 4 slide in the horizontal direction and the vertical direction, so as to achieve the purpose of shot peening processing at different angles of the flexible wheel; when in use, the spray gun 4 is driven to move by the three-dimensional driving module 8, thereby ensuring that the distance accuracy between the spray gun 4 and the shot peening surface of the flexible wheel is maintained within a range of less than or equal to 1 mm, thereby ensuring the residual stress implantation effect on the surface of the flexible wheel.

[0042] Reference Figure 5 and Figure 6 A fixing frame 9 is fixed to the bottom of the first fixing seat 81 by bolts, and an inverted cone-shaped protective cover 10 is fixed to the bottom of the fixing frame 9. In the present embodiment, the protective cover 10 is made of soft cloth material. In the present embodiment, the first fixing seat 81, the first slide seat 82, the second driving member 83, the second fixing seat 84, the second slide seat 85, the third driving member 86, the mounting seat 87 and the third fixing seat 88 are all located on the first box body 11, wherein the lower end of the first rotating shaft 891 passes through the top wall of the first box body 11 and the protective cover 10 and then extends into the chamber 2.

[0043] Reference Figure 5 and Figure 6In order to prevent external dust from entering the chamber 2 through the connecting gap between the three-dimensional driving module 8 and the first box body 11, a corrugated sleeve 50 is provided on the second driving member 83 and the third driving member 86 to prevent a large gap from appearing between the first slide 82 or the second slide 85 and the first box body 11 during the sliding process of the first slide 82 or the second slide 85. At the same time, since the mounting seat 87 will slide during the processing, a follow-up sealing structure 20 is provided between the mounting seat 87 and the first box body 11.

[0044] Reference Figure 5 and Figure 8 The follow-up sealing structure 20 includes a guide plate 201, a sealing plate 202, a PE plate 203 and a PE fixing plate 204. Two guide plates 201 are provided, and the two guide plates 201 are relatively fixed on the first box body 11. The PE plate 203 slides between the two guide plates 201. The PE fixing plate 204 is fixed on the PE plate 203. The PE fixing plate 204 is provided with a through hole for penetrating the mounting seat 87. In this embodiment, the sealing plate 202 is made of silicone material, and the sealing plate 202 is located between the PE fixing plate 204 and the PE plate 203.

[0045] Reference Figure 3 and Fig. 9 A circulating filtering and screening module 5 is arranged in the second box body 12, and the circulating filtering and screening module 5 is used to recover and filter the ejected pellets, and then resupply the pellets to the spray gun 4. The circulating filtering and screening module 5 consists of five parts: a silo 51, a vacuum loader 52, a recovery bin 53, a screening component 54 and a feeding pipeline. The silo 51, the vacuum loader 52, the recovery bin 53 and the screening component 54 are connected through a feeding pipeline, wherein the inlet end of the silo 51 is connected to the outlet end of the vacuum loader 52, and the outlet end of the silo 51 is connected to the spray gun 4. A collecting port is opened in the first box body 11, and the collecting port connects the chamber 2 with the recovery bin 53. The recovery bin 53 is used to recover the ejected pellets, and the outlet end of the recovery bin 53 is connected to the vacuum loader 52.

[0046] Reference Fig. 9 and Fig.10 The screening component 54 is used to screen the pills sucked from the recovery bin 53. The screening component 54 includes an ultrasonic rotary vibrating screen 541 and a waste collection bucket 542. In this embodiment, three layers of screens are arranged from top to bottom in the ultrasonic rotary vibrating screen 541, and the apertures of the filter holes on the three layers of screens decrease successively. Two first outlets and one second outlet are also opened on the ultrasonic rotary vibrating screen 541. The two first outlets are respectively connected to the spaces corresponding to the first and third layers of screens, and the other ends of the two first outlets are connected to the waste collection bucket 542.

[0047] Reference Fig. 9 and Fig.10One end of the second outlet is connected to the space corresponding to the second layer of screen, and the other end of the second outlet is connected to the silo 51. When in use, impurities with larger particles enter the waste collection bucket 542 from the first outlet of the upper layer, and impurities with smaller particles and intact pills fall to the second layer of screen. Pills that meet the specified diameter size enter the silo 51 from the second outlet, and impurities with too small diameters and dust-like pills fall to the third layer of screen, and are finally discharged into the waste collection bucket 542 along the first outlet of the third layer, thereby achieving the purpose of filtering and recycling the recovered pills.

[0048] Reference Fig. 9 and Fig.10 The vacuum feeder 52 is composed of a vacuum feeder 521 and a vortex fan 522. The inlet end of the vacuum feeder 521 is connected to the recovery bin 53, and the outlet end of the vacuum feeder 521 is connected to the ultrasonic rotary vibrating screen 541. The vortex fan 522 is used to ensure that the vacuum feeder 521 is always in a negative pressure state. When in use, the vortex fan 522 is started to make the vacuum feeder 521 in a negative pressure state, so that the pellets in the bin 51 are transported to the spray gun 4 along the feed pipeline, and fall into the chamber 2 after being sprayed from the spray gun 4, and then fall into the recovery bin 53, and then the pellets and impurity mixture in the recovery bin 53 enter the vacuum feeder 521 along the feed pipeline, and then after being screened by the ultrasonic rotary vibrating screen 541, the impurities flow to the waste collection bucket 542, and the pellets are re-entered into the bin 51, thereby completing the recycling of the pellets.

[0049] Reference Figure 1 and Fig.11 An electrical control module 7 is provided on the guardrail 13. The electrical control module 7 is used to supply power or air to the three-dimensional driving module 8 and the circulating filtering and screening module 5. The electrical control module 7 includes an electrical box 71, a power supply line and a ventilation pipeline 72. When in use, the electrical control module 7 is used to supply power or air to the power supply line or the ventilation pipeline 72, so as to control the operation or pause of the shot peening machine.

[0050] Reference Figure 2 and Fig.12 At the same time, in order to facilitate the users to maintain the structure in the chamber 2, an inspection port 112 is also opened on the first box body 11, and an inspection door 15 is hinged on the first box body 11. The inspection door 15 is used to block the inspection port 112. At the same time, in order to ensure the sealing inside the chamber 2, a second sealing structure is provided on the inspection door 15. The second sealing structure is a sealing ring, which is fixed to the inner side of the inspection door 15. When the inspection door 15 is rotated to block the inspection port 112, the sealing ring is located between the inspection door 15 and the first box body 11. In this way, the connecting gap between the inspection door 15 and the first box body 11 can be sealed by the sealing ring, thereby ensuring the sealing inside the chamber 2.

[0051] Reference Figure 2 and Fig.12 An observation window 151 is also provided on the inspection door 15 so that the staff can observe the situation in the chamber 2 without opening the inspection door 15. At the same time, a light bar 153 is also installed on the inspection door 15 to facilitate the staff's observation.

[0052] Reference Figure 2 and Fig.13 A gas replenishment port 16 is provided at the upper end of the first box body 11, and a plurality of inclined guide plates 161 are provided on the inner wall of the gas replenishment port 16. The plurality of inclined guide plates 161 are distributed in a maze-like manner. A foreign matter isolation perforated plate 162 is also provided at the opening of the gas replenishment port 16, and a plurality of vents are provided on the foreign matter isolation perforated plate 162. When in use, the circulating filtration and screening module 5 ensures that the chamber 2 is in a negative pressure state, and gas is replenished into the chamber 2 through the gas replenishment port 16. The maze-like structure provided at the gas replenishment port 16 effectively prevents the leakage of pills and dust caused by the leakage of a small amount of gas. The foreign matter isolation perforated plate 162 prevents larger foreign matters from entering the gas replenishment port 16. At the same time, the vents on the foreign matter isolation perforated plate 162 do not affect the passage of gas.

[0053] Reference Figure 1 and Figure 2 In order to facilitate the transportation of the entire shot blasting machine, a lifting ring 30 for lifting and a forklift hole 40 for forklift transportation are also provided on the first box body 11.

[0054] The implementation principle of the embodiment of the present application is as follows: when in use, the staff fixes the flexible wheel to be processed on the operating table 3, and then drives the flip door 14 to flip through the fifth driving member 142, so as to transfer the flexible wheel outside the chamber 2 to the chamber 2, and then inflate the sealing airbag through the electrical control module 7 to expand the sealing airbag, thereby sealing the gap between the flip door 14 and the first box body 11, and finally start the vacuum feeder 52 to make the shot flow to the spray gun 4, which is sprayed out by the spray gun 4 and hits the flexible wheel. At the same time, the spray gun 4 is controlled to move through the three-dimensional control module, so that the spray gun 4 performs shot peening on the flexible wheel from different positions and angles, and then cooperates with the operating table to 3 rotates itself, thereby ensuring the effect of residual stress implantation on the surface of the flexible wheel after processing. In addition, under the action of the circulating filtering and screening module 5, the ejected shot materials are circulated back to the silo 51 for subsequent use, and the entrained impurities are screened into the waste collection bucket 542; when the flexible wheel processing is completed, the fifth driving member 142 drives the flip door 14 to flip again, so that the processed flexible wheel is transferred to the outside of the chamber 2, and the unprocessed flexible wheel outside the chamber 2 is transferred into the chamber 2 for processing. The overall operation is simple and convenient, which improves the processing efficiency, ensures the effect of residual stress implantation on the surface of the flexible wheel, and also reduces the leakage of the particle shot materials in the form of dust.

[0055] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A particle shot peening machine for harmonic flexible wheel surface strengthening, characterized in that: The invention comprises a machine body (1), wherein a sealed chamber (2) is arranged on the machine body (1), an operating table (3) for placing a flexible wheel to be processed is rotatably arranged in the chamber (2), a spray gun (4), a circulating filtering and screening module (5) for recovering and filtering the shot, and a first driving member (6) for driving the operating table (3) to rotate are arranged in the chamber (2), and an electrical control module (7) for supplying air and electricity and a three-dimensional driving module (8) for driving the spray gun (4) to move are also arranged on the machine body (1).

2. A microparticle shot peening machine for harmonic flexible wheel surface strengthening according to claim 1, characterized in that: The three-dimensional driving module (8) comprises a first fixed seat (81) fixed on the machine body (1), a first slide seat (82) sliding on the first fixed seat (81) in a horizontal direction, a second driving member (83) for driving the first slide seat (82) to slide, a second fixed seat (84) fixed on the first slide seat (82), a second slide seat (85) sliding on the second fixed seat (84) in a vertical direction, a third driving member (86) for driving the second slide seat (85) to slide, a mounting seat (87) fixed on the second slide seat (85), a third fixed seat (88) rotating on the mounting seat (87), and a driving assembly (89) for driving the third fixed seat (88) to rotate, and the spray gun (4) is mounted on the third fixed seat (88).

3. A microparticle shot peening machine for harmonic flexible wheel surface strengthening according to claim 2, characterized in that: The driving assembly (89) comprises a first rotating shaft (891) rotating on the mounting seat (87), a fourth driving member (892) mounted on the mounting seat (87) for driving the first rotating shaft (891) to rotate, a second rotating shaft (893) rotating on the mounting seat (87), and a reducer (894) arranged between the first rotating shaft (891) and the second rotating shaft (893), wherein the axis of the first rotating shaft (891) and the axis of the second rotating shaft (893) are arranged vertically, and the first rotating shaft (891) is coaxially fixedly connected to the input shaft of the reducer (894), the second rotating shaft (893) is coaxially fixedly connected to the output shaft of the reducer (894), and the third fixed seat (88) is fixed on the second rotating shaft (893).

4. The microparticle shot peening machine for harmonic flexible wheel surface strengthening according to claim 1, characterized in that: The circulating filtering and screening module (5) comprises a silo (51) for supplying material to the spray gun (4), a vacuum feeder (52) for supplying material to the silo (51), a recovery silo (53) for recovering the pellets, and a screening assembly (54) for filtering and screening the pellets. The screening assembly (54) is located between the silo (51) and the vacuum feeder (52). The silo (51), the vacuum feeder (52), the recovery silo (53) and the screening assembly (54) are connected via a material delivery pipeline. The opening of the recovery silo (53) is connected to the interior of the chamber (2).

5. The microparticle shot peening machine for harmonic flexible wheel surface strengthening according to claim 4, characterized in that: The screening component (54) comprises an ultrasonic rotary vibrating screen (541) and a waste collection bucket (542); the ultrasonic rotary vibrating screen (541) is provided with a first outlet for discharging waste and a second outlet for discharging pellets; the first outlet is connected to the waste collection bucket (542), and the second outlet is connected to the silo (51).

6. The microparticle shot peening machine for harmonic flexible wheel surface strengthening according to claim 1, characterized in that: The machine body (1) comprises a first box body (11), a second box body (12) fixed to the first box body (11), and a guardrail (13) fixed to the first box body (11); the chamber (2) is formed by enclosing the first box body (11) and the second box body (12); a discharge port (111) is provided on the first box body (11); a flip door (14) is rotatably connected to the first box body (11) for blocking the discharge port (111); the flip door (14) is provided on the first box body (11) for blocking the discharge port (111); The revolving door (14) is provided with a first sealing structure (141), the first box body (11) is provided with a fifth driving member (142) for driving the reversing door (14) to rotate, the reversing door (14) is fixedly connected with a reversing platform (143), the operating platform (3) and the first driving member (6) are both arranged on the reversing platform (143), and the guardrail (13) is provided with an avoidance groove (131) for avoiding the rotation of the reversing platform (143).

7. The microparticle shot peening machine for harmonic flexible wheel surface strengthening according to claim 6, characterized in that: The first sealing structure (141) comprises a sealing airbag arranged on the peripheral side of the flip door (14); a placement groove (144) is provided on the peripheral side of the flip door (14); and the sealing airbag is located in the placement groove (144).

8. The microparticle shot peening machine for harmonic flexible wheel surface strengthening according to claim 6, characterized in that: Two of the flip tables (143) are provided, and the two flip tables (143) are symmetrically arranged on both sides of the flip door (14); a plurality of the operating tables (3) are provided, and a portion of the operating tables (3) is provided on one of the flip tables (143), and another portion of the operating tables (3) is provided on another of the flip tables (143); and a plurality of the first driving members (6) are provided corresponding to the operating tables (3).

9. The microparticle shot peening machine for harmonic flexible wheel surface strengthening according to claim 6, characterized in that: The first box body (11) is provided with an inspection opening (112), the first box body (11) is provided with an inspection door (15) for blocking the inspection opening (112), and the inspection door (15) is provided with a second sealing structure for sealing a connection gap between the inspection door (15) and the first box body (11).

10. The microparticle shot peening machine for harmonic flexible wheel surface strengthening according to claim 6, characterized in that: The first box body (11) is provided with an air supply port (16), the air supply port (16) is communicated with the interior of the chamber (2), and a foreign matter isolation punching plate (162) is provided at the air supply port (16).

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