Shot blasting robot for round pipe connector

Abstract

The utility model relates to the technical field of workpiece surface treatment, in particular to a shot blasting robot used for a round pipe connector, which comprises a shot blasting device, a walking device and a sealing device, a leakage-proof mechanism used for preventing shots from splashing is arranged in the shot blasting device, the leakage-proof mechanism comprises a group of shot brushing rollers arranged in parallel, and the shot brushing rollers are connected with the walking device. The shot blasting device comprises a shot brushing roller, a material pressing roller located above the shot brushing roller and a rubber curtain correspondingly arranged below the shot brushing roller, the two ends of the shot brushing roller are connected with brush roller mounting plates, the two ends of the material pressing roller are connected with material pressing bearing mounting plates, and the brush roller mounting plates and the material pressing bearing mounting plates are movably connected to the inner wall of the shot blasting device. Hollowed-out holes are formed in the rubber curtain at equal intervals, and one side of each hollowed-out hole is communicated with a strip-shaped groove. The shot blasting robot disclosed by the utility model can prevent a large number of shots from splashing and leaking during working, so that the cost is reduced, the working efficiency is improved, the shot blasting path can be recorded in real time, and the shot blasting efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of workpiece surface treatment, in particular to a shot blasting robot for circular pipe interfaces. Background Technique

[0002] Before spray painting operations, workpieces are usually subjected to shot blasting to improve the spray painting quality. Shot blasting is typically carried out by a shot blasting device that impacts shot pellets onto the surface of the workpiece, creating a microscopic uneven structure on the workpiece surface and achieving a roughness of more than 40um. This helps to increase the surface area for the paint to adhere to the workpiece, thereby enhancing the paint adhesion. At the same time, during the shot blasting process, the surface of the workpiece impacted by the shot pellets needs to be sealed to prevent dust and debris from splashing out during the impact, which could pose a safety hazard.

[0003] Currently, the patent with the publication number CN116475952A on the market discloses a shot blasting device for arc surface treatment, which mainly includes a shot blasting device, a traveling mechanism, and a floating seal mechanism. The shot blasting device is provided with a shot blasting port that communicates the inside and outside of the shot blasting device. The traveling mechanism is connected to the shot blasting device and is used to carry the shot blasting device. One end of the floating seal mechanism is floatingly connected to the shot blasting port, and the other end of the floating seal mechanism abuts against the arc surface of the workpiece: The traveling mechanism drives the shot blasting device to travel along the arc surface of the workpiece, facilitating the shot blasting device to perform shot blasting on the arc surface of the workpiece. At the same time, the floating seal mechanism moves with the shot blasting device and floats according to the curvature of the arc surface, enabling the floating seal mechanism to always abut against the arc surface of the workpiece and allowing the floating seal mechanism to perform floating sealing on the arc surface of the workpiece impacted by the shot pellets, thereby realizing the shot blasting device to perform shot blasting on the arc surface of the workpiece. However, when this technical solution is used for shot blasting circular pipe interfaces, the following defects still exist:

[0004] 1) During the shot blasting process of the shot blasting device, due to the small size of the shot pellets and the large impact force during shot blasting, a large amount of shot pellets leak out through the gaps between the equipment or at the shot blasting discharge port and splash outside the shot blasting device. This not only causes waste of shot pellets but also affects the safety of workers, increasing production costs and posing a significant safety hazard.

[0005] 2) When the shot blasting device processes and shot blasts the workpiece, its processing path cannot be effectively identified and recorded, resulting in situations where the shot blasting device performs repeated shot blasting or misses shot blasting. This not only affects the shot blasting effect but also reduces production efficiency. Content of the Utility Model

[0006] To solve the technical defects presented in the above-mentioned background art, the purpose of the present utility model is to provide a shot blasting robot for circular pipe joints, which can avoid a large amount of shot from splashing and leaking during operation, thereby reducing costs, improving work efficiency, and being able to record the shot blasting path in real time to enhance the shot blasting efficiency.

[0007] To achieve the above purpose, the present utility model adopts the following technical solutions:

[0008] A shot blasting robot for circular pipe joints includes a shot blasting device for shooting shot at the surface of the workpiece, a traveling device for carrying and driving the shot blasting device to move along the surface of the workpiece, and a sealing device for floatingly sealing the surface of the workpiece impacted by the shot. An anti-leakage mechanism for preventing shot from splashing is provided inside the shot blasting device. The anti-leakage mechanism includes a group of brush shot rollers arranged in parallel, a pressure roller located above the brush shot rollers, and a rubber curtain correspondingly arranged below the brush shot rollers. Both ends of the brush shot rollers are connected with brush roller mounting plates, and both ends of the pressure roller are connected with pressure bearing mounting plates. The brush roller mounting plates and the pressure bearing mounting plates are both movably connected to the inner wall of the shot blasting device; the rubber curtain is equidistantly provided with hollow holes, and a strip-shaped groove is communicated on one side of the hollow holes; one end of the sealing device is floatingly connected to the bottom end of the shot blasting device, and the other end abuts against the outer surface of the workpiece, and a detection mechanism for detecting the shot blasting path is provided on the sealing device.

[0009] Preferably, the detection mechanism includes a position sensor, a point position recorder, and a microprocessor. A plurality of the position sensors are provided, and the plurality of position sensors are connected to the shot blasting device. The point position recorders are equidistantly arranged around the bottom end of the sealing device, and the point position recorders are electrically connected to the microprocessor. The microprocessor is built into the shot blasting device, and the microprocessor is electrically connected to the position sensors.

[0010] Preferably, the shot blasting device includes a shot storage chamber for storing shot, a shot blasting channel and a shot return channel communicated with the shot storage chamber. The top end of the shot storage chamber is communicated with a dust collection chamber. A filter screen is provided at the connection between the dust collection chamber and the shot storage chamber, and a dust discharge port is provided on one side of the dust collection chamber; a driving component for driving the shot to be thrown out is connected to the shot blasting channel, and a blanking valve for controlling the discharge of shot is connected to the end of the shot blasting channel communicated with the shot storage chamber; one end of the shot return channel is communicated with the shot storage chamber, and the other end intersects with the shot blasting channel to form a shot blasting discharge port, and the shot return channel and the shot blasting channel are connected by a flange.

[0011] Preferably, a feeding port for adding shot is further provided on one side of the shot storage chamber, and a cover plate is hermetically connected to the feeding port.

[0012] Preferably, the driving assembly includes a driving motor, a shot blasting wheel and a coupling, the driving motor is fixed to one side of the shot blasting channel, and the output end of the driving motor is linked to the shot blasting wheel and the walking device through the coupling, the shot blasting wheel is rotatably connected in the shot blasting channel, and the shot blasting wheel is provided with a plurality of blower blades for throwing projectiles.

[0013] Preferably, the walking device is fixedly connected to both ends of the shot blasting device, and the walking device includes a connecting frame, a lifting bracket and a walking wheel, one end of the connecting frame is fixedly connected to the shot blasting device, and the other end is detachably connected to the lifting bracket, the lifting bracket is perpendicular to the connecting frame, and the lifting frame is used to adjust the position of the walking wheel; the walking wheel is rotatably connected to the lifting bracket, and the surface of the walking wheel is a magnetic structure.

[0014] Preferably, the sealing device includes an inner sealing component and an outer sealing component, the inner sealing component and the outer sealing component are respectively arranged around the shot blasting discharge port, and the inner sealing component is wrapped around the inner side of the outer sealing component, and a wire brush layer is also arranged at the edges around the outer sealing component, and the wire brush layer is in close contact with the workpiece.

[0015] Preferably, the inner layer sealing assembly includes a surrounding piece, an inner layer sealing piece and an elastic piece, the surrounding piece and the inner layer sealing piece are arranged on the outer periphery of the shot blasting discharge port, and the inner layer sealing piece protrudes from the surrounding piece along its width direction; there are multiple elastic pieces, and the multiple elastic pieces are arranged between the inner layer sealing piece and the surrounding piece, and the elastic pieces are spaced apart with the center line of the surrounding piece as the axis.

[0016] Preferably, the outer sealing assembly includes a sleeve member that is sleeved on the outer periphery of the inner sealing member and connected to the shot blasting device, and an outer sealing member that is connected to the side of the inner sealing member facing away from the inner sealing member. The outer sealing member protrudes from the surrounding member and the sleeve member along its width direction, and the outer sealing member is used to flexibly support the outer surface of the workpiece impacted by the projectile.

[0017] In summary, the beneficial effects of the utility model are:

[0018] 1. The shot blasting robot of the utility model is provided with a leak-proof mechanism in the shot blasting device, and uses a rubber curtain to block the projectiles, thereby effectively preventing the projectiles from splashing out of the material port during the shot blasting process, thereby realizing the leak-proof function of the shot blasting device; at the same time, the shot brush roller and the pressing roller can press and recover the projectiles splashed after shot blasting, so that they can be repeatedly recycled, thereby reducing the waste of projectiles and reducing the cost of use. On the other hand, it can also eliminate the safety hazards caused by the splashing of projectiles and improve the safety of the shot blasting robot.

[0019] 2. The utility model sets a detection mechanism on the sealing mechanism, and uses a position sensor to monitor the position of the shot blasting robot on the surface of the workpiece in real time. A point position recorder records the point positions of the shot blasting device on the surface of the workpiece, and a microprocessor processes the information collected by the position sensor and the point position recorder to simulate the shot blasting path of the shot blasting robot, thereby effectively planning the most suitable and efficient shot blasting path, effectively avoiding the situations of repeated shot blasting and missed shot blasting of the shot blasting robot, and further improving the working efficiency of the shot blasting robot. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 FIG. is a schematic structural diagram of the shot blasting robot for circular pipe joints of the present utility model;

[0021] Figure 2 FIG. is a schematic structural diagram of another view of the shot blasting robot for circular pipe joints of the present utility model;

[0022] Figure 3 FIG. is a top view of the shot blasting robot for circular pipe joints of the present utility model;

[0023] Figure 4 is Figure 3 the sectional view taken along line A-A in FIG.

[0024] Figure 5 FIG. is a schematic structural diagram of the leak-proof mechanism in the present utility model.

[0025] Explanation of the reference numerals in the drawings:

[0026] 1. Shot blasting device; 11. Shot storage chamber; 111. Feeding port; 112. Sealing cover plate; 12. Shot blasting channel; 13. Return shot channel; 14. Shot blasting discharge port; 2. Traveling device; 21. Connecting frame; 22. Lifting bracket; 23. Traveling wheel; 3. Sealing device; 31. Inner sealing assembly; 311. Enclosing member; 312. Inner sealing member; 313. Elastic member; 32. Outer sealing assembly; 321. Sleeve member; 322. Outer sealing member; 33. Wire brush layer; 4. Leak-proof mechanism; 41. Brush shot roller; 42. Pressing roller; 43. Rubber curtain; 431. Hollow hole; 432. Strip-shaped groove; 44. Brush roller mounting plate; 45. Pressing bearing mounting plate; 5. Detection mechanism; 51. Position sensor; 52. Point position recorder; 53. Microprocessor; 6. Dust collection chamber; 7. Filter screen; 8. Dust discharge port; 9. Driving assembly; 91. Driving motor; 92. Shot blasting runner; 921. Drum fan blade; 93. Coupling; 10. Discharge valve. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model belong to the scope of protection of the present utility model.

[0028] Those skilled in the art should understand that in the disclosure of the present utility model, the orientation or positional relationship indicated by terms such as "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limiting the present utility model.

[0029] In the description of the present utility model, if there are words such as "a number of" for description, its meaning is one or more, and the meaning of multiple is two or more. Understandings such as greater than, less than, exceeding, etc. do not include the present number, and understandings such as above, below, within, etc. include the present number. If there is a description of first, second, third, etc., it is only for the purpose of distinguishing technical features and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0030] The following will further describe in detail an embodiment of a shot blasting robot for a circular pipe interface of the present utility model with reference to the attached Figures 1-5 drawings.

[0031] A shot blasting robot for a circular pipe interface, as Figure 1 、 2As shown in FIGS. 0 and 5, it includes a shot blasting device 1 for a projectile used for projection to impact the surface of a workpiece, a traveling device 2 for carrying and driving the shot blasting device 1 to move along the surface of the workpiece, and a sealing device 3 for floatingly sealing the surface of the workpiece impacted by the shot. An anti-leakage mechanism 4 for preventing the shot from splashing is arranged in the shot blasting device 1. The anti-leakage mechanism 4 includes a group of brush shot rollers 41 arranged in parallel, a pressure roller 42 located above the brush shot rollers 41, and a rubber curtain 43 correspondingly arranged below the brush shot rollers 41. Both ends of the brush shot rollers 41 are connected with brush roller mounting plates 44, and both ends of the pressure roller 42 are connected with pressure bearing mounting plates 45. The brush roller mounting plates 44 and the pressure bearing mounting plates 45 are both movably connected to the inner wall of the shot blasting device 1; equally spaced hollow holes 431 are opened on the rubber curtain 43, and a strip-shaped groove 432 is communicated on one side of the hollow hole 431; one end of the sealing device 3 is floatingly connected to the bottom end of the shot blasting device 1, and the other end abuts against the outer surface of the workpiece, and a detection mechanism 5 for detecting the shot blasting path is arranged on the sealing device 3.

[0032] Specifically, the process of shot blasting by the shot blasting robot is as follows: The traveling mechanism drives the shot blasting device 1 to travel along the arc surface of the workpiece, so that the shot blasting device 1 can perform shot blasting treatment on the arc surface of the workpiece. At the same time, the sealing mechanism moves along with the shot blasting device 1 and floats according to the radian of the arc surface, so that the sealing mechanism always abuts against the arc surface of the workpiece, and the sealing mechanism performs floating sealing on the arc surface of the workpiece impacted by the shot, so as to realize the shot blasting treatment of the arc surface of the workpiece by the shot blasting device 1. When shot blasting, the anti-leakage mechanism 4 can block the shot and prevent the shot from splashing out from the material opening or gap of the shot blasting device 1. The specific blocking structure is that when the shot enters or exits the shot blasting device 1 and passes through the anti-leakage mechanism 4, the shot is first stored in the shot blasting device 1 under the blockage of the rubber curtain 43. The size of the hollow holes opened on the rubber curtain 43 is just large enough to allow a single shot to pass through, and the strip-shaped groove 432 communicated on one side of the hollow holes can pass through waste chips, dust, etc. generated during the processing. Further, there are two brush shot rollers 41 and pressure rollers 42 respectively, and they are both arranged in parallel. When the shot is loaded or unloaded, the brush shot rollers 41 can brush off the shot attached to the inner wall of the shot blasting device 1, and at the same time, use the pressure rollers 42 to press and store the shot uniformly, so as to prevent the shot from splashing out from the material opening during the shot blasting process, and realize the anti-leakage function of the shot blasting device 1; at the same time, the brush shot rollers 41 and the pressure rollers 42 can press and recycle the shot splashed after shot blasting, so that it can be recycled repeatedly, thereby reducing the waste of shot, reducing the use cost, and on the other hand, eliminating the safety hazards caused by shot splashing and improving the safety of the shot blasting robot.

[0033] In this embodiment, the detection mechanism 5 includes a position sensor 51, a point position recorder 52, and a microprocessor 53 (not shown in the figure). A plurality of position sensors 51 are provided and are connected to the shot blasting device 1. The point position recorder 52 is arranged equidistantly around the bottom end of the sealing device 3, and the point position recorder 52 is electrically connected to the microprocessor 53 (not shown in the figure) through an electrical signal. The microprocessor 53 (not shown in the figure) is built into the shot blasting device 1 and is electrically connected to the position sensor 51.

[0034] Specifically, when the position sensor 51 is working, it collects the position processed by the shot blasting device 1 through the emitted radar and synchronously shares the collected information to the microprocessor 53 (not shown in the figure). At the same time, as the traveling device 2 travels, the point position recorder 52 records the point position information of the shot blasting process of the shot blasting device 1 in real time. Finally, the microprocessor 53 (not shown in the figure) processes the collected information to simulate the traveling path during shot blasting, thereby avoiding the situation of repeated shot blasting or missed shot blasting of the shot blasting device 1, which not only improves the shot blasting effect but also improves production efficiency.

[0035] In this embodiment, as Figure 3 , 4 shown, the shot blasting device 1 includes a shot storage chamber 11 for storing shot, a shot blasting channel 12 and a shot return channel 13 connected to the shot storage chamber 11. The top end of the shot storage chamber 11 is connected to a dust collection chamber 6. A filter screen 7 is provided at the connection between the dust collection chamber 6 and the shot storage chamber 11, and a dust discharge port 8 is provided on one side of the dust collection chamber 6; a driving assembly 9 for driving the shot to be ejected is connected to the shot blasting channel 12, and a blanking valve 10 for controlling the discharge of the shot is connected to the end of the shot blasting channel 12 communicating with the shot storage chamber 11; one end of the shot return channel 13 is connected to the shot storage chamber 11, and the other end intersects with the shot blasting channel 12 to form a shot blasting discharge port 14, and the shot return channel 13 and the shot blasting channel 12 are connected by a flange.

[0036] Specifically, when the shot blasting device 1 performs shot blasting operation: First, the shot is ejected along the extension direction of the shot blasting channel 12 through the shot blasting driving assembly 9, so that the shot moves at high speed to the shot blasting discharge port 14 and impacts the arc surface of the workpiece, thereby realizing shot blasting treatment of the workpiece; Then, the shot impacting the arc surface of the workpiece is rebounded into the shot return channel 13 and moves along the extension direction of the shot return channel 13. The shot return channel 13 is also used to guide the shot back to the shot storage chamber 11. Finally, the shot in the shot storage chamber 11 is discharged into the shot blasting channel 12 through the blanking valve 10, so that the shot blasting driving assembly 9 can eject the shot again, thereby realizing cyclic impact on the workpiece and facilitating continuous shot blasting treatment of the workpiece.

[0037] It should be noted that a dust collection chamber 6 is provided at the top of the shot storage chamber 11. During shot blasting, the dust and chips sputtered when the shot impacts the arc surface of the workpiece are sucked into the dust collection chamber 6. To prevent the shot from being sucked into the dust collection chamber 6 together, a connecting filter screen 7 is provided between the dust collection chamber 6 and the shot storage chamber 11. The filter screen 7 can separate waste chips and dust from the shot and discharge the waste chips and dust from the dust discharge port 8, thus facilitating the cleaning of the workpiece after shot blasting. To make it more convenient to replenish the shot, a feeding port 111 (not shown in the figure) for adding shot is also provided on one side of the shot storage chamber 11, and a cover plate 112 is hermetically connected to the feeding port 111 (not shown in the figure). During feeding, the shot storage chamber 11 is fed through the cover plate 112, and at the same time, the leak-proof mechanism 4 components provided inside the shot storage chamber 11 can be repaired through the feeding port 111 (not shown in the figure).

[0038] In this embodiment, the driving assembly 9 includes a driving motor 91, a shot blasting runner 92, and a coupling 93. The driving motor 91 is fixed on one side of the shot blasting channel 12, and the output end of the driving motor 91 is respectively connected to the shot blasting runner 92 and the traveling device 2 through the coupling 93 in a linkage manner. The shot blasting runner 92 is rotatably connected inside the shot blasting channel 12, and a plurality of blower fan blades 921 for throwing the shot are provided on the shot blasting runner 92.

[0039] Specifically, when the shot is fed from the shot storage chamber 11, it enters the shot blasting runner 92 under the driving action of the feeding valve 10. The shot blasting runner 92 is driven to rotate by the driving motor 91, and the driving motor 91 synchronously controls the rotation of the traveling device 2 by using the coupling 93, so that the shot blasting robot can perform shot blasting work while moving. And because the blower fan blades 921 are provided on the surface of the shot blasting runner 92, and the blower fan blades 921 can drive the shot to move at high speed along the extension direction of the shot blasting channel 12 when rotating at high speed, which enables the shot to be accelerated and thrown out towards the shot blasting outlet 14, so that the surface of the round pipe interface can be shot blasted.

[0040] In this embodiment, the traveling device 2 is fixedly connected to both ends of the shot blasting device 1, and the traveling device 2 includes a connecting frame 21, a lifting bracket 22, and traveling wheels 23. One end of the connecting frame 21 is fixedly connected to the shot blasting device 1, and the other end is detachably connected to the lifting bracket 22. The lifting bracket 22 is perpendicular to the connecting frame 21, and the lifting bracket is used to adjust the position of the traveling wheels 23. The traveling wheels 23 are rotatably connected to the lifting bracket 22, and the surface of the traveling wheels 23 is a magnetic attraction structure.

[0041] Specifically, when assembling the traveling device 2, first fix one end of the connecting frame 21 to both sides of the shot blasting device 1 by screws or welding. At the same time, insert the lifting bracket 22 into the other end of the connecting frame 21 and lock it with a locking bolt. Finally, install the traveling wheels 23 on the lifting bracket 22, thereby realizing the rapid assembly of the traveling device 2, improving the assembly efficiency of the traveling device 2. At the same time, adjust the height of the traveling wheels 23 through the lifting bracket 22 so that the four groups of traveling devices 2 can adapt to the arc surfaces with different curvatures, thereby expanding the applicable range of shot blasting of the shot blasting robot.

[0042] In this embodiment, as Figure 2 shown, the sealing device 3 includes an inner sealing assembly 31 and an outer sealing assembly 32. The inner sealing assembly 31 and the outer sealing assembly are respectively arranged around the periphery of the shot blasting discharge port 14, and the inner sealing assembly 31 is wrapped inside the outer sealing assembly. A wire brush layer 33 is also arranged at the four peripheral edges of the outer sealing assembly 33, and the wire brush layer 33 is in close contact with the workpiece.

[0043] Specifically, the sealing device 3 seals the shot blasting discharge port 14 in a floating sealing manner, enabling it to move in the vertical direction according to the curvature of the arc surface of the circular pipe interface, so that the sealing device 3 always abuts against the arc surface of the workpiece. Moreover, the shot blasting device 1 can also be used for shot blasting treatment of a plane. Further, when the floating seal passes over the raised part on the circular pipe interface, such as a weld, the sealing device 3 can automatically move upward to adapt to the height of the raised part and seal the raised part. When the sealing device 3 passes over the sunken part on the circular pipe interface, the sealing device 3 automatically moves downward to adapt to the depth of the sunken part and seal the sunken part. And the wire brush layer 33 arranged around the sealing device 3 can clean the waste chips adhered to the sealing device 3 during the processing, playing a role of self-cleaning.

[0044] In this embodiment, the inner sealing assembly 31 includes an enclosing member 311, an inner sealing member 312, and an elastic member 313. The enclosing member 311 and the inner sealing member 312 are arranged on the outer periphery of the shot blasting discharge port 14, and the inner sealing member 312 protrudes from the enclosing member 311 along its width direction. A plurality of elastic members 313 are provided. The plurality of elastic members 313 are arranged between the inner sealing member 312 and the enclosing member 311, and the elastic members 313 are arranged at intervals with the center line of the enclosing member 311 as the axis.

[0045] Specifically, the elastic force released when the elastic member 313 expands and contracts in its width direction drives the inner seal member 312 to move, so that the inner seal member 312 can float according to the arc surface of the workpiece it abuts against, so that the inner seal member 312 can always abut against the arc surface of the workpiece, and further makes the sealing performance of the inner seal member 312 stable; at the same time, by arranging a plurality of elastic members 313 between the inner seal member 312 and the side wall of the shot blasting discharge port 14, the occupied space of the inner seal assembly 31 in the vertical direction is reduced, the spatial structure of the inner seal assembly 31 is optimized, and the gap formed between the inner seal member 312 and the side wall of the shot blasting discharge port 14 can accommodate and protect the elastic member 313; among them, the elastic member 313 can select a suitable elastic material according to actual production requirements, such as a spring, a compression spring, etc.

[0046] In this embodiment, the outer seal assembly 32 includes a sleeve member 321 sleeved on the outer periphery of the inner seal member 312 and connected to the shot blasting device 1, and an outer seal member 322 connected to the side of the inner seal member 312 facing away from the inner seal member 312. The outer seal member 322 protrudes along its width direction from the surrounding member 311 and the sleeve member 321, and the outer seal member 322 is used to flexibly abut against the outer surface of the workpiece impacted by the shot.

[0047] Specifically, the flexible abutment means that when the outer seal member 322 abuts against the workpiece, it flexibly abuts against the arc surface of the workpiece by elastically deforming; and by sleeving the outer seal member 322 on the outer periphery of the inner seal member 312, it can form a two-layer sealing structure for the shot blasting discharge port 14, and the two-layer sealing structure is organically combined, further improving the sealing effect of the shot blasting discharge port 14.

[0048] The working principle of the present utility model:

[0049] When processing the surface of the circular pipe interface, the shot blasting device 1 is driven by the traveling device 2 to move along the arc surface of the workpiece. Among them, the traveling wheels 23 on the traveling device 2 are magnetically attracted to the workpiece. When the shot blasting device 1 moves, the driving component 9 throws the shot along the direction in which the shot blasting channel 12 extends. The shot passes through the shot blasting discharge port 14 and impacts the arc surface of the workpiece. After the shot impacts the arc surface of the workpiece, it rebounds to the return shot channel 13 and enters the shot storage cavity 11 through the return spring channel. The leak-proof mechanism 4 in the shot storage cavity 11 can prevent the shot from splashing out from the gaps of the shot blasting device 1. Then, the shot in the shot storage cavity 11 enters the return shot channel 13 again after passing through the blanking valve 10, so as to facilitate the continuous operation of the shot blasting device 1. When the shot blasting device 1 is operating continuously, the detection mechanism 5 can detect the processing path of shot blasting in real time and make it travel along the optimal processing path. During the traveling process, the sealing mechanism performs floating sealing on the arc surface of the workpiece impacted by the shot to prevent the dust and debris generated by the shot impacting the arc surface of the workpiece from splashing out, thereby improving the safety of the shot blasting robot.

[0050] The embodiments of the specific implementation manners are all preferred embodiments of the present application, and do not limit the protection scope of the present application accordingly. The same components are denoted by the same reference numerals. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A shot blasting robot for circular pipe joints, comprising a shot blasting device for projectiles to impact the surface of the workpiece, a traveling device for carrying and driving the shot blasting device to move along the surface of the workpiece, and a sealing device for floating and sealing the surface of the workpiece impacted by the projectiles, characterized in that, A leak-proof mechanism for preventing the splashing of shot is provided inside the shot blasting device. The leak-proof mechanism includes a set of brush shot rollers arranged in parallel, a pressure roller located above the brush shot rollers, and a rubber curtain correspondingly arranged below the brush shot rollers. Both ends of the brush shot rollers are connected with brush roller mounting plates, and both ends of the pressure roller are connected with pressure bearing mounting plates. The brush roller mounting plates and the pressure bearing mounting plates are both movably connected to the inner wall of the shot blasting device. The rubber curtain is equidistantly provided with hollow holes, and a strip-shaped groove is communicated with one side of the hollow holes. One end of the sealing device is floatingly connected to the bottom end of the shot blasting device, and the other end abuts against the outer surface of the workpiece. And a detection mechanism for detecting the shot blasting path is provided on the sealing device.

2. The shot blasting robot for circular pipe joints according to claim 1, characterized in that, The detection mechanism includes a position sensor, a point position recorder and a microprocessor. A plurality of the position sensors are provided, and the plurality of position sensors are connected to the shot blasting device. The point position recorder is equidistantly arranged around the bottom end of the sealing device, and the point position recorder is electrically connected to the microprocessor. The microprocessor is built in the shot blasting device, and the microprocessor is electrically connected to the position sensor.

3. The shot blasting robot for circular pipe interfaces according to claim 1, wherein The shot blasting device includes a shot storage chamber for storing shot, a shot blasting channel and a shot return channel communicated with the shot storage chamber. The top end of the shot storage chamber is communicated with a dust collection chamber. A filter screen is provided at the connection between the dust collection chamber and the shot storage chamber, and a dust discharge port is provided on one side of the dust collection chamber. A driving component for driving the shot to be ejected is connected to the shot blasting channel, and a blanking valve for controlling the discharge of the shot is connected to the end of the shot blasting channel communicated with the shot storage chamber. One end of the shot return channel is communicated with the shot storage chamber, and the other end intersects with the shot blasting channel to form a shot blasting discharge port. And the shot return channel and the shot blasting channel are connected by a flange.

4. The shot blasting robot for circular pipe joints according to claim 3, characterized in that, A feeding port for adding shot is further provided on one side of the shot storage chamber, and a cover plate is hermetically connected to the feeding port.

5. The shot blasting robot for circular pipe joints according to claim 3, characterized in that, The driving component includes a driving motor, a shot blasting runner and a coupling. The driving motor is fixed on one side of the shot blasting channel, and the output end of the driving motor is respectively connected with the shot blasting runner and the traveling device in a linkage manner through the coupling. The shot blasting runner is rotatably connected in the shot blasting channel, and a plurality of drum fan blades for ejecting shot are provided on the shot blasting runner.

6. The shot blasting robot for circular pipe joints according to claim 1, wherein, The traveling device is fixedly connected to both ends of the shot blasting device. The traveling device includes a connecting frame, a lifting bracket and traveling wheels. One end of the connecting frame is fixedly connected to the shot blasting device, and the other end is detachably connected to the lifting bracket. The lifting bracket is perpendicular to the connecting frame, and the lifting bracket is used for adjusting the position of the traveling wheels. The traveling wheels are rotatably connected to the lifting bracket, and the surface of the traveling wheels is a magnetic adsorption structure.

7. The shot blasting robot for circular pipe joints according to claim 6, wherein, The sealing device includes an inner sealing component and an outer sealing component. The inner sealing component and the outer sealing component are respectively arranged around the periphery of the shot blasting discharge port, and the inner sealing component is wrapped inside the outer sealing component. A wire brush layer is further provided at the four peripheral edges of the outer sealing component, and the wire brush layer is in close contact with the workpiece.

8. The shot blasting robot for circular pipe joints according to claim 7, characterized in that, The inner layer sealing assembly includes a surrounding piece, an inner layer sealing piece and an elastic piece. The surrounding piece and the inner layer sealing piece are arranged on the outer periphery of the shot blasting discharge port, and the inner layer sealing piece protrudes from the surrounding piece along its width direction; there are multiple elastic pieces, and the multiple elastic pieces are arranged between the inner layer sealing piece and the surrounding piece, and the elastic pieces are arranged at intervals with the center line of the surrounding piece as the axis.

9. The shot blasting robot for circular pipe joints according to claim 7, characterized in that, The outer sealing component includes a sleeve part which is sleeved on the outer periphery of the inner sealing part and connected to the shot blasting device, and an outer sealing part which is connected to the inner sealing part on the side facing away from the inner sealing part. The outer sealing part protrudes from the surrounding part and the sleeve part along its width direction, and the outer sealing part is used to flexibly support the outer surface of the workpiece impacted by the projectile.

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