Multi-station fully automatic inner shot blasting system for steel cylinders

Abstract

A multi-station fully automatic inner shot blasting system for steel cylinders. The system comprises a bottom plate (100), wherein several uniformly distributed outer columns (101) are fixed to one side of the top surface of the bottom plate (100); sleeve columns (600) are provided at the inner bottoms of the outer columns (101); several circumferentially distributed feeding boxes (102) run through and are connected to outer side walls of the outer columns (101); a connecting pipe (103) runs through and is connected to one side of each feeding box (102); a discharging pipe runs through and is connected to one end of each of four vertical connecting pipes (103); several circumferentially distributed side plates (700) are fixed to outer side walls of the sleeve columns (600); shot-containing barrels (605) are rotationally connected to the side plates (700), and can accommodate collected steel shots; and the steel shots can be poured into the corresponding feeding boxes (102). The collected steel shots can be conveniently poured into inner shot blasting devices for steel cylinders by means of control by a PLC and a control mechanism, thus improving the degree of automation of the devices, making steel shot recovery convenient and time-saving, and improving the efficiency of the shot blasting for steel cylinders.

Description

A multi-station fully automatic internal shot blasting system for steel cylinders Technical Field

[0001] The invention belongs to the technical field of steel cylinder shot blasting, and particularly relates to a multi-station fully automatic internal shot blasting system for steel cylinders. Background Art

[0002] When the existing steel cylinder inner wall shot blasting equipment is in use, the steel cylinder inner wall shot blasting device provides the power for ejecting the steel shots, and the steel cylinder is fully shot blasted through the cooperation of the steel shot launching part and the electric telescopic head. The shot blasting effect is good, but the steel shots after shot blasting are stored in the collecting device, and the steel shots in the collecting device need to be manually poured into the steel cylinder inner wall shot blasting device, resulting in a low degree of full automation of the device, and manual operation is time-consuming and labor-intensive, which reduces the efficiency of steel cylinder shot blasting.

[0003] Therefore, a multi-station fully automatic internal shot blasting system for steel cylinders is needed to solve the problem in the prior art that steel shots are manually poured into the shot blasting device inside the steel cylinder, resulting in a low degree of automation of the device and time-consuming and labor-intensive manual operation, which reduces the efficiency of steel cylinder shot blasting. Summary of the Invention

[0004] The object of the present invention is to provide a multi-station fully automatic internal shot blasting system for steel cylinders to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a multi-station fully automatic internal shot blasting system for a steel cylinder, comprising a bottom plate, wherein one side of the top surface of the bottom plate is fixed with a plurality of evenly distributed outer columns, the bottom of the outer column is provided with a sleeve column, the outer wall of the sleeve column is fixed with a plurality of side plates distributed in a circumferential manner, adjacent to the side plates are rotatably connected with a rotating toothed connecting block, one side of the rotating toothed connecting block is fixed with a shot barrel, and a connecting block is fixed on one side of the top surface of the outer wall of the shot barrel. A plurality of fixing bars that are circumferentially distributed and cooperate with the connecting block are fixed on the outer wall of the sleeve column, the top surface of the fixing bar is provided with an opening near the sleeve column, the bottom surface of the fixing bar is fixed with a spring on the side away from the sleeve column, the bottom end of the spring is fixed with the corresponding top surface of the connecting block, a pushing assembly is provided on the periphery of the sleeve column, an electric push rod is fixed on the bottom surface of the sleeve column, the output end of the electric push rod is fixed to the top surface of the bottom ring, and a driving assembly is provided in the outer column.

[0006] Furthermore, the outer side wall of the outer column is connected with several feed boxes distributed in a circumferential manner, one side of the feed box is connected with a connecting pipe, and one end of four vertical connecting pipes is respectively connected with the first discharge pipe, the second discharge pipe, the third discharge pipe and the fourth discharge pipe.

[0007] Furthermore, the drive assembly includes a servo motor, which is fixed at the center of the top surface of the inner wall of the outer column. A threaded rod is fixed to the output end of the servo motor, and a threaded sleeve is fixed to the top of the inner wall of the sleeve column. The threaded sleeve is movably connected to the outer wall of the threaded rod.

[0008] Furthermore, the pushing assembly includes a bottom ring, which is arranged on the bottom surface of the sleeve, and a plurality of vertical plates distributed in a circumferential manner are fixed on the top surface of the bottom ring, and the vertical plates pass through the openings accordingly, and a plurality of tooth plates evenly distributed and cooperating with the corresponding rotating toothed connecting blocks are fixed on one side of the outer wall of the vertical plate.

[0009] Furthermore, a material distribution ring pipe is fixed near the middle position of the inner wall of the outer column, and four discharge pipes are connected through the bottom surface of the material distribution ring pipe.

[0010] Furthermore, several evenly distributed support frames are fixed near the middle position on the top surface of the bottom plate, and a shot blasting device inside a steel cylinder is fixed to the inner wall of the support frame. The top surface of the shot blasting device inside the steel cylinder is connected with a central barrel, and the first discharge pipe, the second discharge pipe, the third discharge pipe and the fourth discharge pipe are respectively connected with the outer wall of the central barrel.

[0011] Furthermore, a number of evenly distributed collecting covers are fixed on the other side of the top surface of the bottom plate, an electric telescopic head is fixed to the bottom surface of the inner wall of the collecting cover, a steel shot launching part is fixed to the top surface of the electric telescopic head, a feed pipe is connected through one side of the collecting cover, one end of the feed pipe passes through the corresponding outer column and is connected to the corresponding distribution ring pipe, an electromagnetic valve is provided on the outer wall of the feed pipe, a shot blasting pipe is connected through the bottom surface of the shot blasting device in the cylinder, one end of the shot blasting pipe passes through the bottom surface of the collecting cover and is connected to the electric telescopic head.

[0012] Furthermore, a positioning hole is provided on the top surface of the sleeve column, a positioning column is fixed on one side of the bottom surface of the servo motor, and the positioning post moves through the positioning hole.

[0013] Furthermore, a PLC controller is fixed on the other side of the top surface of the bottom plate near the edge, and the plurality of shot blasting devices in the steel cylinder, the electric telescopic head and the steel shot launching parts are electrically connected to the PLC controller respectively.

[0014] Furthermore, the servo motor, electric push rod and electromagnetic valve are electrically connected to the PLC controller respectively.

[0015] Compared with the prior art, the multi-station fully automatic internal shot blasting system for steel cylinders provided by the present invention has at least the following beneficial effects:

[0016] Through the provided servo motor, threaded rod and threaded sleeve, the sleeve can be moved upward, and then the shot barrels at different positions are moved to the position corresponding to the discharge pipe. Through the provided electromagnetic valve, the steel shots entering the distribution ring can be controlled. Through the provided vertical plate, tooth plate and rotating toothed connecting block, the shot barrel filled with steel shots can be rotated, and then the steel shots in the shot barrel are poured into the corresponding feed box. Through the provided PLC controller, the coordination between the servo motor, electric push rod and electromagnetic valve is more orderly, so that the collected steel shots can be conveniently poured into the shot blasting device in the cylinder, thereby improving the degree of automation of the device. At the same time, the steel shot recovery is convenient and time-saving, thereby improving the efficiency of cylinder shot blasting. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] FIG1 is a schematic diagram of the overall structure of the present invention;

[0018] FIG2 is a schematic diagram of the structure of the collecting cover of the present invention;

[0019] FIG3 is a schematic diagram of the structure of the material distribution ring pipe of the present invention;

[0020] FIG4 is a schematic structural diagram of the feed box of the present invention;

[0021] FIG5 is a schematic diagram of the structure of the discharge pipe of the present invention;

[0022] FIG6 is a schematic diagram of the structure of the pill barrel of the present invention;

[0023] FIG7 is a schematic diagram of the bottom ring structure of the present invention;

[0024] FIG8 is a schematic diagram of the positioning hole structure of the present invention;

[0025] FIG9 is a schematic diagram of the structure of the vertical plate portion of the present invention.

[0026] In the picture:

[0027] 100, bottom plate; 101, outer column; 102, feed box; 103, connecting pipe; 104, first discharge pipe; 105, second discharge pipe; 106, third discharge pipe; 107, fourth discharge pipe;

[0028] 200, threaded rod; 201, positioning column; 202, servo motor;

[0029] 300, material distribution ring pipe; 301, discharge pipe; 302, feed pipe; 303, electromagnetic valve;

[0030] 400, collecting cover; 401, electric telescopic head; 402, steel shot launching unit;

[0031] 500, shot blasting device in steel cylinder; 501, support frame; 502, shot blasting tube; 503, centralized barrel;

[0032] 600, sleeve column; 601, fixing bar; 602, opening; 603, spring; 604, connecting block; 605, pill barrel;

[0033] 700, side plate; 701, rotating toothed connecting block; 702, bottom ring; 703, vertical plate; 704, toothed plate;

[0034] 800, electric push rod;

[0035] 900, threaded sleeve; 901, positioning hole; 902, PLC controller. DETAILED DESCRIPTION

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example

[0037] The applicant has found that the existing technology has the problem of manually pouring steel shots into the shot blasting device in the steel cylinder, which results in a low degree of automation of the device, and the manual operation is time-consuming and labor-intensive, which reduces the efficiency of the steel cylinder shot blasting. To this end, Example 1 proposes a multi-station steel cylinder fully automatic internal shot blasting system, as shown in Figure 1-9. The multi-station steel cylinder fully automatic internal shot blasting system includes a bottom plate 100, and a plurality of evenly distributed outer columns 101 are fixed on one side of the top surface of the bottom plate 100. There are four outer columns 101, and a sleeve column 600 is provided on the bottom of the outer column 101. The outer wall of the sleeve column 600 is fixed with a plurality of circumferentially distributed side plates 700, and adjacent side plates 700 are rotatably connected with a rotating toothed connecting block 701, and a pill barrel 605 is fixed on one side of the rotating toothed connecting block 701, and a connecting rod 605 is fixed on one side of the outer wall of the pill barrel 605. The connecting block 604 is fixed with a plurality of fixing bars 601 distributed in a circumference and matched with the connecting block 604 on the outer side wall of the sleeve 600. An opening 602 is provided on the top surface of the fixing bar 601 close to the side of the sleeve 600. A spring 603 is fixed on the bottom surface of the fixing bar 601 away from the side of the sleeve 600. The bottom end of the spring 603 is fixed to the top surface of the corresponding connecting block 604. A pushing assembly is provided on the periphery of the sleeve 600. An electric push rod 800 is fixed to the bottom surface of the sleeve 600. The output end of the electric push rod 800 is fixed to the top surface of the bottom ring 702. A driving assembly is provided in the outer column 101.

[0038] As a further solution of the present invention, the outer side wall of the outer column 101 is connected with several feed boxes 102 distributed in a circular pattern, one side of the feed box 102 is connected with a connecting pipe 103, and one end of four vertical connecting pipes 103 is respectively connected with a first discharge pipe 104, a second discharge pipe 105, a third discharge pipe 106 and a fourth discharge pipe 107.

[0039] By setting up the feed box 102, the shot barrel 605 is tilted downward, and the steel shots in the shot barrel 605 can enter the central barrel 503 through the feed box 102, the first discharge pipe 104, the second discharge pipe 105, the third discharge pipe 106 and the fourth discharge pipe 107, and finally return to the shot blasting device 500 in the cylinder.

[0040] As a further solution of the present invention, the drive assembly includes a servo motor 202, which is fixed at the center of the top surface of the inner wall of the outer column 101. A threaded rod 200 is fixed at the output end of the servo motor 202, and a threaded sleeve 900 is fixed at the top of the inner wall of the sleeve column 600. The threaded sleeve 900 is movably connected to the outer wall of the threaded rod 200.

[0041] By providing the threaded rod 200 and the threaded sleeve 900 , when the servo motor 202 rotates, the pill loading barrel 605 can be moved to the feed box 102 at the corresponding position.

[0042] As a further solution of the present invention, the pushing assembly includes a bottom ring 702, which is arranged on the bottom surface of the sleeve 600. The top surface of the bottom ring 702 is fixed with a number of vertical plates 703 distributed in a circular pattern. The vertical plates 703 pass through the opening 602 accordingly. A side surface of the outer wall of the vertical plate 703 is fixed with a number of evenly distributed tooth plates 704 that correspond to the rotating toothed connecting block 701.

[0043] By providing a pushing assembly, several rotating toothed connecting blocks 701 can rotate synchronously.

[0044] As a further solution of the present invention, a material distribution ring tube 300 is fixed near the middle position of the inner wall of the outer column 101, and four discharge pipes 301 are connected through the bottom surface of the material distribution ring tube 300.

[0045] By providing the distribution ring tube 300 , the steel shots entering the discharge pipe 301 from the collecting cover 400 can enter the distribution ring tube 300 and then enter the discharge pipe 301 from the distribution ring tube 300 .

[0046] As a further solution of the present invention, several evenly distributed support frames 501 are fixed near the middle position on the top surface of the base plate 100, and a shot blasting device 500 in a steel cylinder is fixed on the inner wall of the support frame 501. The top surface of the shot blasting device 500 in the steel cylinder is connected with a central barrel 503, and the first discharge pipe 104, the second discharge pipe 105, the third discharge pipe 106 and the fourth discharge pipe 107 are respectively connected with the outer wall of the central barrel 503.

[0047] By setting up the shot blasting device 500 in the steel cylinder, the steel shot cylinder can be shot blasted.

[0048] As a further solution of the present invention, a number of evenly distributed collecting covers 400 are fixed on the other side of the top surface of the base plate 100, an electric telescopic head 401 is fixed to the bottom surface of the inner wall of the collecting cover 400, and a steel shot launching part 402 is fixed to the top surface of the electric telescopic head 401. A feeding pipe 302 is connected to one side of the collecting cover 400, one end of the feeding pipe 302 passes through the corresponding outer column 101 and is connected to the corresponding distribution ring pipe 300, an electromagnetic valve 303 is provided on the outer wall of the feeding pipe 302, and a shot blasting pipe 502 is connected to the bottom surface of the shot blasting device 500 in the cylinder, one end of the shot blasting pipe 502 passes through the bottom surface of the collecting cover 400 and is connected to the electric telescopic head 401.

[0049] By setting the electric telescopic head 401, the steel shot launching part 402 can be moved up and down, thereby performing shot peening on the inner wall of the cylinder. By setting the steel shot launching part 402, the steel shots can be ejected, and at the same time, the steel shot launching part 402 can be rotated, so that the inner wall of the cylinder can be shot peened in all directions.

[0050] As a further solution of the present invention, a positioning hole 901 is opened on the top surface of the sleeve column 600 , a positioning column 201 is fixed to one side of the bottom surface of the servo motor 202 , and the positioning post moves through the positioning hole 901 .

[0051] The position of the sleeve 600 is limited by the provided positioning column 201 and the positioning hole 901 .

[0052] As a further solution of the present invention, a PLC controller 902 is fixed near the edge position on the other side of the top surface of the base plate 100, and several of the shot blasting devices 500 in the cylinder, the electric telescopic head 401 and the steel shot launching part 402 are electrically connected to the PLC controller 902 respectively.

[0053] The PLC controller 902 is provided so that the shot blasting device 500 in the steel cylinder, the electric telescopic head 401 and the steel shot launching part 402 can work in coordination.

[0054] As a further solution of the present invention, the servo motor 202 , the electric push rod 800 and the electromagnetic valve 303 are electrically connected to the PLC controller 902 respectively.

[0055] The pill barrel 605 can be rotated by the electric push rod 800 .

[0056] In summary: When shot blasting is performed on the inside of a steel cylinder, first, multiple steel cylinders are fixed on the steel cylinder fixing devices respectively so that the steel cylinders correspond to the steel shot launching parts 402 one by one, and then the PLC controller 902 is operated to start the four steel cylinder shot blasting devices 500 synchronously. The shot blasting devices 500 in the steel cylinder are started to push the internal steel shots into the shot blasting tube 502 and into the electric telescopic head 401, and then are ejected from the steel shot launching part 402. At the same time as the shot blasting devices 500 in the steel cylinder are started, the electric telescopic head 401 reciprocates up and down, thereby driving the steel shot launching part 402 to reciprocate up and down, and performing up and down shot blasting on the inside of the steel cylinder. At the same time, the steel shot launching part 402 is started, so that the steel shot launching part 402 can rotate, and cooperate with the electric telescopic head 401 to perform comprehensive shot blasting on the inside of the steel cylinder, and the steel shots after shot blasting fall into the collecting cover 400.

[0057] When the steel shot is recycled, the PLC controller 902 controls the four electromagnetic valves 303 to open synchronously, and the steel shot passes through the feed pipe 302 from the collection cover 400 and enters the distribution ring pipe 300, and is finally discharged from the discharge pipe 301 into the four pill loading barrels 605 at the top. The opening time of the electromagnetic valve 303 is preset in advance by the internal program of the PLC controller 902, so that after the electromagnetic valve 303 is opened, the steel shot in the collection cover 400 enters the pill loading barrel 605 and just fills the pill loading barrel 605. When the four pill loading barrels 605 at the top are filled, the PLC controller 902 controls the electromagnetic valve 303 to close, and the steel shot is discharged from the collection cover 400 through the feed pipe 302 and enters the distribution ring pipe 300. The discharge pipe 301 is finally discharged from the discharge pipe 301 into the four pill loading barrels 605 at the top. At this time, the servo motor 202 rotates to drive the threaded rod 200 to rotate, and the threaded rod 200 rotates to drive the sleeve 600 to move up, so that the distance the sleeve 600 moves up is the distance between the upper and lower pill barrels 605. At this time, the new pill barrel 605 corresponds to the discharge pipe 301, and the servo motor 202 is turned off. Then the PLC controller 902 controls the electromagnetic valve 303 to open again. The opening time is the same as the first time. At this time, the steel shots in the collection cover 400 enter the new pill barrel 605 and are filled. After a period of time, the pill barrel 605 is filled, and the PLC controller 902 controls the electromagnetic valve 303 to close. The servo motor 202 is turned off. The machine 202 is started, so that the sleeve column 600 moves up, and the new pill barrel 605 is opposite to the discharge pipe 301. The above operation is repeated until all the pill barrels 605 are filled. Then the PLC controller 902 controls the servo motor 202 to start again. The servo motor 202 rotates to rotate the threaded rod 200, and the threaded rod 200 rotates to drive the sleeve column 600 to move up, and finally the pill barrel 605 is located above the feed box 102 and corresponds to the feed box 102 one by one. At this time, the PLC controller 902 controls the electric push rod 800 to start, and the electric push rod 800 pushes the bottom ring 702, so that the vertical plate 703 moves up, and the tooth plate 704 and the rotating plate are rotated. The movable tooth-shaped connecting block 701 engages, causing the shot barrel 605 to rotate downward. At this time, the spring 603 is stretched and the steel shots in the shot barrel 605 enter the corresponding feed box 102, and enter the connecting pipe 103 through the feed box 102, and finally enter the first discharge pipe 104, the second discharge pipe 105, the third discharge pipe 106 and the fourth discharge pipe 107 respectively, and then pass through the central barrel 503 into the shot blasting device 500 in the cylinder, so that the steel shots are recycled. After that, the PLC controller 902 controls the electric push rod 800 to reset, so that the vertical plate 703 is reset, and the servo motor 202 rotates in the opposite direction, so that the sleeve 600 is reset.

[0058] The servo motor 202, electromagnetic valve 303, electric telescopic head 401, steel shot launching part 402, shot blasting device in cylinder 500, electric push rod 800 and PLC controller 902 can be purchased on the market. They are mature technologies in this field and have been fully disclosed, so they are not repeated in the specification.

[0059] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A multi-station cylinder fully automatic internal shot peening system, comprising a bottom plate (100), characterized in that: A plurality of evenly distributed outer columns (101) are fixed to one side of the top surface of the bottom plate (100); a sleeve column (600) is provided at the bottom of the inner side of the outer column (101); a plurality of circumferentially distributed side plates (700) are fixed to the outer side wall of the sleeve column (600); a rotating toothed connecting block (701) is rotatably connected between adjacent side plates (700); a pill loading barrel (605) is fixed to one side of the rotating toothed connecting block (701); a connecting block (604) is fixed to one side of the top surface of the outer side wall of the pill loading barrel (605); a plurality of circumferentially distributed side plates (700) and connected to the connecting block (604) are fixed to the outer side wall of the sleeve column (600); 04) is matched with a fixing bar (601), the top surface of the fixing bar (601) is provided with an opening (602) close to the sleeve column (600), the bottom surface of the fixing bar (601) is fixed with a spring (603) away from the sleeve column (600), the bottom end of the spring (603) is fixed to the top surface of the corresponding connecting block (604), a pushing assembly is arranged on the periphery of the sleeve column (600), an electric push rod (800) is fixed to the bottom surface of the sleeve column (600), the output end of the electric push rod (800) is fixed to the top surface of the bottom ring (702), and a driving assembly is arranged in the outer column (101).

2. A multi-station cylinder fully automatic internal shot peening system according to claim 1, characterized in that: The outer wall of the outer column (101) is connected through a plurality of circumferentially distributed feed boxes (102); one side of the feed box (102) is connected through a connecting pipe (103); one end of four vertical connecting pipes (103) is respectively connected through a first discharge pipe (104), a second discharge pipe (105), a third discharge pipe (106) and a fourth discharge pipe (107).

3. A multi-station cylinder fully automatic internal shot peening system according to claim 2, characterized in that: The driving assembly comprises a servo motor (202), the servo motor (202) being fixed at the center of the top surface of the inner wall of the outer column (101), a threaded rod (200) being fixed at the output end of the servo motor (202), a threaded sleeve (900) being fixed at the top of the inner wall of the sleeve column (600), and the threaded sleeve (900) being movably connected to the outer wall of the threaded rod (200).

4. A multi-station steel cylinder fully automatic internal shot peening system according to claim 3, characterized in that: The pushing assembly comprises a bottom ring (702), the bottom ring (702) being arranged on the bottom surface of the sleeve column (600), a plurality of circumferentially distributed vertical plates (703) being fixed on the top surface of the bottom ring (702), the vertical plates (703) correspondingly passing through the opening (602), and a plurality of evenly distributed tooth plates (704) matching the corresponding rotating toothed connecting blocks (701) being fixed on one side of the outer wall of the vertical plates (703).

5. A multi-station steel cylinder fully automatic internal shot peening system according to claim 4, characterized in that: A material distribution ring pipe (300) is fixed near the middle of the inner wall of the outer column (101), and four material discharge pipes (301) are connected through the bottom surface of the material distribution ring pipe (300).

6. A multi-station steel cylinder fully automatic internal shot peening system according to claim 5, characterized in that: A plurality of evenly distributed support frames (501) are fixed near the middle of the top surface of the bottom plate (100); a steel cylinder shot blasting device (500) is fixed to the inner side wall of the support frame (501); a centralizing barrel (503) is connected through the top surface of the steel cylinder shot blasting device (500); and the first discharge pipe (104), the second discharge pipe (105), the third discharge pipe (106) and the fourth discharge pipe (107) are respectively connected through the outer side wall of the centralizing barrel (503).

7. A multi-station steel cylinder fully automatic internal shot peening system according to claim 6, characterized in that: A plurality of evenly distributed collecting covers (400) are fixed to the other side of the top surface of the bottom plate (100); an electric telescopic head (401) is fixed to the bottom surface of the inner wall of the collecting cover (400); a steel shot launching part (402) is fixed to the top surface of the electric telescopic head (401); a feeding pipe (302) is connected through one side of the collecting cover (400); one end of the feeding pipe (302) passes through the corresponding outer column (101) and is connected through the corresponding material distribution ring pipe (300); an electromagnetic valve (303) is provided on the outer wall of the feeding pipe (302); a shot blasting pipe (502) is connected through the bottom surface of the shot blasting device (500) in the steel cylinder; one end of the shot blasting pipe (502) passes through the bottom surface of the collecting cover (400) and is connected to the electric telescopic head (401).

8. The multi-station steel cylinder fully automatic internal shot peening system according to claim 7 is characterized in that: A positioning hole (901) is provided on the top surface of the sleeve column (600), a positioning column (201) is fixed to one side of the bottom surface of the servo motor (202), and the positioning post moves through the positioning hole (901).

9. A multi-station steel cylinder fully automatic internal shot peening system according to claim 8, characterized in that: A PLC controller (902) is fixed to the other side of the top surface of the bottom plate (100) near the edge, and the plurality of in-cylinder shot blasting devices (500), the electric telescopic head (401) and the steel shot launching unit (402) are electrically connected to the PLC controller (902) respectively.

10. A multi-station steel cylinder fully automatic internal shot peening system according to claim 9, characterized in that: The servo motor (202), the electric push rod (800) and the electromagnetic valve (303) are electrically connected to the PLC controller (902) respectively.

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