Intelligent turnover equipment for shield segment reinforcement cage

Abstract

The invention relates to the technical field of shield segment production, in particular to shield segment reinforcement cage intelligent turnover equipment which comprises a steering component, a limiting component is fixedly mounted at the top end of the steering component, a reinforcement cage is placed in the top end of the limiting component, and the limiting component comprises an alignment device and a supporting device. The alignment devices are symmetrically and fixedly installed at the top ends of the two sides of the supporting device and comprise supporting base frames and reset springs, the reset springs are fixedly installed in the supporting base frames, and limiting sleeve rods are slidably inserted into the ends, away from the reset springs, of the interiors of the supporting base frames. And the side end, away from the reset spring, of the supporting base frame is rotatably provided with a first wire guide wheel, the supporting device comprises a positioning base frame and supporting transverse frames, and the supporting transverse frames are fixedly installed at the bottom end in the positioning base frame at equal intervals and are annularly distributed. And through the arrangement of the limiting component and the steering component, the purposes of overturning, limiting and positioning of the reinforcement cage and synchronous deviation of the welding machine are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of shield segment production, in particular to intelligent turning equipment for a shield segment reinforcement skeleton. Background Art

[0002] The shield segment is a key assembly component in shield construction and is also the innermost barrier of the tunnel (some say it is the outermost barrier), playing multiple important roles.

[0003] The steel skeleton in the shield segment mainly plays the role of enhancing the bearing capacity of the segment, improving the integrity and stability of the segment and increasing the durability of the segment. Therefore, the steel skeleton plays a vital role in the shield segment.

[0004] For example, a steel cage processing production line and production method for shield pipe segments with Chinese patent publication number CN111957863A, the steel cage processing production line for shield pipe segments includes a cutting unit, a bending unit, a stirrup making unit, a cage body welding unit, an accessory welding unit and a finished product transportation unit, the cutting unit and the bending unit are connected for material conveying, the accessory welding unit and the finished product transportation unit are connected for material conveying, the bending unit and the stirrup making unit are arranged side by side on one side of the cage body welding unit, and the accessory welding unit and the finished product transportation unit are arranged side by side on the other side of the cage body welding unit; the cage body welding unit includes a U-shaped track and a tire mold frame trolley, and the tire mold frame trolley can perform cyclic material connection between the bending unit, the stirrup making unit and the accessory welding unit.

[0005] For example, the Chinese patent publication number CN111545981A is an intelligent flipping device for the steel skeleton of a shield segment, which includes a magnetic displacement system, a mold frame 1, a rolling system, a welding system, a locking system, a mold frame 2, a frame placing system, a placing table 1, a displacement system, an inversion system, and a side welding system. The magnetic displacement system and the rolling system cooperate with each other to achieve accurate positioning of the steel skeleton, without the need for human intervention, which saves time and effort in operation and can perform all-round welding of the steel skeleton, greatly reducing the possibility of missing key welding points, while ensuring the uniformity of the quality of the welding points.

[0006] At present, when welding the steel skeleton in the shield segments on the market, multiple steel bars are overlapped and welded. In addition, since the skeleton is large and heavy, when welding the bottom end of the steel skeleton, it is often necessary to first weld the top end of the skeleton and then use external lifting equipment to flip the skeleton as a whole before welding the bottom end of the skeleton. As a result, the existing steel skeleton cannot perform the functions of skeleton flipping, limiting positioning and synchronous offset of the welding machine. Therefore, a device is needed to improve the above problem. Summary of the invention

[0007] In view of the problems in the prior art, the present invention provides an intelligent turning device for a steel bar skeleton of a shield segment.

[0008] The technical solution adopted by the present invention to solve its technical problems is: a shield segment steel frame intelligent turning device, including a steering component, a limiting component is fixedly installed on the top of the steering component, a steel frame is placed inside the top of the limiting component, the limiting component includes a positioning device and a supporting device, the positioning device is symmetrically fixedly installed on the top of both sides of the supporting device, the positioning device includes a supporting base and a reset spring, the reset spring is fixedly installed inside the supporting base, the inner end of the supporting base away from the reset spring can be slidably inserted with a limiting sleeve rod, the supporting base The side end of the frame away from the return spring is rotatably mounted with a first wire wheel, and the supporting device includes a positioning base frame and a supporting cross frame, the supporting cross frame is equidistantly fixedly mounted on the inner bottom end of the positioning base frame, and the supporting cross frame is distributed in a ring shape, the bottom two ends of the bottom of the positioning base frame are fixedly mounted with a base frame, the top of the side end of the base frame away from the supporting cross frame is rotatably mounted with a first gear, the side end of the first gear away from the supporting cross frame is fixedly mounted with a winding wheel, two connecting ropes are fixedly mounted on the outer ring of the winding wheel, and the second wire wheels are rotatably mounted on the bottom ends of both sides of the positioning base close to the first gear.

[0009] Specifically, the steering component includes a displacement device and a positioning device, and the displacement device is symmetrically slidably inserted into the inner bottom end of the positioning device.

[0010] Specifically, the displacement device includes a welding gun, a welding machine and a supporting chassis, the welding gun is fixedly mounted on the welding machine, the welding machine is fixedly mounted on the top of the supporting chassis, a rack is fixedly mounted on the side end of the supporting chassis, and a key is fixedly mounted at the center of the bottom end of the rack;

[0011] When the rack is driven in positive and negative directions by the second gear, the rack can drive the welding machine to move back and forth on the base plate.

[0012] Specifically, the positioning device includes a base plate, a supporting shell and a driving motor, the supporting shell is fixedly mounted on the top two ends of the base plate, the driving motor is fixedly mounted on the inner side end of the supporting shell, a worm is fixedly mounted on the side end of the driving motor, a second supporting shaft is rotatably mounted on the top of the opposite side end of the supporting shell, a worm gear is fixedly mounted on the end of the second supporting shaft close to the driving motor, a third gear is fixedly mounted on the end of the second supporting shaft away from the driving motor, a transmission toothed belt is meshed and sleeved on the outer ring of the third gear, a fourth gear is meshed on the inner bottom end of the transmission toothed belt, a first supporting shaft is rotatably mounted between the supporting shell and the fourth gear, a second gear is fixedly mounted on the side end of the fourth gear away from the supporting shell, a gear ring is fixedly mounted on the top of the side end of the supporting shell close to the third gear, and the gear ring is located on the outer ring of the second supporting shaft;

[0013] When the positioning base rotates, it can drive the first gear to rotate synchronously along the outer ring of the gear ring, and then the winding wheel can pull the connecting rope.

[0014] Specifically, the top of the limiting sleeve rod away from the reset spring is connected to the top of the side end of the positioning base frame close to the second wire wheel, the base frame is fixedly mounted on the second support shaft, the key is slidably inserted into the top of the top of the base plate, the rack is meshed with the second gear, and the end of the connecting rope away from the second wire wheel is connected to the end of the limiting sleeve rod close to the reset spring.

[0015] Specifically, the supporting cross frame is provided with square grooves at equal intervals, the first gear is meshed with the gear ring, and the base plate is provided with a slot inside the top end close to the supporting shell.

[0016] Specifically, the worm wheel is meshed with the worm, and a sleeve hole is provided at the center of the side end of the limiting sleeve rod away from the reset spring.

[0017] Specifically, the bottom end of the supporting chassis is in contact with the top end of the base plate, and the steel bar skeleton is placed on the top end of the supporting cross frame.

[0018] Specifically, a movable groove is provided at the inner center of the support base away from the reset spring, and the connection ropes on the winding wheel are spaced 2 cm apart.

[0019] Specifically, the positioning base frame further comprises an anti-deflection plate and a positioning side plate, the anti-deflection plate is fixedly mounted on the positioning side plate at equal distances, and the positioning side plates are fixedly mounted on both ends of the interior of the positioning base frame.

[0020] Beneficial effects of the present invention:

[0021] First, the present invention places a steel frame between a positioning base and a supporting cross frame. When the driving motor is started, the second supporting shaft can be driven to rotate through the worm and the worm gear, so that the positioning base can drive the steel frame to flip as a whole. At the same time, when the positioning base is flipped, the first gear can rotate on the gear ring, so that the winding wheel can pull the connecting rope to drive the limiting sleeve rod to buckle on the periphery of the steel frame, which can limit the positioning of both sides of the steel frame, thereby completing the work of rapid flipping and limited positioning of the steel frame.

[0022] Secondly, when the positioning base rotates, the second support shaft of the present invention can drive the third gear to rotate synchronously, causing the second gear to rotate on the rack, thereby driving the welding machine to move on the top of the substrate, and the displacement direction of the rack is opposite to the rotation direction of the positioning base, so that the positioning base can be prevented from contacting the welding machine when rotating, and the welding machine can be transferred synchronously to complete the work of synchronous displacement of the welding machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the main body of the present invention from the front perspective;

[0025] Figure 2 It is a schematic diagram of the front viewing angle stereoscopic structure of the limiting component in the present invention;

[0026] Figure 3 It is a schematic diagram of the three-dimensional structure of the alignment device in the present invention from a front perspective;

[0027] Figure 4 It is a schematic diagram of the three-dimensional structure of the support device in the present invention from a front perspective;

[0028] Figure 5 It is a schematic diagram of the three-dimensional structure of the steering component of the present invention from a front perspective;

[0029] Figure 6 It is a schematic diagram of the three-dimensional structure of the displacement device of the present invention from the front perspective;

[0030] Figure 7 It is a schematic diagram of the three-dimensional structure of the positioning device in the present invention from a front perspective;

[0031] Figure 8 It is a schematic diagram of the three-dimensional structure from the front perspective of the second embodiment of the positioning base in the present invention.

[0032] In the figure: 1-limiting component, 2-steering component, 3-reinforcement skeleton, 4-aligning device, 5-supporting device, 6-reset spring, 7-first wire wheel, 8-limiting sleeve rod, 9-support base frame, 10-base frame, 11-second wire wheel, 12-connecting rope, 13-support cross frame, 14-first gear, 15-winding wheel, 16-positioning base frame, 17-displacement device, 18-positioning device, 19-welding gun, 20-welding machine, 21-support chassis, 22-key, 23-rack, 24-first support shaft, 25-gear ring, 26-second support shaft, 27-second gear, 28-third gear, 29-transmission toothed belt, 30-worm gear, 31-drive motor, 32-support shell, 33-base plate, 34-worm, 35-fourth gear, 36-anti-bias plate, 37-positioning side plate. DETAILED DESCRIPTION

[0033] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0034] The present invention is further described below in conjunction with the accompanying drawings.

[0035] Example 1

[0036] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, an intelligent turning device for a steel frame of a shield segment of the present invention comprises a steering component 2, a limiting component 1 is fixedly installed on the top of the steering component 2, a steel frame 3 is placed inside the top of the limiting component 1, the limiting component 1 comprises a positioning device 4 and a supporting device 5, the positioning device 4 is symmetrically fixedly installed on the tops of both sides of the supporting device 5, the positioning device 4 comprises a supporting base frame 9 and a reset spring 6, the reset spring 6 is fixedly installed inside the supporting base frame 9, the inner end of the supporting base frame 9 away from the reset spring 6 can be slidably inserted with a limiting sleeve rod 8, and the side end of the supporting base frame 9 away from the reset spring 6 can be rotatably installed There is a first wire wheel 7, and the supporting device 5 includes a positioning base frame 16 and a supporting cross frame 13. The supporting cross frame 13 is fixedly installed at the inner bottom end of the positioning base frame 16 at equal distances, and the supporting cross frame 13 is distributed in a ring shape. The bottom ends of the positioning base frame 16 are fixedly installed with a base frame 10, and the top of the side end of the base frame 10 away from the supporting cross frame 13 is rotatably installed with a first gear 14. The side end of the first gear 14 away from the supporting cross frame 13 is fixedly installed with a winding wheel 15, and two connecting ropes 12 are fixedly installed on the outer ring of the winding wheel 15. The positioning base frame 16 is rotatably installed with a second wire wheel 11 at the bottom ends on both sides close to the first gear 14.

[0037] like Figure 5 The steering component 2 includes a displacement device 17 and a positioning device 18. The displacement device 17 is symmetrically slidably inserted into the inner bottom end of the positioning device 18 to support the displacement of the displacement device 17.

[0038] like Figure 6 The displacement device 17 includes a welding gun 19, a welding machine 20 and a supporting chassis 21. The welding gun 19 is fixedly mounted on the welding machine 20. The welding machine 20 is fixedly mounted on the top of the supporting chassis 21. A rack 23 is fixedly mounted on the side end of the supporting chassis 21. A key 22 is fixedly mounted on the bottom center of the rack 23. Through the setting of the supporting chassis 21, the welding gun 19 can be placed inside the supporting chassis 21.

[0039] When the rack 23 is driven in positive and negative directions by the second gear 27 , the rack 23 can drive the welding machine 20 to move back and forth on the base plate 33 .

[0040] like Figure 7 The positioning device 18 includes a base plate 33, a support shell 32 and a drive motor 31. The support shell 32 is fixedly mounted on both ends of the top of the base plate 33. The drive motor 31 is fixedly mounted on the inner side end of the support shell 32. A worm 34 is fixedly mounted on the side end of the drive motor 31. A second support shaft 26 is rotatably mounted on the top of the opposite side end of the support shell 32. A worm gear 30 is fixedly mounted on the end of the second support shaft 26 close to the drive motor 31. A third gear 28 is fixedly mounted on the end of the second support shaft 26 away from the drive motor 31. The outer ring of the gear 28 is meshed with a transmission toothed belt 29, and the inner bottom end of the transmission toothed belt 29 is meshed with a fourth gear 35. The first support shaft 24 is rotatably mounted between the support shell 32 and the fourth gear 35. The side end of the fourth gear 35 away from the support shell 32 is fixedly mounted with the second gear 27. The top of the side end of the support shell 32 close to the third gear 28 is fixedly mounted with a gear ring 25, and the gear ring 25 is located on the outer ring of the second support shaft 26. Through the setting of the first support shaft 24, the second gear 27 and the fourth gear 35 can be supported to rotate simultaneously.

[0041] When the positioning base 16 rotates, it can drive the first gear 14 to rotate synchronously along the outer ring of the gear ring 25 , and then the winding wheel 15 can pull the connecting rope 12 .

[0042] The top of the limiting sleeve rod 8 is away from the reset spring 6 and is connected to the top of the side end of the positioning base frame 16 close to the second wire wheel 11. The base frame 10 is fixedly mounted on the second support shaft 26, and the key 22 is slidably inserted into the top of the base plate 33. The rack 23 is meshed with the second gear 27. The end of the connecting rope 12 away from the second wire wheel 11 is connected to the end of the limiting sleeve rod 8 close to the reset spring 6. Square grooves are equidistantly provided on the support cross frame 13, the first gear 14 is meshed with the gear ring 25, and the base plate 33 is provided with a slot inside the top of the support shell 32. The worm gear 30 is meshed with the worm 34. The center of the side end of the limiting sleeve rod 8 away from the reset spring 6 is provided with a sleeve hole, and the bottom end of the support chassis 21 is fitted with the top of the base plate 33. The steel skeleton 3 is placed on the top of the support cross frame 13, and the support base frame 9 is provided with a movable groove in the inner center away from the reset spring 6. The connecting ropes 12 on the winding wheel 15 are spaced 2 cm apart.

[0043] The working principle of the embodiment 1 is as follows: when in use, the spot-welded steel skeleton 3 is first placed inside the positioning base frame 16. By setting the supporting cross frame 13, the steel skeleton 3 can be stably placed to prevent the steel skeleton 3 from being skewed or offset again. Then, the user can hold the welding gun 19 to weld the remaining positions around the steel skeleton 3 that need to be welded;

[0044] Subsequently, when it is necessary to weld the bottom end of the steel bar skeleton 3, the driving motor 31 can be started to drive the worm 34 to rotate, and the worm 34 is meshed with the worm wheel 30, so that when the worm 34 rotates, it can drive the worm wheel 30 and the second support shaft 26 to rotate at the same time, and the base frame 10 is fixedly installed on the second support shaft 26, so that when the second support shaft 26 rotates, it can drive the positioning base 16 to rotate as a whole, and when the positioning base 16 rotates, the first gear 14 is meshed with the outer ring of the gear ring 25, so that when the positioning base 16 rotates, it can drive the first gear 14 to rotate along the outer ring surface of the gear ring 25, so that the first gear 14 can drive the winding wheel 15 to rotate, and when the winding wheel 15 rotates, it can pull Pull the connecting rope 12, and connect the end of the connecting rope 12 away from the winding wheel 15 with the end of the limiting sleeve rod 8 close to the reset spring 6, so that when the connecting rope 12 is pulled, the limiting sleeve rod 8 can be driven to move toward the end away from the reset spring 6, and the connecting rope 12 passes through the outer ring surfaces of the second wire wheel 11 and the first wire wheel 7 in sequence, so that the connecting rope 12 can move with the first wire wheel 7 and the second wire wheel 11 as the base points respectively. When the limiting sleeve rod 8 moves outward from the inside of the supporting base frame 9, it can drive the limiting sleeve rod 8 to slide and sleeve on the outer ring of the steel frame 3, so that the limiting sleeve rod 8 can limit the two sides of the steel frame 3 to prevent the steel frame 3 from falling from the inside of the positioning base frame 16 when the positioning base frame 16 is turned over;

[0045] At the same time, when the second support shaft 26 is rotating, the third gear 28 can also be driven to rotate. The third gear 28 can drive the fourth gear 35 and the second gear 27 to rotate through the transmission belt 29. The second gear 27 is meshed with the rack 23, so that when the second gear 27 rotates, the rack 23 can be driven to move on the base plate 33. The displacement direction of the rack 23 is opposite to the rotation direction of the positioning base 16, so that the positioning base 16 can be prevented from interfering with the welding machine 20 during rotation. At the same time, the key 22 slides in the slot inside the top of the base plate 33, so that the rack 23 can be ensured to move in a straight line. Subsequently, when the positioning base 16 is rotated to a horizontal position, the user can operate the welding gun 19 to weld the unfinished welded portion at the bottom of the steel frame 3.

[0046] When the welding work is completed at the bottom and the bottom of the steel frame 3, the driving motor 31 can be started to drive the worm 34 to rotate in the opposite direction, so that the worm wheel 30, the third gear 28 and the second support shaft 26 rotate in the opposite direction at the same time. When the second support shaft 26 rotates in the opposite direction, the positioning base 16 can be driven to rotate and reset until the positioning base 16 drives the steel frame 3 to rotate upward and vertical again. At the same time, when the first gear 14 rotates in the opposite direction along the surface of the gear ring 25, the winding wheel 15 can release the connecting rope 12, and the elasticity of the reset spring 6 will drive the limiting sleeve rod 8 to move to the inside of the support base 9 and reset, so as to prevent the steel frame 3 from interfering with the limiting sleeve rod 8 when it is subsequently taken out. At the same time, when the third gear 28 drives the fourth gear 35 to rotate in the opposite direction through the transmission toothed belt 29, the second gear 27 can be driven to rotate in the opposite direction at the same time, so that the rack 23 can drive the welding machine 20 to reset at the same time. When the positioning base 16 rotates to a vertical state, the rack 23 can drive the welding machine 20 to move to the bottom end of the positioning base 16 again to complete the reset work of the welding machine 20.

[0047] When the device is in use, the self-locking property between the worm 34 and the worm wheel 30 makes it easy to rotate the positioning base frame 16 to a specified angle. At the same time, the steel bars in the steel bar skeleton 3 are docked with the square groove buckles inside the supporting cross frame 13, so that the stability of the steel bar skeleton 3 when placed can be improved to complete the work. When the limiting sleeve rod 8 is displaced into the positioning base frame 16, the limiting sleeve rod 8 can be driven to move away from the sleeve hole in the reset spring 6 to the steel bars in the steel bar skeleton 3, so that the steel bar skeleton 3 can be limited in position to prevent the steel bar skeleton 3 from falling from the inside of the positioning base frame 16 when the positioning base frame 16 is flipped.

[0048] Example 2

[0049] On the basis of Example 1, Figure 8 As shown, the positioning base frame 16 further includes an anti-deflection plate 36 and a positioning side plate 37 . The anti-deflection plate 36 is fixedly mounted on the positioning side plate 37 at equal distances. The positioning side plates 37 are fixedly mounted at both ends of the interior of the positioning base frame 16 .

[0050] When implementing this embodiment, through the provision of the anti-deviation plate 36, when the steel skeleton 3 is placed inside the positioning base 16, the anti-deviation plate 36 can limit the steel bars at both ends of the steel skeleton 3 to prevent the stress of the steel bars inside the steel skeleton 3 from causing the steel skeleton 3 as a whole to shift inside the steel skeleton 3 during welding. In addition, by limiting the bottom of both ends of the positioning base 16 through the positioning side plates 37, the steel skeleton 3 can be prevented from falling, thereby completing the work.

[0051] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent turning device for a steel frame of a shield segment, comprising a steering component (2), a limiting component (1) being fixedly mounted on the top of the steering component (2), a steel frame (3) being placed inside the top of the limiting component (1), characterized in that: The limiting component (1) comprises a positioning device (4) and a supporting device (5), wherein the positioning device (4) is symmetrically fixedly mounted on the top ends of both sides of the supporting device (5), wherein the positioning device (4) comprises a supporting base frame (9) and a reset spring (6), wherein the reset spring (6) is fixedly mounted inside the supporting base frame (9), wherein an inner end of the supporting base frame (9) away from the reset spring (6) is slidably plugged with a limiting sleeve rod (8), and a side end of the supporting base frame (9) away from the reset spring (6) is rotatably mounted with a first guide wheel (7), wherein the supporting device (5) comprises a positioning base frame (16) and a supporting cross frame (13), wherein the supporting The cross frame (13) is fixedly installed at an equal distance on the inner bottom end of the positioning base frame (16), and the supporting cross frame (13) is distributed in a ring shape. The bottom ends of the positioning base frame (16) are fixedly installed with a base frame (10). The top of the side end of the base frame (10) away from the supporting cross frame (13) is rotatably installed with a first gear (14). The side end of the first gear (14) away from the supporting cross frame (13) is fixedly installed with a winding wheel (15). Two connecting ropes (12) are fixedly installed on the outer ring of the winding wheel (15). The positioning base frame (16) is rotatably installed with a second wire wheel (11) at the bottom ends of both sides close to the first gear (14).

2. According to claim 1, the intelligent turning device for the steel bar skeleton of a shield segment is characterized by: The steering component (2) comprises a displacement device (17) and a positioning device (18), wherein the displacement device (17) is symmetrically slidably inserted into the inner bottom end of the positioning device (18).

3. The intelligent turning device for the steel bar skeleton of a shield segment according to claim 2 is characterized in that: The displacement device (17) comprises a welding gun (19), a welding machine (20) and a supporting chassis (21); the welding gun (19) is fixedly mounted on the welding machine (20); the welding machine (20) is fixedly mounted on the top of the supporting chassis (21); a rack (23) is fixedly mounted on the side end of the supporting chassis (21); and a key (22) is fixedly mounted at the center of the bottom end of the rack (23).

4. The intelligent turning device for the steel bar skeleton of a shield segment according to claim 3 is characterized in that: The positioning device (18) comprises a base plate (33), a support shell (32) and a drive motor (31); the support shell (32) is fixedly mounted at both ends of the top of the base plate (33); the drive motor (31) is fixedly mounted at the inner side ends of the support shell (32); a worm (34) is fixedly mounted on the side end of the drive motor (31); a second support shaft (26) is rotatably mounted on the top of the opposite side end of the support shell (32); a worm gear (30) is fixedly mounted on one end of the second support shaft (26) close to the drive motor (31); and a worm gear (30) is fixedly mounted on the other end of the second support shaft (26) away from the drive motor (31). ) is fixedly mounted on one end of the support housing (32), the outer ring of the third gear (28) is meshed with a transmission toothed belt (29), the inner bottom end of the transmission toothed belt (29) is meshed with a fourth gear (35), a first support shaft (24) is rotatably mounted between the support housing (32) and the fourth gear (35), a second gear (27) is fixedly mounted on the side end of the fourth gear (35) away from the support housing (32), a gear ring (25) is fixedly mounted on the top of the side end of the support housing (32) close to the third gear (28), and the gear ring (25) is located on the outer ring of the second support shaft (26).

5. The intelligent turning device for the steel bar skeleton of a shield segment according to claim 4 is characterized in that: The top end of the limiting sleeve rod (8) away from the reset spring (6) is connected to the top of the side end of the positioning base frame (16) close to the second wire wheel (11), the base frame (10) is fixedly mounted on the second support shaft (26), the key (22) is slidably inserted into the top end of the base plate (33), and the rack (23) is meshed with the second gear (27).

6. The intelligent turning device for the steel bar skeleton of a shield segment according to claim 5 is characterized in that: The supporting cross frame (13) is provided with square grooves at equal intervals, the first gear (14) is meshed with the gear ring (25), and the base plate (33) is provided with a slot inside the top end close to the supporting shell (32). When the positioning base frame (16) rotates, it drives the first gear (14) to rotate synchronously along the outer ring of the gear ring (25), so that the winding wheel (15) pulls the connecting rope (12).

7. The intelligent turning device for the steel bar skeleton of a shield segment according to claim 6 is characterized by: The worm wheel (30) is meshed with the worm (34); a sleeve hole is provided at the center of the side end of the limiting sleeve rod (8) away from the reset spring (6); when the rack (23) is driven in positive and negative directions by the second gear (27), the rack (23) drives the welding machine (20) to move back and forth on the base plate (33).

8. The intelligent turning device for the steel bar skeleton of a shield segment according to claim 7 is characterized by: The bottom end of the supporting chassis (21) fits with the top end of the base plate (33), the steel frame (3) is placed on the top end of the supporting cross frame (13), and the end of the connecting rope (12) away from the second guide wheel (11) is connected to the end of the limiting sleeve rod (8) close to the reset spring (6).

9. The intelligent turning device for the steel bar skeleton of a shield segment according to claim 8 is characterized by: The support base (9) is provided with a movable groove at the inner center away from the reset spring (6), and the connection ropes (12) on the winding wheel (15) are spaced 2 cm apart.

10. The intelligent turning device for the steel bar skeleton of a shield segment according to claim 9 is characterized in that: The positioning base frame (16) further comprises an anti-deflection plate (36) and a positioning side plate (37), wherein the anti-deflection plate (36) is fixedly mounted on the positioning side plate (37) at equal distances, and the positioning side plate (37) is fixedly mounted at both ends inside the positioning base frame (16).

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