Longitudinal bar arranging mechanism for clamping stirrups

Abstract

The invention relates to the technical field of box girder bottom web plate manufacturing, in particular to a stirrup clamping longitudinal bar arranging mechanism which comprises a gantry support, an arranging part, a longitudinal bar clamping part and a longitudinal bar clamping part. Comprising an outer side longitudinal bar arranging mechanism, a stirrup fixing mechanism and an inner side longitudinal bar arranging mechanism which are sequentially installed from the two ends of a gantry cross beam to the middle. The stirrup clamping and longitudinal bar arranging mechanism is stable in structure, can achieve smooth coherence and stability in the working process, is beneficial to improving the machining quality and efficiency of a box girder reinforcement cage, achieves the stirrup clamping and longitudinal bar arranging functions, and is beneficial to reducing structural deformation and guaranteeing the box girder production quality; the air cylinder is arranged outside, debugging is convenient, practicability and convenience are improved, and the safety coefficient can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of box girder bottom web manufacturing, and in particular to a stirrup clamping longitudinal reinforcement placing mechanism. Background Art

[0002] Box girders are important structures in the construction of highway and railway bridges in my country. Their standardized centralized prefabrication production method has been widely used. During the prefabrication of box girders, the processing quality and efficiency of the steel skeleton directly affect the overall performance and production progress of the box girder.

[0003] The steel skeleton is composed of longitudinal bars and stirrups. The precise placement of the longitudinal bars and the reliable clamping of the stirrups are crucial links. However, the existing longitudinal bar placement and stirrup clamping mechanisms have defects, which greatly restrict the continuity of production and the convenience of operation. In terms of clamping methods, the existing designs have the problem of insufficient reliability. For example, the longitudinal bar pressing blocks often have angular deviation when rotating under no-load, which makes it impossible for the longitudinal bars to be accurately placed in the predetermined position, thereby affecting the clamping effect of the stirrups and making it difficult to ensure the overall structural stability of the steel skeleton. This unstable clamping method will not only reduce product quality, but may also cause deformation of the steel skeleton during the subsequent concrete pouring process, endangering the structural safety of the box girder.

[0004] In addition, most of the existing longitudinal reinforcement block rotation cylinders are arranged inside the mechanism. This layout brings great inconvenience to the debugging of the longitudinal reinforcement block rotation angle, seriously reduces production efficiency, increases production costs and labor costs, and also brings many inconveniences to the daily maintenance and maintenance of the equipment.

[0005] In summary, in order to improve the processing quality and efficiency of the box girder steel frame, ensure the safety and continuity of the production process, and facilitate operation and debugging, we propose a stirrup clamping longitudinal reinforcement placement mechanism. Summary of the invention

[0006] The purpose of the present invention is to solve the deficiencies mentioned in the above background technology and provide a stirrup clamping longitudinal reinforcement placement mechanism.

[0007] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0008] A stirrup clamping longitudinal reinforcement placement mechanism, comprising a gantry support, a gantry crossbeam is movably installed above the gantry support through a gantry walking track, and further comprising:

[0009] The placing part includes an outer longitudinal reinforcement placing mechanism, a stirrup fixing mechanism and an inner longitudinal reinforcement placing mechanism which are sequentially installed along the two ends of the gantry beam toward the middle;

[0010] The inner longitudinal reinforcement placement mechanism comprises a left inner placement mechanism and a right inner placement mechanism which are installed on the gantry crossbeam and are symmetrically arranged;

[0011] The outer longitudinal reinforcement placement mechanism comprises a left outer placement mechanism and a right outer placement mechanism which are installed on the gantry crossbeam and are located on both sides of the stirrup fixing mechanism and are symmetrically arranged;

[0012] The stirrup fixing mechanism comprises a left stirrup fixing mechanism and a right stirrup fixing mechanism which are installed on the gantry crossbeam and are located on both sides of the inner longitudinal reinforcement placing mechanism and are symmetrically arranged.

[0013] Preferably, a return travel rack track is installed on the gantry crossbeam, and two inner return mounting seats are installed on the return travel rack track through two drag chain seats for horizontal movement;

[0014] The two inner placement mounting seats are used to install the left inner placement mechanism and the right inner placement mechanism respectively.

[0015] Preferably, two symmetrically arranged external return mounting seats are installed on the return travel rack track for horizontal movement via two drag chain seats, and the two external return mounting seats are used to install the left external return mechanism and the right external return mechanism respectively.

[0016] Preferably, the left stirrup fixing mechanism or the right stirrup fixing mechanism comprises a stirrup fixing mounting seat installed on the gantry crossbeam, and a short cantilever placement, a long cantilever placement and a tail end cantilever placement are sequentially connected below the stirrup fixing mounting seat;

[0017] The long placement cantilever and the tail end placement cantilever are both equipped with a clamping claw cylinder and a linear bearing block, and a guide shaft is installed at the linear bearing block.

[0018] Preferably, a clamping jaw mounting plate or a support plate mounting plate is installed at the outer end of the guide shaft, and a clamping jaw body and a stirrup support plate connected to the clamping jaw cylinder are respectively installed on the clamping jaw mounting plate and the support plate mounting plate.

[0019] Preferably, the outer longitudinal rib placement mechanism comprises a first side plate and a second side plate connected by a placement mechanism connection plate and a bearing mounting plate;

[0020] A shift fork mounting strip is installed on the surface of the first side panel, a plurality of fixed shift forks are detachably mounted on the shift fork mounting strip, and a shift fork cylinder is installed on the surface of the first side panel, an output shaft of the shift fork cylinder is installed on the shift fork mounting strip via a shift fork connecting plate, and the shift fork cylinder is used to drive the shift fork mounting strip to move.

[0021] Preferably, a shift fork limiting block and a shift fork mounting seat for limiting the shift fork mounting strip respectively are provided at the upper and lower ends of the first side plate;

[0022] The first side plate is provided with a shift fork lower limit block and a shift fork upper limit block for limiting the moving distance of the shift fork connecting plate.

[0023] Preferably, an external pull block rotating cylinder is detachably mounted on the second side plate, a rack connecting plate is mounted on the output shaft of the external pull block rotating cylinder, and a rack mounting plate is mounted on the other side of the rack connecting plate;

[0024] A longitudinal rib baffle is installed on the outer side of the bearing mounting plate, and a slider mounting plate is installed on the inner side of the bearing mounting plate by screw fastening, and a pull block rotating slider is installed on the inner side of the slider mounting plate;

[0025] One side of the rack mounting plate is provided with a pull block rotating linear guide rail for slidingly mounting on the pull block rotating slider, and the other side is provided with a pull block rotating rack.

[0026] Preferably, a plurality of bearing seats arranged along the pull block rotating linear guide rail are mounted on the bearing mounting plate, and a pull block gear shaft for engaging with the pull block rotating rack is inserted on the bearing seat;

[0027] A shaft sleeve is installed on the bearing seat, and a short pull block or a long pull block is installed coaxially with the bearing seat and the shaft sleeve on the pull block gear shaft;

[0028] The steps on both sides of the bearing seat are interference fitted with a single-row angular contact ball bearing.

[0029] Preferably, the fixed fork is in the shape of a quadrangular pyramid.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] 1. The stirrup clamping and longitudinal reinforcement placement mechanism has a stable structure and can achieve smooth, coherent and stable movements during operation, which is beneficial to improving the processing quality and efficiency of the box girder steel skeleton, realizing the functions of stirrup clamping and longitudinal reinforcement placement, and is beneficial to reducing structural deformation and ensuring the production quality of the box girder;

[0032] 2. Placing the cylinder outside is convenient for debugging, which improves practicality and convenience and can increase the safety factor. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0034] Figure 1 It is a front view of the overall structure of the present invention;

[0035] Figure 2 It is a top view of the overall structure of the present invention;

[0036] Figure 3 This is one of the schematic diagrams of the outer longitudinal reinforcement placement mechanism of the present invention;

[0037] Figure 4 This is the second schematic diagram of the outer longitudinal reinforcement placement mechanism of the present invention;

[0038] Figure 5 This is one of the exploded views of the outer longitudinal reinforcement placement mechanism of the present invention;

[0039] Figure 6 It is a schematic cross-sectional view of the outer longitudinal reinforcement placement mechanism of the present invention;

[0040] Figure 7 This is one of the schematic diagrams of the inner longitudinal reinforcement placement mechanism of the present invention;

[0041] Figure 8 This is the second schematic diagram of the inner longitudinal reinforcement placement mechanism of the present invention;

[0042] Fig. 9 It is a schematic diagram of the stirrup fixing mechanism of the present invention.

[0043] The meaning of each number in the figure is:

[0044] 1. Gantry support; 2. Gantry crossbeam; 3. Left outer placement mechanism; 4. Left inner placement mechanism; 5. Right inner placement mechanism; 6. Right outer placement mechanism; 7. Left stirrup fixing mechanism; 8. Right stirrup fixing mechanism; 9. Inner placement mounting seat; 10. Outer placement mounting seat;

[0045] 11. Drag chain seat; 12. Crossbeam travel motor; 13. Place travel motor; 14. Crossbeam travel gear; 15. Place travel rack track; 16. Gantry travel rack; 17. Stirrup fixed mounting seat; 18. Gantry travel track; 19. Placement mechanism connection plate; 20. First side plate; 21. Fork mounting seat; 22. Fork cylinder; 23. Fork lower limit block; 24. Fork connecting plate; 25. Fork upper limit block; 26. Fork limit block; 27. Fixed fork; 28. Fork mounting strip; 29. ​​Second side plate; 30. Bearing mounting plate;

[0046] 31. Longitudinal rib baffle; 32. External pull block rotating cylinder; 33. Rack connecting plate; 34. Short pull block; 35. Long pull block; 36. Rack mounting plate; 37. Slider mounting plate; 38. Bearing seat; 39. Bushing; 40. Pull block rotating slider;

[0047] 41. Pull block rotating linear guide; 42. Pull block rotating rack; 43. Pull block gear shaft; 44. Single row angular contact ball bearing; 45. Internal placement of pull block rotating cylinder; 46. Third side plate; 47. Fourth side plate; 48. Placement of long cantilever; 49. Placement of short cantilever; 50. Placement of tail end cantilever;

[0048] 51. Gripper mounting plate; 52. Placement of the gripper body; 53. Support plate mounting plate; 54. Stirrup support plate; 55. Oil pressure buffer; 56. Linear bearing block; 57. Guide shaft; 58. Gripper cylinder. DETAILED DESCRIPTION

[0049] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0050] See also Figure 1-9 The present invention describes the above technical solution in detail through the following embodiments:

[0051] The stirrup clamping longitudinal reinforcement placement mechanism of this embodiment is as follows Figure 1 and Figure 2 The structure shown specifically includes a gantry support 1, on which a meshing beam travel gear 14 and a gantry travel rack 16 are installed, and the beam travel gear 14 is driven to rotate by a beam travel motor 12, and a gantry beam 2 is installed above the gantry support 1 through a gantry travel track 18, and the gantry beam 2 is driven to move along the gantry travel track 18 by the beam travel motor 12. This part belongs to the existing gantry crane movement, so it will not be described in detail; specifically, it also includes:

[0052] Placement department, such as Figure 1 The position relationship includes an outer longitudinal reinforcement placing mechanism, a stirrup fixing mechanism and an inner longitudinal reinforcement placing mechanism which are sequentially installed along the two ends of the gantry beam 2 toward the middle; wherein the inner longitudinal reinforcement placing mechanism includes a left inner placing mechanism 4 and a right inner placing mechanism 5 symmetrically installed on the gantry beam 2; the outer longitudinal reinforcement placing mechanism includes a left outer placing mechanism 3 and a right outer placing mechanism 6 symmetrically installed on the gantry beam 2; the stirrup fixing mechanism includes a left stirrup fixing mechanism 7 and a right stirrup fixing mechanism 8 symmetrically installed on the gantry beam 2.

[0053] In this embodiment, a rack rail 15 for moving along the gantry beam 2 is installed on the gantry beam 2, and a travel motor 13 is installed; Figure 1In the structure shown, two inner return mounting seats 9 are installed on the return travel rack rail 15 for horizontal movement through two drag chain seats 11, and a left inner return mechanism 4 and a right inner return mechanism 5 are symmetrically installed on the two inner return mounting seats 9; and on the outer sides of the left inner return mechanism 4 and the right inner return mechanism 5, two outer return mounting seats 10 are installed on the return travel rack rail 15 for horizontal movement through two drag chain seats 11, and in this embodiment, a left outer return mechanism 3 and a right outer return mechanism 6 are respectively installed on the two outer return mounting seats 10.

[0054] Reference Figure 3-Figure 6 As shown, the specific structure of the left outer placement mechanism 3 and the right outer placement mechanism 6 of this embodiment includes a first side plate 20 and a second side plate 29 connected by a placement mechanism connecting plate 19 and a bearing mounting plate 30; Figure 3 In the structure shown, a fork mounting strip 28 is installed on the surface of the first side plate 20, and a fixed fork 27 is detachably mounted on the fork mounting strip 28; in this embodiment, the fixed fork 27 is in the shape of a quadrangular pyramid, and its four edges are chamfered to obtain a smooth and continuous surface, which can reduce the contact area and resistance with the longitudinal reinforcement when the fixed fork 27 extends into the longitudinal reinforcement of the wire, thereby avoiding the problem that the fixed fork 27 presses against the longitudinal reinforcement and causes the process to be stuck or stopped.

[0055] The first side plate 20 is provided with a shift fork cylinder 22. Figure 3 The position relationship is that the output shaft of the shift fork cylinder 22 is installed on the shift fork mounting bar 28 through the shift fork connecting plate 24. The extension and retraction of the output shaft of the shift fork cylinder 22 can drive the shift fork mounting bar 28 to move, and then the position relationship of the fixed shift fork 27 can be adjusted; it should be noted that in order to limit its moving path and adjustment range, two shift fork limit blocks 26 and a shift fork mounting seat 21 for limiting the shift fork mounting bar 28 respectively are provided at the upper and lower ends of the first side plate 20, and the shift fork mounting seat 21 is separately installed with a fixed shift fork 27 as a reference, and the remaining fixed shift forks 27 will move between the two shift fork limit blocks 26 along the shift fork mounting bar 28; a shift fork lower limit block 23 and a shift fork upper limit block 25 for limiting the moving distance of the shift fork connecting plate 24 are installed on the first side plate 20.

[0056] like Figure 4 and Figure 5 As shown in the structure, in this embodiment, an external pull block rotating cylinder 32 is detachably mounted on the second side plate 29, and a rack connecting plate 33 is mounted on the output shaft of the external pull block rotating cylinder 32, and a rack mounting plate 36 is mounted on the other side of the rack connecting plate 33; it should be noted that, as Figure 4 and Figure 5According to the structure shown in the figure, the external pull block rotating cylinder 32 of the device is arranged on the outside of the plate body, which improves the practicality and is convenient for quickly adjusting the external pull block rotating cylinder 32 when the pull block is offset, and the operability is stronger; specifically, a longitudinal rib baffle 31 is installed on the outside of the bearing mounting plate 30, and a slider mounting plate 37 is fastened to the inner side of the bearing mounting plate 30 by screws, and a pull block rotating slider 40 is installed on the inner side of the slider mounting plate 37; a pull block rotating linear guide 41 for slidingly mounting on the pull block rotating slider 40 is provided on one side of the rack mounting plate 36, and a pull block rotating rack 42 is installed on the other side, a plurality of bearing seats 38 arranged along the pull block rotating linear guide 41 are installed on the bearing mounting plate 30, and a pull block gear shaft 43 for meshing with the pull block rotating rack 42 is inserted on the bearing seat 38, and the rotation of the pull block gear shaft 43 can be realized by extending and retracting the output shaft of the external pull block rotating cylinder 32 and cooperating with the meshing structure.

[0057] It should be noted that a shaft sleeve 39 is installed on the bearing seat 38, and a short pull block 34 or a long pull block 35 is installed coaxially with the pull block gear shaft 43 through the bearing seat 38 and the shaft sleeve 39; in this embodiment, the outer edges of the short pull block 34 or the long pull block 35 are chamfered, so that the short pull block 34 and the long pull block 35 can be inserted into the longitudinal reinforcement interval more smoothly; and a single-row angular contact ball bearing 44 is interference-fitted on each of the steps on both sides of the bearing seat 38, which can reduce the interference between the stirrup placement mechanism and the longitudinal reinforcement when it is separated from the longitudinal reinforcement; in addition, Figure 5 As shown, the pull block gear shaft 43 can form an integrated locking structure with the bearing seat 38, the shaft sleeve 39, the short pull block 34 or the long pull block 35 through screws, that is, the offset problem caused by the inertia after the pull block rotates can be greatly reduced, and the internal single-row angular contact ball bearing 44 cooperates with the bearing seat 38, which can reduce the probability of shaking of the pull block gear shaft 43 and improve the accuracy.

[0058] In this embodiment, Figure 1 As shown in the positional relationship, the left outer placement mechanism 3 and the left inner placement mechanism 4, the right inner placement mechanism 5 and the right outer placement mechanism 6 are in a central symmetric relationship, wherein the left outer placement mechanism 3, the right outer placement mechanism 6 and the left inner placement mechanism 4, the right inner placement mechanism 5 are mainly different in that the fixed shift fork 27 is not provided. Figure 7 and Figure 8 In the structure shown, the inner pull block rotating cylinder 45, the third side plate 46, and the fourth side plate 47 replace the outer pull block rotating cylinder 32, the second side plate 29, and the first side plate 20 respectively, and their functions and other structures are the same.

[0059] In this embodiment, the left stirrup fixing mechanism 7 or the right stirrup fixing mechanism 8 includes a stirrup fixing mounting seat 17 installed on the gantry crossbeam 2, such as Figure 1 and Fig. 9In the structure shown, a short cantilever 49, a long cantilever 48 and a rear end cantilever 50 are connected in sequence below the stirrup fixing mounting seat 17; a clamping cylinder 58 and a linear bearing block 56 are installed on the long cantilever 48 and the rear end cantilever 50, and a guide shaft 57 is slidably installed on the linear bearing block 56; specifically, a clamping jaw mounting plate 51 is installed on the outer end of the guide shaft 57 on the long cantilever 48, and a support plate mounting plate 53 is installed on the outer end of the guide shaft 57 on the rear end cantilever 50, wherein the clamping jaw mounting plate 51 and the support plate mounting plate 53 are respectively installed with a clamping jaw body 52 connected to the clamping jaw cylinder 58 and a stirrup support plate 54, and in this embodiment, an oil pressure buffer 55 for buffering is fixedly installed on the rear end cantilever 50 by a nut.

[0060] It should be explained that the stirrup clamping and longitudinal reinforcement placement mechanism of the present embodiment has the following working principles of reinforcement clamping and longitudinal reinforcement placement: first, the gantry beam 2 is driven by the beam travel motor 12 to move along the gantry travel track 18, and at the same time, the placement travel motor 13 drives the left outer placement mechanism 3 and the right outer placement mechanism 6 to move to both sides to a safe position through the drag chain seat 11, and the left inner placement mechanism 4 and the right inner placement mechanism 5 are retracted to the middle to a safe position; the clamping jaw cylinder 58 will drive the placement clamping jaw body 52 and the stirrup support plate 54 to retract, the fork cylinder 22 to retract, and the fixed fork 27 to drop to the ready position, and the outer placement pull block rotating cylinder 32 to retract, drive the rack mounting plate 36 to move, and rotate the short pull block 34 and the long pull block 35 to a horizontal state through the gear rack transmission;

[0061] After the gantry beam 2 moves to the stirrup intersection position, the clamping claw cylinder 58 drives the placement clamping claw body 52 and the stirrup support plate 54 to extend to clamp the joined stirrups; after the stirrup intersection action is completed, the gantry beam 2 moves forward to the stirrup welding position. After the gantry beam 2 moves forward to a safe position, the outer longitudinal reinforcement placement mechanism moves closer to the middle, and the inner longitudinal reinforcement placement mechanism separates to both sides; during the process, the fixed fork 27 and the pull block will be inserted into the bottom web longitudinal reinforcement interval respectively. After all the placement mechanism pull blocks have completely passed the longitudinal reinforcement, the outer placement pull block rotating cylinder 32 extends Out, drive the rack mounting plate 36 to move, rotate the short pull block 34 and the long pull block 35 into a vertical state through the gear rack transmission, and extend the fork cylinder 22 to raise the fixed fork 27 to the working position; after completing the action, the outer wire placement mechanism moves 3-5cm to both sides, and the inner wire placement mechanism moves 3-5cm to the middle, so that the wire longitudinal reinforcement and the three-in-one stirrup are close together. After welding is completed, the above clamping action process can be reversed once. After loosening the stirrup, the gantry beam 2 can move backward to start the next stirrup placement cycle.

[0062] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0063] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the attached claims rather than the above description, and it is intended that all changes that fall within the meaning and scope of the equivalent elements of the claims are included in the present invention.

Claims

1. A stirrup clamping and longitudinal reinforcement placement mechanism, comprising a gantry support (1), a gantry crossbeam (2) being movably mounted above the gantry support (1) via a gantry walking track (18), characterized in that: Also includes: The placing part comprises an outer longitudinal reinforcement placing mechanism, a stirrup fixing mechanism and an inner longitudinal reinforcement placing mechanism which are sequentially installed along the two ends of the gantry cross beam (2) toward the middle; The inner longitudinal reinforcement placement mechanism comprises a left inner placement mechanism (4) and a right inner placement mechanism (5) which are installed on the gantry crossbeam (2) and are symmetrically arranged; The outer longitudinal reinforcement placement mechanism comprises a left outer placement mechanism (3) and a right outer placement mechanism (6) which are installed on the gantry crossbeam (2) and are located on both sides of the stirrup fixing mechanism and are symmetrically arranged; The stirrup fixing mechanism comprises a left stirrup fixing mechanism (7) and a right stirrup fixing mechanism (8) which are installed on the gantry crossbeam (2) and are located on both sides of the inner longitudinal reinforcement placement mechanism and are symmetrically arranged.

2. The stirrup clamping longitudinal reinforcement placement mechanism according to claim 1, characterized in that: The gantry crossbeam (2) is provided with a return travel rack track (15), and the return travel rack track (15) is provided with two inner return mounting seats (9) which are horizontally movable via two drag chain seats (11); The two inner placement mounting seats (9) are used to respectively install the left inner placement mechanism (4) and the right inner placement mechanism (5).

3. The stirrup clamping longitudinal reinforcement placement mechanism according to claim 2, characterized in that: Two symmetrically arranged external placement mounting seats (10) are installed on the placement running rack track (15) for horizontal movement via two drag chain seats (11), and the two external placement mounting seats (10) are used to install the left external placement mechanism (3) and the right external placement mechanism (6), respectively.

4. The stirrup clamping longitudinal reinforcement placement mechanism according to claim 1, characterized in that: The left stirrup fixing mechanism (7) or the right stirrup fixing mechanism (8) comprises a stirrup fixing mounting seat (17) mounted on the gantry cross beam (2), and a placement short cantilever (49), a placement long cantilever (48) and a placement tail end cantilever (50) are sequentially connected below the stirrup fixing mounting seat (17); The long placement cantilever (48) and the tail placement cantilever (50) are both installed with a clamping claw cylinder (58) and a linear bearing block (56), and the linear bearing block (56) is installed with a guide shaft (57).

5. The stirrup clamping longitudinal reinforcement placement mechanism according to claim 4, characterized in that: The outer end of the guide shaft (57) is mounted with a clamping jaw mounting plate (51) or a support plate mounting plate (53), and the clamping jaw mounting plate (51) and the support plate mounting plate (53) are respectively mounted with a clamping jaw body (52) and a stirrup support plate (54) connected to the clamping jaw cylinder (58).

6. The stirrup clamping longitudinal reinforcement placement mechanism according to claim 3, characterized in that: The outer longitudinal rib placement mechanism comprises a first side plate (20) and a second side plate (29) connected via a placement mechanism connection plate (19) and a bearing mounting plate (30); A shift fork mounting strip (28) is mounted on the surface of the first side plate (20), a plurality of fixed shift forks (27) are detachably mounted on the shift fork mounting strip (28), and a shift fork cylinder (22) is mounted on the surface of the first side plate (20), an output shaft of the shift fork cylinder (22) is mounted on the shift fork mounting strip (28) via a shift fork connecting plate (24), and the shift fork cylinder (22) is used to drive the shift fork mounting strip (28) to move.

7. The stirrup clamping longitudinal reinforcement placement mechanism according to claim 6, characterized in that: The first side plate (20) is provided with a shift fork limiting block (26) and a shift fork mounting seat (21) for respectively limiting the shift fork mounting strip (28); The first side plate (20) is provided with a shift fork lower limit block (23) and a shift fork upper limit block (25) for limiting the moving distance of the shift fork connecting plate (24).

8. The stirrup clamping longitudinal reinforcement placement mechanism according to claim 6, characterized in that: The second side plate (29) is detachably mounted with an external pull block rotating cylinder (32), the output shaft of the external pull block rotating cylinder (32) is mounted with a rack connecting plate (33), and the other side of the rack connecting plate (33) is mounted with a rack mounting plate (36); A longitudinal rib block strip (31) is installed on the outer side of the bearing mounting plate (30), and a slider mounting plate (37) is installed on the inner side of the bearing mounting plate (30) by screw fastening, and a pull block rotating slider (40) is installed on the inner side of the slider mounting plate (37); A pull block rotating linear guide rail (41) for slidingly mounting on the pull block rotating slider (40) is provided on one side of the rack mounting plate (36), and a pull block rotating rack (42) is installed on the other side.

9. The stirrup clamping longitudinal reinforcement placement mechanism according to claim 8, characterized in that: The bearing mounting plate (30) is provided with a plurality of bearing seats (38) arranged along the pull block rotating linear guide rail (41), and the bearing seats (38) are provided with a pull block gear shaft (43) for meshing with the pull block rotating gear rack (42); A shaft sleeve (39) is installed on the bearing seat (38), and a short pull block (34) or a long pull block (35) is installed coaxially on the pull block gear shaft (43) passing through the bearing seat (38) and the shaft sleeve (39); The steps on both sides of the bearing seat (38) are each interference-fitted with a single-row angular contact ball bearing (44).

10. The stirrup clamping longitudinal reinforcement placement mechanism according to claim 6, characterized in that: The fixed shift fork (27) is in the shape of a quadrangular pyramid.

Images