Annular main reinforcement positioning device

Abstract

The invention discloses an annular main reinforcement positioning device, and relates to the technical field of construction instruments. A support base; a control box seat; the supporting base and the control box base are connected through a hydraulic ejector rod. The rotating arms are divided into two groups, and the two groups of rotating arms are arranged on the control box seat through first hinge shafts; the first driving assembly is arranged on the control box seat; the clamping and positioning mechanism is arranged at the end, away from the control box base, of the rotating arm. According to the steel bar binding device, the two sets of rotating arms which can be opened through relative rotation are arranged, the rotating arms are arranged on the track plate, and therefore before steel bars are bound, only the track plate needs to be aligned to the center position of a tunnel, and then annular main steel bars are clamped through the clamping and positioning mechanisms on the rotating arms; and the rotating arm is centered and positioned in the process of rotating towards the two sides of the rotating arm, so that multi-point paying-off positioning and additional fixing structures do not need to be implemented, and the construction efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of construction equipment, and in particular to a circumferential main reinforcement positioning device. Background Art

[0002] Circumferential main reinforcement is a form of reinforcement used in arc-shaped concrete structures, which is mainly used in tunnel construction projects. During the tunnel construction process, the staggered binding arrangement of circumferential main reinforcement and longitudinal reinforcement is used to form an arc-shaped reinforcement cage, which is then cast into a concrete arch structure. Since the arch top is a weak point, the reinforcement needs to be tied from the top. In order to accurately position the circumferential main reinforcement, multi-point layout measurement is required, and a positioning structure for fixing the reinforcement is set at the arch top. These steps make the overall binding work cumbersome and are not conducive to improving construction efficiency.

[0003] In view of this, the present invention is designed to solve the above problems.

[0004] The above content is only used to assist in understanding the technical solution of the present invention and does not mean that the above content is the closest prior art. Summary of the Invention

[0005] The purpose of the present invention is to solve the above-mentioned deficiencies and provide a circumferential main reinforcement positioning device.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] The circumferential main reinforcement positioning device includes a track plate, which is a detachable splicing structure; a support base, which is arranged on the track plate through movable wheels on both sides for walking; a control box seat, which is arranged on the support base, and the support base and the control box seat are connected by a hydraulic push rod; a rotating arm, which is in two groups, and the two groups of rotating arms are arranged on the control box seat through a first hinge shaft; a first drive assembly, which is arranged on the control box seat and is used to drive the two groups of rotating arms to rotate synchronously relative to each other; a clamping and positioning mechanism, which is arranged at one end of the rotating arm away from the control box seat, and is used to clamp the circumferential main reinforcement and cooperate with the rotation of the rotating arm to center the main reinforcement.

[0008] Furthermore, the first drive assembly includes a threaded screw arranged on the control box seat, a screw sleeve block threadedly sleeved on the threaded screw, a limiting slide rod arranged on the control box seat and slidably sleeved with the screw sleeve block, and a first connecting rod with one end hinged on the rotating arm and the other end hinged on the screw sleeve block.

[0009] Furthermore, the clamping and positioning mechanism includes a fixed column head arranged at the end of the rotating arm, a clamping assembly arranged on the fixed column head for clamping the annular main reinforcement, a second driving assembly arranged on the fixed column head for driving the clamping assembly, a locking assembly arranged on one side of the clamping assembly for clamping and locking the annular main reinforcement, and a triggering assembly arranged on the other side of the clamping assembly for triggering the locking assembly.

[0010] Furthermore, a first mounting bracket is provided at the end of the fixed column head, and the clamping assembly includes a second hinge shaft movably provided on the first mounting bracket and two sets of clamping plates provided on the second hinge shaft; a mounting opening is provided between the second hinge shafts, and a clamping roller is rotatably provided inside the mounting opening for clamping the main reinforcement from both sides of the ring.

[0011] Furthermore, the second driving assembly includes a fixed base plate arranged on the fixed column head, an electrically-controlled telescopic rod arranged on the fixed base plate, and a first transmission unit arranged between the electrically-controlled telescopic rod and the clamping plate; a movable slot is provided on the upper part of the fixed column head, and first limiting sliding grooves are provided on the side walls on both sides of the movable slot; the first transmission unit includes a collar slidably sleeved on the outer side of the fixed column head, a limiting sliding arm arranged on the collar and sliding within the movable slot, a second mounting bracket arranged on the limiting sliding arm and slidingly engaged at both ends in the first limiting sliding groove, a movable shaft rotatably arranged on the second mounting bracket, and a second connecting rod with one end being rotatably connected to the movable shaft and the other end being hinged to the clamping plate.

[0012] Furthermore, the locking assembly includes a co-located clamping plate arranged at the side end of the clamping plate, a blocking unit for limiting sliding in the accommodating cavity opened on the co-located clamping plate, and a first spring arranged between the blocking unit and the side wall of the accommodating cavity.

[0013] Furthermore, the trigger assembly includes a supporting seat arranged on the electric telescopic rod, a sliding rail plate arranged on the supporting seat, two groups of feedback clamps that slide relatively and synchronously on the sliding rail plate, a second spring arranged between the two groups of feedback clamps, and a second transmission unit arranged between the feedback clamps and the locking assembly; the opposite sides of the feedback clamps are arranged as inclined surfaces to form a V-shaped groove between the two.

[0014] Furthermore, a second limiting slot is provided on the sliding rail plate, a first limiting slider which is slidably engaged with the second limiting slot is provided at the bottom end of the feedback clamping block, and the second spring is provided between the first limiting sliders.

[0015] Furthermore, the anti-reverse unit includes an installation box that slides within the accommodating cavity and is connected to a first spring, a locking plate that is rotatably arranged within the installation box and has one end extending from a side opening opened on the installation box, a torsion spring arranged between the locking plate and the side wall of the installation box, and a limit block arranged in the installation box for limiting the rotation of the locking plate.

[0016] Furthermore, a card interface is provided at the bottom of the isotropic clamp, and a third limiting sliding groove is provided on both side walls of the card interface. The second transmission unit includes a first wedge block arranged at the bottom of the anti-reversal unit, a second wedge block that is clamped in the third limiting sliding groove at both ends by a second limiting slider and is adapted to the first wedge block, a third wedge block arranged at the bottom of the second wedge block, and a locking plate arranged on the feedback clamp for adapting and pushing the third wedge block.

[0017] Compared with the prior art, the beneficial effects of this solution are as follows: the present invention provides two sets of rotating arms that can be relatively rotated and opened, and the rotating arms are provided on the track plate, so that before the steel bars are tied, it is only necessary to align the track plate to the center of the tunnel, and then the annular main reinforcement is clamped by the clamping and positioning mechanism on the rotating arm, and it is centered during the rotation of the rotating arm, thereby eliminating the need for multi-point layout positioning and the setting of additional fixed structures, thereby improving construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 This is a three-dimensional schematic diagram of a state where a circumferential main reinforcement is clamped according to an embodiment of the present invention;

[0020] Figure 2 is a front perspective schematic diagram of an embodiment of the present invention;

[0021] Figure 3 is a side perspective schematic diagram of an embodiment of the present invention;

[0022] Figure 4 It is a partial schematic diagram of the lower structure of an embodiment of the present invention;

[0023] Figure 5 It is a partial schematic diagram of the upper structure of an embodiment of the present invention;

[0024] Figure 6 1 is a schematic front view of the upper structure of the rotating arm in an embodiment of the present invention;

[0025] Figure 7 is a schematic side view of the upper structure of the rotating arm in an embodiment of the present invention;

[0026] Figure 8 2 is a schematic structural diagram of a clamping and positioning mechanism according to an embodiment of the present invention;

[0027] Figure 9 Schematic diagram of the cooperation between the clamping assembly and the fixed column head in an embodiment of the present invention;

[0028] Figure 10 This is a schematic structural diagram of a fixed column head according to an embodiment of the present invention;

[0029] Figure 11 is a structural diagram of a first transmission unit in an embodiment of the present invention;

[0030] Figure 12 is a disassembled schematic diagram of a trigger assembly in an embodiment of the present invention;

[0031] Figure 13 is a schematic structural diagram of a clamping assembly in an embodiment of the present invention;

[0032] Figure 14 is a schematic diagram of the structural coordination of the locking assembly in an embodiment of the present invention;

[0033] Figure 15 2 is a schematic cross-sectional view of a co-located splint according to an embodiment of the present invention;

[0034] Figure 16 Schematic diagram of the internal structure of the splint in the embodiment of the present invention;

[0035] Figure 17 2 is a schematic diagram of the internal structure of the installation box according to an embodiment of the present invention;

[0036] Figure 18 Schematic diagram of the cooperation between the locking plate and the locking assembly in an embodiment of the present invention.

[0037] In the figure: 1. track plate; 11. support base; 12. movable wheel; 13. control box seat; 14. hydraulic push rod; 2. rotating arm; 21. first hinge axis; 3. screw rod; 31. screw rod sleeve; 32. limit slide; 33. first connecting rod; 4. fixed column head; 41. first mounting bracket; 42. second hinge axis; 43. clamping plate; 44. mounting port; 45. clamping roller; 5. fixed bottom plate; 51. electric control telescopic rod; 52. movable notch; 53. first limit slide; 54. collar; 55. limit slide; 56. first Second mounting frame; 57, movable shaft; 58, second connecting rod; 6, co-position clamp; 61, accommodating chamber; 62, first spring; 63, mounting box; 64, side extension; 65, locking buckle plate; 66, torsion spring; 67, limit block; 7, supporting seat; 71, sliding rail plate; 72, feedback clamp; 73, second spring; 74, second limit slide; 75, first limit slider; 8, card interface; 81, third limit slide; 82, first wedge block; 83, second limit slider; 84, second wedge block; 85, third wedge block; 86, locking plate. DETAILED DESCRIPTION

[0038] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not 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 of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0039] like Figure 1-18The circumferential main reinforcement positioning device shown includes a track plate 1, which is a detachable splicing structure; a support base 11, which is arranged on the track plate 1 for walking through movable wheels 12 on both sides; a control box seat 13, which is arranged on the support base 11, and the support base 11 and the control box seat 13 are connected by a hydraulic push rod 14; a rotating arm 2, which is in two groups, and the two groups of rotating arms 2 are arranged on the control box seat 13 through a first hinge shaft 21; a first drive assembly, which is arranged on the control box seat 13, and is used to drive the two groups of rotating arms 2 to rotate synchronously relative to each other; a clamping and positioning mechanism, which is arranged at one end of the rotating arm 2 away from the control box seat 13, and is used to clamp the circumferential main reinforcement and cooperate with the rotation The rotation of the arm 2 is used to center the main reinforcement. When using the device, it is only necessary to position and lay out the track plate 1 so that it can be centered in the center of the tunnel, and then place the support base 11 on the track plate 1. The support base 11 is locked in a specific position through the locking structure on the track plate 1. Then, scaffolding is set up on both sides of the track plate 1 to form a high platform for workers to operate, and the reversing main reinforcement is transported to the high platform for placement. When it is necessary to tie the steel bars, a single annular main reinforcement is placed on the clamping and positioning mechanism on the rotating arm 2 for clamping, and then the first driving component is started to rotate the rotating arm 2 relatively outward and expand, and the clamping and positioning mechanism is used to clamp the steel bars. Surface sliding, when the clamping and positioning mechanism on one side slides to one end of the annular main reinforcement, it can lock the surface of the reinforcement so that it will not slide relative to the surface of the reinforcement. At this time, when the rotating arm 2 continues to rotate and unfold synchronously, the clamping and positioning mechanism on the locking side will pull the reinforcement to one side, and the clamping and positioning mechanism on the other side will still slide relative to the surface of the reinforcement until it slides to the other end position of the reinforcement. In this working process, the annular main reinforcement is aligned with the track plate 1, that is, aligned with the arch position of the tunnel. At this time, the hydraulic jack 14 is driven to lift the control box seat 13, so that the annular main reinforcement after centering is located at the arch and staggered with the longitudinal reinforcement. position, and then the workers complete the binding and fixing of the steel bars from both sides. After completing the binding of one group of steel bars, the movable wheel 12 at the bottom of the support base 11 is unlocked to make it movable on the track plate 1, thereby driving the entire device to move forward. By setting a scale on the track plate 1, it is convenient to move the entire device by the same distance as needed for positioning, and then the next group of circumferential main bars are tied, so that it can conveniently realize the positioning of the steel bar spacing, and its centering position will not be offset, and no additional measurement and layout are required. At the same time, the splicable structural design of the track plate 1 can extend the activity route of the device, thereby avoiding the tedious measurement and positioning work to complete the binding in sequence within a larger range.

[0040] In one embodiment, the first drive assembly includes a threaded screw 3 arranged on the control box seat 13, a screw sleeve block 31 threadedly sleeved on the threaded screw 3, a limiting slide rod 32 arranged on the control box seat 13 and slidably sleeved with the screw sleeve block 31, and a first connecting rod 33 hinged at one end to the rotating arm 2 and hinged at the other end to the screw sleeve block 31. Through the rotation of the threaded screw 3, it drives the screw sleeve block 31 to move up and down, and then the first connecting rod 33 can drive the rotating arm 2 to complete the rotation movement.

[0041] In one embodiment, the clamping and positioning mechanism includes a fixed column head 4 provided at the end of the rotating arm 2, a clamping assembly provided on the fixed column head 4 for clamping the annular main reinforcement, a second driving assembly provided on the fixed column head 4 for driving the clamping assembly, a locking assembly provided on one side of the clamping assembly for clamping and locking the annular main reinforcement, and a triggering assembly provided on the other side of the clamping assembly for triggering the locking assembly. The clamping and positioning mechanism drives the clamping assembly through the second driving assembly so that it clamps the steel bar first. When the rotating arm 2 rotates relative to each other, the clamping assembly can slide relative to the surface of the annular main reinforcement. Since the steel bar is not in the center position at this time, when the rotating arm 2 slides, the triggering assembly in the clamping and positioning mechanism on one side will trigger the locking assembly when it moves to the end of the steel bar, so that it locks and clamps the surface of the steel bar, so that the clamping and positioning mechanism can no longer slide relative to the surface of the steel bar, and then the clamping and positioning mechanism on the end of the steel bar that has slid will pull the steel bar to move synchronously, and the other side will Continue to slide relative to the steel bar, so that the middle part of the annular main bar gradually approaches the center position, until the clamping and positioning mechanism sliding relative to the steel bar on the other side moves to the end of the steel bar, and the trigger component at its upper end simultaneously triggers the locking component to lock the steel bar, so that the clamping and positioning mechanisms at both ends of the steel bar cannot slide relative to the steel bar. Since the two sets of rotating arms 2 rotate synchronously, the two are deployed in symmetrical positions, and then when the clamping and positioning mechanisms at their upper ends are located on both sides of the steel bar, the annular main bar is already located at the center axis position of the track plate 1. It should be additionally explained that a gear group in the prior art is arranged inside the control box seat 13, so that the motor inside it can increase the transmission force to the threaded screw 3 through the gear group, and an overload protection structure is provided on the gear group and the motor. When the two sets of clamping and positioning mechanisms clamp and lock the two ends of the annular main bar, the overload protection structure inside the control box seat 13 will be activated, thereby stopping the threaded screw 3 from rotating and the rotating arm 2 stops rotating to both sides.

[0042] In one embodiment, a first mounting bracket 41 is provided at the end of the fixed column head 4, and the clamping assembly includes a second hinge shaft 42 movably provided on the first mounting bracket 41 and two sets of clamping plates 43 provided on the second hinge shaft 42; a mounting opening 44 is provided between the second hinge shafts 42, and a clamping roller 45 is rotatably provided inside the mounting opening 44 for clamping it from both sides of the main reinforcement in the ring direction; the second driving assembly includes a fixed base plate 5 provided on the fixed column head 4, an electrically controlled telescopic rod 51 provided on the fixed base plate 5, and a first transmission unit provided between the electrically controlled telescopic rod 51 and the clamping plate 43; a movable notch 52 is provided on the upper part of the fixed column head 4, and a first limiting slide groove 53 is provided on both side walls of the movable notch 52; the first transmission unit includes a collar 54 slidably sleeved on the outer side of the fixed column head 4, a limiting slide arm 55 provided on the collar 54 and slidingly limited in the movable notch 52, and a limiting slide arm 55 provided on the limiting slide arm 55 and slidingly engaged with the first limiting slide arm at both ends. The second mounting bracket 56 in the positioning slot 53, the movable shaft 57 rotatably arranged on the second mounting bracket 56 and the second connecting rod 58 which is hinged to the clamping plate 43 at one end and connected to the movable shaft 57 at the other end, drive the electrically controlled telescopic rod 51 to push the collar 54 to slide toward the upper end of the fixed column head 4, and then the limiting sliding arm 55 at its upper end will slide upward in the movable groove 52 and drive the second mounting bracket 56 to move synchronously. At the same time as the second mounting bracket 56 moves, it pushes the two sides of the clamping plate 43 through the second connecting rod 58 to make them relatively closed, thereby clamping the clamping plate 43 from both sides of the annular main reinforcement. At the same time, due to the setting of the clamping roller 45, the clamping plate 43 contacts the outer surface of the annular main reinforcement through the clamping roller 45, so that its sliding friction is converted into rolling friction, and then when the clamping positioning mechanism is driven to move to both sides by the rotating arm 2, the relative rolling of the clamping roller 45 and the steel bar surface enables the clamping positioning mechanism to move relative to the steel bar.

[0043] In one embodiment, the locking assembly includes a co-located splint 6 arranged at the side end of the clamping plate 43, a resistance unit that slides within a accommodating cavity 61 opened on the co-located splint 6, and a first spring 62 arranged between the resistance unit and the side wall of the accommodating cavity 61. The resistance unit includes a mounting box 63 that slides within the accommodating cavity 61 and is connected to the first spring 62, a locking plate 65 that is rotatably arranged in the mounting box 63 and one end of which extends from a side extension opening 64 opened on the mounting box 63, a torsion spring 66 arranged between the locking plate 65 and the side wall of the mounting box 63, and a mounting box 63 that is used to The limit block 67 limits the rotation of the locking plate 65, and the co-positioned splint 6 rotates synchronously with the clamping plate 43, so that when the clamping assembly clamps the two sides of the annular main reinforcement, the co-positioned splint 6 will be synchronously closed to the two sides of the steel bar. At this time, the anti-reversal unit will be pushed out of the accommodating cavity 61 by a certain distance under the action of the first spring 62, so that the locking plate 65 on it can contact the surface of the steel bar, and in the process of the clamping positioning assembly moving relative to the steel bar, the steel bar will push the anti-reversal unit to shrink into the accommodating cavity 61, so that the locking plate 65 slides relative to the surface of the steel bar, and thus will not drive the locking plate 65 to rotate.

[0044] In one embodiment, the trigger assembly includes a supporting seat 7 arranged on the electric telescopic rod 51, a sliding rail plate 71 arranged on the supporting seat 7, two groups of feedback clamps 72 that slide relatively and synchronously on the sliding rail plate 71, a second spring 73 arranged between the two groups of feedback clamps 72, and a second transmission unit arranged between the feedback clamps 72 and the locking assembly; the opposite sides of the feedback clamps 72 are set as inclined surfaces to form a V-shaped groove therebetween, a second limiting groove 74 is provided on the sliding rail plate 71, the bottom end of the feedback clamp 72 is provided with a first limiting slider 75 that is slidably engaged with the second limiting groove 74, the second spring 73 is arranged between the first limiting slider 75, and the bottom of the same-position clamp 6 is provided with a card interface 8, and the side walls of the card interface 8 are opened. A third limiting slot 81 is provided, and the second transmission unit includes a first wedge 82 arranged at the bottom of the anti-reversal unit, a second wedge 84 which is clamped in the third limiting slot 81 and slides in the upper limit position through a second limiting slider 83 at both ends and is adapted to the first wedge 82, a third wedge 85 arranged at the bottom of the second wedge 84, and a locking plate 86 arranged on the feedback clamp 72 for adapting and pushing the third wedge 85. The direction of the end of the third wedge 85 is consistent with the direction of movement of the rotating arm 2 to expand outward. When the annular main rib is placed on the clamping and positioning mechanism, it is preferentially clamped in the V-shaped slot between the two sets of feedback clamps 72, and then the feedback clamp 72 is pushed to both sides under the action of gravity, so that the locking plates 86 on both sides are away from the same position clamp 6, and then the feedback clamp 72 is pushed to both sides by the starting The electric telescopic rod 51 completes the clamping work of the clamping assembly on the annular main reinforcement in the aforementioned process, and then the rotating arm 2 drives the clamping assembly to slide to both sides of the steel bar until it slides to one end of the steel bar. At this time, the feedback clamp 72 will first disengage from the surface of the steel bar, and then the feedback clamp 72 will reset and move back under the action of the second spring 73, thereby driving the locking plate 86 to move back and engage with the third wedge 85. Since the clamping positioning mechanism slides relative to the steel bar, the steel bar surface pushes back the anti-reversal unit, causing it to drive the first wedge 82 to push the second wedge 84, and then the second wedge 84 will move downward, so that the locking buckle plate 65 cannot apply too high pressure to the steel bar surface, so that it will slide relative to the steel bar surface, and when the locking plate 86 abuts against the third wedge 85, it will push the third wedge 85. The three wedge blocks 85 move upward, and then the third wedge block 85 pushes the first wedge block 82 in reverse, causing the installation box 63 to move back a certain distance. During this process, the thrust applied by the locking plate 86 will make it difficult for the installation box 63 to be pushed by the surface of the steel bar and retract into the accommodating cavity 61, thereby increasing the pressure between the locking buckle plate 65 and the annular main reinforcement. At this time, the steel bar will drive the locking buckle plate 65 to start rotating under the action of friction, and the locking plate 86 will be stuck to the lower surface of the third wedge block 85 after a certain distance from the third wedge block 85, so that the third wedge block 85 is positioned and locked. At this time, the installation box 63 follows and is locked, and then the steel bar drives the locking buckle plate 65 to rotate through friction, and during the rotation of the locking buckle plate 65, its end gradually presses against the surface of the steel bar, thereby clamping and locking the steel bar.

[0045] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations that come within the meaning and range of equivalents of the claims be embraced therein.

Claims

1. The circumferential main reinforcement positioning device is characterized in that: include: A track plate (1), wherein the track plate (1) is a detachable splicing structure; A support base (11), wherein the support base (11) is arranged on a track plate (1) for movement via movable wheels (12) on both sides; A control box seat (13) is arranged on the support base (11), and the support base (11) and the control box seat (13) are connected via a hydraulic push rod (14); Rotating arms (2), the rotating arms (2) are in two groups, and the two groups of rotating arms (2) are arranged on the control box seat (13) through a first hinge shaft (21); A first driving assembly is provided on the control box seat (13) and is used to drive the two sets of rotating arms (2) to rotate synchronously relative to each other; The clamping and positioning mechanism is arranged at one end of the rotating arm (2) away from the control box seat (13), and is used for clamping the annular main reinforcement and cooperating with the rotation of the rotating arm (2) to center and position the main reinforcement.

2. The circumferential main reinforcement positioning device according to claim 1, characterized in that: The first driving assembly comprises a threaded screw (3) arranged on a control box seat (13), a screw sleeve block (31) threadedly sleeved on the threaded screw (3), a limiting slide rod (32) arranged on the control box seat (13) and slidably sleeved on the screw sleeve block (31), and a first connecting rod (33) having one end hinged on the rotating arm (2) and the other end hinged on the screw sleeve block (31).

3. The circumferential main reinforcement positioning device according to claim 1 or 2, characterized in that: The clamping and positioning mechanism comprises a fixed column head (4) arranged at the end of a rotating arm (2), a clamping assembly arranged on the fixed column head (4) for clamping the annular main reinforcement, a second driving assembly arranged on the fixed column head (4) for driving the clamping assembly, a locking assembly arranged on one side of the clamping assembly for clamping and locking the annular main reinforcement, and a triggering assembly arranged on the other side of the clamping assembly for triggering the locking assembly.

4. The circumferential main reinforcement positioning device according to claim 3, characterized in that: A first mounting frame (41) is provided at the end of the fixed column head (4), and the clamping assembly comprises a second hinge shaft (42) movably provided on the first mounting frame (41) and two sets of clamping plates (43) provided on the second hinge shaft (42); A mounting opening (44) is provided between the second hinge shafts (42), and a clamping roller (45) is rotatably provided inside the mounting opening (44) for clamping the main rib from both sides thereof.

5. The circumferential main reinforcement positioning device according to claim 4, characterized in that: The second drive assembly comprises a fixed base plate (5) arranged on the fixed column head (4), an electrically controlled telescopic rod (51) arranged on the fixed base plate (5), and a first transmission unit arranged between the electrically controlled telescopic rod (51) and the clamping plate (43); A movable notch (52) is provided on the upper portion of the fixed column head (4), and first limiting sliding grooves (53) are provided on both side walls of the movable notch (52); The first transmission unit comprises a collar (54) slidably sleeved on the outside of the fixed column head (4), a limiting sliding arm (55) arranged on the collar (54) and slidingly limited in the movable notch (52), a second mounting frame (56) arranged on the limiting sliding arm (55) and slidably engaged at both ends in the first limiting sliding groove (53), a movable shaft (57) rotatably arranged on the second mounting frame (56), and a second connecting rod (58) having one end rotatably connected to the movable shaft (57) and the other end hinged to the clamping plate (43).

6. The circumferential main reinforcement positioning device according to claim 3 or 4, characterized in that: The locking assembly comprises a co-positioned clamping plate (6) arranged at the side end of the clamping plate (43), a reversal unit for limiting sliding in a receiving cavity (61) opened on the co-positioned clamping plate (6), and a first spring (62) arranged between the reversal unit and the side wall of the receiving cavity (61).

7. The circumferential main reinforcement positioning device according to claim 6, characterized in that: The trigger assembly comprises a support seat (7) arranged on the electric telescopic rod (51), a sliding rail plate (71) arranged on the support seat (7), two groups of feedback clamping blocks (72) sliding relatively and synchronously on the sliding rail plate (71), a second spring (73) arranged between the two groups of feedback clamping blocks (72), and a second transmission unit arranged between the feedback clamping blocks (72) and the locking assembly; The opposite sides of the feedback clamping block (72) are arranged as inclined surfaces so as to form a V-shaped groove therebetween.

8. The circumferential main reinforcement positioning device according to claim 7, characterized in that: The sliding rail plate (71) is provided with a second limiting sliding groove (74), the bottom end of the feedback clamping block (72) is provided with a first limiting sliding block (75) which is slidably engaged with the second limiting sliding groove (74), and the second spring (73) is arranged between the first limiting sliding blocks (75).

9. The circumferential main reinforcement positioning device according to claim 6, characterized in that: The anti-reverse unit comprises an installation box (63) that is limited in sliding movement within the accommodating cavity (61) and is connected to a first spring (62), a locking plate (65) that is rotatably arranged within the installation box (63) and has one end extending from a side extension opening (64) provided on the installation box (63), a torsion spring (66) arranged between the locking plate (65) and a side wall of the installation box (63), and a limit block (67) arranged in the installation box (63) for limiting the rotation of the locking plate (65).

10. The circumferential main reinforcement positioning device according to claim 7, characterized in that: The bottom of the said aligning clamp (6) is provided with a card interface (8), and the side walls of the said card interface (8) are provided with a third limiting sliding groove (81), and the second transmission unit includes a first wedge block (82) arranged at the bottom of the anti-reversal unit, a second wedge block (84) which is clamped on both ends by a second limiting sliding block (83) and slides in the third limiting sliding groove (81) and is adapted to the first wedge block (82), a third wedge block (85) arranged at the bottom of the second wedge block (84), and a locking plate (86) arranged on the feedback clamp (72) for adapting and pushing the third wedge block (85).

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