Stirrup stirring mechanism for production of highway prefabricated box girder reinforcement cage

Abstract

The utility model relates to the technical field of reinforcement cage forming, and provides a stirrup shifting mechanism for highway prefabricated box girder reinforcement cage production, which comprises a stirrup clamping unit, a sliding cross beam, a sliding base and a mechanism support, the mechanism support is arranged on the side of the existing stirrup magazine; stirrup frameworks which are sequentially arranged in the longitudinal direction are hung on the stirrup magazine; the sliding base is fixedly arranged on the mechanism support; the sliding beam is horizontally arranged on the sliding base and is in sliding fit with the sliding base in the longitudinal direction. The stirrup clamping unit is arranged on the sliding cross beam and used for grabbing stirrup frameworks on the stirrup magazine one by one. The stirrup clamping unit grabs stirrup frameworks on the stirrup magazine one by one and horizontally moves to a target position under the action of the sliding cross beam, so that the stirrup frameworks on the stirrup magazine are pulled out one by one, welding operation of the stirrup frameworks and longitudinal bars can be conveniently carried out on subsequent stations, and a basic guarantee is provided for automatic production of prefabricated box girder reinforcement frameworks.

Description

Technical Field

[0001] The utility model belongs to the technical field of steel bar framework forming, and particularly relates to a stirrup dialing mechanism for the production of steel bar frameworks of highway precast box girders. Background Technique

[0002] The steel bar framework of a highway box girder is complex in structure. In the traditional production process, after the production of preliminary parts is completed, the overall installation and forming process can only be achieved through manual operation. The traditional production process is roughly as follows: 1. Install the lower layer longitudinal bars of the bottom plate (outside the web stirrups): Manually place the lower layer longitudinal bars of the bottom plate on the jig; 2. Install and tie the bottom plate stirrups: Manually place the bottom plate stirrups on the jig and manually tie them to the lower layer longitudinal bars of the bottom plate placed in the first step; 3. Install and tie the web stirrups: Manually place the web stirrups on the jig and lower them to manually tie them to the bottom plate stirrups placed in the second step; 4. Thread the web longitudinal bars and the upper layer longitudinal bars of the bottom plate: Manually thread the web longitudinal bars and the upper layer longitudinal bars of the bottom plate and tie them to the web stirrups; 5. Install the lower layer longitudinal bars of the bottom plate (inside the web stirrups): Manually thread the longitudinal bars of the lower layer of the bottom plate contained inside the web stirrups and tie them to the web stirrups; 6. Tie the web longitudinal bars: Manually place and tie the inner longitudinal bars of the web and tie them to the web stirrups; 7. Reinforcement adjustment: Manually adjust the spacing and tightness of the above-mentioned steel bars.

[0003] It can be found from the above general process that there are a wide variety of parts for the production of steel bar frameworks, the installation steps are complicated, and many of these links are quite difficult even for manual operation, resulting in low production efficiency and difficult quality assurance. The patent with the publication number of CN116968171A discloses a box girder steel bar framework forming device. This device stores the formed U-shaped stirrup frameworks (or stirrups) on the stirrup suspension rack (or stirrup magazine) in sequence to form a stirrup magazine. The longitudinal bars are pulled through the U-shaped stirrup frameworks on the stirrup suspension rack by the stirrup feeding bridge, and then the U-shaped stirrup frameworks on the stirrup suspension rack are pulled out one by one, so that the pulled-out U-shaped stirrup frameworks are welded to the longitudinal bars of the box girder steel bar framework at the welding workstation, realizing the welding and forming of the box girder steel bar framework. Among them, the spacing between adjacent stirrups of the formed box girder steel bar framework is greater than the spacing between adjacent U-shaped stirrup frameworks arranged on the stirrup suspension rack. However, in the above device, the U-shaped stirrup frameworks arranged on the stirrup suspension rack need to be pulled out one by one manually and moved to the welding workstation. This manual stirrup dialing method is not conducive to improving the production efficiency of the box girder steel bar framework. Content of the Utility Model

[0004] In view of the above problems in the prior art, the present application proposes a stirrup dialing mechanism for the production of steel bar frameworks of highway precast box girders, which can automatically pull out the U-shaped stirrup frameworks on the stirrup suspension rack or stirrup magazine one by one and push them to the next working station, providing a basic guarantee for the automated production of precast box girder steel bar frameworks.

[0005] The utility model provides a stirrup bar shifting mechanism for the production of the steel bar framework of highway precast box girders, which comprises a stirrup bar clamping unit, a sliding cross beam, a sliding base and a mechanism support;

[0006] The mechanism support is arranged on the side of an existing stirrup bar magazine; stirrup bar frameworks are hung on the stirrup bar magazine and arranged longitudinally in sequence;

[0007] The sliding base is fixedly arranged on the mechanism support;

[0008] The sliding cross beam is horizontally arranged on the sliding base and is in sliding fit with the sliding base longitudinally;

[0009] The stirrup bar clamping unit is arranged on the sliding cross beam and is used for grasping the stirrup bar frameworks on the stirrup bar magazine one by one.

[0010] Further, the stirrup bar clamping unit comprises a jaw mounting member, a first cylinder and a clamping member; the jaw mounting member is connected with the sliding cross beam, the first cylinder is mounted on the jaw mounting member, the first cylinder is connected with the clamping member and is used for driving the clamping member to approach or move away from the stirrup bar framework; the clamping member is used for clamping the stirrup bar framework.

[0011] Further, the clamping member comprises a jaw cylinder and jaws connected with the jaw cylinder.

[0012] Further, the stirrup bar clamping unit further comprises a first connecting plate; the first connecting plate connects the jaw cylinder and the first cylinder.

[0013] Further, the stirrup bar clamping unit further comprises a second cylinder and an opposed photoelectric sensor; the second cylinder is mounted on the jaw mounting member, the second cylinder is connected with the opposed photoelectric sensor and is used for driving the opposed photoelectric sensor to approach or move away from the stirrup bar framework.

[0014] Further, the telescopic directions of the second cylinder and the first cylinder are the same.

[0015] Further, the stirrup bar clamping unit further comprises a second connecting plate and an opposed photoelectric sensor mounting bracket; the second connecting plate connects the second cylinder and the opposed photoelectric sensor mounting bracket; the opposed photoelectric sensor is mounted on the opposed photoelectric sensor mounting bracket.

[0016] Further, the stirrup bar shifting mechanism further comprises a driving motor and a transmission assembly; the driving motor and the transmission assembly are matched with each other and are distributed at opposite ends of the sliding base; the transmission assembly is connected with the sliding cross beam.

[0017] Further, one end of the sliding crossbeam is connected to the stirrup clamping unit, and the other end is connected with a sensor sensing piece; a sensor assembly cooperating with the sensor sensing piece is arranged on the sliding base or the mechanism support.

[0018] Further, there are at least two mechanism supports, which are oppositely distributed on both sides of the stirrup magazine; the end face of the mechanism support facing the stirrup magazine is an inclined surface, and at least two sliding bases are arranged on the inclined surface.

[0019] The beneficial effects of the present utility model are as follows: the stirrup clamping unit grabs the stirrup skeletons on the stirrup magazine one by one, and horizontally moves to the target position under the action of the sliding crossbeam, so as to realize the extraction of the stirrup skeletons on the stirrup magazine one by one, facilitating the subsequent operation of welding the stirrup skeletons and longitudinal bars, and providing a basic guarantee for the automatic production of the steel bar skeletons of precast box girders. Description of the Drawings

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the stirrup extracting mechanism for the production of the steel bar skeletons of highway precast box girders according to the present utility model, installed on both sides of the stirrup magazine.

[0021] Figure 2 It is a structural schematic diagram of the stirrup clamping unit of the stirrup extracting mechanism according to the present utility model, grabbing one stirrup skeleton.

[0022] Figure 3 It is Figure 1 a structural schematic diagram after hiding all the stirrup skeletons on the stirrup magazine in

[0023] Figure 4 It is Figure 3 an enlarged structural schematic diagram of the stirrup extracting mechanism in

[0024] Figure 5 It is Figure 4 a structural schematic diagram of another perspective of the stirrup extracting mechanism in

[0025] Figure 6 It is Figure 5 an enlarged structural schematic diagram of the stirrup clamping unit in

[0026] Figure 7 It is a three-dimensional structural schematic diagram of the rear view perspective of the stirrup clamping unit, sliding crossbeam and sliding base of the stirrup extracting mechanism according to the present utility model.

[0027] Figure 8 It is Figure 7 a three-dimensional structural schematic diagram after hiding the sliding base in

[0028] In the figure, 1 is the stirrup clamping unit; 2 is the sliding crossbeam; 3 is the sensor sensing piece; 4 is the sliding base; 5 is the mechanism support; 6 is the driving motor; 7 is the limit stop; 8 is the rack; 9 is the gear; 10 is the sensor assembly; 11 is the jaw mounting piece; 12 is the first cylinder; 13 is the second cylinder; 14 is the first connecting plate; 15 is the jaw cylinder; 16 is the jaw; 17 is the second connecting plate; 18 is the mounting bracket for the opposed sensor; 19 is the opposed sensor; 20 is the stirrup magazine; 21 is the stirrup skeleton. Detailed implementation mode

[0029] The following further describes the present utility model in detail in conjunction with the accompanying drawings and specific embodiments.

[0030] As Figures 1 - 4 shown, the stirrup dialing mechanism for the production of the steel bar skeleton of the precast box girder for highways includes: a stirrup clamping unit 1, a sliding crossbeam 2, a sliding base 4, a mechanism support 5, a driving motor 6 and a transmission component.

[0031] As Figure 1 shown, there are two mechanism supports 5, which are relatively distributed on both sides of the stirrup magazine 20.

[0032] The stirrup skeletons 21 are suspended on the stirrup magazine 20 in longitudinal sequence; since the stirrup skeletons 21 cannot be placed completely regularly in the stirrup magazine 20, in order to ensure reliable grasping of the stirrup skeletons 21 by the stirrup clamping unit 1 during use, a total of four grasping points are set, two on each side of the stirrup magazine 20, and the four stirrup clamping units 1 are used to respectively grasp the hypotenuse near the four corners of the stirrup skeleton 21, as Figure 2 shown.

[0033] The stirrup magazine 20 includes a magazine bottom plate, a magazine support frame and a suspension rod arranged above the magazine bottom plate; the magazine support frame is connected to one end of the magazine bottom plate and the suspension rod. The stirrup skeletons 21 are suspended on the suspension rod in sequence, and the magazine bottom plate supports the bottom of the stirrup skeletons 21. Among them, the longitudinal direction refers to the length direction of the stirrup magazine 20, which is also the length direction of the box girder steel bar skeleton.

[0034] The sliding base 4 is fixedly arranged on the mechanism support 5. As Figure 2 shown, the outline of the stirrup skeleton 21 is an inverted trapezoid. The end face of the mechanism support 5 facing the stirrup magazine 20 is an inclined plane, and the slope of this inclined plane is the same as the slope of the hypotenuse of the stirrup skeleton 21. Two sliding bases 4 are arranged on the inclined plane. The two sliding bases 4 maintain a distance along the height direction of the mechanism support 5.

[0035] The sliding crossbeam 2 is horizontally arranged on the sliding base 4 and is slidably matched with it longitudinally.

[0036] The stirrup clamping unit 1 is arranged on the sliding cross beam 2 and is used to grab the stirrup skeletons 21 on the stirrup magazine 20 one by one.

[0037] As Figure 4 , Figure 5 shown, one end of the sliding cross beam 2 is connected to the stirrup clamping unit 1, and the other end is connected with a sensor induction piece 3; a sensor assembly 10 cooperating with the sensor induction piece 3 is arranged on the sliding base 4 or the mechanism support 5. The relative distance between the sensor assembly 10 and the sensor induction piece 3 is used to define the sliding distance of the sliding cross beam 2.

[0038] As Figure 7 , Figure 8 shown, the driving motor 6 and the transmission assembly cooperate with each other and are distributed at the opposite ends of the sliding base 4; the transmission assembly is connected to the sliding cross beam 2. The transmission assembly includes a gear 9 and a rack 8 which are engaged with each other. The rack 8 is fixedly arranged on the sliding cross beam 2. While the gear 9 is engaged with the rack 8, the center of the gear 9 is connected to the output shaft of the driving motor 6, and the output shaft of the driving motor 6 also passes through the sliding base 4. A guide rail parallel to the rack 8 is further arranged on the sliding cross beam 2, and a slider is fitted on the guide rail, and the slider is connected to the sliding base 4. Among them, the length direction of the rack 8 is the length direction of the sliding cross beam 2. Under the action of the driving motor 6, the gear 9 is driven to rotate, and the gear 9 is engaged with the rack 8 fixed on the sliding cross beam 2, so as to drive the sliding cross beam 2 to translate. The translation of the sliding cross beam 2 drives the stirrup clamping unit 1 at one end of it to move synchronously.

[0039] In order to prevent the sliding cross beam 2 from disengaging from the sliding base 4, limit blocks 7 are fixedly connected to both ends of the sliding cross beam 2.

[0040] As Figure 6 shown, the stirrup clamping unit 1 includes a jaw mounting part 11, a first cylinder 12, a clamping part, a first connecting plate 14, a second cylinder 13, an opposed sensor 19, a second connecting plate 17 and an opposed sensor mounting bracket 18.

[0041] The jaw mounting part 11 is connected to the sliding cross beam 2, the first cylinder 12 is mounted on the jaw mounting part 11, the first cylinder 12 is connected to the clamping part and is used to drive the clamping part to approach or move away from the stirrup skeleton 21; the clamping part is used to clamp the stirrup skeleton 21. Among them, the clamping part includes a jaw cylinder 15 and jaws 16 connected to the jaw cylinder 15. The jaw cylinder 15 and the jaws 16 are existing finished products, and under the action of the jaw cylinder 15, the jaws 16 are driven to open or clamp.

[0042] The first connecting plate 14 connects the jaw cylinder 15 and the first cylinder 12. The second cylinder 13 is installed on the jaw mounting member 11, and the second cylinder 13 is connected to the opposed sensor 19 for driving the opposed sensor 19 to approach or move away from the stirrup cage 21.

[0043] The telescopic direction of the second cylinder 13 is the same as that of the first cylinder 12. In this embodiment, the second cylinder 13 is arranged below the first cylinder 12. The first cylinder 12 is installed on the top of the jaw mounting member 11, and the second cylinder 13 is installed on the bottom of the jaw mounting member 11.

[0044] The second connecting plate 17 connects the second cylinder 13 and the opposed sensor mounting bracket 18; the opposed sensor 19 is installed on the opposed sensor mounting bracket 18. The opposed sensor 19 is used to detect the position of the stirrup cage 21.

[0045] Of course, the stirrup dialing mechanism further includes a controller, and the controller is electrically connected to the drive motor 6, the first cylinder 12, the second cylinder 13, the jaw cylinder 15, the sensor assembly 10, the opposed sensor 19, etc.

[0046] During operation, first, the second cylinder 13 acts to drive the opposed sensor mounting bracket 18 to extend. The sliding beam 2 drives the stirrup clamping unit 1 to translate and approach the stirrup cage 21 at the end of the stirrup magazine 20, triggering the opposed sensor 19. The controller controls the second cylinder 13 to act and extend the clamping member. The jaw cylinder 15 of the clamping member closes, so that the two jaws 16 clamp a stirrup cage 21. The four stirrup clamping units 1 perform the same action and clamp the four points of the stirrup cage 21 respectively. The sliding beams 2 of the four stirrup clamping units 1 synchronously translate away from the stirrup magazine 20 relative to the sliding base 4, removing the stirrup cage 21 from the stirrup magazine 20 and pushing it to the target position of the next station. In the production of the box girder steel bar cage, the next station is the welding station. After the stirrup cage 21 is pushed to the welding station by the stirrup dialing mechanism, the stirrup cage 21 is welded to the longitudinal bars at the welding station by using welding equipment. It solves the problem that the traditional stirrup cage 21 needs to be manually taken out of the stirrup magazine 20 one by one, providing guarantee for the subsequent automated production. This mechanism has a simple structure, high reliability and is easy to implement.

[0047] The above is only the preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the concept of the present invention belong to the protection scope of the present invention. It should be noted that for those of ordinary skill in the art, several improvements and refinements made without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A stirrup mechanism for producing a prefabricated highway box girder reinforcement skeleton, characterized in that: include: Stirrup clamping unit, sliding beam, sliding base and mechanism support; The mechanism support is arranged on the side of the existing stirrup magazine; a stirrup skeleton arranged in sequence along the longitudinal direction is hung on the stirrup magazine; The sliding base is fixedly arranged on the mechanism support; The sliding crossbeam is horizontally arranged on the sliding base and cooperates with the sliding base in a longitudinal sliding manner; The stirrup clamping unit is arranged on the sliding beam, and is used for grabbing the stirrup skeletons on the stirrup magazine one by one.

2. The stirrup mechanism for producing a prefabricated highway box girder steel frame according to claim 1, characterized in that: The stirrup clamping unit includes a clamping jaw mounting part, a first cylinder and a clamping member; the clamping jaw mounting part is connected to the sliding beam, the first cylinder is mounted on the clamping jaw mounting part, and the first cylinder is connected to the clamping member for driving the clamping member to move closer to or away from the stirrup skeleton; the clamping member is used to clamp the stirrup skeleton.

3. The stirrup mechanism for producing a prefabricated highway box girder reinforcement skeleton according to claim 2, characterized in that: The clamping member comprises a clamping claw cylinder and a clamping claw connected to the clamping claw cylinder.

4. The stirrup-pulling mechanism for producing a prefabricated highway box girder reinforcement skeleton according to claim 3 is characterized in that: The stirrup clamping unit further includes a first connecting plate; the first connecting plate connects the clamping jaw cylinder and the first cylinder.

5. The stirrup-pulling mechanism for producing a prefabricated highway box girder reinforcement skeleton according to claim 2, characterized in that: The stirrup clamping unit also includes a second cylinder and a through-beam sensor; the second cylinder is mounted on the clamping jaw mounting member, and the second cylinder is connected to the through-beam sensor for driving the through-beam sensor to move closer to or away from the stirrup skeleton.

6. The stirrup-pulling mechanism for producing a prefabricated highway box girder reinforcement skeleton according to claim 5, characterized in that: The extension and retraction directions of the second cylinder are the same as those of the first cylinder.

7. The stirrup-pulling mechanism for producing a prefabricated highway box girder reinforcement skeleton according to claim 5, characterized in that: The stirrup clamping unit also includes a second connecting plate and a through-beam sensor mounting bracket; the second connecting plate connects the second cylinder and the through-beam sensor mounting bracket; the through-beam sensor is mounted on the through-beam sensor mounting bracket.

8. The stirrup-pulling mechanism for producing a prefabricated highway box girder reinforcement skeleton according to claim 1, characterized in that: The hoop reinforcement mechanism also includes a driving motor and a transmission assembly; the driving motor and the transmission assembly cooperate with each other and are distributed at opposite ends of the sliding base; the transmission assembly is connected to the sliding beam.

9. The stirrup-pulling mechanism for producing a prefabricated highway box girder reinforcement skeleton according to claim 1, characterized in that: One end of the sliding crossbeam is connected to the stirrup clamping unit, and the other end is connected to a sensor sensing sheet; a sensor assembly cooperating with the sensor sensing sheet is arranged on the sliding base or the mechanism support.

10. The stirrup-pulling mechanism for producing a prefabricated highway box girder reinforcement skeleton according to claim 1, characterized in that: There are at least two mechanism supports which are relatively distributed on both sides of the stirrup magazine; the end surface of the mechanism support facing the stirrup magazine is an inclined surface, and at least two sliding bases are arranged on the inclined surface.

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