Bending device for precast concrete frame

Abstract

The utility model relates to the technical field of precast concrete frames, in particular to a precast concrete frame bending device which comprises a bending table, four table legs fixedly installed at the bottom of the bending table, a support fixedly installed on the bending table, a controller installed on the support and a transmission assembly fixedly installed at the bottom of the support. A bending assembly is arranged on the transmission assembly, a mounting seat and a fixing seat are fixedly mounted at the upper end of the left side of the bending table, a clamping assembly is arranged on the mounting seat, a precast concrete frame is placed on the inner side of the fixing seat, and an arc groove and a sliding groove are formed in the bending table. The rotating angle of the large gear is controlled through the controller, then the bending angle of the precast concrete frame is accurately controlled, the applicability is improved, meanwhile, the sliding base is in a lead screw jacking mode, in addition, the T-shaped sliding block is arranged at the bottom of the sliding base, the clamping stability in the bending process is guaranteed, and the safety performance is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of precast concrete frames, in particular to a bending device for precast concrete frames. Background Art

[0002] Precast concrete refers to concrete that is made in factories or on-site. Precast concrete is cast elsewhere rather than at the final construction site. Precast concrete of different sizes and shapes can use fibers to enhance its reliability and toughness after cracking. The production of precast concrete components requires the following processes: frame binding and welding, film bonding, pouring and curing. The frame structure of some corners needs to be bent with the help of bending equipment to meet the structural requirements.

[0003] The utility model patent with Chinese patent number CN217451899U discloses a bending device for a precast concrete frame, including a support plate, a support leg is fixedly connected to the bottom of the support plate, a fixing device is fixedly connected to the top of the support plate, the fixing device includes a handle, a turntable, a first fixing plate, a through hole, a screw, a moving block, a bearing, a connecting rod, a second fixing plate, a clamping plate, and a limiting rod. The front side of the handle is fixedly connected to the back side of the turntable, the bottom of the first fixing plate is fixedly connected to the top of the support plate, and the through hole is arranged on the first fixing plate. The utility model places the steel bar between the support and the second positioning plate and contacts with the limiting plate. At this time, the steel bar contacts with the first positioning plate, and the handle is turned to move the clamping plate forward, so that the steel bar can be fixed, so as to prevent the steel bar from being displaced during the bending process, resulting in poor bending effect, improving bending efficiency, and having high practicality.

[0004] The above patent has some defects in use: the patent cannot accurately control the bending angle when bending the steel bars, and the maximum bending angle is less than 90 degrees, which is not applicable enough. At the same time, the bending stroke is set in a straight line, which conflicts with the bending angle rotation radius, causing wear between the bending head and the steel bar, affecting the bending quality. Utility Model Content

[0005] The utility model aims to solve the shortcomings of the prior art and proposes a bending device for a prefabricated concrete frame.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A bending device for a precast concrete frame comprises a bending table, four table legs are fixedly installed at the bottom of the bending table, a bracket is fixedly installed on the bending table, a controller is installed on the bracket, a transmission assembly is fixedly installed at the bottom of the bracket, a bending assembly is arranged on the transmission assembly, a mounting seat and a fixing seat are fixedly installed at the upper left end of the bending table, a clamping assembly is arranged on the mounting seat, a precast concrete frame is placed inside the fixing seat, and an arc groove and a slide groove are opened on the bending table.

[0008] Preferably, the arc groove and the slide groove pass through the bending table.

[0009] Preferably, the precast concrete frame is ribbed steel bars.

[0010] Preferably, the transmission assembly includes a motor, a pinion and a gear. The motor is fixedly mounted on the bottom of the bracket, the pinion is fixedly mounted on the output end of the motor, and the gear is meshed with the pinion.

[0011] Preferably, a support column is fixedly installed between the bending table and the bracket, a first bearing is fixedly installed on the outer side of the support column, and the large gear is fixedly installed on the outer side of the first bearing.

[0012] Preferably, the bending assembly includes a connecting column, a second bearing and a bending seat, the connecting column is fixedly installed at the bottom of the large gear, the inner and outer sides of the second bearing are fixedly connected to the connecting column and the bending seat respectively, and a sliding column is fixedly installed at the bottom of the bending seat, and the sliding column is slidably connected to the arc groove.

[0013] Preferably, the clamping assembly includes a screw rod, a handle and a slide seat, the screw rod is threaded through the mounting seat, the handle is fixedly mounted on the front end of the screw rod, and the slide seat is rotatably mounted on the rear end of the screw rod.

[0014] Preferably, two sliding blocks are fixedly mounted on the bottom of the slide seat, the sliding blocks are slidably connected to the slide grooves, and the sliding blocks are T-shaped structures.

[0015] In the utility model, a bending device for a precast concrete frame is described, which strengthens the guiding stability of the bending seat through an arc groove, and the starting motor drives the large gear to rotate through the meshing action between the small gear and the large gear, thereby driving the connecting column and the bending seat fixedly installed on the lower side to rotate around the center of the large gear. The bending seat and the connecting column are in a rotational connection relationship through a second bearing. When the large gear drives the bending seat to rotate, it can adaptively rotate around the connecting column according to the rotation angle to maintain full contact with the precast concrete frame. The controller is used to control the rotation angle of the large gear during the whole process, thereby accurately controlling the bending angle of the precast concrete frame.

[0016] In the utility model, a bending device for a precast concrete frame is described, which drives the screw rod to rotate by rotating the handle, and utilizes the screw connection between the screw rod and the mounting seat to drive the slide seat to move, so as to clamp and loosen the precast concrete frame. The slider installed at the bottom of the slide seat is T-shaped, which ensures the stability of the slide seat sliding, and further ensures the clamping stability during the bending process.

[0017] The utility model has a reasonable design. The controller controls the rotation angle of the large gear, thereby accurately controlling the bending angle of the precast concrete frame, thereby improving applicability. At the same time, the slide seat is tightened by a screw rod, and a T-shaped slider is provided at the bottom of the slide seat, which ensures the clamping stability during the bending process and improves safety performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A three-dimensional structure diagram of a bending device for a prefabricated concrete frame proposed by the utility model Figure 1 ;

[0019] Figure 2 A three-dimensional structure diagram of a bending device for a prefabricated concrete frame proposed by the utility model Figure 2 ;

[0020] Figure 3 This is a top view of a bending device for a prefabricated concrete frame proposed by the utility model;

[0021] Figure 4 This is a bottom view of a bending device for a prefabricated concrete frame proposed by the utility model;

[0022] Figure 5 The utility model is a side view of a bending device for a prefabricated concrete frame.

[0023] In the figure: 1. table leg; 2. bending table; 3. bracket; 4. controller; 5. motor; 6. small gear; 7. support column; 8. first bearing; 9. large gear; 10. connecting column; 11. second bearing; 12. bending seat; 13. arc groove; 14. sliding column; 15. mounting seat; 16. screw rod; 17. handle; 18. sliding seat; 19. sliding groove; 20. slider; 21. fixing seat; 22. precast concrete frame. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in 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.

[0025] Reference Figure 1-5A bending device for a precast concrete frame comprises a bending table 2, an arc groove 13 and a slide groove 19 are provided on the bending table 2, four table legs 1 are fixedly installed at the bottom of the bending table 2, a bracket 3 is fixedly installed on the bending table 2, a transmission component is fixedly installed at the bottom of the bracket 3, a bending component is arranged on the transmission component, a controller 4 is installed on the bracket 3, a mounting seat 15 and a fixing seat 21 are fixedly installed at the upper left end of the bending table 2, a clamping component is arranged on the mounting seat 15, and a precast concrete frame 2 is placed inside the fixing seat 21 2. The precast concrete frame 22 is a ribbed steel bar, and the arc groove 13 and the slide groove 19 pass through the bending table 2. It should be noted here that the controller 4 is electrically connected to the motor 5. By controlling the rotation angle parameter of the motor 5 and the meshing tooth ratio of the large gear 9 and the small gear 6, the rotation angle of the large gear 9 is controlled, and finally the bending angle of the precast concrete frame 22 on the bending table 2 can be accurately controlled. The rotation angle of the arc groove 13 corresponding to the center of the circle is 135 degrees. The bending angle range of the utility model is 0 degrees to 135 degrees, which can meet the angle requirements of bending steel bars in engineering.

[0026] In this embodiment, a support column 7 is fixedly installed between the bending table 2 and the bracket 3, and a first bearing 8 is fixedly installed on the outer side of the support column 7. The large gear 9 is fixedly installed on the outer side of the first bearing 8, and then the large gear 9 is rotatably connected to the support column 7 through the first bearing 8. The support column 7 is used to rotatably install the large gear 9 and also reinforces the bracket 3. In addition, the support column 7 is the bending starting point of the precast concrete frame 22 bending process.

[0027] In this embodiment, the transmission assembly includes a motor 5, a pinion 6 and a large gear 9. The motor 5 is fixedly mounted at the bottom of the bracket 3. The large gear 9 is meshed with the pinion 6. The pinion 6 is fixedly mounted on the output end of the motor 5. The meshing action of the large gear 9 and the pinion 6 amplifies the output torque of the motor 5 and improves the bending power.

[0028] In this embodiment, the bending assembly includes a connecting column 10, a second bearing 11 and a bending seat 12, the inner and outer sides of the second bearing 11 are fixedly connected to the connecting column 10 and the bending seat 12 respectively, and then the bending seat 12 is rotationally connected to the connecting column 10 through the second bearing 11, the connecting column 10 is fixedly installed at the bottom of the large gear 9, and a sliding column 14 is fixedly installed at the bottom of the bending seat 12, and the sliding column 14 is slidingly connected to the arc groove 13, and the sliding column 14 provides guiding stability for the bending seat 12 to improve the force stability during the bending process. It should be noted here that the center of the arc groove 13 coincides with the center of the large gear 9 on the vertical plane, that is, when the bending seat 12 revolves around the center of the large gear 9, the sliding column fixedly installed at its bottom also revolves around the corresponding center, which is consistent with the setting of the arc groove 13.

[0029] In this embodiment, the clamping assembly includes a screw rod 16, a handle 17 and a slide 18. The slide 18 is rotatably mounted on the rear end of the screw rod 16, and the handle 17 is fixedly mounted on the front end of the screw rod 16. The screw rod 16 is threaded through the mounting seat 15. Two sliders 20 are fixedly mounted on the bottom of the slide 18. The sliders 20 are slidably connected to the slide groove 19. The slider 20 is a T-shaped structure. The setting of the T-shaped structure prevents the slide 18 from being forced to tilt upward when clamping the precast concrete frame 22. The clamping effect of the T-shaped structure ensures the stability of the clamping.

[0030] In the present invention, when in use, the precast concrete frame 22 is placed on the bending table 2, so that its side is in contact with the fixed seat 21, the support column 7 and the side of the bending seat 12 in sequence, the handle 17 is rotated to drive the slide seat 18 to press against the precast concrete frame 22, and then the bending angle is input into the controller 4, and then the controller 4 controls the motor 5 to start, and through the meshing action of the small gear 6 and the large gear 9, the large gear 9 obtains the torque to drive the bending seat 12 installed thereunder to rotate, and since the bending seat 12 is in contact with the precast concrete frame The side of the frame 22 fits together. When the bending seat 12 revolves around the arc groove 13, it also rotates around the second bearing 11. Its rotation angle adapts to the revolution angle, keeping the side of the bending seat 12 always in contact with the side of the precast concrete frame 22, which helps to stabilize the force during the bending process. When the large gear 9 rotates to reach the set bending angle, the motor 5 stops outputting, and the bending process is completed. At this time, the handle 17 is reversed to release the precast concrete frame 22, and finally the precast concrete frame 22 that has been bent is removed. The above is the workflow and principle of the utility model. The utility model controls the rotation angle of the large gear 9 through the controller 4, and then accurately controls the bending angle of the precast concrete frame 22, thereby improving applicability. At the same time, the slide 18 adopts the method of screw rod 16 to tighten, and a T-shaped slider 20 is provided at the bottom of the slide 18 to ensure the clamping stability of the bending process and improve safety.

[0031] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is defined by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0032] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A bending device for a precast concrete frame, characterized in that: It includes a bending table, four table legs are fixedly installed at the bottom of the bending table, a bracket is fixedly installed on the bending table, a controller is installed on the bracket, a transmission assembly is fixedly installed at the bottom of the bracket, a bending assembly is arranged on the transmission assembly, a mounting seat and a fixed seat are fixedly installed on the upper left end of the bending table, a clamping assembly is arranged on the mounting seat, a precast concrete frame is placed inside the fixed seat, and an arc groove and a slide groove are opened on the bending table.

2. A bending device for a precast concrete frame according to claim 1, characterized in that: The arc groove and the slide groove pass through the bending table.

3. The bending device for precast concrete frame according to claim 1, characterized in that: The prefabricated concrete frame is a ribbed steel bar.

4. The bending device for precast concrete frame according to claim 1, characterized in that: The transmission assembly includes a motor, a pinion and a large gear. The motor is fixedly mounted at the bottom of the bracket, the pinion is fixedly mounted on the output end of the motor, the large gear is meshed with the pinion, a support column is fixedly mounted between the bending table and the bracket, a first bearing is fixedly mounted on the outer side of the support column, and the large gear is fixedly mounted on the outer side of the first bearing.

5. The bending device for precast concrete frame according to claim 1, characterized in that: The bending assembly includes a connecting column, a second bearing and a bending seat. The connecting column is fixedly installed at the bottom of the large gear. The inner and outer sides of the second bearing are fixedly connected to the connecting column and the bending seat respectively. A sliding column is fixedly installed at the bottom of the bending seat, and the sliding column is slidably connected to the arc groove.

6. The bending device for precast concrete frame according to claim 1, characterized in that: The clamping assembly comprises a screw rod, a handle and a slide seat. The screw rod is threaded through the mounting seat, the handle is fixedly mounted on the front end of the screw rod, and the slide seat is rotatably mounted on the rear end of the screw rod.

7. The bending device for precast concrete frame according to claim 6, characterized in that: Two sliding blocks are fixedly installed at the bottom of the sliding seat, and the sliding blocks are slidably connected with the sliding grooves, and the sliding blocks are T-shaped structures.

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