Numerical control bending machine suitable for different bending angles

Abstract

The numerical control bending machine suitable for different bending angles comprises a main machine body, two bending mechanisms are symmetrically installed on the top side of the main machine body, each bending mechanism comprises a fixing rod fixedly connected with the top side of the main machine body, and the outer side of each fixing rod is coaxially and rotationally connected with a rotating disc through a bearing; a bending rod corresponding to the fixed rod is eccentrically and fixedly mounted on the top side of the turntable; and gears are coaxially and fixedly connected to the outer sides of the rotating discs, a rack is jointly connected between the two sets of gears in an engaged mode, and the rack is slidably connected with the top side of the main machine body. Through cooperation of the first electric cylinder, the connecting plate and the sliding block, the rack can be driven to move flexibly, through cooperation of the two gears and the rack, the two rotating discs can be driven to rotate flexibly at the same time, therefore, two steel bars can be bent at a time, and the bending efficiency of products is improved.

Description

Technical Field

[0001] This invention belongs to the field of bending machine technology, and more specifically, relates to a CNC bending machine suitable for different bending angles. Background Technology

[0002] Rebar bending machines are commonly used rebar processing equipment, boasting advantages such as simple structure and convenient operation. They are particularly widely used in precast component manufacturing for bending rebar. However, existing rebar bending machines typically bend only one group of rebars at a time, resulting in low bending efficiency. Therefore, this paper researches and improves upon existing structures and shortcomings to provide a CNC bending machine suitable for different bending angles, aiming to achieve greater practical value. Summary of the Invention

[0003] To solve the above-mentioned technical problems, the present invention provides a CNC bending machine applicable to different bending angles, which is achieved by the following specific technical means: A CNC bending machine suitable for different bending angles includes a main body. Two sets of bending mechanisms are symmetrically installed on the top side of the main body. Each bending mechanism includes a fixed rod fixedly connected to the top side of the main body. A turntable is rotatably connected to the outer side of the fixed rod via a bearing. A bending rod is eccentrically fixedly installed on the top side of the turntable corresponding to the fixed rod. Gears are fixedly connected to the outer side of each turntable. A rack is meshed between the two sets of gears. The rack is slidably connected to the top side of the main body.

[0004] Furthermore, a worktable is installed on the outer side of both sets of bending mechanisms. The worktable is fixedly connected to the top side of the main body by fasteners. Two sets of through holes and two sets of arc grooves are symmetrically provided on the worktable. The top ends of the two sets of fixing rods pass through the two sets of through holes and are located on the top side of the worktable. The top ends of the two sets of bending rods pass through the two sets of arc grooves and are located on the top side of the worktable. The two sets of bending rods are slidably connected to the two sets of arc grooves respectively.

[0005] Furthermore, two sets of fixed grippers are fixedly installed on the top side of the workbench corresponding to the two sets of fixed rods, and two sets of movable grippers are installed on the top side of the workbench corresponding to the two sets of fixed grippers. Both sets of movable grippers are slidably connected to the top side of the workbench through sliding grooves and sliding blocks.

[0006] Furthermore, a push plate is slidably connected to the top side of the workbench, a first inclined surface is provided on one side of the movable gripper, and a second inclined surface is provided on both ends of the push plate. A dovetail block is fixedly installed on the second inclined surface, a dovetail groove is provided on the first inclined surface, and the inner side of the dovetail groove is slidably connected to the outer side of the dovetail block. An electric cylinder is fixedly installed on the top side of the workbench, and the output end of the electric cylinder is fixedly connected to one side of the push plate.

[0007] Furthermore, a sliding groove is provided on the top side of the main body, and a slider is slidably connected to the inner side of the sliding groove. The top end of the slider passes through the sliding groove and is fixedly connected to the bottom side of one end of the rack. A connecting plate is fixedly installed at the bottom end of the slider. An electric cylinder is fixedly installed on the top side of the inner wall of the main body, and the output end of the electric cylinder is fixedly connected to one side of the connecting plate.

[0008] Furthermore, a movable frame is slidably connected to the connecting plate on the top side of the inner wall of the main body. Two sets of light rods are slidably connected to one side of the movable frame. One end of each set of light rods passes through one side of the movable frame and is fixedly connected to a limit plate. A limit block is fixedly installed on the other end of each light rod. A fixed cylinder is slidably connected to the outer side of each limit block through a damping block. The fixed cylinder is fixedly connected to one side of the movable frame by fasteners. A spring is installed on the inner side of the fixed cylinder. The two ends of the spring abut against one side of the limit block and one side of the inner wall of the fixed cylinder, respectively.

[0009] Furthermore, an electric cylinder three is fixedly installed on the top side of the inner wall of the main body, and an installation plate that is slidably connected to the top side of the inner wall of the main body is fixedly installed on the output end of the electric cylinder three. One side of the installation plate is fixedly connected to one side of the movable frame.

[0010] Furthermore, a support arm is fixedly installed on one side of the main body, and a controller is fixedly installed on one end of the support arm. Electric cylinder one, electric cylinder two, and electric cylinder three are all connected to the controller through wires.

[0011] Compared with the prior art, the present invention has the following beneficial effects: 1. This invention, through the cooperation of an electric cylinder, a connecting plate, and a slider, enables the rack to move flexibly. Through the cooperation of two sets of gears and racks, it enables the simultaneous rotation of two sets of turntables, thereby achieving bending of two sets of steel bars in a single operation and increasing the bending efficiency of the product.

[0012] 2. This invention, through the cooperation of the guide rod and the movable frame, enables the flexible movement of the limiting plate on the movable frame. Through the cooperation of the electric cylinder and the mounting plate, the movable frame can be moved flexibly and fixed after movement. This prevents the connecting plate from continuing to move due to inertia and causing excessive bending angle when it presses the limiting plate against one side of the movable frame. Through the cooperation of the spring and the damping block, the impact force generated on the connecting plate and the movable frame can be buffered to avoid damage to the electric cylinder, thus increasing the practicality of the product. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0014] Figure 2This is a schematic diagram of the gear and rack structure of the present invention.

[0015] Figure 3 This is a schematic diagram of the connecting plate structure of the present invention.

[0016] Figure 4 This is a schematic diagram of the movable frame and spring structure of the present invention.

[0017] In the diagram, the correspondence between component names and drawing numbers is as follows: 1. Main body; 2. Fixed rod; 3. Turntable; 4. Bending rod; 5. Gear; 6. Rack; 7. Worktable; 8. Fixed gripper; 9. Moving gripper; 10. Push plate; 11. Slider; 12. Connecting plate; 13. Moving frame; 14. Smooth rod; 15. Limiting plate; 16. Limiting block; 17. Fixed cylinder; 18. Spring; 19. Electric cylinder one; 20. Electric cylinder two; 21. Electric cylinder three; 22. Support arm; 23. Controller. Detailed Implementation

[0018] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.

[0019] In the description of this invention, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0021] Example: As attached Figure 1 To be continued Figure 4 As shown: This invention provides a CNC bending machine suitable for different bending angles, including a main body 1. Two sets of bending mechanisms are symmetrically installed on the top side of the main body 1. Each bending mechanism includes a fixed rod 2 fixedly connected to the top side of the main body 1. A turntable 3 is rotatably connected to the outer side of the fixed rod 2 via a bearing. A bending rod 4 is eccentrically fixedly installed on the top side of the turntable 3 corresponding to the fixed rod 2. Gears 5 are fixedly connected to the outer side of each turntable 3 on the same axis. A rack 6 is meshed between the two sets of gears 5. The rack 6 is slidably connected to the top side of the main body 1.

[0022] The two sets of bending mechanisms are equipped with a workbench 7 on their outer sides. The workbench 7 is fixedly connected to the top side of the main body 1 by fasteners. The workbench 7 is symmetrically provided with two sets of through holes and two sets of arc grooves. The top ends of the two sets of fixing rods 2 pass through the two sets of through holes and are located on the top side of the workbench 7. The top ends of the two sets of bending rods 4 pass through the two sets of arc grooves and are located on the top side of the workbench 7. The two sets of bending rods 4 are slidably connected to the two sets of arc grooves, which can protect the gears 5 and racks 6 in the product.

[0023] The workbench 7 has two sets of fixed clamps 8 fixedly installed on the top side corresponding to the two sets of fixed rods 2, and two sets of movable clamps 9 fixedly installed on the top side corresponding to the two sets of fixed clamps 8. Both sets of movable clamps 9 are slidably connected to the top side of the workbench 7 through sliding grooves and sliding blocks, which can realize the stable fixing of the reinforcing bars.

[0024] The workbench 7 has a push plate 10 slidably connected to its top side. One side of the movable gripper 9 is provided with an inclined surface, and both ends of the push plate 10 are provided with inclined surfaces 2. A dovetail block is fixedly installed on the inclined surface 2. A dovetail groove is provided on the inclined surface 1. The inner side of the dovetail groove is slidably connected to the outer side of the dovetail block. An electric cylinder 20 is fixedly installed on the top side of the workbench 7. The output end of the electric cylinder 20 is fixedly connected to one side of the push plate 10, which can realize the simultaneous movement of two sets of movable grippers 9 by one set of electric cylinder 20.

[0025] The main body 1 has a sliding groove on its top side, and a slider 11 is slidably connected to the inner side of the sliding groove. The top end of the slider 11 passes through the sliding groove and is fixedly connected to the bottom side of one end of the rack 6. A connecting plate 12 is fixedly installed at the bottom end of the slider 11. An electric cylinder 19 is fixedly installed on the top side of the inner wall of the main body 1. The output end of the electric cylinder 19 is fixedly connected to one side of the connecting plate 12, which can realize the automatic movement of the rack 6.

[0026] The main body 1 has a movable frame 13 slidably connected to the connecting plate 12 on the top side of the inner wall. Two sets of light rods 14 are slidably connected to one side of the movable frame 13. One end of each set of light rods 14 passes through one side of the movable frame 13 and is fixedly connected to a limit plate 15. Limit blocks 16 are fixedly installed on the other end of each light rod 14. A fixed cylinder 17 is slidably connected to the outside of each limit block 16 through a damping block. The fixed cylinder 17 is fixedly connected to one side of the movable frame 13 by fasteners. A spring 18 is installed on the inside of the fixed cylinder 17. The two ends of the spring 18 abut against one side of the limit block 16 and one side of the inner wall of the fixed cylinder 17, respectively, which can buffer the impact force generated between the connecting plate 12 and the movable frame 13.

[0027] Among them, an electric cylinder 21 is fixedly installed on the top side of the inner wall of the main body 1. An installation plate that is slidably connected to the top side of the inner wall of the main body 1 is fixedly installed on the output end of the electric cylinder 21. One side of the installation plate is fixedly connected to one side of the moving frame 13, which can realize the automatic movement of the moving frame 13 and flexibly adjust the position of the moving frame 13 according to the bending angle.

[0028] A support arm 22 is fixedly installed on one side of the main body 1, and a controller 23 is fixedly installed on one end of the support arm 22. The electric cylinder 19, electric cylinder 20 and electric cylinder 3 21 are all connected to the controller 23 through wires, which can realize convenient control of electric cylinder 19, electric cylinder 20 and electric cylinder 3 21.

[0029] The working principle of this embodiment is as follows: When it is necessary to bend the steel bars, firstly, the electrical components such as electric cylinder 19, electric cylinder 20, and electric cylinder 3 21 in the product are connected to an external power source. The two sets of steel bars are placed in a suitable position. At this time, the fixed clamp 8 and the moving clamp 9 are located on both sides of the steel bars, and the fixed rod 2 and the bending rod 4 are located on both sides of the steel bars. Electric cylinder 20 is started to drive the push plate 10 to move. The push plate 10 drives the moving clamp 9 to move and clamp the steel bars. Then, electric cylinder 19 is started to drive the connecting plate 12 and the slider 11 to move. The slider 11 drives the rack 6 to move. The rack 6 drives the two sets of gears 5 and the two sets of turntables 3 to rotate. The turntables 3 drive the bending rod 4 to rotate and bend the steel bars. The bending angle is adjusted by adjusting the stroke of electric cylinder 19 and electric cylinder 3 21 through the controller 23. When the bending angle is appropriate, the connecting plate 12 drives the limiting plate 15 to press against one side of the moving frame 13 to prevent the connecting plate 12 from moving excessively due to inertia, thus completing the simultaneous bending of the two sets of steel bars.

[0030] The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and to design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A CNC bending machine suitable for different bending angles, comprising a main body (1), characterized in that: Two sets of bending mechanisms are symmetrically installed on the top side of the main body (1). The bending mechanism includes a fixed rod (2) fixedly connected to the top side of the main body (1). A turntable (3) is rotatably connected to the outer side of the fixed rod (2) through a bearing. A bending rod (4) is eccentrically fixedly installed on the top side of the turntable (3) corresponding to the fixed rod (2). Gears (5) are fixedly connected to the outer side of the turntable (3) on the same axis. A rack (6) is meshed between the two sets of gears (5). The rack (6) is slidably connected to the top side of the main body (1).

2. The CNC bending machine applicable to different bending angles as described in claim 1, characterized in that: A workbench (7) is installed on the outer side of both sets of bending mechanisms. The workbench (7) is fixedly connected to the top side of the main body (1) by fasteners. Two sets of through holes and two sets of arc grooves are symmetrically provided on the workbench (7). The top ends of the two sets of fixing rods (2) pass through the two sets of through holes and are located on the top side of the workbench (7). The top ends of the two sets of bending rods (4) pass through the two sets of arc grooves and are located on the top side of the workbench (7). The two sets of bending rods (4) are slidably connected to the two sets of arc grooves respectively.

3. The CNC bending machine applicable to different bending angles as described in claim 1, characterized in that: Two sets of fixed grippers (8) are fixedly installed on the top side of the workbench (7) corresponding to two sets of fixed rods (2), and two sets of movable grippers (9) are installed on the top side of the workbench (7) corresponding to two sets of fixed grippers (8). Both sets of movable grippers (9) are slidably connected to the top side of the workbench (7) through sliding grooves and sliding blocks.

4. The CNC bending machine applicable to different bending angles as described in claim 3, characterized in that: A push plate (10) is slidably connected to the top side of the workbench (7). One side of the movable gripper (9) is provided with an inclined surface. Both ends of the push plate (10) are provided with inclined surfaces. A dovetail block is fixedly installed on the inclined surface. A dovetail groove is provided on the inclined surface. The inner side of the dovetail groove is slidably connected to the outer side of the dovetail block. An electric cylinder (20) is fixedly installed on the top side of the workbench (7). The output end of the electric cylinder (20) is fixedly connected to one side of the push plate (10).

5. The CNC bending machine applicable to different bending angles as described in claim 1, characterized in that: The main body (1) has a sliding groove on its top side. A slider (11) is slidably connected to the inner side of the sliding groove. The top of the slider (11) passes through the sliding groove and is fixedly connected to the bottom side of one end of the rack (6). A connecting plate (12) is fixedly installed at the bottom end of the slider (11). An electric cylinder (19) is fixedly installed on the top side of the inner wall of the main body (1). The output end of the electric cylinder (19) is fixedly connected to one side of the connecting plate (12).

6. The CNC bending machine applicable to different bending angles as described in claim 1, characterized in that: A movable frame (13) is slidably connected to the connecting plate (12) on the top side of the inner wall of the main body (1). Two sets of light rods (14) are slidably connected to one side of the movable frame (13). One end of each set of light rods (14) passes through one side of the movable frame (13) and is fixedly connected to a limiting plate (15). A limiting block (16) is fixedly installed on the other end of each light rod (14). A fixed cylinder (17) is slidably connected to the outside of each limiting block (16) through a damping block. The fixed cylinder (17) is fixedly connected to one side of the movable frame (13) by fasteners. A spring (18) is installed on the inside of the fixed cylinder (17). The two ends of the spring (18) abut against one side of the limiting block (16) and one side of the inner wall of the fixed cylinder (17), respectively.

7. The CNC bending machine applicable to different bending angles as described in claim 1, characterized in that: An electric cylinder three (21) is fixedly installed on the top side of the inner wall of the main body (1). An installation plate that is slidably connected to the top side of the inner wall of the main body (1) is fixedly installed on the output end of the electric cylinder three (21). One side of the installation plate is fixedly connected to one side of the moving frame (13).

8. The CNC bending machine applicable to different bending angles as described in claim 1, characterized in that: A support arm (22) is fixedly installed on one side of the main body (1), and a controller (23) is fixedly installed on one end of the support arm (22). The electric cylinders 1 (19), 2 (20) and 3 (21) are all connected to the controller (23) through wires.

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