A cold bending forming device for U-shaped bolts

Abstract

The utility model discloses a kind of U-shaped bolt cold bending forming devices, including workbench;Bending roller, movably installed at workbench center, and bottom is connected with driving mechanism, for driving bending roller to rotate;Fixed frame, install on workbench, and present inverted L type;Rotary shaft, bottom movably installed on fixed frame;Positioning roller, install at rotary shaft top, and with bending roller position corresponding;Pneumatic execution device, install on workbench rear end;Guide slide rail, fixed on workbench;Strip rack, slidingly installed in guide slide rail, and rear end with pneumatic execution device telescopic end connection;Transmission gear, install on rotary shaft, and with strip rack meshing;Notch, open in positioning roller rear end.The utility model has the beneficial effect that, when taking material, pneumatic execution device drives positioning roller deflection by strip rack, makes notch opposite bending roller, to reduce taking material resistance, prevent damage workpiece when taking material.

Description

Technical Field

[0001] This utility model relates to the field of cold bending forming technology, specifically to a U-bolt cold bending forming device. Background Technology

[0002] Cold bending is a processing method that bends metal materials into specific shapes and sizes at room temperature. It is widely used in various industries such as construction, automobiles, and power equipment, and has advantages such as high efficiency, energy saving, and high material utilization. Cold bending is a highly efficient and energy-saving plastic processing technology that bends metal bars into U-shapes at room temperature using rollers or molds, avoiding the energy consumption and deformation risks associated with heating.

[0003] Existing roller bending equipment typically uses the rotation and pressure of rollers to bend and shape U-bolts. However, after cold bending, the U-bolts are difficult to handle due to the tight fit between the rollers and the material, and the lack of an automatic separation design. Traditionally, manual handling is required, which can easily damage the workpiece. Utility Model Content

[0004] To address the above deficiencies, this utility model provides a U-bolt cold bending forming device to solve the problem of material removal after U-bolt cold bending forming.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A U-bolt cold bending forming device, comprising Workbench; The bending roller is movably mounted at the center of the worktable, and a drive mechanism is connected to its bottom to drive the bending roller to rotate. The fixed bracket is mounted on the workbench and is in the shape of an inverted L. The rotating shaft is movably mounted on a fixed bracket at the bottom. The positioning roller is installed on top of the rotating shaft and corresponds to the position of the bending roller; The pneumatic actuator is installed at the rear end of the workbench; Guide rails are fixed on the worktable; A rack and pinion is slidably installed in a guide rail, and its rear end is connected to the telescopic end of a pneumatic actuator. The transmission gear is mounted on the rotating shaft and meshes with the rack; The notch is located at the rear end of the positioning roller.

[0006] Furthermore, the drive mechanism includes an electric motor installed at the bottom of the worktable, with the rotating end of the electric motor facing vertically downwards. A drive shaft is movably inserted at the center of the worktable, and the electric motor is used to drive the drive shaft to rotate. A rotating frame is connected to the upper end of the drive shaft, and the rotating shaft is movably inserted on the rotating frame. The bending roller is fixed at the upper end of the rotating frame. The electric motor drives the drive shaft to rotate, and through the rotating frame, it can drive the bending roller to rotate around the positioning roller, which facilitates the cold bending and forming of the U-bolts.

[0007] Furthermore, the rotating end of the motor is connected to the drive shaft via a transmission belt to realize the transmission between the motor and the drive shaft.

[0008] Furthermore, a deflection rod is connected to the front end of the drive shaft, and a guide seat is installed at the top front end of the deflection rod. The front end of the bar that needs to be bent is placed on the guide seat. When the drive shaft rotates, it can drive the guide seat to rotate synchronously, thereby achieving the bearing function of the bar. The deflection rod and the rack are staggered, so no interference occurs when they rotate.

[0009] Furthermore, a positioning mechanism is provided at the rear end of the workbench; the positioning mechanism includes a threaded sleeve fixed at the rear end of the workbench, a threaded rod inserted inside the threaded sleeve, a horizontal plate movably connected to the rear end of the threaded rod, and a positioning baffle connected to the left side of the front end of the horizontal plate. The operator can adjust the horizontal plate back and forth by rotating the threaded rod, thereby adjusting the position of the positioning baffle.

[0010] Furthermore, the workbench is equipped with a support seat corresponding to the positioning baffle. The guide seat, bending roller, positioning roller, and support seat are at the same horizontal height. When feeding, the bar stock is passed through the guide seat, bending roller, positioning roller, and support seat in sequence. The positioning baffle is used to position the front end of the bar stock.

[0011] This utility model provides a U-bolt cold bending forming device, which has the following beneficial effects: the driving mechanism drives the bending roller to rotate, and cooperates with the positioning roller to realize the cold bending forming of the U-bolt; during material picking, the pneumatic actuator drives the positioning roller to deflect through the rack and pinion, so that the notch is opposite to the bending roller, thereby reducing the material picking resistance and preventing damage to the workpiece during material picking. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of a U-shaped bolt cold bending forming device according to the present invention; Figure 2 This is a schematic diagram of the drive mechanism of this utility model; Figure 3 This is a schematic diagram of the rotation of the rotating frame described in this utility model; Figure 4 This is a schematic diagram of the rack and pinion drive described in this utility model; Figure 5 This is a schematic diagram of the deflection rod described in this utility model; Figure 6 This is a schematic diagram of the positioning roller deflection described in this utility model; In the diagram: 1. Workbench; 2. Bending roller; 3. Fixed frame; 4. Rotating shaft; 5. Positioning roller; 6. Pneumatic actuator; 7. Guide rail; 8. Rack and pinion; 9. Transmission gear; 10. Notch; 11. Electric motor; 12. Drive shaft; 13. Rotating frame; 14. Transmission belt; 15. Deflection rod; 16. Guide seat; 17. Threaded sleeve; 18. Threaded rod; 19. Horizontal plate; 20. Positioning baffle; 21. Bearing seat. Detailed Implementation

[0013] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0014] Please see Figures 1 to 6 As shown, this application embodiment provides a U-bolt cold bending forming device, including a worktable 1; a bending roller 2, movably installed at the center of the worktable 1, and connected to a drive mechanism at the bottom for driving the bending roller 2 to rotate; a fixed frame 3, installed on the worktable 1, and in an inverted L shape; a rotating shaft 4, movably installed on the fixed frame 3 at the bottom via a fastening bearing; a positioning roller 5, installed on the top of the rotating shaft 4, and corresponding to the position of the bending roller 2; a pneumatic actuator 6, installed at the rear end of the worktable 1; a guide rail 7, fixed on the worktable 1; a rack 8, slidably installed in the guide rail 7, and connected at the rear end to the telescopic end of the pneumatic actuator 6; a transmission gear 9, installed on the rotating shaft 4, and meshing with the rack 8; and a notch 10, opened at the rear end of the positioning roller 5.

[0015] In this embodiment, the bar stock to be bent is first passed between the bending roller 2 and the positioning roller 5. During cold bending, the drive mechanism drives the bending roller 2 to rotate around the positioning roller 5, completing the cold bending of the U-bolt. When the bending roller 2 rotates, the positioning roller 5 does not rotate, and the bending roller 2 and the rack 8 are staggered at different heights to avoid interference. Afterward, the bending roller 2 is reset, and the pneumatic actuator 6, which uses a cylinder, extends its telescopic end, driving the rack 8 to slide towards the front end. This, in turn, drives the rotating shaft 4 to rotate via the transmission gear 9, thereby deflecting the notch 10 of the upper positioning roller 5 to be opposite to the bending roller 2. Figure 6 As shown, this is to reduce material handling resistance and prevent damage to the workpiece during material handling.

[0016] In some embodiments, the drive mechanism includes a motor 11 mounted on the bottom of the workbench 1, with the rotating end of the motor 11 facing vertically downward. A drive shaft 12 is movably inserted into the center of the workbench 1 via a fastening bearing. The motor 11 is used to drive the drive shaft 12 to rotate. A rotating frame 13 is connected to the upper end of the drive shaft 12. A rotating shaft 4 is movably inserted into the rotating frame 13 via a fastening bearing. The bending roller 2 is fixed to the upper end of the rotating frame 13.

[0017] like Figure 2 and Figure 3 As shown, the motor 11 drives the drive shaft 12 to rotate, and through the rotating frame 13, it can drive the bending roller 2 to rotate around the positioning roller 5, which facilitates the cold bending and forming of the U-bolt.

[0018] In some embodiments, the rotating end of the motor 11 is connected to the drive shaft 12 via a transmission belt 14 to realize the transmission between the motor 11 and the drive shaft 12.

[0019] In some embodiments, a deflection rod 15 is connected to the front end of the drive shaft 12, and a guide seat 16 is mounted on the top front end of the deflection rod 15, such as... Figure 5 As shown, the front end of the bar to be bent is placed on the guide seat 16. When the drive shaft 12 rotates, it can drive the guide seat 16 to rotate synchronously, so as to realize the load-bearing function of the bar. The deflection rod 15 and the rack 8 are staggered, so no interference occurs when they rotate.

[0020] In some embodiments, a positioning mechanism is provided at the upper rear end of the workbench 1; the positioning mechanism includes a threaded sleeve 17 fixed at the upper rear end of the workbench 1, a threaded rod 18 inserted inside the threaded sleeve 17, a horizontal plate 19 movably connected to the rear end of the threaded rod 18, and a positioning baffle 20 connected to the left side of the front end of the horizontal plate 19.

[0021] like Figure 1 As shown, the operator can adjust the horizontal plate 19 back and forth by rotating the threaded rod 18, thereby adjusting the position of the positioning baffle 20.

[0022] In some embodiments, a support seat 21 corresponding to the positioning baffle 20 is installed on the workbench 1. The guide seat 16, bending roller 2, positioning roller 5 and support seat 21 are at the same horizontal height. When feeding, the bar is passed through the guide seat 16, bending roller 2 and positioning roller 5 and the support seat 21 in sequence. The positioning baffle 20 is used to position the front end of the bar.

[0023] The above technical solution only embodies the preferred technical solution of this utility model. Any changes that may be made by those skilled in the art to certain parts of it embody the principle of this utility model and fall within the protection scope of this utility model.

Claims

1. A U-bolt cold bending forming device, characterized in that: include Workbench (1); The bending roller (2) is movably installed at the center of the workbench (1) and has a drive mechanism connected to its bottom for driving the bending roller (2) to rotate. The fixed frame (3) is installed on the workbench (1) and is in the shape of an inverted L; The rotating shaft (4) is movably mounted on the fixed frame (3) at the bottom; The positioning roller (5) is installed on the top of the rotating shaft (4) and corresponds to the position of the bending roller (2); A pneumatic actuator (6) is installed on the rear end of the workbench (1); Guide rail (7) is fixed on the worktable (1); A rack (8) is slidably installed in a guide rail (7), and its rear end is connected to the telescopic end of a pneumatic actuator (6); The transmission gear (9) is mounted on the rotating shaft (4) and meshes with the rack (8); The notch (10) is located at the rear end of the positioning roller (5).

2. The U-bolt cold bending forming device according to claim 1, characterized in that, The drive mechanism includes an electric motor (11) installed at the bottom of the workbench (1), with the rotating end of the electric motor (11) facing vertically downward. A drive shaft (12) is movably inserted at the center of the workbench (1). The electric motor (11) is used to drive the drive shaft (12) to rotate. A rotating frame (13) is connected to the upper end of the drive shaft (12). The rotating shaft (4) is movably inserted on the rotating frame (13). The bending roller (2) is fixed on the upper end of the rotating frame (13).

3. The U-bolt cold bending forming device according to claim 2, characterized in that, The rotating end of the motor (11) is connected to the drive shaft (12) via a transmission belt (14).

4. The U-bolt cold bending forming device according to claim 2, characterized in that, The front end of the drive shaft (12) is connected to a deflection rod (15), and a guide seat (16) is installed at the top front end of the deflection rod (15).

5. The U-bolt cold bending forming device according to claim 1, characterized in that, The workbench (1) is provided with a positioning mechanism at its rear end. The positioning mechanism includes a threaded sleeve (17) fixed at the rear end of the workbench (1). A threaded rod (18) is inserted into the threaded sleeve (17). A horizontal plate (19) is movably connected to the rear end of the threaded rod (18). A positioning baffle (20) is connected to the left side of the front end of the horizontal plate (19).

6. The U-bolt cold bending forming device according to claim 5, characterized in that, The workbench (1) is equipped with a support seat (21) corresponding to the positioning baffle (20).

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