U-shaped bolt bending length control device

Abstract

The utility model relates to the technical field of U-shaped bolt machining, and provides a U-shaped bolt bending length control device which comprises a fixing frame and a center bending frame, the center bending frame is fixed on the fixing frame, a discharging assembly is arranged on the fixing frame, and a conveying positioning assembly is arranged on the center bending frame and the fixing frame. The bending assembly is arranged in the fixing frame and the center bending frame and comprises a fixing plate, the fixing plate is arranged on the surface of the fixing frame, a transmission gear is installed on the surface of the fixing plate, and a hydraulic cylinder is installed on the surface of the fixing frame. By means of the technical scheme, the problems that in the related technology, when a worker holds the U-shaped bolt to bend the U-shaped bolt by hand, the bending length cannot be accurately controlled easily, the lengths of the bent U-shaped bolt are different easily, and the bending efficiency of the U-shaped bolt is affected are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of U-bolt processing, and specifically to a device for controlling the bending length of U-bolts. Background Art

[0002] A U-bolt, also known as a riding bolt, belongs to non-standard parts. It gets its name because of its U-shaped appearance. There are threads at both ends that can be combined with nuts. It is mainly used to fix tubular objects such as water pipes or sheet-like objects such as leaf springs of automobiles. Since the way it fixes objects is like a person riding on a horse, it is called a riding bolt. U-bolts are generally used in trucks. It is used to stabilize the chassis and frame of the vehicle. For example, leaf springs are connected by U-bolts. U-bolts have a wide range of uses, and the main uses include construction installation, connection of mechanical parts, vehicles, ships, bridges, tunnels, railways, etc.

[0003] When processing U-bolts, a bending device is required. When the existing bending device bends U-bolts, usually workers need to hold the U-bolts before bending and place them in the tooling, and then the bending block is pushed by a hydraulic cylinder to bend the U-bolts. However, when workers hold the U-bolts to bend, it is not easy to accurately control the bending length, which easily leads to inconsistent lengths of the U-bolts after bending and affects the bending efficiency of the U-bolts.

[0004] Therefore, improvements are made to solve the above problems. Summary of the Utility Model

[0005] The utility model provides a device for controlling the bending length of U-bolts, which solves the problem in the related technology that when workers hold U-bolts to bend, it is not easy to accurately control the bending length, which easily leads to inconsistent lengths of the U-bolts after bending and affects the bending efficiency of the U-bolts.

[0006] The technical solution of the utility model is as follows: It includes

[0007] A fixed frame and a central bending frame, and the central bending frame is fixed on the fixed frame;

[0008] A discharging component, and the discharging component is arranged on the fixed frame;

[0009] A conveying and positioning component, and the conveying and positioning component is arranged on the central bending frame and the fixed frame;

[0010] A bending component, and the bending component is arranged in the fixed frame and the central bending frame. The bending component includes a fixing plate. The fixing plate is arranged on the surface of the fixed frame. A transmission gear is installed on the surface of the fixing plate, and a hydraulic cylinder is installed on the surface of the fixed frame.

[0011] As a further technical solution, a connecting rod is installed at the front end of the hydraulic cylinder. The output end of the hydraulic cylinder is connected to a transmission rack. The transmission rack is movably sleeved and connected with the connecting rod, and the transmission rack is meshed with the transmission gear.

[0012] As a further technical solution, a swing frame is installed at the other coaxial end of the transmission gear. A bending wheel is rotatably connected to the side end face of the swing frame. An arc-shaped groove is formed on the surface of the central bending frame, a rectangular opening is formed on the surface of the fixed frame, and a movable seat is slidably connected to the bottom of the fixed frame.

[0013] As a further technical solution, a telescopic cylinder is installed at the bottom of the fixed frame. The output end of the telescopic cylinder is connected to the movable seat. A second cylinder is installed at the bottom of the movable seat. The output end of the second cylinder is connected to a pressing block, and the pressing block is located directly below the central bending frame.

[0014] As a further technical solution, a third cylinder is installed on the central bending frame. An activity cavity is formed inside the central bending frame, and an inner block is movably sleeved and connected inside the activity cavity. The inner block is connected to the output end of the third cylinder.

[0015] As a further technical solution, the conveying and positioning assembly includes an outer frame. The outer frame is fixed to the side end face of the fixed frame. A propulsion cylinder is installed on the outer frame. A bracket is installed on the surface of the outer frame, and a pair of side plates are arranged on the side end face of the central bending frame.

[0016] As a further technical solution, a pair of conveying wheels are rotatably connected between the side plates. The upper conveying wheel is driven to rotate by a motor. An inlet hole is formed on the side end face of the central bending frame, and the output end of the propulsion cylinder and the inlet hole are located on the same axis.

[0017] As a further technical solution, the discharging assembly includes a discharging port. The discharging port is formed on the surface of the fixed frame. A pair of shielding covers are arranged on the surface of the fixed frame, and a blanking hopper is arranged at the bottom of the fixed frame.

[0018] As a further technical solution, the side end face of the inner block has the same structure as that of the central bending frame and the arc-shaped groove.

[0019] As a further technical solution, the diameter of the output end of the propulsion cylinder is smaller than the inner diameter size of the inlet hole.

[0020] The working principle and beneficial effects of the present utility model are as follows:

[0021] In the present utility model, a bending assembly is provided. Through the interaction of structures such as a transmission gear, a hydraulic cylinder, a transmission rack, a swing frame, a bending wheel, a moving seat, and a pressing block, the rotating swing frame can press the bending wheel against the surface of the bolt and rotate along the outside of the central bending frame, bending the bolt fixed in the arc-shaped groove into a U-shaped structural state. Bolts of various different lengths can be processed, and there will be no loosening during the bending process, with good forming effects and practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present utility model will be further described in detail below in conjunction with the drawings and specific embodiments.

[0023] Figure 1 is a structural schematic diagram of the present utility model;

[0024] Figure 2 is an axonometric view of the present utility model;

[0025] Figure 3 is an axonometric view of another perspective of the present utility model;

[0026] In the figure: 1, fixed frame; 2, central bending frame; 3, bending assembly; 3-1, fixed plate; 3-2, transmission gear; 3-3, hydraulic cylinder; 3-4, connecting rod; 3-5, transmission rack; 3-6, swing frame; 3-7, bending wheel; 3-8, arc-shaped groove; 3-9, rectangular opening; 3-10, moving seat; 3-11, telescopic cylinder; 3-12, second cylinder; 3-13, pressing block; 3-14, third cylinder; 3-15, activity cavity; 3-16, inner block; 4, conveying and positioning assembly; 4-1, outer frame; 4-2, propulsion cylinder; 4-3, bracket; 4-4, side plate; 4-5, conveying wheel; 4-6, feeding hole; 5, discharging assembly; 5-1, discharging port; 5-2, shielding cover; 5-3, hopper. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] The technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present utility model.

[0028] As Figures 1 to 3 shown, this embodiment proposes a U-bolt bending length control device, including

[0029] a fixed frame 1 and a central bending frame 2, and the central bending frame 2 is fixed on the fixed frame 1;

[0030] a discharging assembly 5, and the discharging assembly 5 is arranged on the fixed frame 1;

[0031] The conveying and positioning assembly 4 is arranged on the central bending frame 2 and the fixed frame 1;

[0032] The bending assembly 3 is arranged inside the fixed frame 1 and the central bending frame 2. The bending assembly 3 includes a fixing plate 3-1 which is arranged on the surface of the fixed frame 1. A transmission gear 3-2 is installed on the surface of the fixing plate 3-1. A hydraulic cylinder 3-3 is installed on the surface of the fixed frame 1. A connecting rod 3-4 is installed at the front end of the hydraulic cylinder 3-3. The output end of the hydraulic cylinder 3-3 is connected with a transmission rack 3-5. The transmission rack 3-5 is movably sleeved and connected with the connecting rod 3-4. The transmission rack 3-5 is meshed with the transmission gear 3-2. The other end of the same axis of the transmission gear 3-2 is installed with a swing frame 3-6. A bending wheel 3-7 is rotatably connected to the side end face of the swing frame 3-6. An arc groove 3-8 is formed on the surface of the central bending frame 2. A rectangular opening 3-9 is formed on the surface of the fixed frame 1. A moving seat 3-10 is slidably connected to the bottom of the fixed frame 1. A telescopic cylinder 3-11 is installed at the bottom of the fixed frame 1. The output end of the telescopic cylinder 3-11 is connected with the moving seat 3-10. A second cylinder 3-12 is installed at the bottom of the moving seat 3-10. The output end of the second cylinder 3-12 is connected with a pressing block 3-13. The pressing block 3-13 is located directly below the central bending frame 2. A third cylinder 3-14 is installed on the central bending frame 2. An activity cavity 3-15 is formed inside the central bending frame 2. An inner block 3-16 is movably sleeved and connected inside the activity cavity 3-15. The inner block 3-16 is connected with the output end of the third cylinder 3-14.

[0033] In this embodiment, in order to achieve the effect of stable bending of the bolt, a bending assembly 3 is designed. A fixed plate 3-1 is arranged on the surface of the fixed frame 1. A transmission gear 3-2 is rotatably connected in the fixed plate 3-1. A swing frame 3-6 is arranged at the other end. A hydraulic cylinder 3-3 is arranged on the surface of the fixed frame 1. A transmission rack 3-5 is arranged at the output end of the hydraulic cylinder 3-3. The transmission rack 3-5 is engaged with the transmission gear 3-2. The rotation of the swing frame 3-6 can be controlled by using the hydraulic cylinder 3-3 as the power. A bending wheel 3-7 is rotatably connected to one side of the swing frame 3-6. The bending wheel 3-7 can rotate along the central bending frame 2 to achieve the state of bending the bolt into a U shape. An arc groove 3-8 is formed on the surface of the central bending frame 2 for embedding the bolt inside. A rectangular opening 3-9 is formed on the surface of the fixed frame 1. A movable seat 3-10 is slidably connected to the bottom. A telescopic cylinder 3-11 is installed at the bottom of the fixed frame 1. The output end of the telescopic cylinder 3-11 is connected to the movable seat 3-10. The movement can be controlled by the telescopic cylinder 3-11. A second cylinder 3-12 is installed at the bottom of the movable seat 3-10. The second cylinder 3-12 is vertically upward and a pressing block 3-13 is arranged at the output end. The bolt can be pressed against the bottom of the central bending frame 2, and the position of the movable seat 3-10 can be adjusted according to the length of different bolts. An activity cavity 3-15 is formed inside the central bending frame 2. A third cylinder 3-14 is installed on the upper surface. An inner block 3-16 is movably sleeved in the activity cavity 3-15. The inner block 3-16 is connected to the output end of the third cylinder 3-14. It can be pushed forward by the third cylinder 3-14 to push the bent and formed bolt outwards.

[0034] Further, the conveying and positioning assembly 4 includes an outer frame 4-1. The outer frame 4-1 is fixed to the side end face of the fixed frame 1. A propulsion cylinder 4-2 is installed on the outer frame 4-1. A bracket 4-3 is installed on the surface of the outer frame 4-1. A pair of side plates 4-4 are arranged on the side end face of the central bending frame 2. A pair of conveying wheels 4-5 are rotatably connected between the side plates 4-4. The upper conveying wheel 4-5 is driven to rotate by a motor. A feeding hole 4-6 is formed on the side end face of the central bending frame 2. The feeding hole 4-6 and the output end of the propulsion cylinder 4-2 are located on the same axis.

[0035] In this embodiment, in order to install and position the bolt, a conveying and positioning assembly 4 is designed. An outer frame 4-1 is arranged on one side of the mounting frame. A propulsion cylinder 4-2 is installed on the outer frame 4-1 for pushing the bolt forward. A bracket 4-3 is arranged on the outer frame 4-1 for placing the bolt. Two side plates 4-4 are arranged on one side of the central bending frame 2. Two conveying wheels 4-5 are installed between the side plates 4-4. One of the conveying wheels 4-5 is controlled to rotate by a motor. A feeding hole 4-6 is also formed for inserting the bolt. After insertion, it can be pushed and positioned by the propulsion cylinder 4-2.

[0036] Further, the discharging assembly 5 includes a discharging port 5-1 which is opened on the surface of the fixing frame 1. A pair of shielding covers 5-2 are arranged on the surface of the fixing frame 1, and a blanking hopper 5-3 is arranged at the bottom of the fixing frame 1.

[0037] In this embodiment, in order to facilitate the collection of the formed bolts, the discharging assembly 5 is designed. A discharging port 5-1 is opened on the surface of the fixing frame 1, and two shielding covers 5-2 are installed at the top. The shielding covers 5-2 are located on both sides of the discharging port 5-1 and are used to block both sides to ensure that the bolts fall downward at the discharging port 5-1. A blanking hopper 5-3 is also arranged at the bottom of the fixing frame 1 to determine the blanking position.

[0038] Further, the side end face of the inner block 3-16 has the same structure as that of the central bending frame 2 and the arc groove 3-8.

[0039] In this embodiment, with the same structure, the inner block 3-16 will not affect the forming process of the bolts and is convenient for pushing the material outwards.

[0040] Further, the diameter of the output end of the propulsion cylinder 4-2 is smaller than the inner diameter of the feeding hole 4-6.

[0041] In this embodiment, with a smaller diameter size, the output end of the propulsion cylinder 4-2 can pass through the feeding hole 4-6 and be accurately positioned at any position.

[0042] When in use, place the bolt on the bracket 4-3 and push it against the output end of the propulsion cylinder 4-2 to keep it in contact. Then start the propulsion cylinder 4-2 to push the bolt forward and pass through the feeding hole 4-6. One end of the bolt that enters is placed on the pressing block 3-13. After positioning, start the second cylinder 3-12 to press the bolt between the pressing block 3-13 and the arc groove 3-8. Subsequently, start the hydraulic cylinder 3-3, and the driving rack 3-5 moves forward to drive the driving gear 3-2 to rotate the swing frame 3-6. The bolt is pressed by the bending wheel 3-7 and rotated upwards. Stop when reaching the top and bend and form at the same time. Then start the third cylinder 3-14 to push the bolt outwards through the inner block 3-16. The bolt passes through the discharging port 5-1 and is discharged outwards through the blanking hopper 5-3. Then continue the installation. When the lengths of different bolts are different, start the telescopic cylinder 3-11 to push the moving seat 3-10 to adjust the position of the pressing block 3-13. During the feeding process of the bolt, it will be supported in turn by the bracket 4-3, the conveying wheel 4-5, the pressing block 3-13 and the bending wheel 3-7 and will not fall downwards.

[0043] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. U-bolt bending length control device, characterized in that, including a fixing frame (1) and a central bending frame (2), the central bending frame (2) being fixed on the fixing frame (1); a discharging assembly (5), the discharging assembly (5) being arranged on the fixing frame (1); a conveying and positioning assembly (4), the conveying and positioning assembly (4) being arranged on the central bending frame (2) and the fixing frame (1); a bending assembly (3), the bending assembly (3) being arranged inside the fixing frame (1) and the central bending frame (2), the bending assembly (3) including a fixing plate (3-1), the fixing plate (3-1) being arranged on the surface of the fixing frame (1), a transmission gear (3-2) being installed on the surface of the fixing plate (3-1), and a hydraulic cylinder (3-3) being installed on the surface of the fixing frame (1).

2. The U-bolt bending length control device according to claim 1, characterized in that, A connecting rod (3-4) is installed at the front end of the hydraulic cylinder (3-3), the output end of the hydraulic cylinder (3-3) is connected to a transmission rack (3-5), the transmission rack (3-5) is movably sleeved and connected with the connecting rod (3-4), and the transmission rack (3-5) is meshed with the transmission gear (3-2).

3. The U-bolt bending length control device according to claim 2, characterized in that, At the other end coaxially with the transmission gear (3-2), a swing frame (3-6) is installed, a bending wheel (3-7) is rotatably connected to the side end face of the swing frame (3-6), an arc-shaped groove (3-8) is formed on the surface of the central bending frame (2), a rectangular opening (3-9) is formed on the surface of the fixing frame (1), and a moving seat (3-10) is slidably connected to the bottom of the fixing frame (1).

4. The U-bolt bending length control device according to claim 3, wherein A telescopic cylinder (3-11) is installed at the bottom of the fixing frame (1), the output end of the telescopic cylinder (3-11) is connected to the moving seat (3-10), a second cylinder (3-12) is installed at the bottom of the moving seat (3-10), the output end of the second cylinder (3-12) is connected to a pressing block (3-13), and the pressing block (3-13) is located directly below the central bending frame (2).

5. The U-bolt bending length control device according to claim 4, characterized in that, A third cylinder (3-14) is installed on the central bending frame (2), a movable cavity (3-15) is formed inside the central bending frame (2), an inner block (3-16) is movably sleeved and connected inside the movable cavity (3-15), and the inner block (3-16) is connected to the output end of the third cylinder (3-14).

6. The U-bolt bending length control device according to claim 1, characterized in that The conveying and positioning assembly (4) includes an outer frame (4-1), the outer frame (4-1) being fixed to the side end face of the fixing frame (1), a propulsion cylinder (4-2) being installed on the outer frame (4-1), a bracket (4-3) being installed on the surface of the outer frame (4-1), and a pair of side plates (4-4) being arranged on the side end face of the central bending frame (2).

7. The U-bolt bending length control device according to claim 6, characterized in that, A pair of conveying wheels (4-5) are rotatably connected between the side plates (4-4), the conveying wheel (4-5) located at the upper end is driven to rotate by a motor, and a feeding hole (4-6) is formed on the side end face of the central bending frame (2), and the feeding hole (4-6) and the output end of the propulsion cylinder (4-2) are located on the same axis position.

8. The U-bolt bending length control device according to claim 1, characterized in that, The discharging assembly (5) includes a discharging port (5-1), the discharging port (5-1) is opened on the surface of the fixed frame (1), a pair of shielding covers (5-2) are arranged on the surface of the fixed frame (1), and a feeding hopper (5-3) is arranged at the bottom of the fixed frame (1).

9. The U-bolt bending length control device according to claim 5, characterized in that, The side end face of the inner block (3-16) has the same structure as the central bending frame (2) and the arc-shaped groove (3-8).

10. The U-bolt bending length control device according to claim 7, characterized in that, The diameter of the output end of the pushing air cylinder (4-2) is smaller than the inner diameter dimension of the feeding hole (4-6).

Images