Bending device for steel plates

Abstract

The utility model relates to metal sheet processing equipment technical field discloses a kind of bending device for steel plate, including rack, the bottom of the rack is rotatably provided with two rotating shafts, the surface of the rotating shaft is fixed with lower mould, the one end of the rotating shaft is fixed with gear for transmission, the bottom of the one side of the rack is equipped with the driving assembly for driving rotating shaft, the bottom of the rack is equipped with the support assembly for providing support to rotating shaft, the middle part of the top of the rack is fixed with hydraulic cylinder inside;Through hydraulic cylinder drive compression assembly to descend, compression assembly cooperation lower mould can be bent into shape to steel plate, through driving assembly drive one rotating shaft, two gears can make two rotating shafts rotate in opposite directions, two lower moulds can move synchronously, angle between two lower moulds can be adjusted in the middle, in turn the bending angle of steel plate can be adjusted, ensure the position accuracy between two lower moulds.

Description

Technical Field

[0001] This utility model relates to the technical field of metal sheet processing equipment, specifically a bending device for steel plates. Background Technology

[0002] Steel plate bending is a metal sheet processing technology that refers to the process of using mechanical force to plastically deform a steel plate at a specific location to form a predetermined angle or shape. It is widely used in sheet metal processing, such as chassis, brackets, building components, etc. The bent steel plate must maintain its structural strength and the surface must be free of cracks or excessive stretching.

[0003] The patent application "202323291327.2" discloses a "steel plate bending device," which "includes a worktable, a limiting groove is formed at the middle of the top surface of the worktable, a limiting rod is provided inside the limiting groove, a limiting block is provided on the limiting rod, and an inclined block is provided at the top of the limiting block. Support plates are provided on both sides of the limiting groove on the top surface of the worktable, and a horizontal plate is provided between the two support plates. In this invention, the steel plate to be processed is placed on a bearing block on one side surface of the inclined block. The bending head is moved by a hydraulic push rod at the middle of the top surface of the horizontal plate, thereby bending the steel plate on the top surface of the bearing block. The distance between the two inclined blocks can be adjusted by moving the inclined block with an electric push rod, thus adapting to the bending requirements of steel plates at different angles, reducing the limitations in use, and improving the adaptability of the device."

[0004] However, the above method still has the following drawbacks: the electric push rod drives the inclined block to move, which can adapt to the bending requirements of steel plates at different angles, but it is difficult to ensure the synchronization of the two electric push rods, which can easily lead to the inclined block being out of center, reducing the bending quality. In addition, the two electric push rods need to be installed horizontally, which takes up a lot of installation space. Utility Model Content

[0005] In view of the shortcomings of the prior art, this utility model provides a bending device for steel plates, which has the advantages of good synchronization of angle adjustment and improved bending quality of steel plates, thus solving the problems mentioned in the background art.

[0006] This utility model provides the following technical solution: a bending device for steel plates, including a frame, two rotating shafts rotatably mounted at the bottom of the frame, a lower die fixedly mounted on the surface of the rotating shafts, a gear for transmitting power fixedly mounted at one end of the rotating shafts, a drive assembly for driving the rotating shafts at the bottom of one side of the frame, a support assembly for supporting the rotating shafts at the bottom of the frame, and a hydraulic cylinder fixedly mounted in the middle of the top of the frame, the hydraulic rod of the hydraulic cylinder being connected to a pressing assembly.

[0007] As a preferred technical solution of this utility model, the drive assembly includes a frame, one side of which is fixedly connected to the bottom of the frame, a worm gear is rotatably connected inside the frame, the worm gear is meshed with a worm wheel, the middle of one side of the worm wheel is fixedly connected to one end of one of the rotating shafts, and an electromagnetic brake motor for driving the worm gear is fixedly installed on one side of the frame.

[0008] As a preferred embodiment of this utility model, the surfaces of the two lower molds are provided with mutually staggered sliding grooves, and the two lower molds are slidably connected through the sliding grooves.

[0009] As a preferred embodiment of the present invention, the support assembly includes a support frame, a plurality of upright plates are fixedly arranged inside the support frame, and grooves corresponding to the rotating shaft are opened on both sides of the top of the support frame, and the inside of the grooves is coated with grease.

[0010] As a preferred embodiment of this utility model, mounting plates are fixedly provided at the bottom of both sides of the support frame, and the bottom end of the mounting plate is fixedly connected to the inner wall of the bottom end of the frame by bolts.

[0011] As a preferred technical solution of this utility model, the pressing assembly includes a lifting plate, the hydraulic rod of the hydraulic cylinder is fixedly connected to the middle of the top of the lifting plate through a mounting plate, the bottom end of the lifting plate is fixedly provided with a mounting seat, one side of the mounting seat is fixedly installed with a mounting strip by bolts, and the bottom end of the mounting strip is fixedly connected to an upper mold.

[0012] As a preferred embodiment of this utility model, guide sleeves are fixedly provided at all four corners of the lifting plate, and two guide posts are fixedly provided on the inner walls of both sides of the top of the frame, with the guide sleeves and guide posts being slidably connected.

[0013] As a preferred embodiment of this utility model, the inner walls of the bottom sides of the frame are fixedly provided with support plates, the bottom end of the guide column is fixedly connected to the top end of the support plate, and the two sides of the bottom end of the support plate are welded with reinforcing plates to strengthen it.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The bending device used for this steel plate uses a hydraulic cylinder to drive the pressing assembly to descend. The pressing assembly, in conjunction with the lower die, can bend the steel plate into shape. The drive assembly drives one of the rotating shafts, and two gears can make the two rotating shafts rotate in opposite directions. The two lower dies can move synchronously, which can adjust the angle between the two lower dies in the center, thereby adjusting the bending angle of the steel plate. This ensures the positional accuracy between the two lower dies, avoids the reduction of bending quality, and can achieve self-locking of the rotating shaft. There is no need to drive the lower die horizontally. The structure is compact and does not take up much space.

[0015] 2. The bending device used for this steel plate can replace the upper die with one that matches the angle of the lower die after disassembling the upper die of the pressing assembly and adjusting the angle of the lower die. During the bending process of the steel plate, the support assembly can provide support for the rotating shaft, making the rotating shaft less prone to deformation under stress and improving the compressive strength of the rotating shaft. Attached Figure Description

[0016] Figure 1 This is one of the structural schematic diagrams of this utility model; Figure 2 This is the second structural schematic diagram of the present invention; Figure 3 This is a schematic diagram of the structure of the drive component of this utility model; Figure 4 This is a schematic diagram of the structure of the support component of this utility model; Figure 5 This is a schematic diagram of the pressing assembly of this utility model; Figure 6 This is a schematic diagram of the structure of the mounting base of this utility model.

[0017] In the diagram: 1. Frame; 2. Rotating shaft; 3. Lower mold; 4. Slide groove; 5. Drive assembly; 501. Frame; 502. Worm gear; 503. Worm wheel; 504. Electromagnetic brake motor; 6. Gear; 7. Support assembly; 701. Support frame; 702. Vertical plate; 703. Groove; 704. Mounting plate; 8. Hydraulic cylinder; 9. Pressing assembly; 901. Lifting plate; 902. Guide sleeve; 903. Mounting seat; 904. Mounting strip; 905. Upper mold; 10. Guide post; 11. Support plate; 12. Reinforcing plate. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figures 1-6A steel plate bending device includes a frame 1. Two rotating shafts 2 are rotatably mounted at the bottom of the frame 1. A lower die 3 is fixedly mounted on the surface of the rotating shaft 2. A gear 6 is fixedly mounted at one end of the rotating shaft 2 to drive it. A drive assembly 5 for driving the rotating shaft 2 is located at the bottom of one side of the frame 1. A support assembly 7 for supporting the rotating shaft 2 is located at the bottom of the frame 1. A hydraulic cylinder 8 is fixedly installed in the middle of the top of the frame 1. The hydraulic rod of the hydraulic cylinder 8 is connected to a pressing assembly 9. The pressing assembly 9 is driven to descend by the hydraulic cylinder 8. The pressing assembly 9, in conjunction with the lower die 3, can bend the steel plate into shape. One of the rotating shafts 2 is driven by the drive assembly 5. The two gears 6 can make the two rotating shafts 2 rotate in opposite directions. The two lower dies 3 can move synchronously, so the angle between the two lower dies 3 can be adjusted in the center, thereby adjusting the bending angle of the steel plate. In this embodiment, preferably, the drive assembly 5 includes a frame 501. One side of the frame 501 is fixedly connected to the bottom of one side of the frame 1. A worm 502 is rotatably connected inside the frame 501. A worm wheel 503 is meshed with the worm 502. The middle part of one side of the worm wheel 503 is fixedly connected to one end of one of the rotating shafts 2. An electromagnetic brake motor 504 that drives the worm 502 is fixedly installed on one side of the frame 501. The frame 501 can provide support for the electromagnetic brake motor 504 and the worm 502. The electromagnetic brake motor 504 drives the worm 502. The worm 502 can drive one of the rotating shafts 2 to rotate through the worm wheel 503. After the rotating shaft 2 is rotated, the electromagnetic brake motor 504, together with the worm 502 and the worm wheel 503, can achieve self-locking of the rotating shaft 2. In this embodiment, preferably, the support component 7 includes a support frame 701, with a plurality of upright plates 702 fixedly disposed inside the support frame 701. Grooves 703 corresponding to the rotating shaft 2 are opened on both sides of the top of the support frame 701. The inside of the grooves 703 is coated with grease. Mounting plates 704 are fixedly disposed on the bottom of both sides of the support frame 701. The bottom end of the mounting plate 704 is fixedly connected to the inner wall of the bottom end of the frame 1 by bolts. The upright plates 702 can improve the compressive strength of the support frame 701. The support frame 701 can provide support for the rotating shaft 2 through the grooves 703. During the bending process of the steel plate, the rotating shaft 2 is not easily deformed by the force. By coating the inside of the grooves 703 with grease, the friction between the rotating shaft 2 and the grooves 703 can be reduced. In this embodiment, preferably, the pressing assembly 9 includes a lifting plate 901. The hydraulic rod of the hydraulic cylinder 8 is fixedly connected to the middle of the top of the lifting plate 901 via a mounting plate. A mounting seat 903 is fixedly provided at the bottom of the lifting plate 901. An mounting strip 904 is fixedly installed on one side of the mounting seat 903 by bolts. An upper mold 905 is fixedly connected to the bottom of the mounting strip 904. Guide sleeves 902 are fixedly provided at each of the four corners of the lifting plate 901. Two guide posts 10 are fixedly provided on the inner walls of both sides of the top of the frame 1. 902 is slidably connected to the guide post 10. Support plates 11 are fixedly installed on the inner walls of the bottom of both sides of the frame 1. The bottom end of the guide post 10 is fixedly connected to the top end of the support plate 11. Reinforcing plates 12 are welded to both sides of the bottom end of the support plate 11 to reinforce it. The mounting strip 904 is fixed by bolts. The mounting base 903 can install and support the upper mold 905. The upper mold 905 can be removed by removing the mounting strip 904. After the angle of the lower mold 3 is adjusted, it is convenient to replace the upper mold 905 with an angle that matches it. In this embodiment, preferably, the surfaces of the two lower molds 3 are provided with mutually staggered sliding grooves 4, and the two lower molds 3 are slidably connected through the sliding grooves 4. The sliding grooves 4 can ensure that the two lower molds 3 slide against each other without interfering with their rotational movement.

[0020] In use, the steel plate is first placed between the two lower dies 3, and then the pressing assembly 9 is driven to descend by the hydraulic cylinder 8. The guide sleeve 902 and the guide post 10 of the pressing assembly 9 can guide the lifting plate 901 and prevent the lifting plate 901 from tilting. The lifting plate 901 can drive the upper die 905 to descend, so that the steel plate can be bent and formed. After the steel plate is bent, the upper die 905 is lifted and the formed steel plate can be removed. During the bending of the steel plate, the support frame 701 can provide support for the rotating shaft 2 through the groove 703, making the rotating shaft 2 less prone to deformation under force. The upright plate 702 can improve the compressive strength of the support frame 701. By applying grease inside the groove 703, the friction between the rotating shaft 2 and the groove 703 can be reduced, ensuring the drive component 5 drives the rotating shaft 2. When it is necessary to adjust the bending angle of the steel plate, the operator drives the worm 502 through the electromagnetic brake motor 504 of the drive component 5. The worm 502 can drive one of the rotating shafts 2 to rotate through the worm wheel 503. The two gears 6 can make the two rotating shafts 2 rotate in opposite directions, and the two lower dies 3 can move synchronously, so that the angle between the two lower dies 3 can be adjusted in the center. After the rotating shaft 2 is rotated, the electromagnetic brake motor 504, together with the worm gear 502 and worm wheel 503, can achieve self-locking of the rotating shaft 2, which can prevent it from rotating under pressure. After the angle of the lower mold 3 is adjusted, the operator can disassemble the upper mold 905 of the pressing assembly 9 and replace it with an upper mold 905 that matches the angle of the lower mold 3, so that the lower mold 3 does not need to be disassembled.

[0021] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bending device for steel plates, comprising a frame (1), characterized in that: The bottom of the frame (1) is provided with two rotating shafts (2), the surface of the rotating shafts (2) is fixedly provided with a lower mold (3), one end of the rotating shafts (2) is fixedly provided with a gear (6) for transmission, the bottom of one side of the frame (1) is provided with a drive assembly (5) for driving the rotating shafts (2), the bottom of the frame (1) is provided with a support assembly (7) for supporting the rotating shafts (2), and a hydraulic cylinder (8) is fixedly installed in the middle of the top of the frame (1), and the hydraulic rod of the hydraulic cylinder (8) is connected to a pressing assembly (9).

2. The bending device for steel plates according to claim 1, characterized in that: The drive assembly (5) includes a frame (501), one side of which is fixedly connected to the bottom of one side of the frame (1). A worm (502) is rotatably connected inside the frame (501). A worm wheel (503) is meshed with the worm (502). The middle part of one side of the worm wheel (503) is fixedly connected to one end of one of the rotating shafts (2). An electromagnetic brake motor (504) for driving the worm (502) is fixedly installed on one side of the frame (501).

3. The bending device for steel plates according to claim 1, characterized in that: The surfaces of the two lower molds (3) are provided with mutually staggered sliding grooves (4), and the two lower molds (3) are slidably connected through the sliding grooves (4).

4. The bending device for steel plates according to claim 1, characterized in that: The support assembly (7) includes a support frame (701), and several upright plates (702) are fixedly provided inside the support frame (701). Grooves (703) corresponding to the rotating shaft (2) are opened on both sides of the top of the support frame (701), and the inside of the grooves (703) is coated with grease.

5. The bending device for steel plates according to claim 4, characterized in that: Mounting plates (704) are fixedly installed on the bottom of both sides of the support frame (701), and the bottom end of the mounting plate (704) is fixedly connected to the inner wall of the bottom end of the frame (1) by bolts.

6. The bending device for steel plates according to claim 1, characterized in that: The pressing assembly (9) includes a lifting plate (901). The hydraulic rod of the hydraulic cylinder (8) is fixedly connected to the middle of the top of the lifting plate (901) through a mounting plate. The bottom end of the lifting plate (901) is fixedly provided with a mounting seat (903). One side of the mounting seat (903) is fixedly installed with a mounting strip (904) by bolts. The bottom end of the mounting strip (904) is fixedly connected with an upper mold (905).

7. The bending device for steel plates according to claim 6, characterized in that: The lifting plate (901) is fixedly provided with guide sleeves (902) at all four corners, and two guide posts (10) are fixedly provided on the inner walls of both sides of the top of the frame (1). The guide sleeves (902) and the guide posts (10) are slidably connected.

8. The bending device for steel plates according to claim 7, characterized in that: The inner walls of the bottom sides of the frame (1) are fixedly provided with support plates (11), the bottom end of the guide column (10) is fixedly connected to the top end of the support plate (11), and the bottom sides of the support plate (11) are welded with reinforcing plates (12) to strengthen it.

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