Metal plate bending device

Abstract

The utility model belongs to the technical field of sheet metal processing, and relates to a sheet metal bending device which comprises a base, an upper bending die is arranged above the base in a lifting mode, a first movable plate is arranged on the top of the base in a rotating mode, a lower bending die is fixedly connected to the top of the first movable plate, and the lower bending die is matched with the upper bending die. A sliding block is horizontally arranged on the top of the base in a sliding mode, a second movable plate is hinged between the sliding block and the first movable plate, a lifting piece is arranged above the base, and the lifting piece drives the upper bending die to vertically move up and down. A transmission part is arranged on the base, and when the lifting part drives the upper bending die to move, the transmission part drives the sliding block to horizontally slide. The lower bending die has the advantages that one end of the first movable plate is jacked up by the second movable plate through the sliding block, the lower bending die is rotated to be in an inclined state, a plate can slide onto a slope, automatic discharging is achieved, a new plate can be directly placed, and working efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of sheet metal processing technology and relates to a sheet metal bending device. Background Technology

[0002] A distribution box is an electrical piece of equipment. Its production involves processing multiple sheet metal parts and then welding them together to assemble the distribution box. The sheet metal processing requires bending equipment to bend the sheet metal.

[0003] A sheet metal distribution box processing plate bending machine disclosed in Chinese patent CN220805042U includes a bending base. Upper support columns are fixedly installed at the four corners of the upper surface of the bending base. A bending worktable is connected between the tops of the four upper support columns. A lower bending die is fixedly installed at the center of the upper surface of the bending worktable. A top material groove is opened on one side of the lower bending die. The bottom of the top material groove passes through the lower bending die and the bending worktable.

[0004] This bending machine uses a top material motor to drive the top material cylinder upwards, thus lifting the bent sheet metal upwards. After being lifted, the sheet metal still falls onto the lower bending die, requiring workers to remove the bent sheet metal before a new sheet metal can be placed, resulting in low work efficiency.

[0005] To solve the above problems, this utility model proposes a sheet metal bending device. Utility Model Content

[0006] To address the problems existing in the background technology, this utility model proposes a sheet metal bending device.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows: it includes a base, an upper bending mold is provided above the base and a first movable plate is provided on the top of the base and a lower bending mold is fixedly connected to the top of the first movable plate, and the lower bending mold is adapted to the upper bending mold.

[0008] The top of the base is horizontally slidably provided with a slider, and a second movable plate is hinged between the slider and the first movable plate;

[0009] A lifting component is provided above the base, which drives the upper bending die to move vertically up and down; a transmission component is provided on the base, which drives the slider to slide horizontally when the lifting component drives the upper bending die to move.

[0010] Furthermore, the lifting component includes two cylinders, and an L-shaped support frame is fixedly connected to the top of the base. The two cylinders are symmetrically fixedly connected to the top of the support frame, and the output ends of the two cylinders slide through the top surface of the support frame.

[0011] The top of the upper bending die is fixedly connected to a mounting plate, which is fixedly connected to the bottom of the output ends of the two cylinders.

[0012] Furthermore, a hinge block is fixedly connected to one end of the top of the base, one end of the first movable plate is rotatably connected to the hinge block, one end of the second movable plate is rotatably connected to the other end of the first movable plate, and the other end of the second movable plate is rotatably connected to the top of the slider.

[0013] Furthermore, the transmission component includes a connecting rod, which is vertically arranged, with its top end fixedly connected to the bottom of the mounting plate, and a rack fixedly connected to one side of its bottom end;

[0014] The top of the base is provided with a sliding groove, and the slider is slidably connected to the inside of the sliding groove. A lead screw is rotatably connected inside the sliding groove, and the slider is threaded onto the lead screw.

[0015] One end of the lead screw rotates through the end face of the slide groove, and the end of the lead screw extending outside the slide groove is fixedly connected to a gear, which meshes with the rack.

[0016] Furthermore, a damping pad is fixedly fitted at one end of the lead screw near the gear, and the damping pad is located between the outer side of the gear and the base.

[0017] Furthermore, a ramp is fixedly connected to the side of the base near the hinge block, and the slope of the ramp gradually slopes downward from one end near the base to the other end.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. After the sheet metal bending device bends the sheet metal using the upper and lower bending dies, the cylinder drives the upper bending die to move upward, leaving the sheet metal on top of the lower bending die. The cylinder continues to drive the connecting rod upward, and the rack drives the gear and lead screw to rotate, causing the slider to slide towards the end close to the hinge block. This causes the second movable plate to lift one end of the first movable plate, rotating the lower bending die to an inclined state, allowing the sheet metal to slide onto the slope for automatic unloading. This allows for the direct placement of new sheet metal, improving work efficiency.

[0020] 2. The sheet metal bending device is equipped with a connecting rod, and a rack is fixedly connected to the bottom end of the connecting rod. When the upper bending die is moved by the cylinder for mold closing or opening, the rack can drive the first movable plate to rotate, eliminating the need to drive the upper bending die to move and the first movable plate to rotate separately, thus reducing production costs. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the lower bending die rotating to a horizontal state in this utility model;

[0022] Figure 2 This is a utility model Figure 1 A schematic diagram of the middle slider;

[0023] Figure 3 This is a schematic diagram of the lower bending die rotating to an inclined state in this utility model;

[0024] Figure 4 This is a utility model Figure 3 A schematic diagram of the middle slider.

[0025] In the diagram: 1. Base; 2. First movable plate; 3. Second movable plate; 4. Slide groove; 5. Rack; 6. Gear; 7. Connecting rod; 8. Upper bending die; 9. Cylinder; 10. Mounting plate; 11. Lower bending die; 12. Hinge block; 13. Ramp; 14. Slider; 15. Lead screw; 16. Support frame. Detailed Implementation

[0026] 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.

[0027] like Figures 1-4 As shown, the technical solution adopted by this utility model is as follows: a sheet metal bending device, including a base 1, and an upper bending mold 8 is lifted and lowered above the base 1.

[0028] A lifting component is provided above the base 1, which drives the bending mold 8 to move vertically up and down.

[0029] The lifting component includes two cylinders 9. An L-shaped support frame 16 is fixedly connected to the top of the base 1, and the two cylinders 9 are symmetrically fixedly connected to the top of the support frame 16. The output ends of both cylinders 9 slide through the top surface of the support frame 16.

[0030] A mounting plate 10 is fixedly connected to the top of the upper bending die 8, and the mounting plate 10 is fixedly connected to the bottom of the output ends of two cylinders 9. The output ends of the cylinders 9 push the mounting plate 10 to move up and down, thereby driving the upper bending die 8 to move up and down.

[0031] A first movable plate 2 is rotatably mounted on the top of the base 1, and a lower bending die 11 is fixedly connected to the top of the first movable plate 2. The lower bending die 11 is adapted to the upper bending die 8. The lower bending die 11 and the upper bending die 8 cooperate to facilitate bending of the sheet material.

[0032] A slider 14 is horizontally slidably mounted on the top of the base 1, and a second movable plate 3 is hinged between the slider 14 and the first movable plate 2. When the slider 14 slides, it pushes the first movable plate 2 to rotate through the second movable plate 3, thereby causing the lower bending die 11 to rotate.

[0033] A hinge block 12 is fixedly connected to one end of the top of the base 1, and one end of the first movable plate 2 is rotatably connected to the hinge block 12. The hinge block 12 positions one end of the first movable plate 2 on the base 1. One end of the second movable plate 3 is rotatably connected to the other end of the first movable plate 2, and the other end of the second movable plate 3 is rotatably connected to the top of the slider 14.

[0034] A ramp 13 is fixedly connected to the side of the base 1 near the hinge block 12. The ramp 13 slopes downward from one end near the base 1 to the other end. This causes the sheet material on the lower bending die 11 to slide onto the ramp 13 for unloading when the lower bending die 11 rotates.

[0035] A transmission component is provided on the base 1. When the lifting component drives the upper bending die 8 to move, the transmission component drives the slider 14 to slide horizontally.

[0036] The transmission component includes a connecting rod 7, which is vertically arranged. The top end of the connecting rod 7 is fixedly connected to the bottom of the mounting plate 10, and a rack 5 is fixedly connected to one side of the bottom end of the connecting rod 7. This allows the mounting plate 10 to drive the connecting rod 7 and the rack 5 to move up and down.

[0037] The top of the base 1 has a groove 4, and the slider 14 is slidably connected inside the groove 4. The slider 14 is positioned by the groove 4. A lead screw 15 is rotatably connected inside the groove 4, and the slider 14 is threaded onto the lead screw 15. When the lead screw 15 rotates, it drives the slider 14 to slide inside the groove 4.

[0038] One end of the lead screw 15 rotates through the end face of the slide groove 4, and the end of the lead screw 15 extending outside the slide groove 4 is fixedly connected to a gear 6, which meshes with a rack 5. When the rack 5 moves to the gear 6, it drives the gear 6 to rotate, thereby causing the lead screw 15 to rotate.

[0039] A damping pad is fixedly fitted at one end of the lead screw 15 near the gear 6, and the damping pad is located between the gear 6 and the outer side of the base 1. This creates friction between the damping pad and the outer side of the base 1, thereby positioning the gear 6 on the base 1. The gear 6 can only rotate when driven by the rack 5.

[0040] Working principle:

[0041] In the initial state, rack 5 is disengaged from gear 6, and rack 5 is located at the bottom of gear 6. The first movable plate 2 and the lower bending die 11 are in a horizontal state. The sheet material to be bent is placed on top of the lower bending die 11.

[0042] Start cylinder 9, and the output end of cylinder 9 pushes the mounting plate 10 downward. The mounting plate 10 drives the upper bending die 8 downward, causing the upper bending die 8 to move towards the top of the sheet material.

[0043] The mounting plate 10 simultaneously drives the connecting rod 7 and the rack 5 to move downwards, with the rack 5 moving downwards towards the gear 6. At this time, the gear 6 will not rotate.

[0044] The upper bending die 8 presses the sheet material downwards, and the sheet material is bent by cooperating with the lower bending die 11.

[0045] The output end of cylinder 9 pulls the mounting plate 10 upward, causing the upper bending die 8 to leave the sheet metal. The sheet metal remains on top of the lower bending die 11. The mounting plate 10 then drives the connecting rod 7 and the rack 5 upward.

[0046] When rack 5 moves to mesh with gear 6, there is a distance between upper bending die 8 and lower bending die 11. This ensures that lower bending die 11 will not collide with upper bending die 8 when it rotates subsequently.

[0047] The rack 5 drives the gear 6 to rotate, causing the lead screw 15 to rotate. The lead screw 15 drives the slider 14 to slide inside the groove 4, causing one end of the second movable plate 3 to move closer to the hinge block 12.

[0048] The other end of the second movable plate 3 will push one end of the first movable plate 2 upward, causing the other end of the first movable plate 2 to rotate on the hinge block 12. This causes the first movable plate 2 to drive the lower bending die 11 to rotate upward, causing the sheet material to slide downward onto the ramp 13.

[0049] When used again, cylinder 9 pushes the mounting plate 10 and the upper bending die 8 downwards. The rack 5 drives the gear 6 to rotate, causing the slider 14 to move one end of the second movable plate 3 away from the hinge block 12. The second movable plate 3 then pulls the first movable plate 2 to gradually rotate to a horizontal position.

[0050] After the rack 5 disengages from the gear 6, the first movable plate 2 and the lower bending die 11 rotate to a horizontal position. This prevents the rack 5 from driving the gear 6 to rotate as it continues to move downward, thus facilitating the continuation of the bending operation.

[0051] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A sheet metal bending device, characterized by comprising: Includes a base (1), an upper bending mold (8) is provided above the base (1) and a first movable plate (2) is provided on the top of the base (1) and a lower bending mold (11) is fixedly connected to the top of the first movable plate (2). The lower bending mold (11) is adapted to the upper bending mold (8). A slider (14) is horizontally slidably provided on the top of the base (1), and a second movable plate (3) is hinged between the slider (14) and the first movable plate (2); A lifting component is provided above the base (1), which drives the upper bending mold (8) to move vertically up and down; a transmission component is provided on the base (1), and when the lifting component drives the upper bending mold (8) to move, the transmission component drives the slider (14) to slide horizontally.

2. The sheet metal bending device according to claim 1, characterized in that: The lifting component includes two cylinders (9), and an L-shaped support frame (16) is fixedly connected to the top of the base (1). The two cylinders (9) are symmetrically fixedly connected to the top of the support frame (16), and the output ends of the two cylinders (9) slide through the top surface of the support frame (16). The top of the upper bending die (8) is fixedly connected to a mounting plate (10), which is fixedly connected to the bottom of the output end of the two cylinders (9).

3. The device according to claim 1, characterized in that: A hinge block (12) is fixedly connected to one end of the top of the base (1). One end of the first movable plate (2) is rotatably connected to the hinge block (12). One end of the second movable plate (3) is rotatably connected to the other end of the first movable plate (2). The other end of the second movable plate (3) is rotatably connected to the top of the slider (14).

4. The sheet metal bending device of claim 2, wherein: The transmission component includes a connecting rod (7), which is vertically arranged. The top end of the connecting rod (7) is fixedly connected to the bottom of the mounting plate (10), and a rack (5) is fixedly connected to one side of the bottom end of the connecting rod (7). The top of the base (1) is provided with a groove (4), and the slider (14) is slidably connected to the inside of the groove (4). The inside of the groove (4) is rotatably connected to a lead screw (15), and the slider (14) is threaded onto the lead screw (15). One end of the lead screw (15) rotates through the end face of the slide groove (4), and a gear (6) is fixedly connected to the end of the lead screw (15) that extends outside the slide groove (4). The gear (6) meshes with the rack (5).

5. The device according to claim 4, characterized in that: A damping pad is fixedly fitted at one end of the lead screw (15) near the gear (6), and the damping pad is located between the outer side of the gear (6) and the base (1).

6. The device according to claim 3, characterized in that: The base (1) is fixedly connected to a ramp (13) on the side near the hinge block (12), and the ramp (13) slopes downward from one end near the base (1) to the other end.

Images