A CNC bending device for sheet metal

Abstract

This utility model belongs to the field of bending devices, specifically a CNC bending device for metal sheet metal. It includes a base, with a bending assembly at the top for bending metal sheet metal. A second gear and a first gear are rotatably connected to the bottom of the base. A first motor is fixedly mounted on the bottom of the base, with its output end fixedly connected to the first gear. A sliding groove is fixedly connected to the top of the second gear. A second motor is fixedly connected to one side of the sliding groove. A screw is fixedly connected to the output end of the second motor, and the screw passes through the sliding groove and is rotatably connected. A slider is threaded onto the outer wall of the screw. Through the cooperation of the first and second gears, starting the first motor adjusts the angle of the sliding groove, thereby feeding the bending assembly in multiple directions to meet various bending requirements of metal sheet metal.

Description

Technical Field

[0001] This utility model relates to the field of bending devices, specifically a CNC bending device for sheet metal. Background Technology

[0002] Sheet metal processing is a manufacturing technology that uses processes such as cutting, bending, and stamping to process metal sheets into the required shapes. It is widely used in equipment manufacturing, aerospace, electronics and other fields.

[0003] When processing sheet metal, it is generally necessary to bend it to form side walls, door panels or mounting edges, or bend it 90° to form bolt connection surfaces.

[0004] In existing technologies, when bending sheet metal, the sheet metal is usually fed along the direction perpendicular to the bending machine. However, during use and observation, it has been found that this method is difficult to meet production needs when there is a need for oblique bending of the sheet metal.

[0005] Therefore, a CNC bending device for sheet metal is proposed to address the above problems. Utility Model Content

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by this utility model to solve its technical problem is as follows: A CNC bending device for sheet metal, comprising a base, a bending assembly at the top of the base for bending sheet metal; a second gear and a first gear rotatably connected to the bottom of the base; a first motor fixedly installed at the bottom of the base, with its output end fixedly connected to the first gear; a sliding groove fixedly connected to the top of the second gear; a second motor fixedly connected to one side of the sliding groove; a screw fixedly connected to the output end of the second motor, with the screw penetrating and rotatably connected to the sliding groove; a slider threadedly connected to the outer wall of the screw; a sliding connection between the slider and the inner wall of the sliding groove; a fixing assembly at the top of the slider for fixing the sheet metal; through the cooperation of the first and second gears, starting the first motor adjusts the angle of the sliding groove, thereby feeding the bending assembly in multiple directions to meet various bending requirements of sheet metal.

[0008] Preferably, the fixing component includes a vacuum suction cup; the surface of the vacuum suction cup has multiple air inlets; the vacuum suction cup is fixedly connected to the top of the slider; the bottom of the vacuum suction cup is connected to an air extraction pipe; through the cooperation of the vacuum suction cup and the air extraction pipe, the vacuum pump connected to the air extraction pipe can be started to adsorb and fix the metal sheet metal on the top of the vacuum suction cup, simplifying the required operation for fixing the metal sheet metal.

[0009] Preferably, the inner wall of the vacuum suction cup is fixedly equipped with multiple return springs; the return springs are correspondingly arranged with the air inlet; a plug is fixedly attached to the top of the return spring; the top of the plug is open, and the upper half of the side is perforated; through the cooperation of the return springs and the plug, when the metal sheet is not placed on the top of the vacuum suction cup, or at the air inlet where the surface of the vacuum suction cup is not in contact with the metal sheet, the plug will be in a plate-like state under the elastic force of the return spring. At this time, the inside of the vacuum suction cup is isolated from the outside, that is, the plug will... The vacuum suction cup is sealed. When the sheet metal is placed on the surface of the vacuum suction cup, the plug can be squeezed to move it down until the top of the plug is flush with the surface of the vacuum suction cup. At this time, the hole part on the surface of the plug enters the interior of the vacuum suction cup, making the interior of the vacuum suction cup connected to the outside. The opening at the top of the plug is in a negative pressure state to achieve adsorption of the bottom of the sheet metal. That is, the plug releases the seal on the vacuum suction cup. This allows the vacuum suction cup to prevent dust and impurities in the surrounding processing environment from entering the interior of the vacuum suction cup when it is not adsorbing the sheet metal.

[0010] Preferably, a mesh plate is fixed to the top of the plug; by setting the mesh plate, the mesh plate can reduce the impurities that diffuse into the interior of the plug through the opening at the top of the plug when the vacuum suction cup is idle, thereby reducing the clogging effect of these impurities on the holes on the side of the plug.

[0011] Preferably, at least one pair of spring telescopic rods are fixedly connected to the bottom of the vacuum suction cup; the pair of spring telescopic rods are located on both sides of the slide groove; a connecting plate is fixedly connected to the bottom of the spring telescopic rods; a plurality of ball bearings are rotatably connected to the bottom of the connecting plate; when the second motor is started to drive the slider and the vacuum suction cup to transport the metal sheet, the connecting plate and the ball bearings can contact the top of the base and provide additional support for the vacuum suction cup, thereby redistributing the center of gravity of the vacuum suction cup and improving its stability, while the spring telescopic rods can adapt to the horizontal errors caused by the processing of the base surface.

[0012] Preferably, the top of the base is symmetrically fixed with fixing plates; the slide is located inside a pair of fixing plates; by setting the fixing plates, the fixing plates can limit the rotation angle of the slide, avoiding excessive adjustment that could lead to collisions with other components; the inner wall of the fixing plates can be provided with a buffer layer to reduce the impact generated when accidentally colliding with the slide.

[0013] The advantages of this utility model are: 1. The metal sheet CNC bending device of this utility model, through the cooperation of the first gear and the second gear, starts the first motor to adjust the angle of the slide, thereby feeding the bending component in multiple directions to meet the various bending requirements of metal sheet.

[0014] 2. The metal sheet CNC bending device of this utility model can adsorb and fix the metal sheet on the top of the vacuum suction cup by starting the vacuum pump connected to the vacuum suction pipe through the cooperation of the vacuum suction cup and the air extraction pipe, thus simplifying the required operation for fixing the metal sheet. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the main body of this utility model; Figure 2 This is a schematic diagram of the structure of the first motor in this utility model; Figure 3 This is a schematic diagram of the slide groove in this utility model; Figure 4 This is a schematic diagram of the vacuum chuck in this utility model; Figure 5 This is a schematic diagram of the spring telescopic rod in this utility model.

[0017] In the diagram: 1. Base; 12. Bending assembly; 13. First motor; 14. First gear; 15. Second gear; 16. Slide groove; 17. Second motor; 18. Screw; 19. Slider; 2. Vacuum suction cup; 22. Air extraction pipe; 3. Return spring; 32. Plug; 4. Mesh plate; 5. Spring telescopic rod; 52. Connecting plate; 53. Ball bearing; 6. Fixing 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 scope of protection of the present utility model.

[0019] Specific implementation examples are given below.

[0020] Please see Figures 1 to 5As shown in the figure, a CNC bending device for sheet metal according to an embodiment of the present invention includes a base 1, a bending assembly 12 on the top of the base 1 for bending sheet metal; a second gear 15 and a first gear 14 are rotatably connected to the bottom of the base 1; a first motor 13 is fixedly installed on the bottom of the base 1, and the output end of the first motor 13 is fixedly connected to the first gear 14; a slide groove 16 is fixedly connected to the top of the second gear 15; a second motor 17 is fixedly connected to one side of the slide groove 16; a screw 18 is fixedly connected to the output end of the second motor 17, and the screw 18 and the slide groove 16 are through-connected and rotatably connected; a slider 19 is threadedly connected to the outer wall of the screw 18; the slider 19 is slidably connected to the inner wall of the slide groove 16; a fixing assembly is provided on the top of the slider 19 for fixing the sheet metal; during operation, the angle between the slide groove 16 and the bending assembly 12 can be adjusted according to the bending requirements, specifically by starting the first motor 15. 3. The first gear 14 is driven to rotate, and the first gear 14 can mesh with the second gear 15 to make the second gear 15 rotate. The second gear 15 can drive the slide 16 to rotate, thereby changing the included angle between the slide 16 and the bending assembly 12. Then, the metal sheet can be placed on the fixing assembly and fixed. The second motor 17 is started to drive the screw 18 to rotate. When the screw 18 rotates, it can drive the slider 19 to slide laterally along the slide 16 under the action of thread transmission. Then, the slider 19 can bend and feed the metal sheet through the fixing assembly, and send the metal sheet to the bending assembly 12. The bending assembly 12 specifically includes a bending upper die and a bending lower die, which can bend the metal sheet. Since it is mature existing technology, it is only shown here. Through the cooperation of the first gear 14 and the second gear 15, the first motor 13 can be started to adjust the angle of the slide 16, thereby feeding the bending assembly 12 in multiple directions to meet the various bending requirements of the metal sheet.

[0021] Please see Figures 1 to 4 As shown, the fixing component includes a vacuum suction cup 2; the surface of the vacuum suction cup 2 has multiple air inlets; the vacuum suction cup 2 is fixedly connected to the top of the slider 19; the bottom of the vacuum suction cup 2 is connected to an air extraction pipe 22; when it is necessary to fix the metal sheet, the large surface of the metal sheet can be placed above the vacuum suction cup 2, and the small surface to be processed is located on the outside of the vacuum suction cup 2. By starting the vacuum pump connected to the air extraction pipe 22, the surface of the vacuum suction cup 2 can adsorb and fix the metal sheet under negative pressure, realizing the device's rapid fixation of the metal sheet; through the cooperation of the vacuum suction cup 2 and the air extraction pipe 22, starting the vacuum pump connected to the air extraction pipe 22 can adsorb and fix the metal sheet on the top of the vacuum suction cup 2, simplifying the required operation for fixing the metal sheet.

[0022] Please see Figure 4 and Figure 5As shown, multiple return springs 3 are fixed to the inner wall of the vacuum suction cup 2; the return springs 3 are correspondingly arranged with the air inlet; a plug 32 is fixed to the top of the return spring 3; the top of the plug 32 is open, and the upper half of the side is perforated; through the cooperation of the return springs 3 and the plug 32, when the metal sheet is not placed on the top of the vacuum suction cup 2, or at the air inlet where the surface of the vacuum suction cup 2 is not in contact with the metal sheet, the plug 32 will be in the state of the graphic plate 4 under the elastic force of the return springs 3. At this time, the vacuum suction cup 2 is isolated from the outside world, that is, the plug 32 will... The vacuum suction cup 2 is sealed. When the metal sheet is placed on the surface of the vacuum suction cup 2, the plug 32 can be squeezed to move it down until the top of the plug 32 is flush with the surface of the vacuum suction cup 2. At this time, the hole part on the surface of the plug 32 enters the interior of the vacuum suction cup 2 and makes the interior of the vacuum suction cup 2 connected to the outside. The top opening of the plug 32 is in a negative pressure state to achieve adsorption of the bottom of the metal sheet. That is, the plug 32 releases the seal on the vacuum suction cup 2. This can prevent dust and impurities in the surrounding processing environment from entering the interior of the vacuum suction cup 2 when the vacuum suction cup 2 is not adsorbing the metal sheet.

[0023] Please see Figure 4 As shown, a mesh plate 4 is fixed to the top of the plug 32; by setting the mesh plate 4, the mesh plate 4 can reduce the impurities that diffuse into the interior of the plug 32 through the top opening of the plug 32 when the vacuum suction cup 2 is idle, thereby reducing the blocking effect of these impurities on the side holes of the plug 32.

[0024] Please see Figure 4 and Figure 5 As shown, at least one pair of spring telescopic rods 5 are fixedly connected to the bottom of the vacuum suction cup 2; the pair of spring telescopic rods 5 are located on both sides of the slide groove 16; a connecting plate 52 is fixedly connected to the bottom of the spring telescopic rods 5; a plurality of ball bearings 53 are rotatably connected to the bottom of the connecting plate 52; when the second motor 17 is started to drive the slider 19 and the vacuum suction cup 2 to transport the metal sheet, the connecting plate 52 and the ball bearings 53 can contact the top of the base 1 and provide additional support for the vacuum suction cup 2, thereby redistributing the center of gravity of the vacuum suction cup 2 and improving its stability, while the spring telescopic rods 5 can adapt to the horizontal error caused by the processing of the surface of the base 1.

[0025] Please see Figure 1 As shown, the top of the base 1 is symmetrically fixed with a fixing plate 6; the slide 16 is located inside a pair of fixing plates 6; by setting the fixing plate 6, the fixing plate 6 can limit the rotation angle of the slide 16 to avoid excessive adjustment leading to collision with other components. The inner wall of the fixing plate 6 can be provided with a buffer layer to reduce the impact generated when it accidentally collides with the slide 16.

[0026] Working principle: The angle between the slide groove 16 and the bending assembly 12 is adjusted according to the bending requirements. Specifically, the first motor 13 is started to drive the first gear 14 to rotate. The first gear 14 can mesh with the second gear 15, causing the second gear 15 to rotate. The second gear 15 can drive the slide groove 16 to rotate, thereby changing the angle between the slide groove 16 and the bending assembly 12. Then, the sheet metal can be placed on the fixing assembly and fixed. The second motor 17 is started to drive the screw 18 to rotate. When the screw 18 rotates, it can drive the slider 19 to slide laterally along the slide groove 16 under the action of thread transmission. Thus, the slider 19 can bend and feed the sheet metal through the fixing assembly, sending the sheet metal to the bending position. At bending component 12, specifically including an upper and lower bending die, it can bend sheet metal. This is a mature existing technology, so it is only shown here for illustration. When it is necessary to fix the sheet metal, the large surface of the sheet metal can be placed above the vacuum suction cup 2, and the small surface to be processed can be located on the outside of the vacuum suction cup 2. By starting the vacuum pump connected to the air extraction pipe 22, the surface of the vacuum suction cup 2 can be used to adsorb and fix the sheet metal under negative pressure, realizing the device to quickly fix the sheet metal. Through the cooperation of the return spring 3 and the plug 32, when the sheet metal is not placed on the top of the vacuum suction cup 2, or at the air inlet where the surface of the vacuum suction cup 2 is not in contact with the sheet metal, the plug 32 will be in the state of the drawing plate 4 under the elastic force of the return spring 3. At this time, the vacuum suction cup 2 is isolated from the outside world, meaning the plug 32 seals the vacuum suction cup 2. When the metal sheet is placed on the surface of the vacuum suction cup 2, the plug 32 can be squeezed down until the top of the plug 32 is flush with the surface of the vacuum suction cup 2. At this point, the holes on the surface of the plug 32 enter the interior of the vacuum suction cup 2, making the interior of the vacuum suction cup 2 connected to the outside world. The top opening of the plug 32 is in a negative pressure state to achieve adsorption of the bottom of the metal sheet, meaning the plug 32 releases its seal on the vacuum suction cup 2. This allows the vacuum suction cup 2 to prevent dust and impurities from the surrounding processing environment from entering the interior of the vacuum suction cup 2 when it is not adsorbing the metal sheet. By setting the mesh plate 4, the mesh plate 4 can reduce the risk of dust and impurities entering the vacuum suction cup 2 when it is idle. The opening at the top of the plug 32 diffuses impurities into the interior of the plug 32, thereby reducing the clogging effect of these impurities on the side holes of the plug 32. When the second motor 17 is started to drive the slider 19 and the vacuum suction cup 2 to transport the sheet metal, the connecting plate 52 and the ball 53 can contact the top of the base 1 and provide additional support for the vacuum suction cup 2, thereby redistributing the center of gravity of the vacuum suction cup 2 and improving its stability. The spring telescopic rod 5 can adapt to the horizontal error caused by the processing of the surface of the base 1. By setting the fixing plate 6, the fixing plate 6 can limit the rotation angle of the slide 16 to avoid excessive adjustment and collision with other components. The inner wall of the fixing plate 6 can be provided with a buffer layer to reduce the impact generated when it accidentally collides with the slide 16.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A metal plate numerical control bending device, comprising a base (1), the top of the base (1) is provided with a bending assembly (12), the bending assembly (12) is used for bending the metal plate; characterized in that: The bottom of the base (1) is rotatably connected to a second gear (15) and a first gear (14); a first motor (13) is fixedly installed at the bottom of the base (1), and the output end of the first motor (13) is fixedly connected to the first gear (14); a slide groove (16) is fixedly connected to the top of the second gear (15); a second motor (17) is fixedly connected to one side of the slide groove (16); a screw (18) is fixedly connected to the output end of the second motor (17), and the screw (18) and the slide groove (16) are through-connected and rotatably connected; a slider (19) is threadedly connected to the outer wall of the screw (18); the slider (19) is slidably connected to the inner wall of the slide groove (16); a fixing component is provided on the top of the slider (19), which is used to fix the metal sheet.

2. The metal plate numerical control bending device according to claim 1, characterized in that: The fixing component includes a vacuum suction cup (2); the surface of the vacuum suction cup (2) is provided with multiple air inlets; the top of the vacuum suction cup (2) is fixedly connected to the top of the slider (19); the bottom of the vacuum suction cup (2) is connected to an air extraction pipe (22).

3. The metal plate numerical control bending device according to claim 2, characterized in that: The inner wall of the vacuum suction cup (2) is fixed with multiple return springs (3); the return springs (3) are corresponding to the air inlet; a plug (32) is fixed to the top of the return springs (3); the top of the plug (32) is open, and the upper half of the side is multi-hole.

4. The metal plate numerical control bending device according to claim 3, characterized in that: A mesh plate (4) is fixed to the top of the plug (32).

5. The metal plate numerical control bending device according to claim 4, characterized in that: At least one pair of spring telescopic rods (5) are fixedly connected to the bottom of the vacuum suction cup (2); the pair of spring telescopic rods (5) are located on both sides of the slide groove (16); a connecting plate (52) is fixedly connected to the bottom of the spring telescopic rods (5); a plurality of ball bearings (53) are rotatably connected to the bottom of the connecting plate (52).

6. The metal plate numerical control bending device according to claim 5, characterized in that: The base (1) is symmetrically fixed to the top of the fixing plate (6); the slide (16) is located inside the pair of fixing plates (6).

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