A bending machine electric front material supporting device and a bending machine

Abstract

This invention discloses an electric front support device for a bending machine and a bending machine, relating to the field of bending machine technology. The invention includes a cylinder installed between a lifting mechanism and a carrying mechanism. The cylinder is used to lift and lower a chain block in the middle of the carrying mechanism to fit a recessed sheet metal. An angle adjustment mechanism is installed at one end of the carrying mechanism to adjust the angle of the chain block at the feeding end of the carrying mechanism to fit sheet metal with different bending degrees. This invention places the inclined bending area of ​​the sheet metal on a support rod and a rubber sleeve forming that area, with the sheet metal fitting snugly against them. This allows both ends of the sheet metal to be placed horizontally on the rubber sleeve, allowing one end of the sheet metal to pass smoothly through the bending opening of the bending machine, thereby avoiding tilting of the sheet metal during placement and affecting the bending effect.

Description

Technical Field

[0001] This invention relates to the field of bending machine technology, specifically to an electric front material support device for a bending machine and a bending machine. Background Technology

[0002] The electric front support device for bending machines is an important auxiliary device that can dynamically provide support and rotation during the bending process of sheet metal, helping to improve bending accuracy and efficiency and reduce labor intensity.

[0003] Existing electric front support devices for bending machines are mainly designed for bending flat sheet metal. When bending L-shaped sheet metal or sheet metal at other angles, due to the angle limitation of the L-shaped plate and the flat design of the existing support device, the sheet metal at different angles cannot be placed flat on the support device when the support device is rotated. Instead, it protrudes on the support device. When the sheet metal is placed on the support device, its two ends are tilted relative to the upper surface of the support device. As a result, one end of the sheet metal cannot pass horizontally through the bending opening of the bending machine, which limits the rotation and bending of sheet metal at different angles and affects the bending effect. To address the above problems, the inventor proposes an electric front support device for bending machines and a bending machine to solve the above problems. Summary of the Invention

[0004] To address the limitations of existing material support devices in bending sheet metal at different angles, the present invention aims to provide an electric front material support device for a bending machine and a bending machine.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: an electric front support device for a bending machine, comprising a lifting mechanism, a chain block and a bearing mechanism, wherein the bearing mechanism is installed on the top of the lifting mechanism;

[0006] The lifting mechanism raises and lowers the carrying mechanism, and the carrying mechanism rotates.

[0007] The inner side of the bearing mechanism is provided with six chain blocks, three in a group, and two groups of chain blocks are respectively provided on the inner sides of both ends of the bearing mechanism, and several chain blocks are rotatably connected to each other.

[0008] A cylinder is installed between the lifting mechanism and the bearing mechanism. The cylinder is used to lift the chain block in the middle of the bearing mechanism to fit the recessed sheet metal.

[0009] An angle adjustment mechanism is installed at one end of the bearing mechanism. The angle adjustment mechanism adjusts the angle of the chain block at the feeding end of the bearing mechanism to fit sheet metal with different degrees of bending.

[0010] Preferably, the lifting mechanism includes a carrier, a drive motor, and a rotating arm. The drive motor is mounted on the upper surface of the carrier, and the rotating arm is rotatably connected to the upper surface of the carrier. The output shaft of the drive motor is connected to the rotating shaft of the rotating arm. A swing arm is rotatably connected to one end of the rotating arm, and a moving platform is rotatably connected to one end of the swing arm. A U-shaped rod is fixedly connected to one end of the moving platform, and protruding rods are fixedly connected to both ends of the top of the U-shaped rod. A shaft plate is fixedly connected to the outer wall of the protruding rod.

[0011] Preferably, the bearing mechanism includes a slider, a track frame, an I-beam frame, a damping spring, and a shaft. The shaft passes through both ends of the slider and is rotatably connected. The track frame is fixedly connected to one end of the shaft. Two chain blocks are fixedly connected to the outer wall of the shaft. Both ends of the I-beam frame are slidably connected to the inner wall of the track frame. The damping spring is installed inside the track frame for resetting the I-beam frame. Two sets of chain blocks are respectively arranged between the I-beam frame and the shaft. One end of the I-beam frame passes through the top end of the U-shaped rod and is slidably connected.

[0012] Preferably, the cylinder is fixedly connected to the upper surface of the moving platform, a connecting block is fixedly connected to the output end of the cylinder, a connecting rod is rotatably connected to the top of the connecting block, and the two ends of the connecting rod are connected to the bottom of the two chain blocks.

[0013] Preferably, the angle adjustment mechanism includes a servo motor, gears, a connecting shaft, and an arc-shaped groove plate. The servo motor is mounted on the outer wall of one of the shaft plates. The connecting shaft is rotatably connected between the two shaft plates and is connected to the output shaft of the servo motor. The two gears are fixedly connected to the outer wall of the connecting shaft. The arc-shaped groove plate is fixedly connected to one end of the chain block. The outer wall of the chain block is provided with a plurality of teeth. The gears mesh with each other. The protruding rod is slidably connected to the arc-shaped groove plate. A guide groove is provided on the outer wall of the arc-shaped groove plate. The protruding rod is slidably connected to the inner wall of the guide groove for guiding and limiting the sliding.

[0014] Preferably, a plurality of support rods are connected between the two sets of chain blocks, and a rubber sleeve is provided between the plurality of support rods, with a limit locking mechanism installed on the rubber sleeve.

[0015] Preferably, the limiting and engaging mechanism includes a locking plate and a U-shaped frame. The U-shaped frame is installed on the inner wall of the rubber sleeve. A T-shaped moving rod is slidably connected to the inner wall of the U-shaped frame. One end of the T-shaped moving rod passes through the U-shaped frame and is slidably connected. One end of the T-shaped moving rod is connected to the locking plate. A tension spring is provided between the T-shaped moving rod and the U-shaped frame. The tension spring is used to reset the T-shaped moving rod.

[0016] Preferably, a plurality of rollers are rotatably connected to the outer wall of the card plate, and a micro motor is installed on the outer wall of the card plate, the output shaft of the micro motor being connected to one of the rollers.

[0017] Preferably, one end of the card plate is provided with an inclined surface to facilitate the entry of sheet metal, and the outer wall of the roller is provided with a groove for engaging and limiting the sheet metal.

[0018] A bending machine is disclosed, which uses an electric front support device for bending. The machine includes a bending machine, a slider slidably connected to the outer wall of the bending machine, and a buffer mechanism installed on the bottom outer wall of the bending machine. The buffer mechanism includes a groove rail and an L-shaped plate. The groove rail is fixedly connected to the bottom outer wall of the bending machine. A movable slot frame is slidably connected to the inner wall of the groove rail, and a return spring for resetting the movable slot frame is installed on the inner wall of the groove rail. A T-shaped connecting arm is slidably connected to the inner wall of the movable slot frame, and a tension spring for resetting the T-shaped connecting arm is provided on the inner wall of the movable slot frame. The L-shaped plate is fixedly connected to the top of the T-shaped connecting arm.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] 1. This invention uses a servo motor to drive the connecting shaft and gear to rotate. Because the gear meshes with the teeth of the chain block on the feed end of the bearing mechanism, the rotation of the gear will drive the chain block to swing around the rotation point of the I-beam frame. The chain block in this area deflects at an angle relative to other chain blocks, forming a bending angle. The support rod and rubber sleeve connected to the chain block are adjusted accordingly, placing the inclined bending area of ​​the sheet metal on the support rod and rubber sleeve that form this area. The sheet metal fits with them, so that both ends of the sheet metal can be placed horizontally on the rubber sleeve, allowing one end of the sheet metal to pass smoothly through the bending opening of the bending machine, thereby avoiding tilting of the sheet metal during placement and affecting the bending effect.

[0021] 2. This invention uses a cylinder to push or extend the connecting block at the top to raise or lower it. The connecting block drives two chain blocks in the middle of the bearing mechanism to swing up or down synchronously via a connecting rod. The two chain blocks in the middle of the bearing mechanism form recesses or protrusions with other chain blocks to fit the recesses or protrusions of sheet metal for placement. With the help of the angle adjustment mechanism, multi-angle adjustments can be made, allowing for the placement of sheet metal with more different bending angles and improving its adaptability.

[0022] 3. After the sheet metal is placed and adjusted, the micro motor drives the roller connected to it to rotate. The roller drives the sheet metal to move slowly and adjust its position through friction. The L-shaped plate moves on the inner wall of the groove rail. With the tension of the return spring, the moving sheet metal is buffered to prevent the sheet metal from moving too much and causing repeated adjustments. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0025] Figure 2 This is a schematic diagram of the buffer mechanism of the present invention.

[0026] Figure 3 For the present invention Figure 2 A schematic diagram of the structure at point A in the middle.

[0027] Figure 4 This is a schematic diagram of the limiting locking mechanism, the bearing mechanism, and the angle adjustment mechanism of the present invention.

[0028] Figure 5 This is a schematic diagram of the support mechanism of the present invention.

[0029] Figure 6 For the present invention Figure 5 A schematic diagram of the structure at point B.

[0030] Figure 7 This is a schematic diagram of the limiting and engaging mechanism of the present invention.

[0031] Figure 8 This is a schematic diagram of the lifting mechanism of the present invention.

[0032] Figure 9 This is a schematic diagram of the angle adjustment mechanism of the present invention.

[0033] Figure 10 This is a schematic diagram of the supporting mechanism and chain block structure of the present invention.

[0034] Figure 11 This is a schematic diagram of the cylinder and chain block structure of the present invention.

[0035] In the diagram: 1. Bending machine; 2. Buffer mechanism; 21. Channel rail; 22. Moving channel frame; 23. L-shaped plate; 24. Return spring; 25. Tension spring; 26. T-shaped connecting arm; 3. Lifting mechanism; 31. Carrier vehicle; 32. Drive motor; 33. Rotating arm; 34. Swing arm; 35. Moving table; 36. U-shaped rod; 37. Shaft plate; 38. Protruding rod; 4. Chain block; 5. Limiting and locking mechanism; 51. Locking plate; 52. Micro 53. Roller; 54. U-shaped frame; 55. Tension spring; 56. T-shaped moving rod; 6. Bearing mechanism; 61. Slider; 62. Track frame; 63. I-shaped frame; 64. Damping spring; 65. Shaft; 7. Rubber sleeve; 8. Angle adjustment mechanism; 81. Servo motor; 82. Gear; 83. Connecting shaft; 84. Arc-shaped groove plate; 840. Guide groove; 9. Cylinder; 91. Connecting block; 92. Connecting rod. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] Example

[0038] like Figure 1 - Figure 11 As shown, the present invention provides an electric front support device for a bending machine, including a lifting mechanism 3, a chain block 4 and a bearing mechanism 6, wherein the bearing mechanism 6 is installed on the top of the lifting mechanism 3;

[0039] The lifting mechanism 3 lifts and lowers the carrying mechanism 6, and the carrying mechanism 6 rotates.

[0040] The inner side of the bearing mechanism 6 is provided with six chain blocks 4, three in a group, and two groups of chain blocks 4 are respectively provided on the inner sides of both ends of the bearing mechanism 6. Several chain blocks 4 are rotatably connected to each other.

[0041] A cylinder 9 is installed between the lifting mechanism 3 and the bearing mechanism 6. The cylinder 9 is used to lift the chain block 4 in the middle of the bearing mechanism 6 to fit the recessed sheet metal.

[0042] An angle adjustment mechanism 8 is installed at one end of the bearing mechanism 6. The angle adjustment mechanism 8 adjusts the angle of the chain block 4 at the feeding end of the bearing mechanism 6 to fit sheet metal with different bending degrees.

[0043] Combination Figure 8As shown, the lifting mechanism 3 includes a carrier 31, a drive motor 32, and a rotating arm 33. The drive motor 32 is mounted on the upper surface of the carrier 31, and the rotating arm 33 is rotatably connected to the upper surface of the carrier 31. The output shaft of the drive motor 32 is connected to the rotating shaft of the rotating arm 33. One end of the rotating arm 33 is rotatably connected to a swing arm 34, and one end of the swing arm 34 is rotatably connected to a moving platform 35. One end of the moving platform 35 is fixedly connected to a U-shaped rod 36. The top two ends of the U-shaped rod 36 are respectively fixedly connected to protruding rods 38, and a shaft plate 37 is fixedly connected to the outer wall of the protruding rod 38.

[0044] The purpose of this configuration is that when the drive motor 32 is powered on, it drives the rotating arm 33 on the carrier 31 to rotate. The rotating arm 33 and the swing arm 34 form a scissor-type lifting structure. When the rotating arm rotates, it will push the swing arm 34 to swing synchronously, thereby driving the top moving platform 35 to rise and fall. The moving platform 35 drives the entire carrier mechanism 6 to rise and fall through the U-shaped rod 36 and the shaft plate 37. The carrier mechanism 6 rotates around one of its own endpoints, thereby deflecting and bending the sheet metal on the carrier mechanism 6.

[0045] Combination Figure 5 As shown, the bearing mechanism 6 includes a slider 61, a track frame 62, an I-beam frame 63, a damping spring 64, and a shaft 65. The shaft 65 passes through both ends of the slider 61 and is rotatably connected. The track frame 62 is fixedly connected to one end of the shaft 65. Two chain blocks 4 are fixedly connected to the outer wall of the shaft 65. The two ends of the I-beam frame 63 are slidably connected to the inner wall of the track frame 62. The damping spring 64 is installed inside the track frame 62 and is used to reset the I-beam frame 63. Two sets of chain blocks 4 are respectively arranged between the I-beam frame 63 and the shaft 65. One end of the I-beam frame 63 passes through the top end of the U-shaped rod 36 and is slidably connected.

[0046] The purpose of this arrangement is that, driven by the lifting mechanism 3, the track frame 62, the I-beam frame 63, and the shaft 65 rotate around one end of the slider 61, thereby achieving the angular deflection of the bearing mechanism 6 for bending the sheet metal.

[0047] Combination Figure 10 - Figure 11 The cylinder 9 is fixedly connected to the upper surface of the moving platform 35. A connecting block 91 is fixedly connected to the output end of the cylinder 9. A connecting rod 92 is rotatably connected to the top of the connecting block 91. The two ends of the connecting rod 92 are connected to the bottom of the two chain blocks 4.

[0048] The purpose of this configuration is that the cylinder 9 pushes or extends the connecting block 91 at the top to rise or fall. The connecting block 91 drives the two chain blocks 4 in the middle of the bearing mechanism 6 to swing up or down synchronously through the connecting rod 92. The two chain blocks 4 in the middle of the bearing mechanism 6 form concave or convex shapes with other chain blocks to fit the concave or convex sheet metal for placement. With the help of the angle adjustment mechanism 8, multi-angle adjustments are made. In this way, when the sheet metal is placed on the rubber sleeve 7, the angled concave parts of the sheet metal fit with it, so that both ends of the sheet metal are placed horizontally on the rubber sleeve 7, which facilitates the flat passage of one end of the sheet metal through the bending machine and bending.

[0049] Combination Figure 9 As shown, the angle adjustment mechanism 8 includes a servo motor 81, gears 82, a connecting shaft 83, and an arc-shaped groove plate 84. The servo motor 81 is mounted on the outer wall of one of the shaft plates 37. The connecting shaft 83 is rotatably connected between the two shaft plates 37 and is connected to the output shaft of the servo motor 81. Two gears 82 are fixedly connected to the outer wall of the connecting shaft 83. The arc-shaped groove plate 84 is fixedly connected to one end of the chain block 4. The outer wall of the chain block 4 is provided with several teeth. The gears 82 mesh with each other. The protruding rod 38 is slidably connected to the arc-shaped groove plate 84. A guide groove 840 is provided on the outer wall of the arc-shaped groove plate 84. The protruding rod 38 is slidably connected to the inner wall of the guide groove 840 for guiding and limiting the sliding.

[0050] The purpose of this setup is that when the servo motor 81 starts, it drives the connecting shaft 83 connected to its output shaft to rotate. The two gears 82 on the connecting shaft 83 rotate synchronously. Since the gears 82 mesh with the teeth on the outer wall of the chain block 4 at the feed end of the bearing mechanism 6, the rotation of the gears 82 will drive the chain block 4 to swing around the rotation point of the I-frame 63. At the same time, the arc-shaped groove plate 84 at one end of the chain block 4 slides along the outer wall of the protruding rod 38, which plays a guiding and limiting role. During this process, the chain block 4 deflects at an angle relative to other chain blocks 4, forming a bending angle. The sheet metal with the bending angle is placed on it, matching its angle, thereby stabilizing the sheet metal.

[0051] Several support rods are connected between the two sets of chain blocks 4, and rubber sleeves 7 are set between the support rods. A limit locking mechanism 5 is installed on the rubber sleeves 7 to prevent the sheet metal from shifting during placement or bending.

[0052] Combination Figure 7 As shown, the limiting locking mechanism 5 includes a locking plate 51 and a U-shaped frame 54. The U-shaped frame 54 is installed on the inner wall of the rubber sleeve 7. A T-shaped moving rod 56 is slidably connected to the inner wall of the U-shaped frame 54. One end of the T-shaped moving rod 56 passes through the U-shaped frame 54 and is slidably connected. One end of the T-shaped moving rod 56 is connected to the locking plate 51. A tension spring 55 is provided between the T-shaped moving rod 56 and the U-shaped frame 54. The tension spring 55 is used to reset the T-shaped moving rod 56.

[0053] The purpose of this setup is to pass the sheet metal to be bent between the two clamping plates 51. The clamping plates 51 push the T-shaped moving rod 56 to slide along the inner wall of the U-shaped frame 54 and compress the tension spring 55. When the sheet metal is fully inserted, the tension spring 55 releases its elasticity and pushes the T-shaped moving rod 56 to reset, so that the clamping plates 51 fit tightly against both sides of the sheet metal. This is used to prevent the sheet metal from shifting during the bending process.

[0054] Several rollers 53 are rotatably connected to the outer wall of the pallet 51. A micro motor 52 is installed on the outer wall of the pallet 51. The output shaft of the micro motor 52 is connected to one of the rollers 53 for moving and adjusting the sheet metal.

[0055] One end of the card plate 51 is provided with a bevel to facilitate the entry of sheet metal, and the outer wall of the roller 53 is provided with a groove for engaging and limiting the sheet metal.

[0056] A bending machine, using an electric front support device for bending, includes a bending machine 1, a slider 61 slidably connected to the outer wall of the bending machine 1, a buffer mechanism 2 installed on the bottom outer wall of the bending machine 1, the buffer mechanism 2 including a channel rail 21 and an L-shaped plate 23, the channel rail 21 being fixedly connected to the bottom outer wall of the bending machine 1, a movable slot frame 22 slidably connected to the inner wall of the channel rail 21, a return spring 24 for resetting the movable slot frame 22 being installed on the inner wall of the channel rail 21, a T-shaped connecting arm 26 slidably connected to the inner wall of the movable slot frame 22, a tension spring 25 for resetting the T-shaped connecting arm 26 being provided on the inner wall of the movable slot frame 22, and an L-shaped plate 23 being fixedly connected to the top of the T-shaped connecting arm 26;

[0057] The purpose of this setup is that after the sheet metal is positioned and adjusted, the micro motor 52 drives the connected roller 53 to rotate. The roller 53 drives the sheet metal to move slowly and adjust its position through friction. The L-shaped plate 23 moves on the inner wall of the groove rail 21, and the tension of the return spring 24 buffers the moving sheet metal, preventing excessive movement and repeated adjustments. When the sheet metal is thick, the tension of the tension spring 25 pulls the L-shaped plate 23 and the T-shaped connecting arm 26 to fit tightly against one end of the sheet metal surface. Figure 1 This allows the lower surface of the sheet metal to fit against the upper surface of the bending opening of the bending machine 1, ensuring a smooth and close fit and improving the bending effect.

[0058] Working principle: Figure 9As shown, the servo motor 81 starts, driving the connecting shaft 83 connected to its output shaft to rotate. The two gears 82 on the connecting shaft 83 rotate synchronously. Since the gears 82 mesh with the teeth of the chain block 4 at the feed end of the bearing mechanism 6, the rotation of the gears 82 will drive the chain block 4 to swing around the rotation point of the I-frame 63. At the same time, the arc-shaped groove plate 84 at one end of the chain block 4 slides along the outer wall of the protruding rod 38, which plays a guiding and limiting role. During this process, the chain block 4 deflects at an angle relative to other chain blocks 4, forming a bending angle, and the bent sheet metal is placed on it.

[0059] Figure 8 As shown, when the drive motor 32 is energized, it drives the rotating arm 33 on the carrier 31 to rotate. The rotating arm 33 and the swing arm 34 form a scissor-type lifting structure. When the rotating arm rotates, it will push the swing arm 34 to swing synchronously, thereby driving the top moving platform 35 to move up and down. The moving platform 35 drives the entire carrier mechanism 6 to move up and down through the U-shaped rod 36 and the shaft plate 37. The slider 61 is slidably connected to the outer wall of the bending machine 1. The track frame 62 and the I-frame 63 rotate around the shaft 65. One end of the I-frame 63 passes through the top of the U-shaped rod 36 and is slidably connected. The U-shaped rod 36 pushes and deflects the I-frame 63, thereby causing the carrier mechanism 6 to deflect in the direction of the bending machine 1.

[0060] The sheet metal to be bent is passed between two clamping plates 51. The clamping plates 51 push the T-shaped moving rod 56 to slide along the inner wall of the U-shaped frame 54 and compress the tension spring 55. When the sheet metal is fully inserted, the tension spring 55 releases its elasticity and pushes the T-shaped moving rod 56 to reset, so that the clamping plates 51 are tightly attached to both sides of the sheet metal. During the bending process, this is used to prevent the sheet metal from shifting. At the same time, the groove of the roller 53 on the clamping plate 51 will engage with the edge of the sheet metal to form a limit. When the bearing mechanism 6 deflects in the direction of the bending machine 1, it prevents the sheet metal from falling off the roller 53 and affecting the bending effect.

[0061] The micro motor 52 drives the roller 53 connected to it to rotate. The roller 53 drives the sheet metal to move slowly and adjust its position through friction, without the need for manual adjustment.

[0062] The cylinder 9 pushes or extends the top connecting block 91 to rise or fall. The connecting block 91 drives the two chain blocks 4 in the middle of the bearing mechanism 6 to swing up or down synchronously through the connecting rod 92. The two chain blocks 4 in the middle of the bearing mechanism 6 form a concave or convex shape with other chain blocks to fit the concave or convex sheet metal for placement, and are adjusted at multiple angles in conjunction with the angle adjustment mechanism 8.

[0063] When the angle of several chain blocks 4 is adjusted, the distance between the farthest two ends of the three chain blocks 4 is shortened. The I-frame 63 is slidably connected to the U-shaped rod 36. The I-frame 63 is slidably connected to the inner side of the track frame 62. The damping spring 64 tensions the sliding of the I-frame 63 to adapt to the angle deflection changes of the three chain blocks 4 and the bearing mechanism 6.

[0064] After the sheet metal is placed and adjusted, the micro motor 52 drives the roller 53 connected to it to rotate. The roller 53 drives the sheet metal to move slowly and adjust its position through friction. The L-shaped plate 23 moves on the inner wall of the groove rail 21. With the tension of the return spring 24, the moving sheet metal is buffered to prevent the sheet metal from moving too much and causing repeated adjustments. The sheet metal extends into the interior of the bending machine 1. The bending machine 1 presses one end of the sheet metal. The lifting mechanism 3 drives the bearing mechanism 6 to flip the sheet metal, thereby realizing the bending of one end of the sheet metal.

[0065] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0066] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. An electric front support device for a bending machine, comprising a lifting mechanism (3), a chain block (4), and a bearing mechanism (6), characterized in that: The supporting mechanism (6) is installed on top of the lifting mechanism (3); The lifting mechanism (3) lifts and lowers the bearing mechanism (6), and the bearing mechanism (6) flips over; The inner side of the bearing mechanism (6) is provided with six chain blocks (4), three in a group, and two groups of chain blocks (4) are respectively provided on the inner sides of the two ends of the bearing mechanism (6), and several chain blocks (4) are rotatably connected to each other; A cylinder (9) is installed between the lifting mechanism (3) and the bearing mechanism (6). The cylinder (9) is used to lift the chain block (4) in the middle of the bearing mechanism (6) to fit the recessed sheet metal. An angle adjustment mechanism (8) is installed at one end of the bearing mechanism (6). The angle adjustment mechanism (8) adjusts the angle of the chain block (4) at the feeding end of the bearing mechanism (6) to fit sheet metal with different bending degrees. The lifting mechanism (3) includes a carrier (31), a drive motor (32) and a rotating arm (33). The drive motor (32) is mounted on the upper surface of the carrier (31). The rotating arm (33) is rotatably connected to the upper surface of the carrier (31). The output shaft of the drive motor (32) is connected to the rotating shaft of the rotating arm (33). One end of the rotating arm (33) is rotatably connected to a swing arm (34). One end of the swing arm (34) is rotatably connected to a moving platform (35). One end of the moving platform (35) is fixedly connected to a U-shaped rod (36). The top two ends of the U-shaped rod (36) are respectively fixedly connected to protruding rods (38). A shaft plate (37) is fixedly connected to the outer wall of the protruding rod (38). The bearing mechanism (6) includes a slider (61), a track frame (62), an I-beam frame (63), a damping spring (64), and a shaft (65). The shaft (65) passes through both ends of the slider (61) and is rotatably connected. The track frame (62) is fixedly connected to one end of the shaft (65). Two chain blocks (4) are fixedly connected to the outer wall of the shaft (65). The two ends of the I-beam frame (63) are slidably connected to the inner wall of the track frame (62). The damping spring (64) is installed inside the track frame (62) to reset the I-beam frame (63). Two sets of chain blocks (4) are respectively arranged between the I-beam frame (63) and the shaft (65). One end of the I-beam frame (63) passes through the top end of the U-shaped rod (36) and is slidably connected. The cylinder (9) is fixedly connected to the upper surface of the moving platform (35). A connecting block (91) is fixedly connected to the output end of the cylinder (9). A connecting rod (92) is rotatably connected to the top of the connecting block (91). The two ends of the connecting rod (92) are connected to the bottom of the two chain blocks (4). The angle adjustment mechanism (8) includes a servo motor (81), gears (82), a connecting shaft (83), and an arc-shaped groove plate (84). The servo motor (81) is mounted on the outer wall of one of the shaft plates (37). The connecting shaft (83) is rotatably connected between the two shaft plates (37). The connecting shaft (83) is connected to the output shaft of the servo motor (81). The two gears (82) are fixedly connected to the outer wall of the connecting shaft (83). The arc-shaped groove plate (84) is fixedly connected to one end of the chain block (4). The outer wall of the chain block (4) is provided with several teeth. The gears (82) mesh with the teeth. The protruding rod (38) is slidably connected to the arc-shaped groove plate (84). The outer wall of the arc-shaped groove plate (84) is provided with a guide groove (840). The protruding rod (38) is slidably connected to the inner wall of the guide groove (840) for guiding and limiting the sliding.

2. The electric front support device for a bending machine as described in claim 1, characterized in that, A number of support rods are connected between the two sets of chain blocks (4), and a rubber sleeve (7) is provided between the support rods. A limit locking mechanism (5) is installed on the rubber sleeve (7).

3. The electric front support device for a bending machine as described in claim 2, characterized in that, The limiting locking mechanism (5) includes a locking plate (51) and a U-shaped frame (54). The U-shaped frame (54) is installed on the inner wall of the rubber sleeve (7). A T-shaped moving rod (56) is slidably connected to the inner wall of the U-shaped frame (54). One end of the T-shaped moving rod (56) passes through the U-shaped frame (54) and is slidably connected. One end of the T-shaped moving rod (56) is connected to the locking plate (51). A tension spring (55) is provided between the T-shaped moving rod (56) and the U-shaped frame (54). The tension spring (55) is used to reset the T-shaped moving rod (56).

4. The electric front support device for a bending machine as described in claim 3, characterized in that, Several rollers (53) are rotatably connected to the outer wall of the card plate (51), and a micro motor (52) is installed on the outer wall of the card plate (51). The output shaft of the micro motor (52) is connected to one of the rollers (53).

5. The electric front support device for a bending machine as described in claim 4, characterized in that, One end of the card plate (51) is provided with a slope to facilitate the entry of sheet metal, and the outer wall of the roller (53) is provided with a groove for locking and limiting the sheet metal.

6. A bending machine, using the electric front support device of the bending machine according to claim 5 for bending, comprising a bending machine (1), characterized in that, The slider (61) is slidably connected to the outer wall of the bending machine (1). A buffer mechanism (2) is installed on the bottom outer wall of the bending machine (1). The buffer mechanism (2) includes a channel rail (21) and an L-shaped plate (23). The channel rail (21) is fixedly connected to the bottom outer wall of the bending machine (1). A movable slot frame (22) is slidably connected to the inner wall of the channel rail (21). A reset spring (24) for resetting the movable slot frame (22) is installed on the inner wall of the channel rail (21). A T-shaped connecting arm (26) is slidably connected to the inner wall of the movable slot frame (22). A tension spring (25) for resetting the T-shaped connecting arm (26) is provided on the inner wall of the movable slot frame (22). The L-shaped plate (23) is fixedly connected to the top of the T-shaped connecting arm (26).

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