Bending protection device of numerical control bending machine

Abstract

The invention discloses a bending protection device of a numerical control bending machine, and relates to the technical field of bending machines, the bending protection device comprises a feeding box, a tooth column, an L-shaped plate, an elastic telescopic plate, a rotating plate, a square plate, an elastic telescopic flat plate and a moving plate, the feeding box is fixedly mounted at the top of a machine body, and a square through groove is formed in the outer surface of the feeding box; the tooth column is rotatably arranged in the square through groove, the fixed end of the elastic telescopic plate is fixedly installed on the side, provided with the square through groove, of the feeding box, the L-shaped plate is fixedly installed at the free end of the elastic telescopic plate, the rotating plate is rotatably installed at the top of the machine body, and the square plate is slidably installed at the top of the machine body. The elastic telescopic flat plate is installed at the top of the machine body in a sliding mode, an entering pipeline can be pushed forwards, the situation that the entering pipeline cannot enter a bent area normally is avoided, it is guaranteed that bending work is conducted smoothly, meanwhile, manual intervention is avoided, and mechanical accidents are reduced.

Description

Technical Field

[0001] The invention relates to the technical field of bending machines, in particular to a bending protection device for a numerically controlled bending machine. Background Art

[0002] The bending protection device of the CNC bending machine is a protection device for the bending machine, which protects the bending machine when the bending machine is working.

[0003] The patent with patent announcement number CN216501660U involves an operating table, on which a control panel is installed, a fixed plate is placed on the inner wall of the top of the operating table, a carrying plate is movably embedded in the bottom end of the fixed plate, a slide rail is provided on one side of the carrying plate, at least one slider is provided on the slide rail, a pressing knife is fixedly connected to the bottom end of each slider, and two opposing support frames are fixedly provided on the other side of the carrying plate. For plates of different specifications, the slider on the slide rail can be adjusted so that the pressing knife is located directly above the processed plate, which is convenient for fixing the plate conveyed on the pad and achieving effective stabilization of the plate. The pressing plate and the spring are used in combination to clamp the plate that is warped during bending, so that the pressing plate is passively tilted with the inclination angle of the plate, thereby achieving the effect of protecting one end of the plate from being skewed, effectively reducing the risk of workers adding materials, reducing damage to the plate, and reducing production costs.

[0004] In the above patent, the plate that is lifted up during bending can be clamped, so that the pressure plate can be passively tilted along with the inclination angle of the plate, thereby protecting one end of the plate from tilting, effectively reducing the risk of workers adding materials, reducing damage to the plate, and reducing production costs. However, there are still problems, which may result in the inability to push the incoming pipe forward smoothly, making it difficult for many pipes to be bent normally, and frequently causing interruptions and stagnation of the bending work, seriously affecting the continuity of the bending process. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a bending protection device for a CNC bending machine, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A bending protection device for a CNC bending machine, comprising a machine body, a display screen is arranged on the right side of the machine body, a bending clamping device is arranged on the top of the machine body, a housing is fixedly installed on the top of the machine body, and a material pushing mechanism is arranged on the top of the machine body; Wherein, the pushing mechanism comprises a feed box, a tooth column, an L-plate, an elastic telescopic plate, a rotating plate, a square plate, an elastic telescopic flat plate and a movable plate, the feed box is fixedly mounted on the top of the machine body, a square through groove is provided on the outer surface of the feed box, the tooth column rotates inside the square through groove, the fixed end of the elastic telescopic plate is fixedly mounted on a side of the feed box where the square through groove is provided, the L-plate is fixedly mounted on the free end of the elastic telescopic plate, the rotating plate is rotatably mounted on the top of the machine body, the square plate is slidably mounted on the top of the machine body, the elastic telescopic flat plate is slidably mounted on the top of the machine body, and the movable plate is slidably mounted on the top of the machine body; Among them, the outer wall of the body is provided with a protective mechanism and an anti-collision mechanism to prevent collision. When the square plate moves, it will drive the elastic telescopic flat plate to move. When the elastic telescopic flat plate moves, it will drive the movable plate to move. When the square plate moves, it will push the incoming pipe forward to prevent the incoming pipe from being bent normally.

[0007] According to the above technical solution, the pushing mechanism also includes a rotating rod, a push rod, a ladder block, an inclined rod and a baffle. One end of the rotating rod is rotatably mounted on an end of the movable plate away from the clamping and bending device, one end of the push rod is rotatably mounted on the other end of the rotating rod, the ladder block is fixedly mounted on the other end of the push rod, the baffle is slidably mounted on the top of the machine body, and the inclined rod is fixedly mounted on a side of the baffle close to the clamping and bending device. When the rotating rod moves, it will drive the movable plate back to its original position. When the ladder block moves, it will drive the inclined rod to move. When the inclined rod moves, it will drive the baffle to move.

[0008] According to the above technical solution, the tooth column contacts the L plate, the rotating plate contacts the L plate, the rotating plate contacts the square plate, and the ladder block contacts the diagonal rod. When the tooth column pushes the L plate, the L plate will move toward the rotating plate, and when the ladder block moves, it will drive the diagonal rod to move.

[0009] According to the above technical scheme, the protection mechanism includes a telescopic device, an L-block, a square frame, a protective cover, a spiral column, a fixed plate, a rotating ring and a telescopic push plate. The telescopic device is fixedly installed on the front of the body, one end of the L-block is fixedly installed on the output end of the telescopic device, the square frame is fixedly installed on the other end of the L-block, one end of the protective cover is fixedly installed on the side of the L-block, the spiral column is fixedly installed on the other end of the protective cover, the fixed end of the telescopic push plate is fixedly installed on the outer surface of the body, the fixed plate is fixedly installed on the fixed end of the telescopic push plate, and the rotating ring is fixedly installed on the end of the fixed plate away from the body. When the gear rotates, it will drive the rack to move, and when the rack moves, it will push the telescopic push plate to move. Because the rack is unidirectional, it will not drive the gear to rotate when the telescopic push plate is hit.

[0010] According to the above technical solution, the protection mechanism also includes a gear, a rack and a square rod. The gear is rotatably installed at the bottom of the rotating ring. A sliding groove is provided at the fixed end of the telescopic push plate. The rack slides inside the sliding groove. The end of the rack away from the fixed end of the telescopic push plate is fixedly installed on the free end of the telescopic push plate. The square rod is fixedly installed on the surface of the L block. When the gear rotates, the rack will move. When the rack moves, the telescopic push plate will be pushed to move. Because the rack is unidirectional, it will not drive the gear to rotate when the telescopic push plate is hit.

[0011] According to the above technical solution, the gear is meshed with the rack, the rear side of the tooth head of the rack is rotatably connected to the front side of the rack, and a clockwork spring is provided on the tooth head and the front side of the rack. When the gear rotates, it drives the rack to move, and when the rack moves, it pushes the telescopic push plate to move.

[0012] According to the above technical scheme, the anti-collision mechanism includes a telescopic long rod, a trapezoidal block, an elastic telescopic ladder head block, a U-plate, a supporting plate, a vertical block, a long oblique head rod, a force plate and an elastic telescopic card plate, the fixed end of the telescopic long rod is fixedly mounted on the free end of the telescopic push plate, the U-plate is slidably mounted on the free end of the telescopic long rod, the elastic telescopic ladder head block is fixedly mounted on the inner wall of the U-plate, the trapezoidal block is fixedly mounted on the free end of the telescopic long rod, the supporting plate is slidably mounted on the outer surface of the machine body, the vertical block is fixedly mounted on the outer surface of the machine body, one end of the long oblique head rod is fixedly mounted on the top of the supporting plate, the force plate is slidably mounted on the front side of the machine body, the fixed end of the elastic telescopic card plate is fixedly mounted on the top of the force plate, the free end of the elastic telescopic card plate is slidably connected with the fixed end of the telescopic push plate, and when the force plate moves, the elastic telescopic card plate will be driven to move, and when the elastic telescopic card plate moves away from the gear, the limit on the free end of the elastic telescopic card plate will be released, and when the limit of the elastic telescopic card plate is released, it will be stuck in the gear.

[0013] According to the above technical solution, the support plate contacts the vertical block, and the trapezoidal block contacts the elastic telescopic ladder head block. When the trapezoidal block moves quickly, it will be directly inserted into the groove of the free end of the elastic telescopic ladder head block in the U plate due to inertia. When the support plate moves, it will contact the vertical block below.

[0014] The present invention provides a bending protection device for a CNC bending machine, which has the following beneficial effects: (1) The invention limits the two ends of the pipe when the baffle moves to prevent the pipe from suddenly sliding out when squeezed. It pushes the incoming pipe forward when the square plate moves to prevent the incoming pipe from being unable to be bent normally. This is conducive to pushing the incoming pipe forward to prevent the incoming pipe from being unable to enter the bending area normally, thereby ensuring the smooth progress of the bending work and avoiding manual intervention, thereby reducing the occurrence of mechanical accidents.

[0015] (2) The invention prevents the gears from rotating when the telescopic push plate is hit, and prevents pedestrians from directly hitting the machine body when the telescopic push plate is pushed out. When the frame moves, it drives the protective cover to move. When the protective cover moves, it protects the bending work above, preventing personnel from contacting the moving parts of the bending area or the bent pipes during the operation of the equipment, avoiding personal injuries caused by accidental touch, such as pinching and collision, etc. At the same time, it blocks the noise generated during the bending process to a certain extent, reduces the impact of noise on the working environment, improves the working conditions of operators, and reduces noise pollution.

[0016] (3) This invention, when the limit of the elastic telescopic clamp is released, it will be stuck in the gear to prevent the gear from rotating due to the spring on the rack. When the support plate contacts the vertical block, it will expand outward. When the support plate expands outward, it will form a bracket to prevent the machine body from moving at will, effectively disperse the impact force on the bending machine, reduce shaking and displacement, prevent the machine from tipping over due to collision, and ensure the safety of the equipment and operators. At the same time, it can reduce the vibration and displacement of the equipment during collision, thereby protecting the internal precision components, circuit systems and transmission devices, etc., reducing equipment maintenance costs and downtime, and extending the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the feed box and baffle structure of the present invention; Figure 3 It is a schematic diagram of the bending device and ladder block structure of the present invention; Figure 4 It is a schematic diagram of the structure of the machine body and the rotating rod of the present invention; Figure 5 It is a schematic diagram of the telescopic device and the telescopic push plate structure of the present invention; Figure 6 It is a schematic diagram of the spiral column and rack structure of the present invention; Figure 7 This is a schematic diagram of the structure of the telescopic push plate and the telescopic long rod of the present invention; Figure 8 For the present invention Figure 7 A schematic diagram of the structure enlargement of part A; Fig. 9 It is a schematic diagram of the structure of the long oblique head rod and the force-bearing plate of the present invention.

[0018] In the figure: 1, machine body; 2, display screen; 3, bending device; 4, housing; 501, feed box; 502, tooth column; 503, L plate; 504, elastic telescopic plate; 505, rotating plate; 506, square plate; 507, elastic telescopic flat plate; 508, moving plate; 509, rotating rod; 510, push rod; 511, ladder block; 512, inclined rod; 513, baffle; 601, telescopic device; 602, L block; 60 3. Square frame; 604. Protective cover; 605. Spiral column; 606. Fixed plate; 607. Rotating ring; 608. Gear; 609. Rack; 610. Telescopic push plate; 611. Square rod; 701. Telescopic long rod; 702. Trapezoidal block; 703. Elastic telescopic ladder head block; 704. U plate; 705. Support plate; 706. Vertical block; 707. Long oblique head rod; 708. Force plate; 709. Elastic telescopic card plate. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figure 1-Figure 9 One embodiment of the present invention is: a bending protection device for a CNC bending machine, comprising a machine body 1, a display screen 2 is arranged on the right side of the machine body 1, a bending clamp 3 is arranged on the top of the machine body 1, a housing 4 is fixedly installed on the top of the machine body 1, and a material pushing mechanism is arranged on the top of the machine body 1; The pushing mechanism includes a feed box 501, a tooth column 502, an L plate 503, an elastic telescopic plate 504, a rotating plate 505, a square plate 506, an elastic telescopic flat plate 507 and a movable plate 508. The feed box 501 is fixedly mounted on the top of the body 1. A square through groove is provided on the outer surface of the feed box 501. The tooth column 502 rotates inside the square through groove. The fixed end of the elastic telescopic plate 504 is fixedly mounted on one side of the feed box 501 where the square through groove is provided. The L plate 503 is fixedly mounted on the free end of the elastic telescopic plate 504. The rotating plate 505 is rotatably mounted on the top of the body 1. The square plate 506 is slidably mounted on the top of the body 1. The elastic telescopic flat plate 507 is slidably mounted on the top of the body 1. The movable plate 508 is slidably mounted on the top of the body 1 to prevent the incoming pipe from being unable to be bent normally, which is conducive to pushing the incoming pipe forward, preventing the incoming pipe from being unable to enter the bent area normally, ensuring the smooth progress of the bending work, and also avoiding manual intervention, thereby reducing the occurrence of mechanical accidents.

[0021] The pushing mechanism also includes a rotating rod 509, a push rod 510, a ladder block 511, an inclined rod 512 and a baffle 513. One end of the rotating rod 509 is rotatably mounted on the end of the moving plate 508 away from the clamping and bending device 3, one end of the push rod 510 is rotatably mounted on the other end of the rotating rod 509, the ladder block 511 is fixedly mounted on the other end of the push rod 510, the baffle 513 is slidably mounted on the top of the machine body 1, and the inclined rod 512 is fixedly mounted on a side of the baffle 513 close to the clamping and bending device 3. When the rotating rod 509 moves, it will drive the moving plate 508 back to its original position. When the ladder block 511 moves, it will drive the inclined rod 512 to move. When the inclined rod 512 moves, it will drive the baffle 513 to move.

[0022] The tooth column 502 contacts the L plate 503, the rotating plate 505 contacts the L plate 503, the rotating plate 505 contacts the square plate 506, and the ladder block 511 contacts the inclined rod 512. When the tooth column 502 pushes the L plate 503, the L plate 503 will move toward the rotating plate 505, and when the ladder block 511 moves, it will drive the inclined rod 512 to move.

[0023] When this embodiment is working: this device will only bend the middle position of the pipe, complete the editing of the program of the display screen 2, and check the housing 4 at the same time, put the pipe to be bent into the feed box 501, and when the pipe enters the feed box 501, it will contact the tooth column 502, and when the pipe contacts the tooth column 502, it will drive the tooth column 502 to rotate, and when the tooth column 502 rotates, it will push the L plate 503, and when the tooth column 502 pushes the L plate 503, the L plate 503 will move in the direction close to the rotating plate 505, and when the L plate 503 contacts the rotating plate 505, it will push the rotating plate 505 to move, and when the rotating plate 505 moves, it will squeeze the square plate 506 to move, and when the square plate 506 moves, it will drive the elastic telescopic flat plate 507 to move, and when the elastic telescopic flat plate 507 moves, it will drive the moving plate 508 to move, and when the square plate 506 moves, it will drive the elastic telescopic flat plate 507 to move. When the plate 506 moves, it will push the incoming pipe forward to prevent the incoming pipe from being bent normally. When the bending device 3 is running, the ladder block 511 will move. When the ladder block 511 moves, it will drive the push rod 510 to move. When the push rod 510 moves, it will drive the rotating rod 509 to move. When the rotating rod 509 moves, it will drive the movable plate 508 back to its original position. When the ladder block 511 moves, it will drive the inclined rod 512 to move. When the inclined rod 512 moves, it will drive the baffle 513 to move. When the baffle 513 moves, it will limit the two ends of the pipe to prevent the pipe from suddenly slipping out when it is squeezed. When the pipe completely enters the interior of the machine body 1, the elastic telescopic plate 504 retracts toward the direction of the feed box 501 to prevent the square plate 506 from affecting subsequent work.

[0024] See also Figure 1-Figure 9On the basis of the above embodiment, in another embodiment of the present invention, the outer wall of the body 1 is provided with a protective mechanism for protection and an anti-collision mechanism for preventing collision, the protective mechanism comprises a telescopic device 601, an L block 602, a frame 603, a protective cover 604, a spiral column 605, a fixed plate 606, a rotating ring 607 and a telescopic push plate 610, the telescopic device 601 is fixedly mounted on the front of the body 1, one end of the L block 602 is fixedly mounted on the output end of the telescopic device 601, the frame 603 is fixedly mounted on the other end of the L block 602, and one end of the protective cover 604 is fixedly mounted on the side of the L block 602 The spiral column 605 is fixedly installed at the other end of the protective cover 604, the fixed end of the telescopic push plate 610 is fixedly installed on the outer surface of the body 1, the fixed plate 606 is fixedly installed on the fixed end of the telescopic push plate 610, and the rotating ring 607 is fixedly installed on the end of the fixed plate 606 away from the body 1, so as to prevent personnel from contacting the moving parts or the bent pipes in the bending area during the operation of the equipment, and avoid personal injuries caused by accidental touch, such as pinching, collision, etc. At the same time, it blocks the noise generated in the bending process to a certain extent, reduces the impact of noise on the working environment, improves the working conditions of operators, and reduces noise pollution.

[0025] The protection mechanism also includes a gear 608, a rack 609 and a square rod 611. The gear 608 is rotatably mounted on the bottom of the rotating ring 607. A sliding groove is provided at the fixed end of the telescopic push plate 610. The rack 609 slides inside the sliding groove. The end of the rack 609 away from the fixed end of the telescopic push plate 610 is fixedly mounted on the free end of the telescopic push plate 610. The square rod 611 is fixedly mounted on the surface of the L block 602. When the gear 608 rotates, the rack 609 is driven to move. When the rack 609 moves, the telescopic push plate 610 is pushed to move. Because the rack 609 is unidirectional, the gear 608 will not be driven to rotate when the telescopic push plate 610 is hit.

[0026] The gear 608 is meshed with the rack 609, and the rear side of the tooth head of the rack 609 is rotationally connected to the front side of the rack 609. A clockwork spring is provided on the tooth head and the front side of the rack 609. When the gear 608 rotates, it drives the rack 609 to move, and when the rack 609 moves, it pushes the telescopic push plate 610 to move.

[0027] The anti-collision mechanism includes a telescopic long rod 701, a trapezoidal block 702, an elastic telescopic ladder head block 703, a U-plate 704, a support plate 705, a vertical block 706, a long oblique head rod 707, a force plate 708 and an elastic telescopic card plate 709. The fixed end of the telescopic long rod 701 is fixedly mounted on the free end of the telescopic push plate 610, the U-plate 704 is slidably mounted on the free end of the telescopic long rod 701, the elastic telescopic ladder head block 703 is fixedly mounted on the inner wall of the U-plate 704, the trapezoidal block 702 is fixedly mounted on the free end of the telescopic long rod 701, the support plate 705 is slidably mounted on the outer surface of the body 1, the vertical block 706 is fixedly mounted on the outer surface of the body 1, the long oblique head rod 707 is fixedly mounted on the outer surface of the body 1, and the elastic telescopic card plate 709 is fixedly mounted on the free end of the telescopic long rod 701. One end of the head rod 707 is fixedly installed on the top of the support plate 705, the force plate 708 is slidably installed on the front of the body 1, and the fixed end of the elastic telescopic card plate 709 is fixedly installed on the top of the force plate 708. The free end of the elastic telescopic card plate 709 is slidably connected to the fixed end of the telescopic push plate 610, which effectively disperses the impact force on the bending machine, reduces shaking and displacement, prevents the machine from tipping over due to collision, and ensures the safety of the equipment and operators. At the same time, it can reduce the vibration and displacement of the equipment during collision, thereby protecting the internal precision components, circuit systems and transmission devices, etc., reducing equipment maintenance costs and downtime, and extending the service life of the equipment.

[0028] The support plate 705 contacts the vertical block 706, and the trapezoidal block 702 contacts the elastic telescopic ladder head block 703. When the trapezoidal block 702 moves quickly, it will be directly inserted into the groove of the free end of the elastic telescopic ladder head block 703 in the U plate 704 due to inertia. When the support plate 705 moves, it will contact the vertical block 706 below.

[0029] When this embodiment is working: when the moving plate 508 moves, it will squeeze the switch of the telescopic device 601. When the switch of the telescopic device 601 is squeezed, it will drive the L block 602 to move. When the L block 602 moves, it will drive the square frame 603 to move. When the square frame 603 moves, it will drive the protective cover 604 to move. When the protective cover 604 moves, it will protect the bending work above. When the L block 602 moves, it will drive the square rod 611 to move. When the square rod 611 moves When the spiral column 605 is moved, the spiral column 605 will be driven to move. At the same time, the gear 608 under the rotating ring 607 on the fixed plate 606 will rotate due to the up and down movement of the spiral column 605. When the gear 608 rotates, the rack 609 will be driven to move. When the rack 609 moves, the telescopic push plate 610 will be pushed to move. Because the rack 609 is unidirectional, the gear 608 will not be driven to rotate when the telescopic push plate 610 is hit. When the telescopic push plate 610 is pushed out, it will prevent pedestrians from directly hitting the body 1.

[0030] When someone hits the telescopic push plate 610, the free end of the telescopic push plate 610 will be compressed inwardly, and when the free end of the telescopic push plate 610 contracts, it will drive the telescopic long rod 701 to contract. When the telescopic long rod 701 contracts quickly, it will drive the trapezoidal block 702 to move quickly. When the trapezoidal block 702 moves quickly, it will be directly inserted into the groove of the free end of the elastic telescopic ladder head block 703 in the U plate 704 due to inertia. When the trapezoidal block 702 is inserted into the groove of the elastic telescopic ladder head block 703, the free end of the elastic telescopic ladder head block 703 will be squeezed. When the free end of the elastic telescopic ladder head block 703 is squeezed, it will contact with the telescopic long rod 701. When the free end of the elastic telescopic ladder head block 703 contacts with the telescopic long rod 701, friction will increase, stopping the descent of the trapezoidal block 702, thereby hindering the collision of the pedestrian. When the descent stops, the support plate 705 below will be driven to move. When the support plate 705 moves, it will contact the vertical block 706 below. When the support plate 705 contacts the vertical block 706, the support plate 705 will expand outward. When the support plate 705 expands outward, a bracket will be formed to prevent the machine body 1 from moving at will. At the same time, when the support plate 705 moves, the long oblique head rod 707 will be driven to move. When the long oblique head rod 707 moves, it will drive the force plate 708 to move. When the force plate 708 moves, it will drive the elastic telescopic card plate 709 to move. When the elastic telescopic card plate 709 moves away from the gear 608, the limit on the free end of the elastic telescopic card plate 709 will be released. When the limit of the elastic telescopic card plate 709 is released, it will be stuck in the gear 608 to prevent the gear 608 from rotating due to the clockwork spring on the rack 609.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bending protection device for a CNC bending machine, comprising a machine body (1), characterized in that: A display screen (2) is provided on the right side of the machine body (1), a bending device (3) is provided on the top of the machine body (1), a casing (4) is fixedly mounted on the top of the machine body (1), and a material pushing mechanism is provided on the top of the machine body (1); The pushing mechanism comprises a feed box (501), a tooth column (502), an L-plate (503), an elastic telescopic plate (504), a rotating plate (505), a square plate (506), an elastic telescopic flat plate (507) and a movable plate (508); the feed box (501) is fixedly mounted on the top of the machine body (1); a square through groove is provided on the outer surface of the feed box (501); the tooth column (502) rotates inside the square through groove; a fixed end of the elastic telescopic plate (504) is fixedly mounted on a side of the feed box (501) where the square through groove is provided; the L-plate (503) is fixedly mounted on the free end of the elastic telescopic plate (504); the rotating plate (505) is rotatably mounted on the top of the machine body (1); the square plate (506) is slidably mounted on the top of the machine body (1); the elastic telescopic flat plate (507) is slidably mounted on the top of the machine body (1); and the movable plate (508) is slidably mounted on the top of the machine body (1); Wherein, the outer wall of the machine body (1) is provided with a protective mechanism for protection and an anti-collision mechanism for preventing collision.

2. The bending protection device of a CNC bending machine according to claim 1, characterized in that: The pushing mechanism further comprises a rotating rod (509), a pushing rod (510), a ladder block (511), an inclined rod (512) and a baffle (513); one end of the rotating rod (509) is rotatably mounted on an end of the moving plate (508) away from the clamping and bending device (3); one end of the pushing rod (510) is rotatably mounted on the other end of the rotating rod (509); the ladder block (511) is fixedly mounted on the other end of the pushing rod (510); the baffle (513) is slidably mounted on the top of the machine body (1); and the inclined rod (512) is fixedly mounted on a side of the baffle (513) close to the clamping and bending device (3).

3. The bending protection device of a CNC bending machine according to claim 2, characterized in that: The tooth column (502) contacts the L plate (503), the rotating plate (505) contacts the L plate (503), the rotating plate (505) contacts the square plate (506), and the ladder block (511) contacts the inclined rod (512).

4. The bending protection device of a CNC bending machine according to claim 3 is characterized in that: The protection mechanism comprises a telescopic device (601), an L block (602), a square frame (603), a protective cover (604), a spiral column (605), a fixed plate (606), a rotating ring (607), and a telescopic push plate (610); the telescopic device (601) is fixedly mounted on the front of the machine body (1); one end of the L block (602) is fixedly mounted on the output end of the telescopic device (601); the square frame (603) is fixedly mounted on the other end of the L block (602); one end of the protective cover (604) is fixedly mounted on the side of the L block (602); the spiral column (605) is fixedly mounted on the other end of the protective cover (604); the fixed end of the telescopic push plate (610) is fixedly mounted on the outer surface of the machine body (1); the fixed plate (606) is fixedly mounted on the fixed end of the telescopic push plate (610); and the rotating ring (607) is fixedly mounted on the end of the fixed plate (606) away from the machine body (1).

5. The bending protection device for a CNC bending machine according to claim 4, characterized in that: The protection mechanism further comprises a gear (608), a rack (609) and a square rod (611); the gear (608) is rotatably mounted on the bottom of the rotating ring (607); a sliding groove is provided at the fixed end of the telescopic push plate (610); the rack (609) slides inside the sliding groove; an end of the rack (609) away from the fixed end of the telescopic push plate (610) is fixedly mounted on the free end of the telescopic push plate (610); and the square rod (611) is fixedly mounted on the surface of the L block (602).

6. The bending protection device for a CNC bending machine according to claim 5, characterized in that: The gear (608) is meshed with the rack (609); the rear side of the tooth head of the rack (609) is rotatably connected to the front side of the rack (609); and a clockwork spring is provided between the tooth head and the front side of the rack (609).

7. The bending protection device of a CNC bending machine according to claim 6, characterized in that: The anti-collision mechanism comprises a telescopic long rod (701), a trapezoidal block (702), an elastic telescopic ladder head block (703), a U-plate (704), a support plate (705), a vertical block (706), a long oblique head rod (707), a force plate (708) and an elastic telescopic card plate (709), wherein the fixed end of the telescopic long rod (701) is fixedly mounted on the free end of the telescopic push plate (610), the U-plate (704) is slidably mounted on the free end of the telescopic long rod (701), the elastic telescopic ladder head block (703) is fixedly mounted on the inner wall of the U-plate (704), and the trapezoidal block (706) is fixedly mounted on the inner wall of the U-plate (704). 02) is fixedly mounted on the free end of the telescopic long rod (701), the support plate (705) is slidably mounted on the outer surface of the body (1), the vertical block (706) is fixedly mounted on the outer surface of the body (1), one end of the long oblique rod (707) is fixedly mounted on the top of the support plate (705), the force-bearing plate (708) is slidably mounted on the front of the body (1), the fixed end of the elastic telescopic card plate (709) is fixedly mounted on the top of the force-bearing plate (708), and the free end of the elastic telescopic card plate (709) is slidably connected to the fixed end of the telescopic push plate (610).

8. The bending protection device for a CNC bending machine according to claim 7, characterized in that: The support plate (705) contacts the vertical block (706), and the trapezoidal block (702) contacts the elastically retractable ladder head block (703).

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