Numerical control bending machine with automatic feeding function

Abstract

The invention relates to the field of bending machines, and discloses a numerical control bending machine with an automatic feeding function, which comprises a bending table, a material moving structure is arranged on the upper surface of the bending table, a bending structure is arranged in the middle of the upper surface of the bending table, and a discharging opening is formed in the position, close to the rear end, of the left side surface of the bending table. A discharging structure is arranged at the position, close to the rear end, of the left side of the upper face of the bending table, a material grabbing structure is arranged in a discharging opening, and a material moving structure automatically drives a material moving frame to move to a feeding position for feeding, drives the material moving frame to a bending position for bending and drives the material moving frame to move to a discharging position for discharging; through the switching structure, after one end of a material is bent, the material can be continuously moved along with the material moving structure, the material can be automatically driven to rotate by half circle, and the other end of the material is switched to be continuously bent, so that time and labor are saved during operation, the working efficiency is improved, the structure is simple, and the manufacturing cost is lower.

Description

Technical Field

[0001] The invention relates to the technical field of bending machines, and in particular to a CNC bending machine with an automatic feeding function. Background Art

[0002] The bending machine is a machine that can bend. Its structure mainly includes a bracket, a workbench and a clamping plate. The workbench is placed on the bracket. The workbench is composed of a base and a pressure plate. The base is connected to the clamping plate through a hinge. The base is composed of a base shell, a coil and a cover plate. The coil is placed in the depression of the base shell, and the top of the depression is covered with a cover plate. The bending machine in the prior art is coordinated by a workbench, a first vertical plate, a first motor, a turntable, a fixed block, a threaded rod, a threaded sleeve, a connecting rod, a second vertical plate, a transmission wheel, a pulley, a belt, a second motor, a first U-shaped plate, an electric telescopic rod, a second U-shaped plate and a pressure wheel, and has the advantages of automatic loading, simple operation, high bending efficiency, and convenience for bending steel bars of different thicknesses; However, in the actual bending process, when bending both ends of the material, it is necessary to loosen the material after bending one end of the material, and then turn the material over and re-clamp it to bend both ends of the material. The operation is time-consuming and laborious, or the two ends of the material are bent at the same time under the action of two sets of bending structures, which increases the manufacturing cost. Therefore, there is room for improvement. Summary of the invention

[0003] In order to solve the problems raised in the above background technology, the present invention provides a CNC bending machine with automatic feeding function.

[0004] The present invention provides a CNC bending machine with automatic feeding function, which adopts the following technical solution: A CNC bending machine with automatic feeding function comprises a bending table, a material shifting structure is arranged on the upper surface of the bending table, a bending structure is arranged in the middle of the upper surface of the bending table, a material discharge port is opened on the left side of the bending table near the rear end, a material discharge structure is arranged on the left side of the upper surface of the bending table near the rear end, and a material grabbing structure is arranged in the material discharge port; The material moving structure comprises an annular guide rail installed on the bending table, and a plurality of material moving plates are arranged on the annular guide rail at equal intervals, and vertical rods are fixedly passed through the four corners of each of the material moving plates, and rollers are rotatably arranged on the lower ends of the vertical rods, and the rollers are rotatably arranged on the annular guide rails, and a material moving frame is arranged on the material moving plate through a switching structure, and a rotating rod is rotatably passed through the front and rear sides of the bending table, and a rotating wheel is fixedly sleeved on the top end of the rotating rod, and belts are tightly sleeved on the two rotating wheels, and each of the material moving plates is connected to a connecting strip at the middle of one side surface of the belt, and a connecting rod is fixedly passed through one end of the connecting strip, and the bottom end of the connecting rod is connected to the belt, and a motor is installed at the front side of the lower side of the bending table, and the top end of the motor output shaft is connected to one of the rotating rods.

[0005] Preferably, the switching structure includes a rotating column rotatably connected to the middle part of the material moving plate, the first gear is fixedly mounted on the bottom end of the rotating column, the top end of the rotating column is connected to the material moving frame, the material moving frame is provided with a clamping structure, the material moving plate movably passes through a through bar, the first driving bar is connected between the two ends of the through bar, the first driving bar is provided with teeth meshing with the first gear, a fixed block is provided below the side of the material moving plate away from the belt, an insertion rod is fixedly passed through the fixed block, an annular groove is provided on the outside of the annular guide rail on the top of the bending table, the bottom end of the insertion rod is movably inserted into the annular groove, and a switching groove is provided at the front side of the left section of the annular groove.

[0006] Preferably, the bending structure includes a bending seat fastened by bolts in the middle of the bending table, a bending groove is opened in the middle of the bending seat, a mounting plate is arranged on the bending table near the bending seat, a hydraulic cylinder is arranged on the mounting plate, and a bending wheel is arranged at the bottom end of the hydraulic cylinder output shaft.

[0007] Preferably, a connecting groove is opened near the middle of the right end of the annular groove, a first inclined groove is opened near the middle of the left section of the annular groove, and a second inclined groove is opened near the position of the first inclined groove of the left section of the annular groove.

[0008] Preferably, the material discharge structure includes a mounting seat fastened by bolts on the right side of the bending table near the rear end, a storage seat is installed on the top of the mounting seat, a loading trough is opened on the front side of the storage seat, the lower inner wall of the storage seat is inclined downward toward the loading trough, a shielding edge is arranged on the front side edge of the storage seat, and a pushing structure is arranged on the storage seat.

[0009] Preferably, the pushing structure includes a fixed plate connected to the left end of the loading trough below the storage seat, a cylinder is installed on the fixed plate, one end of the cylinder output shaft is connected to the loading rod, and a loading column is installed at one end of the loading rod.

[0010] Preferably, the grabbing structure includes a first driving groove provided below the groove walls on both sides of the front and rear of the material discharge port, a T-shaped plate is inserted into the material discharge port, a fixed frame is movably mounted on the T-shaped plate, a driving rod is connected to the middle of the right side of the fixed frame, one end of the driving rod is connected to the loading rod, a first through rod is fixedly passed through the top end of the T-shaped plate, a sliding groove is provided on the T-shaped plate, sliders are slidably provided at both ends of the sliding groove, a movable plate is connected to the middle of the slider, a grabbing block is provided at the top of the movable plate through a rotating structure, and a driving structure is provided between the slider and the groove wall of the material discharge port.

[0011] Preferably, the driving structure includes a second through rod connected to the upper side of the two sliding blocks away from each other, a cross plate is connected between the groove walls on the front and rear sides of the discharge port, a third driving groove is opened at one end of the cross plate, and a second driving groove is opened at the other end of the cross plate, the second driving groove and the third driving groove are connected to each other, and the second through rod moves through the third driving groove.

[0012] Preferably, the rotating structure includes a rotating rod that rotates and passes through the top of the moving plate, one end of the rotating rod is connected to the grab block, and the second gear is fixedly mounted on one end of the rotating rod. The moving plate can move through the second driving bar near the second gear, and the second driving bar is provided with teeth meshing with the second gear. The bottom of the second driving bar is connected to the connecting plate, and one end of the connecting plate is fixedly connected to the third through rod, the upper edge of the discharge port is connected to the vertical plate, a horizontal groove is provided on the middle of the vertical plate, a fourth driving groove connecting the right end of the horizontal groove is provided on the vertical plate, and a fifth driving groove connecting the left end of the horizontal groove is provided on the vertical plate, and the third through rod movably passes through the fourth driving groove.

[0013] Preferably, the clamping structure comprises an electric telescopic rod installed in the middle of the outer sides of the material moving frame, one end of the output shaft of the electric telescopic rod is connected to a U-shaped bar, and clamping blocks are installed at both ends of the U-shaped bar.

[0014] In summary, the present invention includes the following beneficial technical effects: 1. The present invention is provided with a material moving structure and a switching structure. The material moving structure automatically drives the material moving frame to move to the loading position for loading, drives the material moving frame to the bending position for bending, and drives the material moving frame to move to the unloading position for unloading. In the material moving process, the switching structure can be used to automatically drive the material to rotate half a circle after bending one end of the material, and switch the other end of the material to continue bending. This operation saves time and labor, improves work efficiency, and has a simple structure and lower manufacturing cost. 2. The present invention is provided with a material discharge structure and a material pusher structure. The material to be bent is stored in the material discharge structure. When the material transfer frame on the material transfer structure moves to the material discharge structure, the material is automatically pushed onto the material transfer frame through the material pusher structure, thereby realizing the automatic loading function; 3. The present invention is provided with a grabbing structure, a driving structure and a rotating structure, so that the material can be moved to the unloading port after being bent at both ends. When the pushing structure is loading the material, it automatically drives the grabbing structure to grab the bent material in the material transfer frame to automatically unload the material, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of a CNC bending machine with automatic feeding function in an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure below the bending table in an embodiment of the present invention; Figure 3 It is a schematic diagram of the structure of the material transfer plate in an embodiment of the present invention; Figure 4 It is a schematic diagram of the structure of the annular groove on the bending table in an embodiment of the present invention; Figure 5 It is a structural schematic diagram of the discharge structure in an embodiment of the present invention; Figure 6 It is a schematic structural diagram of a feed opening in an embodiment of the present invention; Figure 7 In the embodiment of the present invention Figure 6 A magnified view of the structure at A; Figure 8 Schematic diagram of the structure of the T-shaped plate in an embodiment of the present invention.

[0016] Description of the accompanying drawings: 1. bending table; 2. rotating rod; 3. rotating wheel; 4. belt; 5. motor; 6. annular guide rail; 7. material transfer plate; 8. vertical rod; 9. roller; 10. connecting bar; 11. connecting rod; 12. material transfer frame; 13. rotating column; 14. first gear; 15. through bar; 16. first driving bar; 17. fixing block; 18. plug rod; 19. annular groove; 20. switching groove; 21. bending seat; 22. bending groove; 23. mounting plate; 24. hydraulic cylinder; 25. bending wheel; 26. connecting groove; 27. first inclined groove; 28. second inclined groove; 29. ​​mounting seat; 30. storage seat; 31. feeding groove; 32. shielding edge; 3 3. Fixed plate; 34. Cylinder; 35. Loading rod; 36. Loading column; 37. Unloading port; 38. Driving rod; 39. Fixed frame; 40. T-shaped plate; 41. Slide groove; 42. Sliding block; 43. Moving plate; 44. Grabbing block; 45. First through rod; 46. First driving groove; 47. Second through rod; 48. Second driving groove; 49. Transverse plate; 50. Third driving groove; 51. Rotating rod; 52. Second gear; 53. Second driving bar; 54. Connecting plate; 55. Third through rod; 56. Vertical plate; 57. Fourth driving groove; 58. Transverse groove; 59. Fifth driving groove; 60. Electric telescopic rod; 61. U-shaped bar; 62. Clamp. DETAILED DESCRIPTION

[0017] The following is combined with Figure 1-Figure 8 The present invention is described in further detail.

[0018] Reference Figure 1-Figure 8 The embodiment of the present invention discloses a CNC bending machine with an automatic feeding function, including a bending table 1, a material transfer structure is arranged on the upper part of the bending table 1, a bending structure is arranged in the middle part of the upper part of the bending table 1, a material discharge port 37 is opened on the left side of the bending table 1 near the rear end, a material discharge structure is arranged on the upper left side of the bending table 1 near the rear end, and a material grabbing structure is arranged in the material discharge port 37; The material shifting structure comprises an annular guide rail 6 installed on the bending table 1, and a plurality of material shifting plates 7 are arranged on the annular guide rail 6 at equal intervals, and vertical rods 8 are fixedly passed through the four corners of each material shifting plate 7, and rollers 9 are installed at the bottom ends of the vertical rods 8, and the rollers 9 are rotatably arranged on the annular guide rail 6, and a material shifting frame 12 is arranged on the material shifting plate 7 through a switching structure, and rotating rods 2 are rotatably passed through the front and rear sides of the bending table 1, and a rotating wheel 3 is fixedly sleeved on the top end of the rotating rod 2, and belts 4 are tightly sleeved on the two rotating wheels 3, and a connecting strip 10 is connected to the middle of one side of each material shifting plate 7 close to the belt 4, and a connecting rod 11 is fixedly passed through one end of the connecting strip 10, and the bottom end of the connecting rod 11 is connected to the belt 4, and a motor 5 is installed on the front side of the lower side of the bending table 1, and the top end of the output shaft of the motor 5 is connected to one of the rotating rods 2; The bending structure includes a bending seat 21 fastened by bolts at the middle of the bending table 1, a bending groove 22 is provided at the middle of the bending seat 21, a mounting plate 23 is provided on the bending table 1 near the bending seat 21, a hydraulic cylinder 24 is provided on the mounting plate 23, and a bending wheel 25 is provided at the bottom end of the output shaft of the hydraulic cylinder 24; The switching structure includes a rotating column 13 rotatably connected to the middle of the material moving plate 7, a first gear 14 is fixedly sleeved on the bottom end of the rotating column 13, the top end of the rotating column 13 is connected to the material moving frame 12, a clamping structure is provided on the material moving frame 12, a through-bar 15 is movably passed through the material moving plate 7, a first driving bar 16 is connected between the two ends of the through-bar 15, and the first driving bar 16 is provided with teeth meshing with the first gear 14, a fixed block 17 is provided below the side of the material moving plate 7 away from the belt 4, an insertion rod 18 is fixedly passed through the fixed block 17, an annular groove 19 is provided on the bending table 1 on the outside of the annular guide rail 6, the bottom end of the insertion rod 18 is movably inserted into the annular groove 19, and a switching groove 20 is provided at the front side of the left section of the annular groove 19; A connecting groove 26 is provided near the middle of the right end of the annular groove 19, a first inclined groove 27 is provided near the middle of the left section of the annular groove 19, and a second inclined groove 28 is provided near the first inclined groove 27 of the left section of the annular groove 19. When the material moving plate 7 drives the bottom end of the insertion rod 18 to slide in the connecting groove 26, when the metal rod is moved to the mounting plate 23, the first driving bar 16 is driven to move on the material moving plate 7 through the insertion rod 18, and the material moving frame 12 and the metal rod are driven to rotate and tilt as a whole through the first gear 14, so that during the material moving process, The metal rod can pass through the mounting plate 23 smoothly, so that the mounting plate 23 does not hinder the metal rod from moving smoothly to the bending seat 21 for bending. When one end of the insertion rod 18 slides in the first inclined groove 27, it can drive the material moving frame 12 and the metal rod to rotate as a whole on the other side of the bending seat 21, so that the metal rod can pass through the mounting plate 23 smoothly. When one end of the insertion rod 18 slides in the second inclined groove 28, it can drive the metal rod to rotate in the width direction of the bending table 1, so that it is convenient to carry out material unloading at the unloading port 37. The clamping structure includes an electric telescopic rod 60 installed in the middle of the outside of both sides of the material moving frame 12, one end of the output shaft of the electric telescopic rod 60 is connected to the U-shaped bar 61, and clamping blocks 62 are installed at both ends of the U-shaped bar 61. First, the motor 5 is started to drive the rotating rod 2, the rotating wheel 3 and the belt 4 to rotate as a whole, and the roller 9 on the material moving plate 7 is driven to roll on the annular guide rail 6 through the connecting rod 11 and the connecting bar 10. When the material moving plate 7 drives the metal rod clamped by the clamping block 62 in the material moving frame 12 to move to the bending seat 21, the hydraulic cylinder 24 is started to drive the bending wheel 25 to move downward, and one end of the metal rod is bent in the bending groove 22. After bending, the belt 4 continues to drive the bent metal rod to move on the annular guide rail 6, and when the material moving plate When the bottom end of the insert rod 18 is driven by the gear 7 to slide from the annular groove 19 to the switching groove 20, the insert rod 18 drives the first driving bar 16 on the penetration bar 15 to move on the material shifting plate 7, and drives the rotating column 13 and the material shifting frame 12 to rotate as a whole through the first gear 14, so that when the material shifting plate 7 drives the metal rod to move to the other side of the bending seat 21, the other end of the metal rod can be rotated and switched to the bending seat 21. At this time, the other material shifting plate 7 also drives the unbent metal rod to move to the bending seat 21. In this way, the downward movement of the bending wheel 25 can simultaneously bend the two metal rods close to each other at one end on the bending seat 21, and can also automatically realize the bending work of the two ends of the same metal rod during the material shifting process, thereby greatly improving the bending work efficiency.

[0019] See also Figure 1 and Figure 5 The material discharge structure includes a mounting seat 29 fastened by bolts on the right side of the bending table 1 near the rear end, a storage seat 30 is installed on the top of the mounting seat 29, a material loading trough 31 is opened on the front side of the storage seat 30, the lower inner wall of the storage seat 30 is inclined downward toward the material loading trough 31, a shielding edge 32 is arranged on the front side edge of the storage seat 30, and a material pushing structure is arranged on the storage seat 30; The pushing structure includes a fixed plate 33 connected to the left end of the loading trough 31 under the storage seat 30, and a cylinder 34 is installed on the fixed plate 33. One end of the output shaft of the cylinder 34 is connected to the loading rod 35, and one end of the loading rod 35 is installed with a loading column 36. Before loading, the metal rod to be bent is placed on the storage seat 30. Since the lower inner wall of the storage seat 30 is an inclined surface, the metal rod can roll smoothly into the loading trough 31. When loading, the cylinder 34 is started to drive the loading rod 35 and the loading column 36 to move as a whole in the loading trough 31, thereby pushing the metal rod in the loading trough 31 into the corresponding material moving frame 12, thereby realizing the automatic loading function.

[0020] See also Figure 1-Figure 8The material grabbing structure includes a first driving groove 46 provided below the groove wall on both sides of the front and rear of the material discharge port 37, a T-shaped plate 40 is inserted into the material discharge port 37, a fixed frame 39 is movably sleeved on the T-shaped plate 40, a driving rod 38 is connected to the middle of the right side of the fixed frame 39, one end of the driving rod 38 is connected to the material feeding rod 35, a first through rod 45 is fixedly passed through the top of the T-shaped plate 40, a slide groove 41 is provided on the T-shaped plate 40, sliders 42 are slidably provided at both ends of the slide groove 41, a moving plate 43 is connected to the middle of the slider 42, a material grabbing block 44 is provided at the top of the moving plate 43 through a rotating structure, and a driving structure is provided between the slider 42 and the groove wall of the material discharge port 37; The driving structure includes a second through rod 47 connected to the upper side of the two sliders 42 away from each other, and a transverse plate 49 is connected between the groove walls on both sides of the front and rear of the discharge port 37. A third driving groove 50 is opened at one end of the transverse plate 49, and a second driving groove 48 is opened at the other end of the transverse plate 49. The second driving groove 48 and the third driving groove 50 are connected to each other, and the second through rod 47 moves through the third driving groove 50; The rotating structure includes a rotating rod 51 that rotates and passes through the top of the moving plate 43. One end of the rotating rod 51 is connected to the grab block 44. A second gear 52 is fixedly sleeved on one end of the rotating rod 51. A second driving bar 53 is movably passed through the second gear 52 on the moving plate 43. The second driving bar 53 is provided with teeth that mesh with the second gear 52. The bottom end of the second driving bar 53 is connected to the connecting plate 54. One end of the connecting plate 54 is fixedly connected to the third through rod 55. The upper edge of the discharge port 37 is connected to the vertical plate 56. A horizontal groove 58 is provided in the middle of the vertical plate 56. The vertical plate 56 is provided with a connecting horizontal groove 58. 8, a fifth driving groove 59 connected to the left end of the horizontal groove 58 is provided on the vertical plate 56, and the third through rod 55 movably passes through the fourth driving groove 57. A material receiving frame is provided at the position of the material discharge port 37 below the bending table 1. When the material transfer plate 7 moves to the material discharge port 37, the electric telescopic rod 60 is started to drive the two groups of clamping blocks 62 to move away from each other, thereby releasing the bent metal rod on the corresponding material transfer frame 12. At this time, on the other material transfer plate 7, while the loading rod 35 and the loading column 36 are loading, the fixed frame 39 and T are driven by the driving rod 38. The T-shaped plate 40 moves as a whole in the direction away from the rotating wheel 3, driving one end of the first penetration rod 45 to slide in the first driving groove 46, and the first penetration rod 45 drives the T-shaped plate 40 to move upward on the fixed frame 39 to drive the two grabbing blocks 44 to move to both sides of the metal rod. As the T-shaped plate 40 continues to move, it drives the second penetration rod 47 to slide in the third driving groove 50, drives the two sliders 42 in the slide groove 41, and drives the two grabbing blocks 44 to move toward the side close to each other. The two grabbing blocks 44 are clamped to the metal rod, so that the movement of the T-shaped plate 40 can drive the metal rod to move. When the frame 12 moves toward the material receiving frame, and the third through rod 55 at one end of the connecting plate 54 slides in the fifth driving groove 59, it pulls the second driving bar 53 to move up and down on the moving plate 43, and drives the rotating rod 51 and the grab block 44 to rotate through the second gear 52, and the grab block 44 and the metal rod are tilted downward as a whole. Then, the T-shaped plate 40 continues to move, which will drive the second through rod 47 to slide in the second driving groove 48, and drive the two grab blocks 44 to move in opposite directions to loosen the metal rod, so that the metal rod can automatically slide from the grab block 44 to be collected in the material receiving frame, thereby realizing the automatic unloading function.

[0021] The implementation principle of a CNC bending machine with an automatic loading function in an embodiment of the present invention is as follows: first, the metal rod to be bent is placed on a storage seat 30. Since the lower inner wall of the storage seat 30 is an inclined surface, the metal rod can smoothly roll into the loading trough 31. When loading, the cylinder 34 is started to drive the loading rod 35 and the loading column 36 to move as a whole in the loading trough 31, thereby pushing the metal rod in the loading trough 31 into the corresponding material transfer frame 12 for automatic loading. After loading, the electric telescopic rod 60 is started to drive the two groups of clamping blocks 62 to move, and the metal rod is clamped and fixed on the material transfer frame 12. Then, the motor 5 is started to drive the rotating rod 2, the rotating wheel 3 and the belt 4 to rotate as a whole, and the roller 9 on the material transfer plate 7 is driven to rotate in the ring through the connecting rod 11 and the connecting bar 10. The first gear 14 drives the material moving frame 12 and the metal rod to rotate and tilt as a whole, so that the metal rod can pass smoothly through the mounting plate 23 during the material moving process, so as to avoid the mounting plate 23 hindering the metal rod from smoothly moving to the bending seat 21 for bending. Then the material moving plate 7 drives the metal rod to move to one side of the bending seat 21. At this time, the bottom end of the first plug rod 18 slides into the annular groove 19 again, and the metal rod is in the width direction of the bending table 1, and one end of the metal rod is above the bending groove 22. At this time, the material moving plate 7 stops moving. , start the hydraulic cylinder 24 to drive the bending wheel 25 to move down, and bend one end of the metal rod in the bending groove 22. After bending, the belt 4 continues to drive the bent metal rod to move on the annular guide rail 6, and when the material moving plate 7 drives the bottom end of the insertion rod 18 to slide from the annular groove 19 to the switching groove 20, the insertion rod 18 drives the first driving bar 16 on the penetration bar 15 to move on the material moving plate 7, and drives the rotating column 13 and the material moving frame 12 to rotate as a whole through the first gear 14, so that when the material moving plate 7 drives the metal rod to move to the other side of the bending seat 21, the other end of the metal rod can be rotated to switch to the bending seat 21. At this time, the other material moving plate 7 also drives the unbent metal rod to move to the bending seat 21, so that the downward movement of the bending wheel 25 can be simultaneously on the bending seat 21. The two metal rods are bent towards one end of each other, and then the shifting plate 7 drives the bent metal rods at both ends to move towards the discharge port 37. During this process, the shifting plate 7 drives the insertion rod 18 to slide in the first inclined slot 27 and the second inclined slot 28, driving the metal rod to tilt and smoothly pass through the mounting plate 23. After passing through the mounting plate 23, the metal rod continues to rotate until the metal rod is in the width direction of the bending table 1. Finally, the shifting frame 12 drives the bent metal rod to move to the position just above the discharge port 37, and the electric telescopic rod 60 is started to drive the two sets of clamping blocks 62 to move away from each other, thereby releasing the bent metal rod on the corresponding shifting frame 12. At this time, on the other shifting plate 7, the loading work is performed by the loading rod 35 and the loading column 36.The driving rod 38 drives the fixed frame 39 and the T-shaped plate 40 to move as a whole in the direction away from the rotating wheel 3, drives one end of the first through rod 45 to slide in the first driving groove 46, and the first through rod 45 drives the T-shaped plate 40 to move upward on the fixed frame 39, thereby driving the two grabbing blocks 44 to move to both sides of the metal rod. As the T-shaped plate 40 continues to move, it drives the second through rod 47 to slide in the third driving groove 50, drives the two sliders 42 in the slide groove 41, and drives the two grabbing blocks 44 to move toward the side close to each other. The two grabbing blocks 44 are clamped on the metal rod, so that the movement of the T-shaped plate 40 can The metal rod is driven to move on the material moving frame 12 toward the material receiving frame, and when the third through rod 55 at one end of the connecting plate 54 slides in the fifth driving groove 59, the second driving bar 53 is pulled to move up and down on the moving plate 43, and the rotating rod 51 and the grab block 44 are driven to rotate through the second gear 52, and the grab block 44 and the metal rod are tilted downward as a whole. Then, the T-shaped plate 40 continues to move, which will drive the second through rod 47 to slide in the second driving groove 48, and drive the two grab blocks 44 to move in opposite directions to loosen the metal rod, so that the metal rod can automatically slide from the grab block 44 to be collected in the material receiving frame, and then the material can be automatically unloaded.

[0022] The above are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A CNC bending machine with automatic loading function, comprising a bending table (1), characterized in that: A material transfer structure is arranged on the upper surface of the bending platform (1), a bending structure is arranged in the middle of the upper surface of the bending platform (1), a material discharge port (37) is provided on the left side of the bending platform (1) near the rear end, a material discharge structure is arranged on the left side of the upper surface of the bending platform (1) near the rear end, and a material grabbing structure is arranged in the material discharge port (37); The material transfer structure comprises an annular guide rail (6) mounted on the upper surface of the bending table (1); a plurality of material transfer plates (7) are arranged at equal intervals on the annular guide rail (6); vertical rods (8) are fixedly passed through the four corners of each material transfer plate (7); a roller (9) is mounted at the bottom end of the vertical rod (8); the roller (9) is rotatably mounted on the annular guide rail (6); a material transfer frame (12) is arranged on the material transfer plate (7) via a switching structure; and a rotating frame (12) is rotatably passed through the front and rear sides of the bending table (1). A rod (2), a rotating wheel (3) is fixedly sleeved on the top of the rotating rod (2), and belts (4) are tightly sleeved on the two rotating wheels (3). A connecting strip (10) is connected to the middle of a side surface of each of the material shifting plates (7) close to the belt (4), and a connecting rod (11) is fixedly passed through one end of the connecting strip (10), and the bottom end of the connecting rod (11) is connected to the belt (4). A motor (5) is installed at the front side of the lower side of the bending table (1), and the top end of the output shaft of the motor (5) is connected to one of the rotating rods (2).

2. The CNC bending machine with automatic feeding function according to claim 1 is characterized in that: The switching structure comprises a rotating column (13) rotatably connected to the middle of the material transfer plate (7), a first gear (14) being fixedly sleeved on the bottom end of the rotating column (13), a top end of the rotating column (13) being connected to the material transfer frame (12), a clamping structure being provided on the material transfer frame (12), a through-bar (15) movably passing through the material transfer plate (7), a first driving bar (16) being connected between the two ends of the through-bar (15), the first driving bar (16) being provided with teeth meshing with the first gear (14), a fixed block (17) being provided below a side of the material transfer plate (7) away from the belt (4), an insertion rod (18) being fixedly passed through the fixed block (17), an annular groove (19) being provided on the top of the bending table (1) and on the outside of the annular guide rail (6), the bottom end of the insertion rod (18) being movably inserted into the annular groove (19), a switching groove (20) being provided at the front side of the left section of the annular groove (19).

3. The CNC bending machine with automatic feeding function according to claim 1 is characterized in that: The bending structure comprises a bending seat (21) fastened to the middle of the bending platform (1) by bolts, a bending groove (22) being provided in the middle of the bending seat (21), a mounting plate (23) being provided on the bending platform (1) near the bending seat (21), a hydraulic cylinder (24) being provided on the mounting plate (23), and a bending wheel (25) being provided at the bottom end of the output shaft of the hydraulic cylinder (24).

4. The CNC bending machine with automatic feeding function according to claim 2 is characterized in that: A connecting groove (26) is provided near the middle of the right end of the annular groove (19), a first inclined groove (27) is provided near the middle of the left section of the annular groove (19), and a second inclined groove (28) is provided near the position of the first inclined groove (27) on the left section of the annular groove (19).

5. The CNC bending machine with automatic feeding function according to claim 1 is characterized in that: The material discharge structure comprises a mounting seat (29) fastened by bolts to the right side of the bending table (1) near the rear end, a storage seat (30) is mounted on the top of the mounting seat (29), a material loading trough (31) is provided on the front side of the storage seat (30), a lower inner wall of the storage seat (30) is inclined downward toward the material loading trough (31), a shielding edge (32) is provided on the front side edge of the storage seat (30), and a material pushing structure is provided on the storage seat (30).

6. The CNC bending machine with automatic feeding function according to claim 5 is characterized in that: The pushing structure comprises a fixing plate (33) connected to the left end of the loading trough (31) below the storage seat (30), a cylinder (34) being mounted on the fixing plate (33), one end of an output shaft of the cylinder (34) being connected to a loading rod (35), and one end of the loading rod (35) being mounted with a loading column (36).

7. The CNC bending machine with automatic feeding function according to claim 1 is characterized in that: The material grabbing structure comprises a first driving groove (46) provided below the groove walls on both sides of the material discharge port (37), a T-shaped plate (40) being inserted into the material discharge port (37), a fixed frame (39) being movably sleeved on the T-shaped plate (40), a driving rod (38) being connected to the middle of the right side of the fixed frame (39), one end of the driving rod (38) being connected to the material discharge rod (35), a first through rod (45) being fixedly passed through the top end of the T-shaped plate (40), a sliding groove (41) being provided on the T-shaped plate (40), sliders (42) being slidably provided at both ends of the sliding groove (41), a moving plate (43) being connected to the middle of the slider (42), a material grabbing block (44) being provided at the top end of the moving plate (43) through a rotating structure, and a driving structure being provided between the slider (42) and the groove wall of the material discharge port (37).

8. The CNC bending machine with automatic feeding function according to claim 7, characterized in that: The driving structure comprises a second through rod (47) connected to an upper portion of a side surface away from each other between the two sliding blocks (42); a transverse plate (49) is connected between the groove walls on both sides of the discharge port (37); a third driving groove (50) is provided at one end of the transverse plate (49); a second driving groove (48) is provided at the other end of the transverse plate (49); the second driving groove (48) and the third driving groove (50) are connected to each other; and the second through rod (47) moves through the third driving groove (50).

9. The CNC bending machine with automatic feeding function according to claim 7, characterized in that: The rotating structure comprises a rotating rod (51) that rotates and passes through the top of the moving plate (43); one end of the rotating rod (51) is connected to the grabbing block (44); a second gear (52) is fixedly sleeved on one end of the rotating rod (51); a second driving bar (53) is movably passed through a portion of the moving plate (43) near the second gear (52); the second driving bar (53) is provided with teeth that mesh with the second gear (52); the bottom end of the second driving bar (53) is connected to the second gear (52). The connecting plate (54) has one end fixedly connected to the third through-rod (55); the upper edge of the feed opening (37) is connected to the vertical plate (56); a horizontal groove (58) is provided in the middle of the vertical plate (56); a fourth driving groove (57) connected to the right end of the horizontal groove (58) is provided on the vertical plate (56); a fifth driving groove (59) connected to the left end of the horizontal groove (58) is provided on the vertical plate (56); and the third through-rod (55) movably passes through the fourth driving groove (57).

10. The CNC bending machine with automatic feeding function according to claim 2, characterized in that: The clamping structure comprises an electric telescopic rod (60) installed in the middle of the outer sides of the material transfer frame (12), one end of the output shaft of the electric telescopic rod (60) is connected to a U-shaped bar (61), and clamping blocks (62) are installed at both ends of the U-shaped bar (61).

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