Flexible bending machine for metal plates

Abstract

The utility model discloses a metal plate flexible bending machine, which relates to the technical field of bending machines, and comprises a rack and two symmetrically arranged support plates fixedly arranged on the table top of the rack, the upper end of each support plate is provided with a rotating groove, a cross rod is rotatably arranged in the rotating groove in a penetrating manner, the rod wall of the cross rod is fixedly sleeved with a bearing plate, and the bearing plate is positioned in the rotating groove. The ends of the two cross rods penetrate out of the supporting plate and are jointly provided with a driving mechanism used for driving the cross rods to rotate, a hydraulic cylinder is fixedly arranged at the top of the rack, the tail end of a piston rod of the hydraulic cylinder penetrates into the rack and is fixedly provided with a movable frame, a bidirectional lead screw rotationally penetrates through the inner wall of the movable frame, and the two ends of the rod wall of the bidirectional lead screw are sleeved with sliding rods in a threaded mode. According to the bending machine, the supporting plate, the transverse rod, the bearing plate, the driving mechanism, the moving frame, the bidirectional lead screw, the sliding rod, the bending plates and the connecting mechanism are provided, the angle between the two adjacent bending plates and the bearing plate can be adjusted according to the bending angle requirement, and the bending multifunctionality of the bending machine on the flexible metal plate is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bending machines, in particular to a sheet metal flexible bending machine. Background Art

[0002] The sheet metal flexible bending machine is a machine specially designed for bending thin plates and is a necessary mechanical equipment for sheet metal processing.

[0003] After searching, the patent number CN217528798U discloses a flexible bending machine mold with steerable sheet metal. The steering motor of the bending machine is arranged on the telescopic lower rod. The output end of the steering motor is connected to the lower clamping plate. The upper clamping plate is connected to the telescopic upper rod through a movable bearing. The sheet metal to be processed is placed between the lower clamping plate and the upper clamping plate. The lower clamping cylinder and the upper clamping cylinder are driven up and down to clamp the sheet metal, which is convenient for positioning and bending the sheet metal and improving the accuracy of bending.

[0004] However, the bending angle of the mold used for bending inside the above-mentioned bending machine is fixed, and the sheet metal parts can only be bent at a single angle, and the bending angle cannot be quickly adjusted according to different processing requirements, which reduces the bending effect of the bending machine. Utility Model Content

[0005] In view of the above problems existing in the existing sheet metal flexible bending machines, the present utility model is proposed.

[0006] Therefore, the utility model aims to provide a sheet metal flexible bending machine, which solves the problem that the bending angle of the mold used for bending inside the bending machine is fixed and the sheet metal parts can only be bent at a single angle.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A sheet metal flexible bending machine comprises a frame and two symmetrically arranged support plates fixedly arranged on the frame table, wherein a rotation groove is provided at the upper end of the support plate, a cross bar is rotatably inserted into the rotation groove, a receiving plate is fixedly sleeved on the rod wall of the cross bar, the receiving plate is located in the rotation groove, and the ends of the two cross bars are both inserted through the support plates and are jointly provided with a driving mechanism for driving the cross bars to rotate;

[0009] A hydraulic cylinder is fixedly provided on the top of the frame, and the end of the piston rod of the hydraulic cylinder passes through the frame and is fixedly provided with a moving frame. A bidirectional screw rod is rotatably passed through the inner wall of the moving frame, and sliding rods are threadedly sleeved on both ends of the rod wall of the bidirectional screw rod, and a bending plate is rotatably sleeved on the rod wall of the sliding rod, and the lower ends of the two bending plates are connected by a connecting mechanism, and the bidirectional screw rod can drive the bending plate to move so that the bending angle between the two bending plates can be adjusted.

[0010] Preferably, the connecting mechanism includes a connecting plate, and connecting rods are fixedly inserted into the inner lower ends of the two bending plates. The connecting plate is rotatably sleeved on the outer sides of the two connecting rods. An adjusting support mechanism for supporting the receiving plate is provided at the upper end of the table surface of the frame, which can stably connect the two adjacent bending plates when the bending plate rotates.

[0011] Preferably, the driving mechanism includes two symmetrically arranged worm wheels, which are fixedly sleeved on the outer side of the cross bar and meshed with a worm, and the worm is rotatably connected to the inner wall of the frame, and a transmission shaft is fixed between the two worms. The ends of the worms pass through the frame and are provided with a synchronous rotation mechanism for driving the bidirectional screw to rotate. The worm can mesh with the worm wheel and drive the connecting plate to rotate, thereby adjusting the support angle of the connecting plate.

[0012] Preferably, the synchronous rotation mechanism includes a rack, the ends of the worm and the bidirectional lead screw are fixedly sleeved with gears, the outer wall of the frame is fixedly provided with a U-shaped plate, the inside of the U-shaped plate is fixedly provided with a vertical rod, the rod wall sliding sleeve of the vertical rod is provided with a slider, the outer side of the slider is connected to the rack by a pressing meshing mechanism, the rack is matched with the gear, both ends of the vertical rod are sleeved with a first spring, the two ends of the first spring are respectively fixedly connected to the U-shaped plate and the slider, the rack can cooperate with the gear to drive the bidirectional lead screw and the worm to rotate synchronously, so that the bending angle adjustment work is carried out synchronously.

[0013] Furthermore, the pressing and engaging mechanism includes a support rod, which is fixedly arranged on the outer side of the sliding block, and the rod wall is slidably sleeved on the push plate, and the push plate is fixedly connected to the rack. The rod wall of the support rod is sleeved with a second spring, and the two ends of the second spring are respectively fixedly connected to the support rod and the push plate. The rack can engage with the gear after being pressed and drive the gear to rotate, thereby ensuring that the bidirectional lead screw and the worm are not affected during the bending work.

[0014] Preferably, the adjustment support mechanism includes a screw rod, a groove is opened at the outer lower end of the frame, the screw rod is rotatably arranged at the inner upper end of the groove, and a threaded tube is provided on the outer thread sleeve, and a top plate is rotatably sleeved on the top of the threaded tube. The top plate can move upward and contact with the supporting plate, and after the angle of the supporting plate is adjusted, it can provide stable support for the supporting plate when it is bent, thereby improving the bending stability.

[0015] Preferably, both ends of the bottom of the threaded tube are slidably penetrated with limit rods, and the limit rods are fixedly connected to the table top of the frame, and when the screw drives the threaded tube to move, the movement of the threaded tube is limited and supported.

[0016] Preferably, a rotating block is fixedly sleeved at the lower end of the screw rod, and the outer side of the rotating block passes through a groove and extends to the outside, so as to facilitate the rotation of the screw rod.

[0017] Preferably, a strip hole cooperating with the sliding of the bidirectional screw rod is opened at the upper end of the side wall of the frame, and the end of the bidirectional screw rod passes through the strip hole and extends to the outside, so that the bending plate can be moved down to perform the bending work.

[0018] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0019] 1. The utility model, through the supporting plate, cross bar, receiving plate, driving mechanism, mobile frame, bidirectional screw rod, sliding rod, bending plate and connecting mechanism, can adjust the angle between two adjacent bending plates and the receiving plate according to the bending angle requirements, thereby improving the bending versatility of the bending machine for flexible sheet metal.

[0020] 2. The utility model can adjust the angle between the two bending plates and the two receiving plates at the same time through the synchronous rotation mechanism, the pressing and engaging mechanism and the adjusting and supporting mechanism, thereby improving the convenience of using the bending machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0022] Figure 1 It is a schematic diagram of the structure of the utility model;

[0023] Figure 2 For the utility model Figure 1 A magnified schematic diagram of part A;

[0024] Figure 3 For the utility model Figure 1 An enlarged schematic diagram of part B;

[0025] Figure 4 It is a schematic diagram of the three-dimensional structure of the support plate of the utility model.

[0026] Description of reference numerals:

[0027] 1. Frame; 2. Support plate; 3. Cross bar; 4. Attachment plate; 5. Hydraulic cylinder; 6. Moving frame; 7. Bidirectional screw; 8. Sliding rod; 9. Bending plate; 10. Connecting plate; 11. Connecting rod; 12. Worm gear; 13. Worm; 14. Transmission shaft; 15. Rack; 16. Gear; 17. U-shaped plate; 18. Vertical rod; 19. Sliding block; 20. First spring; 21. Support rod; 22. Push plate; 23. Second spring; 24. Screw; 25. Threaded tube; 26. Top plate; 27. Limit rod; 28. Rotating block. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0029] The utility model embodiment discloses a sheet metal flexible bending machine.

[0030] Example 1

[0031] The utility model provides Figure 1-4 The sheet metal flexible bending machine shown includes a frame 1 and two symmetrically arranged support plates 2 fixedly arranged on the table of the frame 1, a rotation groove is opened at the upper end of the support plate 2, a cross bar 3 is rotatably penetrated in the rotation groove, a receiving plate 4 is fixedly sleeved on the rod wall of the cross bar 3, the receiving plate 4 is located in the rotation groove, the ends of the two cross bars 3 are both penetrated through the support plate 2 and are jointly provided with a driving mechanism for driving the cross bars 3 to rotate, the driving mechanism includes two symmetrically arranged worm gears 12, the worm gear 12 is fixedly sleeved on the outer side of the cross bar 3, and is meshed with a worm 13, the worm 13 is rotatably connected to the inner wall of the frame 1, and a transmission shaft 14 is commonly fixed between the two worm gears 13;

[0032] A hydraulic cylinder 5 is fixedly provided on the top of the frame 1, and the end of the piston rod of the hydraulic cylinder 5 passes through the frame 1 and is fixedly provided with a moving frame 6. A bidirectional screw rod 7 is rotatably provided on the inner wall of the moving frame 6. Both ends of the rod wall of the bidirectional screw rod 7 are threadedly sleeved with sliding rods 8. The rod wall of the sliding rod 8 is rotatably sleeved with a bending plate 9. The lower ends of the two bending plates 9 are connected by a connecting mechanism, and the connecting mechanism includes a connecting plate 10. The inner lower ends of the two bending plates 9 are fixedly penetrated with a connecting rod 11. The connecting plate 10 is rotatably sleeved on the outer sides of the two connecting rods 11. An adjusting support mechanism for supporting the receiving plate 4 is provided at the upper end of the table top of the frame 1.

[0033] Before bending the flexible sheet metal, determine the required bending angle and first rotate the two worms 13. The two worms 13 rotate synchronously under the connection of the transmission shaft 14. Since the thread directions of the rod walls of the two worms 13 are opposite, when the two worms 13 rotate, the two worm wheels 12 drive the two receiving plates 4 to rotate relative to each other and adjust the receiving angle therebetween. Then, rotate the bidirectional lead screw 7 to make the two slide bars 8 move in opposite directions. Under the rotation connection of the connecting plate 10 and the connecting rod 11, adjust the inclination angle between the two bending plates 9. Then, place the sheet metal on the two receiving plates 4 and start the hydraulic cylinder 5 so that the bending plate 9 is close to the sheet metal and cooperates with the receiving plate 4 to bend the sheet metal.

[0034] Example 2

[0035] Embodiment 2 is based on Embodiment 1 in order to simultaneously adjust the angles of the receiving plate 4 and the bending plate 9, such as Figure 1-2 and Figure 4 As shown, the end of the worm 13 passes through the frame 1 and is provided with a synchronous rotation mechanism for driving the bidirectional screw 7 to rotate. The synchronous rotation mechanism includes a rack 15. The upper end of the side wall of the frame 1 is provided with a strip hole for sliding with the bidirectional screw 7. The end of the bidirectional screw 7 passes through the strip hole and extends to the outside. The ends of the worm 13 and the bidirectional screw 7 are both fixedly sleeved with a gear 16. The outer wall of the frame 1 is fixedly provided with a U-shaped plate 17. The inside of the U-shaped plate 17 is fixedly provided with a vertical rod 18. The rod wall sliding sleeve of the vertical rod 18 is provided with a slider 19. The outer side of the slider 19 is passed through The pressing engagement mechanism is connected with the rack 15, the rack 15 is matched with the gear 16, both ends of the vertical rod 18 are sleeved with a first spring 20, and the two ends of the first spring 20 are respectively fixedly connected to the U-shaped plate 17 and the slider 19, and the pressing engagement mechanism includes a support rod 21, the support rod 21 is fixedly arranged on the outer side of the slider 19, and the rod wall is slidably sleeved on the push plate 22, the push plate 22 is fixedly connected to the rack 15, and the rod wall of the support rod 21 is sleeved with a second spring 23, and the two ends of the second spring 23 are respectively fixedly connected to the support rod 21 and the push plate 22.

[0036] When the bending angle needs to be adjusted, the push plate 22 is pressed so that the push plate 22 drives the rack 15 to move and mesh with the two gears 16. At this time, the push plate 22 slides along the support rod 21 and stretches the second spring 23. Subsequently, through the sliding cooperation of the vertical rod 18 and the slider 19, the rack 15 moves longitudinally and drives the two gears 16 to rotate, so that the bidirectional screw 7 and the worm 13 rotate synchronously, thereby driving the receiving plate 4 and the bending plate 9 to adjust the angle at the same time. At this time, the two first springs 20 are stretched and squeezed. When the bending angle is adjusted, the slider 21 and the push plate 22 are released, so that the rack 15 is separated from the gear 16 and rebounds to its original position without affecting the bending work.

[0037] Example 3

[0038] Embodiment 3 is based on Embodiment 1 in order to stably support the position of the receiving plate 4 during bending and ensure the bending stability. Figure 1 and Figure 3 As shown, the adjustment support mechanism includes a screw 24, a groove is opened at the lower end of the outer side of the frame 1, the screw 24 is rotatably arranged at the inner upper end of the groove, and a threaded tube 25 is provided on the outer thread sleeve, and a top plate 26 is rotatably sleeved on the top of the threaded tube 25, and limit rods 27 are slidably penetrated at both ends of the bottom of the threaded tube 25, and the limit rod 27 is fixedly connected to the table top of the frame 1, and a rotating block 28 is fixedly sleeved at the lower end of the screw 24, and the outer side of the rotating block 28 passes through the groove and extends to the outside.

[0039] After the bending angle of the receiving plate 4 is adjusted, the rotating block 28 can be rotated to rotate the screw rod 24, and the threaded tube 25 moves longitudinally under the sliding support of the two limit rods 27, and drives the top plate 26 to move up and contact the receiving plate 4, so that during the bending work, the receiving plate 4 can stably support the sheet metal and improve the bending stability.

Claims

1. A sheet metal flexible bending machine, comprising a frame (1) and two symmetrically arranged support plates (2) fixedly mounted on the table of the frame (1), characterized in that: The upper end of the support plate (2) is provided with a rotation groove, a cross bar (3) is rotatably inserted into the rotation groove, a receiving plate (4) is fixedly sleeved on the rod wall of the cross bar (3), and the receiving plate (4) is located in the rotation groove. The ends of the two cross bars (3) are both inserted through the support plate (2) and are jointly provided with a driving mechanism for driving the cross bars (3) to rotate; A hydraulic cylinder (5) is fixedly provided on the top of the frame (1), the piston rod end of the hydraulic cylinder (5) penetrates into the frame (1) and is fixedly provided with a movable frame (6), a bidirectional screw rod (7) is rotatably provided through the inner wall of the movable frame (6), a sliding rod (8) is threadedly provided on both ends of the rod wall of the bidirectional screw rod (7), a bending plate (9) is rotatably provided on the rod wall of the sliding rod (8), and the lower ends of the two bending plates (9) are connected by a connecting mechanism.

2. The sheet metal flexible bending machine according to claim 1, characterized in that: The connection mechanism comprises a connecting plate (10), the inner lower ends of the two bending plates (9) are fixedly provided with connecting rods (11), the connecting plate (10) is rotatably sleeved on the outer sides of the two connecting rods (11), and the upper end of the table top of the frame (1) is provided with an adjustment support mechanism for supporting the receiving plate (4).

3. The sheet metal flexible bending machine according to claim 1, characterized in that: The driving mechanism comprises two symmetrically arranged worm wheels (12), the worm wheels (12) being fixedly sleeved on the outer side of the cross bar (3) and meshingly provided with a worm (13), the worm (13) being rotatably connected to the inner wall of the frame (1), a transmission shaft (14) being fixedly provided between the two worms (13), the ends of the worms (13) passing through the frame (1) and provided with a synchronous rotation mechanism for driving the bidirectional screw (7) to rotate.

4. The sheet metal flexible bending machine according to claim 3, characterized in that: The synchronous rotation mechanism comprises a rack (15), the ends of the worm (13) and the bidirectional lead screw (7) are fixedly sleeved with gears (16), the outer wall of the frame (1) is fixedly provided with a U-shaped plate (17), the interior of the U-shaped plate (17) is fixedly provided with a vertical rod (18), the rod wall of the vertical rod (18) is slidably sleeved with a slider (19), the outer side of the slider (19) is connected to the rack (15) through a pressing meshing mechanism, the rack (15) and the gear (16) are arranged in coordination, both ends of the vertical rod (18) are sleeved with a first spring (20), and the two ends of the first spring (20) are respectively fixedly connected to the U-shaped plate (17) and the slider (19).

5. The sheet metal flexible bending machine according to claim 4, characterized in that: The pressing and engaging mechanism comprises a support rod (21), the support rod (21) is fixedly arranged on the outer side of the slider (19), and the rod wall is slidably sleeved on the push plate (22), the push plate (22) is fixedly connected to the rack (15), and the rod wall of the support rod (21) is sleeved with a second spring (23), and the two ends of the second spring (23) are respectively fixedly connected to the support rod (21) and the push plate (22).

6. The sheet metal flexible bending machine according to claim 2, characterized in that: The adjusting support mechanism comprises a screw rod (24), a groove is formed at the lower outer end of the frame (1), the screw rod (24) is rotatably arranged at the inner upper end of the groove, and a threaded tube (25) is rotatably sleeved on the outer thread, and a top plate (26) is rotatably sleeved on the top of the threaded tube (25).

7. The sheet metal flexible bending machine according to claim 6, characterized in that: Limit rods (27) are slidably penetrated through both ends of the bottom of the threaded tube (25), and the limit rods (27) are fixedly connected to the table top of the frame (1).

8. The sheet metal flexible bending machine according to claim 6, characterized in that: A rotating block (28) is fixedly sleeved at the lower end of the screw rod (24), and the outer side of the rotating block (28) passes through a groove and extends to the outside.

9. The sheet metal flexible bending machine according to claim 1, characterized in that: A strip-shaped hole for slidingly cooperating with a bidirectional screw rod (7) is provided at the upper end of the side wall of the frame (1), and the end of the bidirectional screw rod (7) passes through the strip-shaped hole and extends to the outside.

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