Four-axis synchronous direct-drive full-servo bending machine

Abstract

The utility model discloses a four-axis synchronous direct-drive full-servo bending machine which comprises a bending machine frame, a servo motor is installed at the upper end of the bending machine frame, the output end of the servo motor is connected with a lead screw through a coupler, the outer side of the lead screw is in threaded connection with a movable rod, an upper die is installed at the lower end of the movable rod, and a lower die is installed at the lower end of the upper die. The front side of the moving rod is connected with a protective cover; a mounting frame is mounted on the inner side of the bending rack, a rotating rod is rotationally connected to the side face of the mounting frame, a locking plate is mounted at the end of the rotating rod, and a supporting seat is mounted on the outer side of the middle section of the rotating rod. According to the four-axis synchronous direct-driven full-servo bending machine, the supporting base is driven to rotate, the positions of the lower die a and the lower die b with different sizes are adjusted, the lower die a with the large size can conduct large-angle bending on a metal plate, and the lower die b with the small size can conduct small-angle bending on the metal plate; and the bending machine is flexibly suitable for bending metal plates of different models.

Description

Technical Field

[0001] The utility model relates to the technical field of bending machines, in particular to a four-axis synchronous direct-drive full-servo bending machine. Background Art

[0002] The servo bending machine realizes the precise bending and forming of metal sheets. When the servo motor drives the upper mold to bend the metal sheets, due to the different bending angles required for the processing and forming of different batches of metal sheets, the fixed lower mold limits the angle, resulting in the servo bending machine can only perform fixed-angle bending and cannot flexibly change and adjust its bending angle. In addition, during the bending process, if the bent workpiece deviates or breaks and splashes, it will cause injuries to the workers, and the processing safety is low. Utility Model Content

[0003] The purpose of the present invention is to provide a four-axis synchronous direct-drive full-servo bending machine to solve the problem raised by the above-mentioned background technology that the bending angle cannot be flexibly changed and adjusted in the current market, and if the bent workpiece deviates or breaks and splashes during the bending process, it will cause injuries to the workers.

[0004] To achieve the above-mentioned object, the utility model provides the following technical solution: a four-axis synchronous direct-drive full-servo bending machine, comprising a bending frame, a servo motor is installed on the upper end of the bending frame, the output end of the servo motor is connected to a lead screw through a coupling, the outer side of the lead screw is threadedly connected to a moving rod, the lower end of the moving rod is installed with an upper mold, and the front side of the moving rod is connected to a protective cover;

[0005] A mounting bracket is installed on the inner side of the bending machine frame, a rotating rod is rotatably connected to the side of the mounting bracket, a locking plate is installed on the end of the rotating rod, a support seat is installed on the outer side of the middle section of the rotating rod, and the upper and lower side surfaces of the support seat are respectively connected to the lower mold a and the lower mold b;

[0006] The lower mold a and the lower mold b are provided with limiting components for adjusting the bending angle of the metal sheet.

[0007] Preferably, the limiting assembly includes an adjustment plate slidably connected to the inner walls of the lower mold a and the lower mold b, the outer side of the adjustment plate is connected to a connecting block, the end of the connecting block is installed with a connecting plate, the outer side of the connecting plate is connected to a spring, and the end of the spring is installed with a locking frame.

[0008] Preferably, there are four groups of movable rods distributed parallel to each other, and the ends of the movable rods are connected to each other through an upper mold.

[0009] Preferably, the protective cover is a side "L"-shaped structure, and the lowest point of the protective cover is lower than the lowest point of the upper mold.

[0010] Preferably, the locking plate and the support seat are coaxially connected, and the locking plate and the mounting frame are fixed by bolts.

[0011] Preferably, the size of the lower mold a is larger than that of the lower mold b, and the lower mold a and the lower mold b are distributed on the upper and lower symmetrical surfaces of the support seat.

[0012] Preferably, the locking frame forms an elastic structure through a spring and a connecting plate, the connecting plate and the adjustment plate are connected by a connecting block, the connecting block slides through the side walls of the lower mold a and the lower mold b, and the locking frame is engaged with the lower mold a and the lower mold b.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] (1) The four-axis synchronous direct-drive full-servo bending machine adjusts the positions of the lower mold a and the lower mold b of different sizes by driving the support seat to rotate. The larger lower mold a can bend the metal sheet at a large angle, while the smaller lower mold b can bend the metal sheet at a small angle. It can flexibly adapt to the bending processing of different types of metal sheets. At the same time, the protective cover shields the bending area to avoid danger during the bending process, thereby improving the safety of the bending process.

[0015] (2) The four-axis synchronous direct-drive full-servo bending machine extends the inner wall length of the lower mold a or the lower mold b by driving the adjustment plate to move, and adjusts the bending angle of the metal sheet in a small range. That is, on the basis of the bending angle limit of the lower mold a and the lower mold b, the bending angle limit range is expanded, and the bending angle of the metal sheet is corrected more accurately, and different types of metal sheets can be flexibly bent. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the cross-sectional structure of the moving rod;

[0018] Figure 3 Schematic diagram of the mounting frame structure;

[0019] Figure 4 Schematic diagram of the cross-sectional structure of the lower mold b;

[0020] Figure 5 It is a schematic diagram of the cross-sectional structure of the lower mold a.

[0021] In the figure: 1. Bending machine frame; 2. Servo motor; 3. Screw; 4. Moving rod; 5. Upper mold; 6. Protective cover; 7. Mounting frame; 8. Rotating rod; 9. Locking plate; 10. Support seat; 11. Lower mold a; 12. Lower mold b; 13. Adjusting plate; 14. Locking frame; 15. Connecting block; 16. Connecting plate; 17. Spring. DETAILED DESCRIPTION

[0022] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1-Figure 5 The utility model provides the following technical solutions: a four-axis synchronous direct-drive full-servo bending machine, comprising a bending frame 1, a servo motor 2 is installed on the upper end of the bending frame 1, the output end of the servo motor 2 is connected to a screw rod 3 through a coupling, the outer side of the screw rod 3 is threadedly connected to a moving rod 4, the lower end of the moving rod 4 is installed with an upper mold 5, and the front side of the moving rod 4 is connected to a protective cover 6; a mounting frame 7 is installed on the inner side of the bending frame 1, and a rotating rod 8 is rotatably connected to the side of the mounting frame 7, a locking plate 9 is installed at the end of the rotating rod 8, a support seat 10 is installed on the outer side of the middle section of the rotating rod 8, and the upper and lower side surfaces of the support seat 10 are respectively connected to the lower mold a11 and the lower mold b12;

[0024] Furthermore, there are four groups of moving rods 4 distributed parallel to each other, and the ends of the moving rods 4 are connected to each other through the upper mold 5. The upper mold 5 can be moved by using four-axis synchronous driving to ensure its movement stability, and the downward pressure of the upper mold 5 can be accurately adjusted by using the rotation of the screw rod 3 to drive the moving rod 4 to move; the protective cover 6 is a side "L"-shaped structure, and the lowest point of the protective cover 6 is lower than the lowest point of the upper mold 5, so that when the upper mold 5 bends the metal sheet, the protective cover 6 can provide shielding and protection, thereby improving the safety of the bending process; the locking plate 9 and the support seat 10 are coaxially connected, and the locking plate 9 and the mounting frame 7 are fixed by bolts to achieve synchronous rotation of the locking plate 9 and the support seat 10, and the position of the support seat 10 is stabilized by fixing the locking plate 9; the size of the lower mold a11 is larger than that of the lower mold b12, and the lower mold a11 and the lower mold b12 are distributed on the upper and lower symmetrical surfaces of the support seat 10, and the lower mold a11 and the lower mold b12 can be used to limit the metal sheet to bend into different angles;

[0025] Specifically, the positions of the lower mold a11 and the lower mold b12 can be adjusted according to the angle range that the metal sheet needs to be bent. If the required bending angle is large, the support seat 10 can be turned through the rotating rod 8 to swap the positions of the lower mold a11 and the lower mold b12 so that the larger lower mold a11 faces upward. Then, the locking plate 9 and the mounting bracket 7 are locked with bolts to stabilize the position of the lower mold a11. The metal sheet is placed on the lower mold a11, and the servo motor 2 is powered on to control the rotation of the screw rod 3 connected to the output end. The four-axis synchronous direct-drive screw rod 3 rotates, and the screw rod 3 controls the outer screw The movable rod 4 connected with the groove moves downward, and the movable rod 4 controls the upper mold 5 installed at the lower end to move downward. The upper mold 5 presses and bends the metal sheet, and when the upper mold 5 moves downward to bend, the protective cover 6 on its front side moves downward synchronously to shield and protect the bending area to avoid danger during the bending process. After the bending is completed, the servo motor 2 can be controlled to reverse, thereby controlling the screw rod 3 to reverse, driving the movable rod 4 to drive the upper mold 5 to move upward and reset, and remove the bent metal sheet. If the required bending angle is small, the lower mold b12 can be rotated upward according to the above steps to bend the metal sheet at a small angle;

[0026] The lower mold a11 and the lower mold b12 are provided with a limit assembly for adjusting the bending angle of the metal sheet;

[0027] Furthermore, the limiting assembly includes an adjustment plate 13 slidably connected to the inner walls of the lower mold a11 and the lower mold b12. The outer side of the adjustment plate 13 is connected to a connecting block 15. The end of the connecting block 15 is mounted with a connecting plate 16. The outer side of the connecting plate 16 is connected to a spring 17. The end of the spring 17 is mounted with a locking frame 14.

[0028] Furthermore, the locking frame 14 forms an elastic structure with the connecting plate 16 through the spring 17. The connecting plate 16 is connected to the adjustment plate 13 through the connecting block 15. The connecting block 15 slides through the side walls of the lower mold a11 and the lower mold b12. The locking frame 14 is engaged with the lower mold a11 and the lower mold b12. By driving the adjustment plate 13 to move, the bending angle range defined by the lower mold a11 and the lower mold b12 is adjusted.

[0029] Specifically, the lower mold a11 and the lower mold b12 limit the bending angle of the metal sheet in a large range. The bending angle of the metal sheet can be adjusted in a small range by adjusting the position of the adjustment plate 13 in the lower mold a11 and the lower mold b12. The locking frame 14 is pulled to control the locking frame 14 to pull and store force on the spring 17. At the same time, the end of the locking frame 14 is moved out of the lower mold a11 and the lower mold b12, and the lock of the connecting plate 16 can be released. The connecting plate 16 can be controlled to move up, thereby controlling the adjustment plate 13 connected to it through the connecting block 15 to move up, and the adjustment plate 13 is moved out of the lower mold. a11 and the lower mold b12, on the basis of the bending angle limitation of the lower mold a11 and the lower mold b12, expand the bending angle limitation range, and flexibly perform bending processing on metal sheets of different types. Release the pull on the locking frame 14, and the spring 17 can control the locking frame 14 to reset and move, and clamp the locking frame 14 into the lower mold a11 and the lower mold b12 at the corresponding positions, lock the connecting plate 16, and thus stabilize the position of the adjustment plate 13, and can stably limit the bending angle of the metal sheet. The contents not described in detail in this specification belong to the existing technology known to professional and technical personnel in this field.

Claims

1. A four-axis synchronous direct-drive full-servo bending machine, comprising a bending frame (1), characterized in that: A servo motor (2) is installed at the upper end of the bending machine frame (1); the output end of the servo motor (2) is connected to a screw rod (3) via a coupling; the outer side of the screw rod (3) is threadedly connected to a moving rod (4); an upper mold (5) is installed at the lower end of the moving rod (4); and a protective cover (6) is connected to the front side of the moving rod (4); A mounting frame (7) is installed on the inner side of the bending machine frame (1), a rotating rod (8) is rotatably connected to the side of the mounting frame (7), a locking plate (9) is installed at the end of the rotating rod (8), a support seat (10) is installed on the outer side of the middle section of the rotating rod (8), and the upper and lower side surfaces of the support seat (10) are respectively connected to a lower mold a (11) and a lower mold b (12); The lower mold a (11) and the lower mold b (12) are provided with a limiting component for adjusting the bending angle of the metal plate.

2. The four-axis synchronous direct-drive full-servo bending machine according to claim 1, characterized in that: The limiting assembly includes an adjusting plate (13) slidably connected to the inner walls of the lower mold a (11) and the lower mold b (12), the outer side of the adjusting plate (13) is connected to a connecting block (15), the end of the connecting block (15) is installed with a connecting plate (16), the outer side of the connecting plate (16) is connected to a spring (17), and the end of the spring (17) is installed with a locking frame (14).

3. The four-axis synchronous direct-drive full-servo bending machine according to claim 1, characterized in that: The moving rods (4) are distributed in four groups in parallel with each other, and the ends of the moving rods (4) are connected to each other through an upper mold (5).

4. The four-axis synchronous direct-drive full-servo bending machine according to claim 1, characterized in that: The protective cover (6) is a side "L"-shaped structure, and the lowest point of the protective cover (6) is lower than the lowest point of the upper mold (5).

5. The four-axis synchronous direct-drive full-servo bending machine according to claim 1, characterized in that: The locking plate (9) and the support seat (10) are coaxially connected, and the locking plate (9) and the mounting frame (7) are fixed by bolts.

6. The four-axis synchronous direct-drive full-servo bending machine according to claim 1, characterized in that: The size of the lower mold a (11) is larger than the size of the lower mold b (12), and the lower mold a (11) and the lower mold b (12) are distributed on the upper and lower symmetrical surfaces of the support seat (10).

7. The four-axis synchronous direct-drive full-servo bending machine according to claim 2, characterized in that: The locking frame (14) forms an elastic structure with a spring (17) and a connecting plate (16); the connecting plate (16) is connected to the adjustment plate (13) via a connecting block (15); the connecting block (15) slides through the side walls of the lower mold a (11) and the lower mold b (12); and the locking frame (14) is engaged with the lower mold a (11) and the lower mold b (12).

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