Modular quick die changing numerical control bending machine worktable

Abstract

The application provides a numerical control bending machine workbench with modular quick die changing, which comprises a workbench body, the workbench body is a rectangular shell, an opening is arranged on the horizontal center axis of the upper end face of the workbench body, lifting devices are uniformly and fixedly connected in the inner cavity of the rectangular shell, a lower die is fixedly connected to the upper part of the lifting device, a cover body is fixedly connected to the rear side of the upper end face of the workbench body, hydraulic cylinders are fixedly connected to the left and right sides of the inner cavity bottom end face of the cover body, an upper die conversion assembly is fixedly connected to the extension end of the hydraulic cylinder, and the lower part of the upper die conversion assembly corresponds to the lower die, the device is simple in structure, convenient to operate and capable of effectively improving the working efficiency of the bending machine.

Description

Technical Field

[0001] This disclosure specifically discloses a mechanical equipment technology field, specifically relating to a modular, quick-change CNC bending machine worktable. Background Technology

[0002] A bending machine is a machine that can bend thin plates or round tubes. Its structure mainly includes a base, a worktable, and a clamping plate. The worktable is placed on the base and is equipped with a recessed lower bending die. A telescopic clamping device is installed above the worktable, and a raised upper bending die is set at the end of the clamping device. The upper bending die and the lower bending die are brought close to each other to achieve the clamping and bending of thin plates or tubes. Different die combinations can be used to make the plates or tubes into a variety of different workpieces to meet different customer needs. It is very easy to operate.

[0003] According to application number 202221862181.5, a CNC bending machine capable of rapid mold changing is disclosed. This invention relates to the field of mechanical equipment and aims to solve the problems of low efficiency and safety risks associated with manual mold changing. The key technical features include a worktable and a base. The worktable is fixedly mounted on the top wall of the base along the direction of gravity. An installation groove is provided along the long side of the top wall of the worktable. A displacement rod is slidably mounted on the inner wall of the installation groove. A lower bending mold is detachably mounted on one end of the displacement rod near the worktable. A support plate extends vertically upward from the top wall of the base. A hydraulic mounting plate extends horizontally from the support plate. Several vertical hydraulic telescopic columns are fixedly mounted on the side of the hydraulic mounting plate near the lower bending mold. Different types of upper bending molds are fixedly mounted at the ends of the hydraulic telescopic columns. The upper bending molds are aligned with the installation groove, achieving automated mold adjustment, improving changing efficiency, and avoiding safety risks.

[0004] Existing CNC bending machines require adjusting the position of the lower die to perform bending operations, which cannot be achieved by directly raising the lower die when needed, resulting in low work efficiency. Furthermore, existing upper dies are all bent using different electric push rods, making it impossible to achieve uniform bending when bending large thin plates. To address this, we propose a modular, quick-change CNC bending machine worktable. Summary of the Invention

[0005] In view of the above-mentioned defects or deficiencies in the prior art, this application aims to provide a structure that allows for the raising and lowering of the lower mold and the quick replacement of the upper mold.

[0006] A modular, quick-change CNC bending machine worktable includes a worktable body, which is a rectangular shell. An opening is provided at the transverse central axis of the upper end face of the worktable body. Lifting devices are uniformly and fixedly connected to the inner cavity of the rectangular shell. A lower die is fixedly connected to the upper part of the lifting device. A cover is fixedly connected to the rear side of the upper end face of the worktable body. Hydraulic cylinders are fixedly connected to the left and right sides of the bottom end face of the inner cavity of the cover. An upper die conversion assembly is fixedly connected to the extended end of the hydraulic cylinder, and the lower part of the upper die conversion assembly corresponds to the lower die.

[0007] According to the technical solution provided in the embodiments of this application, the lifting device includes a servo motor, a lead screw, a moving plate, a slide groove, a telescopic column, and a connecting block. A servo motor is uniformly fixedly connected to the front side of the bottom end face of the worktable cavity. A lead screw is fixedly connected to the end of the motor shaft of the servo motor. The end of the lead screw is movably connected to the top end face of the worktable cavity. A slide groove is uniformly fixedly connected to the rear end face of the worktable cavity. A moving plate is sleeved on the outer wall of the lead screw. The end of the moving plate is installed inside the slide groove. A connecting block is fixedly connected to the middle of the upper end face of the moving plate. The upper end face of the connecting block has a through opening extending to the upper end face of the worktable. A lower mold is fixedly connected to the upper end face of the connecting block. A telescopic column is fixedly connected to the middle of the bottom end face of the worktable cavity. The upper end face of the telescopic column is fixedly connected to the lower end face of the moving plate.

[0008] According to the technical solution provided in the embodiments of this application, the width of the slide is matched with that of the moving plate.

[0009] According to the technical solution provided in the embodiments of this application, the upper mold conversion assembly includes a support frame, a rotating roller, a stepper motor, and an upper bending head. The extended end of the hydraulic cylinder is fixedly connected to the support frame. The support frame is in the shape of a downward-opening groove. The rotating roller is movably connected to the inner cavity of the support frame. The upper bending head is uniformly fixedly connected to the outer wall of the rotating roller. The stepper motor is fixedly connected to the left end face of the support frame. The motor shaft of the stepper motor extends through the inner cavity of the support frame and is fixedly connected to the left end face of the rotating roller.

[0010] According to the technical solution provided in the embodiments of this application, the lifting device is provided in five groups, and the five groups of lifting devices are arranged in a linear array on the bottom end face of the inner cavity of the workbench.

[0011] According to the technical solution provided in the embodiments of this application, an operation panel is fixedly connected to the lower part of the left end face of the cover.

[0012] In summary, this application discloses a modular, quick-change CNC bending machine worktable.

[0013] Beneficial effects:

[0014] 1. By using a lifting device and a lower die, the servo motor and lead screw drive the moving plate to move linearly, thereby raising and lowering the lower die, improving the efficiency of manually adjusting the lower die, and thus improving processing efficiency.

[0015] 2. By using the upper die conversion component and hydraulic cylinder, and starting the stepper motor to drive the rotating roller to rotate, the upper bending head is adjusted to change. The hydraulic cylinder drives the upper bending head to rise and fall, which can complete the bending work of large workpieces and improve bending efficiency. Attached Figure Description

[0016] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0017] Figure 1 This is a schematic diagram of the CNC bending machine worktable with rapid mold changing in this application;

[0018] Figure 2 This is a schematic diagram of the left-side structure of the CNC bending machine worktable with rapid mold changing in this application;

[0019] Figure 3 This is a cross-sectional view of the CNC bending machine worktable with rapid mold changing in this application;

[0020] Figure 4 It is in this application Figure 3 Enlarged structural diagram at point A in the middle.

[0021] In the diagram: 1. Workbench body; 2. Cover body; 3. Opening; 4. Lower mold; 5. Control panel; 6. Hydraulic cylinder; 7. Upper mold conversion assembly; 71. Support frame; 72. Rotating roller; 73. Stepper motor; 74. Upper bend; 8. Servo motor; 9. Lead screw; 10. Moving plate; 11. Slide groove; 12. Telescopic column; 13. Connecting block. Detailed Implementation

[0022] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0023] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0024] As mentioned in the background section, in the existing CNC bending machine, the lower die needs to be adjusted to perform bending work, which cannot be done by directly raising the lower die to work, resulting in low work efficiency. In addition, the existing upper dies are all bent by different electric push rods, which cannot achieve uniform bending when bending large thin plates. This disclosure proposes a structure with a lower die that can be raised and lowered and an upper die that can be quickly changed.

[0025] Example 1

[0026] Please see Figure 1 A modular, quick-change CNC bending machine workbench includes a workbench body 1, which is a rectangular shell. To facilitate the lifting and lowering of the lower die 4, an opening 3 is provided at the transverse central axis of the upper end face of the workbench body 1. Lifting devices are uniformly fixedly connected inside the rectangular shell 1, and the lower die 4 is fixedly connected to the upper part of the lifting devices.

[0027] Please see Figure 1 To facilitate bending of thin plates, a cover 2 is fixedly connected to the rear side of the upper end face of the workbench body 1. The cover 2 can prevent workers from approaching the upper bending head 74, effectively avoiding injury. To ensure that the upper bending head 74 can be raised and lowered, hydraulic cylinders 6 are fixedly connected to the left and right sides of the bottom end face of the inner cavity of the cover 2. The extended end of the hydraulic cylinder 6 is fixedly connected to the upper mold conversion component 7. The upper bending head 74 corresponds to the lower mold 4, ensuring that the upper bending head 74 can be aligned with the inner cavity groove of the lower mold 4 to complete the bending work.

[0028] Please see Figure 4 To facilitate the lifting of the lower mold 4 and the replacement of different lower molds 4, a lifting device is constructed using a servo motor 8, a lead screw 9, a moving plate 10, a slide 11, a telescopic column 12, and a connecting block 13. Servo motors 8 are evenly fixedly connected to the front side of the bottom end face of the inner cavity of the worktable body 1. A lead screw 9 is fixedly connected to the end of the motor shaft of the servo motor 8, and the end of the lead screw 9 is movably connected to the top end face of the inner cavity of the worktable body 1. To ensure the normal lifting and lowering of the moving plate 10, a slide 11 is evenly fixedly connected to the rear end face of the inner cavity of the worktable body 1. A movable plate 10 is sleeved on the outer wall of the screw 9 in the groove 11, and the end of the movable plate 10 is installed inside the groove 11. A connecting block 13 is fixedly connected to the middle of the upper end face of the movable plate 10, and the upper end face of the connecting block 13 extends through the opening 3 to the upper end face of the workbench body 1. A lower mold 4 is fixedly connected to the upper end face of the connecting block 13. In order to ensure that the lower mold 4 can be supported by force, a telescopic column 12 is fixedly connected to the middle of the bottom end face of the inner cavity of the workbench body 1, and the upper end face of the telescopic column 12 is fixedly connected to the lower end face of the movable plate 10.

[0029] Please see Figure 4In order to ensure that the rotation of the lead screw 9 will not cause the moving plate 10 to deviate, the width of the slide groove 11 is matched with that of the moving plate 10 to ensure that the moving plate 10 is limited, thereby ensuring the stability of the moving plate 10.

[0030] Please see Figure 2 To facilitate the replacement of the upper bending head 74 and to bend the thin plate to different degrees, an upper mold conversion assembly 7 is formed by a support frame 71, a rotating roller 72, a stepper motor 73, and an upper bending head 74. The support frame 71 is fixedly connected to the extended end of the hydraulic cylinder 6, and the support frame 71 is a groove with an opening facing downwards. The rotating roller 72 is movably connected to the inner cavity of the support frame 71. The upper bending head 74 is evenly fixedly connected to the outer wall of the rotating roller 72. The stepper motor 73 is fixedly connected to the left end face of the support frame 71, and the motor shaft of the stepper motor 73 extends through the inner cavity of the support frame 71 and is fixedly connected to the left end face of the rotating roller 72.

[0031] Please see Figure 3 In order to replace different lower dies 4, five sets of lifting devices are provided, and the five sets of lifting devices are arranged in a linear array on the bottom end face of the inner cavity of the worktable body 1, so that different lower dies 4 can be replaced according to different bending requirements.

[0032] Example 2

[0033] Please see Figure 1 In order to quickly adjust the replacement of the upper bending head 74 and the lower die 4, an operation panel 5 is fixedly connected to the lower part of the left end face of the cover 2. The operation panel 5 controls the servo motor 8 and the stepper motor 73 to work, thereby changing different upper bending heads 74 and lower dies 4, effectively improving work efficiency.

[0034] Working principle: During use, according to the bending process requirements, the bending machine is started by connecting an external power source. Through the operation panel 5, the lower die 4 to be bent is adjusted, and the corresponding servo motor 8 is started. The servo motor 8 drives the lead screw 9 to rotate. Through the limit groove 11, the lead screw 9 drives the moving plate 10 to rise, thereby driving the connecting block 13 to rise and causing the lower die 4 to protrude. The upper bending head 74 that matches the lower die 4 also needs to be changed. The operation panel 5 starts the stepper motor 73, which drives the rotating roller 72 to rotate. The rotating roller 72 drives the upper bending head 74 to rotate, so that the required upper bending head 74 corresponds to the lower die 4. Then, the thin plate to be bent is placed on the upper surface of the lower die 4. The operator starts the hydraulic cylinder 6 by stepping on the pedal. The extended end of the hydraulic cylinder 6 drives the upper bending head 74 to move downward. The upper bending head 74 squeezes the thin plate to complete the bending work.

[0035] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A modular, quick-change CNC bending machine worktable, comprising a worktable body (1), characterized in that: The workbench body (1) is a rectangular shell. An opening (3) is provided at the transverse central axis of the upper end face of the workbench body (1). A lifting device is uniformly fixedly connected to the inner cavity of the rectangular shell. A lower mold (4) is fixedly connected to the upper part of the lifting device. A cover (2) is fixedly connected to the rear side of the upper end face of the workbench body (1). Hydraulic cylinders (6) are fixedly connected to the left and right sides of the bottom end face of the inner cavity of the cover (2). An upper mold conversion assembly (7) is fixedly connected to the extended end of the hydraulic cylinder (6), and the lower part of the upper mold conversion assembly (7) corresponds to the lower mold (4).

2. The modular, quick-change CNC bending machine workbench according to claim 1, characterized in that: The lifting device includes a servo motor (8), a lead screw (9), a moving plate (10), a slide groove (11), a telescopic column (12), and a connecting block (13). The servo motor (8) is uniformly fixedly connected to the front side of the bottom end of the inner cavity of the worktable body (1). The end of the motor shaft of the servo motor (8) is fixedly connected to the lead screw (9). The end of the lead screw (9) is movably connected to the top end of the inner cavity of the worktable body (1). The slide groove (11) is uniformly fixedly connected to the rear end face of the inner cavity of the worktable body (1). The lead screw (9) is externally... A movable plate (10) is fitted into the wall. The end of the movable plate (10) is installed inside the slide groove (11). A connecting block (13) is fixedly connected to the middle of the upper end face of the movable plate (10). The upper end face of the connecting block (13) extends through the opening (3) to the upper end face of the workbench body (1). A lower mold (4) is fixedly connected to the upper end face of the connecting block (13). The middle of the bottom end face of the inner cavity of the workbench body (1) is fixedly connected to the telescopic column (12). The upper end face of the telescopic column (12) is fixedly connected to the lower end face of the movable plate (10).

3. The modular, quick-change CNC bending machine workbench according to claim 2, characterized in that: The groove (11) is matched with the width of the moving plate (10).

4. The modular, quick-change CNC bending machine workbench according to claim 1, characterized in that: The upper mold conversion assembly (7) includes a support frame (71), a rotating roller (72), a stepper motor (73), and an upper bending head (74). The extended end of the hydraulic cylinder (6) is fixedly connected to the support frame (71). The support frame (71) is in the shape of a downward-opening groove. The rotating roller (72) is movably connected to the inner cavity of the support frame (71). The upper bending head (74) is uniformly fixedly connected to the outer wall of the rotating roller (72). The stepper motor (73) is fixedly connected to the left end face of the support frame (71). The motor shaft of the stepper motor (73) extends through the inner cavity of the support frame (71) and is fixedly connected to the left end face of the rotating roller (72).

5. A modular, quick-change CNC bending machine workbench according to claim 2, characterized in that: The lifting device is provided in five sets, and the five sets of lifting devices are arranged in a linear array on the bottom end face of the inner cavity of the workbench body (1).

6. The modular, quick-change CNC bending machine workbench according to claim 1, characterized in that: An operation panel (5) is fixedly connected to the lower left end face of the cover (2).

Images