Rapid die changing device of metal plate bending machine

Abstract

The utility model provides a quick die changing device of a metal plate bending machine, which belongs to the field of metal processing machinery and comprises a support frame and a top plate, a base is fixedly mounted on the upper portion of the support frame, and a die changing component for quickly changing a metal plate bending die is fixedly mounted on the upper portion of the base. The azimuth angle of the clamping jaw is accurately adjusted through the rotating disc, alignment operation on a target mold in the mold library assembly is achieved, and when it is detected that the operation distance exceeds the standard range, the first telescopic rod executes self-adaptive telescopic adjustment, when the distance is too long, the first telescopic rod automatically extends outwards to compensate displacement, and when the distance is too short, the first telescopic rod retracts inwards to avoid interference; after the gaskets arranged on the inner walls of the clamping jaws guarantee stable clamping and position calibration is completed, the first electric push rod drives the clamping jaws to be closed to achieve accurate grabbing, then the rotating disc rotates according to a preset track, and the mold is stably transferred into the sliding rail assembly.

Description

Technical Field

[0001] This utility model relates to the field of metal processing machinery, and more specifically, to a quick mold changing device for a sheet metal bending machine. Background Technology

[0002] The quick die-changing device for sheet metal bending machines is one of the key technologies for improving production efficiency and reducing die-changing costs in modern manufacturing. Its development closely follows the trend of industrial automation and intelligence, and shows significant advantages in multi-variety, small-batch production modes. In the early days, die changing for bending machines relied on manual operation, requiring the use of mechanical structures such as bolts and pressure plates to fix the die, which took several hours.

[0003] A search revealed that Chinese Patent Publication No. CN206139714U discloses a "Quick Clamping Device for Upper Die of a Bending Machine." This utility model discloses a quick clamping device for the upper die of a bending machine, comprising a machine body and a clamping device. The machine body includes a sheet metal lower outer cover, an electrical box, an upper worktable, and a touch control box. The clamping device is mounted on the upper worktable and includes a rear locking plate, a handle, a slanted stop block, a stop pin, and a slide groove. The stop pin and the slanted stop block are located on the left and right sides of the handle, respectively. The rear locking plate is fixedly connected to the upper worktable by screws. The upper die quick clamping device used in this bending machine can quickly clamp the die, and the screws fix the die, ensuring stable clamping. The locking direction of the handle is counterclockwise. The stop pin and the inclined block are located on the left and right sides of the handle, respectively. The structure is reasonable and easy to operate. The position of the adjusting screw is adjustable, allowing the clamping device to move along the adjusting block. The short cutter will not fall off, greatly shortening the adjustment time for clamping the upper die. The outer surface of the clamping device is also rust-proofed, making it very beautiful and increasing the rust prevention time, thus increasing the service life of the clamping device. However, the following defects still exist:

[0004] Manual mold changing is very time-consuming, and manual positioning has a large error, which can easily lead to angular deviation and increased workpiece scrap rate. In addition, frequent disassembly and assembly will accelerate the wear of mold positioning surfaces, and manual mold changing is very slow, which shortens the mold life. When producing multiple varieties, the traditional method requires a large amount of mold stacking area, which increases the floor space by 2-3 times. More importantly, manual operation makes it difficult to achieve intelligent production scheduling.

[0005] Therefore, a quick mold changing device for sheet metal bending machines is proposed. Utility Model Content

[0006] The purpose of this invention is to address the current problem of the inability to quickly change molds.

[0007] To achieve the above-mentioned objectives, this utility model provides the following technical solution:

[0008] The present invention is as follows: a quick mold changing device for a sheet metal bending machine, comprising a support frame, a base fixedly mounted on the upper part of the support frame, a mold changing component for quick mold changing of sheet metal bending dies fixedly mounted on the upper part of the base, a mold library component for storing sheet metal bending dies fixedly mounted on the right side of the mold changing component, a top plate fixedly mounted on the upper part of the mold library component, a slide rail component fixedly mounted on the lower part of the top plate and the upper part of the base, and an automatic clamping component fixedly mounted at the middle position of the upper part of the base, the automatic clamping component being located at the front position of the slide rail component.

[0009] As a preferred technical solution of this utility model, the mold changing assembly includes a rotating disk located on the upper right side of the base. A first telescopic rod is fixedly installed at the middle position of the upper part of the rotating disk. A spring is sleeved on the outside of the first telescopic rod. The spring is located on the upper part of the rotating disk. A first electric push rod is fixedly connected to the upper part of the first telescopic rod. A gripper for clamping the sheet metal bending mold is fixedly installed at the output end of the first electric push rod. A gasket is fixedly installed on the inner side of the gripper.

[0010] As a preferred technical solution of this utility model, the mold library assembly includes a vertical plate located on the right side of the top plate, and a mold positioning groove is fixedly installed on the left side wall of the vertical plate. There are two sets of mold positioning grooves, which are evenly distributed on the left side wall of the vertical plate.

[0011] As a preferred technical solution of this utility model, the slide rail assembly includes a screw located at the lower part of the top plate and the upper part of the base. The output end of the screw is fixedly connected to a motor. A slide groove is provided on the right side of the motor. The slide groove and the screw are connected by a slider. The slider cooperates with the screw to slide.

[0012] As a preferred technical solution of this utility model, the automatic clamping assembly includes a rectangular plate located on the outer side of the upper center of the base, a second electric push rod is installed through the center of the rectangular plate, and a second telescopic rod is fixedly connected to the output end of the second electric push rod.

[0013] As a preferred technical solution of this utility model, a magnetic waste collection trough is fixedly installed on the left side of the front part of the base, and a control system is fixedly installed on the right side of the magnetic waste collection trough.

[0014] As a preferred technical solution of this utility model, a back plate is fixedly connected to the rear of the top plate and the base, and a laser alignment sensor is fixedly installed at the upper part of the middle of the back plate.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. By using the mold changing component, the orientation angle of the gripper is precisely adjusted by the rotary table to achieve the alignment operation of the target mold in the mold library component. When the working distance is detected to be outside the standard range, the first telescopic rod performs adaptive extension and retraction adjustment: when the distance is too far, it automatically extends to compensate for the displacement, and when the distance is too close, it retracts to avoid interference. The pads configured on the inner wall of the gripper ensure a stable grip while effectively preventing scratches on the mold surface. After the position calibration is completed, the first electric push rod drives the gripper to close to achieve precise gripping. Then the rotary table rotates according to the preset trajectory to smoothly transfer the mold into the slide rail component.

[0017] 2. By using the set mold library components, the sheet metal bending molds to be used are placed in the mold positioning slots in advance. After the mold is placed in the slot, the positioning slot automatically locks in place to prevent the mold from tilting or falling off. Even if the machine vibrates, it is not a problem. The two sets of mold positioning slots can be used to place the upper and lower molds separately. When changing molds, the corresponding numbered positioning slot is directly found according to the system instructions, and the required upper or lower mold is automatically picked up. Attached Figure Description

[0018] Figure 1 A schematic diagram of the quick mold changing device for a sheet metal bending machine provided by this utility model;

[0019] Figure 2 A side sectional view of the quick mold changing device for a sheet metal bending machine provided by this utility model;

[0020] Figure 3 A schematic diagram of the bottom cross-sectional structure of the quick mold changing device for sheet metal bending machine provided by this utility model;

[0021] Figure 4 A partial side view of the quick mold changing device for a sheet metal bending machine provided by this utility model;

[0022] Figure 5 An enlarged structural schematic diagram of the mold changing component of the quick mold changing device for sheet metal bending machine provided by this utility model;

[0023] Figure 6 This is a partially enlarged structural diagram of the automatic clamping component of the quick mold changing device for sheet metal bending machines provided by this utility model.

[0024] The diagram shows: 1. Support frame; 2. Base; 3. Mold changing assembly; 301. Rotary disk; 302. First telescopic rod; 303. Spring; 304. First electric push rod; 305. Gripper; 306. Gasket; 4. Mold storage assembly; 401. Vertical plate; 402. Mold positioning groove; 5. Top plate; 6. Slide rail assembly; 601. Screw; 602. Motor; 603. Slide groove; 7. Automatic clamping assembly; 701. Second electric push rod; 702. Second telescopic rod; 8. Magnetic waste collection trough; 9. Control system; 10. Back plate; 11. Laser alignment sensor. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0026] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0027] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0028] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0029] like Figure 1 , Figure 2 ,and Figure 4 As shown, this embodiment proposes a quick mold changing device for a sheet metal bending machine, including a support frame 1. A base 2 is fixedly installed on the upper part of the support frame 1. A mold changing component 3 for quick mold changing of sheet metal bending dies is fixedly installed on the upper part of the base 2. A mold library component 4 for storing sheet metal bending dies is fixedly installed on the right side of the mold changing component 3. A top plate 5 is fixedly installed on the upper part of the mold library component 4. A slide rail component 6 is fixedly installed on the lower part of the top plate 5 and the upper part of the base 2. An automatic clamping component 7 is fixedly installed at the middle position of the upper part of the base 2, and the automatic clamping component 7 is located in front of the slide rail component 6. In use, different dies are stored in the mold library component 4 in an orderly manner. The system automatically retrieves the corresponding die from the mold library component 4, and the slide rail component 6 smoothly delivers the die to the working position.

[0030] like Figures 1-5 As shown, in a preferred embodiment, based on the above method, the mold changing assembly 3 further includes a rotating disk 301 located on the upper right side of the base 2. A first telescopic rod 302 is fixedly installed at the middle position of the upper part of the rotating disk 301. A spring 303 is sleeved on the outside of the first telescopic rod 302. The spring 303 is located on the upper part of the rotating disk 301. A first electric push rod 304 is fixedly connected to the upper part of the first telescopic rod 302. A gripper 305 for clamping the sheet metal bending mold is fixedly installed at the output end of the first electric push rod 304. A gasket 306 is fixedly installed on the inner side of the gripper 305. The rotation position of the gripper 305 is precisely adjusted by the rotary disk 301 to achieve the alignment operation of the target mold in the mold library component 4. When the working distance is detected to be outside the standard range, the first telescopic rod 302 performs adaptive telescopic adjustment: when the distance is too far, it automatically extends to compensate for the displacement; when the distance is too close, it retracts to avoid interference. The pads 306 configured on the inner wall of the gripper 305 ensure stable clamping. After the position calibration is completed, the first electric push rod 304 drives the gripper 305 to close and achieve precise gripping.

[0031] like Figure 1 , Figure 2 ,and Figure 4 As shown, in a preferred embodiment, based on the above method, the mold library assembly 4 further includes a vertical plate 401 located on the right side of the top plate 5. A mold positioning groove 402 is fixedly installed on the left side wall of the vertical plate 401. There are two sets of mold positioning grooves 402, evenly distributed on the left side wall of the vertical plate 401. The sheet metal bending mold to be used is placed in the mold positioning groove 402 in advance. After the mold is placed in the groove, the positioning groove automatically locks in place, preventing the mold from tilting or falling off. Even with machine vibration, it is not affected. The two sets of mold positioning grooves 402 can be used to partition and place the upper and lower molds. When changing molds, the corresponding numbered positioning groove is directly located according to system instructions, and the required upper or lower mold is automatically picked up.

[0032] like Figures 1-4 As shown in the preferred embodiment, based on the above method, the slide rail assembly 6 further includes a screw 601 located at the lower part of the top plate 5 and the upper part of the base 2. A motor 602 is fixedly connected to the output end of the screw 601. A slide groove 603 is provided on the right side of the motor 602. The slide groove 603 and the screw 601 are connected by a slider, which slides in conjunction with the screw 601. When the motor 602 is turned on, it drives the screw 601 to rotate. As the screw 601 rotates, the slider slides back and forth along the slide groove 603, moving the mold within the slide groove 603 together and sliding the mold to the working position.

[0033] like Figures 1-4 and Figure 6As shown, in a preferred embodiment, based on the above method, the automatic clamping assembly 7 further includes a rectangular plate located on the outer side of the upper center of the base 2. A second electric push rod 701 is installed through the center of the rectangular plate, and a second telescopic rod 702 is fixedly connected to the output end of the second electric push rod 701. After the mold slides to the second electric push rod 701, the second electric push rod 701 will push the second telescopic rod 702 forward until it tightly abuts against the mold, thus fixing the mold in place.

[0034] like Figures 1-4 As shown, in a preferred embodiment, based on the above method, a magnetic waste collection trough 8 is further fixedly installed on the front left side of the base 2, and a control system 9 is fixedly installed on the right side of the magnetic waste collection trough 8. The magnetic waste collection trough 8 ensures that the contact surface is clean and avoids positioning errors, and the control system 9 selects the mold that needs to be replaced as required.

[0035] like Figures 1-4 As shown, in a preferred embodiment, based on the above method, a back plate 10 is further fixedly connected to the rear of the top plate 5 and the base 2, and a laser alignment sensor 11 is fixedly installed at the upper part of the middle of the back plate 10. This allows for real-time monitoring of the mold clamping force, position, and mold temperature, preventing deviations from affecting the sheet metal bending effect.

[0036] Specifically, in use, the rapid die-changing device for this sheet metal bending machine involves placing the required sheet metal bending die in the die positioning slot 402 beforehand. After the die is placed in the slot, the positioning slot automatically locks in place to prevent the die from tilting or falling off. During die changing, the device directly locates the corresponding numbered positioning slot according to system instructions, automatically grabs the required upper or lower die, and precisely adjusts the rotation position of the gripper 305 via the rotary disc 301 to align the target die within the die library assembly 4. When the working distance is detected to exceed the standard range, the first telescopic rod 302 performs adaptive telescopic adjustment: it automatically extends outward to compensate for displacement when the distance is too far, and retracts inward to avoid interference when the distance is too close. After the pads 306 on the inner wall ensure stable clamping and position calibration, the first electric push rod 304 drives the gripper 305 to close for precise gripping. Then, the rotary disk 301 rotates along the preset trajectory, smoothly transferring the mold into the slide rail assembly 6. The motor 602 starts running and drives the screw 601 to rotate. When the screw 601 rotates, the slider slides back and forth along the slide groove 603. When sliding, it drives the mold in the slide groove 603 to move together and slide the mold to the working position. After the mold slides to the second electric push rod 701, the second electric push rod 701 will push the second telescopic rod 702 to extend forward until it tightly abuts against the mold and fixes the mold.

[0037] All technical features in this embodiment can be freely combined according to actual needs.

[0038] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A quick mold changing device for a sheet metal bending machine, comprising a support frame (1), characterized in that, A base (2) is fixedly installed on the upper part of the support frame (1). A mold changing component (3) for quick mold changing of sheet metal bending mold is fixedly installed on the upper part of the base (2). A mold library component (4) for storing sheet metal bending mold is fixedly installed on the right side of the mold changing component (3). A top plate (5) is fixedly installed on the upper part of the mold library component (4). A slide rail component (6) is fixedly installed on the lower part of the top plate (5) and the upper part of the base (2). An automatic clamping component (7) is fixedly installed at the middle position of the upper part of the base (2). The automatic clamping component (7) is located at the front position of the slide rail component (6).

2. The quick mold changing device for a sheet metal bending machine according to claim 1, characterized in that, The mold changing assembly (3) includes a rotating disk (301) located on the upper right side of the base (2). A first telescopic rod (302) is fixedly installed at the middle position of the upper part of the rotating disk (301). A spring (303) is sleeved on the outside of the first telescopic rod (302). The spring (303) is located on the upper part of the rotating disk (301). A first electric push rod (304) is fixedly connected to the upper part of the first telescopic rod (302). A gripper (305) for clamping the sheet metal bending mold is fixedly installed at the output end of the first electric push rod (304). A gasket (306) is fixedly installed on the inner side of the gripper (305).

3. The quick mold changing device for a sheet metal bending machine according to claim 1, characterized in that, The mold library assembly (4) includes a vertical plate (401) located on the right side of the top plate (5). A mold positioning groove (402) is fixedly installed on the left side wall of the vertical plate (401). There are two sets of mold positioning grooves (402), which are evenly distributed on the left side wall of the vertical plate (401).

4. The quick mold changing device for a sheet metal bending machine according to claim 1, characterized in that, The slide rail assembly (6) includes a screw (601) located at the lower part of the top plate (5) and the upper part of the base (2). The output end of the screw (601) is fixedly connected to a motor (602). A slide groove (603) is provided on the right side of the motor (602). The slide groove (603) and the screw (601) are connected by a slider. The slider slides in cooperation with the screw (601).

5. A quick mold changing device for a sheet metal bending machine according to claim 1, characterized in that, The automatic clamping assembly (7) includes a rectangular plate located on the outer side of the upper center of the base (2), and a second electric push rod (701) is installed through the center of the rectangular plate. The output end of the second electric push rod (701) is fixedly connected to a second telescopic rod (702).

6. A quick mold changing device for a sheet metal bending machine according to claim 1, characterized in that, A magnetic waste collection trough (8) is fixedly installed on the left side of the front part of the base (2), and a control system (9) is fixedly installed on the right side of the magnetic waste collection trough (8).

7. A quick mold changing device for a sheet metal bending machine according to claim 1, characterized in that, A back plate (10) is fixedly connected to the rear of the top plate (5) and the base (2), and a laser centering sensor (11) is fixedly installed in the upper part of the middle of the back plate (10).

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