Workpiece bending mechanism facilitating die replacement

Abstract

The utility model discloses a die workpiece bending mechanism convenient to replace, which comprises a frame body, the top of the frame body is provided with a bending mechanism for stamping a plate, one side of the frame body is fixedly connected with a base, the top of the base is provided with two dovetail grooves, the two dovetail grooves are internally connected with dovetail guide rails in a sliding manner, and the dovetail guide rails are connected with the dovetail guide rails in a sliding manner. A plurality of inserting holes are formed in the sides of the adjacent faces of the two dovetail guide rails, a bending mold is fixedly connected to the tops of the two dovetail guide rails, and a downward-opening-type avoiding groove is formed in the base. The dovetail groove and the dovetail guide rail are matched for use, so that the bending die is convenient to replace, an operator only needs to accurately align the bending die with the dovetail guide rail along the dovetail groove, and quick assembly and disassembly of the die can be easily realized by utilizing the shape characteristics and the guide function of the dovetail groove and the dovetail guide rail, so that the replacement efficiency is remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of bending mold technology, and in particular to a workpiece bending mechanism that facilitates mold replacement. Background Technology

[0002] A bending machine is a machine that can bend thin plates. Its structure mainly includes a support, a worktable and a clamping plate. The worktable is placed on the support and consists of a base and a pressure plate. The base is connected to the clamping plate by a hinge. The base consists of a housing, a coil and a cover plate. The coil is placed in the recess of the housing and the top of the recess is covered by the cover plate.

[0003] The existing bending machines use screws and nuts to fix the bending dies. While this method can ensure the stability of the dies, when the dies need to be replaced, the screws and nuts must be removed one by one, which is quite time-consuming and affects the efficiency of the production line. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a workpiece bending mechanism that facilitates mold replacement.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A workpiece bending mechanism for easy mold replacement includes a frame. The top of the frame is equipped with a bending mechanism for stamping sheet metal. A base is fixedly connected to one side of the frame. Two dovetail grooves are formed on the top of the base, and dovetail guide rails are slidably connected within each groove. Multiple insertion holes are formed on the adjacent side of each dovetail guide rail. A bending mold is fixedly connected to the top of each dovetail guide rail. A downward-opening clearance groove is formed within the base. Two symmetrically distributed sliding grooves are formed on the top of the base, and inserts that engage with the insertion holes are slidably connected within these grooves. Elastic components for resetting the inserts are provided within each of the sliding grooves. A pull rope is connected to one side of each insert via a rope buckle, and a stepping mechanism for moving the insert is provided at one end of the pull rope.

[0007] As a further embodiment of this utility model, the bending mechanism includes a hydraulic cylinder, which is fixedly connected to the top of the frame. The telescopic part of the hydraulic cylinder passes through the frame and is fixedly connected to a movable frame. A limiting rod passing through the frame is fixedly connected to the top of the movable frame, and a bending pressure knife is fixedly connected to the bottom of the movable frame.

[0008] As a further embodiment of this utility model, the elastic component consists of two first guide rods, both of which are fixedly connected in the slide groove and pass through the insert. A first spring is sleeved on the outer side of each of the two first guide rods, and the two ends of the first spring are fixed to the insert and the slide groove, respectively.

[0009] As a further embodiment of this utility model, the pedal mechanism includes multiple grooves, which are symmetrically opened on both sides of the relief groove. A pedal that moves along the groove is provided in the relief groove. A second guide rod passing through the pedal is fixedly connected in each of the multiple grooves. A second spring is sleeved on the outside of each of the multiple second guide rods, and the two ends of the second spring are fixed to the pedal and the groove respectively. Two rotating wheels that guide the pull rope are provided in the relief groove.

[0010] As a further embodiment of this utility model, a top plate is fixedly connected to the top of the base, and the height of the top surface of the top plate is equal to the height of the bottom surface of the bending mold.

[0011] As a further embodiment of this utility model, two symmetrically distributed support seats are fixedly connected to one side of the base, and a safety light curtain is fixedly connected to the top of the support seats.

[0012] As a further improvement of this utility model, the top of the pedal is provided with uniformly distributed anti-slip rubber strips.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. With the dovetail groove and dovetail guide rail, the bending die can be easily replaced. The operator only needs to align the bending die with the dovetail guide rail precisely along the dovetail groove. By utilizing the shape characteristics and guiding effect of the two, the die can be easily and quickly loaded and unloaded, thus significantly improving the replacement efficiency.

[0015] 2. With the addition of insertion holes and brackets, the bending die can be quickly fixed, significantly improving the convenience of die installation and disassembly, making the operation process more efficient and flexible, thereby reducing the labor required.

[0016] 3. With the addition of a pedal, when it is necessary to replace the bending die, simply step on the pedal. The mechanical structure of the pedal will cause the insert to detach from the bending die, making the bending die easy to remove. This greatly simplifies the operation process of inserting and replacing the bending die and improves convenience. Attached Figure Description

[0017] Figure 1 This is a front three-dimensional structural diagram of a workpiece bending mechanism that facilitates mold replacement proposed in this utility model;

[0018] Figure 2 This is a cross-sectional view of a slide frame structure for a workpiece bending mechanism that facilitates mold replacement, as proposed in this utility model.

[0019] Figure 3 This is a partial disassembled structural diagram of a workpiece bending mechanism that facilitates mold replacement proposed in this utility model;

[0020] Figure 4 This is a cross-sectional view of the base structure of a workpiece bending mechanism for easy mold replacement proposed in this utility model;

[0021] Figure 5 This is an enlarged structural diagram of part A of a workpiece bending mechanism that facilitates mold replacement, as proposed in this utility model.

[0022] Figure 6 This is an enlarged structural diagram of part B of a workpiece bending mechanism that facilitates mold replacement, as proposed in this utility model.

[0023] In the diagram: 1. Frame; 2. Movable frame; 3. Bending die; 4. Base; 5. Limiting rod; 6. Hydraulic cylinder; 7. Bending pressure knife; 8. Top plate; 9. Insertion hole; 10. Safety light curtain; 11. Support base; 12. Alternating groove; 13. Pull rope; 14. Rotary wheel; 15. Dovetail groove; 16. Insertion frame; 17. Slide groove; 18. First spring; 19. First guide rod; 20. Second guide rod; 21. Second spring; 22. Groove; 23. Pedal; 24. Dovetail guide rail. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. The described embodiments are only some embodiments of the present utility model, not all embodiments. Other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are all within the protection scope of the present utility model.

[0025] Reference Figures 1-6 A workpiece bending mechanism that facilitates mold replacement includes a frame 1. The top of the frame 1 is equipped with a bending mechanism for stamping sheet metal. The bending mechanism includes a hydraulic cylinder 6, which is fixed to the top of the frame 1 by bolts. The telescopic part of the hydraulic cylinder 6 passes through the frame 1 and is fixed to a movable frame 2 by bolts. The top of the movable frame 2 is fixed to a limiting rod 5 that passes through the frame 1 by bolts. The bottom of the movable frame 2 is fixed to a bending cutter 7 by bolts. The telescopic part of the hydraulic cylinder 6 drives the movable frame 2 and the bending cutter 7 to move vertically along the axial direction of the limiting rod 5, thereby increasing the stability of the device.

[0026] In this invention, a base 4 is bolted to one side of the frame 1. Two dovetail grooves 15 are formed on the top of the base 4, and dovetail guide rails 24 are slidably connected within each dovetail groove 15. The dovetail grooves 15 and dovetail guide rails 24 work together to facilitate the replacement of the bending die 3. The operator only needs to precisely align the bending die 3 with the dovetail guide rails 24 along the dovetail grooves 15. Utilizing the shape characteristics and guiding effect of both, the die can be easily and quickly loaded and unloaded, thus significantly improving replacement efficiency. Multiple insertion holes 9 are provided on one side of the tail guide rail 24. The top of the two dovetail guide rails 24 is fixed with bending mold 3 by bolts. The base 4 has a downward open clearance groove 12. The top of the base 4 has two symmetrically distributed sliding grooves 17. The sliding grooves 17 are slidably connected with the brackets 16 that are inserted into the insertion holes 9. With the insertion holes 9 and the brackets 16, the bending mold 3 can be quickly fixed, which significantly improves the convenience of mold installation and disassembly, making the operation process more efficient and flexible, thereby reducing the output of manpower.

[0027] In particular, both slides 17 are equipped with elastic components to reset the insert 16. These elastic components consist of two first guide rods 19, both of which are bolted into the slides 17 and pass through the insert 16. A first spring 18 is sleeved on the outer side of each first guide rod 19. The two ends of the first spring 18 are fixed to the insert 16 and the slide 17, respectively. When the insert 16 moves inward along the axial direction of the first guide rod 19, it compresses the first spring 18, generating a restoring force. When the pull rope 13 does not... When tension is applied, the restoring force of the first spring 18 can reset the insert 16, thereby increasing the convenience of the device. One side of each insert 16 is connected to a pull rope 13 via a rope buckle. One end of the pull rope 13 is equipped with a foot pedal mechanism for moving the insert 16. The foot pedal mechanism includes multiple grooves 22, symmetrically arranged on both sides of the clearance groove 12. A pedal 23 that moves along the groove 22 is provided within the clearance groove 12. A second guide rod 20 passing through the pedal 23 is bolted into each of the multiple grooves 22. Each of the two guide rods 20 is fitted with a second spring 21, and the two ends of the second spring 21 are fixed to the pedal 23 and the groove 22 respectively. The clearance groove 12 is provided with two rotating wheels 14 to guide the pull rope 13. Whether the bending die 3 is being installed or removed, the pedal 23 needs to be pressed down so that the pull rope 13 is pulled inward along the axial direction of the first guide rod 19 by the guide of the rotating wheels 14, so that the pull rope 16 is disengaged from the dovetail groove 15. When installation is required, the pedal 23 also needs to be pressed down so that the pull rope 13 is pulled inward by the pull of the pull rope 13. The insertion bracket 16 is disengaged from the dovetail groove 15. At this time, the bending mold 3 with the dovetail guide rail 24 is installed into the dovetail groove 15. When the foot is lifted, the pedal 23 is lifted to its original position by the restoring force of the second spring 21. The insertion bracket 16 is also returned to its initial position by the restoring force of the first spring 18. As the insertion bracket 16 returns to its original position, it is inserted into the insertion hole 9, which allows for quick fixation of the bending mold 3. This significantly improves the convenience of mold installation, making the operation process more efficient and flexible, thereby reducing the output of manpower.

[0028] In particular, a top plate 8 is bolted to the top of the base 4, and the height of the top surface of the top plate 8 is equal to the height of the bottom surface of the bending die 3. The top plate 8 facilitates the inspection and maintenance of the insert 16, the first guide rod 19, and the first spring 18, increasing the convenience of the device. Two symmetrically distributed support seats 11 are bolted to one side of the base 4. A safety light curtain 10 is bolted to the top of the support seats 11. With the setting of the safety light curtain 10, when a worker's limb enters the light curtain detection area, the safety light curtain 10 can quickly sense this change and immediately send a signal to the control system. After receiving the signal, the control system immediately interrupts the operation command of the equipment, causing the equipment to stop working, thereby avoiding any possible harm to the human body. The top of the pedal 23 is provided with evenly distributed anti-slip rubber strips. The setting of the anti-slip rubber strips increases the friction between the foot and the pedal 23, thereby increasing practicality.

[0029] Working principle: When it is necessary to remove the bending die 3, the pedal 23 needs to be stepped on. The pedal 23 will move downward along the groove surface of the groove 22 and the axis of the second guide rod 20. At this time, the second spring 21 will be compressed to generate a restoring force. As the pedal 23 moves downward, it will pull the pull rope 13 downward. At this time, the rotating wheel 14 in the clearance groove 12 will pull the rope 13 for auxiliary guidance. By pulling the rope 13, the insert 16 will move inward along the axis of the first guide rod 19, and at the same time, it will compress the first spring 18 to generate a restoring force. When the insert 16 is completely disengaged from the insertion hole 9 on the dovetail guide rail 24, the bending die 3 with the dovetail guide rail 24 can be removed from the dovetail groove 15 of the base 4. The shape and guiding function allow for easy and quick disassembly of the mold, significantly improving replacement efficiency. When installation is required, the pedal 23 needs to be stepped on, and the pull rope 13 is used to disengage the insert 16 from the dovetail groove 15. At this time, the bending mold 3 with the dovetail guide rail 24 is installed into the dovetail groove 15. When the foot is lifted, the pedal 23 is lifted back to its original position by the restoring force of the second spring 21, and the insert 16 is also returned to its initial position by the restoring force of the first spring 18. As the insert 16 returns to its original position, it is inserted into the insertion hole 9, which allows for quick fixation of the bending mold 3. This significantly improves the convenience of mold installation, making the operation process more efficient and flexible, thereby reducing the output of manpower.

[0030] Furthermore, the terms "installation," "setup," "connection," and "socketing" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral constructions; they can refer to mechanical or electrical connections; they can refer to direct connections or indirect connections via an intermediate medium, or internal connections between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

Claims

1. A workpiece bending mechanism for easy mold replacement, comprising a frame (1), characterized in that, The frame (1) is provided with a bending mechanism for stamping the sheet metal at the top. A base (4) is fixedly connected to one side of the frame (1). Two dovetail grooves (15) are opened at the top of the base (4). Dovetail guide rails (24) are slidably connected in both dovetail grooves (15). Multiple insertion holes (9) are opened on the adjacent side of the two dovetail guide rails (24). A bending die (3) is fixedly connected to the top of the two dovetail guide rails (24). The base (4) The base (4) has a downward-opening relief groove (12) and two symmetrically distributed sliding grooves (17) on its top. The sliding grooves (17) are slidably connected to the inserts (9) and the inserts (16) are inserted into them. Both sliding grooves (17) are provided with elastic components to reset the inserts (16). One side of each insert (16) is connected to a pull rope (13) by a rope buckle. One end of the pull rope (13) is provided with a stepping mechanism to pull the inserts (16) to move.

2. The workpiece bending mechanism for easy mold replacement according to claim 1, characterized in that, The bending mechanism includes a hydraulic cylinder (6), which is fixedly connected to the top of the frame (1). The telescopic part of the hydraulic cylinder (6) passes through the frame (1) and is fixedly connected to a movable frame (2). The top of the movable frame (2) is fixedly connected to a limiting rod (5) that passes through the frame (1), and the bottom of the movable frame (2) is fixedly connected to a bending pressure knife (7).

3. The workpiece bending mechanism for easy mold replacement according to claim 1, characterized in that, The elastic component consists of two first guide rods (19), both of which are fixedly connected in the slide groove (17) and pass through the insert (16). A first spring (18) is sleeved on the outside of each of the two first guide rods (19), and the two ends of the first spring (18) are fixed to the insert (16) and the slide groove (17) respectively.

4. The workpiece bending mechanism for easy mold replacement according to claim 1, characterized in that, The pedal mechanism includes multiple grooves (22), which are symmetrically arranged on both sides of the relief groove (12). The relief groove (12) is provided with a pedal (23) that moves along the groove (22). A second guide rod (20) passing through the pedal (23) is fixedly connected in each of the multiple grooves (22). A second spring (21) is sleeved on the outside of each of the multiple second guide rods (20), and the two ends of the second spring (21) are fixed to the pedal (23) and the groove (22) respectively. Two rotating wheels (14) are provided in the relief groove (12) to guide the pull rope (13).

5. The workpiece bending mechanism for easy mold replacement according to claim 1, characterized in that, The top of the base (4) is fixedly connected to a top plate (8), and the height of the top surface of the top plate (8) is equal to the height of the bottom surface of the bending mold (3).

6. The workpiece bending mechanism for easy mold replacement according to claim 5, characterized in that, Two symmetrically distributed support seats (11) are fixedly connected to one side of the base (4), and a safety light curtain (10) is fixedly connected to the top of the support seat (11).

7. The workpiece bending mechanism for easy mold replacement according to claim 4, characterized in that, The top of the pedal (23) is provided with uniformly distributed anti-slip rubber strips.

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