Quick clamping device for bending die

Abstract

The utility model belongs to metal processing technical field especially is a kind of quick clamping device of bending die, including bottom plate, the top of bottom plate is separately provided with controller and two groups of electric push rod, and the number of each group electric push rod is four, and the upper surface of bottom plate is fixedly connected with groove frame, the inside sliding connection of groove frame has sliding limit frame, the top of sliding limit frame is provided with die, and the two sides of sliding limit frame are evenly provided with two fixed slots, and the telescopic end of each group electric push rod is fixedly connected with clamping plate, and the outer surface of each clamping plate is in contact with the inner wall of fixed slot, and the telescopic driving force of electric push rod is used to quickly realize the clamping and loosening of sliding limit frame by setting four groups of electric push rod and the clamping structure of fixed slot, without manual screwing, the installation and disassembly process of die are greatly simplified, simultaneously, the sliding cooperation design of sliding limit frame and groove frame can directly bear die and realize quick positioning and taking.

Description

Technical Field

[0001] This utility model belongs to the field of metal processing technology, specifically relating to a quick clamping device for bending dies. Background Technology

[0002] Bending dies are the core tools for bending sheet metal. They can precisely press flat blanks into workpieces with specific angles or irregular shapes. They consist of a punch and a die, which work together to apply pressure to the sheet metal under the driving force of the bending machine, causing it to undergo plastic deformation and form a finished product that fits the contour of the die cavity. Dies are mostly made of high-strength alloy tool steel and have high hardness and wear resistance after heat treatment. They are suitable for processing a variety of sheet metal and are key equipment to ensure bending accuracy and efficiency.

[0003] However, bending dies need to be installed on bending machines during use, and their fixation relies on multiple screws. This traditional method is very cumbersome when changing and installing dies, which is not only time-consuming and labor-intensive, but also cannot achieve quick clamping and fixation, which seriously affects the convenience of operation. Each time the die is changed, the screws need to be repeatedly installed and removed, which not only prolongs the downtime, but also reduces the overall efficiency of bending processing, bringing many inconveniences to actual production.

[0004] To address the aforementioned problems, this application proposes a quick clamping device for bending dies. Utility Model Content

[0005] To address the aforementioned problems in the existing technology, this utility model provides a quick clamping device for bending dies, which improves the ease of installation and disassembly of bending dies.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a quick clamping device for bending dies, comprising a base plate, a controller and two sets of electric push rods respectively disposed on the top of the base plate, each set of electric push rods having four rods, a slot frame fixedly connected to the upper surface of the base plate, a sliding limit frame slidably connected inside the slot frame, a die disposed above the sliding limit frame, two fixing slots being formed on both sides of the sliding limit frame, a clamping plate fixedly connected to the telescopic end of each set of electric push rods, and the outer surface of each clamping plate contacting the inner wall of the fixing slot.

[0007] As a preferred embodiment of this utility model, two sets of fixing pins are provided above the base plate, and the bottom end of each fixing pin penetrates the base plate and extends to the bottom of the base plate.

[0008] As a preferred embodiment of this utility model, a connecting plate is fixedly connected to the bottom surface of the controller, and the bottom surface of the connecting plate is fixedly connected to the upper surface of the base plate.

[0009] As a preferred embodiment of this utility model, the two sides of the slot frame are fixedly connected with reinforcing plates, and the bottom surface of each reinforcing plate is fixedly connected to the upper surface of the base plate.

[0010] As a preferred technical solution of this utility model, each set of electric push rods has a fixed plate fixedly connected to one end of each group that is far apart from the other, and the bottom surface of the fixed plate is fixedly connected to the upper surface of the base plate.

[0011] As a preferred technical solution of this utility model, a reinforcing ring is fixedly connected to the outer surface of the telescopic end of each electric push rod, and the side of each group of reinforcing rings that is close to each other is fixedly connected to the side of each group of clamping plates that is far from each other.

[0012] As a preferred embodiment of this utility model, two connecting rods are fixedly connected to both sides of the sliding limit frame, and handles are fixedly connected to the ends of the two sets of connecting rods that are far apart from each other.

[0013] As a preferred embodiment of this utility model, the bottom surface of the mold is fixedly connected to a fixing frame, and the bottom surface of the fixing frame is fixedly connected to the upper surface of the sliding limit frame.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: By setting up a snap-fit ​​structure with four sets of electric push rods in conjunction with the clamping plate and the fixing groove, the sliding limit frame can be quickly clamped and released using the telescopic driving force of the electric push rods, eliminating the need for manual screw installation and removal, thus greatly simplifying the mold installation and disassembly process. At the same time, the sliding fit design between the sliding limit frame and the groove frame can directly support the mold for quick positioning and placement, effectively shortening the downtime for mold replacement and improving the overall efficiency of bending processing. In addition, the integrated controller facilitates precise control of the electric push rod's movement range, ensuring moderate clamping force, preventing mold loosening and overpressure damage, further enhancing the convenience and safety of operation. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

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

[0017] Figure 2 This is a schematic diagram of the structure of the bottom plate in this utility model;

[0018] Figure 3 This is a schematic diagram of the sliding limit frame in this utility model;

[0019] Figure 4This is a schematic diagram of the mold structure in this utility model;

[0020] In the diagram: 1. Base plate; 2. Slot frame; 3. Controller; 4. Connecting plate; 5. Electric push rod; 6. Reinforcing plate; 7. Fixing plate; 8. Fixing pin; 9. Sliding limit frame; 10. Connecting rod; 11. Handle; 12. Reinforcing ring; 13. Clamping plate; 14. Fixing slot; 15. Mold; 16. Fixing frame. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example

[0023] Please see Figure 1-4 The present invention provides the following technical solution: a quick clamping device for bending mold, including a base plate 1, a controller 3 and two sets of electric push rods 5 respectively arranged on the top of the base plate 1, each set of electric push rods 5 having four rods, a slot frame 2 fixedly connected to the upper surface of the base plate 1, a sliding limit frame 9 slidably connected inside the slot frame 2, a mold 15 arranged above the sliding limit frame 9, two fixing slots 14 opened on both sides of the sliding limit frame 9, a clamping plate 13 fixedly connected to the telescopic end of each set of electric push rods 5, and the outer surface of each clamping plate 13 contacting the inner wall of the fixing slot 14;

[0024] In this embodiment, the controller 3 uses a programmable logic controller (PLC), which is a digital computing and operating electronic system designed specifically for industrial environments. It uses a programmable memory to store instructions for performing logical operations, sequential control, timing, counting, and arithmetic operations, and controls various types of machinery or production processes through digital or analog inputs / outputs. Meanwhile, the electric push rod 5 is an electric actuator that converts the rotational motion of an electric motor into linear reciprocating motion. It is mainly composed of a drive motor, reduction gear, screw, nut, push rod, guide sleeve, and other components.

[0025] Specifically, two sets of fixing pins 8 are provided on the top of the base plate 1. The bottom end of each fixing pin 8 passes through the base plate 1 and extends to the bottom of the base plate 1. In this embodiment, the fixing pins 8 can first fix the base plate 1 to the bending machine and make the base plate 1 firm.

[0026] Specifically, a connecting plate 4 is fixedly connected to the bottom surface of the controller 3. The bottom surface of the connecting plate 4 is fixedly connected to the upper surface of the base plate 1. In this embodiment, the controller 3 is mounted at a suitable height above the base plate 1 by means of the connecting plate 4. This avoids the problem of poor heat dissipation caused by the controller 3 directly contacting the base plate 1, and also makes the operation panel closer to the operator's line of sight, which is convenient for real-time monitoring and input of operation control commands.

[0027] Specifically, both sides of the slot frame 2 are fixedly connected with reinforcing plates 6, and the bottom surface of each reinforcing plate 6 is fixedly connected to the upper surface of the base plate 1. In this embodiment, the reinforcing plates 6 form a support structure, which enhances the bending strength of the connection between the slot frame 2 and the base plate 1. This can effectively offset the lateral pressure generated by the sliding limit frame 9 on the slot frame 2 when carrying the mold 15, and prevent the slot frame 2 from deforming after long-term use.

[0028] Specifically, each set of electric push rods 5 has a fixed plate 7 fixedly connected to one end of each other. The bottom surface of the fixed plate 7 is fixedly connected to the upper surface of the base plate 1. In this embodiment, the electric push rods 5 can be fixed to the base plate 1 through the fixed plate 7, so that the electric push rods 5 can extend and retract stably.

[0029] Specifically, a reinforcing ring 12 is fixedly connected to the outer surface of the telescopic end of each electric push rod 5. The side of each set of reinforcing rings 12 that is close to each other is fixedly connected to the side of each set of clamping plates 13 that is far from each other. In this embodiment, the reinforcing rings 12 strengthen the connection between the telescopic end of the electric push rod 5 and the clamping plate 13, preventing the connection between the two from breaking due to frequent force or instantaneous impact, and ensuring that the clamping plate 13 can stably transmit the driving force of the electric push rod 5.

[0030] Specifically, two connecting rods 10 are fixedly connected to both sides of the sliding limit frame 9. Each of the two sets of connecting rods 10 has a handle 11 fixedly connected to one end that is far apart from the other. In this embodiment, the handle 11 connected by the connecting rods 10 provides a convenient point of force application for the operator, making it easy to push and pull the sliding limit frame 9 along the slot frame 2 when the mold 15 is changed, which can significantly reduce the labor intensity of manual handling.

[0031] Specifically, a fixing frame 16 is fixedly connected to the bottom surface of the mold 15. The bottom surface of the fixing frame 16 is fixedly connected to the upper surface of the sliding limit frame 9. In this embodiment, the fixing frame 16 can fix the mold 15 to the sliding limit frame 9 and make the mold 15 stable during use.

[0032] The working principle and usage process of this utility model are as follows: First, the entire device is fixed to the worktable of the bending machine using the fixing pins 8 on the base plate 1, ensuring a firm connection between the base plate 1 and the bending machine, providing a stable foundation for subsequent operations. Then, the mold 15 is pre-installed on the sliding limit frame 9 via the fixing bracket 16, completing the integrated assembly of the mold 15 and the sliding limit frame 9. At this time, the operator can push the sliding limit frame 9 along the slot frame 2 using the handles 11 on both sides of the sliding limit frame 9, moving it to the processing station. This aligns the fixing slots 14 on both sides of the sliding limit frame 9 with the clamping plates 13 at the telescopic ends of the electric push rods 5. Next, the controller 3 issues a clamping command, and the controller 3 controls the two sets of electric push rods 5 to extend synchronously according to a preset program. Their telescopic ends, through the reinforcing rings 12, synchronously drive the clamping plates 13 towards the sliding limit frame 9. Until the clamping plate 13 is fully engaged in the fixing groove 14, the sliding limit frame 9 is tightly fixed by mechanical clamping. At this time, the mold 15 is stably in the working position with the sliding limit frame 9, and can be used with the bending machine for sheet metal bending. When it is necessary to replace the mold 15, the controller 3 issues a release command, the electric push rod 5 retracts, the clamping plate 13 is disengaged from the fixing groove 14, and the constraint on the sliding limit frame 9 is released. The operator then pulls the sliding limit frame 9 out along the groove frame 2 again by using the handle 11. After replacing the sliding limit frame 9 with the pre-installed new mold 15, the above transfer and clamping steps are repeated to complete the quick mold change. The entire process replaces the traditional screw fastening with the automatic extension and retraction of the electric push rod 5. With the help of the controller 3, the clamping force is precisely controlled, which not only ensures the stability of the mold 15, but also greatly shortens the installation and disassembly time and significantly improves the operating efficiency.

[0033] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A quick clamping device for bending dies, characterized in that: The device includes a base plate (1), on which a controller (3) and two sets of electric push rods (5) are respectively arranged. Each set of electric push rods (5) has four push rods. A slot frame (2) is fixedly connected to the upper surface of the base plate (1). A sliding limit frame (9) is slidably connected inside the slot frame (2). A mold (15) is arranged above the sliding limit frame (9). Two fixed slots (14) are opened on both sides of the sliding limit frame (9). A clamping plate (13) is fixedly connected to the telescopic end of each set of electric push rods (5). The outer surface of each clamping plate (13) is in contact with the inner wall of the fixed slot (14).

2. The quick clamping device for bending dies according to claim 1, characterized in that: Two sets of fixing pins (8) are provided above the base plate (1), and the bottom end of each fixing pin (8) penetrates the base plate (1) and extends to the bottom of the base plate (1).

3. The quick clamping device for bending dies according to claim 1, characterized in that: The bottom surface of the controller (3) is fixedly connected to a connecting plate (4), and the bottom surface of the connecting plate (4) is fixedly connected to the upper surface of the base plate (1).

4. The quick clamping device for bending dies according to claim 1, characterized in that: The two sides of the slot frame (2) are fixedly connected with reinforcing plates (6), and the bottom surface of each reinforcing plate (6) is fixedly connected to the upper surface of the base plate (1).

5. The quick clamping device for bending dies according to claim 1, characterized in that: Each set of electric push rods (5) has a fixed plate (7) fixedly connected to one end of each group that is far apart from the other. The bottom surface of the fixed plate (7) is fixedly connected to the upper surface of the base plate (1).

6. The quick clamping device for bending dies according to claim 1, characterized in that: Each of the electric push rods (5) has a reinforcing ring (12) fixedly connected to the outer surface of its telescopic end. The side of each set of reinforcing rings (12) that is close to each other is fixedly connected to the side of each set of clamping plates (13) that is far away from each other.

7. The quick clamping device for bending dies according to claim 1, characterized in that: Two connecting rods (10) are fixedly connected to both sides of the sliding limit frame (9), and handles (11) are fixedly connected to the ends of the two sets of connecting rods (10) that are far apart from each other.

8. The quick clamping device for bending dies according to claim 1, characterized in that: The bottom surface of the mold (15) is fixedly connected to a fixing frame (16), and the bottom surface of the fixing frame (16) is fixedly connected to the upper surface of the sliding limit frame (9).

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