A shared mold frame structure for bending dies

Abstract

This utility model discloses a shared mold frame structure for bending dies, relating to the field of mold technology. It aims to solve the problems of high cost and low replacement efficiency caused by the traditional one-mold-one-frame design of bending dies. The structure includes a shared upper mold frame and a shared lower mold frame. The shared upper mold frame has countersunk holes for upper mold locking screws, a locking pin hole, and a guide rod sleeve. The shared lower mold frame has countersunk holes for lower mold locking screws and a guide rod adapted to the guide rod sleeve. A spring is installed inside the guide rod sleeve. The upper and lower mold forming blocks are detachably installed through corresponding countersunk holes, positioned by the locking pin hole, guided by the guide rod and guide rod sleeve, and assisted by the spring for reset. This structure eliminates the need to replace the entire mold frame, reducing costs and improving production efficiency and flexibility.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, and in particular to a shared mold frame structure for bending molds. Background Technology

[0002] Bending dies are commonly used equipment in metal sheet processing. The die frame, as the core support structure of the die, directly affects the processing accuracy and production efficiency. At present, traditional bending dies mostly adopt a customized design of one die and one frame, that is, for different products with different bending size and shape requirements, the corresponding upper die frame and lower die frame need to be designed and manufactured separately.

[0003] This design has several drawbacks. First, when processing products of various specifications, multiple complete mold sets need to be stored, which significantly increases the cost of mold manufacturing and occupies a large amount of storage space. Second, when changing products for processing, the entire mold set needs to be disassembled and replaced, which is a complex process with a long replacement time, seriously affecting production continuity and reducing processing efficiency. Utility Model Content

[0004] To address the technical problems existing in the background art, this utility model proposes a shared mold frame structure for bending dies.

[0005] This utility model proposes a shared mold frame structure for bending dies, including an upper mold shared mold frame and a lower mold shared mold frame. The upper mold shared mold frame has a plurality of upper mold locking screw countersunk holes and a locking pin hole. The lower mold shared mold frame has a plurality of lower mold locking screw countersunk holes. The upper mold forming component is detachably locked to the upper mold shared mold frame through the upper mold locking screw countersunk holes and achieves positioning and engagement with the upper mold shared mold frame through the locking pin holes. The lower mold forming component is detachably locked to the lower mold shared mold frame through the lower mold locking screw countersunk holes.

[0006] Furthermore, the upper mold common mold frame is also provided with a guide rod sleeve, which is fixedly embedded in the preset installation position of the upper mold common mold frame, and the axis of the guide rod sleeve is perpendicular to the working surface of the upper mold common mold frame.

[0007] Furthermore, the lower mold common mold frame is provided with a guide rod adapted to the guide rod sleeve. The guide rod is vertically fixed to the upper surface of the lower mold common mold frame, and the guide rod can slide through the guide rod sleeve to realize the guiding and positioning of the upper mold common mold frame and the lower mold common mold frame during the bending process.

[0008] Furthermore, the upper mold common mold frame is also provided with a spring, which is located inside the guide rod sleeve, and the two ends of the spring abut against the guide rod sleeve and the guide rod.

[0009] Furthermore, at least two countersunk holes for the upper mold locking screws are provided, and they are symmetrically distributed along the width direction of the common mold frame of the upper mold.

[0010] Furthermore, multiple engagement pin holes are spaced apart along the length of the common mold frame of the upper mold, and at least two engagement pin holes can be selected to insert positioning pins according to the size specifications of the upper mold forming parts.

[0011] The beneficial effects of this utility model are as follows: Through the modular design of the upper and lower mold bases sharing a common mold frame, combined with the detachable upper and lower mold forming block installation structure, and the guide and reset assembly consisting of guide rod sleeves, guide rods, and springs, the problems of high cost, low replacement efficiency, and inconvenient maintenance caused by the customized design of traditional bending dies with one mold and one frame are effectively solved. Not only is it possible to eliminate the need to manufacture a complete set of mold frames for different products, significantly reducing mold manufacturing costs and storage space occupation, but it is also possible to achieve bending processing of different products by only replacing the upper and lower mold forming blocks, shortening mold frame replacement time and improving production continuity. At the same time, the guide and reset assembly ensures processing accuracy and operational stability, meeting the needs of modern production for low cost, high efficiency, and high flexibility. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the shared mold frame for the upper mold in this utility model; Figure 3 This is a schematic diagram of the shared mold frame for the lower mold in this utility model.

[0013] In the diagram: 1. Upper mold shared mold frame; 11. Upper mold locking screw countersunk hole; 12. Connecting pin hole; 13. Guide rod sleeve; 14. Spring; 2. Lower mold shared mold frame; 21. Lower mold locking screw countersunk hole; 22. Guide rod. Detailed Implementation

[0014] Reference Figure 1-3 This utility model proposes a shared mold frame structure for bending dies. Through modular design, it achieves shared compatibility between the upper and lower mold frames, reducing the mold replacement cost and operation time during bending processing of different products. The specific implementation method is as follows: The shared mold frame structure includes an upper mold shared mold frame 1 and a lower mold shared mold frame 2. Symmetrical countersunk holes 11 for upper mold locking screws are provided along the width direction of the upper mold shared mold frame 1. These countersunk holes are used to detachably lock the upper mold forming block to the lower surface of the upper mold shared mold frame 1 using screws. The symmetrical distribution design ensures balanced force distribution after the upper mold forming block is locked, preventing bending accuracy from being affected by force offset during processing. Pin holes 12 are provided at equal intervals along the length direction of the upper mold shared mold frame 1. Positioning pins can be inserted into the pin holes 12, precisely matching the positioning holes of the upper mold forming block, further defining the installation position of the upper mold forming block. Simultaneously, guide rod sleeves 13 are fixedly embedded near the four corners of the upper mold shared mold frame 1, with their axes perpendicular to the working surface (lower surface) of the upper mold shared mold frame 1, providing a guide channel for the relative movement of the upper and lower mold frames. The lower mold common mold frame 2 is set in correspondence with the upper mold common mold frame 1. On the upper surface of the lower mold common mold frame 2, countersunk holes 21 for lower mold locking screws are opened in a matrix. The lower mold forming block (which is compatible with the upper mold forming block) is locked and fixed by screws passing through the countersunk holes. The matrix arrangement design allows for flexible selection of locking hole positions according to the size of the lower mold forming block, improving adaptability. At the position of the lower mold common mold frame 2 corresponding to the guide rod sleeve 13 of the upper mold common mold frame 1, a guide rod 22 is vertically fixed. The diameter of the guide rod 22 is slightly smaller than the inner diameter of the guide rod sleeve 13. It can slide through the guide rod sleeve 13. Through the cooperation of the guide rod 22 and the guide rod sleeve 13, the upper mold common mold frame 1 and the lower mold common mold frame 2 are accurately guided during the bending process, avoiding deviation or shaking. In addition, a spring 14 is provided inside the guide sleeve 13 of the upper mold common mold frame 1. The spring 14 is a cylindrical helical compression spring, and its two ends abut against the top of the inner wall of the guide sleeve 13 and the top of the guide rod 22, respectively. During the bending process, the upper mold common mold frame 1 moves downward with the external stamping equipment, the guide rod 22 slides along the inside of the guide sleeve 13, and the spring 14 is further compressed, which can buffer the impact force between the upper mold common mold frame 1 and the lower mold common mold frame 2. When the processing is completed, the external stamping equipment resets upward, the spring 14 releases elastic potential energy, and pushes the upper mold common mold frame 1 to reset upward synchronously, which helps to complete the entire processing cycle and improves the operating efficiency.

[0015] In practical use, the appropriate upper and lower die forming blocks can be selected according to the bending requirements of the product to be processed: the upper die forming block is locked to the upper die common mold frame 1 through the countersunk hole 11 of the upper die locking screw, and the positioning pin is inserted through the engagement pin hole 12 to achieve precise positioning; the lower die forming block is locked to the lower die common mold frame 2 through the countersunk hole 21 of the lower die locking screw. After the assembly is completed, the external stamping equipment can be started for bending processing. If it is necessary to change the processed product, only the upper and lower die forming blocks need to be disassembled and replaced, without replacing the entire mold frame, which effectively reduces the mold replacement cost and time and improves production flexibility.

[0016] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A shared mold frame structure for bending dies, characterized in that, The system includes an upper mold common mold frame (1) and a lower mold common mold frame (2). The upper mold common mold frame (1) has several upper mold locking screw countersunk holes (11) and engagement pin holes (12). The lower mold common mold frame (2) has several lower mold locking screw countersunk holes (21). The upper mold forming component is detachably locked to the upper mold common mold frame (1) through the upper mold locking screw countersunk holes (11) and achieves positioning and cooperation with the upper mold common mold frame (1) through the engagement pin holes (12). The lower mold forming component is detachably locked to the lower mold common mold frame (2) through the lower mold locking screw countersunk holes (21).

2. The shared mold frame structure for bending dies according to claim 1, characterized in that, The upper mold common mold frame (1) is also provided with a guide rod sleeve (13), which is fixedly embedded in the preset installation position of the upper mold common mold frame (1), and the axis of the guide rod sleeve (13) is perpendicular to the working surface of the upper mold common mold frame (1).

3. The shared mold frame structure for bending dies according to claim 2, characterized in that, The lower mold common mold frame (2) is provided with a guide rod (22) that is adapted to the guide rod sleeve (13). The guide rod (22) is vertically fixed to the upper surface of the lower mold common mold frame (2), and the guide rod (22) can slide through the guide rod sleeve (13) to realize the guiding and positioning of the upper mold common mold frame (1) and the lower mold common mold frame (2) during the bending process.

4. The shared mold frame structure for bending dies according to claim 3, characterized in that, The upper mold common mold frame (1) is also provided with a spring (14), which is located inside the guide rod sleeve (13), and the two ends of the spring (14) are respectively abutted against the guide rod sleeve (13) and the guide rod (22).

5. The shared mold frame structure for bending dies according to claim 1, characterized in that, At least two countersunk holes (11) for the upper mold locking screws are provided, and they are symmetrically distributed along the width direction of the upper mold common mold frame (1).

6. The shared mold frame structure for bending dies according to claim 1, characterized in that, Multiple pin holes (12) are spaced apart along the length of the upper mold common mold frame (1). At least two pin holes (12) can be selected to insert positioning pins according to the size specifications of the upper mold forming parts.

Images