Numerical control bending rigidity strengthening forming die

By using high-strength bolts and triangular reinforcing ribs to connect the mold, and combining it with a servo motor-driven lead screw and limit system, the problems of insufficient rigidity and inflexible adjustment of traditional molds are solved, achieving high-precision and high-efficiency bending of metal sheets.

CN224181757UActive Publication Date: 2026-05-01NANTONG VECTOR TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANTONG VECTOR TECHNOLOGY CO LTD
Filing Date
2025-05-19
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Traditional bending dies have poor rigidity, making it difficult to meet the bending requirements of high-strength metal materials. Furthermore, their adjustment is not flexible enough, affecting production efficiency and quality.

Method used

The upper mold is connected by high-strength bolts and triangular reinforcing ribs. Combined with a servo motor-driven lead screw and limit system, the rigidity of the mold is enhanced and its position is adjusted. Precise positioning is achieved through the cooperation of positioning pins and scales.

Benefits of technology

It improves the overall rigidity of the mold, reduces deformation, improves bending accuracy and workpiece quality, and enhances adjustment flexibility and production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a numerical control bending rigidity strengthening forming die, which relates to the technical field of dies, and comprises a machine body, a numerical control screen arranged on one side of the machine body, an upper die strengthening assembly, a lower die adjusting assembly, an upper die assembly and a lower die assembly. The upper die base and the upper die body are fixedly connected through the high-strength bolts, and the reinforcing ribs distributed in the triangular shape are arranged, so that the overall rigidity of the die is effectively enhanced, deformation of the die in the bending process is reduced, and the bending precision and the quality of a workpiece are improved; according to the equipment, the position of the lower die body can be flexibly adjusted by pulling out the positioning pin to limit the lower die body, the bending requirements of workpieces of different specifications can be met, meanwhile, the lower die body can be rapidly and accurately fixed by matching with the positioning mode of the positioning pin and the positioning hole, operation is easy and rapid, and the production efficiency is greatly improved.
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Description

A CNC bending rigidity strengthening forming die Technical Field

[0001] This utility model relates to the field of mold technology, specifically a CNC bending rigidity strengthening forming mold. Background Technology

[0002] In the metal processing industry, CNC bending machines are widely used for bending and forming metal sheets. As the core component of CNC bending machines, the performance of bending dies directly affects the quality of bent workpieces and production efficiency.

[0003] Traditional bending dies have poor overall rigidity. When bending thick metal sheets or high-strength metal materials, the dies are subjected to great pressure and deform, resulting in quality problems such as deviations in bending angle and scratches on the workpiece surface. At the same time, traditional dies are not flexible enough in terms of adjustment and positioning, making it difficult to meet diverse bending needs and limiting the improvement of production efficiency. Summary of the Invention

[0004] This utility model provides a CNC bending rigidity strengthening forming mold, which has the advantages of good rigidity strengthening and good adjustability, so as to solve the problems of poor rigidity and insufficient adjustment of existing equipment.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a CNC bending rigidity strengthening forming mold, comprising a machine body and a CNC screen disposed on one side of the machine body, and further comprising an upper mold strengthening assembly, a lower mold adjusting assembly, an upper mold assembly, and a lower mold assembly, wherein:

[0006] An electrical control box is provided on one side of the machine body, and the electrical control box is electrically connected to the CNC screen;

[0007] The upper mold reinforcement component includes several reinforcing ribs. One end of each reinforcing rib is connected to a high-strength bolt, and the other end is connected to a fixing pin. The high-strength bolt passes through the upper mold body and is locked in place. The fixing pin is locked to the reinforcing rib by a nut. The reinforcing ribs are distributed in a triangular pattern.

[0008] The lower mold adjustment assembly includes a symmetrically arranged lower mold body. The lower mold body has positioning plates at both ends. The positioning plates are penetrated by positioning pins. An indicator plate is welded to one end of the positioning plate. One end of the indicator plate abuts against a scale. A number of equidistant positioning holes are provided on one side of the scale.

[0009] The upper mold assembly includes an upper mold base, which is penetrated and locked by a fixing pin. The positioning hole is located on the lower mold base and corresponds to the scale.

[0010] As a preferred technical solution of this utility model, the lower mold base is fixed to the machine body by bolts, and the top surface of the lower mold base is provided with a sliding groove, which fits into the lower mold body and slides in cooperation.

[0011] As a preferred embodiment of this utility model, longitudinally symmetrically arranged sliding rods are welded to the inner side of the sliding groove, and the sliding rods penetrate the lower mold body and slide together.

[0012] As a preferred technical solution of this utility model, the scale is fixed to the lower mold base by screws, and a limiting post is provided between the scales, with the top of the limiting post fitted with a limiting rod and slidingly engaged.

[0013] As a preferred technical solution of this utility model, the limiting rod is welded to the upper mold base, and a spiral sleeve is provided on one side of the upper mold base. The spiral sleeve is fitted with the lead screw and rotates in cooperation with it. The lead screw is connected to a servo motor.

[0014] In a preferred embodiment of this utility model, the servo motor is electrically connected to the control box, the two ends of the upper mold base are fitted with limiting grooves and are slidably engaged, the limiting grooves are welded to the inner wall of the machine body, and the servo motor is fixed to one side of the limiting grooves by screws.

[0015] Compared with the prior art, this utility model provides a CNC bending rigidity-strengthened forming mold with the following beneficial effects: This utility model effectively enhances the overall rigidity of the mold by using high-strength bolts to fix the upper mold base and the upper mold body together, and by setting reinforcing ribs distributed in a triangular pattern, reducing mold deformation during bending, and improving bending accuracy and workpiece quality. The device allows for flexible adjustment of the lower mold body's position by pulling out the positioning pin to limit its movement, adapting to the bending requirements of workpieces of different specifications. Simultaneously, the positioning method using positioning pins and positioning holes allows for quick and accurate fixing of the lower mold body, making operation simple and fast, and greatly improving production efficiency. Attached Figure Description

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

[0017] Figure 2 is a structural diagram of the upper mold reinforcement component of this utility model;

[0018] Figure 3 is a schematic diagram of the lower mold adjustment assembly of this utility model;

[0019] Figure 4 is a structural diagram of the upper mold assembly of this utility model;

[0020] Figure 5 is a schematic diagram of the lower mold assembly structure of this utility model.

[0021] In the diagram: 1. Machine body; 2. CNC screen; 3. Upper mold reinforcement assembly; 4. Lower mold adjustment assembly; 5. Upper mold assembly; 6. Lower mold assembly; 11. Electrical control box; 31. Reinforcing rib; 32. High-strength bolt; 33. Fixing pin; 34. Upper mold body; 41. Lower mold body; 42. Positioning plate; 43. Positioning pin; 44. Scale; 45. Positioning hole; 46. Indicator plate; 51. Upper mold base; 52. Limiting rod; 53. Spiral sleeve; 54. Lead screw; 55. Servo motor; 56. Limiting groove; 61. Lower mold base; 62. Slide groove; 63. Slide rod; 64. Limiting post. Detailed Implementation

[0022] 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 scope of protection of the present utility model. Embodiment 1

[0023] Please refer to Figures 1-5. This utility model discloses a CNC bending rigidity strengthening forming mold, including a machine body 1 and a CNC screen 2 disposed on one side of the machine body 1, and also includes an upper mold strengthening component 3, a lower mold adjusting component 4, an upper mold component 5, and a lower mold component 6, wherein:

[0024] An electrical control box 11 is provided on one side of the machine body 1, and the electrical control box 11 is electrically connected to the CNC screen 2;

[0025] Please refer to Figure 3. The upper mold reinforcement component 3 includes several reinforcing ribs 31. One end of the reinforcing rib 31 is connected to a high-strength bolt 32, and the other end is connected to a fixing pin 33. The high-strength bolt 32 passes through the upper mold body 34 and is locked in place. The fixing pin 33 is locked to the reinforcing rib 31 by a nut. The reinforcing ribs 31 are distributed in a triangular shape. Specifically, the triangular reinforcing ribs 31 have good stability and rigidity, which can effectively enhance the overall rigidity of the upper mold, reduce the deformation of the mold during the bending process, improve the bending accuracy, and ensure the quality of the workpiece.

[0026] Please refer to Figure 4. The lower mold adjustment assembly 4 includes a symmetrically arranged lower mold body 41. The lower mold body 41 has positioning plates 42 at both ends. The positioning plates 42 are penetrated by positioning pins 43. An indicator plate 46 is welded to one end of the positioning plate 42. One end of the indicator plate 46 abuts against a scale 44. A number of equidistant positioning holes 45 are provided on one side of the scale 44.

[0027] The upper mold assembly 5 includes an upper mold base 51, which is penetrated and locked by a fixing pin 33. A positioning hole 45 is provided on the lower mold base 61, and the positioning hole 45 is correspondingly set with a scale 44.

[0028] In this embodiment, the distance between the lower mold bodies 41 is adjusted by sliding them in the groove 62, thereby controlling the bending angle to meet the bending requirements. The lower mold body is precisely positioned by aligning the indicator plate 46 with the scale 44. Then, the positioning pin 43 is inserted through the positioning plate 42 into the positioning hole 45 and tightly fitted to position and fix the lower mold body. This convenient and quick adjustment greatly improves the adaptability to diverse bending needs. Example 2

[0029] Based on the above embodiment 1, please refer to Figures 2 and 5. The lower mold base 61 is fixed to the machine body 1 by bolts. The top surface of the lower mold base 61 is provided with a sliding groove 62, which fits into the lower mold body 41 and slides.

[0030] The inner side of the slide groove 62 is welded with longitudinally symmetrical slide rods 63. The slide rods 63 pass through the lower mold body 41 and slide together. Specifically, the slide rods 63 guide and limit the lower mold body 41 to ensure that the lower mold body 41 is always placed horizontally.

[0031] The scale 44 is fixed to the lower mold base 61 by screws. There are limit posts 64 between the scales 44. The top of the limit post 64 is fitted with the limit rod 52 and slides. Specifically, the limit post 64 and the limit rod 52 ensure the vertical movement accuracy of the upper mold base 61, and at the same time enhance the lateral pressure resistance of the upper mold base 61 when bending.

[0032] The limiting rod 52 is welded to the upper mold base 51. A spiral sleeve 53 is provided on one side of the upper mold base 51. The spiral sleeve 53 is fitted with the lead screw 54 and rotates in coordination. The lead screw 54 is connected to the servo motor 55.

[0033] The servo motor 55 is electrically connected to the control box 11. The upper mold base 51 is fitted with the limiting groove 56 at both ends and slides. The limiting groove 56 is welded to the inner wall of the machine body 1. The servo motor 55 is fixed to one side of the limiting groove 56 by screws.

[0034] In this embodiment, the CNC screen 2 controls the servo motor 55 to work through the electrical control box 11. The servo motor 55 drives the lead screw 54 to rotate. The lead screw 54 interacts with the spiral sleeve 53. Through the spiral force, the upper mold base 51 slides downward under the limit of the limiting groove 56. The upper mold base 51 drives the upper mold body 41 to press down and cooperate with the lower mold body 41 to bend the metal plate.

[0035] The working principle and usage process of this utility model are as follows: First, the upper mold body 34 is fixedly installed below the upper mold base 51 by high-strength bolts 32, and reinforcing ribs 31 distributed in a triangular pattern are installed between the two to ensure the rigidity of the upper mold. Then, the sliding rod 63 that passes through the lower mold body 41 is welded to the inner side of the lower mold base 61. According to the specifications of the workpiece to be processed, the lower mold body 41 is pushed to slide in the sliding groove 62 to adjust the distance between the lower mold bodies 41, thereby controlling the bending angle to meet the bending requirements. The lower mold body is accurately positioned by observing and aligning the indicator plate 46 with the scale 44. Then, the positioning pin 43 is inserted through the positioning plate 42 into the positioning hole 45 and tightly fitted to position and fix the lower mold body.

[0036] The metal sheet to be bent is placed above the lower die 41. The bending parameters are input through the CNC screen 2 and the bending machine is started. The CNC screen 2 controls the servo motor 55 through the electrical control box 11. The servo motor 55 drives the lead screw 54 to rotate. The lead screw 54 interacts with the spiral sleeve 53, thereby generating a relative displacement that causes the upper die base 51 to slide downward under the limit of the limit groove 56. The upper die base 51 is guided by the limit rod 52 in conjunction with the limit post on the lower die base 61 to ensure the bending accuracy.

[0037] Finally, the upper mold base 51 drives the upper mold body 41 to press down and cooperate with the lower mold body 41 to bend the metal sheet. After bending is completed, when it is necessary to adjust the bending distance of the lower mold body 41, the positioning pin 43 can be pulled out for adjustment, which is convenient and quick and greatly improves the bending flexibility.

Claims

1. A CNC bending rigidity strengthening forming mold, comprising a machine body (1) and a CNC screen (2) disposed on one side of the machine body (1), characterized in that, It also includes an upper mold reinforcement assembly (3), a lower mold adjustment assembly (4), an upper mold assembly (5), and a lower mold assembly (6), wherein: an electrical control box (11) is provided on one side of the machine body (1), and the electrical control box (11) is electrically connected to the CNC screen (2); the upper mold reinforcement assembly (3) includes several reinforcing ribs (31), one end of the reinforcing rib (31) is connected to a high-strength bolt (32), and the other end is connected to a fixing pin (33), the high-strength bolt (32) penetrates the upper mold body (34) and is locked in place, and the fixing pin... (33) The nut is locked to the reinforcing rib (31), which is triangularly distributed; the lower mold adjustment assembly (4) includes a symmetrically arranged lower mold body (41), and the lower mold body (41) is provided with positioning plates (42) at both ends. The positioning plates (42) are penetrated by positioning pins (43). An indicator plate (46) is welded to one end of the positioning plate (42), and one end of the indicator plate (46) abuts against the scale (44). The scale (44) is provided with several equidistant positioning holes (45) on one side.

2. The CNC bending rigidity strengthening forming mold according to claim 1, characterized in that: The upper mold assembly (5) includes an upper mold base (51), which is penetrated and locked by a fixing pin (33). The positioning hole (45) is provided on the lower mold base (61), and the positioning hole (45) is correspondingly set with the scale (44).

3. The CNC bending rigidity strengthening forming die according to claim 2, characterized in that: The lower mold base (61) is fixed to the machine body (1) by bolts. The top surface of the lower mold base (61) is provided with a sliding groove (62), which fits into the lower mold body (41) and slides.

4. The CNC bending rigidity strengthening forming die according to claim 3, characterized in that: The inner side of the groove (62) is welded with longitudinally symmetrically arranged slide rods (63), which penetrate the lower mold body (41) and slide in fit.

5. A CNC bending rigidity strengthening forming die according to claim 4, characterized in that: The scale (44) is fixed to the lower mold base (61) by screws. A limiting post (64) is provided between the scales (44). The top of the limiting post (64) is fitted with a limiting rod (52) and slides.

6. A CNC bending rigidity strengthening forming die according to claim 5, characterized in that: The limiting rod (52) is welded to the upper mold base (51). The upper mold base (51) is provided with a spiral sleeve (53) on one side. The spiral sleeve (53) is fitted with the lead screw (54) and rotates in cooperation. The lead screw (54) is connected to the servo motor (55).

7. A CNC bending rigidity strengthening forming die according to claim 6, characterized in that: The servo motor (55) is electrically connected to the control box (11). The upper mold base (51) is fitted with the limiting groove (56) at both ends and slides. The limiting groove (56) is welded to the inner wall of the machine body (1). The servo motor (55) is fixed to one side of the limiting groove (56) by screws.