Grid hydraulic forming die

By introducing a limiting frame and limiting block into the grid hydroforming mold, and combining it with an electric telescopic rod to drive the movable frame, stable positioning and convenient removal of the mold are achieved, solving the problem of difficult mold removal and improving processing efficiency and accuracy.

CN224238063UActive Publication Date: 2026-05-15JIN HONGXIN (DONGGUAN) AVIATION INTELLIGENT EQUIPMENT TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIN HONGXIN (DONGGUAN) AVIATION INTELLIGENT EQUIPMENT TECHNOLOGY CO LTD
Filing Date
2025-05-27
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

Existing grid hydroforming molds are difficult to remove after hydroforming, resulting in reduced processing efficiency.

Method used

A mold structure including a base, an electric telescopic rod, a movable frame, a support plate, a cylindrical block, and a top block was designed. The part to be stamped is fixed by the cooperation of the limiting frame and the limiting block, and the movable frame is moved by the electric telescopic rod to achieve stable positioning and convenient removal of the stamped part.

Benefits of technology

It improves the stability and processing efficiency of the stamping process, facilitates the positioning and collection of stamped parts, and enhances processing accuracy and efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a grid hydraulic forming die which comprises a base, a fixing lug is installed at one end of the top of the base, an electric telescopic rod is installed outside the fixing lug, according to the grid hydraulic forming die, a limiting frame is arranged so that a part to be stamped can be conveniently fixed to a lower die, displacement in the stamping process is avoided, and the stamping quality is improved. Two limiting blocks are arranged to achieve a positioning effect on the limiting frame, two adjusting bolts are rotated after the limiting frame fixes the to-be-stamped part, and the adjusting bolts rotate to drive an external limiting plate to descend, so that the limiting frame is fixed between the two limiting blocks, and the to-be-stamped part is stamped more stably; the electric telescopic rod retracts to drive the movable frame to move, when the movable frame moves, the two cylindrical blocks synchronously slide in the sliding groove to drive the supporting plate and the multiple sets of ejecting blocks to ascend, the multiple sets of ejecting blocks ascend to penetrate through the sliding groove and the stamping groove to eject the stamping parts out, the stamping parts are conveniently collected, and operation is convenient.
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Description

Technical Field

[0001] This utility model relates to the field of mold stamping technology, and in particular to a grid hydraulic forming mold. Background Technology

[0002] The hydroforming mold for grating is a specialized mold used in the manufacture of grating products. It uses a hydraulic system to provide power to achieve precise grating forming. This mold is widely used in many fields such as automobiles, construction, and environmental protection.

[0003] Chinese patent website discloses a grid hydraulic forming mold, publication number: CN220144541U, comprising: a mold body with a stamping groove, the mold body being used to support the part to be stamped; a cover plate, which can cooperate with the mold body to fix the part to be stamped, and the cover plate is provided with a stamping hole that cooperates with the stamping groove; and a core block, which can slide within the stamping hole and stamp the part to be stamped. In this utility model, the cover plate cooperating with the mold body can position the part to be stamped, preventing it from being stamped in the wrong position. During the stamping process, the workpiece is compressed and shrinks; the die body has stamping grooves, and the cover plate has stamping holes that match the stamping grooves. After the core block is positioned by the stamping holes, it is pressed towards the stamping grooves to further stamp the workpiece. Since the periphery of the workpiece is fixed and pressed by the pressure plate, the workpiece will not deform when the core block is used to stamp the middle of the workpiece. One set of dies can complete the stamping of the grid-type workpiece, which improves the processing accuracy and efficiency of the workpiece.

[0004] The solution also has the following problems: the mold is not easy to remove after hydraulic forming, which reduces the processing efficiency and has certain drawbacks.

[0005] Therefore, in order to solve the above problems, this application provides a grid hydroforming mold. Utility Model Content

[0006] The purpose of this utility model is to provide a grid hydroforming mold to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a grid hydraulic forming mold, comprising a base, a fixing ear installed at one top end of the base, an electric telescopic rod installed outside the fixing ear, a movable frame installed on the movable end of the electric telescopic rod, inclined grooves symmetrically opened at both ends of the movable frame, a support plate provided inside the movable frame, cylindrical blocks installed at both ends of the support plate and inside the two inclined grooves, a number of top blocks equally spaced on the top of the support plate, support columns installed at the four corners of the top of the base, a base plate installed on the top of the support columns and above the movable frame, a lower mold installed on the top of the base plate, a number of stamping grooves equally spaced on the top of the lower mold, an upper mold provided above the top of the lower mold, and a number of stamping blocks equally spaced on the bottom of the upper mold.

[0008] Preferably, limit blocks are symmetrically installed at both ends of the top of the lower mold, and a limit frame is installed on the top of the lower mold between the two limit blocks, and the inner wall dimension of the limit frame is adapted to the outer dimension of the upper mold.

[0009] Preferably, connecting ears are symmetrically installed on both outer ends of the lower mold, an adjusting bolt is installed on the top of the connecting ears, and a limit plate is installed on the outside of the adjusting bolt.

[0010] Preferably, a limiting rod is installed on the top of the limiting block, and the top of the limiting rod passes through the limiting plate and extends above its top.

[0011] Preferably, the top and bottom of the movable frame are slidably connected to the base plate and the base, and when the movable frame moves, the two cylindrical blocks slide synchronously inside the slide groove, driving the support plate and multiple sets of top blocks to rise and fall. When the cylindrical block is at the lowest end of the slide groove, the multiple sets of top blocks are exactly inside the slide groove, and the top of the base plate is flush with the multiple sets of top blocks. The slide groove is connected to the stamping groove on the top.

[0012] Preferably, the number of multiple sets of stamping blocks is matched with the number of multiple sets of stamping slots, the multiple sets of stamping blocks descend with the upper mold and enter the interior of the multiple sets of stamping slots, and the top of the upper mold is provided with a mounting plate.

[0013] In summary, this application includes the following beneficial technical effects:

[0014] This type of grid hydroforming mold uses a limiting frame to fix the part to be stamped on the lower mold, preventing displacement during stamping. Two limiting blocks position the limiting frame. After the limiting frame fixes the part, rotating two adjusting bolts lowers the external limiting plate, thus fixing the limiting frame between the two limiting blocks, making the stamping of the part more stable. An electric telescopic rod retracts, moving the movable frame. As the movable frame moves, two cylindrical blocks slide synchronously inside the slide groove, causing the support plate and multiple sets of top blocks to rise. These top blocks rise, pass through the slide groove and stamping groove, and eject the stamped part, facilitating collection and making operation convenient. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a utility model Figure 1 Schematic diagram of structural layering;

[0017] Figure 3 This is a utility model Figure 2 Schematic diagram of structural layering;

[0018] Figure 4 This is a utility model Figure 3 Schematic diagram of part A in the middle;

[0019] Figure 5 This is a utility model Figure 3 Partial structural layering diagram;

[0020] Figure 6 This is a utility model Figure 5 A schematic diagram of the partial structure's layering.

[0021] Explanation of reference numerals in the attached drawings: 1. Base; 101. Support column; 2. Fixing lug; 3. Electric telescopic rod; 4. Movable frame; 401. Inclined groove; 5. Support plate; 6. Cylindrical block; 7. Top block; 8. Base plate; 801. Sliding groove; 9. Lower mold; 901. Stamping groove; 902. Limiting block; 10. Upper mold; 11. Stamping block; 12. Limiting frame; 13. Mounting plate; 14. Connecting lug; 15. Adjusting bolt; 16. Limiting plate; 17. Limiting rod. Detailed Implementation

[0022] The following is in conjunction with the appendix Figure 1 - Figure 6 This application will be described in further detail.

[0023] A grid hydroforming mold, as shown in the reference Figure 1 - Figure 6The system includes a base 1, a fixed ear 2 installed at one top end of the base 1, an electric telescopic rod 3 installed on the outside of the fixed ear 2, a movable frame 4 installed on the movable end of the electric telescopic rod 3, inclined grooves 401 symmetrically opened at both ends of the movable frame 4, a support plate 5 installed inside the movable frame 4, cylindrical blocks 6 installed at both ends of the support plate 5 and inside the two inclined grooves 401, several sets of top blocks 7 installed at equal intervals on the top of the support plate 5, support columns 101 installed at the four corners of the top of the base 1, a base plate 8 installed on the top of the support columns 101 and above the movable frame 4, a lower mold 9 installed on the top of the base plate 8, several sets of stamping grooves 901 equidistantly opened on the top of the lower mold 9, an upper mold 10 installed above the top of the lower mold 9, and several sets of stamping blocks 11 equidistantly installed on the bottom of the upper mold 10.

[0024] Reference Figure 1 - Figure 3 Limiting blocks 902 are symmetrically installed at both ends of the top of the lower mold 9. A limiting frame 12 is installed on the top of the lower mold 9 between the two limiting blocks 902. The inner wall size of the limiting frame 12 is adapted to the outer size of the upper mold 10. The limiting frame 12 is set to fix the part to be stamped on the lower mold 9 to avoid displacement during the stamping process. The two limiting blocks 902 are set to position the limiting frame 12.

[0025] Reference Figure 3 - Figure 5 Connecting ears 14 are symmetrically installed on both ends of the lower mold 9. Adjusting bolts 15 are installed on the top of the connecting ears 14. Limiting plates 16 are installed on the outside of the adjusting bolts 15. After the limiting frame 12 fixes the part to be stamped, the two adjusting bolts 15 are rotated. When the adjusting bolts 15 rotate, they drive the outer limiting plate 16 to descend, thereby fixing the limiting frame 12 between the two limiting blocks 902, making the stamping of the part to be stamped more stable. A limiting rod 17 is installed on the top of the limiting block 902. The top of the limiting rod 17 passes through the limiting plate 16 and extends above its top. By setting the limiting rod 17, the stability of the lifting and lowering of the limiting plate 16 is increased.

[0026] Reference Figure 5 - Figure 6The top and bottom of the movable frame 4 are slidably connected to the base plate 8 and the base 1. When the movable frame 4 moves, the two cylindrical blocks 6 slide synchronously inside the slide groove 801, driving the support plate 5 and multiple sets of top blocks 7 to rise and fall. When the cylindrical block 6 is at the lowest end of the slide groove 801, the multiple sets of top blocks 7 are exactly inside the slide groove 801. The top of the base plate 8 is flush with the multiple sets of top blocks 7. The slide groove 801 is connected to the stamping groove 901 at the top. When the upper mold 10 descends and enters the stamping groove 901 through the stamping block 11 for stamping, the upper mold 10 will rise and reset. The movable frame 4 will move by retracting the electric telescopic rod 3. When the movable frame 4 moves, the two cylindrical blocks 6 slide synchronously inside the slide groove 801, driving the support plate 5 and multiple sets of top blocks 7 to rise. After the multiple sets of top blocks 7 rise and pass through the slide groove 801 and the stamping groove 901, they will push out the stamped parts, which is convenient for collecting the stamped parts.

[0027] Reference Figure 1 - Figure 3 The number of multiple sets of stamping blocks 11 is matched with the number of multiple sets of stamping grooves 901. The multiple sets of stamping blocks 11 descend with the upper mold 10 and enter the interior of the multiple sets of stamping grooves 901, thereby facilitating the completion of stamping. The top of the upper mold 10 is provided with a mounting plate 13, which facilitates the connection of the upper mold 10 to external hydraulic equipment.

[0028] The implementation principle of a grid hydraulic forming mold according to an embodiment of this application is as follows: When using the grid hydraulic forming mold, the upper mold 10 is easily connected to external hydraulic equipment via the mounting plate 13. A limiting frame 12 is provided to fix the part to be stamped on the lower mold 9, preventing displacement during the stamping process. Two limiting blocks 902 are provided to position the limiting frame 12. After the limiting frame 12 fixes the part to be stamped, rotating the two adjusting bolts 15 causes the external limiting plate 16 to descend, thereby fixing the limiting frame 12 between the two limiting blocks 902, making the stamping of the part to be stamped more stable. A limiting rod 17 is installed on the top of the limiting block 902. The top of the limiting rod 17 passes through the limiting plate 16 and extends above its top. The limiting rod 17 increases the stability of the lifting and lowering of the limiting plate 16. When the upper mold 10 descends and enters the stamping groove 901 through the stamping block 11 for stamping, the upper mold 10 will rise and reset. The electric telescopic rod 3 retracts to drive the movable frame 4 to move. When the movable frame 4 moves, the two cylindrical blocks 6 slide synchronously inside the slide groove 801, driving the support plate 5 and multiple sets of top blocks 7 to rise. After the multiple sets of top blocks 7 rise and pass through the slide groove 801 and the stamping groove 901, they push out the stamped parts, which is convenient for collecting the stamped parts and is easy to operate.

[0029] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0030] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0031] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

[0032] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A grid hydroforming mold, comprising a base (1), characterized in that: A fixed ear (2) is installed at one top end of the base (1). An electric telescopic rod (3) is installed on the outside of the fixed ear (2). A movable frame (4) is installed on the movable end of the electric telescopic rod (3). Inclined grooves (401) are symmetrically opened at both ends of the movable frame (4). A support plate (5) is provided inside the movable frame (4). Cylindrical blocks (6) are installed at both ends of the support plate (5) and inside the two inclined grooves (401). The top of the support plate (5) is equipped with equally spaced... Several sets of top blocks (7), support columns (101) are installed at the four corners of the top of the base (1), a base plate (8) is installed on the top of the support column (101) and above the movable frame (4), a lower mold (9) is installed on the top of the base plate (8), several sets of stamping grooves (901) are equally spaced on the top of the lower mold (9), an upper mold (10) is set above the top of the lower mold (9), and several sets of stamping blocks (11) are equally spaced on the bottom of the upper mold (10).

2. The grid hydroforming mold according to claim 1, characterized in that: Limiting blocks (902) are symmetrically installed at both ends of the top of the lower mold (9). A limiting frame (12) is installed on the top of the lower mold (9) and between the two limiting blocks (902). The inner wall dimension of the limiting frame (12) is adapted to the outer dimension of the upper mold (10).

3. The grid hydroforming mold according to claim 1, characterized in that: Connecting ears (14) are symmetrically installed on both ends of the lower mold (9). An adjusting bolt (15) is installed on the top of the connecting ear (14). A limiting plate (16) is installed on the outside of the adjusting bolt (15).

4. The grid hydroforming mold according to claim 2, characterized in that: The top of the limiting block (902) is fitted with a limiting rod (17), the top of which passes through the limiting plate (16) and extends above its top.

5. The grid hydroforming mold according to claim 1, characterized in that: The top and bottom of the movable frame (4) are slidably connected to the base plate (8) and the base (1). When the movable frame (4) moves, the two cylindrical blocks (6) slide synchronously inside the slide groove (801), driving the support plate (5) and multiple sets of top blocks (7) to rise and fall. When the cylindrical block (6) is at the lowest end of the slide groove (801), the multiple sets of top blocks (7) are exactly inside the slide groove (801). The top of the base plate (8) is flush with the multiple sets of top blocks (7). The slide groove (801) is connected to the stamping groove (901) at the top.

6. The grid hydroforming mold according to claim 1, characterized in that: The number of multiple sets of stamping blocks (11) is matched with the number of multiple sets of stamping grooves (901). The multiple sets of stamping blocks (11) descend with the upper mold (10) and enter the interior of the multiple sets of stamping grooves (901). The upper mold (10) is provided with a mounting plate (13) on its top.