Precision mold shaping mold

By combining the limiting and adjusting components, the mold achieves adaptive clamping and precise positioning, solving the problems of workpiece deformation and unstable forming accuracy caused by improper pressure control of traditional molds, and improving forming accuracy and automation level.

CN224208964UActive Publication Date: 2026-05-08NANTONG JIUJIU MOLD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANTONG JIUJIU MOLD CO LTD
Filing Date
2025-05-07
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

Traditional molds use fixed clamps for positioning, which can lead to improper pressure control, workpiece deformation or mold wear. They rely on manual clamping and adjustment and require complete disassembly for mold changes, resulting in unstable forming accuracy.

Method used

It employs a limit assembly, an adjustment assembly, and a pressing assembly. It achieves adaptive clamping by driving the connecting rod and the pushing assembly with an electric cylinder. It combines hydraulic rods and guide rods for precise positioning and shaping, and uses compression springs to provide initial preload and elastic buffering.

Benefits of technology

It achieves adaptive clamping for workpieces of different specifications, avoids workpiece deformation and mold wear, ensures shaping accuracy and surface quality, and improves the level of automation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of dies, and discloses a precision die shaping die which comprises a supporting box body, the top of the supporting box body is provided with a limiting frame, a limiting assembly and a supporting frame, the limiting assembly is located on the side wall of the inner ring of the limiting frame, the bottom end of the supporting frame is fixedly connected to the two ends of the top side of the supporting box body, and the limiting assembly is located on the limiting frame. An adjusting assembly is arranged on the inner side of the limiting assembly in a penetrating mode, the adjusting assembly comprises an electric cylinder, a connecting rod and a pushing assembly, and the bottom end of the connecting rod is fixedly connected to the outer end of the electric cylinder. A to-be-shaped workpiece can be initially positioned through the limiting assembly, an electric cylinder of the adjusting assembly drives a connecting rod and the pushing assembly, the limiting distance is dynamically adjusted according to the size of the workpiece, self-adaptive clamping of the workpieces of different specifications is achieved, errors caused by manual adjustment are avoided, and workpiece deformation or die abrasion caused by uneven pressure is avoided; and shaping precision and surface quality are guaranteed.
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Description

Technical Field

[0001] This utility model relates to the field of mold technology, specifically a precision mold shaping mold. Background Technology

[0002] Traditional molds typically use fixed fixtures to position the workpiece. Excessive pressure can cause workpiece deformation or mold wear, while insufficient pressure can lead to incomplete shaping. Furthermore, they rely on manual clamping and adjustment. The fixtures and mold components are fixedly connected, and the entire mold needs to be disassembled when changing workpieces of different specifications. Due to the fixed positioning method, rough pressure control, and low level of automation, the shaping accuracy is unstable. Utility Model Content

[0003] The purpose of this utility model is to solve the problems of traditional molds using fixed clamps for positioning, which are prone to workpiece deformation, mold wear or incomplete shaping due to improper pressure control, and rely on manual clamping and adjustment, and require the entire mold to be disassembled for shape change. Due to fixed positioning, rough pressure control and low level of automation, the shaping accuracy is unstable. This utility model provides a precision mold shaping mold.

[0004] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0005] A precision mold forming mold includes a support box. A limit frame, a limit component, and a support frame are provided on the top of the support box. The limit component is located on the inner side wall of the limit frame. The bottom end of the support frame is fixedly connected to both ends of the top side of the support box. An adjustment component is provided through the inner side of the limit component. The adjustment component includes an electric cylinder, a connecting rod, and a pushing component. The bottom end of the connecting rod is fixedly connected to the outer end of the electric cylinder, and the top end of the connecting rod is fixedly connected to the middle of the outer side wall of the pushing component. The outer end of the adjustment component penetrates the side wall of the support frame and extends into the interior of the support box. A connecting frame is fixedly connected to the rear side of the support box. A pressure feeding component penetrates the inner ring of the upper end of the connecting frame. An upper mold is fixedly connected to the bottom end of the pressure feeding component. A control panel is provided on the front side of the support box.

[0006] Furthermore, the limiting component includes an outer frame, a movable frame, and a compression spring. The outer frame, the movable frame, and the compression spring are disposed on the outer side of the inner ring of the limiting frame. The outer frame, the movable frame, and the compression spring are disposed on the top side of the support box. The movable frame expands outward under the action of the compression spring, thereby increasing the inner ring size of the limiting component and facilitating the placement of the workpiece.

[0007] Furthermore, the inner side of the movable frame is located at the side end of the outer frame, and the compression spring is slidably connected between the outer frame and the inner side of the movable frame. The outer wall of the workpiece contacts the inner side of the movable frame, and the compression spring generates an initial preload to initially position the workpiece.

[0008] Furthermore, the electric cylinder is located on the inner bottom side of the support box, the connecting rod surrounds the upper and lower sides of the support box, the upper inner end of the connecting rod penetrates the side wall of the limiting frame, and the front and rear ends of the pushing component are slidably connected to the top of the side wall of the limiting component. The operator starts the electric cylinder through the control panel, the piston rod pushes the connecting rod upward, and the pushing component at the top of the connecting rod moves accordingly.

[0009] Furthermore, the pushing component includes a sliding plate and a telescopic rod. The outer end of the sliding plate is slidably connected to the outer side of the limiting component. The sliding plate of the pushing component slides along the outer side of the limiting component, while the telescopic rod extends and retracts between the two ends of the sliding plate.

[0010] Furthermore, the slide plate is divided into two ends, and the telescopic rod passes through and slides between the two ends of the slide plate. The telescopic rod extends and retracts between the two ends of the slide plate, and the pushing force is adjusted according to the specific size of the workpiece, such as the pipe diameter.

[0011] Furthermore, the pressing assembly includes a hydraulic rod, a pressure plate, and a guide rod. The top side of the pressure plate is fixedly connected to the bottom end of the hydraulic rod. The bottom ends of the guide rods are respectively disposed at both ends of the top side of the pressure plate. The top side of the upper mold is fixedly connected to the bottom side of the pressure plate. The operator starts the hydraulic rod through the control panel. The piston rod of the hydraulic rod extends downward, pushing the pressure plate and the upper mold fixed to its bottom side to descend vertically.

[0012] Compared with the prior art, the present invention provides a precision mold forming mold, which has the following beneficial effects:

[0013] This precision mold forming die can initially position the workpiece to be formed through a limiting component. The electric cylinder drive connecting rod and pushing component of the adjusting component can dynamically adjust the limiting distance according to the workpiece size, so as to achieve adaptive clamping of workpieces of different specifications, avoid errors caused by manual adjustment, avoid workpiece deformation or mold wear caused by uneven pressure, and ensure forming accuracy and surface quality. Attached Figure Description

[0014] Figure 1 This is a three-dimensional view of the front of the overall external structure of this utility model;

[0015] Figure 2 This is a three-dimensional view showing the overall external structure of this utility model.

[0016] Figure 3This is a three-dimensional view of the bottom structure of the internal structure of this practical pressure conveying assembly;

[0017] Figure 4 The front view shows the front structure of this utility adjustment component;

[0018] Figure 5 The top diagram shows the relevant structure between the limiting component and the adjusting component of this utility model;

[0019] Figure 6 A three-dimensional diagram showing the structure between the limiting component and the adjusting component of this utility model;

[0020] Figure 7 This is a three-dimensional diagram showing the expansion and contraction of the structure between the limiting component and the adjusting component of this utility model.

[0021] In the diagram: 1. Support box; 2. Limiting frame; 3. Limiting component; 31. Outer frame; 32. Movable frame; 33. Compression spring; 4. Support frame; 5. Adjusting component; 51. Electric cylinder; 52. Connecting rod; 53. Pushing component; 531. Slide plate; 532. Telescopic rod; 6. Connecting frame; 7. Pressing component; 71. Hydraulic rod; 72. Pressure plate; 73. Guide rod; 8. Upper mold; 9. Control panel. 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 protection scope of the present utility model. Example:

[0023] like Figures 1-7 As shown, a precision mold forming mold includes a support box 1. The top of the support box 1 is provided with a limit frame 2, a limit component 3, and a support frame 4. The limit component 3 is located on the inner side wall of the limit frame 2. The bottom end of the support frame 4 is fixedly connected to both ends of the top side of the support box 1. An adjustment component 5 is provided through the inner side of the limit component 3. The outer end of the adjustment component 5 passes through the side wall of the support frame 4 and extends into the interior of the support box 1. A connecting frame 6 is fixedly connected to the rear side of the support box 1. A pressing and feeding component 7 passes through the inner ring of the upper end of the connecting frame 6. An upper mold 8 is fixedly connected to the bottom end of the pressing and feeding component 7. A control panel 9 is provided on the front side of the support box 1.

[0024] like Figures 5-7As shown, the limiting component 3 includes an outer frame 31, a movable frame 32, and a compression spring 33. The outer sides of the outer frame 31, the movable frame 32, and the compression spring 33 are disposed on the inner ring of the limiting frame 2. The outer frame 31, the movable frame 32, and the compression spring 33 are disposed on the top side of the support box 1. The inner side of the movable frame 32 is located at the side end of the outer frame 31. The compression spring 33 is slidably connected between the inner sides of the outer frame 31 and the movable frame 32. When the sliding plate 531 abuts against the outer side of the movable frame 32, the compression spring 33 is further compressed, and the movable frame 32 moves inward until the workpiece is clamped at the center position of the limiting component 3, thus completing precise positioning.

[0025] like Figures 4-7 As shown, the adjustment component 5 includes an electric cylinder 51, a connecting rod 52, and a pushing component 53. The bottom end of the connecting rod 52 is fixedly connected to the outer end of the electric cylinder 51, and the top end of the connecting rod 52 is fixedly connected to the middle of the outer side wall of the pushing component 53. The electric cylinder 51 is located on the inner bottom side of the support box 1. The connecting rod 52 surrounds the upper and lower sides of the support box 1. The inner end of the upper end of the connecting rod 52 penetrates the side wall of the limiting frame 2. The front and rear ends of the pushing component 53 are slidably connected to the top of the side wall of the limiting component 3. The pushing component 53 includes a sliding plate 531 and a telescopic rod 532. The outer end of the sliding plate 531 is slidably connected to the outer side of the limiting component 3. The sliding plate 531 is divided into two ends. The telescopic rod 532 passes through and is slidably connected to the interior between the two ends of the sliding plate 531. The sliding plate 531 of the pushing component 53 slides along the outer side of the limiting component 3, while the telescopic rod 532 extends and retracts between the two ends of the sliding plate. The pushing force is adjusted according to the specific size of the workpiece, such as the pipe diameter.

[0026] like Figure 3 As shown, the pressing assembly 7 includes a hydraulic rod 71, a pressure plate 72, and a guide rod 73. The top side of the pressure plate 72 is fixedly connected to the bottom end of the hydraulic rod 71. The bottom ends of the guide rods 73 are respectively set at both ends of the top side of the pressure plate 72. The top side of the upper die 8 is fixedly connected to the bottom side of the pressure plate 72. The upper die 8 descends with the pressure plate 72 to contact the workpiece. At this time, the limiting assembly 3 limits the circumference of the workpiece through the movable frame 32 to prevent the workpiece from displacing or deforming when pressed. The hydraulic rod 71 continues to apply pressure. The upper die 8 and the lower die set in the inner ring of the limiting assembly 3 are usually fixed to the top of the support box to squeeze and shape the workpiece.

[0027] Working principle: such as Figures 1-7 As shown, the initial state and workpiece positioning are as follows:

[0028] In the initial state, the movable frame 32 is pushed outward by the compression spring 33, which increases the inner ring size of the limiting component 3, making it easier to put the workpiece in.

[0029] The operator places the workpiece to be shaped inside the limiting frame 2. The outer wall of the workpiece contacts the inner side of the movable frame 32. The compression spring 33 generates initial pre-pressure to initially position the workpiece and ensure that the workpiece axis coincides with the center line of the lower mold set in the inner ring of the upper mold 8 and the limiting component 3.

[0030] Adjust the pre-positioning function of the component:

[0031] The electric cylinder 51 of the adjusting component 5 is located inside the support box 1. In the initial state, the piston rod of the electric cylinder is retracted. When the workpiece is placed in, the operator starts the electric cylinder 51 through the control panel 9. The piston rod pushes the connecting rod 52 to move upward, and the pushing component 53 at the top of the connecting rod moves accordingly.

[0032] The sliding plate 531 of the pushing component 53 slides along the outer side of the limiting component 3, while the telescopic rod 532 extends and retracts between the two ends of the sliding plate. The pushing force is adjusted according to the specific size of the workpiece, such as the pipe diameter. When the sliding plate 531 abuts against the outer side of the movable frame 32, the compression spring 33 is further compressed, and the movable frame 32 moves inward until the workpiece is clamped in the center of the limiting component 3, thus completing the precise positioning.

[0033] Hydraulic drive and guidance control:

[0034] The connecting frame 6 is fixed to the rear side of the support box 1. The hydraulic rod 71 of the pressing assembly 7 is vertically set through the guide hole at the top of the connecting frame. In the initial state, the hydraulic rod 71 is in the retracted state, and the upper mold 8 is located at a safe distance above the limit frame 2.

[0035] After the workpiece is positioned, the operator starts the hydraulic rod 71 through the control panel 9. The hydraulic rod piston rod extends downward, pushing the pressure plate 72 and the upper mold 8 fixed to its bottom side to descend vertically. The top of the guide rod 73 is slidably connected to the connecting frame 6, and the bottom end passes through the pressure plate 72 and is equipped with a linear bearing to ensure that the pressure plate 72 remains vertical during the descent, avoid the upper mold 8 from shifting, and ensure the shaping accuracy.

[0036] Mold closing and workpiece shaping:

[0037] The upper die 8 descends with the pressure plate 72 to contact the workpiece. At this time, the limiting component 3 limits the circumferential direction of the workpiece through the movable frame 32 to prevent the workpiece from shifting or deforming when it is pressed. The hydraulic rod 71 continues to apply pressure. The upper die 8 and the lower die set in the inner ring of the limiting component 3 are usually fixed to the top of the support box to squeeze and shape the workpiece.

[0038] Hydraulic pressure is used to shape the square tube to the design precision; during the shaping process, the compression spring 33 continuously provides lateral pressure to ensure that the workpiece fits tightly with the mold cavity and avoid gaps that could lead to shaping defects.

[0039] Elastic buffer and reset function

[0040] The compression spring 33 in the limiting component 3 plays an elastic buffering role during the shaping process. After the hydraulic rod 71 completes the shaping stroke, the operator controls the hydraulic rod piston rod to retract through the control panel 9, and the upper mold 8 rises and resets with the pressure plate 72.

[0041] The electric cylinder 51 moves synchronously in opposite directions, and the connecting rod 52 drives the pushing component 53 to release the movable frame 32. The compressed spring 33 releases its elastic potential energy and pushes the movable frame 32 to reset outward, making it easier for the operator to remove the shaped workpiece.

[0042] The upper mold and the pressure plate 72 are detachably connected, such as by bolts. The lower mold is fixed in the mounting groove at the top of the support box 1 and can be quickly disassembled and assembled by positioning pins and bolts.

[0043] The telescopic rod 532 of the adjusting component 5 can adjust the spacing of the slide plates 531 to adapt to the clamping requirements of workpieces with different outer diameters. For large-sized workpieces, the telescopic rod 532 extends to increase the spacing between the two slide plates 531; for small-sized workpieces, the telescopic rod shortens to reduce the spacing between the slide plates, ensuring that the limiting component 3 always matches the outer diameter of the workpiece.

Claims

1. A precision mold forming mold, comprising a support box (1), characterized in that: The top of the support box (1) is provided with a limiting frame (2), a limiting component (3) and a support frame (4). The limiting component (3) is located on the inner side wall of the limiting frame (2). The bottom end of the support frame (4) is fixedly connected to the two ends of the top side of the support box (1). An adjustment component (5) is provided through the inner side of the limiting component (3). The adjustment assembly (5) includes an electric cylinder (51), a connecting rod (52) and a pushing assembly (53). The bottom end of the connecting rod (52) is fixedly connected to the outer end of the electric cylinder (51), and the top end of the connecting rod (52) is fixedly connected to the middle of the outer side wall of the pushing assembly (53). The outer end of the adjustment component (5) penetrates the side wall of the support frame (4) and extends into the interior of the support box (1). A connecting frame (6) is fixedly connected to the rear side of the support box (1). A pressure feeding component (7) penetrates the inner ring of the upper end of the connecting frame (6). An upper mold (8) is fixedly connected to the bottom end of the pressure feeding component (7). A control panel (9) is provided on the front side of the support box (1).

2. The precision mold forming mold according to claim 1, characterized in that: The limiting component (3) includes an outer frame (31), a movable frame (32), and a compression spring (33). The outer frame (31), the movable frame (32), and the compression spring (33) are located on the outer side of the limiting frame (2) and on the top side of the support box (1).

3. The precision mold forming mold according to claim 2, characterized in that: The inner side of the movable frame (32) is located at the side end of the outer frame (31), and the compression spring (33) is slidably connected between the outer frame (31) and the inner side of the movable frame (32).

4. The precision mold forming mold according to claim 1, characterized in that: The electric cylinder (51) is located on the inner bottom side of the support box (1), the connecting rod (52) surrounds the upper and lower sides of the support box (1), the upper inner end of the connecting rod (52) penetrates the side wall of the limiting frame (2), and the front and rear ends of the pushing component (53) are slidably connected to the top of the side wall of the limiting component (3).

5. A precision mold forming mold according to claim 1, characterized in that: The pushing component (53) includes a sliding plate (531) and a telescopic rod (532), with the outer end of the sliding plate (531) slidably connected to the outer side of the limiting component (3).

6. A precision mold forming mold according to claim 5, characterized in that: The slide plate (531) is divided into two ends, and the telescopic rod (532) passes through and slides between the two ends of the slide plate (531).

7. A precision mold forming mold according to claim 1, characterized in that: The pressing assembly (7) includes a hydraulic rod (71), a pressure plate (72) and a guide rod (73). The top side of the pressure plate (72) is fixedly connected to the bottom end of the hydraulic rod (71). The bottom ends of the guide rods (73) are respectively disposed at both ends of the top side of the pressure plate (72). The top side of the upper mold (8) is fixedly connected to the bottom side of the pressure plate (72).