Forming insert for stamping die

Abstract

The forming insert comprises a body, a forming block installed on the body and a hydraulic assembly used for driving the forming block to move, at least one hydraulic cavity is formed in the body, and at least one forming block partially inserted into the hydraulic cavity is embedded in the outer surface of the body. The forming block and the body are in guide fit through a guide column and a guide groove. The forming block part is partially exposed out of the side face of the body. According to the forming insert, a fixing part in a traditional mold is replaced by the hydraulically-driven telescopic protruding part, the position of the forming part can be flexibly adjusted in a limited space through the innovative design, and the mold design can be simplified while the structural strength is guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of stamping dies, in particular to a forming insert for stamping dies. BACKGROUND

[0002] Existing stamping die technology is widely used in various metal forming processes, especially in the manufacturing of complex-shaped parts. Traditional stamping dies are usually composed of multiple fixed and adjustable components, such as pins, sliders, forming inserts, etc. These components work together to achieve precise forming of workpieces. However, as manufacturing processes become more complex and precision requirements increase, existing stamping die designs and uses gradually reveal some shortcomings. Especially when the layout space of the stamping die is limited, traditional designs are difficult to effectively solve the space constraint problem. In addition, the structural strength of the pins and sliders in the die is often difficult to withstand high-strength stamping pressure, which can easily lead to fatigue damage or failure, thereby affecting the stability and service life of the overall die.

[0003] The main reason for these shortcomings is that the existing stamping die structure design cannot flexibly adjust or change the position and pressure distribution of the forming components, resulting in a complex overall structure and tight space layout. Traditional designs rely on rigid components to complete most of the forming tasks. While this design is effective in some simple dies, it is not sufficient when faced with complex shapes and high precision requirements. Especially the adjustability of the die and the control of the forming pressure usually rely on manual or mechanical adjustment, which not only increases the operation difficulty, but also limits the improvement of die performance.

[0004] In order to solve these problems, it is particularly important to develop a new type of stamping die forming insert. CONTENT OF THE INVENTION

[0005] The purpose of the present application is to at least overcome one of the shortcomings of the prior art, and to provide a forming insert for stamping dies. The forming insert replaces the fixed components in traditional dies with a hydraulic-driven telescopic protruding component. This innovative design not only allows flexible adjustment of the position of the forming component in limited space, but also simplifies the die design while ensuring structural strength. Through hydraulic system driving, the forming pressure can be accurately controlled, thereby avoiding the structural failure problem caused by uneven forming pressure in traditional designs.

[0006] To achieve the above object, the application discloses a forming insert for a stamping die, which comprises a body, a forming block mounted on the body, and a hydraulic assembly for driving the forming block to move, wherein at least one hydraulic cavity is arranged in the body, at least one forming block partially inserted into the hydraulic cavity is embedded on the outer surface of the body, and the forming block and the body are guided and matched through guide columns and guide grooves; the forming block partially exposes the side surface of the body; the hydraulic cavity is independently connected with a hydraulic assembly through a rigid pipeline; the hydraulic assembly comprises a hydraulic cylinder and a hydraulic piston inserted into the hydraulic cylinder and provided with a return spring; the hydraulic cylinder, the rigid pipeline and the hydraulic cavity are filled with hydraulic oil; when the hydraulic piston moves downward, the forming block is driven to horizontally extend through the hydraulic oil, and the forming is completed; when the hydraulic piston is reset, the forming block is synchronously reset.

[0007] In some embodiments, an insulating block is embedded on the outer surface of the forming block, two opposite and extendable conductive pins are arranged in the insulating block, the conductive pins are connected with an external induction circuit through lead wires, one of the conductive pins is a positive electrode, and the other is a negative electrode; when the two conductive pins simultaneously contact the metal plate, a trigger signal is generated.

[0008] In some embodiments, the forming block is provided with a secondary forming cavity filled with hydraulic oil, and a secondary forming block partially inserted into the secondary forming cavity from the forming surface of the forming block; during work, the secondary forming block is synchronously extended with the forming block, and more complex forming processing is completed.

[0009] In some embodiments, the hydraulic cavity has a plurality of hydraulic assemblies.

[0010] In some embodiments, one hydraulic cavity is matched with two or more forming blocks.

[0011] In some embodiments, the hydraulic assembly has two or more hydraulic pistons with different initial heights.

[0012] In some embodiments, a hydraulic sensor is arranged in the hydraulic cavity.

[0013] In some embodiments, a hydraulic sensor is arranged in the hydraulic cylinder.

[0014] In some embodiments, the part of the hydraulic piston of the hydraulic assembly extending out of the hydraulic cylinder has an adjusting part with an adjustable height.

[0015] Compared with the prior art, the application has at least one beneficial effect:

[0016] 1. Improved space utilization: The hydraulic-driven telescopic forming block design allows for flexible adjustment of the position of the forming components within limited space, optimizing the structural layout of the mold and avoiding the complexity of layout caused by space limitations in traditional molds.

[0017] 2. Precise control of forming pressure: The hydraulic system can accurately control the forming pressure, avoiding the structural failure problems caused by uneven pressure in traditional designs, thereby improving the stability and forming quality of the mold.

[0018] 3. Enhanced mold adaptability and flexibility: The hydraulic drive of the forming block and the design of the secondary forming block enable the forming insert to adapt to more complex forming tasks, especially in high-precision and multi-process machining, and can flexibly respond to different shape and size forming requirements.

[0019] The above-listed benefits are not exhaustive of all advantages. Other potential benefits and detailed technical implementations will be further disclosed in the embodiments or other description sections of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0020] The specific embodiments will be better understood after reading the following detailed description in conjunction with the accompanying drawings, in which the positions, sizes, and ranges of the structures shown in the drawings are sometimes not representative of actual positions, sizes, and ranges. In the drawings:

[0021] Figure 1 is a structural schematic diagram of an embodiment of the present disclosure.

[0022] Figure 2 is a structural schematic diagram of the body in an embodiment of the present disclosure.

[0023] Figure 3 is a structural schematic diagram of the body in another view in an embodiment of the present disclosure.

[0024] Figure 4 is a structural schematic diagram of the internal structure of the body in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0025] The present disclosure will be described below with reference to the accompanying drawings, which show several embodiments of the present disclosure. It should be understood that the present disclosure can be presented in many different ways and is not limited to the embodiments described below; in fact, the embodiments described below are intended to make the disclosure of the present disclosure more complete and fully inform those skilled in the art of the scope of protection of the present disclosure. It should also be understood that the embodiments disclosed herein can be combined in various ways to provide more additional embodiments.

[0026] It should be understood that like reference numerals in all figures refer to like elements. In the figures, the dimensions of some features can be exaggerated for clarity.

[0027] It is to be understood that the phraseology and terminology used herein is for the purpose of description and not of limitation. All technical and scientific terms used herein are to the same effect as those commonly understood to one of ordinary skill in the art unless otherwise defined. For the sake of clarity, technical, methodological and apparatus descriptions known to those of ordinary skill in the relevant art(s) can not be discussed in detail herein, but should be considered part of the specification.

[0028] As used in the specification, the singular forms "a," "an," and "the" include plural references unless the context clearly dictates otherwise. As used in the specification, the language "includes" and / or "comprises" and / or "containing" and / or "having" and / or "encompassing" shall not be construed as open-ended, unless the context clearly dictates otherwise. As used in the specification, the language "and / or" includes all possible combinations of one or more of the associated listed items. Embodiments

[0029] With reference to the accompanying Figures 1-4 , the present embodiment elaborates on the structural composition, working principle, and coordination between components of the forming insert for stamping dies, to support the preferred specific implementation of the present application for those skilled in the art. Through innovative design, the forming insert adopts a hydraulic-driven telescopic structure, effectively overcoming the difficulties in layout within limited space and uneven forming pressure of traditional stamping dies, achieving the goal of precise control of forming pressure and improving the adaptability of the die. The present embodiment elaborates on the technical advantages and application prospects of the forming insert through detailed structural description and working principle.

[0030] The core components of the forming insert for stamping dies of the present application include: a body 1, a forming block 4, a hydraulic assembly 2, a hydraulic cavity 5, guide columns and guide grooves, etc. Through precise coordination between components, the forming task of the stamping die is completed. At least one hydraulic cavity 5 is provided in the body 1, which is connected with the hydraulic assembly 2 through a rigid pipeline 3, so that the hydraulic oil can flow smoothly to the hydraulic piston and drive the forming block 4 to move. The hydraulic assembly 2 precisely adjusts the hydraulic oil pressure to drive the forming block 4 to accurately extend and retract during the stamping process, thereby achieving efficient forming of the workpiece.

[0031] Specifically, the body 1 of the forming insert is made of high-strength alloy steel material to ensure that it does not deform or break during high-strength stamping. On the outer surface of the body 1, at least one forming block 4 is installed. Each forming block 4 is partially inserted into the hydraulic cavity 5 and guided by the guide column and guide groove cooperation with the body 1. The design of the guide column and the guide groove can ensure that the forming block 4 moves along the predetermined path during extension, thereby avoiding mold damage or workpiece forming precision decline caused by offset and asymmetric forming. The outer surface of the forming block 4 is exposed to the side of the body 1 during work, responsible for contacting the workpiece and completing accurate forming.

[0032] The hydraulic assembly 2 is an important part of the present application, which works with the hydraulic cavity 5 through components such as hydraulic cylinders, hydraulic pistons, and return springs. The hydraulic cylinder is connected with the hydraulic cavity 5 through the rigid pipeline 3 to ensure the effective transmission of hydraulic oil. When the hydraulic piston descends, the hydraulic oil pushes the forming block 4 to extend horizontally through the hydraulic cavity 5, completing the forming process. The reset function of the hydraulic piston is provided by the return spring, which drives the forming block 4 to return to the initial position after the hydraulic piston stops descending. This design can ensure that the forming block 4 can quickly return to the initial position after each forming is completed, maintaining the normal working state of the mold.

[0033] It should be understood that the hydraulic piston is usually driven by the hydraulic cylinder in the hydraulic system through the pressure of the hydraulic oil, and the hydraulic piston is not directly driven by the external upper die or the punch on the upper die.

[0034] In this embodiment, the outer surface of the forming block 4 can be embedded with an insulating block 8, which is internally provided with two conductive pins 9. The conductive pins 9 are respectively connected to the external sensing circuit, one being positive and the other being negative. When the metal sheet enters the mold and is pressed, the two conductive pins 9 simultaneously contact the workpiece surface, triggering an induction signal to realize real-time feedback of the forming process. This design not only provides intelligent monitoring means for the forming process, but also further improves the automation control level of the mold, ensuring the stability and consistency of the production process.

[0035] In addition, in this embodiment, the forming block 4 is also provided with a secondary forming cavity 6 connected with the hydraulic cavity 5, and the secondary forming cavity 6 is filled with hydraulic oil. The secondary forming block 7 is inserted into the secondary forming cavity 6 and extends synchronously with the forming block 4. The synchronous extension of the secondary forming block 7 enables the forming insert to perform multi-stage forming or forming work on materials of different thicknesses. This design has obvious advantages in complex workpieces or multi-stage stamping forming processes, and can complete more complex forming tasks in the same mold, thereby improving production efficiency and processing precision.

[0036] It is worth mentioning that in the present embodiment, the number and layout of the hydraulic cavities 5 can be flexibly configured according to different molding needs. For example, the hydraulic cavities 5 can be arranged as multiple relatively independent hydraulic cavities, each driven by an independent hydraulic assembly 2 to drive a corresponding molding block 4. By controlling the cooperation of multiple hydraulic cavities 5 and hydraulic assemblies 2, independent control of multiple molding blocks 4 can be achieved to adapt to the needs of complex shapes and mass production. The cooperation between the hydraulic cavities 5 and the hydraulic assemblies 2 enables the molding insert to efficiently and accurately complete the work when facing various complex molds.

[0037] In addition, in order to further improve the stability and precision of the hydraulic system, the hydraulic cavities 5 and hydraulic cylinders in the present embodiment are also equipped with hydraulic sensors. The hydraulic sensors can monitor the pressure of the hydraulic oil in real time and feed back the monitoring results to the external control system.

[0038] It is worth noting that the extended part of the hydraulic piston has an adjusting part for adjusting the height. This design allows height adjustment based on the initial position of the hydraulic piston, accurately controlling the extension distance of the molding block 4 to adapt to the processing needs of workpieces of different thicknesses or shapes. For example, during the molding process of some thinner workpieces, the adjusting part can lower the initial height of the hydraulic piston to reduce the extension distance of the molding block 4, avoiding unnecessary pressure on the thin workpiece. When processing thicker workpieces, the adjusting part can increase the initial height to ensure sufficient pressure and molding precision.

[0039] The molding insert for a stamping die provided in the present embodiment is an innovation based on traditional die technology, making the die more adaptable, precise, and reliable in complex molding tasks. The introduction of the hydraulic drive system makes the movement of the molding block 4 more flexible and precise, and the control of the molding pressure more uniform, thereby solving the problems of uneven molding and unstable pressure in traditional die design. At the same time, the introduction of the intelligent monitoring system also makes the die more automated and intelligent, providing a more efficient and precise production tool for modern manufacturing.

[0040] From the above description of the embodiments, it can be clearly seen that the molding insert for a stamping die has great technical advantages, not only can adapt to the molding needs of various complex shape parts, but also can improve the precision and efficiency of the molding process while ensuring the simplicity of the die structure. The molding insert is particularly suitable for high-precision and high-efficiency stamping processing fields and has broad prospects in industrial applications in multiple fields.

[0041] While exemplary embodiments of the present disclosure have been described, it is to be understood that the exemplary embodiments of the present disclosure are provided by way of illustration only. Therefore, various changes and modifications can be suggested to those skilled in the art without departing from the spirit and scope of the present disclosure. Thus, all changes and modifications are intended to be included within the scope of the present disclosure as defined by the appended claims. The present disclosure is defined by the appended claims and their equivalents.

Claims

1. A forming insert for a punch die, characterized by, The forming insert comprises a body, a forming block mounted on the body, and a hydraulic assembly for driving the forming block to move, wherein at least one hydraulic cavity is arranged in the body, and at least one forming block is embedded on the outer surface of the body and partially inserted into the hydraulic cavity, and the forming block and the body are guided and matched through guide columns and guide grooves; the forming block partially exposes the side surface of the body; the hydraulic cavity is independently connected to a hydraulic assembly through a rigid pipeline, and the hydraulic assembly comprises a hydraulic cylinder, a hydraulic piston inserted into the hydraulic cylinder and provided with a return spring, the hydraulic cylinder, the rigid pipeline and the hydraulic cavity are filled with hydraulic oil, when the hydraulic piston moves downward, the forming block is driven to horizontally extend through the hydraulic oil, and the forming is completed, when the hydraulic piston returns, the forming block is synchronously reset, An insulating block is embedded on the outer surface of the forming block, two opposite conductive pins are arranged in the insulating block and can be extended, the conductive pins are connected to an external induction circuit through lead wires, one of the conductive pins is a positive electrode, and the other is a negative electrode, and when the two conductive pins simultaneously contact the metal plate, a trigger signal is generated.

2. A forming insert for a stamping die as defined in claim 1, characterized in that: The forming block is provided with a sub-forming cavity filled with hydraulic oil, and a sub-forming block is partially inserted into the sub-forming cavity from the forming surface of the forming block, and when working, the sub-forming block and the forming block are synchronously extended to complete more complex forming processing.

3. A forming insert for a stamping die as defined in claim 1, wherein: The hydraulic cavity has a plurality of opposite hydraulic assemblies.

4. A profiled insert for a stamping die as defined in claim 1, characterized in that: One hydraulic cavity is matched with two or more forming blocks.

5. A forming insert for a stamping die as defined in claim 1, wherein: The hydraulic assembly has two or more hydraulic pistons with different initial heights.

6. A profiled insert for a stamping die as defined in claim 1, characterized in that: A hydraulic sensor is arranged in the hydraulic cavity.

7. A forming insert for a stamping die as defined in claim 1, wherein: A hydraulic sensor is arranged in the hydraulic cylinder.

8. A forming insert for a stamping die as defined in claim 1, wherein: The part of the hydraulic piston in the hydraulic assembly that extends out of the hydraulic cylinder has an adjusting part with an adjustable height.

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