A special-shaped steel wire drawing forming tool

Abstract

The utility model belongs to the technical field of steel wire drawing, concretely relates to a special-shaped steel wire drawing forming tool, and proposes a special-shaped steel wire drawing forming tool which is reasonable in structure, simple and convenient to operate and high in efficiency and precision, aims at realizing high-precision processing of special-shaped steel wire through optimization of tool design. A special-shaped steel wire drawing forming tool, including tool seat, rotating assembly and lifting assembly, rotating assembly sets up in one side of tool seat top, lifting assembly sets up in rotating assembly top, the other side of tool seat top is equipped with die holder through bolt mounting, the top of die holder is equipped with die cavity, the bottom of lifting assembly is equipped with drawing forming die for inserting in die cavity in equidistance of outer periphery, is equipped with drawing hole in drawing forming die.

Description

Technical Field

[0001] This utility model belongs to the field of steel wire drawing technology, specifically relating to a tooling for drawing and forming irregular steel wires. Background Technology

[0002] In modern industrial manufacturing, the processing and forming of profiled steel wires has wide applications, especially in industries such as automotive, construction, and aerospace, where higher requirements are placed on the shape accuracy and surface quality of profiled steel wires. Traditional profiled steel wire drawing processes typically rely on fixed dies and unidirectional drawing operations. While this method can meet basic processing needs, it has several shortcomings in practical applications. For example, the structural design of traditional tooling equipment is relatively simple, making it difficult to efficiently form complex-shaped steel wires, and the process of changing dies is cumbersome, leading to low production efficiency. Furthermore, existing drawing forming equipment often lacks flexibility and cannot be quickly adjusted to adapt to processing requirements of different specifications and shapes, limiting its application in multi-variety, small-batch production. Existing drawing forming fixtures are prone to inaccurate die alignment during operation, which not only affects product processing accuracy but may also damage the die or equipment, increasing production costs. Furthermore, due to a lack of automation and intelligent design, traditional fixtures rely heavily on manual labor during operation, further reducing production efficiency and consistency. Especially when multiple drawing operations or multi-angle adjustments are required, existing equipment struggles to achieve efficient continuous operation, thus hindering the improvement of overall process technology.

[0003] To address the aforementioned problems, there is an urgent need for a non-standard steel wire drawing and forming fixture that can improve processing accuracy, enhance operational flexibility, and reduce manual intervention. This fixture should possess automated lifting and rotation functions to facilitate the efficient forming of complex-shaped steel wires, and should also have a convenient mold changing mechanism to adapt to diverse production needs. Developing a novel non-standard steel wire drawing and forming fixture by improving upon the shortcomings of existing technologies will help promote technological progress and improve production efficiency in related industries. Therefore, this non-standard steel wire drawing and forming fixture is proposed. Summary of the Invention

[0004] In view of the shortcomings of the above-mentioned background technology, the purpose of this utility model is to provide a tooling for drawing and forming irregular steel wires. It addresses the problems of insufficient precision, complex operation and low efficiency in the existing process of drawing and forming irregular steel wires, and proposes a tooling for drawing and forming irregular steel wires that is reasonable in structure, easy to operate and highly efficient and accurate. It aims to achieve high-precision processing of irregular steel wires by optimizing the tooling design.

[0005] To solve the above-mentioned technical problems, the purpose of this utility model is achieved as follows: A tooling for drawing and forming shaped steel wire includes a tooling base, a rotating assembly, and a lifting assembly. The tooling base serves as the foundation platform for the entire device, supporting other components and ensuring the stability of the overall structure. The rotating assembly is located on one side of the top of the tooling base and provides precise rotational power via a servo motor, transmitting the rotational motion to the lifting assembly. The lifting assembly is located on top of the rotating assembly and controls the lifting motion of the drawing die, thereby realizing the drawing and forming operation of the shaped steel wire. A die base is bolted to the other side of the top of the tooling base. The die base has a die cavity on its top to accommodate the drawing die. Multiple sets of drawing dies are evenly spaced on the outer periphery of the bottom of the lifting assembly. The drawing die can be inserted into the die cavity and has a drawing hole through it to guide the shaped steel wire through and complete the drawing and forming process.

[0006] Based on the above scheme and as a preferred embodiment, the lifting assembly includes a top plate, extension plates, an electric push rod, and a mounting flange. Several sets of extension plates are evenly distributed around the outer perimeter of the top plate, and an electric push rod is fixedly mounted at the top of each set of extension plates. The bottom output end of the electric push rod passes through the extension plate and is connected to the mounting flange. The mounting flange is fixedly connected to the bolt holes on the top of the drawing die using bolts, thereby enabling rapid installation and disassembly of the drawing die. This design ensures convenient die replacement through mechanical connection while guaranteeing the robustness of the connection.

[0007] Based on the above scheme and as a preferred embodiment, the rotating assembly includes a servo motor, a support plate, and a brake. The brake is installed at the drive end of the servo motor to provide precise power control during rotation and ensure safe stopping. A support plate is mounted on the top of the servo motor's drive shaft, and the support plate is bolted to the top plate, thereby transmitting the rotational motion to the lifting assembly. Through precise control of the servo motor, accurate adjustment of the drawing die angle can be achieved, meeting the processing requirements of various shaped steel wires.

[0008] Based on the above scheme and as a preferred embodiment, the bottom outer periphery of the drawing die is provided with an inwardly tapering chamfer to facilitate easier insertion of the drawing die into the die cavity. This chamfer design reduces the friction between the die and the die cavity, improving operational convenience. Furthermore, through holes corresponding to the drawing holes are provided at both ends of the die base to guide the shaped steel wire through, reducing friction and resistance during the drawing process and thus improving drawing efficiency.

[0009] Based on the above-mentioned solutions and as preferred embodiments, the technical solution of this utility model emphasizes detailed design in its specific implementation. For example, the die base is made of high-strength material, and its surface is hardened to enhance wear resistance. The inner wall of the drawing hole is designed as a smooth curved surface to reduce the friction coefficient of the shaped steel wire during the drawing process. In addition, the coaxiality error between the perforations at both ends of the die base and the drawing hole is less than 0.1 mm, thereby ensuring that the shaped steel wire will not deviate or deform during passage.

[0010] Based on the above scheme and as a preferred option: the electric push rod in the lifting assembly is driven by a stepper motor, with a stroke control accuracy of 0.2 mm, which can precisely adjust the descent depth of the drawing die according to actual needs. The bolt connection between the mounting flange and the drawing die uses hexagonal head bolts, with a tightening torque set to 0.2 Nm, ensuring a firm connection while avoiding damage to the die due to overtightening.

[0011] Based on the above scheme and as a preferred embodiment, the tooling base is equipped with a shock-absorbing pad at its bottom to absorb vibrations generated during the drawing process and improve the stability of equipment operation. The shock-absorbing pad is made of polyurethane material with a hardness range of Shore A to A, exhibiting good compressive strength and resilience. Furthermore, the bottom of the tooling base is also equipped with multiple locating pin holes for quick positioning and installation with other equipment, facilitating modular arrangement on the production line.

[0012] The outstanding and beneficial technical effects of this utility model compared to the prior art are: This utility model's non-standard steel wire drawing and forming fixture, compared with existing technologies, achieves precise drawing and forming of non-standard steel wires through the coordinated work of a servo motor and an electric push rod, ensuring the dimensional and shape accuracy of the product. The chamfered design at the bottom of the drawing die and the bolted connection method significantly improve the ease of operation, reducing die change time to less than a minute. The combination of the lifting and rotating components makes the drawing process more efficient, shortening the single drawing cycle to less than a second, significantly improving production efficiency.

[0013] The design of the tooling base and die base fully considers structural strength and stability, enabling them to withstand the forces and vibrations during the drawing process and ensuring long-term stable operation of the equipment. In summary, this invention provides a structurally sound, easy-to-operate, and highly efficient tooling for drawing and forming irregularly shaped steel wires, suitable for drawing and forming various irregularly shaped steel wires, and has broad application prospects. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall design of this utility model; Figure 2 This is a schematic diagram of the tooling base of this utility model; Figure 3This is a schematic diagram of the drawing die of this utility model; Reference numerals: Tooling base 1; mold base 11; mold cavity 12; drawing forming mold 13; drawing hole 14; through hole 15; screw hole 16; rotating assembly 2; servo motor 21; support plate 22; lifting assembly 3; top plate 31; extension plate 32; electric push rod 33; mounting flange 34. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings and specific embodiments; This embodiment provides a tooling for drawing and forming irregularly shaped steel wires, including a tooling base 1, a rotating assembly 2, and a lifting assembly 3. The tooling base 1, serving as the foundation platform of the entire device, is made of high-strength steel plate and has shock-absorbing pads at its bottom. These pads are made of polyurethane material with a hardness range of Shore A80 to A90, effectively absorbing vibrations generated during the drawing process and ensuring the stability of the equipment operation. The bottom of the tooling base 1 also has multiple positioning pin holes for quick positioning and installation with other equipment, facilitating modular arrangement on the production line and significantly improving the applicability and ease of operation of the equipment. The rotating assembly 2 is located on one side of the top of the tooling base 1, and the lifting assembly 3 is installed on top of the rotating assembly 2, thus forming a complete drawing and forming system. A die base 11 is bolted to the other side of the top of the tooling base 1. The die base 11 has a die cavity 12 on its top to accommodate the drawing die 13. The die base 11 is made of hardened high-strength steel with a surface hardness of HRC50 or higher, capable of withstanding the high pressure and friction during the drawing process and extending its service life. The die base 11 has through holes 15 at both ends. The through holes 15 and the drawing holes 14 are coaxial with an error of less than 0.05 mm to ensure that the shaped steel wire will not shift or deform during the drawing process.

[0016] The structure of lifting component 3 is as follows Figure 1 As shown, the drawing die 13 includes a top plate 31, extension plates 32, an electric push rod 33, and a mounting flange 34. Multiple sets of extension plates 32 are evenly distributed around the outer periphery of the top plate 31. An electric push rod 33 is fixedly mounted on the top of each extension plate 32. The electric push rod 33 is driven by a stepper motor, with a stroke control accuracy of 0.1 mm, allowing for precise adjustment of the descent depth of the drawing die 13 according to actual needs. The bottom output end of the electric push rod 33 passes through the extension plate 32 and is connected to the mounting flange 34. The mounting flange 34 is fixedly connected to the bolt holes 16 on the top of the drawing die 13 using hexagonal head bolts. The bolt tightening torque is set to 20 Nm, ensuring a secure connection while preventing damage to the die due to overtightening. This design makes the installation and disassembly of the drawing die 13 more convenient, reducing replacement time to less than 3 minutes and significantly improving production efficiency.

[0017] The structure of rotating component 2 is as follows Figure 1As shown, the assembly includes a servo motor 21, a support plate 22, and a brake. The brake is mounted on the drive end of the servo motor 21, providing precise power control during rotation and ensuring safe stopping. The support plate 22 is mounted on the top of the drive shaft of the servo motor 21, and is bolted to the top plate 31, transmitting rotational motion to the lifting assembly 3. The servo motor 21, through programmable control, can achieve precise angle adjustment to meet the processing requirements of irregularly shaped steel wires. For example, when processing irregularly shaped steel wires with complex cross-sectional shapes, the servo motor 21 can automatically adjust the angle of the drawing die 13 according to a preset program to ensure the shape accuracy of the irregularly shaped steel wire.

[0018] The structure of the drawing die 13 is as follows Figure 3 As shown, the bottom outer periphery is provided with an inwardly tapering chamfer. The chamfer design reduces the friction between the die and the die cavity 12, making it easier to insert the drawing die 13 into the die cavity 12 and improving the ease of operation. A drawing hole 14 is provided through the interior of the drawing die 13. The inner wall of the drawing hole 14 is designed as a smooth curved surface, reducing the coefficient of friction of the shaped steel wire during the drawing process and improving drawing efficiency. The size and shape of the drawing hole 14 can be customized according to the requirements of the shaped steel wire to be processed, to meet the processing needs of different specifications of shaped steel wire.

[0019] The working principle of this utility model is as follows: S1 The shaped steel wire to be processed is passed through the through holes 15 at both ends of the die base 11 and introduced into the drawing hole 14, ensuring that the shaped steel wire and the drawing hole 14 remain coaxial; S2 The servo motor 21 is started, which drives the lifting component 3 to rotate through the rotating component 2, adjusting the angle of the drawing forming die 13 to adapt to the shape requirements of the shaped steel wire; S3 The electric push rod 33 is started, which controls the drawing forming die 13 to descend through the lifting component 3, so that it is inserted into the die cavity 12, completing the drawing forming of the shaped steel wire; S4 After the drawing is completed, the electric push rod 33 drives the drawing forming die 13 to rise, and the processed shaped steel wire is taken out. Throughout the drawing process, the shock-absorbing pad of the tooling base 1 absorbs the vibration generated during the operation of the equipment, ensuring the stability of the drawing process. In addition, the hardened surface of the die base 11 and the high-precision through hole 15 design further reduce the friction and resistance of the shaped steel wire during the drawing process, significantly improving the drawing efficiency.

[0020] To verify the practical effectiveness of this invention, multiple experiments were conducted. Three different shapes of profiled steel wire were selected for drawing and forming: rectangular cross-section steel wire, elliptical cross-section steel wire, and trapezoidal cross-section steel wire. Experimental results showed that the tooling of this invention can shorten the single drawing cycle to less than 10 seconds, significantly improving production efficiency. Simultaneously, the chamfered design and bolted connection of the drawing die 13 shortened the die replacement time to less than 3 minutes, further enhancing operational convenience. During processing, the dimensions and shape accuracy of the profiled steel wire met the design requirements, proving that the technical solution of this invention has high reliability and practicality.

[0021] In practical applications, the shaped steel wire drawing and forming fixture of this invention can be widely used in the metal processing industry, especially in scenarios requiring high-precision shaped steel wire processing. For example, in the automotive manufacturing field, shaped steel wire is often used to manufacture key components such as springs and suspension systems, requiring extremely high dimensional and shape accuracy. This fixture, through the coordinated operation of the servo motor 21 and the electric push rod 33, achieves precise drawing and forming of shaped steel wire, ensuring high product quality. Furthermore, the design of the fixture base 1 and the die base 11 fully considers structural strength and stability, capable of withstanding forces and vibrations during the drawing process, ensuring long-term stable operation of the equipment.

[0022] In summary, this utility model provides a structurally sound, easy-to-operate, and highly efficient tooling for drawing and forming irregularly shaped steel wires. It is suitable for drawing and forming various irregularly shaped steel wires and has broad application prospects. Through optimized structural design and collaborative components, it achieves efficient and precise processing of irregularly shaped steel wires, significantly improving production efficiency and product quality.

[0023] In the description of this utility model, it should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. In this utility model, unless otherwise expressly specified and limited, the terms "installation," "setting," "connection," "fixing," and "screw-on," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection. The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Therefore, all equivalent changes made to the structure, shape, and principle of the present utility model should be covered within the scope of protection of the present utility model.

Claims

1. A tooling for drawing and forming irregularly shaped steel wires, characterized in that, It includes a tooling base, a rotating component, and a lifting component. The rotating component is located on one side of the top of the tooling base, and the lifting component is located on top of the rotating component. A mold base is installed on the other side of the top of the tooling base by bolts. A mold cavity is opened on the top of the mold base. A drawing forming mold for inserting into the mold cavity is arranged at equal intervals on the outer periphery of the bottom of the lifting component. A drawing hole is opened through the drawing forming mold.

2. The special-shaped steel wire drawing and forming tooling according to claim 1, characterized in that, The lifting assembly includes a top plate, and several sets of extension plates are provided on the outer periphery of the top plate. An electric push rod is fixedly installed on the top of the end of the extension plate. The bottom output end of the electric push rod passes through the extension plate and is connected to a mounting flange. The top of the drawing forming die has a screw hole corresponding to the mounting flange. The mounting flange is installed and fixed to the screw hole of the drawing forming die by bolts.

3. The special-shaped steel wire drawing and forming tooling according to claim 2, characterized in that, The rotating assembly includes a servo motor with a brake mounted on the drive end, a support plate mounted on the top of the drive shaft of the servo motor, a top plate located at the top of the support plate, and the top plate and the support plate are fixed together by bolts.

4. The special-shaped steel wire drawing and forming tooling according to claim 3, characterized in that, The bottom outer periphery of the drawing die has an inwardly tapered chamfer to facilitate easier insertion of the drawing die into the die cavity.

5. The special-shaped steel wire drawing and forming tooling according to claim 4, characterized in that, The mold base has through holes at both ends that correspond to the drawing holes.

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