A punching die for an angle steel member

Abstract

The application discloses a kind of angle steel member punch press mould, belong to profile stamping processing technical field, including upper die holder, lower die holder and movable die, upper die holder bottom end is equipped with the stamping head with conical outer convex surface, two groups of forming bodies are rotatably installed in lower die holder forming cavity.The outer convex surface of stamping head is equipped with flexible pressure body that can be arc sliding, realize folding and automatic reset by gear and torsion spring mechanism, pre-press blank in early stage of stamping, after stamping in place, complete forming surface is stored and spliced, and flexible contact avoids workpiece bruise.Forming body is configured with elastomer to realize independent opening reset.Forming body is equipped with first camber surface with coaxially arranged teeth, and the two groups of forming bodies are forced to rotate synchronously by intermeshing connecting gears.The application can ensure that the two forming bodies move synchronously, the angle steel bending symmetry is good, and the workpiece is pre-pressed, the stamping buffer and the component automatic reset function are combined, the angle steel forming quality can be improved, and the mold impact wear is reduced.

Description

Technical Field

[0001] This invention relates to the field of stamping die technology, and specifically to a stamping die for angle steel components. Background Technology

[0002] Angle steel, as a basic structural profile, is widely used in construction, machinery manufacturing, power facilities and other fields. Existing angle steel stamping dies generally adopt a direct stamping structure with a fixed concave die and a convex die, which has several technical defects: First, the vertical punching force of the punch acts directly on the blank, and the uneven distribution of lateral forming force easily leads to incomplete filling of the angle steel bending angle, large deviation of the side wall thickness, and difficulty in ensuring forming accuracy. Second, the fixed die structure restricts the loading and unloading operation space, and the blank positioning deviation easily causes asymmetrical forming, and the material handling efficiency is low. Third, the rigid die is in hard contact with the workpiece, and the stamping process easily produces indentations and scratches on the workpiece surface, affecting the appearance quality of the finished product. Fourth, after stamping, the formed parts lack an effective automatic reset mechanism, requiring manual assistance for reset, resulting in low automation.

[0003] Therefore, in order to solve the above problems, the present invention provides a stamping die for angle steel components. Summary of the Invention

[0004] To address the aforementioned technical shortcomings, the purpose of this invention is to provide a stamping die for angle steel components. This die achieves symmetrical bending through a tapered stamping head and a rotary forming body with a gear-driven synchronous transmission structure. This solves the problems of asynchronous forming, easy damage to workpieces, poor precision, and low stability associated with traditional dies, effectively improving the stamping precision of angle steel.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The present invention provides an upper mold base, a lower mold base, and a movable mold movably assembled between the upper mold base and the lower mold base.

[0006] A punching head is fixedly installed at the bottom of the upper mold base, and the bottom end of the punching head is set as an outward convex surface of a conical structure.

[0007] The lower mold base has a forming cavity inside, and two sets of oppositely arranged forming bodies are rotatably installed inside the forming cavity. The forming bodies are provided with concave surfaces for forming angle steel.

[0008] When the stamping head moves downward and applies a stamping force to the formed body, the two sets of formed bodies rotate synchronously relative to each other, so that the concave surface of the formed body and the convex surface of the stamping head cooperate with each other to form a stamping space for stamping the angle steel component.

[0009] Preferably, the bottom end of the stamping head is provided with pressure-applying bodies on both sides of the outer convex surface, which can move along the arc-shaped track. The outer convex surface is provided with a receiving groove adapted to the pressure-applying body. When the stamping head descends to the limit stamping position, the pressure-applying bodies on both sides are received into the receiving groove along the arc-shaped track, and the surface of the pressure-applying body is connected with the outer convex surface to form a complete and flat stamping mating surface.

[0010] Preferably, an arc-shaped slide rail is fixedly installed inside the pressure body, and an arc-shaped slide channel is opened inside the stamping head to slide and adapt to the arc-shaped slide rail. The arc-shaped slide rail is slidably embedded inside the arc-shaped slide channel. A drive shaft is rotatably installed inside the stamping head, and a first gear is fixedly installed on the drive shaft. The inner sidewall of the arc-shaped slide channel is provided with a tooth structure that meshes with the first gear. A drive chamber is provided inside the stamping head, and one end of the drive shaft extends into the drive chamber and is fixedly installed with a second gear.

[0011] Preferably, a limiting post is fixedly provided inside the drive chamber, and a third gear is sleeved on the outside of the limiting post. An annular gap is reserved between the third gear and the limiting post. A torsion spring is assembled in the annular gap. One end of the torsion spring is fixedly connected to the outer wall of the limiting post, and the other end is fixedly connected to the inner wall of the third gear. The third gear meshes with the gear.

[0012] Preferably, the molded body includes a first arc surface and a second arc surface, the first arc surface is provided with teeth, and a rotating shaft is inserted into the interior of the molded body, the axis of the rotating shaft coincides with the axis of the first arc surface.

[0013] Preferably, the teeth on the two first arc surfaces are respectively meshed with connecting gears, and the two connecting gears mesh with each other.

[0014] Preferably, a hydraulic cylinder is fixed on the upper mold base, and the output end of the hydraulic cylinder is connected to the moving mold.

[0015] Preferably, each of the pressure-applying bodies is connected to two arc-shaped slide rails, which are symmetrically arranged at both ends of the pressure-applying body.

[0016] Preferably, the pressure-applying body is a flexible body.

[0017] Preferably, an elastic body is internally connected to the lower mold base, and one end of the elastic body is connected to the molding body.

[0018] The beneficial effects of this invention are as follows: This stamping die uses a conical stamping head combined with a rotary forming body structure, which decomposes the vertical stamping force into a uniform horizontal lateral thrust through the conical surface, driving the two forming bodies to turn and bend in opposite directions; coupled with a double-connecting gear forced synchronous meshing transmission mechanism, it completely eliminates the problem of asynchronous rotation caused by uneven force on one side.

[0019] By setting flexible pressure bodies on both sides of the stamping head, the blank is pre-pressed and positioned in advance during the initial stamping stage to prevent the blank from slipping and shifting. After the stamping is in place, the pressure body is housed along the arc track and seamlessly connected with the outward convex surface to form a complete and continuous forming surface, achieving uniform extrusion throughout the entire area. This effectively avoids surface damage and scratches caused by rigid stamping, resulting in full bending profiles of angle steel, excellent edge and corner forming quality, and improved production efficiency and automation. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of the present invention.

[0022] Figure 2 This is a structural schematic diagram from another perspective of the present invention.

[0023] Figure 3 for Figure 2 Enlarged view of point A in the image.

[0024] Figure 4 This is an internal sectional view of the upper mold base, lower mold base, and moving mold.

[0025] Figure 5 for Figure 4 Enlarged view of section B of the seed.

[0026] Figure 6 This is a diagram showing the connection between the molded body and the fourth gear.

[0027] Figure 7 This is a side view of the present invention.

[0028] Explanation of reference numerals in the attached figures: 1. Upper mold base, 2. Lower mold base, 201. Forming cavity, 3. Moving mold, 4. Punch head, 5. Forming body, 6. Pressing body, 7. Guide shaft, 8. Arc-shaped slide rail, 9. First gear, 10. Second gear, 11. Third gear, 12. Limiting post, 13. Torsion spring, 14. Connecting gear, 15. Elastic body. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Example 1 like Figures 1 to 3 As shown, the present invention provides a stamping die for angle steel components, including an upper die base 1, a lower die base 2, and a movable die 3 movably assembled between the upper die base 1 and the lower die base 2. The upper die base 1 is used to carry the upper stamping parts, and the lower die base 2 carries the forming parts. The upper die base 1 and the lower die base 2 are connected by a guide shaft 7. The movable die 3 serves as an intermediate movable component and is slidably mounted on the guide shaft 7 to realize the relative opening and closing movement of the upper and lower dies. The stamping equipment drives the upper die base 1 and the movable die 3 to perform vertical reciprocating linear movements relative to the lower die base 2. Relying on the movable assembly relationship between the three components, the basic actions of die opening and closing stamping are completed.

[0031] A punch head 4 is fixedly mounted on the bottom of the upper die holder 1. The bottom of the punch head 4 is a tapered convex surface. The punch head 4 is the direct pressure-applying part. The tapered convex surface provides the outer forming surface for forming, and at the same time, the oblique component of the tapered surface converts the vertical downward punching force into a horizontal lateral thrust. The upper die holder 1 drives the punch head 4 to feed downward. The tapered convex surface contacts the workpiece and the two forming bodies 5 on both sides first. The vertical pressure is decomposed along the tapered surface, generating a lateral driving force, which drives the two forming bodies 5 on both sides to rotate. At the same time, the tapered surface forms the outer forming contour of the angle steel.

[0032] The lower die base 2 has a forming cavity 201 inside, and two sets of opposing forming bodies 5 are rotatably mounted inside the forming cavity 201. The forming bodies 5 are provided with concave surfaces for forming angle steel. The forming cavity 201 provides installation space to accommodate and limit the two sets of forming bodies 5. The paired forming bodies 5 are the core parts for forming the inner side of the angle steel. The concave surfaces form the inner contour surface of the angle steel workpiece. The rotatable mounting structure allows the forming bodies 5 to have the ability to rotate and swing, which is different from a fixed die. The forming bodies 5 can rotate around their respective pivot points. Under normal conditions, the two sets of forming bodies 5 are open to each other, making it easy to put in the angle steel blank to be stamped. After being subjected to the lateral force of the stamping head 4, they rotate inward and rely on the concave surfaces to fit against the inner side of the workpiece, and cooperate with the outer surface to complete the bending stamping.

[0033] When the stamping head 4 moves downward and applies a stamping force to the forming body 5, the two forming bodies 5 rotate synchronously relative to each other, so that the concave surface of the forming body 5 and the convex surface of the stamping head 4 cooperate with each other to form a stamping space for stamping the angle steel component. The stamping head 4 continues to move downward, and the conical convex surface squeezes the two forming bodies 5, pushing the two forming bodies 5 to rotate synchronously towards each other. During the rotation, the concave surface of the forming body 5 continuously approaches the convex surface of the stamping head 4, and the two converge to form a closed stamping space that matches the shape of the target angle steel. The angle steel blank placed in this space undergoes plastic deformation under the action of extrusion force, and the formed angle steel is stamped. After the stamping head 4 moves upward to release the force, the forming body 5 rotates in the opposite direction and opens up, making it easy to take out the finished product.

[0034] A hydraulic cylinder is fixed on the upper mold base 1. The output end of the hydraulic cylinder is connected to the moving mold 3, providing the active power source for mold opening and closing and stamping execution. It drives the moving mold 3, the upper mold base 1 and the stamping head 4 to complete the up and down stamping feed movement. The hydraulic cylinder is fixed on the upper mold base 1. The extension and retraction of the hydraulic cylinder drives the moving mold 3 to move vertically. The moving mold 3 drives the upper mold base 1 to move downward as a whole, so that the stamping head 4 feeds downward to perform stamping. After stamping, the hydraulic cylinder retracts, pulling the moving mold 3 and the upper mold base 1 upward. The mold opens, and the formed angle steel component can be taken out.

[0035] Example 2 like Figures 1-4 As shown, based on Embodiment 1, this embodiment sets up a flexible pressure body 6 with an arc-shaped sliding and gear torque reset structure in the stamping head 4, and works in conjunction with the elastic body 15 of the lower die base 2 to achieve workpiece pre-clamping, uniform and flat stamping forming across the entire area, mold structure buffer protection and automatic component reset, effectively improving the forming quality of angle steel and the stability of mold operation.

[0036] Both sides of the convex surface at the bottom of the stamping head 4 are provided with pressure-applying bodies 6 that can move along an arc-shaped track. A receiving groove adapted to the pressure-applying body 6 is formed on the convex surface. When the stamping head 4 descends to the ultimate stamping position, the pressure-applying bodies 6 on both sides retract along the arc-shaped track into the receiving groove, and the surface of the pressure-applying body 6 connects with the convex surface to form a complete and flat stamping mating surface. Movable pressure-applying bodies 6 are added to both sides of the conical surface of the stamping head 4. In the initial stage of stamping, the pressure-applying bodies 6 extend outward to expand the contact range; after stamping to the desired position, they retract and connect with the convex surface. As the stamping head 4 moves downwards, the pressure body 6 extends and contacts both sides of the angle steel billet in advance, pre-pressing the sides of the workpiece. When the stamping head 4 reaches the lowest limit stamping position, the pressure body 6 retracts inward along the arc track and slides into the receiving groove. After retraction, the outer surface of the pressure body 6 is seamlessly connected with the original convex surface of the stamping head 4, forming a continuous and complete forming mating surface, achieving uniform extrusion of the workpiece throughout, ensuring the integrity of the angle steel bending profile and the fullness of the corner forming.

[0037] The pressure body 6 is a flexible body. The flexible pressure body 6 can adaptively fit the surface of the angle steel billet, avoiding the damage and scratches on the workpiece surface caused by rigid extrusion. The stamping process can buffer the impact load. When the stamping head 4 moves downward, the pressure body 6 is the first to contact the angle steel workpiece.

[0038] An arc-shaped slide rail 8 is fixedly installed inside the pressure body 6. An arc-shaped slide track is opened inside the stamping head 4 to slide and adapt to the arc-shaped slide rail 8. The arc-shaped slide rail 8 is slidably embedded in the arc-shaped slide track. A drive shaft is rotatably installed inside the stamping head 4. A first gear 9 is fixedly installed on the drive shaft. The inner wall of the arc-shaped slide track is provided with a tooth structure that meshes with the first gear 9. A drive chamber is provided inside the stamping head 4. One end of the drive shaft extends into the drive chamber and a second gear 10 is fixedly installed thereon. This provides a guide structure for the arc-shaped movement of the pressure body 6. At the same time, a gear transmission mechanism is provided to provide a power transmission path for the extension and retraction of the pressure body 6. This constrains the pressure body 6 to move only along the arc-shaped trajectory and prevents it from deviating and jamming. The arc-shaped slide rail 8 and the arc-shaped slide track work together to limit the pressure body 6 to slide only along the preset arc-shaped path; power is input to the second gear 10, which drives the drive shaft to rotate, and the first gear 9 on the drive shaft rotates synchronously; the first gear 9 meshes with the teeth of the side wall of the arc-shaped slide track, converting the rotational motion of the drive shaft into the arc-shaped sliding motion of the arc-shaped slide rail 8, and finally driving the pressure body 6 to achieve the extension / retraction action.

[0039] A limiting post 12 is fixedly installed inside the drive chamber. A third gear 11 is sleeved on the outside of the limiting post 12, and an annular gap is reserved between the third gear 11 and the limiting post 12. A torsion spring 13 is installed in the annular gap. One end of the torsion spring 13 is fixedly connected to the outer wall of the limiting post 12, and the other end is fixedly connected to the inner wall of the third gear 11. The third gear 11 meshes with the gear to provide automatic reset power for the pressure body 6. After the stamping is completed and the power is removed, the transmission mechanism is driven to rotate in reverse by the torsion spring 13, so that the pressure body 6 automatically extends outward and resets, preparing for the next stamping cycle. The limiting post 12 The radial position of the third gear 11 is limited, while providing a mounting point for the torsion spring 13. External power drives the second gear 10 to rotate, which in turn drives the third gear 11 to rotate. The third gear 11 twists the torsion spring 13, and the spring accumulates elastic potential energy. When the stamping ends, the external driving force is released. The torsion spring 13 releases its stored energy and drives the third gear 11, the second gear 10, and the drive shaft to rotate in the opposite direction. Through gear meshing, the arc-shaped slide rail 8 is driven to slide in the opposite direction, pushing the pressure body 6 stored in the groove outward and resetting it. The limiting post 12 ensures that the third gear 11 rotates smoothly and does not eccentrically wobble.

[0040] Each pressure body 6 is connected to two arc-shaped slide rails 8. The two arc-shaped slide rails 8 are symmetrically arranged at both ends of the pressure body 6 to provide symmetrical guidance and support at both ends of the pressure body 6, improve the balance of the pressure body 6 during the sliding process, prevent the pressure body 6 from tilting or getting stuck on one side, and ensure that the pressure body 6 moves smoothly (arc sliding) and the forming force is uniform.

[0041] The lower die base 2 has an internal connection of an elastic body 15, one end of which is connected to the forming body 5, providing the resetting power for the forming body 5. After the stamping force is released, the two sets of forming bodies 5 are driven to automatically rotate in opposite directions and open, which facilitates the removal of parts and placement of the next batch of blanks. The stamping stage provides a buffer to absorb the impact of the rotation of the forming body 5 and reduce the impact load on the rotating shaft and tooth transmission structure. Under normal conditions, the forming body 5 is kept in the open waiting position to ensure sufficient feeding space.

[0042] Example 3 like Figures 1-7 As shown, based on Embodiment 1 and Embodiment 2, this embodiment uses a molding body 5 with coaxial rotating shaft teeth and a double connecting gear 14 meshing transmission structure to achieve forced synchronous symmetrical rotation of the two molding bodies 5, completely solving the problem of asynchronous rotation of the molding bodies 5 and ensuring the symmetry and dimensional accuracy of the angle steel bending forming.

[0043] The forming body 5 includes a first arc surface and a second arc surface. The first arc surface has teeth, and a rotating shaft is inserted inside the forming body 5. The axis of the rotating shaft coincides with the axis of the first arc surface, defining the rotation reference and transmission surface of the forming body 5. The rotating shaft serves as the rotation fulcrum of the forming body 5. The teeth on the first arc surface are used for synchronous transmission. The second arc surface is the concave forming surface described in claim 1 for forming angle steel. The forming body 5 rotates and oscillates around the rotating shaft, with the axis of the rotating shaft coinciding with the center of the first arc surface, ensuring a constant meshing distance between the teeth on the first arc surface during rotation. When the stamping head 4 presses down to push the forming body 5 to oscillate, the first arc surface follows the forming body 5 and rotates synchronously around the rotating shaft, relying on the surface teeth to transmit rotational torque, providing a structural basis for the synchronous opposite rotation of the two forming bodies 5.

[0044] The teeth on the two first arc surfaces are respectively connected to connecting gears 14. The two connecting gears 14 mesh with each other to achieve mechanically forced synchronous rotation of the left and right forming bodies 5, eliminating the problems of asynchronous rotation, workpiece force deviation, and asymmetrical bending of angle steel caused by unilateral force. One side of the forming body 5 rotates under the thrust of the stamping head 4, and its first arc surface teeth drive the corresponding connecting gear 14 to rotate; the two connecting gears 14 mesh with each other, and the torque is transmitted to the other side connecting gear 14, which then drives the other forming body 5 to rotate synchronously in the opposite direction; ultimately ensuring that the two forming bodies 5 always synchronously close towards each other and synchronously open in the opposite direction, the forming cavities on both sides are symmetrical, and the bending dimensions of the angle steel are consistent on both sides.

[0045] Working principle: The angle steel component stamping die includes an upper die base 1, a lower die base 2, a moving die 3, and a hydraulic cylinder, forming a basic motion structure. The die opening and closing stamping cycle is achieved by hydraulic drive. In the initial state, the two sets of forming bodies 5 within the forming cavity 201 of the lower die base 2 remain open under the action of the elastic body 15, facilitating blank placement; the flexible pressure bodies 6 on both sides of the stamping head 4 extend under the action of the torsion spring 13, and are in a pre-pressing state.

[0046] During the stamping operation, the hydraulic cylinder drives the stamping head 4 downwards. The flexible pressure-applying bodies 6 on both sides first conform to the two sides of the blank to complete the pre-clamping, which can adaptively conform to the workpiece, buffer the stamping impact, and avoid the workpiece being crushed or scratched. The symmetrical arc-shaped slide rails 8 at both ends ensure that the pressure-applying bodies 6 slide smoothly without jamming. The conical outer convex surface of the stamping head 4 converts the vertical stamping force into a horizontal lateral thrust, pushing the forming body 5 to rotate inwards; relying on the meshing structure of the teeth of the forming body 5 and the double connecting gear 14, the two forming bodies 5 are forced to rotate synchronously to ensure the symmetry of the forming cavity.

[0047] When the stamping head 4 descends to its limit position, the gear transmission mechanism drives the pressure body 6 to retract along the arc track into the receiving groove, connecting with the outer convex surface of the stamping head 4 to form a complete and flat stamping surface. This, together with the inner concave surface of the forming body 5, encloses the forming space, allowing the blank to undergo uniform plastic deformation and completing the high-precision angle steel bending. After stamping, the hydraulic cylinder moves upward to release the force, and the elastic body 15 of the lower die holder 2 pushes the forming body 5 to open and reset. At the same time, the torsion spring 13 releases its stored energy to drive the pressure body 6 to extend and reset, facilitating part removal and preparing for the next stamping cycle, effectively improving the forming quality and mold operation stability.

[0048] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A stamping die for angle steel components, comprising an upper die base (1), a lower die base (2), and a movable die (3) movably assembled between the upper die base (1) and the lower die base (2), characterized in that: The upper mold base (1) is fixedly installed with a punch head (4) at the bottom end, and the bottom end of the punch head (4) is set as a conical structure with an outward convex surface; The lower mold base (2) has a forming cavity (201) inside, and two sets of oppositely arranged forming bodies (5) are rotatably installed inside the forming cavity (201). The forming body (5) is provided with an inner concave surface for forming angle steel. When the stamping head (4) moves downward and applies a stamping force to the forming body (5), the two sets of forming bodies (5) rotate synchronously relative to each other so that the concave surface of the forming body (5) and the convex surface of the stamping head (4) cooperate with each other to form a stamping space for stamping forming of angle steel components.

2. The stamping die for angle steel components as described in claim 1, characterized in that: The bottom of the stamping head (4) is provided with pressure-applying bodies (6) on both sides of the outer convex surface that can move along the arc track. The outer convex surface is provided with a receiving groove that matches the pressure-applying body (6). When the stamping head (4) descends to the limit stamping position, the pressure-applying bodies (6) on both sides are received into the receiving groove along the arc track, and the surface of the pressure-applying body (6) is connected with the outer convex surface to form a complete and flat stamping mating surface.

3. The angle steel component stamping die as described in claim 2, characterized in that: An arc-shaped slide rail (8) is fixedly installed inside the pressure body (6). An arc-shaped slide rail (8) is provided inside the stamping head (4) to slide and adapt to the arc-shaped slide rail (8). The arc-shaped slide rail (8) is slidably embedded inside the arc-shaped slide rail. A drive shaft is rotatably installed inside the stamping head (4). A first gear (9) is fixedly installed on the drive shaft. A tooth structure that meshes with the first gear (9) is provided on the inner side wall of the arc-shaped slide rail. A drive chamber is provided inside the stamping head (4). One end of the drive shaft extends into the drive chamber and a second gear (10) is fixedly installed.

4. The stamping die for angle steel components as described in claim 3, characterized in that: The drive chamber is fixedly provided with a limiting post (12), and a third gear (11) is sleeved on the outside of the limiting post (12). An annular gap is reserved between the third gear (11) and the limiting post (12). A torsion spring (13) is installed in the annular gap. One end of the torsion spring (13) is fixedly connected to the outer wall of the limiting post (12), and the other end is fixedly connected to the inner wall of the third gear (11). The third gear (11) is meshed with the gear.

5. The stamping die for angle steel components as described in claim 1, characterized in that, The molded body (5) includes a first arc surface and a second arc surface. The first arc surface is provided with teeth. A rotating shaft is inserted into the interior of the molded body (5). The axis of the rotating shaft coincides with the axis of the first arc surface.

6. The stamping die for angle steel components as described in claim 5, characterized in that, The teeth on the two first arc surfaces are respectively connected to connecting gears (14), and the two connecting gears (14) mesh with each other.

7. The angle steel component stamping die as described in claim 1, characterized in that, A hydraulic cylinder is fixed on the upper mold base (1), and the output end of the hydraulic cylinder is connected to the moving mold (3).

8. A stamping die for angle steel components as described in claim 2, characterized in that, Each of the pressure-applying bodies (6) is connected to two arc-shaped slide rails (8), which are symmetrically arranged at both ends of the pressure-applying body (6).

9. A stamping die for angle steel components as described in claim 2, characterized in that, The pressure-applying body (6) is a flexible body.

10. A stamping die for angle steel components as described in claim 1, characterized in that, An elastomer (15) is connected inside the lower mold base (2), and one end of the elastomer (15) is connected to the molding body (5).

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