A stamping straightening device for profile steel components

Abstract

This invention belongs to the field of profile straightening technology, specifically referring to a stamping straightening device for profile steel components. It includes an independent contouring component, a caliper fixing component, a dual-chamber hydraulic component, a caliper pressurizing component, a lifting component, a gantry frame, and a conveying component. The independent contouring component is located below the lifting component, which is mounted on the gantry frame. The caliper fixing component is symmetrically arranged on the sides of the independent contouring component. The dual-chamber hydraulic component is located on the independent contouring component, and the caliper pressurizing component is located within the dual-chamber hydraulic component. The conveying component is located below the independent contouring component. This invention employs multiple independent contouring columns with uniform pressure distribution to distribute the extrusion force. Combined with steerable hinged feet, it achieves uniform extrusion of curved workpieces. Furthermore, after contouring is completed, it automatically locks the positions of each contouring column, thereby preventing deformation at weak points in the profile.

Description

Technical Field

[0001] This invention belongs to the field of profile straightening technology, specifically referring to a stamping straightening device for profile steel components. Background Technology

[0002] Steel profiles generally refer to profiles with long lengths and constant cross-sections. Due to their long length, these profiles are prone to bending due to stress release or their own weight during long-term storage or transportation. Before use, these small-amplitude bends need to be corrected. Current straightening devices mostly use roller extrusion for cold straightening. Although this structure is simple, it is only suitable for profiles with a flat top.

[0003] If the top of the profile is a non-planar surface such as a curved or stepped surface, the contact area between the extrusion punch and the workpiece will be greatly reduced, or even turn into line contact or point contact. Under the action of this local pressure, it is very likely that the bending of the profile will not be corrected before the problem of local pitting occurs.

[0004] Therefore, for the straightening of such non-planar profiles, a straightening device that can distribute the pressure needs to be designed. Summary of the Invention

[0005] In view of the above situation and to overcome the defects of the prior art, the present invention provides a stamping straightening device for profile steel components. This solution adopts multiple independent conforming columns with uniform pressure pushing to distribute the extrusion pressure, and with the hinged feet that can turn, it can achieve uniform extrusion of curved workpieces; however, even if the pressure of each conforming column is the same, due to the different strengths of different parts of the profile, there may still be a problem that the bending of the profile has not been corrected and local deformation occurs at the edge first.

[0006] To completely solve this problem, the present invention proposes a caliper fixing component and a dual-chamber hydraulic component. Through a closed hydraulic transmission method, it can automatically lock the position of each shaping column after the shaping is completed, thereby avoiding the problem of deformation at the weak points of the profile.

[0007] The technical solution adopted by this invention is as follows: This invention proposes a stamping straightening device for profile steel components, including an independent contouring component, a caliper fixing component, a dual-chamber hydraulic component, a caliper pressurizing component, a lifting component, a gantry frame, and a conveying component. The independent contouring component is located below the lifting component, the lifting component is located on the gantry frame, the caliper fixing component is symmetrically arranged on the sides of the independent contouring component, the dual-chamber hydraulic component is located on the independent contouring component, the caliper pressurizing component is located in the dual-chamber hydraulic component, and the conveying component is located below the independent contouring component.

[0008] The independent contouring component includes a brake seat, a contouring column, and a hinged foot. The brake seat has an array of through longitudinal holes. The contouring column is engaged and slidably disposed in the longitudinal holes. The hinged foot is hinged to the bottom of the contouring column.

[0009] Before applying pressure, multiple independent contour columns can be used to contour the top surface of the profile, thereby applying pressure evenly to the extrusion position and avoiding the problem of local deformation of the profile caused by uneven force.

[0010] Furthermore, the caliper fixing assembly includes a caliper seat, a piston caliper, and a hydraulic pipe. The brake seat has symmetrical transverse grooves on both sides. The caliper seat is fixedly connected to the transverse grooves. The piston caliper is engaged and slidably disposed in the caliper seat. One end of the hydraulic pipe is connected to the caliper seat.

[0011] After the profile is formed, the piston caliper can lock the relative position of each set of profile columns, thereby avoiding local deformation due to the different strengths of different parts of the profile during the pressure application process.

[0012] Furthermore, the dual-chamber hydraulic assembly includes a hydraulic box and a hydraulic cylinder. The hydraulic box is fixedly connected to the top of the brake seat. The top of the contour column is located inside the hydraulic box. A cylindrical portion is provided above the hydraulic box. The hydraulic cylinder is fixedly connected to the top of the cylindrical portion. The hydraulic cylinder and the hydraulic box are connected.

[0013] Preferably, the dual-chamber hydraulic assembly further includes a lower piston, which is engaged and slidably disposed in a hydraulic cylinder. The inner wall of the hydraulic cylinder is provided with a stepped ring, and the lower piston is located below the stepped ring.

[0014] Even if the protrusions of each contoured column are different, the hydraulic pressure they experience in the hydraulic box is the same. Through the technology of equalizing pressure in the same cavity, not only can multiple hard rubber blocks simultaneously press against the workpiece, but the downward pressure on each part can also be the same during the correction.

[0015] Furthermore, the caliper booster assembly includes an upper piston and a return spring. The upper piston is engaged and slidably disposed in the hydraulic cylinder. The upper piston is located above the stepped ring, and the return spring is disposed between the lower piston and the upper piston.

[0016] By moving the lower and upper pistons closer together and further apart, the extension and retraction of the piston calipers can be controlled synchronously, thereby achieving the technical effect of "automatically locking each contour post when pressure is applied and automatically unlocking when no pressure is applied".

[0017] Preferably, the other end of the hydraulic pipe is connected to the hydraulic cylinder, and the hydraulic pipe is located between the lower piston and the upper piston.

[0018] As a further preferred embodiment of the present invention, the independent contouring component further includes a hard rubber block, which is fixedly attached to the underside of the hinge foot.

[0019] Furthermore, the lifting assembly includes a lifting nut, a lifting screw, and a guide rod. The lifting nut is rotatably mounted in the gantry frame, and there is a threaded transmission between the lifting screw and the lifting nut. The bottom of the lifting screw is fixed to the upper piston, and the guide rod is fixed to both ends of the hydraulic box. The guide rod is engaged and slidably mounted in the gantry frame.

[0020] When the lifting nut rotates, the longitudinal movement of the lifting screw controls the lifting and lowering of the upper piston, thereby controlling the shaping, locking, and pressing processes of this device.

[0021] Furthermore, the conveying assembly includes a frame, a roller seat, and conveying rollers, with the roller seat mounted on the frame and the conveying roller array mounted on the roller seat.

[0022] Preferably, the conveying assembly further includes a photoelectric gate, which is disposed on the roller seat.

[0023] The photoelectric gate can sense the correction range of the workpiece, thus avoiding overcorrection.

[0024] The beneficial effects achieved by the present invention using the above structure are as follows:

[0025] (1) Before applying pressure, multiple independent contour columns can be used to contour the top surface of the profile, thereby applying pressure evenly to the extrusion position and avoiding the problem of uneven force causing local deformation of the profile.

[0026] (2) After the contouring of the profile column is completed, the relative positions of each group of profile columns can be locked by the piston caliper, thereby avoiding the problem of local deformation due to the different strengths of different parts of the profile during the pressure process.

[0027] (3) Even if the extension of each contour column is different, the hydraulic pressure it receives in the hydraulic box is the same. By using the pressure equalization technology in the same cavity, not only can multiple hard rubber blocks press against the workpiece at the same time, but also the downward pressure of each part during the correction is the same.

[0028] (4) By moving the lower piston and the upper piston closer and further apart, the extension and retraction of the piston caliper can be controlled synchronously, thereby achieving the technical effect of "automatically locking each contour post when pressure is applied and automatically unlocking when no pressure is applied".

[0029] (5) When the lifting nut rotates, the lifting piston can be controlled by the longitudinal movement of the lifting screw, thereby controlling the shaping, locking and pressing processes of this device.

[0030] (6) The photoelectric gate can sense the correction range of the workpiece to avoid overcorrection. Attached Figure Description

[0031] Figure 1 This is a perspective view of a stamping straightening device for profile steel components proposed in this invention;

[0032] Figure 2 This is a front view of a stamping straightening device for profile steel components proposed in this invention;

[0033] Figure 3 This is a left view of a stamping straightening device for profile steel components proposed in this invention;

[0034] Figure 4 for Figure 2 A cross-sectional view along the cutting line AA;

[0035] Figure 5 for Figure 4 A cross-sectional view along the cutting line BB;

[0036] Figure 6 for Figure 4 A magnified view of a section at point I;

[0037] Figure 7 for Figure 5 Enlarged view of a section at point II;

[0038] Figure 8 for Figure 2 Enlarged view of a section at point III;

[0039] Figure 9 for Figure 1 A magnified view of a section at point IV.

[0040] Among them, 1. Independent contouring component, 2. Caliper fixing component, 3. Dual-chamber hydraulic component, 4. Caliper booster component, 5. Lifting component, 6. Gantry frame, 7. Conveying component, 11. Brake seat, 12. Conveying column, 13. Hinge foot, 14. Hard rubber block, 21. Caliper seat, 22. Piston caliper, 23. Hydraulic pipe, 31. Hydraulic box, 32. Hydraulic cylinder, 33. Lower piston, 41. Upper piston, 42. Return spring, 51. Lifting nut, 52. Lifting screw, 53. Guide rod, 71. Frame, 72. Roller seat, 73. Conveying roller, 74. Photoelectric gate, 111. Longitudinal hole, 112. Transverse groove, 311. Cylindrical part, 321. Step ring.

[0041] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof. Detailed Implementation

[0042] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0043] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element 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 invention.

[0044] like Figures 1-9 As shown, the present invention proposes a stamping straightening device for profile steel components, including an independent contouring component 1, a caliper fixing component 2, a dual-chamber hydraulic component 3, a caliper pressurizing component 4, a lifting component 5, a gantry frame 6, and a conveying component 7. The independent contouring component 1 is located below the lifting component 5, the lifting component 5 is located on the gantry frame 6, the caliper fixing component 2 is symmetrically arranged on the side of the independent contouring component 1, the dual-chamber hydraulic component 3 is located on the independent contouring component 1, the caliper pressurizing component 4 is located in the dual-chamber hydraulic component 3, and the conveying component 7 is located below the independent contouring component 1.

[0045] The independent contouring component 1 includes a brake seat 11, a contouring column 12, and a hinged foot 13. The brake seat 11 has an array of through longitudinal holes 111. The contouring column 12 is engaged and slidably disposed in the longitudinal holes 111. The hinged foot 13 is hinged to the bottom of the contouring column 12.

[0046] Before applying pressure, multiple independent contour columns 12 can first contour the top surface of the profile, thereby applying pressure evenly to the extrusion position and avoiding the problem of local deformation of the profile caused by uneven force.

[0047] The caliper fixing assembly 2 includes a caliper seat 21, a piston caliper 22, and a hydraulic pipe 23. The brake seat 11 has symmetrical transverse grooves 112 on both sides. The caliper seat 21 is fixed in the transverse grooves 112. The piston caliper 22 is engaged and slidably disposed in the caliper seat 21. One end of the hydraulic pipe 23 is connected to the caliper seat 21.

[0048] After the contouring of the profile column 12 is completed, the piston caliper 22 can lock the relative position of each group of profile columns 12, thereby avoiding the problem of local deformation due to the different strengths of different parts of the profile during the pressure application process.

[0049] The dual-chamber hydraulic assembly 3 includes a hydraulic box 31 and a hydraulic cylinder 32. The hydraulic box 31 is fixedly connected to the top of the brake seat 11. The top of the contour column 12 is located inside the hydraulic box 31. A cylindrical part 311 is provided above the hydraulic box 31. The hydraulic cylinder 32 is fixedly connected to the top of the cylindrical part 311. The hydraulic cylinder 32 and the hydraulic box 31 are connected.

[0050] The dual-chamber hydraulic assembly 3 also includes a lower piston 33, which is engaged and slidably disposed in the hydraulic cylinder 32. The inner wall of the hydraulic cylinder 32 is provided with a stepped ring 321, and the lower piston 33 is located below the stepped ring 321.

[0051] Even if the protrusions of the various contoured columns 12 are different, the hydraulic pressure they receive in the hydraulic box 31 is the same. Through the pressure equalization technology in the same cavity, not only can multiple hard rubber blocks 14 simultaneously press against the workpiece, but the downward pressure of each part during the correction is also the same.

[0052] The caliper booster assembly 4 includes an upper piston 41 and a return spring 42. The upper piston 41 is engaged and slidably disposed in the hydraulic cylinder 32. The upper piston 41 is located above the stepped ring 321. The return spring 42 is disposed between the lower piston 33 and the upper piston 41.

[0053] By moving the lower piston 33 and the upper piston 41 closer and further apart, the extension and retraction of the piston caliper 22 can be controlled synchronously, thereby achieving the technical effect of "automatically locking each contour post 12 when pressure is applied and automatically unlocking when no pressure is applied".

[0054] The other end of the hydraulic pipe 23 is connected to the hydraulic cylinder 32, and the hydraulic pipe 23 is located between the lower piston 33 and the upper piston 41.

[0055] The independent contouring component 1 also includes a hard rubber block 14, which is fixed to the underside of the hinge foot 13.

[0056] The lifting assembly 5 includes a lifting nut 51, a lifting screw 52, ​​and a guide rod 53. The lifting nut 51 is rotatably mounted in the gantry frame 6. The lifting screw 52 and the lifting nut 51 are connected by a threaded transmission. The bottom of the lifting screw 52 is fixed to the upper piston 41. The guide rod 53 is fixed to both ends of the hydraulic box 31 and is engaged and slidably mounted in the gantry frame 6.

[0057] When the lifting nut 51 rotates, the vertical movement of the lifting screw 52 can control the lifting of the upper piston 41, thereby controlling the shaping, locking and pressing processes of this device.

[0058] The conveying assembly 7 includes a frame 71, a roller seat 72, and conveying rollers 73. The roller seat 72 is mounted on the frame 71, and the conveying rollers 73 are arranged in an array on the roller seat 72.

[0059] The conveying assembly 7 also includes a photoelectric gate 74, which is mounted on the roller seat 72.

[0060] The photoelectric gate 74 can sense the correction range of the workpiece, thus avoiding overcorrection.

[0061] In practical use, the user first needs to place the bent profile on the conveying roller 73 and make the arching direction upward; then, the workpiece is conveyed to the designated position by the conveying roller 73 manually or automatically. Generally, the highest point of the arch should be located directly below the independent contouring component 1.

[0062] Then, the lifting nut 51 is rotated by the motor. When the lifting nut 51 and the lifting screw 52 rotate relative to each other, the lifting screw 52 will descend and bring the independent contouring component 1, the caliper fixing component 2, the dual-chamber hydraulic component 3 and the caliper pressurizing component 4 down as a whole until the hard rubber block 14 contacts the top surface of the workpiece.

[0063] After a hard rubber block 14 contacts the top surface of the workpiece, the brake seat 11 continues to descend, and the corresponding contour column 12 will retract into the brake seat 11 until all the hard rubber blocks 14 contact the top surface of the workpiece.

[0064] During the process of the profile column 12 retracting into the brake seat 11, the profile column 12 will occupy the space inside the hydraulic box 31. Therefore, the lower piston 33 will gradually rise relative to the hydraulic cylinder 32 under the push of the liquid until the lower piston 33 touches the step ring 321.

[0065] The contouring stage is now complete, and the locking stage begins. The upper piston 41 continues to press down. Since the contouring column 12 cannot retract relative to the brake seat 11 at this time, and the bottom of the contouring column 12 has already pressed against the workpiece, the brake seat 11 will remain stationary during the locking stage.

[0066] As the upper piston 41 and the lower piston 33 approach each other, the fluid between the upper piston 41 and the lower piston 33 enters the caliper seat 21 through the hydraulic pipe 23, thereby pushing the piston caliper 22 to extend. The piston caliper 22 presses against and squeezes the sides of the contour post 12 from both sides, thereby locking multiple contour posts 12 relative to the brake seat 11.

[0067] Then, the extrusion stage begins. After the contour column 12 is locked, the independent contour assembly 1, the caliper fixing assembly 2, the dual-chamber hydraulic assembly 3, and the caliper pressurizing assembly 4 descend as a whole and extrude the workpiece below. During the extrusion process, since the caliper seat 21 always maintains a high pressure, and the greater the correction pressure, the greater the hydraulic pressure, the piston caliper 22 can maintain the locking effect on the contour column 12.

[0068] The photoelectric gate 74 is flush with the highest point of the conveying roller 73. When the workpiece is squeezed to the point of blocking the light of the photoelectric gate 74, the correction can be stopped and the workpiece can be reset. Due to the presence of the reset spring 42, the piston caliper 22 has a tendency to retract in its natural state.

[0069] If the profile is flexible, the height of the photoelectric gate 74 can be appropriately lowered to compensate for the elasticity through overcorrection; if overcorrection occurs, the profile needs to be flipped over and recorrected.

[0070] In another embodiment of the present invention, the lifting nut 51 can be set to a fixed form, and the lifting screw 52 can be rotated by a motor, so that there is relative rotation between the lifting nut 51 and the lifting screw 52.

[0071] As another embodiment of the present invention, the screw drive of the lifting nut 51 and the lifting screw 52 can also be converted into an electric push rod or a hydraulic push rod, which can drive the upper piston 41 to rise and fall.

[0072] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0073] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. A stamping straightening device for profile steel components, characterized in that: The assembly includes an independent contouring component (1), a caliper fixing component (2), a dual-chamber hydraulic component (3), a caliper booster component (4), a lifting component (5), a gantry frame (6), and a conveying component (7). The independent contouring component (1) is located below the lifting component (5), the lifting component (5) is located on the gantry frame (6), the caliper fixing component (2) is symmetrically located on the side of the independent contouring component (1), the dual-chamber hydraulic component (3) is located on the independent contouring component (1), the caliper booster component (4) is located in the dual-chamber hydraulic component (3), and the conveying component (7) is located below the independent contouring component (1). The independent contouring component (1) includes a brake seat (11), a contouring column (12), and a hinged foot (13). The brake seat (11) is provided with an array of through longitudinal holes (111). The contouring column (12) is engaged and slidably disposed in the longitudinal holes (111). The hinged foot (13) is hinged to the bottom of the contouring column (12). The caliper fixing assembly (2) includes a caliper seat (21), a piston caliper (22) and a hydraulic pipe (23). The brake seat (11) has symmetrical transverse grooves (112) on both sides. The caliper seat (21) is fixed in the transverse grooves (112). The piston caliper (22) is engaged and slidably disposed in the caliper seat (21). One end of the hydraulic pipe (23) is connected to the caliper seat (21). The dual-chamber hydraulic assembly (3) includes a hydraulic box (31) and a hydraulic cylinder (32). The hydraulic box (31) is fixed above the brake seat (11). The top of the contour column (12) is located inside the hydraulic box (31). A cylindrical part (311) is provided above the hydraulic box (31). The hydraulic cylinder (32) is fixed above the cylindrical part (311). The hydraulic cylinder (32) and the hydraulic box (31) are connected. The dual-chamber hydraulic assembly (3) also includes a lower piston (33), which is engaged and slidably disposed in a hydraulic cylinder (32). A stepped ring (321) is provided on the inner wall of the hydraulic cylinder (32), and the lower piston (33) is located below the stepped ring (321). The caliper booster assembly (4) includes an upper piston (41) and a return spring (42). The upper piston (41) is engaged and slidably disposed in the hydraulic cylinder (32). The upper piston (41) is located above the stepped ring (321). The return spring (42) is disposed between the lower piston (33) and the upper piston (41). The other end of the hydraulic pipe (23) is connected to the hydraulic cylinder (32), and the hydraulic pipe (23) is located between the lower piston (33) and the upper piston (41).

2. The stamping straightening equipment for profile steel components according to claim 1, characterized in that: The independent contouring component (1) also includes a hard rubber block (14) which is fixed below the hinge foot (13).

3. The stamping straightening equipment for profile steel components according to claim 2, characterized in that: The lifting assembly (5) includes a lifting nut (51), a lifting screw (52), and a guide rod (53). The lifting nut (51) is rotatably mounted in the gantry frame (6). The lifting screw (52) and the lifting nut (51) are connected by a threaded transmission. The bottom of the lifting screw (52) is fixed to the upper piston (41). The guide rod (53) is fixed to both ends of the hydraulic box (31). The guide rod (53) is engaged and slidably mounted in the gantry frame (6).

4. The stamping straightening equipment for profile steel components according to claim 3, characterized in that: The conveying assembly (7) includes a frame (71), a roller seat (72) and conveying rollers (73). The roller seat (72) is located on the frame (71), and the conveying rollers (73) are arranged in an array on the roller seat (72).

5. The stamping straightening equipment for profile steel components according to claim 4, characterized in that: The conveying assembly (7) also includes a photoelectric gate (74), which is disposed on the roller seat (72).

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