Secondary punch forming device based on aluminum alloy handrail component and using method of secondary punch forming device

Abstract

The invention relates to the technical field of punch forming, in particular to a secondary punch forming device based on an aluminum alloy handrail component and a using method thereof.The secondary punch forming device comprises a truss and a lifting plate installed on the truss, guide columns which are symmetrically arranged are installed on the lifting plate, and a supporting plate is arranged at the ends, away from the lifting plate, of the guide columns; the lower die is installed on the lifting plate, a fixing die is arranged in the lower die, a positioning assembly is arranged on the lower die and used for clamping a component, and a supporting assembly matched with the fixing die is further arranged on the lower die; the lifting stamping mechanism is arranged on the supporting plate, an upper die is connected to the lifting stamping mechanism, and a pressing plate is arranged on the upper die; according to the stamping device, different stamping strengths can be provided for a component through the upper die, and it is guaranteed that the component forming effect is optimal through secondary stamping forming.

Description

Technical Field

[0001] The invention relates to the technical field of stamping and forming, in particular to a secondary stamping and forming device based on an aluminum alloy railing component and a use method thereof. Background Art

[0002] Aluminum alloy stamping is the process of using a die to deform aluminum alloy materials on a punching machine to manufacture aluminum alloy parts. Stamping is the process of using a die with less wear and longer life to cold-punch metal sheets and other types of materials under greater pressure to produce parts of various forms and specifications.

[0003] Aluminum alloy has good formability and plasticity, low density and high strength, so it is widely used. There are many types of aluminum materials. Different types of aluminum materials have significant differences in physical properties such as hardness, strength, and elongation. Therefore, choosing the right aluminum material is the key to ensuring the quality of stamping processing.

[0004] However, compared with steel, aluminum alloys have differences in elongation, plasticity ratio and room temperature forming performance. During stamping, if the stamping strength is too high, the strain concentration area of ​​the aluminum alloy may crack during the processing. If the stamping strength is too low, due to the extremely low elastic modulus ratio of the aluminum alloy, once the stamped parts are ejected from the mold, there will be obvious springback and reduced resistance. Summary of the invention

[0005] The purpose of the present invention is to provide a secondary stamping forming device based on an aluminum alloy railing component and a use method thereof to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: The secondary stamping forming device based on the aluminum alloy railing component includes: A truss, and a lifting plate mounted on the truss, wherein the lifting plate is mounted with symmetrically arranged guide columns, and a support plate is arranged at one end of the guide column away from the lifting plate; Also includes: A lower mold is mounted on the lifting plate, a fixed mold is arranged inside the lower mold, a positioning assembly is arranged on the lower mold for clamping the component, and a supporting assembly cooperating with the fixed mold is also arranged on the lower mold; A lifting and stamping mechanism is arranged on the support plate, an upper mold is connected to the lifting and stamping mechanism, a pressing plate is arranged on the upper mold, and the lifting and stamping mechanism can drive the upper mold to move along the length direction of the guide column, and drive the positioning assembly and the supporting assembly to move, so as to adjust the matching state between the upper mold and the fixed mold; A stamping regulating mechanism is arranged on the lifting and stamping mechanism. The stamping regulating mechanism can be activated when the lifting and stamping mechanism moves, so as to adjust the stamping strength of the component through the lifting and stamping mechanism and the upper die.

[0007] As a further solution of the present invention: the positioning assembly includes a fixed plate installed on the lower mold, and a plurality of support rods equidistantly distributed in a circle are slidably installed on the fixed plate, and a No. 3 spring abutting against the fixed plate is sleeved on the support rod, and a positioning block is provided at the end of the support rod.

[0008] As a further solution of the present invention: the supporting assembly includes limiting holes which are opened in the lower mold and are symmetrically arranged, a sliding plate is slidably installed in the lower mold, a limiting column which is slidably connected to the limiting hole is arranged on the sliding plate, a No. 2 spring is sleeved on the limiting column, and two ends of the No. 2 spring are respectively abutted against the sliding plate and the lower mold.

[0009] As a further solution of the present invention: the lifting and stamping mechanism includes a cylinder installed on the support plate, a movable plate is provided on the telescopic end of the cylinder, the movable plate is slidably connected to the guide column, and an elastic component is provided on the movable plate.

[0010] As a further solution of the present invention: the elastic component comprises a rotating sleeve rotatably mounted on the movable plate and symmetrically arranged, a movable rod is slidably mounted in the rotating sleeve, a receiving plate is arranged at one end of the movable rod away from the rotating sleeve, and the receiving plate is connected to the upper mold; It also includes a No. 1 spring sleeved on the rotating sleeve and the movable rod, and the No. 1 spring is in contact with the receiving plate.

[0011] As a further solution of the present invention: the stamping regulation mechanism includes a first vertical groove, a first oblique groove, a second vertical groove, and a second oblique groove opened on the inner wall of the rotating sleeve, and a first limit block is arranged on the movable rod, and the first limit block can slide along the first vertical groove, the first oblique groove, the second vertical groove, and the second oblique groove, and a driven component connected to the rotating sleeve is arranged on the movable plate.

[0012] As a further solution of the present invention: the driven assembly includes a rotating rod rotatably mounted on the movable plate, the rotating rod is sleeved with a belt rotatably connected to the rotating sleeve, and the rotating rod is provided with a guiding structure connected to the rotating sleeve.

[0013] As a further solution of the present invention: the guiding structure includes a first spiral groove, a first annular groove, a second spiral groove, a second annular groove, and a straight groove formed on the rotating rod; a limit plate slidably connected to the rotating sleeve is movably mounted on the rotating rod; the limit plate abuts against the No. 1 spring; a second limit block is provided on the inner wall of the limit plate; the second limit block can slide along the first spiral groove, the first annular groove, the second spiral groove, the second annular groove, and the straight groove.

[0014] The method for using the secondary stamping forming device based on the aluminum alloy railing component comprises the following steps: Step 1: Place the component on the support assembly and, under the action of the positioning assembly, position the component at the center of the fixed mold; Step 2: When the component needs to be stamped, the lifting and stamping mechanism moves, and drives the upper mold and the pressing plate to move along the length direction of the guide column. When the pressing plate moves to the position abutting against the positioning component, the positioning component is controlled to move and separate from the component; Step 3: When the pressing plate moves to the position of contacting with the component, at this time, under the action of the upper mold, the support assembly is driven to move, and under the action of the upper mold and the fixed mold, the component is stamped and formed once; Step 4: After one stamping is completed, the lifting and stamping mechanism controls the upper mold to separate from the fixed mold. At the same time, under the action of the stamping control mechanism, the supporting force provided by the lifting and stamping mechanism to the upper mold is increased. Under the action of the lifting and stamping mechanism, the upper mold is controlled to cooperate with the fixed mold again to perform secondary stamping forming on the component through greater stamping force.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: the present application can perform secondary stamping and forming on the component, ensuring that the component will not rebound due to elastic deformation, so as to ensure that the stamping of the component meets the required requirements. When the component needs to be stamped and formed, at this time, the component can be placed on the support assembly, and under the action of the positioning assembly, ensure that the component is located at the center of the fixed mold. At this time, under the action of the lifting and stamping mechanism, the upper mold and the pressing plate are driven to move toward the lower mold. When the pressing plate moves to the position matching with the positioning assembly, the positioning assembly will be separated from the component, and the pressing plate will continue to move and abut against the component, thereby controlling the movement of the support assembly. At this time, the upper mold will cooperate with the fixed mold to perform a stamping and forming on the component. The lifting and stamping mechanism continues to move and controls the upper mold to reset. At the same time, under the action of the stamping control mechanism, the stamping force provided to the upper mold by the lifting and stamping mechanism is increased. When the lifting and stamping mechanism controls the upper mold to move toward the fixed mold again, under the action of the upper mold and the fixed mold, the component is stamped and formed with a greater stamping force to ensure that the molding quality of the component meets the required requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of an embodiment of a secondary stamping forming device based on an aluminum alloy railing component.

[0017] Figure 2 It is a structural schematic diagram from another angle in an embodiment of a secondary stamping forming device based on an aluminum alloy railing component.

[0018] Figure 3 It is a schematic diagram of the connection relationship between the lifting and stamping mechanism, the positioning assembly, and part of the supporting assembly in an embodiment of the secondary stamping forming device based on the aluminum alloy railing component.

[0019] Figure 4 It is a structural schematic diagram of part of the lifting and lowering stamping mechanism and part of the stamping regulating mechanism in an embodiment of a secondary stamping forming device based on an aluminum alloy railing component.

[0020] Figure 5 for Figure 4 Schematic diagram of the half-section structure.

[0021] Figure 6 for Figure 5 A schematic diagram of the enlarged structure at point A in the middle.

[0022] Figure 7 It is a schematic diagram of the exploded structure of part of the lifting and lowering stamping mechanism and part of the stamping regulating mechanism in an embodiment of a secondary stamping forming device based on an aluminum alloy railing component.

[0023] Figure 8 It is a structural schematic diagram of the positioning component and part of the supporting component in an embodiment of the secondary stamping forming device based on the aluminum alloy railing component.

[0024] Fig. 9 for Figure 8 Schematic diagram of the half-section structure.

[0025] Fig.10 It is a schematic diagram of the exploded structure of part of the stamping control mechanism in an embodiment of a secondary stamping forming device based on an aluminum alloy railing component.

[0026] Fig.11 It is a schematic diagram of the exploded structure of the positioning component and the supporting component in an embodiment of the secondary stamping forming device based on the aluminum alloy railing component.

[0027] In the figure: 1, truss; 2, lifting plate; 3, guide column; 4, support plate; 5, cylinder; 6, movable plate; 7, rotating sleeve; 701, first vertical slot; 702, first inclined slot; 703, second vertical slot; 704, second inclined slot; 8, movable rod; 9, No. 1 spring; 10, receiving plate; 11, upper mold; 1101, pressing plate; 12, first limit block; 13, belt; 14, rotating rod; 140 1. First spiral groove; 1402. First annular groove; 1403. Second spiral groove; 1404. Second annular groove; 1405. Straight groove; 15. Limit plate; 16. Second limit block; 17. Lower mold; 1701. Limit hole; 18. Sliding plate; 19. Limit column; 20. No. 2 spring; 21. Fixed mold; 22. Fixed plate; 23. Support rod; 24. No. 3 spring; 25. Positioning block. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] In addition, when an element in the present invention is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only embodiment.

[0030] See also Figure 1 to Figure 11In the embodiment of the present invention, the secondary stamping forming device based on the aluminum alloy railing component includes: a truss 1, a lifting plate 2, a guide column 3, a support plate 4, a lower mold 17, a positioning component, a fixed mold 21, a support component, a lifting and stamping mechanism, an upper mold 11, a pressing plate 1101, and a stamping regulating mechanism. In order to ensure that the component will not rebound due to elastic deformation during stamping, it is necessary to perform secondary stamping forming on the component to ensure that the stamping of the component meets the required requirements. When the component needs to be stamped, the component can be placed on the support component, and under the action of the positioning component, it is ensured that the component is located at the center of the fixed mold 21. At this time, under the action of the lifting and stamping mechanism, the upper mold 11 and the pressing plate 1101 are driven toward the lower mold 1 7 direction movement, when the pressing plate 1101 moves to the position cooperating with the positioning assembly, the positioning assembly will be separated from the component, and the pressing plate 1101 continues to move and abuts against the component, thereby controlling the movement of the supporting assembly. At this time, the upper mold 11 will cooperate with the fixed mold 21 to perform a stamping forming on the component. The lifting and stamping mechanism continues to move and controls the upper mold 11 to reset. At the same time, under the action of the stamping regulating mechanism, the stamping force provided to the upper mold 11 by the lifting and stamping mechanism is increased. When the lifting and stamping mechanism controls the upper mold 11 to move toward the fixed mold 21 again, under the action of the upper mold 11 and the fixed mold 21, the component is stamped and formed with a greater stamping force to ensure that the molding quality of the component meets the required requirements.

[0031] The details are as follows, including: A truss 1, and a lifting plate 2 mounted on the truss 1, wherein the lifting plate 2 is mounted with symmetrically arranged guide columns 3, and a support plate 4 is arranged at one end of the guide column 3 away from the lifting plate 2; Also includes: See also Figure 1-Figure 3 , Figure 8 , Fig. 9 , Fig.11 The lower mold 17 is installed on the lifting plate 2, and a fixed mold 21 is arranged inside the lower mold 17. A positioning assembly is arranged on the lower mold 17 for clamping the component. The positioning assembly includes a fixed plate 22 installed on the lower mold 17, and a plurality of support rods 23 equidistantly distributed in a circle are slidably mounted on the fixed plate 22. The support rods 23 are sleeved with a No. 3 spring 24 abutting against the fixed plate 22, and a positioning block 25 is arranged at the end of the support rod 23.

[0032] In detail, when the railing components are stamped and formed, it is necessary to ensure that the position of the components remains in the matching position with the fixed mold 21. Therefore, the components need to be positioned. In the initial state, the No. 3 spring 24 is in a compressed state, so that the positioning block 25 is located at the end of the stroke in the direction of approaching each other. When the component needs to be stamped and formed, the component can be placed on the support assembly at this time. At the same time, the positioning blocks 25 are controlled to move in the direction away from each other, so that the No. 3 spring 24 is compressed. When the spacing between the positioning blocks 25 is larger than the component size, the No. 3 spring 24 is elastically released and drives the positioning blocks 25 to move in the direction of approaching each other through the support rod 23. When the positioning blocks 25 abut against the component, the positioning blocks 25 will control the component to move to the center position of the fixed mold 21 to ensure the best component molding effect.

[0033] See also Figure 1-Figure 3 , Figure 8 , Fig. 9 , Fig.11 The lower mold 17 is also provided with a supporting assembly that cooperates with the fixed mold 21, and the supporting assembly includes limiting holes 1701 that are opened in the lower mold 17 and symmetrically arranged. A sliding plate 18 is slidably installed in the lower mold 17, and a limiting column 19 that is slidably connected to the limiting hole 1701 is provided on the sliding plate 18. A No. 2 spring 20 is sleeved on the limiting column 19, and both ends of the No. 2 spring 20 are respectively abutted against the sliding plate 18 and the lower mold 17.

[0034] It should be noted that among many metal materials, aluminum alloy has become one of the important candidates for daily life materials due to its advantages such as light weight and high strength. Compared with steel, aluminum alloy has gaps in elongation, plasticity ratio and room temperature forming performance. Its stamping forming is full of challenges. The elastic modulus of aluminum alloy is extremely low, so once the stamped parts are ejected from the mold, there will be obvious springback, reduced resistance, and the forming limit of aluminum alloy is lower than that of steel, which can easily lead to cracks in the strain concentration area of ​​aluminum alloy during processing. Therefore, in order to prevent the aluminum alloy from cracking due to excessive impact force during stamping, or rebounding due to insufficient impact force, the components need to be processed through secondary stamping.

[0035] Specifically, in the initial state, the No. 2 spring 20 is in a compressed state. Under the action of the limit column 19, the sliding plate 18 is located at the end of the stroke away from the lower mold 17, and the sliding plate 18 and the fixed mold 21 are in the same horizontal plane. When the component needs to be stamped, the component can be placed on the sliding plate 18, and under the action of the positioning block 25, it is ensured that the component is always located at the center of the fixed mold 21. At this time, under the action of the lifting and stamping mechanism, the upper mold 11 and the pressing plate 1101 are controlled to move toward the lower mold 17. When the pressing plate 1101 moves to the position abutting against the positioning block 25, the positioning block 25 is controlled to move in the direction away from each other, so that the positioning block 25 is separated from the component, and the pressing plate 1101 It will abut against the component to ensure that the component will not shift during stamping. The pressure plate 1101 will also control the sliding plate 18 to move toward the lower mold 17 through the construction, so that the limit column 19 enters the limit hole 1701 and compresses the No. 2 spring 20. The component will cooperate with the fixed mold 21 and, under the action of the upper mold 11, the component will be stamped and formed. After one stamping is completed, the upper mold 11 moves toward the initial position. At this time, the No. 2 spring 20 is elastically released, so that the sliding plate 18 is reset. At the same time, the No. 3 spring 24 is elastically released, so that the positioning block 25 moves toward the direction of approaching each other again, and the component is positioned again to ensure that during the second stamping, the component always remains in the position coordinated with the fixed mold 21.

[0036] See also Figure 1-Figure 5 , Figure 7 , a lifting and stamping mechanism is arranged on the support plate 4, an upper mold 11 is connected to the lifting and stamping mechanism, a pressing plate 1101 is arranged on the upper mold 11, the lifting and stamping mechanism can drive the upper mold 11 to move along the length direction of the guide column 3, and drive the positioning assembly and the supporting assembly to move, so as to adjust the matching state between the upper mold 11 and the fixed mold 21, the lifting and stamping mechanism includes a cylinder 5 installed on the support plate 4, and a movable plate 6 is arranged on the telescopic end of the cylinder 5, The movable plate 6 is slidably connected to the guide column 3, and an elastic component is arranged on the movable plate 6, wherein the elastic component includes a rotating sleeve 7 rotatably mounted on the movable plate 6 and symmetrically arranged, a movable rod 8 is slidably mounted in the rotating sleeve 7, and a receiving plate 10 is arranged at one end of the movable rod 8 away from the rotating sleeve 7, and the receiving plate 10 is connected to the upper mold 11; it also includes a No. 1 spring 9 sleeved on the rotating sleeve 7 and the movable rod 8, and the No. 1 spring 9 abuts against the receiving plate 10.

[0037] Furthermore, in the initial state, the No. 1 spring 9 is in a compressed state, so that the movable rod 8 is located at the end of the stroke away from the rotating sleeve 7, so that the distance between the receiving plate 10 and the movable plate 6 is maximized. When the component needs to be stamped, at this time, the cylinder 5 works and drives the movable plate 6 to move along the length direction of the guide column 3. The movable plate 6 also drives the rotating sleeve 7 to move, thereby driving the movable rod 8 to move through the No. 1 spring 9, so that the receiving plate 10 moves toward the lifting plate 2. The receiving plate 10 also drives the upper mold 11 and the pressing plate 1101 to move toward the lower mold 17. When the pressing plate 1101 moves to the fixed When the positioning block 25 is in abutment, the positioning block 25 will move in a direction away from each other, so that the positioning block 25 is separated from the component. When the pressure plate 1101 moves to the abutment position with the component, it is ensured that the position of the component will not change. At this time, when the upper mold 11 is in abutment with the component and under the action of the fixed mold 21, the component is stamped, and the movable plate 6 continues to move, so that the length of the rotating sleeve 7 inserted into the movable rod 8 increases, and under the action of the stamping control mechanism, the compression amount of the No. 1 spring 9 increases to gradually increase the impact strength on the component until the expansion and contraction amount of the cylinder 5 reaches the set value, and the component is stamped and formed in one step.

[0038] Preferably, after one stamping process, the cylinder 5 controls the upper die 11 to move in a direction away from the lower die 17. Since the aluminum alloy component may rebound after a single stamping, it is necessary to adjust the stamping strength of the upper die 11 on the component. At this time, under the action of the stamping control mechanism, the initial compression amount of the No. 1 spring 9 is adjusted to ensure that the stamping strength of the upper die 11 on the component is increased while the movement amount of the movable plate 6 remains unchanged.

[0039] See also Figure 1-Figure 7 , Fig.10, a stamping regulating mechanism is arranged on the lifting and stamping mechanism, and the stamping regulating mechanism can be activated when the lifting and stamping mechanism moves, so as to adjust the stamping strength of the component through the lifting and stamping mechanism and the upper mold 11, and the stamping regulating mechanism includes a first vertical groove 701, a first inclined groove 702, a second vertical groove 703, and a second inclined groove 704 opened on the inner wall of the rotating sleeve 7, and a first limit block 12 is arranged on the movable rod 8, and the first limit block 12 can slide along the first vertical groove 701, the first inclined groove 702, the second vertical groove 703, and the second inclined groove 704, and a driven component connected to the rotating sleeve 7 is arranged on the movable plate 6, wherein the driven component includes a rotating rod 14 rotatably installed on the movable plate 6, and the rotating rod A belt 13 rotatably connected to the rotating sleeve 7 is sleeved on 14, and a guiding structure connected to the rotating sleeve 7 is arranged on the rotating rod 14. The guiding structure mentioned above includes a first spiral groove 1401, a first annular groove 1402, a second spiral groove 1403, a second annular groove 1404, and a straight groove 1405 opened on the rotating rod 14. A limiting plate 15 slidably connected to the rotating sleeve 7 is movably installed on the rotating rod 14, and the limiting plate 15 abuts against the No. 1 spring 9. A second limiting block 16 is arranged on the inner wall of the limiting plate 15, and the second limiting block 16 can slide along the first spiral groove 1401, the first annular groove 1402, the second spiral groove 1403, the second annular groove 1404, and the straight groove 1405.

[0040] To be more specific, both ends of the first vertical groove 701 are connected to one end of the first inclined groove 702 and the second inclined groove 704, the second vertical groove 703 is connected to the other end of the first inclined groove 702 and the second inclined groove 704, both ends of the first annular groove 1402 are connected to one end of the first spiral groove 1401 and the second spiral groove 1403, both ends of the second annular groove 1404 are respectively connected to the other end of the second spiral groove 1403 and one end of the straight groove 1405, and the other end of the straight groove 1405 is connected to the other end of the first spiral groove 1401. In the initial state, the first limit block 12 is located in the first vertical groove. 701 is connected to the second inclined groove 704. Since the No. 1 spring 9 is in a compressed state, the movable rod 8 is located at the end of the stroke away from the rotating sleeve 7. The second limit block 16 is located at the connection position between the straight groove 1405 and the first spiral groove 1401, so that the limit plate 15 is located at the end of the stroke toward the movable plate 6. At this time, the compression amount of the No. 1 spring 9 in the initial state is the smallest. When the component needs to be stamped, the cylinder 5 works and drives the movable plate 6 to move in the direction away from the support plate 4, thereby driving the rotating sleeve 7 to move. The rotating sleeve 7 will drive the bearing through the movable rod 8. The connecting plate 10 moves to drive the upper mold 11 to move toward the lower mold 17. When the upper mold 11 moves to the position of contact with the component, the control component cooperates with the fixed mold 21 until the upper mold 11 stops moving. At this time, the rotating sleeve 7 will move toward the movable rod 8, so that the first limit block 12 moves along the length direction of the first vertical groove 701 and gradually compresses the No. 1 spring 9. When the first limit block 12 disengages from the first vertical groove 701 and enters the first inclined groove 702, the rotating sleeve 7 rotates and drives the rotating rod 14 to rotate through the belt 13, thereby driving the rotating rod 14 to rotate. The groove moves, and under the action of the first spiral groove 1401, the second limit block 16 slides along the first spiral groove 1401 to control the limit plate 15 to move in the direction away from the movable plate 6 and increase the compression of the No. 1 spring 9. When the first limit block 12 moves to the connection position of the first inclined groove 702 and the second vertical groove 703, the rotating sleeve 7 rotates just a quarter of a turn, and the telescopic amount of the cylinder 5 reaches the maximum, the rotating rod 14 also rotates a quarter of a turn, and the second limit block 16 disengages from the first spiral groove 1401 and enters the first annular groove 1402. At this time, the component is stamped and formed in one step.

[0041] Preferably, at this time, the upper mold 11 can be controlled by the cylinder 5 to move toward the initial position and separate from the component. At the same time, under the action of the No. 1 spring 9, the movable rod 8 is driven to move toward the initial position, so that the first limit block 12 enters the second vertical groove 703. When the first limit block 12 disengages from the second vertical groove 703 and enters the second inclined groove 704, the rotating sleeve 7 rotates again and drives the rotating rod 14 to rotate through the belt 13, so that the second limit block 16 slides along the trajectory of the first annular groove 1402 until the second limit block 16 moves to the position where it is about to disengage from the first annular groove 1402, and the first limit block 12 moves to the second inclined groove 704 is connected to the first vertical groove 701, the rotating sleeve 7 rotates a quarter of a turn again, and when the upper mold 11 returns to the initial position, the cylinder 5 controls the upper mold 11 to move toward the lower mold 17 again, and when the upper mold 11 is fitted with the component again, the upper mold 11 stops moving, and the first limit block 12 slides along the first vertical groove 701 again, and when the first limit block 12 enters the first inclined groove 702, the rotating sleeve 7 rotates again, so that the rotating rod 14 rotates, so that the second limit block 16 is separated from the first annular groove 1402 and enters the second spiral groove 1403, at this time, the limit plate 15 is moved away from the movable plate 6 again. , so that the compression amount of the No. 1 spring 9 increases again, thereby increasing the stamping strength of the component. When the first limit block 12 moves to the position where the first inclined groove 702 and the second vertical groove 703 are connected, the rotating sleeve 7 rotates a quarter of a turn again, and the second limit block 16 disengages from the second spiral groove 1403 and enters the second annular groove 1404. At this time, the secondary stamping forming is completed, and the cylinder 5 controls the upper mold 11 to move toward the initial position. The No. 1 spring 9 is elastically released, so that the movable rod 8 moves again in the direction away from the rotating sleeve 7, so that the first limit block 12 slides along the second vertical groove 703 until the first limit block 12 enters the No. In the second inclined groove 704, the rotating sleeve 7 rotates again, so that the second limit block 16 slides along the second annular groove 1404. When the first limit block 12 returns to the connection position between the first vertical groove 701 and the second inclined groove 704, the second limit block 16 moves to the connection position between the second annular groove 1404 and the straight groove 1405. The No. 1 spring 9 is elastically released, so that the limit plate 15 moves toward the initial position, so that the second limit block 16 returns to the connection position between the straight groove 1405 and the first spiral groove 1401, and the above steps are repeated, thereby achieving the effect of secondary stamping forming of the component through different stamping strengths to ensure the best component forming quality.

[0042] The method for using the secondary stamping forming device based on the aluminum alloy railing component comprises the following steps: Step 1: placing the component on the support assembly and, under the action of the positioning assembly, positioning the component at the center of the fixed mold 21; Step 2: When the component needs to be stamped, the lifting and stamping mechanism moves, and drives the upper mold 11 and the pressing plate 1101 to move along the length direction of the guide column 3. When the pressing plate 1101 moves to the position abutting against the positioning assembly, the positioning assembly is controlled to move and separate from the component; Step 3: When the pressing plate 1101 moves to the position of contacting with the component, the upper mold 11 drives the support assembly to move, and the upper mold 11 and the fixed mold 21 perform a stamping process on the component. Step 4: After one stamping is completed, the lifting and stamping mechanism controls the upper mold 11 to separate from the fixed mold 21. At the same time, under the action of the stamping control mechanism, the supporting force provided by the lifting and stamping mechanism to the upper mold 11 is increased. Under the action of the lifting and stamping mechanism, the upper mold 11 is controlled to cooperate with the fixed mold 21 again to perform secondary stamping forming on the component through a greater stamping force.

[0043] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0044] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A secondary stamping forming device based on an aluminum alloy railing component, comprising: A truss (1), and a lifting plate (2) mounted on the truss (1), wherein the lifting plate (2) is mounted with symmetrically arranged guide columns (3), and a support plate (4) is arranged at one end of the guide column (3) facing away from the lifting plate (2); It is characterized by further comprising: A lower mold (17) is mounted on the lifting plate (2), a fixed mold (21) is arranged inside the lower mold (17), a positioning assembly is arranged on the lower mold (17) for clamping the component, and a supporting assembly cooperating with the fixed mold (21) is also arranged on the lower mold (17); a lifting and stamping mechanism, arranged on the support plate (4), the lifting and stamping mechanism being connected to an upper mold (11), the upper mold (11) being provided with a pressing plate (1101), the lifting and stamping mechanism being capable of driving the upper mold (11) to move along the length direction of the guide column (3), and driving the positioning assembly and the supporting assembly to move, so as to adjust the matching state between the upper mold (11) and the fixed mold (21); A stamping regulating mechanism, arranged on the lifting and stamping mechanism, the stamping regulating mechanism being able to operate when the lifting and stamping mechanism moves, so as to regulate the stamping strength of the component through the lifting and stamping mechanism and the upper die (11); The lifting and stamping mechanism comprises a cylinder (5) mounted on the support plate (4), a movable plate (6) is provided on the telescopic end of the cylinder (5), the movable plate (6) is slidably connected to the guide column (3), and an elastic component is provided on the movable plate (6); The elastic component comprises a rotating sleeve (7) rotatably mounted on the movable plate (6) and arranged symmetrically, a movable rod (8) being slidably mounted in the rotating sleeve (7), a receiving plate (10) being arranged at one end of the movable rod (8) away from the rotating sleeve (7), and the receiving plate (10) being connected to the upper mold (11); It also includes a No. 1 spring (9) sleeved on the rotating sleeve (7) and the movable rod (8), wherein the No. 1 spring (9) abuts against the receiving plate (10); The stamping control mechanism comprises a first vertical groove (701), a first inclined groove (702), a second vertical groove (703), and a second inclined groove (704) which are provided on the inner wall of the rotating sleeve (7); a first limiting block (12) is provided on the movable rod (8); the first limiting block (12) can slide along the first vertical groove (701), the first inclined groove (702), the second vertical groove (703), and the second inclined groove (704); and a driven component connected to the rotating sleeve (7) is provided on the movable plate (6); The driven assembly comprises a rotating rod (14) rotatably mounted on the movable plate (6), a belt (13) rotatably connected to the rotating sleeve (7) being sleeved on the rotating rod (14), and a guide structure connected to the rotating sleeve (7) being provided on the rotating rod (14); The guiding structure comprises a first spiral groove (1401), a first annular groove (1402), a second spiral groove (1403), a second annular groove (1404), and a straight groove (1405) which are provided on the rotating rod (14); a limiting plate (15) which is slidably connected to the rotating sleeve (7) is movably mounted on the rotating rod (14); the limiting plate (15) abuts against the first spring (9); a second limiting block (16) is provided on the inner wall of the limiting plate (15); the second limiting block (16) is capable of sliding along the first spiral groove (1401), the first annular groove (1402), the second spiral groove (1403), the second annular groove (1404), and the straight groove (1405).

2. The secondary stamping forming device based on the aluminum alloy railing component according to claim 1 is characterized in that: The positioning assembly comprises a fixing plate (22) mounted on the lower mould (17), a plurality of support rods (23) equidistantly distributed in a circumference are slidably mounted on the fixing plate (22), a number 3 spring (24) abutting against the fixing plate (22) is sleeved on the support rod (23), and a positioning block (25) is provided at the end of the support rod (23).

3. The secondary stamping forming device based on the aluminum alloy railing component according to claim 1 is characterized in that: The support assembly comprises a limiting hole (1701) which is opened in the lower mold (17) and is symmetrically arranged. A sliding plate (18) is slidably installed in the lower mold (17). A limiting column (19) which is slidably connected to the limiting hole (1701) is arranged on the sliding plate (18). A second spring (20) is sleeved on the limiting column (19). Two ends of the second spring (20) are respectively in contact with the sliding plate (18) and the lower mold (17).

4. A method for using a secondary stamping forming device based on an aluminum alloy railing component, using the secondary stamping forming device based on an aluminum alloy railing component as described in any one of claims 1 to 3, characterized in that: The following steps are involved: Step 1: placing the component on the support assembly and, under the action of the positioning assembly, positioning the component at the center of the fixed mold (21); Step 2: When the component needs to be stamped, the lifting and stamping mechanism moves, and drives the upper mold (11) and the pressing plate (1101) to move along the length direction of the guide column (3). When the pressing plate (1101) moves to a position abutting against the positioning component, the positioning component is controlled to move and separate from the component. Step three: when the pressing plate (1101) moves to a position where it contacts the component, the upper mold (11) drives the support assembly to move, and the upper mold (11) and the fixed mold (21) perform a stamping process on the component; Step 4: After one stamping is completed, the lifting and stamping mechanism controls the upper mold (11) to separate from the fixed mold (21). At the same time, under the action of the stamping control mechanism, the support force provided by the lifting and stamping mechanism to the upper mold (11) is increased. Under the action of the lifting and stamping mechanism, the upper mold (11) is controlled to cooperate with the fixed mold (21) again, so as to perform a second stamping forming on the component with a greater stamping force.

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