High-strength aluminum alloy forge piece punching machine for aerospace

Abstract

The invention discloses a high-strength aluminum alloy forge piece punching machine for aerospace and relates to the technical field of punching machines, the high-strength aluminum alloy forge piece punching machine is used for a punching machine and an aluminum alloy plate, the punching machine comprises a punching base, a bottom die, a top die and spring pins, the punching base is slidably connected to the punching machine, and the punching base is connected with the lower surface of the top of the punching machine through a hydraulic rod; the bottom die is installed on the upper surface of the bottom of the punching machine, the top die is installed on the lower surface of the punching base, four spring pins are arranged on the top face of the bottom die, and an aluminum alloy plate is placed at the telescopic ends of the four spring pins. The four side abutting plates abut against the four edges of the aluminum alloy plate, the deviated aluminum alloy plate is corrected to be attached to the four edges of the four side abutting plates in parallel, position correction can be conducted on the aluminum alloy plate at the deviated position in the stamping process, it can be guaranteed that the aluminum alloy plate is always kept at the accurate position in the stamping process, and the stamping efficiency is improved. And the problem that the production efficiency is reduced due to the fact that the punching machine needs to be shut down for adjustment due to position deviation can be solved.

Description

Technical Field

[0001] The invention relates to the technical field of punching machines, in particular to a high-strength aluminum alloy forging punching machine for aerospace. Background Art

[0002] The high-strength aluminum alloy forging punching machine for aerospace is a device specially used for stamping high-strength aluminum alloy forgings in the aerospace field. It generates strong pressure through a mechanical transmission mechanism or a hydraulic system, so that the mold installed on the punching machine applies force to the aluminum alloy plate, thereby causing the aluminum alloy plate to undergo plastic deformation to obtain the desired shape and size.

[0003] However, the aluminum alloy sheet is put on the working surface of the punching machine by the staff manually, and the working surface of the punching machine is usually coated with lubricating substances to facilitate the separation of the high-strength aluminum alloy forgings completed by punching. The lubricating oil substance reduces the friction between the aluminum alloy sheet and the working surface, which makes it difficult for the staff to control the position of the sheet as accurately as on an unlubricated surface when manually placing the sheet. Even a slight external force, such as pushing or adjusting the action during placement, may cause the sheet to slide on the working surface, resulting in positional deviation; At the same time, there are certain visual errors when the human eye judges the position and alignment of objects. When operators manually place aluminum alloy plates, even if they try their best to align the plates with the positioning devices on the working surface of the punching machine, due to the existence of visual errors, they may not be able to accurately judge whether they are completely aligned.

[0004] Once the aluminum alloy plate is found to be offset, the machine needs to be stopped to adjust the plate position, which will interrupt the stamping production process and increase the production time of a single product. For the mass production of aerospace parts, frequent position offset adjustments will lead to a significant extension of the production cycle. At the same time, aerospace parts have extremely high requirements for dimensional accuracy. The position offset of the aluminum alloy plate will cause the stamped high-strength aluminum alloy forgings to have deviations in length, width, thickness, aperture, hole spacing and other dimensions. At the same time, the offset aluminum alloy plate will be subjected to uneven force during the stamping process, causing the shape of the forging to deform. The size, shape and performance problems caused by the position offset will cause a large number of stamping parts to become scrap, increasing production costs and reducing production efficiency.

[0005] To this end, a high-strength aluminum alloy forging punching machine for aerospace is proposed. Summary of the invention

[0006] The object of the present invention is to provide a high-strength aluminum alloy forging punching machine for aerospace use to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a high-strength aluminum alloy forging punch for aerospace, used for a punch and an aluminum alloy plate, the punch comprises a punch seat, a bottom die, a top die, and a spring pin, the punch seat is slidably connected to the punch, the punch seat is connected to the top lower surface of the punch through a hydraulic rod, the bottom die is mounted on the bottom upper surface of the punch, the top die is mounted on the lower surface of the punch seat, four spring pins are arranged on the top surface of the bottom die, the aluminum alloy plate is placed on the telescopic ends of the four spring pins, the punch is provided with a centering component for aligning the aluminum alloy plate with the bottom die and the top die, the centering component comprises four pressing plates, the four pressing plates are fixedly connected to the side wall of the punch seat in a rectangular array, and the working surface of the punch is in a rectangular array. Four push plates are provided, and the four push plates are all fitted with the edge of the working surface of the bottom mold, and the top surfaces of the four push plates at one end close to the bottom mold are each fixedly connected with a telescopic rod 1, and a spring 1 is respectively provided inside the four telescopic rods 1, and the telescopic ends of the four telescopic rods 1 are each fixedly connected with a side abutment plate close to the bottom mold. Two grooves 1 are symmetrically provided on the working surface of the stamping machine, and a slider is slidably connected inside each of the two grooves 1, and a spring 2 is respectively fixedly connected to one end of the two sliders away from the bottom mold, and the bottom surfaces of the two push plates located on the front and rear sides of the working surface of the stamping machine are each fixedly connected with a support block, and a telescopic tube 2 is respectively fixedly connected between the two support blocks on one side close to the bottom mold and the stamping machine, and a spring 3 is respectively provided inside the two telescopic tubes 2.

[0008] Furthermore, each of the four side support plates is provided with a edge clamping assembly, and the edge clamping assembly includes an upper support plate, which is fixedly connected to a side of the side support plate close to the bottom mold, and a bottom block is fixedly connected to the bottom of the side support plate close to the upper support plate, and a telescopic rod three is fixedly connected to the top of the bottom block, and the telescopic end of the telescopic rod three is fixedly connected to the lower support plate, and a spring four is arranged inside the telescopic rod three.

[0009] Furthermore, each of the four pressure plates is provided with a protective component, which includes a through slot, which is opened on the vertical surface of the pressure plate, and a counterweight block is slidably connected inside the through slot, and a folding baffle is fixedly connected to the upper and lower surfaces of the counterweight block, and two slots 2 are symmetrically opened on the vertical surface of the pressure plate, and a shielding member is fixedly connected inside each of the two slots 2, and two connecting rods are symmetrically rotatably connected to the counterweight block.

[0010] Furthermore, the two ends of the four springs 1 are respectively fixedly connected to the telescopic rod 1 and the push plate, the two springs 2 are fixedly connected to the inner wall of the adjacent groove 1 away from the bottom mold, and the two sliders are fixedly connected to the bottom surfaces of the adjacent push plates.

[0011] Furthermore, two ends of the two springs three are fixedly connected to the connected support blocks and the punching machine respectively.

[0012] Furthermore, the four push plates are vertically corresponding to the four pressure plates respectively, the bottom surface of the pressure plate is set as an inclined surface, the end of the push plate away from the bottom mold is set as an inclined surface, and the inclined surface of the pressure plate is pressed and matched with the inclined surface of the push plate.

[0013] Furthermore, two ends of the spring four are fixedly connected to the lower support plate and the bottom block respectively.

[0014] Furthermore, the upper and lower abutment plates are arranged on opposite inclined surfaces at a side away from the side abutment plates, and the bottom mold is provided with a groove matched with the lower abutment plate.

[0015] Furthermore, one end of the two folding baffles away from each other is fixedly connected to the upper and lower inner walls of the through slot, and one end of the two connecting rods away from the counterweight block is rotatably connected to the top of the adjacent shielding member.

[0016] Furthermore, the shielding member is composed of a plurality of Z-shaped plates, and the plurality of shielding members are mutually limitedly slidably connected.

[0017] Compared with the prior art, the present invention has the following beneficial effects: By using the four side abutment plates to abut the four sides of the aluminum alloy plate, the offset aluminum alloy plate can be corrected to be parallel to the four sides of the four side abutment plates, so that the position of the offset aluminum alloy plate can be corrected during the stamping process, ensuring that the aluminum alloy plate always maintains an accurate position during the stamping process, and avoiding the problem of reduced production efficiency caused by the need for the stamping machine to stop for adjustment due to position offset; The position of the aluminum alloy plate is corrected by the centering assembly. Accurate position correction can make the aluminum alloy plate receive uniform force during stamping, thereby promoting uniform deformation of the metal structure inside the high-strength aluminum alloy forging. At the same time, for the production of aerospace parts, it can ensure that the stamped high-strength aluminum alloy forging is not affected by the position deviation of the aluminum alloy plate. During the stamping process of the aluminum alloy plate, the upper and lower abutment plates clamp the edges of the aluminum alloy plate, which can effectively prevent the edges of the aluminum alloy plate from warping, and effectively avoid the dimensional deviations of length, width, thickness, hole diameter, hole spacing, etc. caused by warping. This allows the stamped products to accurately meet the design dimensional requirements, ensuring the finished product rate and good product rate of high-strength aluminum alloy forgings for aerospace use; The clamping distance between the upper abutment plate and the lower abutment plate is adjusted by the elastic contraction of the spring 4, so that the edge clamping assembly can adapt to the aluminum alloy plates of different thicknesses, ensuring that the edge clamping assembly can provide a stable and reliable anti-warping effect for the aluminum alloy plates of different thicknesses; When the aluminum alloy plate or the bottom die or top die is broken and causes fragments to fly, the shielding parts enclosed on the four sides of the aluminum alloy plate can block the flying fragments within the internal space of the stamping machine to prevent them from flying to the area where the operators and other equipment are located, greatly reducing the risk of accidental injury to the operators and surrounding equipment, and ensuring the continuity and stability of the stamping work of high-strength aluminum alloy forgings for aerospace. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of the overall device of the present invention; Figure 2 It is a transverse cross-sectional schematic diagram of the centering assembly of the present invention; Figure 3 For the present invention Figure 2 The enlarged schematic diagram at A in the middle; Figure 4 For the present invention Figure 3 The enlarged schematic diagram of point B in the middle; Figure 5 It is a vertical cutaway schematic diagram of the centering assembly of the present invention; Figure 6 For the present invention Figure 5 The enlarged schematic diagram at C in the middle; Figure 7 For the present invention Figure 5 The enlarged schematic diagram at D in the middle; Figure 8 It is an enlarged schematic diagram of the protection component of the present invention; Fig. 9 It is a schematic diagram of the explosion of the protective component structure of the present invention.

[0019] In the figure: 11, punching machine; 12, punching seat; 13, bottom die; 14, top die; 15, spring pin; 16, aluminum alloy plate; 21. Pressing plate; 22. Pushing plate; 23. Telescopic rod 1; 24. Spring 1; 25. Side abutment plate; 26. Slot 1; 27. Sliding block; 28. Spring 2; 29. ​​Support block; 210. Telescopic tube 2; 211. Spring 3; 31. upper abutment plate; 32. bottom block; 33. telescopic rod three; 34. lower abutment plate; 35. spring four; 41. Through slot; 42. Counterweight; 43. Folding baffle; 44. Slot 2; 45. Shielding member; 46. Connecting rod. DETAILED DESCRIPTION

[0020] 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.

[0021] Embodiments provided by the present invention: Example 1: Please refer to Figures 1 to 6 As shown, a high-strength aluminum alloy forging stamping machine for aerospace is used for a stamping machine 11 and an aluminum alloy plate 16. The stamping machine 11 includes a stamping seat 12, a bottom die 13, a top die 14, and a spring pin 15. The stamping seat 12 is slidably connected to the stamping machine 11. The stamping seat 12 is connected to the top lower surface of the stamping machine 11 through a hydraulic rod. The bottom die 13 is installed on the bottom upper surface of the stamping machine 11, and the top die 14 is installed on the lower surface of the stamping seat 12. Four spring pins 15 are arranged on the top surface of the bottom die 13, and the aluminum alloy plate 16 is placed on the telescopic ends of the four spring pins 15.

[0022] Among them: Reference Figure 1 As shown, for ease of understanding of the position, the position of the punching machine 11 is taken as the center, the direction marked a is the front side, b is the rear side, c is the left side, and d is the right side.

[0023] Wherein: the bottom mold 13 and the top mold 14 correspond vertically.

[0024] The upper surface of the bottom of the punching machine 11, that is, the plane on which the bottom die 13 is installed, is set as the working surface.

[0025] The punching machine 11 is provided with a centering component for aligning the aluminum alloy plate 16 with the bottom die 13 and the top die 14. The centering component includes four pressing plates 21. The four pressing plates 21 are fixedly connected to the side wall of the punching seat 12 in a rectangular array. Four push plates 22 are arranged in a rectangular array on the working surface of the punching machine 11. The four push plates 22 are all in contact with the edge of the working surface of the bottom die 13. A telescopic rod 23 is fixedly connected to the top surface of one end of the four push plates 22 close to the bottom die 13. A spring 24 is arranged inside each of the four telescopic rods 23. The two ends of the four springs 24 are fixedly connected to the telescopic rod 23 and the push plate 22 respectively. A side abutment plate 25 is fixedly connected to the telescopic end of the four telescopic rods 23 close to the side of the bottom die 13. Figure 3As shown, two grooves 1 26 are symmetrically provided on the working surface of the punching machine 11, and a slider 27 is slidably connected inside each of the two grooves 1 26. A spring 28 is fixedly connected to each end of the two sliders 27 away from the bottom die 13. The two springs 28 are fixedly connected to the inner side wall of the adjacent groove 1 26 away from the bottom die 13. The two sliders 27 are fixedly connected to the bottom surface of the adjacent push plate 22. It should be noted that the two sliders 27 are connected to the two push plates 22 on the left and right sides of the working surface of the punching machine 11. Figure 6 As shown, the bottom surfaces of the two push plates 22 located on the front and rear sides of the working surface of the punch 11 are each fixedly connected with a support block 29, and the two support blocks 29 are each fixedly connected with a telescopic tube 210 between the side close to the bottom mold 13 and the punch 11, the fixed end of the telescopic tube 210 is connected to the punch 11, and the telescopic end of the telescopic tube 210 is connected to the support block 29, and a spring 3 211 is respectively arranged inside the two telescopic tubes 210, and the two ends of the two springs 3 211 are respectively fixedly connected to the connected support block 29 and the punch 11.

[0026] Among them: the four push plates 22 correspond vertically to the four pressure plates 21 respectively, refer to Figure 3 , Figure 7 As shown, the bottom surface of the pressing plate 21 is set as an inclined surface, and the end of the pushing plate 22 away from the bottom mold 13 is set as an inclined surface, and the inclined surface of the pressing plate 21 is pressed and matched with the inclined surface of the pushing plate 22.

[0027] Wherein: the telescopic end of the telescopic rod 23 and the telescopic end of the spring pin 15 are in the same horizontal plane.

[0028] When the aluminum alloy plate 16 is placed on the telescopic ends of the four spring pins 15 , the aluminum alloy plate 16 is located on the moving path of the side abutment plate 25 .

[0029] When the centering assembly is in use, the aluminum alloy plate 16 is placed on the telescopic ends of the four spring pins 15 , and then the staff starts the hydraulic rod to move the punching seat 12 on the punching machine 11 toward the aluminum alloy plate 16 .

[0030] When the punching seat 12 moves down to the point where the pressing plate 21 contacts the inclined surface of the push plate 22, the inclined surfaces of the pressing plate 21 and the push plate 22 contact each other. As the punching seat 12 continues to press down, the pressing plate 21 pushes the push plate 22 toward the bottom die 13. Figure 3 As shown, the two push plates 22 located on the left and right sides of the working surface of the punch 11 slide in the groove 26 toward the bottom die 13 through the slider 27, so that the spring 28 is elastically stretched. Figure 6 As shown, two push plates 22 located at the front and rear sides of the working surface of the punching machine 11 apply pressure to the telescopic tube 210 in the direction of the bottom mold 13 through the support block 29, so that the spring 3 211 is elastically compressed.

[0031] Furthermore, at this time, by the four pressure plates 21 following the synchronous downward pressing of the stamping seat 12, the four telescopic rods 23 can be synchronously displaced toward the bottom mold 13, that is, the four telescopic rods 23 drive the side abutment plates 25 to gather toward the center of the bottom mold 13. During this process, the four side abutment plates 25 abut the four sides of the aluminum alloy plate 16, and correct the offset aluminum alloy plate 16 to be parallel and fit with the four sides of the four side abutment plates 25 until the aluminum alloy plate 16 is corrected. At this time, the stamping seat 12 drives the top mold 14 to move down to abut the aluminum alloy plate 16, and applies pressure to the aluminum alloy plate 16, so that the aluminum alloy plate 16 is stamped out according to the established mold shapes on the top mold 14 and the bottom mold 13. During the stamping process, the spring pin 15 is driven to elastically shrink. After the stamping is completed, the spring pin 15 elastically resets to demold the aluminum alloy plate 16 from the inside of the bottom mold 13.

[0032] When the stamping is completed, the stamping seat 12 drives the pressure plate 21 to move upward and reset until the pressure plate 21 no longer contacts the push plate 22. At this time, under the elastic reset action of the two springs 28 and the two springs 3 211, the four push plates 22 are all reset, that is, the four side abutment plates 25 no longer fit the four sides of the aluminum alloy plate 16. At this time, the staff takes out the stamped aluminum alloy plate 16.

[0033] In the above process, the four side abutment plates 25 abut against the four sides of the aluminum alloy plate 16, and the offset aluminum alloy plate 16 is corrected to be parallel to the four sides of the four side abutment plates 25, so that the position of the offset aluminum alloy plate 16 can be corrected during the stamping process, which can ensure that the aluminum alloy plate 16 always maintains an accurate position during the stamping process, and can avoid the problem of reduced production efficiency caused by the need for the stamping machine 11 to stop for adjustment due to position offset; At the same time, the position of the aluminum alloy plate 16 is corrected by the centering component. Accurate position correction can make the aluminum alloy plate 16 be subjected to uniform force during stamping, thereby promoting uniform deformation of the metal structure inside the high-strength aluminum alloy forging. At the same time, for the production of aerospace parts, it can ensure that the yield of the stamped high-strength aluminum alloy forgings is not affected by the position offset of the aluminum alloy plate 16.

[0034] Embodiment 2: Since most of the existing high-strength aluminum alloy forgings for aerospace use are special-shaped parts with complex and diverse shapes, different parts of the aluminum alloy plate 16 will be subjected to uneven tensile and compressive stresses during the stamping process, which will cause local stress concentration at these parts of the aluminum alloy plate 16 during stamping, thereby affecting the deformation of the surrounding materials and causing warping at the edges of the aluminum alloy plate 16. When the aluminum alloy plate 16 warps, its edge portion will undergo additional elongation or shortening in the length direction, causing the length of the stamped part to exceed the design tolerance range, which will result in an increased scrap rate.

[0035] Reference Figures 2 to 4As shown, in order to solve the above-mentioned problems, a edge clamping assembly is further provided on each of the four side abutment plates 25, and the edge clamping assembly is used to prevent the aluminum alloy plate 16 from warping. The edge clamping assembly includes an upper abutment plate 31, and the upper abutment plate 31 is fixedly connected to the side of the side abutment plate 25 close to the bottom mold 13, and the bottom of the side of the side abutment plate 25 close to the upper abutment plate 31 is fixedly connected to a bottom block 32, and the top of the bottom block 32 is fixedly connected to a telescopic rod three 33, and the telescopic end of the telescopic rod three 33 is fixedly connected to a lower abutment plate 34, and a spring four 35 is provided inside the telescopic rod three 33, and the two ends of the spring four 35 are respectively fixedly connected to the lower abutment plate 34 and the bottom block 32.

[0036] Wherein: the upper abutment plate 31 and the lower abutment plate 34 are arranged at a side away from the side abutment plate 25 as inclined surfaces facing each other.

[0037] Among them: Reference Figure 3 As shown, the bottom mold 13 is provided with a groove which fits with the lower abutment plate 34 .

[0038] The edge clamping assembly and the centering assembly work together, that is, when the side abutment plate 25 abuts the edge of the aluminum alloy plate 16, the aluminum alloy plate 16 will abut the inclined surfaces of the upper abutment plate 31 and the lower abutment plate 34, so that the lower abutment plate 34 elastically compresses the spring four 35 downward, and the aluminum alloy plate 16 enters between the upper abutment plate 31 and the lower abutment plate 34, forming the upper abutment plate 31 and the lower abutment plate 34 to clamp the edge of the aluminum alloy plate 16.

[0039] During the process of stamping the aluminum alloy plate 16 by the punching machine 11, the lower surface of the punching seat 12 abuts against the upper abutment plate 31, and the lower abutment plate 34 is embedded in the groove on the bottom die 13. At this time, the aluminum alloy plate 16 is fitted with the bottom die 13, and the spring pin 15 and the spring 24 are elastically compressed, thereby forming a process in which the upper abutment plate 31 and the lower abutment plate 34 clamp the edge of the aluminum alloy plate 16 during the stamping of the aluminum alloy plate 16, which can effectively prevent the edge of the aluminum alloy plate 16 from warping, and effectively avoid dimensional deviations such as length, width, thickness, aperture, and hole spacing caused by warping. This enables the stamped products to accurately meet the design size requirements, ensuring the yield and good rate of high-strength aluminum alloy forgings for aerospace.

[0040] At the same time, the clamping distance between the upper support plate 31 and the lower support plate 34 is adjusted by the elastic contraction of the spring four 35, so that the edge clamping assembly can adapt to the aluminum alloy plates 16 of different thicknesses, ensuring that the edge clamping assembly can provide a stable and reliable anti-warping effect for the aluminum alloy plates 16 of different thicknesses.

[0041] When the stamping is completed, that is, the stamping seat 12 rises and the aluminum alloy plate 16 is removed from the upper support plate 31 and the lower support plate 34, the spring 1 24 elastically stretches to drive the telescopic rod 1 23 to reset, and the spring 4 35 elastically stretches to drive the telescopic rod 3 33 to reset.

[0042] Embodiment 3: Stamping will cause the aluminum alloy plate 16 to be subjected to a huge impact force in a very short period of time, which is prone to produce excessive stress locally, resulting in material rupture and splashing, especially for the thinner aluminum alloy plate 16. Due to its smaller inertia, it is more susceptible to the influence of high-speed stamping and splashing. At the same time, during the stamping process, mold explosion may also occur. This is because the structural strength of the mold is insufficient and cannot withstand the maximum stamping pressure during the stamping process. Material splashing will also occur. The splashing fragments will cause serious physical harm to the surrounding operators. At the same time, the splashing fragments may hit the surrounding equipment, causing equipment failure, affecting the normal stamping work of high-strength aluminum alloy forgings for aerospace.

[0043] Reference Figure 1 , Figure 2 as well as Figures 7 to 9 As shown, in order to solve the above-mentioned problems, a protective component is provided on each of the four pressure plates 21, and the protective component is used to intercept flying debris. The protective component includes a through slot 41, and the through slot 41 is opened on the vertical surface of the pressure plate 21. A counterweight block 42 is slidably connected inside the through slot 41, and a folding baffle 43 is fixedly connected to the upper and lower surfaces of the counterweight block 42, and the ends of the two folding baffles 43 away from each other are respectively fixedly connected to the upper and lower inner walls of the through slot 41, and two grooves 44 are symmetrically opened on the vertical surface of the pressure plate 21, and a shielding member 45 is fixedly connected inside each of the two grooves 44, and two connecting rods 46 are symmetrically rotatably connected to the counterweight block 42, and the ends of the two connecting rods 46 away from the counterweight block 42 are respectively rotatably connected to the top of the adjacent shielding member 45.

[0044] Among them: Reference Figure 7 As shown, the shielding member 45 is composed of a plurality of Z-shaped plates, and the plurality of Z-shaped plates are slidably connected to each other to form a structure similar to a multi-section telescopic rod. The setting function of the plurality of Z-shaped plates is that when one of the Z-shaped plates moves to the outermost side, it can hook the adjacent Z-shaped plates to move together.

[0045] The two folding baffles 43 are used to prevent debris from splashing from the inside of the through slot 41 to the outside. The folding baffles 43 are composed of a plurality of aluminum alloy plates, and the plurality of aluminum alloy plates are hinged to each other to form a folding door curtain structure similar to the existing one. Aluminum alloy has the characteristics of light weight and high strength. Figure 7 As shown in , since the counterweight block 42 is located at the bottom of the through slot 41 , the folding baffle 43 at the top of the counterweight block 42 is extended, and the folding baffle 43 at the bottom of the counterweight block 42 is contracted.

[0046] The protection component and the centering component work together, that is, in the process of the push plate 22 and the inclined surface of the pressure plate 21 being attached and sliding, when the push plate 22 slides to the vertical surface position of the pressure plate 21, the pressure plate 21 is in a state of motion in which the vertical surface contacts the push plate 22 and continues to slide downward, and then the push plate 22 contacts the counterweight block 42, causing the counterweight block 42 to move upward inside the through groove 41. As the counterweight block 42 is lifted, the two connecting rods 46 gradually move downward and rotate from the inclined state to the horizontal state, so that the end of the connecting rod 46 is away from the counterweight block 42, driving the shielding member 45 to extend in the direction away from the counterweight block 42, that is, multiple Z-shaped plates move outward one by one. It extends continuously in the direction away from the counterweight block 42. At this time, multiple Z-shaped plates on both sides of the pressure plate 21 extend to form a "fence"-like, which can be enclosed on the four sides of the aluminum alloy plate 16 during the stamping process of the aluminum alloy plate 16. When the aluminum alloy plate 16 or the bottom mold 13 and the top mold 14 are broken and cause fragments to fly, the shielding parts 45 enclosed on the four sides of the aluminum alloy plate 16 can block the flying fragments in the internal space of the punching machine 11 to prevent them from flying to the area where the operator and other equipment are located, which greatly reduces the risk of accidental injury to the operator and peripheral equipment, and ensures the continuity and stability of the stamping work of high-strength aluminum alloy forgings for aerospace.

[0047] When the stamping is completed, that is, the stamping seat 12 rises and the pressing plate 21 and the pushing plate 22 no longer conflict with each other, the counterweight block 42 slides downward in the through slot 41 under the action of gravity, so that the shielding members 45 on both sides shrink inward and return to their original positions.

[0048] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0049] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-strength aluminum alloy forging press for aerospace, used for a press (11) and an aluminum alloy plate (16), the press (11) comprising a press seat (12), a bottom die (13), a top die (14), and a spring pin (15), the press seat (12) being slidably connected to the press (11), the press seat (12) being connected to the top lower surface of the press (11) via a hydraulic rod, the bottom die (13) being mounted on the bottom upper surface of the press (11), the top die (14) being mounted on the lower surface of the press seat (12), the top surface of the bottom die (13) being provided with four spring pins (15), the aluminum alloy plate (16) being placed on the telescopic ends of the four spring pins (15), characterized in that: The punching machine (11) is provided with a centering component for aligning the aluminum alloy plate (16) with the bottom die (13) and the top die (14), the centering component comprising four pressing plates (21), the four pressing plates (21) being fixedly connected to the side wall of the punching seat (12) in a rectangular array, the working surface of the punching machine (11) being provided with four push plates (22) in a rectangular array, the four push plates (22) being in contact with the edge of the working surface of the bottom die (13), the top surface of one end of the four push plates (22) close to the bottom die (13) being fixedly connected with a telescopic rod (23), the inside of each of the four telescopic rods (23) being provided with a spring (24), the telescopic ends of the four telescopic rods (23) being close to the bottom die A side abutment plate (25) is fixedly connected to one side of each of the two push plates (22) located at the front and rear sides of the working surface of the punch (11); two grooves (26) are symmetrically provided on the working surface of the punch (11); a slider (27) is slidably connected inside each of the two grooves (26); a spring (28) is fixedly connected to one end of each of the two sliders (27) away from the bottom die (13); a support block (29) is fixedly connected to the bottom surface of each of the two push plates (22) located at the front and rear sides of the working surface of the punch (11); a telescopic tube (210) is fixedly connected between one side of the two support blocks (29) close to the bottom die (13) and the punch (11); and a spring (211) is provided inside each of the two telescopic tubes (210).

2. A high-strength aluminum alloy forging punching machine for aerospace according to claim 1, characterized in that: A pressing edge assembly is provided on each of the four side abutment plates (25), and the pressing edge assembly comprises an upper abutment plate (31), the upper abutment plate (31) is fixedly connected to a side of the side abutment plate (25) close to the bottom mold (13), a bottom block (32) is fixedly connected to the bottom of the side abutment plate (25) close to the upper abutment plate (31), a top of the bottom block (32) is fixedly connected to a telescopic rod three (33), a telescopic end of the telescopic rod three (33) is fixedly connected to a lower abutment plate (34), and a spring four (35) is provided inside the telescopic rod three (33).

3. The high-strength aluminum alloy forging punching machine for aerospace according to claim 1, characterized in that: Each of the four pressure plates (21) is provided with a protective component, the protective component comprising a through slot (41), the through slot (41) being opened on the vertical surface of the pressure plate (21), a counterweight block (42) being slidably connected inside the through slot (41), a folding baffle plate (43) being fixedly connected to each of the upper and lower surfaces of the counterweight block (42), two slots (44) being symmetrically opened on the vertical surface of the pressure plate (21), a shielding member (45) being fixedly connected inside each of the two slots (44), and two connecting rods (46) being symmetrically rotatably connected to the counterweight block (42).

4. The high-strength aluminum alloy forging punching machine for aerospace according to claim 1, characterized in that: The two ends of the four springs 1 (24) are respectively fixedly connected to the telescopic rod 1 (23) and the push plate (22), the two springs 2 (28) are fixedly connected to the inner side wall of the adjacent groove 1 (26) away from the bottom mold (13), and the two sliders (27) are fixedly connected to the bottom surface of the adjacent push plate (22).

5. The high-strength aluminum alloy forging punching machine for aerospace according to claim 1, characterized in that: The two ends of the two springs three (211) are respectively fixedly connected to the connected support block (29) and the punching machine (11).

6. The high-strength aluminum alloy forging punching machine for aerospace according to claim 1, characterized in that: The four push plates (22) are respectively vertically corresponding to the four pressing plates (21); the bottom surface of the pressing plate (21) is arranged as an inclined surface; one end of the push plate (22) away from the bottom mold (13) is arranged as an inclined surface; the inclined surface of the pressing plate (21) is pressed and matched with the inclined surface of the push plate (22).

7. The high-strength aluminum alloy forging punching machine for aerospace according to claim 2, characterized in that: The two ends of the spring four (35) are respectively fixedly connected to the lower abutment plate (34) and the bottom block (32).

8. The high-strength aluminum alloy forging punching machine for aerospace according to claim 7, characterized in that: The upper abutment plate (31) and the lower abutment plate (34) are arranged with inclined surfaces facing each other on the sides away from the side abutment plate (25), and the bottom mold (13) is provided with a groove that fits with the lower abutment plate (34).

9. The high-strength aluminum alloy forging punching machine for aerospace according to claim 3, characterized in that: The ends of the two folding baffles (43) that are away from each other are fixedly connected to the upper and lower inner side walls of the through slot (41), and the ends of the two connecting rods (46) that are away from the counterweight block (42) are rotatably connected to the top ends of adjacent shielding members (45).

10. The high-strength aluminum alloy forging punching machine for aerospace according to claim 3, characterized in that: The shielding member (45) is composed of a plurality of Z-shaped plates, and the plurality of shielding members (45) are mutually limitedly slidably connected.

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