Punching device and punching method for machining and producing aerospace aluminum alloy forgings

Abstract

The invention provides a punching device and method for aerospace aluminum alloy forge piece machining and production, and belongs to the technical field of forge piece manufacturing. The punching device comprises a first supporting frame, connecting frames are fixedly installed on the two sides of the first supporting frame, and a shell is installed on the connecting frames; a first fixing ring, a second fixing ring and a first fixing rod are sequentially and fixedly connected in the shell from top to bottom, fixing assemblies are installed on the periphery in the first supporting frame, a through hole is formed in the middle of the first supporting frame, a forge piece body is placed on the second fixing ring, and a third fixing ring is fixedly connected to the first fixing rod. A first connecting assembly is arranged in the middle of the third fixing ring. The forge piece punching device solves the problems that an existing forge piece punching device cannot conduct leveling treatment on the hole wall while punching is achieved through a forging and pressing structure, and the two working modes that punching and hole wall leveling are conducted synchronously or only punching is conducted cannot be switched.

Description

Technical Field

[0001] The invention relates to the technical field of forging manufacturing, and in particular to a punching device and a punching method for processing and producing aerospace aluminum alloy forgings. Background Art

[0002] Aerospace aluminum alloy forgings refer to a special type of processed parts used in the aerospace field, which are usually manufactured through a forging process. In order to improve the mechanical properties and lightweight of the forgings, a punching device is required. The existing aluminum alloy forging punching devices still have some shortcomings.

[0003] For example, the punching device and punching method for forging processing and production disclosed in publication number CN117983760A, the punching drive unit is linked with the pushing drive unit, when the push plate stops pushing the forging to be punched, the punching drive unit drives the puncher to punch the forging to be punched. The workbench is supported by the base, the forging to be punched is placed on the workbench, the forging to be punched is intermittently pushed to the punching mechanism by the pushing mechanism installed on the workbench, and the punching mechanism punches the forging to be punched through the punching assembly. Since the pushing of the pushing mechanism is intermittent, the punching mechanism can punch during the time when it stops pushing. Thus, the steps of pushing to punching can be repeated to realize continuous punching of the forging to be punched, on the one hand, replacing the manual pushing of the forging, reducing the labor burden, and greatly improving the overall punching efficiency. Although the above device can realize the continuous punching function, it cannot use the forging structure to realize the punching while leveling the hole wall, and it cannot switch between the two working modes of punching and leveling the hole wall simultaneously or only punching. Summary of the invention

[0004] In view of the problems existing in the existing forging punching device, the present invention is proposed.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a punching device for processing and producing aerospace aluminum alloy forgings, comprising a first support frame, connecting frames are fixedly installed on both sides of the first support frame, a shell is installed on the connecting frame, a first fixing ring, a second fixing ring and a first fixing rod are fixedly connected in sequence from top to bottom in the shell, fixing components are installed around the first support frame, a through hole is opened in the middle of the first support frame, a forging body is placed on the second fixing ring, a third fixing ring is fixedly connected to the first fixing rod, a first connecting component is arranged in the middle of the third fixing ring, and the third fixing ring is fixedly connected to the first fixing rod. A lap plate is welded on the ring, and a first motor is fixedly mounted on the lap plate. A winding wheel is connected to the output shaft of the first motor, and a first traction steel cable is fixedly connected to the winding wheel. A pull ring is connected to the top of the first traction steel cable, and a second traction steel cable is connected to the pull ring. The second traction steel cable is connected to the first pressure ring through the guidance of the first guide wheel. The first guide wheel and the second fixed ring are rotatably connected. A docking assembly is installed around the pull ring, a second guide wheel is rotatably mounted on the first fixed ring, a second connecting assembly is installed below the second fixed ring, and a forging assembly is placed below the first pressure ring.

[0006] As a preferred solution of the present invention, a first electric push rod is installed on the first support frame, and the first support frame, connecting frame, outer shell, first fixing ring, second fixing ring, first fixing rod, third fixing ring and lap plate are a whole, and the central axes of the outer shell, first fixing ring and second fixing ring are collinear.

[0007] As a preferred solution of the present invention, the fixing assembly includes a second electric push rod fixedly connected to the first support frame, a fixing plate fixedly connected to the second electric push rod, first connecting rods are slidably connected to both sides of the fixing plate, a first connecting shaft is fixedly connected to the first connecting rod, a pressure plate is rotatably connected to the outer side of the first connecting shaft, a connecting plate is hinged between two adjacent pressure plates, and the two adjacent connecting plates are hingedly connected.

[0008] As a preferred solution of the present invention, a guide frame is fixedly connected to the inner wall of the third fixing ring, and a middle cylinder for guiding the first connecting assembly is fixedly arranged in the middle of the guide frame.

[0009] As a preferred solution of the present invention, a buffer block is slidably installed in the pull ring, and a first spring is fixedly connected between the buffer block and the pull ring.

[0010] As a preferred solution of the present invention, the first connecting assembly includes a pressure rod slidably installed in the middle of the middle tube, a pressure block is fixedly connected to the bottom of the pressure rod, and the pressure rod is provided with a docking groove, a clamping groove and a rotation groove in sequence from top to bottom.

[0011] As a preferred solution of the present invention, the docking assembly includes an opening and an installation groove on the pull ring, an inner tube is placed in the opening, a first slide groove and a second slide groove are sequentially opened in the inner tube from top to bottom, a first convex ring is fixedly connected in the inner tube, a connecting block is fitted on the inner wall of the first convex ring, a second convex ring is fixedly connected below the connecting block, a third traction steel cable is fixedly connected to the top of the connecting block, the third traction steel cable is connected to the pressure rod via a second guide wheel, and the width of the installation groove is smaller than the diameter of the connecting block.

[0012] As a preferred solution of the present invention, the second connecting assembly includes a middle rod and a second support frame fixedly connected to the bottom of the second fixing ring, a second connecting rod is fixedly connected to the bottom of the second support frame, a fixing cylinder is fixedly connected to the bottom of the second connecting rod, a second connecting shaft is rotatably installed in the middle of the fixing cylinder, a second motor is fixedly installed at the bottom of the middle rod, an output shaft of the second motor is connected to the second connecting shaft, a clamping plate is fixedly connected to the bottom of the second connecting shaft, and the clamping plate and the fixing cylinder are not connected to each other.

[0013] As a preferred solution of the present invention, the forging assembly includes a second pressure ring placed under the first pressure ring, the second pressure ring is fixedly connected to a second fixing rod, the outer side of the second fixing rod is slidably connected to a support block, the upper side is fixedly connected to a protrusion for abutting against the pressure block, an inner groove is provided in the middle of the second pressure ring, a second spring is fixedly connected between two opposite support blocks, and the support block is suitable for sliding in a direction away from the second pressure ring when the pressure block abuts against the protrusion.

[0014] A punching method for processing and producing aerospace aluminum alloy forgings comprises the following steps:

[0015] S1: The first support frame, the connecting frame and the outer shell are used to support the whole device. The high-temperature forging body to be processed is placed in the middle of the first support frame by an external mechanical arm for punching. The winding wheel is driven to rotate by the first motor on the lap plate. The winding wheel pulls the first traction steel cable. The first traction steel cable is wound on the winding wheel and the pull ring is pulled at the same time;

[0016] S2: When the pull ring is pulled downward, the second traction steel cable and the docking assembly on the pull ring pull the first pressure ring and the first connecting assembly upward under the guidance of the first guide wheel and the second guide wheel, and the first connecting assembly can be docked with the second connecting assembly so that the first connecting assembly and the second fixing ring remain in a locked state. At this time, when the first motor stops working, the first pressure ring moves downward under its own gravity and hits the forging assembly, and the forging assembly impacts the middle of the forging body to punch a hole;

[0017] S3: After the punching is completed, the connection state between the second connecting component and the first connecting component is cancelled, and the first motor is started again to wind the first traction cable on the winding wheel, so that the first pressing ring is at the top of the impact forging component, and the bottom of the first connecting component moves to the inside of the impact forging component, and acts on the impact forging component to expand outward, completing the flattening of the hole wall after punching.

[0018] S4: When the function of leveling the hole wall of the forging body is not needed, the second connecting component can be docked with the first connecting component, and then the docking component can be removed from the inside of the pull ring, and the hole can be punched only through the first pressure ring.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. By setting the first traction steel cable, the second traction steel cable, the pulling ring, the first guide wheel, the second guide wheel and the first connecting assembly, when the first connecting assembly is not docked with the second connecting assembly, the first motor drives the winding wheel to rotate, and the first traction steel cable is wound on the winding wheel. Under the guidance of the first guide wheel, the second guide wheel, the second traction steel cable and the third traction steel cable, the first connecting assembly and the first pressing ring can be pulled upward. After the first motor stops working, the first pressing ring and the pressing block on the first connecting assembly can move downward under the action of their own gravity, and the first pressing ring hits the top of the forging assembly, and the pressing block can push the supporting block on the forging assembly outward. When the supporting block moves outward, it can level the hole wall of the forging, thereby realizing the function of automatically leveling the hole wall while punching, and solving the problem that the existing forging punching device cannot use the forging structure to achieve punching and leveling the hole wall at the same time.

[0021] 2. Through the second connecting component on the device, when the leveling function is not in use, the first traction steel cable is wound on the winding drum through the first motor, thereby pulling the pull ring and the pressure rod on the first connecting component upward, moving the card plate to the inside of the rotating groove, and then driving the second connecting shaft and the card plate clockwise or counterclockwise 90° through the second motor. The card plate can be aligned with the card slot so that the card plate and the card slot are stably docked, and then the docking assembly is removed from the pull ring. At this time, when the first motor pulls the pull ring up and down, the pressure rod on the first connecting component is not affected, thereby disabling the punching function, which solves the problem that the existing forging punching device cannot switch between the two working modes of punching and leveling the hole wall simultaneously or only punching.

[0022] 3. By setting up the fixing assembly, when the second electric push rod is extended, the pressing plate and the connecting plate can move toward the direction of the forging, so that the forging can be pressed by the fixing assemblies on all sides, and the connecting plate can form a certain arc with the pressing plates on both sides, thereby realizing the function of stable fixation of the forging on all sides. The device can adapt to the pressing and fixing work of forgings of different sizes and shapes before punching.

[0023] 4. By setting the first spring and buffer block, when the first pressure ring moves downward quickly and drives the pull ring to move upward, the top of the pressure ring can be buffered during impact, avoiding the exercise of the second traction cable on the device and ensuring the stability of the device during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail below in combination with the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0025] Figure 1 It is a schematic diagram of the overall structure of a punching device for processing and producing aerospace aluminum alloy forgings of the present invention;

[0026] Figure 2 It is a schematic diagram of the connection structure between the first support frame and the fixing assembly of the present invention;

[0027] Figure 3 It is a schematic diagram of the connection structure of the first fixing ring and the second fixing ring of the present invention;

[0028] Figure 4 yes Figure 3 A magnified schematic diagram of the structure at center A;

[0029] Figure 5 yes Figure 3 A magnified schematic diagram of the structure at B in the middle;

[0030] Figure 6 It is a schematic diagram of the internal structure of the forging assembly of the present invention;

[0031] Figure 7 It is a schematic diagram of the connection structure between the second pressure ring and the second fixing rod of the present invention;

[0032] Figure 8 It is a schematic diagram of the connection structure between the first fixing ring and the second guide wheel of the present invention;

[0033] Fig. 9 It is a schematic diagram of the connection structure of the pull ring and the docking assembly of the present invention;

[0034] Fig.10 It is a schematic diagram of the split structure of the pressure rod and the clamping plate of the present invention;

[0035] Fig.11 It is a schematic diagram of the internal structure of the docking groove and the rotating groove of the present invention;

[0036] Fig.12 It is a schematic diagram of the connection structure between the fixing cylinder and the second connecting rod of the present invention.

[0037] 1. First support frame; 2. Connecting frame; 3. Outer shell; 4. First fixing ring; 5. Second fixing ring; 6. First electric push rod; 7. Fixing assembly; 701. Second electric push rod; 702. Fixing plate; 703. First connecting rod; 704. First connecting shaft; 705. Pressing plate; 706. Connecting plate; 8. Through hole; 9. Forging body; 10. First fixing rod; 11. Third fixing ring; 12. Lapping plate; 13. First motor; 14. Winding wheel; 15. First traction steel cable; 16. Pull ring; 17. Guide frame; 18. Middle cylinder; 19. First connecting assembly; 1901. Pressing rod; 1902. Pressing block; 1903. Docking groove; 1904. Card groove; 1905. Rotating groove; 20. Docking assembly; 2001. Third traction steel cable; 2006. 02, connecting block; 2003, first slide groove; 2004, first convex ring; 2005, second convex ring; 2006, inner tube; 2007, opening; 2008, mounting groove; 2009, second slide groove; 21, second traction cable; 22, second connecting assembly; 2201, middle rod; 2202, second motor; 2203, second connecting shaft; 2204, clamping plate; 2205, fixing tube; 2206, second connecting rod; 2207, second supporting frame; 23, first guide wheel; 24, second guide wheel; 25, first spring; 26, buffer block; 27, forging assembly; 2701, second pressure ring; 2702, second fixing rod; 2703, supporting block; 2704, convex block; 2705, inner groove; 2706, second spring; 28, first pressure ring. DETAILED DESCRIPTION

[0038] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0039] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0040] Secondly, the present invention is described in detail with reference to schematic diagrams. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0041] Example

[0042] In order to make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0043] like Figure 1-Figure 12As shown, a punching device for processing and producing aerospace aluminum alloy forgings includes a first support frame 1, connecting frames 2 are fixedly installed on both sides of the first support frame 1, a shell 3 is installed on the connecting frame 2, a first fixing ring 4, a second fixing ring 5 and a first fixing rod 10 are fixedly connected in sequence from top to bottom in the shell 3, a fixing assembly 7 is installed around the first support frame 1, a through hole 8 is opened in the middle of the first support frame 1, a forging body 9 is placed on the second fixing ring 5, the fixing assembly 7 is used to press and fix the forging body 9 so that the subsequent punching work can be carried out stably, and a third fixing ring 5 is fixedly connected to the first fixing rod 10. Ring 11, a first connecting assembly 19 is arranged in the middle of the third fixed ring 11, a lap plate 12 is welded on the third fixed ring 11, a first motor 13 is fixedly installed on the lap plate 12, a winding wheel 14 is connected to the output shaft of the first motor 13, a first traction steel cable 15 is fixedly connected to the winding wheel 14, a pull ring 16 is connected to the top of the first traction steel cable 15, a second traction steel cable 21 is connected to the pull ring 16, the second traction steel cable 21 is connected to the first pressure ring 28 through the guidance of the first guide wheel 23, the first guide wheel 23 and the second fixed ring 5 are rotatably connected, and a docking assembly 20 is installed around the pull ring 16, The first connecting assembly 19 is used to dock with the docking assembly 20. After the top of the first connecting assembly 19 is kept fixed, the first motor 13 drives the winding wheel 14 to rotate, so that the first traction cable 15 is wound on the winding wheel 14, thereby pulling the pull ring 16 to move downward, and the first connecting assembly 19 is not affected. Under the action of the first guide wheel 23 and the second traction cable 21, the first pressure ring 28 moves upward. After the first motor 13 stops working, the first pressure ring 28 moves downward under its own gravity to punch the forging. When the first connecting assembly 19 is not connected to the second connecting assembly 22, as the pull ring 16 is pulled The first pressing ring 28 and the first connecting component 19 can be pulled upward at the same time, the second guide wheel 24 is rotatably installed on the first fixing ring 4, the second connecting component 22 is installed under the second fixing ring 5, and the forging component 27 is placed under the first pressing ring 28. After the first connecting component 19 falls, it acts on the forging component 27, and the forging component 27 can automatically expand while pressing down to punch the hole, thereby realizing the function of automatically leveling the hole wall while punching the hole. The first connecting component 19 can be fixed to the second fixing ring 5 through the second connecting component 22, so that the device can keep the first connecting component 19 fixed.

[0044] In this embodiment, a first electric push rod 6 is installed on the first support frame 1. The first support frame 1, the connecting frame 2, the outer shell 3, the first fixing ring 4, the second fixing ring 5, the first fixing rod 10, the third fixing ring 11 and the lap plate 12 are a whole, so that the device as a whole can be stably supported. The central axes of the outer shell 3, the first fixing ring 4 and the second fixing ring 5 are colinear to ensure the stability of the device during operation. The first electric push rod 6 facilitates the subsequent push-out of the forgings after punching.

[0045] In this embodiment, the fixing assembly 7 includes a second electric push rod 701 fixedly connected to the first support frame 1, a fixing plate 702 fixedly connected to the second electric push rod 701, first connecting rods 703 slidably connected to both sides of the fixing plate 702, a first connecting shaft 704 fixedly connected to the first connecting rod 703, a pressure plate 705 rotatably connected to the outer side of the first connecting shaft 704, a connecting plate 706 hingedly connected between two adjacent pressure plates 705, and a hinged connection between two adjacent connecting plates 706. By extending the second electric push rod 701, the connecting plate 706 is abutted against the forging, and the clamping structure composed of the connecting plate 706 and the pressure plate 705 can fit on the outer side of the forging, and the pressure plate 705 can rotate on the outer side of the first connecting shaft 704, and the first connecting rod 703 can slide on the fixing plate 702, so that the device can adapt to forgings of different sizes and shapes for clamping and fixing.

[0046] In this embodiment, a guide frame 17 is fixedly connected to the inner wall of the third fixed ring 11, and a middle tube 18 for guiding the first connecting component 19 is fixedly arranged in the middle of the guide frame 17 to ensure that the first connecting component 19 remains stable during the up and down movement, thereby enhancing the stability of the device during operation. The guide frame 17 is used to connect the third fixed ring 11 and the middle tube 18.

[0047] In this embodiment, a buffer block 26 is slidably installed in the pull ring 16, and a first spring 25 is fixedly connected between the buffer block 26 and the pull ring 16. When the device is punching a hole, the pull ring 16 will move upward quickly, so that the buffer block 26 on the pull ring 16 cooperates with the first spring 25 to achieve a buffering function, thereby enhancing the safety of the device when in use.

[0048] In this embodiment, the first connecting component 19 includes a pressure rod 1901 slidably installed in the middle of the middle cylinder 18, and a pressure block 1902 is fixedly connected to the bottom of the pressure rod 1901. The pressure rod 1901 is provided with a docking groove 1903, a clamping groove 1904 and a rotating groove 1905 from top to bottom. When the pressure rod 1901 moves downward, the pressure block 1902 can move downward and realize the pushing function, so as to subsequently level the hole wall after the punching hole is completed. The docking groove 1903, the clamping groove 1904 and the rotating groove 1905 facilitate the suspension and locking of the pressure rod 1901.

[0049] In this embodiment, the docking assembly 20 includes an opening 2007 and a mounting groove 2008 opened on the pull ring 16, an inner tube 2006 is placed in the opening 2007, a first slide groove 2003 and a second slide groove 2009 are opened in the inner tube 2006 from top to bottom, a first convex ring 2004 is fixedly connected to the inner tube 2006, a connecting block 2002 is fitted on the inner wall of the first convex ring 2004, a second convex ring 2005 is fixedly connected to the bottom of the connecting block 2002, a third traction steel cable 2001 is fixedly connected to the top of the connecting block 2002, and the third traction steel cable 2001 is connected to the third traction steel cable 2001 through the first The second guide wheel 24 is connected to the pressure rod 1901, and the width of the installation groove 2008 is smaller than the diameter of the connection block 2002. When the hole wall leveling function of the pressure rod 1901 is not used, the device can keep the third traction steel cable 2001 in a relaxed state, and the second convex ring 2005 slides downward in the second slide groove 2009 until the connection block 2002 is completely stored in the inner tube 2006. The installation groove 2008 can move the third traction steel cable 2001 out and take it out of the inner tube 2006 through the opening 2007, so that the pull ring 16 will not affect the third traction steel cable 2001 when it moves up and down. The first convex ring 2004 can support the first convex ring 2004 through the second convex ring 2005 when the connection block 2002 is pulled upward, so that the inner tube 2006 can always keep in contact with the pull ring 16, so that when the pull ring 16 is pulled downward, the pull ring 16 can drive the inner tube 2006 to move stably.

[0050] In this embodiment, the second connecting assembly 22 includes a middle rod 2201 fixedly connected to the bottom of the second fixing ring 5 and a second support frame 2207, a second connecting rod 2206 is fixedly connected to the bottom of the second support frame 2207, a fixing cylinder 2205 is fixedly connected to the bottom of the second connecting rod 2206, a second connecting shaft 2203 is rotatably installed in the middle of the fixing cylinder 2205, a second motor 2202 is fixedly installed at the bottom of the middle rod 2201, an output shaft of the second motor 2202 is connected to the second connecting shaft 2203, a clamping plate 2204 is fixedly connected to the bottom of the second connecting shaft 2203, the clamping plate 2204 and the fixing cylinder 2205 are not connected to each other, the second motor 2202 can drive the middle rod 2201 to rotate, thereby driving the clamping plate 2204 to rotate, so as to subsequently open or close the forging hole wall leveling function of the device. The second support frame 2207 suspends the fixed cylinder 2205 through the second connecting rod 2206, and the fixed cylinder 2205 can support the second connecting shaft 2203, so that the second connecting shaft 2203 and the second motor 2202 are not subjected to downward pulling force, thereby enhancing the functionality of the device.

[0051] In this embodiment, the forging assembly 27 includes a second pressing ring 2701 placed below the first pressing ring 28, a second fixing rod 2702 is fixedly connected to the second pressing ring 2701, a support block 2703 is slidably connected to the outer side of the second fixing rod 2702, a convex block 2704 for abutting against the pressing block 1902 is fixedly connected to the upper side, an inner groove 2705 is provided in the middle of the second pressing ring 2701, and a second spring 2706 is fixedly connected between the two opposing support blocks 2703. The support block 2703 is suitable for sliding in the direction away from the second pressure ring 2701 when the pressure block 1902 abuts against the protrusion 2704. The pressure block 1902 can abut against the protrusion 2704 during the downward movement, thereby pushing the support blocks 2703 around the second pressure ring 2701 outward. The second fixing rod 2702 can prevent the support block 2703 from detaching from the inside of the second pressure ring 2701, and the second spring 2706 facilitates the subsequent resetting of the support blocks 2703 at various locations.

[0052] It should be noted that the present invention is a punching device and a punching method for aerospace aluminum alloy forgings. First, Figure 1-Figure 5 As shown, the device supports the entire device through the first support frame 1, the connecting frame 2 and the shell 3, and uses an external mechanical arm to place the high-temperature forging body 9 to be processed in the middle of the first support frame 1 for punching. The subsequent punching surplus can be separated from the position of the through hole 8. By extending the second electric push rod 701, the connecting plate 706 is abutted against the forging body 9. The clamping structure composed of the connecting plate 706 and the pressing plate 705 can fit on the outside of the forging body 9, and the pressing plate 705 can rotate on the outside of the first connecting shaft 704. The first connecting rod 703 can slide on the fixing plate 702, so that the device can adapt to forgings of different sizes and shapes for clamping and fixing. The first motor 13 on the lap plate 12 is used to drive the winding wheel 14 to rotate, and the winding wheel 14 pulls the first traction steel cable 15. When the first traction steel cable 15 is wound on the winding wheel 14, the pull ring 16 will be pulled downward. When the pull ring 16 is pulled downward, the second traction steel cable 21 on the pull ring 16 pulls the first pressure ring 28 upward under the guidance of the first guide wheel 23 on the second fixed ring 5. When the pull ring 16 moves upward, the buffer block 26 can achieve buffering and protection functions through the first spring 25.

[0053] like Figure 1-Figure 9 As shown, the third traction cable 2001 on the docking assembly 20 pulls the pressure rod 1901 on the first connecting assembly 19 to move upward under the guidance of the second guide wheel 24 on the first fixing ring 4, and the second motor 2202 on the second connecting assembly 22 drives the middle rod 2201 to rotate and drives the clamping plate 2204 to rotate, as shown in FIG. Fig.10As shown by the arrow in , after the lower surface of the card plate 2204 is fitted with the bottom of the inner wall of the rotating groove 1905, the card plate 2204 is rotated 90° clockwise or counterclockwise. After the pressure rod 1901 moves downward, the top of the card plate 2204 is inserted into the interior of the card slot 1904, completing the suspension and fixing function of the pressure rod 1901. After the pressure rod 1901 is suspended, the pressure rod 1901 can remain fixed so that the subsequent leveling function of the hole wall of the forging body 9 can be turned on or off. The second support frame 2207 suspends the fixed cylinder 2205 through the second connecting rod 2206, and the fixed cylinder 2205 can support the second connecting shaft 2203, so that the second connecting shaft 2203 and the second motor 2202 are not subjected to downward pulling force, thereby realizing the protection function of the second motor 2202. The first connecting assembly 19 and the second fixing ring 5 remain locked. At this time, when the first motor 13 stops working, the first pressing ring 28 moves downward under its own gravity and hits the forging assembly 27. The second pressing ring 2701 and the supporting block 2703 on the forging assembly 27 impact the middle of the forging body 9 to punch a hole. When the hole wall leveling function of the pressing rod 1901 is not used, the pressing rod 1901 remains stationary during punching, the third traction steel cable 2001 remains relaxed, and the second convex ring 2005 slides downward in the second sliding groove 2009 until the connecting block 2002 is completely received in the inner cylinder 2006. The installation groove 2008 can move the third traction steel cable 2001 out and take it out of the inner cylinder 2006 through the opening 2007, so that the pull ring 16 will not affect the third traction steel cable 2001 when it moves up and down. The first convex ring 2004 can support the first convex ring 2004 through the second convex ring 2005 when the connecting block 2002 is pulled upward, so that the inner cylinder 2006 can always maintain an abutment state with the pull ring 16, so that when the pull ring 16 is subsequently pulled downward, the pull ring 16 can drive the inner cylinder 2006 to move stably.

[0054] like Figure 3-Figure 12 As shown, after the punching is completed, when the device needs to be switched to the function of punching and flattening the hole wall, the connection state between the second connecting component 22 and the first connecting component 19 is cancelled according to the reverse steps above, and then the inner cylinder 2006 is installed into the opening 2007 according to the reverse steps above, as shown in FIG. Fig. 9 As shown, after completing the connection between the pull ring 16 and the docking assembly 20, start the first motor 13 to wind the first traction cable 15 on the winding wheel 14, so that the first pressure ring 28 impacts the top of the second pressure ring 2701 on the forging assembly 27, and the bottom of the pressure block 1902 will abut against the protrusion 2704, and the support block 2703 moves outward through the second fixed rod 2702, so that the forging hole wall is leveled by the support block 2703, and the second spring 2706 facilitates the subsequent resetting of the support blocks 2703 at various locations.

[0055] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced by equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A punching device for aerospace aluminum alloy forging production, comprising a first support frame (1), characterized in that: A connecting frame (2) is fixedly installed on both sides of the first support frame (1), a shell (3) is installed on the connecting frame (2), a first fixing ring (4), a second fixing ring (5) and a first fixing rod (10) are fixedly connected in sequence from top to bottom in the shell (3), a fixing assembly (7) is installed around the first support frame (1), a through hole (8) is opened in the middle of the first support frame (1), a forging body (9) is placed on the second fixing ring (5), a third fixing ring (11) is fixedly connected to the first fixing rod (10), a first connecting assembly (19) is arranged in the middle of the third fixing ring (11), a lap plate (12) is welded to the third fixing ring (11), a first motor (13) is fixedly installed on the lap plate (12), and the first A winding wheel (14) is connected to the output shaft of the motor (13), a first traction steel cable (15) is fixedly connected to the winding wheel (14), a pull ring (16) is connected to the top of the first traction steel cable (15), a second traction steel cable (21) is connected to the pull ring (16), the second traction steel cable (21) is connected to the first pressure ring (28) through the guidance of the first guide wheel (23), the first guide wheel (23) and the second fixed ring (5) are rotatably connected, a docking assembly (20) is installed around the pull ring (16), a second guide wheel (24) is rotatably installed on the first fixed ring (4), a second connecting assembly (22) is installed below the second fixed ring (5), and a forging assembly (27) is placed below the first pressure ring (28).

2. A punching device for aerospace aluminum alloy forgings according to claim 1, characterized in that: A first electric push rod (6) is mounted on the first support frame (1); the first support frame (1), the connecting frame (2), the outer shell (3), the first fixing ring (4), the second fixing ring (5), the first fixing rod (10), the third fixing ring (11) and the lap plate (12) are an integral whole; the central axes of the outer shell (3), the first fixing ring (4) and the second fixing ring (5) are collinear.

3. The punching device for aerospace aluminum alloy forgings according to claim 1, characterized in that: The fixing assembly (7) comprises a second electric push rod (701) fixedly connected to the first support frame (1); a fixing plate (702) is fixedly connected to the second electric push rod (701); first connecting rods (703) are slidably connected to both sides of the fixing plate (702); a first connecting shaft (704) is fixedly connected to the first connecting rod (703); a pressure plate (705) is rotatably connected to the outer side of the first connecting shaft (704); a connecting plate (706) is hinged between two adjacent pressure plates (705); and two adjacent connecting plates (706) are hingedly connected.

4. The punching device for aerospace aluminum alloy forgings according to claim 1, characterized in that: A guide frame (17) is fixedly connected to the inner wall of the third fixing ring (11), and a middle cylinder (18) for guiding the first connecting assembly (19) is fixedly arranged in the middle of the guide frame (17).

5. The punching device for aerospace aluminum alloy forgings according to claim 1, characterized in that: A buffer block (26) is slidably mounted inside the pull ring (16), and a first spring (25) is fixedly connected between the buffer block (26) and the pull ring (16).

6. The punching device for aerospace aluminum alloy forgings according to claim 4, characterized in that: The first connecting component (19) comprises a pressure rod (1901) slidably mounted in the middle of the middle tube (18), a pressure block (1902) being fixedly connected to the bottom of the pressure rod (1901), and a docking groove (1903), a clamping groove (1904) and a rotation groove (1905) are sequentially provided on the pressure rod (1901) from top to bottom.

7. A punching device for aerospace aluminum alloy forgings according to claim 6, characterized in that: The docking assembly (20) comprises an opening (2007) and an installation groove (2008) provided on the pull ring (16); an inner cylinder (2006) is placed in the opening (2007); a first slide groove (2003) and a second slide groove (2009) are provided in the inner cylinder (2006) from top to bottom; a first convex ring (2004) is fixedly connected in the inner cylinder (2006); a connecting block (2002) is fitted on the inner wall of the first convex ring (2004); a second convex ring (2005) is fixedly connected below the connecting block (2002); a third traction steel cable (2001) is fixedly connected to the top of the connecting block (2002); the third traction steel cable (2001) is connected to the pressure rod (1901) via the guidance of a second guide wheel (24); and the width of the installation groove (2008) is smaller than the diameter of the connecting block (2002).

8. The punching device for aerospace aluminum alloy forgings according to claim 1, characterized in that: The second connecting assembly (22) comprises a middle rod (2201) fixedly connected to the bottom of the second fixing ring (5) and a second support frame (2207); a second connecting rod (2206) is fixedly connected to the bottom of the second support frame (2207); a fixing cylinder (2205) is fixedly connected to the bottom of the second connecting rod (2206); a second connecting shaft (2203) is rotatably installed in the middle of the fixing cylinder (2205); a second motor (2202) is fixedly installed at the bottom of the middle rod (2201); an output shaft of the second motor (2202) is connected to the second connecting shaft (2203); a clamping plate (2204) is fixedly connected to the bottom of the second connecting shaft (2203); and the clamping plate (2204) and the fixing cylinder (2205) are not connected to each other.

9. The punching device for aerospace aluminum alloy forgings according to claim 7, characterized in that: The forging assembly (27) includes a second pressure ring (2701) placed below the first pressure ring (28), the second pressure ring (2701) is fixedly connected to a second fixing rod (2702), the outer side of the second fixing rod (2702) is slidably connected to a support block (2703), the upper portion is fixedly connected to a protrusion (2704) for abutting against the pressure block (1902), an inner groove (2705) is provided in the middle of the second pressure ring (2701), a second spring (2706) is fixedly connected between two opposing support blocks (2703), and the support block (2703) is suitable for sliding in a direction away from the second pressure ring (2701) when the pressure block (1902) abuts against the protrusion (2704).

10. A punching method for aerospace aluminum alloy forgings, using the punching device for aerospace aluminum alloy forgings according to claim 1, characterized in that: The following steps are involved: S1: The first support frame (1), the connecting frame (2) and the outer shell (3) are used to support the entire device. The high-temperature forging body (9) to be processed is placed in the middle of the first support frame (1) by an external mechanical arm for punching. The first motor (13) on the lap plate (12) drives the winding wheel (14) to rotate, and the winding wheel (14) pulls the first traction steel cable (15). When the first traction steel cable (15) is wound on the winding wheel (14), the pull ring (16) is pulled. S2: When the pull ring (16) is pulled downward, the second traction steel cable (21) and the docking assembly (20) on the pull ring (16) pull the first pressure ring (28) and the first connecting assembly (19) upward under the guidance of the first guide wheel (23) and the second guide wheel (24), and the first connecting assembly (19) can be docked with the second connecting assembly (22), so that the first connecting assembly (19) and the second fixing ring (5) remain in a locked state. At this time, when the first motor (13) stops working, the first pressure ring (28) moves downward under the action of its own gravity and hits the forging assembly (27), and the forging assembly (27) impacts the middle of the forging body (9) to punch a hole; S3: After the punching is completed, the connection between the second connecting component (22) and the first connecting component (19) is cancelled, and the first motor (13) is started again to wind the first traction steel cable (15) on the winding wheel (14), so that the first pressure ring (28) is at the top of the impact forging component (27), and the bottom of the first connecting component (19) moves to the inside of the impact forging component (27) and acts on the impact forging component (27) so that the impact forging component (27) expands outward, completing the flattening of the hole wall after the punching. S4: When the function of leveling the hole wall of the forging body (9) is not needed, the second connecting component (22) can be docked with the first connecting component (19), and then the docking component (20) can be removed from the inside of the pull ring (16), and the hole can be punched only through the first pressure ring (28).

Images