A press forming device and a forming process for honeycomb panels

Abstract

The application is suitable for the technical field of metal plate processing, and provides a stamping forming device and a forming process for honeycomb plate, which comprises a bottom plate, a stacking plate device, a stamping device, a plate conveying assembly, a moving plate, a plate pushing assembly, a transmission assembly, a driving assembly, an inflation assembly and a support guide frame. The stamping device comprises an upper die and a lower die. The upper die drives the driving assembly through the transmission assembly, and converts the lifting movement into the reciprocating linear movement of the moving plate. When the moving plate returns, the inflation assembly intermittently inflates the inner cavity of the workbench. The gas is sprayed out through the gas conveying hole, and the gas film is formed between the plate and the lower die, so that the vacuum adsorption is eliminated. The support guide frame controls the lifting and falling of the plate pushing assembly through the guide slide, so that the automatic pushing and feeding after stamping is realized. The application realizes the automatic circulation of stamping, blowing, unloading and feeding through mechanical linkage, effectively prevents the thin plate from being stuck after punching, improves the feeding accuracy and continuity, and significantly improves the punching efficiency and product quality of the honeycomb plate panel.

Description

Technical Field

[0001] This invention belongs to the field of metal sheet processing technology, and particularly relates to a stamping forming device and a forming process for honeycomb panels. Background Technology

[0002] Due to their lightweight and high strength, honeycomb panels are widely used in aerospace, rail transportation, and architectural decoration. The surface layer of a honeycomb panel is typically formed by punching a thin metal sheet through a multi-hole process and then bonding it with a honeycomb core material. Existing honeycomb panel stamping equipment, such as the "Stamping Forming Device and Forming Process for Honeycomb Panels" disclosed in Chinese Patent CN119259791B, mostly uses a hydraulic press to drive the upper die downwards for punching, and is equipped with an independent ejector cylinder or pusher mechanism for unloading.

[0003] However, this type of existing technology still has the following shortcomings in practical applications:

[0004] Thin sheet adsorption and jamming problem: When the thin metal sheet is squeezed and deformed during punching, it is easy to form a closed cavity with the lower die worktable, which produces a strong vacuum adsorption effect. In addition, the burrs on the edge after punching hook the sheet, causing the sheet to stick tightly to the lower die. It is difficult to remove it smoothly by gravity or simple push rods alone, and manual prying is often required, which can easily cause scratches on the sheet surface.

[0005] Dispersed power sources and poor synchronization: The feeding and unloading actions of existing equipment often rely on independent cylinders or motors for driving. The timing coordination between the actions is difficult, which can easily lead to problems such as premature material pushing interfering with stamping positioning or untimely unloading hindering subsequent feeding, resulting in limited equipment cycle time.

[0006] Therefore, there is an urgent need for a molding device and process that can achieve mechanical linkage of the entire process of stamping, blowing, unloading and feeding through a single power source, and can effectively eliminate vacuum adsorption. Summary of the Invention

[0007] This invention provides a stamping forming device and a forming process for honeycomb panels, aiming to solve the problems of low production efficiency, poor yield, and high cost of automation transformation caused by the difficulty of unloading due to the thin plate adsorption jamming and the large coordination error of multiple power sources during the current honeycomb panel punching process.

[0008] The present invention is implemented as follows: a stamping forming apparatus includes a base plate, a stacker disposed on the base plate for stacking thin sheets to be stamped, and further includes:

[0009] A stamping device, mounted on a base plate, is used to perform multi-hole punching on the sheet metal to be stamped. The stamping device includes an upper die and a base frame, and a lower die that cooperates with the upper die is mounted on the base frame.

[0010] The plate conveying assembly, connected between the lower die and the plate stacker, is used to convey the thin plates to be stamped one by one to the lower die;

[0011] A movable plate is disposed on one side of the stamping equipment, reciprocating horizontally.

[0012] A push plate assembly is installed at the bottom of the moving plate and is used to push the stamped sheet material out of the lower die when the moving plate returns.

[0013] A transmission component, connected to the upper mold, is used to output rotational motion during the lifting and lowering of the upper mold;

[0014] A drive assembly, connected between the transmission assembly and the moving plate, is used to convert the rotational motion into the reciprocating linear motion of the moving plate;

[0015] An inflation assembly, connected between the movable plate and the lower mold, is used to intermittently inflate the lower mold during the return stroke of the movable plate.

[0016] A support guide frame is disposed on the upper side of the base plate and is used to guide and constrain the movement of the moving plate and the push plate assembly.

[0017] Preferably, the drive assembly includes a turntable, the outer wall of which is hinged with a connecting rod, the other end of which is hinged to the moving plate.

[0018] Preferably, the lower mold comprises:

[0019] Two support plates are fixedly connected to the top of the base frame at intervals, forming a material drop channel between the two support plates, and a through slot is provided on the base frame located between the two support plates.

[0020] The workbench is fixed to the top of the support plate and has an internal cavity. Several punched holes are drilled through the workbench.

[0021] Multiple air inlets are provided on the upper surface of the worktable and are connected to the inner cavity.

[0022] Preferably, the inflation assembly includes:

[0023] The push-pull rod is fixedly connected to the movable plate;

[0024] The piston cylinder is fixed to the base frame by a bracket, and a piston is slidably disposed inside it;

[0025] The piston rod has one end fixed to the push-pull rod and the other end extending into the piston cylinder and fixed to the piston.

[0026] A one-way valve is located at the end of the piston cylinder, allowing gas to flow unidirectionally from the outside to the inside of the piston cylinder;

[0027] A connecting pipe connects the piston cylinder to the inner cavity.

[0028] Preferably, the conveying assembly includes a track fixed to the side wall of the stacker, with a rounded corner opening at one end of the track near the stacker and a discharge port at the other end of the track that cooperates with the lower mold.

[0029] Preferably, the transmission assembly includes a lifting plate connected to the upper mold, a rack fixedly connected to one end of the lifting plate, a transmission gear meshing with one side of the rack, a shaft fixedly connected to the outer wall of the transmission gear, and a support plate and a transmission frame fixedly connected to the top of the base frame to support the rotation of the shaft.

[0030] The transmission assembly also includes a transmission component mounted on the transmission frame, and the rotating shafts can drive the turntable to rotate in one direction by driving the transmission component;

[0031] The transmission component includes a first bevel gear and a second bevel gear rotatably connected to the transmission frame. A rotating shaft is rotatably connected between the first bevel gear and the second bevel gear. The rotating shaft is fixedly connected to the center of the turntable. A third bevel gear is meshed between the first bevel gear and the second bevel gear. The third bevel gear is fixedly connected to the shaft.

[0032] Two ratchet wheels are fixedly sleeved on the outer wall of the rotating shaft located between the first bevel gear and the second bevel gear. A U-shaped frame is fixedly connected to the inner wall of both the first bevel gear and the second bevel gear. A ratchet block that cooperates with the ratchet wheels is slidably sleeved on the inner side of the U-shaped frame. A return spring is connected between the ratchet block and the U-shaped frame.

[0033] Preferably, the support guide frame is fixed to an L-shaped frame on the side wall of the base frame, a parallel frame is fixed to the outer wall of the L-shaped frame, the movable plate is slidably sleeved on the parallel frame, an outer frame is provided on the inner side of the L-shaped frame, an inner plate is provided on the inner side of the outer frame, a guide slide is formed between the outer frame and the inner plate, a fixing frame for supporting the inner plate and the outer frame is fixed to the bottom of the L-shaped frame, and a baffle is rotatably connected to one side of the inner plate via a rotating shaft;

[0034] The push plate assembly includes a push base, with two insert shafts fixedly connected to the top of the push base. The insert shafts have a T-shaped cross-section and are slidably suspended inside the movable plate. A connecting spring is provided on the outside of the insert shafts, with both ends of the connecting springs connected to the movable plate and the push base, respectively. A toggle shaft is fixedly connected to the outer wall of the push base, with one end of the toggle shaft slidably sleeved inside the guide slide.

[0035] Preferably, the stamping equipment further includes a top plate disposed on the upper side of the base frame, a plurality of support columns are fixedly connected between the top plate and the base frame, an electric hydraulic device for driving the upper die to rise and fall is fixedly installed on the top of the top plate, and two guide shafts are fixedly connected to the top of the base frame.

[0036] The upper die includes a stamping seat slidably sleeved on the outer wall of two guide shafts. A limit plate is provided on the lower side of the stamping seat. A polyurethane pad is provided at the bottom of the limit plate. Lifting columns are fixedly connected to the four corners of the top of the limit plate. The lifting columns slide through the stamping seat. A buffer spring is provided on the outside of the stamping seat. The two ends of the buffer spring are respectively connected to the stamping seat and the limit plate. A plurality of stamping rods corresponding to and adapted to the punch holes are fixedly connected to the bottom of the stamping seat. Holes for the stamping rods to pass through are opened on the limit plate and the polyurethane pad.

[0037] Preferably, the plate stacker includes a placement frame, with an outer cylinder fixedly connected to each of the four bottom corners of the placement frame. An inner rod is slidably sleeved inside each outer cylinder. A support spring is connected between the inner rod and the bottom of the outer cylinder. A stacking rack for stacking the thin plates to be stamped is fixedly connected between the tops of the four inner rods.

[0038] The placement frame is detachably fixed to a pressure plate at one of its opposite top ends by bolts. Multiple pressure rollers are rotatably connected to the bottom of the pressure plate, and the track is fixed to the side wall of the placement frame.

[0039] A molding process for a honeycomb panel includes the following steps:

[0040] S1. Material preparation: Place the stacked sheet metal to be stamped into the stacker, with the bottom sheet metal tightly attached to the track entrance of the conveyor assembly under the action of the support spring.

[0041] S2, Stamping operation: The electric hydraulic unit drives the upper die to move downward. The polyurethane pad first contacts the sheet metal for pre-pressing. Then the stamping rod penetrates the sheet metal and enters the punching hole to complete the multi-hole punching. The scrap falls through the through slot.

[0042] S3. Unloading and air blowing: The upper mold moves upward and drives the moving plate back through the transmission component. The air inflation component inflates the inner cavity of the worktable, so that the plate and the lower mold are slightly suspended. At the same time, the push plate component pushes the finished plate out of the station and pushes the new plate to be processed into the lower mold.

[0043] Compared with related technologies, the stamping forming apparatus and forming process for honeycomb panels provided by the present invention have the following beneficial effects:

[0044] 1. By replacing multiple power sources with mechanical linkage, a highly stable stamping-unloading synchronous control system is constructed.

[0045] This invention utilizes the lifting motion of the upper die as the sole power input, driving the transmission assembly to output unidirectional rotational motion to the turntable. A ratchet and tooth transmission mechanism transforms the reciprocating motion into the unidirectional linear reciprocating motion of the moving plate, fundamentally eliminating the timing accumulation errors inherent in traditional multi-cylinder / motor drive modes. Under this transmission architecture, the downward punching and the avoidance retraction of the moving plate are strictly synchronized, and the return stroke of the upper die and the feeding and advancing of the moving plate are precisely connected. This ensures that during continuous operation, the pusher assembly will not interfere with the stamping positioning, and there will be no feeding lag or collision phenomena, significantly improving the rigidity and consistency of the entire machine. For existing factories, this structure greatly simplifies the electrical control logic and debugging difficulty, reduces reliance on the skill level of operators, and significantly improves the equipment's uptime under different working conditions, effectively solving the pain points of difficult automation transformation and high maintenance costs for small and medium-sized enterprises.

[0046] 2. It integrates intermittent gas film desorption and guided constraint feeding to achieve fully automatic and almost lossless transfer of thin plates.

[0047] This invention couples the linear motion of the moving plate with the inflation component. Before the pushing action occurs, gas is injected into the inner cavity of the worktable using mechanical pulling force and ejected through the air outlet to form an air film, instantly breaking the vacuum adhesion between the sheet metal and the lower die after stamping. At the same time, the support guide frame controls the posture of the pushing plate component through the guide slide, so that it automatically falls and adheres to the top thin plate during the return stroke of the moving plate. This causes the top thin plate to be pushed onto the track, which in turn pushes forward several sheets of sheet metal that were originally on the track to be stamped. That is, the sheets of sheet metal to be stamped on the conveying component move forward one station at a time, and pushes out the sheets of sheet metal that were originally stamped on the lower die after being stamped. The new sheet metal is then accurately fed into the worktable of the lower die through the track and the discharge port, waiting for the next stamping. This technical solution can push the finished board out of the workstation with extremely low frictional resistance and accurately push the new board into the stacker, realizing full automation from automatic feeding, stamping to finished product unloading, which significantly improves the production efficiency and yield of honeycomb panel and reduces downtime for material change caused by manual intervention. Attached Figure Description

[0048] Figure 1 This is a three-dimensional structural diagram of the stamping forming apparatus of the present invention;

[0049] Figure 2 This is a schematic diagram of the structure of the plate stacker and plate conveying assembly of the present invention;

[0050] Figure 3 This is a schematic diagram of the structural composition of the stamping equipment of the present invention;

[0051] Figure 4 This is a schematic diagram of the lower mold structure of the present invention;

[0052] Figure 5 This is a schematic diagram of the upper mold structure of the present invention;

[0053] Figure 6 This is a schematic diagram of the support guide frame assembly structure of the present invention;

[0054] Figure 7 For the present invention Figure 6 Enlarged structural diagram at point A in the middle;

[0055] Figure 8 This is a schematic diagram of the assembly structure of the inflation component and transmission component of the present invention;

[0056] Figure 9 This is a three-dimensional structural diagram of the transmission component of the present invention;

[0057] Figure 10 This is a partial cross-sectional view of the transmission component of the present invention.

[0058] In the picture:

[0059] 1. Stacker; 11. Placement frame; 12. Pressure plate; 13. Pressure roller; 14. Stacking rack; 15. Outer cylinder; 16. Inner rod; 17. Support spring;

[0060] 2. Push plate assembly; 21. Push base; 22. Insert shaft; 23. Connecting spring; 24. Actuating shaft;

[0061] 3. Conveying plate assembly; 31. Track; 32. Feed port; 33. Rounded corners;

[0062] 4. Stamping equipment; 41. Electro-hydraulic unit; 42. Top plate; 43. Support column; 44. Base frame; 45. Guide shaft; 46. Upper die; 461. Stamping seat; 462. Limiting plate; 463. Polyurethane pad; 464. Stamping rod; 465. Buffer spring; 466. Lifting column; 47. Lower die; 471. Support plate; 472. Worktable; 473. Punch hole; 474. Air inlet; 475. Inner cavity; 48. Through slot;

[0063] 5. Inflation assembly; 51. Push-pull rod; 52. Piston rod; 53. Piston cylinder; 54. Bracket; 55. One-way valve; 56. Connecting pipe;

[0064] 6. Transmission assembly; 61. Lifting plate; 62. Rack; 63. Transmission gear; 64. Support plate; 65. Transmission frame; 66. Transmission component; 661. First bevel gear; 662. Second bevel gear; 663. Third bevel gear; 664. Rotating shaft; 665. Ratchet; 666. U-shaped frame; 667. Ratchet block; 668. Return spring; 67. Shaft;

[0065] 7. Drive assembly; 71. Turntable; 72. Connecting rod;

[0066] 8. Movable board;

[0067] 9. Support guide frame; 91. L-shaped frame; 92. Parallel frame; 93. Fixed frame; 94. Outer frame; 95. Inner panel; 96. Guide slide; 97. Baffle plate;

[0068] 10. Thin sheet to be stamped. Detailed Implementation

[0069] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0070] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0071] Example

[0072] A preferred embodiment of the stamping forming apparatus and the forming process for honeycomb panels provided by the present invention is as follows: Figures 1 to 10The following describes a stamping forming apparatus and a forming process for honeycomb panels: A base plate, a stacker 1 mounted on the base plate for stacking thin sheets 10 to be stamped, and a stamping device 4 mounted on the base plate for punching multiple holes in the thin sheets 10. The stamping device 4 includes an upper die 46 and a base frame 44, with a lower die 47 on the base frame 44 that cooperates with the upper die 46. A conveying assembly 3 connects the lower die 47 and the stacker 1, conveying the thin sheets 10 to be stamped one by one to the lower die 47. A moving plate 8 moves horizontally... A reciprocating motion assembly is located on one side of the stamping equipment 4; a pusher assembly 2, installed at the bottom of the moving plate 8, is used to push the stamped sheet metal out of the lower die 47 when the moving plate 8 returns; a transmission assembly 6, connected to the upper die 46, is used to output rotational motion during the lifting and lowering of the upper die 46; a drive assembly 7, connected between the transmission assembly 6 and the moving plate 8, is used to convert the rotational motion into the reciprocating linear motion of the moving plate 8; an inflation assembly 5, connected between the moving plate 8 and the lower die 47, is used to intermittently inflate the lower die 47 when the moving plate 8 returns. A support guide frame 9, located on the upper side of the base plate, is used to guide and constrain the movement of the moving plate 8 and the pusher assembly 2.

[0073] In this embodiment, the electro-hydraulic actuator 41 drives the upper die 46 downward. Through the linkage between the transmission component 6 and the drive component 7, the moving plate 8 moves away from the stamping equipment 4. The push plate component 2 is raised to avoid the impact under the constraint of the support guide frame 9. After stamping, the upper die 46 moves upward, the moving plate 8 returns, the inflation component 5 inflates the inner cavity 475 of the worktable 472, and the push plate component 2 falls and pushes, so that the finished product and the thin plate to be processed are alternated. The mechanical linkage of stamping, feeding, blowing, and unloading is realized by a single power source, eliminating the timing error between multiple power sources, ensuring the stable operation of the whole machine, and greatly improving the automation level of honeycomb panel processing.

[0074] In a further preferred embodiment of the present invention, the drive assembly 7 includes a turntable 71, a connecting rod 72 is hinged to the outer wall of the turntable 71, and the other end of the connecting rod 72 is hinged to the movable plate 8.

[0075] In this embodiment, the turntable 71 receives unidirectional rotational power from the transmission assembly 6, and converts the circular motion into linear reciprocating motion of the moving plate 8 via the connecting rod 72, thereby precisely controlling the forward and backward stroke of the pusher assembly 2. The crank-slider type linkage transmission is simple and reliable, efficiently converting rotational motion into long-distance linear pushing, ensuring the accuracy of the feeding position.

[0076] In a further preferred embodiment of the present invention, the lower mold 47 includes two support plates 471, which are fixedly connected to the top of the base frame 44 at intervals, and a material discharge channel is formed between the two support plates 471. A through groove 48 is provided through the base frame 44 located between the two support plates 471. A worktable 472 is fixedly connected to the top of the support plates 471, and an inner cavity 475 is provided inside it. A plurality of punch holes 473 are provided through the worktable 472. A plurality of air supply holes 474 are provided on the upper surface of the worktable 472 and are connected to the inner cavity 475.

[0077] In this embodiment, the waste material punched by the stamping rod 464 falls into the blanking channel through the punch hole 473 and is discharged through the through groove 48; the gas input by the inflation component 5 is buffered by the inner cavity 475 and then evenly sprayed out through the air outlet 474, acting on the bottom of the plate. The inner cavity 475 plays a role in storing and stabilizing air pressure. Together with the evenly distributed air outlet 474 on the surface, a uniform air film can be formed between the plate and the worktable 472, effectively breaking the vacuum adsorption and preventing secondary scratches on the thin plate due to uneven force.

[0078] In a further preferred embodiment of the present invention, the inflation assembly 5 includes a push-pull rod 51 fixedly connected to the movable plate 8; a piston cylinder 53 fixed to the base frame 44 by a bracket 54, with a piston slidably disposed inside; a piston rod 52, one end fixedly connected to the push-pull rod 51, and the other end extending into the piston cylinder 53 and fixedly connected to the piston; a one-way valve 55 disposed at the end of the piston cylinder 53, allowing gas to flow unidirectionally from the outside to the inside of the piston cylinder 53; and a connecting pipe 56 connecting the piston cylinder 53 and the inner cavity 475.

[0079] In this embodiment, when the moving plate 8 returns, the push-pull rod 51 pulls the piston rod 52, and the piston compresses the air in the piston cylinder 53. The gas is then forcibly injected into the inner cavity 475 of the lower mold 47 through the connecting pipe 56. When the moving plate 8 moves forward, the piston pulls back, and the one-way valve 55 automatically replenishes the air. By converting the mechanical energy of the moving plate 8 into pneumatic energy, no external air source or solenoid valve is required, achieving strict synchronization between the blowing action and the unloading action, resulting in energy saving and fast response.

[0080] In a further preferred embodiment of the present invention, the conveying plate assembly 3 includes a track 31 fixed to the side wall of the stacker 1. One end of the track 31 near the stacker 1 is provided with a rounded corner opening 33, and the other end of the track 31 is provided with a discharge port 32 that cooperates with the lower mold 47.

[0081] In this embodiment, the sheet metal 10 to be stamped is lifted by the support spring 17 in the stacker 1, and the top sheet metal is smoothly transitioned to the track 31 through the rounded corner opening 33. It is then pushed into the lower die 47 one by one by the pusher assembly 2 through the discharge port 32. The design of the rounded corner opening 33 reduces the resistance of the sheet metal entering the track 31, avoids deformation or jamming of the sheet metal caused by right-angle collision, and ensures smooth feeding.

[0082] In a further preferred embodiment of the present invention, the transmission assembly 6 includes a lifting plate 61 connected to the upper mold 46, a rack 62 fixedly connected to one end of the lifting plate 61, a transmission gear 63 meshing with one side of the rack 62, a shaft 67 fixedly connected to the outer wall of the transmission gear 63, and a support plate 64 and a transmission frame 65 fixedly connected to the top of the base frame 44 for rotating support of the shaft 67; the transmission assembly 6 also includes a transmission component 66 disposed on the transmission frame 65, the shaft 67 rotating in both directions can drive the turntable 71 to rotate unidirectionally by driving the transmission component 66; the transmission component 66 includes a first bevel gear 661 and a second bevel gear 662 rotatably connected to the transmission frame 65, the first bevel gear 661 and the ... A rotating shaft 664 is rotatably connected between the two bevel gears 662. The rotating shaft 664 is fixedly connected to the center of the turntable 71. A third bevel gear 663 meshes between the first bevel gear 661 and the second bevel gear 662. The third bevel gear 663 is fixedly connected to the shaft 67. Two ratchet wheels 665 are fixedly sleeved on the outer wall of the rotating shaft 664 located between the first bevel gear 661 and the second bevel gear 662. A U-shaped frame 666 is fixedly connected to the inner wall of both the first bevel gear 661 and the second bevel gear 662. A ratchet block 667 that cooperates with the ratchet wheel 665 is slidably sleeved on the inner side of the U-shaped frame 666. A return spring 668 is connected between the ratchet block 667 and the U-shaped frame 666.

[0083] In this embodiment, the upper die 46 moves downward, causing the rack 62 to move downward and the drive shaft 67 to rotate clockwise. At this time, the right ratchet block 667 engages with the ratchet wheel 665, causing the rotating shaft 664 to rotate. When the upper die 46 moves upward, it causes the rack 62 to move upward and the drive shaft 67 to rotate counterclockwise. At this time, the left ratchet block 667 engages, the right ratchet block 667 skips teeth, and the rotating shaft 664 continues to rotate in the original direction, thus achieving unidirectional continuous output. Through the unidirectional transmission mechanism of the ratchet wheel and ratchet, the reciprocating lifting and lowering of the upper die 46 is forcibly converted into the unidirectional rotation of the turntable 71, completely eliminating the reversing impact and ensuring the smooth movement and positioning accuracy of the moving plate 8 under high-speed stamping.

[0084] In a further preferred embodiment of the present invention, the support guide frame 9 is fixedly connected to the L-shaped frame 91 on the side wall of the base frame 44. A parallel frame 92 is fixedly connected to the outer wall of the L-shaped frame 91. The movable plate 8 is slidably sleeved on the parallel frame 92. An outer frame 94 is provided on the inner side of the L-shaped frame 91. An inner plate 95 is provided on the inner side of the outer frame 94. A guide slide 96 is formed between the outer frame 94 and the inner plate 95. A fixing frame 93 for supporting the inner plate 95 and the outer frame 94 is fixedly connected to the bottom of the L-shaped frame 91. A baffle 97 is rotatably connected to one side of the 95 via a rotating shaft; the push plate assembly 2 includes a push base 21, with two insert shafts 22 fixedly connected to the top of the push base 21. The insert shafts 22 have a T-shaped cross-section and are slidably suspended inside the movable plate 8. A connecting spring 23 is provided on the outside of the insert shafts 22. The two ends of the connecting spring 23 are respectively connected to the movable plate 8 and the push base 21. A toggle shaft 24 is fixedly connected to the outer wall of the push base 21, and one end of the toggle shaft 24 is slidably sleeved inside the guide slide 96.

[0085] In this embodiment, when the moving plate 8 moves forward, the actuating shaft 24 slides along the uphill section of the guide slide 96, and the pusher 21 is lifted by the connecting spring 23; when the moving plate 8 returns, the actuating shaft 24 slides into the downhill section, and the pusher 21 falls to contact the plate and pushes it. By using the mechanical slide to control the pusher's posture, intelligent switching between "avoiding during stamping and pushing during unloading" is achieved, preventing the pusher from interfering with the stamping positioning.

[0086] In a further preferred embodiment of the present invention, the stamping equipment 4 further includes a top plate 42 disposed on the upper side of the base frame 44, a plurality of support columns 43 fixedly connected between the top plate 42 and the base frame 44, an electric hydraulic device 41 for driving the upper die 46 to rise and fall fixedly installed on the top of the top plate 42, and two guide shafts 45 fixedly connected to the top of the base frame 44; the upper die 46 includes a stamping seat 461 slidably sleeved on the outer wall of the two guide shafts 45, a limit plate 462 disposed on the lower side of the stamping seat 461, and a retaining plate 462 disposed at the bottom of the limit plate 462. The polyurethane pad 463 and the limiting plate 462 are all fixedly connected to the four corners of the top. The lifting columns 466 slide through the stamping seat 461. The outer side of the stamping seat 461 is provided with a buffer spring 465. The two ends of the buffer spring 465 are respectively connected to the stamping seat 461 and the limiting plate 462. The bottom of the stamping seat 461 is fixedly connected with a plurality of stamping rods 464 that correspond one-to-one with the punch holes 473. The limiting plate 462 and the polyurethane pad 463 are both provided with holes for the stamping rods 464 to pass through.

[0087] In this embodiment, when the upper die 46 moves downward, the polyurethane pad 463 first contacts the sheet metal and compresses the buffer spring 465 to achieve pre-compression; then the stamping rod 464 extends, penetrates the sheet metal, and enters the punch hole 473 to complete the punching. The polyurethane pad 463 provides flexible pre-compression to prevent the thin sheet metal from warping or wrinkling during punching; the buffer spring 465 absorbs the impact force of the stamping, protecting the die and the sheet metal and extending the service life of the equipment.

[0088] In a further preferred embodiment of the present invention, the stacker 1 includes a placement frame 11, with an outer cylinder 15 fixedly connected to each of the four corners of the bottom of the placement frame 11. An inner rod 16 is slidably sleeved inside each outer cylinder 15. A support spring 17 is connected between the inner rod 16 and the bottom of the outer cylinder 15. A stacking rack 14 for stacking the thin plates 10 to be pressed is fixedly connected between the top ends of the four inner rods 16. A pressure plate 12 is detachably fixed to the top of the opposite pair of the placement frame 11 by bolts. Multiple pressure rollers 13 are rotatably connected to the bottom of the pressure plate 12. A track 31 is fixedly connected to the side wall of the placement frame 11.

[0089] Working principle:

[0090] The present invention provides a stamping forming device that achieves an automated cycle of stamping, feeding, air separation, and unloading through mechanical linkage. The specific working process is as follows:

[0091] The equipment is powered by an electro-hydraulic actuator 41. Upon startup, the electro-hydraulic actuator 41 drives the upper mold 46 to reciprocate linearly up and down along the guide shaft 45. When the upper mold 46 descends, it first moves the lifting plate 61 and rack 62 downwards. The rack 62 drives the transmission gear 63 and shaft 67 to rotate. The shaft 67 drives the third bevel gear 663 to rotate. Because the transmission component 66 uses a ratchet structure, only one ratchet block 667 in the U-shaped frame 666 meshes with the ratchet 665, while the ratchet block 667 in the other U-shaped frame 666 skips teeth with the other ratchet 665, causing the rotating shaft 664 to rotate unidirectionally, which in turn causes the turntable 71 to rotate unidirectionally.

[0092] Turntable 71 pushes the moving plate 8 away from the stamping equipment 4 via connecting rod 72. During this process, the actuating shaft 24 of the push plate assembly 2 slides within the guide slide 96 of the supporting guide frame 9. Restricted by the baffle 97 and the slide trajectory, the actuating shaft 24 first rises and then moves horizontally, causing the push seat 21 to rise upward under the action of the connecting spring 23, thus avoiding interference with the sheet 10 to be stamped.

[0093] At the same time, the moving plate 8 drives the push-pull rod 51 away from the stamping equipment 4, and the piston rod 52 pulls the piston to generate negative pressure in the piston cylinder 53. The one-way valve 55 opens, and outside air is drawn into the piston cylinder 53 for storage.

[0094] During the stamping process of the upper die 46, the polyurethane pad 463 on the upper die 46 is pre-pressed into contact with the sheet metal 10 to be stamped placed on the worktable 472, thus limiting the pressing of the sheet metal 10 to be stamped on the worktable 472. As the stamping seat 461 continues to move downward, the lifting column 466 slides inside the stamping seat 461, the buffer spring 465 is gradually compressed, the limiting plate 462 and the stamping seat 461 gradually approach each other, and the stamping rod 464 passes through the limiting plate 462 and the polyurethane pad 463 to punch a hole 473 in the sheet metal 10 to be stamped. The stamping rod 464 passes through the punch hole 473, and the fragments stamped by the stamping rod 464 are discharged through the punch hole 473.

[0095] When the electro-hydraulic actuator 41 drives the upper mold 46 to move upward and reset:

[0096] The movable plate 8 is pulled back by the connecting rod 72, approaching the stamping equipment 4. The push-pull rod 51 pushes the piston to compress the air in the piston cylinder 53. At this time, the one-way valve 55 closes, and the gas is injected into the inner cavity 475 of the lower die 47 through the connecting pipe 56 and ejected from the air outlet 474 on the surface of the worktable 472. The airflow forms an air film between the plate and the worktable 472, eliminating the vacuum suction force and preventing the plate from jamming due to stamping deformation.

[0097] At the same time, the actuating shaft 24 slides into the horizontal section of the guide slide 96, and the pusher 21 falls under the action of the connecting spring 23. The height of the pusher 21 is lower than the top of the thin plate 10 to be pressed on the uppermost side of the stacker 1.

[0098] The pusher 21 on the pusher assembly 2 pushes the uppermost sheet 10 to be stamped in the stacker 1, causing the sheet 10 to be stamped to be pushed onto the track 31. The sheet 10 to be stamped pushes forward several sheets 10 to be stamped that were originally on the track 31. That is, the sheets 10 to be stamped on the conveyor assembly 3 move forward one station at a time, and pushes out the sheet 10 to be stamped that was originally stamped on the lower die 47. The new sheet is then accurately fed into the worktable 472 of the lower die 47 via the track 31 and the discharge port 32, waiting for the next stamping.

[0099] It is worth noting that the circuits, electronic components, and modules involved in this invention are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this invention does not involve improvements to the software and methods.

[0100] It should be understood that the disclosed apparatus can be implemented in other ways, as illustrated in the embodiments provided in this application. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units described above is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or communication connections shown or discussed may be through some interfaces; the indirect coupling or communication connections between devices or units may be telecommunications or other forms.

[0101] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit the scope of protection of the invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of the present invention according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of the present invention. These technical solutions also fall within the scope of protection of the present invention.

Claims

1. A stamping forming apparatus, comprising a base plate and a stacker (1) disposed on the base plate for stacking sheet metal (10) to be stamped, characterized in that, Also includes: The stamping equipment (4) is set on the base plate and is used to punch the thin plate (10) to be stamped with multiple holes. The stamping equipment (4) includes an upper die (46) and a base frame (44). The base frame (44) is provided with a lower die (47) that cooperates with the upper die (46). The plate conveying assembly (3) is connected between the lower die (47) and the plate stacker (1) and is used to convey the thin plates (10) to be stamped one by one to the lower die (47). The movable plate (8) is arranged on one side of the stamping equipment (4) in a horizontal reciprocating motion. The push plate assembly (2) is installed at the bottom of the moving plate (8) and is used to push the stamped plate out of the lower die (47) when the moving plate (8) returns. The transmission component (6) is connected to the upper mold (46) and is used to output rotational motion during the lifting and lowering of the upper mold (46); The drive assembly (7) is connected between the transmission assembly (6) and the moving plate (8) and is used to convert the rotational motion into the reciprocating linear motion of the moving plate (8); An inflation assembly (5) is connected between the moving plate (8) and the lower mold (47) for intermittently inflating the lower mold (47) during the return stroke of the moving plate (8). A support guide frame (9) is provided on the upper side of the base plate to guide and constrain the movement of the moving plate (8) and the push plate assembly (2).

2. The stamping forming apparatus as described in claim 1, characterized in that, The drive assembly (7) includes a turntable (71), the outer wall of which is hinged with a connecting rod (72), the other end of which is hinged to the moving plate (8).

3. The stamping forming apparatus as described in claim 2, characterized in that, The lower mold (47) includes: Two support plates (471) are fixedly connected to the top of the base frame (44) at intervals, and a material drop channel is formed between the two support plates (471). A through slot (48) is provided on the base frame (44) located between the two support plates (471). The workbench (472) is fixed to the top of the support plate (471), and has an inner cavity (475) inside. Several punch holes (473) are opened through the workbench (472). Multiple air inlets (474) are provided on the upper surface of the worktable (472) and are connected to the inner cavity (475).

4. The stamping forming apparatus as described in claim 3, characterized in that, The inflation assembly (5) includes: Push-pull rod (51) is fixed to the movable plate (8); The piston cylinder (53) is fixed to the base frame (44) by a bracket (54), and a piston is slidably disposed inside it; The piston rod (52) has one end fixed to the push-pull rod (51) and the other end extends into the piston cylinder (53) and is fixed to the piston. A one-way valve (55) is provided at the end of the piston cylinder (53) to allow gas to flow unidirectionally from the outside to the inside of the piston cylinder (53); A connecting pipe (56) connects the piston cylinder (53) to the inner cavity (475).

5. The stamping forming apparatus as described in claim 4, characterized in that, The conveying assembly (3) includes a track (31) fixed to the side wall of the stacker (1). The track (31) has a rounded corner opening (33) at one end near the stacker (1), and a discharge port (32) that cooperates with the lower mold (47) at the other end.

6. The stamping forming apparatus as described in claim 5, characterized in that, The transmission assembly (6) includes a lifting plate (61) connected to the upper mold (46), a rack (62) fixedly connected to one end of the lifting plate (61), a transmission gear (63) meshing with one side of the rack (62), a shaft (67) fixedly connected to the outer wall of the transmission gear (63), and a support plate (64) and a transmission frame (65) fixedly connected to the top of the base frame (44) to provide rotational support for the shaft (67). The transmission assembly (6) also includes a transmission component (66) disposed on the transmission frame (65). The rotating shaft (67) can drive the turntable (71) to rotate in one direction by driving the transmission component (66). The transmission component (66) includes a first bevel gear (661) and a second bevel gear (662) rotatably connected to the transmission frame (65). A rotating shaft (664) is rotatably connected between the first bevel gear (661) and the second bevel gear (662). The rotating shaft (664) is fixedly connected to the center of the turntable (71). A third bevel gear (663) meshes between the first bevel gear (661) and the second bevel gear (662). The third bevel gear (663) is fixedly connected to the shaft (67). Two ratchet wheels (665) are fixedly sleeved on the outer wall of the rotating shaft (664) located between the first bevel gear (661) and the second bevel gear (662). A U-shaped frame (666) is fixedly connected to the inner wall of both the first bevel gear (661) and the second bevel gear (662). A ratchet block (667) that cooperates with the ratchet wheel (665) is slidably sleeved on the inner side of the U-shaped frame (666). A return spring (668) is connected between the ratchet block (667) and the U-shaped frame (666).

7. The stamping forming apparatus as described in claim 6, characterized in that, The support guide frame (9) is fixed to the L-shaped frame (91) on the side wall of the base frame (44). A parallel frame (92) is fixed to the outer wall of the L-shaped frame (91). The movable plate (8) is slidably sleeved on the parallel frame (92). An outer frame (94) is provided on the inner side of the L-shaped frame (91). An inner plate (95) is provided on the inner side of the outer frame (94). A guide slide (96) is formed between the outer frame (94) and the inner plate (95). A fixing frame (93) for supporting the inner plate (95) and the outer frame (94) is fixed to the bottom of the L-shaped frame (91). A baffle (97) is rotatably connected to one side of the inner plate (95) through a rotating shaft. The push plate assembly (2) includes a push base (21), and two insert shafts (22) are fixedly connected to the top of the push base (21). The insert shafts (22) have a T-shaped cross section and are slidably suspended inside the moving plate (8). A connecting spring (23) is provided on the outside of the insert shafts (22). The two ends of the connecting spring (23) are respectively connected to the moving plate (8) and the push base (21). A toggle shaft (24) is fixedly connected to the outer wall of the push base (21). One end of the toggle shaft (24) is slidably sleeved inside the guide slide (96).

8. The stamping forming apparatus as described in claim 7, characterized in that, The stamping equipment (4) also includes a top plate (42) disposed on the upper side of the base frame (44), and a number of support columns (43) are fixedly connected between the top plate (42) and the base frame (44). An electric hydraulic device (41) for driving the upper mold (46) to rise and fall is fixedly installed on the top of the top plate (42), and two guide shafts (45) are fixedly connected to the top of the base frame (44). The upper mold (46) includes a stamping seat (461) slidably sleeved on the outer wall of two guide shafts (45). A limiting plate (462) is provided on the lower side of the stamping seat (461). A polyurethane pad (463) is provided at the bottom of the limiting plate (462). Lifting columns (466) are fixedly connected to the four corners of the top of the limiting plate (462). The lifting columns (466) slide through the stamping seat (461). A buffer spring (465) is provided on the outside of the stamping seat (461). The two ends of the buffer spring (465) are respectively connected to the stamping seat (461) and the limiting plate (462). A plurality of stamping rods (464) corresponding to and adapted to the punch holes (473) are fixedly connected to the bottom of the stamping seat (461). The limiting plate (462) and the polyurethane pad (463) are both provided with holes for the stamping rods (464) to pass through.

9. The stamping forming apparatus as described in claim 8, characterized in that, The stacker (1) includes a placement frame (11), with an outer cylinder (15) fixedly connected to each of the four corners of the bottom of the placement frame (11). An inner rod (16) is slidably sleeved inside each outer cylinder (15). A support spring (17) is connected between the inner rod (16) and the bottom of the outer cylinder (15). A stacking rack (14) for stacking the sheet metal (10) to be stamped is fixedly connected between the tops of the four inner rods (16). The placement frame (11) has a pressure plate (12) detachably fixed to its top end by bolts. The bottom of the pressure plate (12) is rotatably connected to multiple pressure rollers (13). The track (31) is fixed to the side wall of the placement frame (11).

10. A forming process for a honeycomb panel, using any one of the stamping forming apparatuses as described in claims 1-9, characterized in that, Includes the following steps: S1. Material preparation: Place the stacked sheet metal to be stamped in the stacker (1), and the bottom sheet metal is pressed against the track (31) entrance of the conveyor assembly (3) under the action of the support spring (17). S2, Stamping operation: The electric hydraulic unit (41) drives the upper die (46) to move downward. The polyurethane pad (463) first contacts the plate to pre-press it. Then the stamping rod (464) penetrates the plate and enters the punch hole (473) to complete the multi-hole punching. The scrap falls through the through groove (48). S3, Unloading and blowing: The upper mold (46) moves upward and drives the moving plate (8) back through the transmission component (6). The inflation component (5) inflates the inner cavity (475) of the worktable (472) so that the plate and the lower mold (47) are slightly suspended. At the same time, the push plate component (2) pushes the finished plate out of the station and pushes the new plate to be processed into the lower mold (47).

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