Spare and accessory part stamping device with ejection structure for mechanical engineering

Abstract

The part stamping device comprises an operation table, conveying assemblies are symmetrically arranged in the middle of the upper end of the operation table, a smearing assembly is arranged in the middle of the upper end of the operation table, and a stamping assembly is fixedly connected to the front side of the upper end of the operation table. An air blowing assembly is arranged at the upper end of the operation table, and ejection assemblies are symmetrically arranged at the upper end of the operation table. An L-shaped roller is matched with a push plate, a third air bag and a second air bag, the periphery of a stamped part is always filled with nitrogen before and after stamping, meanwhile, the probability that materials adhere to a mold can be reduced through nitrogen flow, smooth demolding is ensured, and in the stamping and resetting process, an inclined block is matched with a transverse plate, a second push rod and other structures, and after resetting is finished, the materials are fixed. The stamping part can be automatically ejected and discharged only after the second push rod is pushed out, it is ensured that ejection force is triggered only after the stamping head is reset, and the situation that the stamping head hinders the second push rod when the second push rod ejects the stamping part is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of stamping devices, and particularly to a stamping device for parts with an ejection structure in mechanical engineering. Background Art

[0002] In the field of aerospace, one of the core tasks of mechanical engineering is to balance lightweight and structural reliability. Taking the L-shaped connecting piece made of aluminum alloy material as an example, its lightweight and high-strength characteristics can significantly reduce the weight of the aircraft. At the same time, it can be efficiently formed through the stamping process to ensure complex geometric precision and mass production requirements. This L-shaped design can not only disperse the stress concentration at the fuselage connection, but also retain the high strength and corrosion resistance of aluminum alloy, reducing the part weight. The stamping process can precisely control the geometric precision of the L-shaped structure to ensure stable transmission of complex loads in scenarios such as fuselage connection and satellite brackets, while adapting to extreme temperature and vibration environments.

[0003] Chinese Patent Publication No. CN108421907B discloses an aluminum alloy stamping die with an ejection function, including a workbench, a suspension installed on the workbench, a hydraulic cylinder arranged on the suspension, an upper die connected to the hydraulic cylinder, a lower die arranged on the workbench and adapted to the upper die. An inner cavity communicating with the stamping bottom surface of the lower die is opened in the lower die. A jacking device and a bearing mechanism for supporting the jacking device are arranged in the inner cavity. The jacking device includes a top plate sliding in the inner cavity, a guiding mechanism for guiding the top plate, and a driving mechanism capable of driving the top plate to move vertically in the inner cavity through the guiding mechanism. The top plate cooperates with the bearing mechanism. This invention solves the problems that in the existing aluminum alloy stamping process, due to the high pressure pressing the parts on the lower die, too many ejector pins need to be set, but too many ejector pins cause damage to the parts and too few ejection through holes cause a reduction in the ejection effect of the parts by arranging a top plate that can move up and down in the lower die.

[0004] However, during the operation of the above device, it is impossible to achieve the effect of always surrounding the stamping part with nitrogen during and before and after stamping to avoid oxidation, and it is also impossible to achieve the effect of coating the surface of the aluminum alloy material with lubricating oil before stamping. Summary of the Invention

[0005] The main purpose of the present invention is to provide a stamping device for parts with an ejection structure in mechanical engineering, which can effectively solve the problems that it is impossible to achieve the effect of always surrounding the stamping part with nitrogen during and before and after stamping to avoid oxidation, and it is also impossible to evenly coat the lubricating oil on the material surface.

[0006] To achieve the above purpose, the technical solution adopted by the present invention is as follows: A stamping device for spare parts with an ejection structure in mechanical engineering, including an operating table. In the middle of the upper end of the operating table, a conveying component is symmetrically arranged. Above and below the middle of the upper end of the operating table, a smearing component is symmetrically arranged. In the front of the upper end of the operating table, a stamping component is fixedly connected. In the front of the stamping component, a blowing component is arranged on the upper end of the operating table. Below the stamping component, an ejection component is symmetrically arranged on the upper end of the operating table.

[0007] Preferably, a conveyor belt is fixedly connected to the rear side of the upper end of the operating table. Fixing plates are symmetrically and fixedly connected to the upper end of the operating table. A square hole is opened in the front of the upper end of the operating table. A stamping base is fixedly connected to the front of the upper end of the operating table. A cutting seat is fixedly connected to the upper end of the operating table behind the stamping base.

[0008] Preferably, arc-shaped grooves are opened in the upper parts of the mutually adjacent sides of the two fixing plates. Guide rails one are fixedly connected to the lower parts of the mutually adjacent sides of the two fixing plates. Guide rails two are fixedly connected to the mutually opposite sides of the two fixing plates. Guide rails three are fixedly connected to the middle parts of the mutually opposite sides of the two fixing plates.

[0009] Preferably, the conveying component includes a motor fixedly connected to the left end of the left fixing plate. The outer surface of the output end of the motor is drivingly connected with a rotating shaft. A gear one is fixedly connected to the outer surface of the rotating shaft. The output end of the motor penetrates through the left end of the left fixing plate and extends to the right end of the fixing plate. A rotating plate is fixedly connected to the right end of the output end of the motor. A limiting groove is opened in the right end of the rotating plate. An L-shaped sliding rod is slidably connected to the inner surface of the limiting groove. The outer surface of the horizontal part of the L-shaped sliding rod is slidably connected to the inner surface of the arc-shaped groove. A telescopic rod is fixedly connected to the lower end of the L-shaped sliding rod. An L-shaped rod is fixedly connected to the lower end of the telescopic rod. A plurality of suction cups are fixedly connected to the outer surface of the horizontal part of the L-shaped rod. A slider is slidably connected to the outer surface of the guide rail one. A through hole is opened in the upper end of the slider. The outer surface of the upper part of the L-shaped rod is slidably connected to the inner surface of the through hole. A gear two is fixedly connected to the outer surface of the output end of the motor. A rack two is meshed with the outer surface of the gear two. A pulling plate is fixedly connected to the upper end of the rack two. A guide rod is fixedly connected to the upper part of the left end of the fixing plate. The right end of the rack two is slidably connected to the outer surface of the guide rod. An air bag one is fixedly connected to the middle of the rear end of the rack two. A hose one is fixedly connected to the outer surface of the air bag one. A rectangular plate is fixedly connected to the rear end of the air bag one. The rectangular plate is fixedly connected to the fixing plate.

[0010] Preferably, the outer surface of the gear one is symmetrically meshed with two racks one in the front and rear. Push rods one are fixedly connected to one ends of the two racks one. The right end of the front rack one is slidably connected to the outer surface of the guide rail two. The right end of the rear push rod one is slidably connected to the outer surface of the guide rail three.

[0011] Preferably, the smearing assembly includes a dial plate fixedly connected to the lower ends of two push rods located on the upper side respectively. The two dial plates are fixedly connected with a telescopic box in common. The mutually remote ends of the two dial plates are respectively slidably connected to the upper end of the operating table. A balloon is fixedly connected to the top wall of the inner surface of the telescopic box. A felt board is fixedly connected to the lower parts of the front side wall and the rear side wall of the inner surface of the telescopic box. A plurality of soft brushes are fixedly connected to the lower end of the felt board.

[0012] Preferably, the stamping assembly includes a hydraulic cylinder fixedly connected to the upper end of the operating table. The output end of the hydraulic cylinder is fixedly connected with a push rod four. A stamping head is fixedly connected to the lower end of the push rod four. An L-shaped roller is fixedly connected to the outer surface of the push rod four. A laser cutting head is fixedly connected to the lower end of the vertical part of the L-shaped roller.

[0013] Preferably, the air blowing assembly includes a push plate fixedly connected to the outer surface of the horizontal part of the L-shaped roller. An airbag two is fixedly connected to the right side of the lower end of the push plate. The lower end of the airbag two is fixedly connected to the upper end of the operating table. A hose two is fixedly connected to the front side of the outer surface of the airbag two. A one-way valve one is fixedly connected to the side of the hose two close to the airbag two. An airbag three is fixedly connected to the left side of the upper end of the push plate. A hose three is fixedly connected to the front side of the outer surface of the airbag three. A one-way valve two is fixedly connected to the side of the hose three close to the airbag three. The hose two and the hose three are fixedly connected with a nozzle in common. Push rods three are symmetrically fixedly connected to the lower end of the push plate. Soft ropes are symmetrically fixedly connected to the rear end of the push plate.

[0014] Preferably, the ejecting assembly includes fixed rollers fixedly connected to the left end and the right end of the cutting seat respectively. Oblique plates are rotatably connected to the outer surfaces of the two fixed rollers. Spring one is fixedly connected to the lower arc surfaces of the two oblique plates. Oblique blocks are rotatably connected to the front ends of the two oblique plates. An arc spring is fixedly connected to the upper ends of the same-side oblique blocks and the upper ends of the oblique plates in common. The front sides of the upper ends of the two oblique plates are respectively movably connected to the lower ends of the adapted soft ropes.

[0015] Preferably, a plurality of spring two are fixedly connected to the upper end of the operating table. A cross plate is fixedly connected to the upper ends of the plurality of spring two in common. A plurality of push rods two are fixedly connected to the upper end of the cross plate. The upper end of the cross plate can be closely attached to the lower ends of the two oblique blocks.

[0016] Compared with the prior art, the present invention has the following beneficial effects: In the present invention, two conveying assemblies adopt vacuum adsorption to move the aluminum alloy material directionally. While conveying the material, it can also cooperate with the smearing assembly to smear the upper and lower surfaces of the aluminum alloy material, reducing the risks of stamping adhesion and deformation. At the same time, the air blowing assembly constructs a local nitrogen environment synchronously with the stamping stroke, inhibits oxidation and takes away heat, improving the surface quality. The ejecting assembly and the air blowing assembly cooperate to complete the ejecting action after the stamping assembly resets, further improving the stamping efficiency. The present invention realizes adsorbing aluminum alloy materials and simultaneously conveying them forward for stamping through the cooperation of structures such as an L-shaped sliding rod, an L-shaped rod, and an airbag I. Moreover, during the process of moving the aluminum alloy materials, it can also evenly apply lubricating oil on the surface of the aluminum alloy materials through the cooperation of structures such as a number of soft brushes, a felt board, and a telescopic box, avoiding the adhesion between the aluminum alloy materials and the die surface during the stamping process. At the same time, evenly applying the lubricant can reduce the material deformation resistance, enabling the aluminum alloy materials to flow evenly during stamping, reducing the risk of cracking or wrinkling, and can also slow down the rising speed of the temperature through heat dissipation, further improving the stamping quality. The present invention uses an L-shaped roller in cooperation with a push plate, an airbag III, and an airbag II, so that the stamping part is always filled with nitrogen during both the stamping preparation process and the reset process. Before stamping, nitrogen injection can purge dust and debris in the stamping area, avoiding impurities being pressed into the surface of the workpiece and reducing defects such as scratches and indentations. During the stamping process, the nitrogen gas flow can reduce the friction coefficient between the material and the die, improve the material fluidity, and reduce the probability of adhesion and sticking between the material and the die, ensuring smooth demolding. During the stamping and reset processes, through the cooperation of structures such as an inclined block, a cross plate, and a push rod II, the stamping part is automatically ejected and discharged only after the reset is completed, ensuring that the ejection force is triggered only after the stamping head is fully reset, avoiding the situation where the stamping head obstructs the push rod II during the process of ejecting the stamping part. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the partial structure of the present invention; Figure 3 is a schematic diagram of the structure of the conveying component of the present invention; Figure 4 is a schematic diagram of the operating structure of the conveying component of the present invention; Figure 5 is a schematic diagram of the structure of the coating component of the present invention; Figure 6 is a schematic cross-sectional view of the coating component of the present invention; Figure 7 is a schematic diagram of the structure of the stamping component of the present invention; Figure 8 is a schematic diagram of the structure of the air blowing component of the present invention; Figure 9 is a schematic diagram of the structure of the ejection component of the present invention; Figure 10 is a schematic diagram of the operating structure of the ejection component of the present invention.

[0018] In the figure: 1. Operating table; 11. Conveyor belt; 12. Fixed plate; 121. Arc-shaped groove; 122. Guide rail 1; 123. Guide rail 2; 124. Guide rail 3; 13. Square hole; 14. Stamping base; 15. Cutting seat; 2. Conveying assembly; 21. Motor; 211. Rotating shaft; 212. Gear 1; 22. Rotating plate; 221. Limit groove; 23. L-shaped sliding rod; 24. Telescopic rod; 25. Airbag 1; 251. Hose 1; 252. Rectangular plate; 26. Slide block; 27. L-shaped rod; 271. Suction cup; 28. Rack 1; 281. Push rod 1; 29. Gear 2; 291. Rack 2; 292. Pulling plate; 293. Guide rod; 3. Coating assembly; 31. Pushing plate; 32. Telescopic box; 33. Balloon; 34. Felt board; 35. Soft brush; 4. Ejecting assembly; 41. Fixed roller; 42. Inclined plate; 43. Spring 1; 44. Inclined block; 441. Arc-shaped spring; 45. Push rod 2; 46. Cross plate; 47. Spring 2; 5. Blowing assembly; 51. Pushing plate; 511. Push rod 3; 512. Soft rope; 52. Spray pipe; 53. Airbag 2; 531. Hose 2; 54. Airbag 3; 541. Hose 3; 6. Stamping assembly; 61. Hydraulic cylinder; 62. Push rod 4; 63. Stamping head; 64. L-shaped roller; 65. Laser cutting head. Detailed implementation mode

[0019] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with the specific implementation modes.

[0020] Example 1, as Figure 1 shown, a parts stamping device with an ejecting structure for mechanical engineering, including an operating table 1, a conveying assembly 2 is symmetrically arranged in the middle of the upper end of the operating table 1, a coating assembly 3 is symmetrically arranged up and down in the middle of the upper end of the operating table 1, a stamping assembly 6 is fixedly connected to the front side of the upper end of the operating table 1, a blowing assembly 5 is arranged on the upper end of the operating table 1 in front of the stamping assembly 6, and an ejecting assembly 4 is symmetrically arranged on the upper end of the operating table 1 below the stamping assembly 6.

[0021] In the field of aerospace, especially in scenarios such as fuselage connection and wing skin fixation, in order to meet complex load requirements, L-shaped connecting pieces formed by stamping aluminum alloy materials are usually used for connection. Due to the lightweight, high strength and corrosion resistance of aluminum alloy materials, etc., they can replace traditional heavy materials, significantly reducing the weight of the aircraft and improving the load capacity.

[0022] In the stamping manufacturing process of the L-shaped connecting piece, first place the aluminum alloy material on the upper end of the operating table 1. Subsequently, through the cooperation of two conveying components 2, the upper end of the aluminum alloy material is adsorbed and fixed. During the cooperative operation of the two conveying components 2, the aluminum alloy material to be stamped is conveyed forward by a certain distance. During the process of the two conveying components 2 cooperatively conveying the aluminum alloy material forward, the upper and lower coating components 3 are driven by the cooperation of the two conveying components 2 to move the two coating components 3 toward the side close to the aluminum alloy material. At the same time, the two coating components 3 are extruded with lubricating oil and evenly coated on the upper and lower end faces of the aluminum alloy material, reducing the friction between the aluminum alloy material and the mold during stamping and avoiding scratches on the material surface or wear of the mold.

[0023] The lubricating oil mentioned above is a conventional design in the prior art and is commonly used to coat the surface of the aluminum alloy material and the mold during stamping.

[0024] After the aluminum alloy material is conveyed forward by a certain distance, an L-shaped connecting piece is formed by stamping through the cooperation of the stamping component 6. After stamping, the stamping component 6 resets. Through the cooperation of the air blowing component 5 and the stamping component 6, during stamping and resetting, nitrogen gas is always sprayed toward the stamping station to avoid the phenomenon of oxidation of the aluminum alloy material due to temperature rise during stamping. At the same time, during stamping, the stamping component 6 will squeeze out the ejecting component 4. When the stamping component 6 finishes resetting, at this time, the ejecting component 4 is triggered, and the stamped L-shaped connecting piece can be ejected for blanking, and then the next conveying and stamping can be carried out.

[0025] During the operation of this embodiment, the two conveying components 2 use vacuum adsorption to move the aluminum alloy material directionally. While conveying the material, they can also cooperate with the coating components 3 to coat the upper and lower surfaces of the aluminum alloy material, reducing the risks of stamping adhesion and deformation. At the same time, the air blowing component 5 constructs a local nitrogen environment synchronously with the stamping stroke, inhibiting oxidation and taking away heat, improving the surface quality. The ejecting component 4 and the air blowing component 5 cooperate to complete the ejecting action after the stamping component 6 resets, further improving the stamping efficiency.

[0026] Embodiment 2. On the basis of Embodiment 1, this embodiment is to achieve the effect of evenly coating lubricating oil during the process of preparing to stamp the moving aluminum alloy material.

[0027] Refer to Figure 2, a conveyor belt 11 is fixedly connected to the upper rear side of the operating table 1, fixing plates 12 are symmetrically and fixedly connected to the upper end of the operating table 1, a square hole 13 is opened on the upper front side of the operating table 1, a stamping base 14 is fixedly connected to the upper front side of the operating table 1, a cutting seat 15 is fixedly connected to the upper end of the operating table 1 behind the stamping base 14, arc-shaped grooves 121 are opened on the upper parts of the mutually approaching sides of the two fixing plates 12, guide rails one 122 are fixedly connected to the lower parts of the mutually approaching sides of the two fixing plates 12, guide rails two 123 are fixedly connected to the mutually remote sides of the two fixing plates 12, and guide rails three 124 are fixedly connected to the middle parts of the mutually remote sides of the two fixing plates 12.

[0028] After the ejection assembly 4 cooperates to eject the stamped L-shaped connecting piece, it falls into the collection device in the prior art through the inner surface of the square hole 13 and waits for the next operation. At the same time, the material of the stamping base 14 is a material with properties such as high strength and low thermal expansion coefficient in the prior art. At the same time, a shock pad is installed between the lower end of the stamping base 14 and the upper end of the operating table 1 to avoid other damages to the operating table 1 during the stamping process; Similarly, the cutting seat 15 is a commonly used silicon carbide ceramic base in the prior art. When cutting aluminum alloy materials, it can cooperate with the aluminum alloy materials to avoid thermal stress cracking and meet the requirements for the cleanliness of the connecting pieces in the aerospace field at the same time.

[0029] Similarly, the conveyor belt 11 assists the continuous movement of the aluminum alloy materials.

[0030] Refer to Figure 3 and Figure 4, the conveying assembly 2 includes a motor 21 fixedly connected to the left end of the left fixing plate 12. The outer surface of the output end of the motor 21 is drivingly connected with a rotating shaft 211. A first gear 212 is fixedly connected to the outer surface of the rotating shaft 211. The output end of the motor 21 penetrates through the left end of the left fixing plate 12 and extends to the right end of the fixing plate 12. A rotating plate 22 is fixedly connected to the right end of the output end of the motor 21. A limiting groove 221 is formed in the right end of the rotating plate 22. An L-shaped sliding rod 23 is slidably connected to the inner surface of the limiting groove 221. The outer surface of the horizontal part of the L-shaped sliding rod 23 is slidably connected to the inner surface of the arc-shaped groove 121. A telescopic rod 24 is fixedly connected to the lower end of the L-shaped sliding rod 23. An L-shaped rod 27 is fixedly connected to the lower end of the telescopic rod 24. A plurality of suction cups 271 are fixedly connected to the outer surface of the horizontal part of the L-shaped rod 27. A slider 26 is slidably connected to the outer surface of the first guide rail 122. A through hole is formed in the upper end of the slider 26. The upper part of the outer surface of the L-shaped rod 27 is slidably connected to the inner surface of the through hole. A second gear 29 is fixedly connected to the outer surface of the output end of the motor 21. A second rack 291 is meshed with the outer surface of the second gear 29. A pulling plate 292 is fixedly connected to the upper end of the second rack 291. A guide rod 293 is fixedly connected to the upper left part of the fixing plate 12. The right end of the second rack 291 is slidably connected to the outer surface of the guide rod 293. An air bag 25 is fixedly connected to the middle part of the rear end of the second rack 291. A first hose 251 is fixedly connected to the outer surface of the air bag 25. A rectangular plate 252 is fixedly connected to the rear end of the air bag 25. The rectangular plate 252 is fixedly connected to the fixing plate 12.

[0031] One end of the first hose 251 far from the air bag 25 is fixedly connected to a plurality of suction cups 271, and the inner surfaces of the air bag 25, the first hose 251 and a plurality of suction cups 271 are communicated with each other.

[0032] A quick exhaust valve is arranged on the inner surface of the connection part between the first hose 251 and the air bag 25. The quick exhaust valve is a conventional design in the prior art. The quick exhaust valve usually includes a spring or diaphragm structure inside. When the air pressure inside the system is higher than the outside (exhaust stage), the valve automatically opens, and the gas quickly discharges through the large-aperture channel. When the outside air pressure is higher than the inside, the valve is in the closed state, and the gas cannot leak through the exhaust valve.

[0033] The motor 21 on the left side mentioned above is set through a control terminal in the prior art, so that the output end of the motor 21 first rotates counterclockwise by 180° and then rotates clockwise by 180°, and repeats the above operating state after an interval of time.

[0034] When the aluminum alloy material is placed at the rear upper end of the conveyor belt 11, the excitation motor 21 is activated. At this time, the motor 21 operates. When the output end of the motor 21 rotates counterclockwise, it will synchronously drive the rotating plate 22 to rotate. At this time, through the joint cooperation of the limiting groove 221 and the arc groove 121, when the rotating plate 22 rotates counterclockwise, it drives the L-shaped sliding rod 23 to move upward along the inner surface of the vertical part at the rear of the arc groove 121 first, then move forward along the inner surface of the horizontal part of the arc groove 121, and then move downward along the inner surface of the vertical part at the front of the arc groove 121. During the process that the L-shaped sliding rod 23 moves upward along the inner surface of the vertical part at the rear of the arc groove 121 first, the outer surface of the L-shaped sliding rod 23 will move toward the side close to the rotating plate 22 along the inner surface of the limiting groove 221 at the same time; Furthermore, during the process that the L-shaped sliding rod 23 is driven by the rotating plate 22 and the limiting groove 221 to move upward, it will simultaneously pull the telescopic rod 24 upward. At this time, the telescopic rod 24 is stretched; Similarly, since the output end of the motor 21 rotates counterclockwise, it will drive the second gear 29 to rotate in the same direction. Immediately, through the cooperation of the guide rod 293, the rack 291 drives the pull plate 292 to move forward. During the process that the pull plate 292 moves forward, it will continuously stretch the first airbag 25. At the same time, the rectangular plate 252 and the rear end of the first airbag 25 are fixed. At this time, the air pressure inside the first airbag 25 becomes lower. Immediately, through the first hose 251 and the cooperation with a number of suction cups 271, the air between the suction cups 271 and the upper end of the aluminum alloy material is sucked into the first airbag 25. A number of suction cups 271 can stably adsorb the aluminum alloy material; Similarly, refer to Figure 4 , when the L-shaped sliding rod 23 is driven by the rotating plate 22 and the limiting groove 221 to slide upward to the upper part of the inner surface of the vertical part at the rear of the arc groove 121, at this time, the L-shaped sliding rod 23 continues to slide forward along the inner surface of the arc groove 121. During the process that the L-shaped sliding rod 23 slides forward, it will drive the telescopic rod 24, the first airbag 25, the slider 26, the L-shaped rod 27 and the aluminum alloy material adsorbed by a number of suction cups 271 to move forward at the same time, realizing the forward conveying of the aluminum alloy material. During the process that the slider 26 is driven to move forward, the slider 26 slides forward along the first guide rail 122, avoiding the situation of position deviation of the slider 26, the L-shaped rod 27 and a number of suction cups 271 during the forward movement.

[0035] At the same time, during the process that the telescopic rod 24, the slider 26, the L-shaped rod 27 and the aluminum alloy material fixed by a number of suction cups 271 move forward, the pull plate 292 continues to stretch the first airbag 25, so that the first airbag 25 always maintains an air suction state, avoiding the separation of a number of suction cups 271 from the aluminum alloy material during the movement.

[0036] When the output end of the motor 21 rotates 180°, it automatically rotates in the opposite direction 180°. When the motor 21 reverses, the motor 21 will drive the rotating plate 22 and the gear 2 29 to rotate in the opposite direction at the same time, and then the pull plate 292 starts to squeeze the airbag 25. At this time, the internal air pressure of the airbag 25 is relatively high, and the quick exhaust valve opens, so that the gas inside the airbag 25 quickly flows out through the hose 251, and then the gas inside the airbag 25 enters between the plurality of suction cups 271 and the aluminum alloy material through the hose 251, releasing the adsorption and fixation of the aluminum alloy material by the plurality of suction cups 271. During the reversal of the rotating plate 22, the telescopic rod 24, the slider 26 and the L-shaped rod 27 are driven to move backward as a whole through the L-shaped slide bar 23 cooperating with the inner surface of the arc groove 121, and reset to wait for the next forward conveying.

[0037] See also Figure 3 The outer surface of gear 1 212 is symmetrically meshed with rack 1 28 at the front and rear ends, and one end of each rack 1 28 is fixedly connected to a push rod 1 281. The right end of the front rack 1 28 is slidably connected to the outer surface of guide rail 2 123, and the right end of the rear push rod 1 281 is slidably connected to the outer surface of guide rail 3 124.

[0038] The above-mentioned rotating shaft 211 is connected to the outer surface of the output end of the motor 21 through a pulley in the prior art. When the motor 21 is not running, the two racks 28 are limited by the engagement of the gear 1 212 and the two racks 1 28, and the two racks 1 28 will not move.

[0039] When the output end of the motor 21 rotates 180° counterclockwise, it will drive the rotating shaft 211 and the gear 1 212 to rotate in the same direction. During the rotation of the gear 1 212, the two racks 1 28 are driven to operate through meshing, wherein the rack 1 28 located on the front side drives the push rod 1 281 to move downward along the outer surface of the guide rail 2 123, and the rack 1 28 located on the rear side drives the push rod 1 281 to move upward along the outer surface of the guide rail 3 124.

[0040] When the output end of the motor 21 rotates 180° clockwise, the rack 28 located at the front side will drive the push rod 281 to move upward, and the rack 28 located at the rear side will drive the push rod 281 to move downward for reset.

[0041] See also Figure 5 and Figure 6, the smearing assembly 3 includes a dial plate 31 fixedly connected to the lower ends of two upper push rods 281 respectively. The two dial plates 31 are fixedly connected with a telescopic box 32 in common. The two ends of the two dial plates 31 away from each other are respectively slidably connected to the upper end of the operation table 1. The top wall of the inner surface of the telescopic box 32 is fixedly connected with a balloon 33. The lower parts of the front side wall and the rear side wall of the inner surface of the telescopic box 32 are fixedly connected with a felt board 34 in common. A plurality of soft brushes 35 are fixedly connected to the lower end of the felt board 34. The left end and the right end of the felt board 34 are respectively slidably connected to the upper end of the operation table 1.

[0042] In the above, the outer surfaces of the plurality of soft brushes 35 are always in close contact with the surface of the aluminum alloy material. A plurality of seepage holes are formed on the outer surfaces of the plurality of soft brushes 35. In the above, the balloon 33 is connected to an external lubricating oil source and is provided through an external valve. When the balloon 33 is squeezed, the lubricating oil inside the balloon 33 oozes out through the soft brushes 35, and the lubricating oil inside the balloon 33 will not flow back into the external lubricating oil source. When the balloon 33 is stretched, the lubricating oil in the external lubricating oil source will enter the inside of the balloon 33 at this time.

[0043] The above balloon 33 is connected to the inside of the plurality of soft brushes 35 through a pipeline in the prior art. When the balloon 33 is squeezed, the lubricating oil inside the balloon 33 will enter the inside of the plurality of soft brushes 35 through the pipeline and ooze out. Refer to Figure 6 , when the motor 21 rotates counterclockwise by 180 degrees and drives the aluminum alloy material to move forward through the cooperation of the first airbag 25 and the plurality of suction cups 271, the two upper push rods 281 are driven to move downward. Immediately, the two push rods 281 will press down the corresponding dial plates 31, and then the two dial plates 31 cooperate to drive the upper end of the telescopic box 32 to move downward; Furthermore, during the downward movement of the upper end of the telescopic box 32, it will drive the felt board 34 and the plurality of soft brushes 35 to descend. And because the sliding stroke of the felt board 34 is much smaller than the moving stroke of the dial plate 31, when the felt board 34 and the plurality of soft brushes 35 descend to the point where the soft brushes 35 are in close contact with the upper end of the aluminum alloy material, the plurality of soft brushes 35 and the felt board 34 will no longer move. Subsequently, the telescopic box 32 continues to be driven to descend by the two dial plates 31. At this time, the balloon 33 inside the telescopic box 32 is squeezed, and the lubricating oil inside the balloon 33 oozes out through the soft brushes 35 and is evenly smeared on the upper and lower surfaces of the aluminum alloy. At the same time, during the smearing process, the excess lubricating oil is adsorbed by the felt board 34 to prevent the excess lubricating oil from affecting the operation of other structures.

[0044] Similarly, when the two push rods 281 start to push down the dial plates 31, since there is lubricating oil remaining on the outer surface of the soft brushes 35 and the lower part of the outer surface of the soft brushes 35 is always in close contact with the aluminum alloy material, when the push rods 281 start to press down the dial plates 31, the surface of the aluminum alloy material will still be evenly smeared with lubricating oil.

[0045] Furthermore, when the two first push rods 281 located on the upper side move upward, the two first push rods 281 will drive the adapted dial plates 31 to slide upward. Then, the two dial plates 31 drive the upper end of the telescopic box 32 upward. At this time, the balloon 33 is stretched, and the inside of the balloon 33 is filled with lubricating oil again, waiting for the next extrusion and coating.

[0046] Therefore, through the cooperation of structures such as the L-shaped slide rod 23, the L-shaped rod 27, and the first airbag 25, this solution realizes adsorbing the aluminum alloy material and simultaneously conveying the aluminum alloy material forward for stamping preparation. Moreover, during the process of moving the aluminum alloy material, it is also possible to evenly apply lubricating oil to the surface of the aluminum alloy material through the cooperation of structures such as several soft brushes 35, the felt board 34, and the telescopic box 32, avoiding the adhesion between the aluminum alloy material and the mold surface during the stamping process. At the same time, evenly applying the lubricant can reduce the material deformation resistance, enable the aluminum alloy material to flow evenly during stamping, reduce the risk of cracking or wrinkling, and can also slow down the speed of temperature rise through heat dissipation, further improving the stamping quality.

[0047] Embodiment 3. On the basis of Embodiments 1 and 2, this embodiment aims to achieve the effect of ejecting and discharging the stamped parts after the stamping is completed and the die returns to its original position.

[0048] Refer to Figure 7 , the stamping assembly 6 includes a hydraulic cylinder 61 fixedly connected to the upper end of the operating table 1. The output end of the hydraulic cylinder 61 is fixedly connected with a fourth push rod 62. The lower end of the fourth push rod 62 is fixedly connected with a stamping head 63. The outer surface of the fourth push rod 62 is fixedly connected with an L-shaped roller 64. The lower end of the vertical part of the L-shaped roller 64 is fixedly connected with a laser cutting head 65.

[0049] When the aluminum alloy material is moved forward to an appropriate position and is ready to be stamped into an L-shaped connecting piece, the hydraulic cylinder 61 is activated. Immediately, the output end of the hydraulic cylinder 61 will push the fourth push rod 62 and the stamping head 63 downward. During the process of the fourth push rod 62 descending, it will drive the L-shaped roller 64 and the laser cutting head 65 to descend simultaneously.

[0050] At the same time, a sensor is provided at the front end of the laser cutting head 65, and the sensor is electrically connected to the system that controls the operation of the laser cutting head 65 in the prior art. When the laser cutting head 65 descends to a suitable height, at this time the sensor monitors that the height value is appropriate, and immediately sends an instruction to the system that controls the operation of the laser cutting head 65. Then, the system that controls the operation of the laser cutting head 65 activates the laser cutting head 65. Immediately, the laser cutting head 65 can cut the aluminum alloy material. While the laser cutting head 65 moves to cut the aluminum alloy material, the stamping head 63 also descends to closely adhere to the upper end of the aluminum alloy material, ready for stamping and forming. At the same time, the laser cutting head 65 automatically rotates to a horizontal state, without affecting the subsequent stamping process.

[0051] The above-mentioned laser cutting head 65 and the system for controlling the operation of the laser cutting head 65 in the prior art are all conventional designs in the prior art, and the specific operating principle will not be elaborated in detail in this solution.

[0052] Similarly, when the stamping head 63 descends to contact the upper end of the aluminum alloy material, through the cooperation with the upper end of the stamping base 14, the basic shape of the L-shaped connecting piece is formed by stamping the cut aluminum alloy material.

[0053] Similarly, during the reset process of the stamping head 63 and the L-shaped roller 64, the laser cutting head 65 automatically adjusts to the ready-to-cut state.

[0054] Refer to Figure 8 , the air blowing assembly 5 includes a push plate 51 fixedly connected to the outer surface of the horizontal part of the L-shaped roller 64. A second airbag 53 is fixedly connected to the right side of the lower end of the push plate 51. The lower end of the second airbag 53 is fixedly connected to the upper end of the operating table 1. A second hose 531 is fixedly connected to the front side of the outer surface of the second airbag 53. A check valve one is fixedly connected to the outer surface of the second hose 531 near the second airbag 53. A third airbag 54 is fixedly connected to the left side of the upper end of the push plate 51. A third hose 541 is fixedly connected to the front side of the outer surface of the third airbag 54. A check valve two is fixedly connected to the outer surface of the third hose 541 near the third airbag 54. The second hose 531 and the third hose 541 are commonly fixedly connected to a nozzle 52. Push rods three 511 are symmetrically and fixedly connected to the lower end of the push plate 51. Soft ropes 512 are symmetrically and fixedly connected to the rear end of the push plate 51.

[0055] The above-mentioned second airbag 53 and third airbag 54 are respectively connected to an external nitrogen source, and valves are provided. When the second airbag 53 and the third airbag 54 are respectively compressed, the nitrogen inside the second airbag 53 can only enter the inside of the second hose 531 through the check valve one, and the nitrogen inside the third airbag 54 can only enter the inner surface of the third hose 541 through the check valve two. When the second airbag 53 and the third airbag 54 are stretched, the nitrogen in the external nitrogen source enters the second airbag 53 and the third airbag 54 respectively through the valves. Similarly, the external gas will not enter the second airbag 53 through the second hose 531 and the check valve one, nor will it enter the third airbag 54 through the third hose 541 and the check valve two.

[0056] The above-mentioned check valve one and check valve two are both conventional designs in the prior art, and the specific composition and operating principle will not be elaborated in detail in this solution.

[0057] Furthermore, when the output end of the hydraulic cylinder 61 pushes the push rod four 62, the L-shaped roller 64 and the stamping head 63 downward to prepare for stamping, at this time, the L-shaped roller 64 drives the push plate 51 to move downward at the same time. When the push plate 51 descends, it will drive the push rods three 511 to descend at the same time, and at the same time, the soft ropes 512 are in a bent and non-loaded state; During the downward movement of the push plate 51, the airbag three 54 will be continuously stretched and the airbag two 53 will be compressed. During the stretching of the airbag three 54, nitrogen in the external nitrogen source continuously fills the inside of the airbag three 54. During the compression of the airbag two 53, the nitrogen inside the airbag two 53 enters the inside of the nozzle 52 through the one-way valve one and the hose two 531 and is ejected from several nozzles on the outer surface of the nozzle 52.

[0058] After the stamping head 63 finishes stamping, the output end of the hydraulic cylinder 61 drives the stamping head 63 and the L-shaped roller 64 to reset. During the upward movement and reset of the L-shaped roller 64, the push plate 51 is driven upward by the L-shaped roller 64. Immediately, the airbag three 54 is squeezed and the airbag two 53 is stretched. At this time, nitrogen in the external nitrogen source continuously fills the inside of the airbag two 53. During the squeezing of the airbag three 54, the nitrogen inside the airbag three 54 enters the inside of the nozzle 52 through the one-way valve two and the hose three 541 and is sprayed onto the stamping part through several nozzles, taking away the heat on the surfaces of the stamping head 63 and the aluminum alloy material through the airflow and suppressing local high temperature.

[0059] Thus, whether during the stamping process or when the stamping head 63 resets, the aluminum alloy material is always surrounded by nitrogen, which can isolate oxygen, prevent the aluminum alloy from contacting oxygen during high-temperature stamping, form an oxide layer, reduce the oxidation spots or blackening on the surface of the workpiece after stamping, and avoid the oxide layer affecting the adhesion of subsequent processes such as electroplating, spraying, or welding.

[0060] Refer to Figure 9 and Figure 10 , the ejecting assembly 4 includes fixed rollers 41 fixedly connected to the left end and the right end of the cutting seat 15 respectively. The outer surfaces of the two fixed rollers 41 are rotatably connected with inclined plates 42. The lower arc surfaces of the two inclined plates 42 are fixedly connected with first springs 43. The front ends of the two inclined plates 42 are rotatably connected with inclined blocks 44. The upper ends of the same-side inclined blocks 44 and the upper ends of the inclined plates 42 are jointly fixedly connected with arc-shaped springs 441. The front sides of the upper ends of the two inclined plates 42 are respectively movably connected with the lower ends of the adapted soft ropes 512. The upper end of the operating table 1 is fixedly connected with several second springs 47. The upper ends of the several second springs 47 are jointly fixedly connected with a cross plate 46. The upper end of the cross plate 46 is fixedly connected with several second push rods 45. The upper end of the cross plate 46 can closely adhere to the lower ends of the two inclined blocks 44.

[0061] During the downward movement of the push plate 51, at this time, the soft rope 512 is in a bent state. Immediately, the self-weights of the inclined plates 42 and the inclined blocks 44 press down the first springs 43, making the first springs 43 in the shortest state.

[0062] When the two third push rods 511 are driven to descend until they closely adhere to the upper end of the cross plate 46, at this time, the third push rods 511 continue to descend, thus pushing the cross plate 46 downward, and further causing several second push rods 45 to descend simultaneously. Similarly, during the downward movement of the cross plate 46, the several second springs 47 are also compressed.

[0063] During the process of the horizontal plate 46 being pressed downward by the cooperation of the two push rods III 511, the front sides of the upper ends of the two inclined blocks 44 will be simultaneously pressed downward. Immediately afterwards, the inclined blocks 44 will rotate towards the side close to the cutting seat 15 with the axis of rotationally connecting with the inclined plate 42 as the center. During the rotation of the inclined blocks 44, the arc-shaped springs 441 will be simultaneously stretched. At the same time, since the first spring 43 has been in the shortest state, the position of the inclined plate 42 remains unchanged at this time.

[0064] Refer to Figure 10 When the horizontal plate 46 descends to the point where the outer surface of the horizontal plate 46 is about to disengage from the front sides of the upper ends of the inclined blocks 44, at this time, the horizontal plate 46 continues to descend, and the horizontal plate 46 disengages from the inclined blocks 44. Immediately afterwards, the stretched arc-shaped springs 441 reset, thereby driving the inclined blocks 44 to rotate in the reverse direction. Through the design of the front-end baffle of the inclined plate 42, when the upper ends of the inclined blocks 44 rotate to the same plane as the upper ends of the inclined plate 42, the inclined blocks 44 no longer rotate. At this time, the lower ends of the inclined blocks 44 are higher than the upper ends of the horizontal plate 46.

[0065] During the process of the L-shaped roller 64 resetting and driving the push plate 51 and the two push rods III 511 to move upward, at this time, the horizontal plate 46 is no longer being squeezed. Immediately afterwards, the horizontal plate 46 is pushed upward by a number of second springs 47. Due to the limitation of the inclined blocks 44, the horizontal plate 46 and the second springs 47 can only rise a small distance. Immediately afterwards, the lower ends of the inclined blocks 44 come into contact with the upper ends of the horizontal plate 46. At the same time, through the cooperation of the front-end baffle of the inclined plate 42 and the inclined blocks 44, the inclined blocks 44 cannot rotate towards the side close to the soft rope 512. Immediately afterwards, the inclined plate 42 cooperates with the inclined blocks 44 to press down on the upper end of the horizontal plate 46, and at the same time, a number of second springs 47 are still in a compressed state.

[0066] Furthermore, during the upward movement of the push plate 51, the two soft ropes 512 are gradually straightened. When the punching head 63 is about to complete the reset drive, at this time, the soft ropes 512 are in a straightened and non-loaded state. Immediately afterwards, the punching head 63 continues to move upward. At this time, the soft ropes 512 are stressed and pull the front side of the upper end of the inclined plate 42 upward, causing the inclined plate 42 and the inclined blocks 44 to simultaneously rotate upward around the axis of the fixed roller 41. Immediately afterwards, the lower ends of the inclined blocks 44 no longer press against the horizontal plate 46. At this time, the compressed second springs 47 reset, thereby driving the horizontal plate 46 and a number of push rods II 45 to move upward. During the upward movement of a number of push rods II 45, the L-shaped connecting pieces punched at the upper end of the punching base 14 are ejected. After being ejected, the L-shaped connecting pieces fall into the collection device in the prior art through the square holes 13 and wait for the next operation.

[0067] Therefore, in this solution, the L-shaped roller 64 cooperates with the push plate 51, the third airbag 54, and the second airbag 53, so that the area around the stamping part is always filled with nitrogen during both the stamping preparation process and the reset process. Before stamping, the nitrogen injection can purge the dust and debris in the stamping area, prevent impurities from being pressed into the surface of the workpiece, and reduce defects such as scratches and indentations. During the stamping process, the nitrogen gas flow can reduce the friction coefficient between the material and the die, improve the material fluidity, and reduce the probability of adhesion between the material and the die, ensuring smooth demolding. During the stamping and reset processes, through the cooperation of the inclined block 44, the cross plate 46, the second push rod 45 and other structures, the stamping part is automatically ejected and unloaded only after the reset is completed, ensuring that the ejection force is triggered only after the stamping head 63 is fully reset, and avoiding the situation where the stamping head 63 obstructs the second push rod 45 during the ejection of the stamping part.

[0068] It should be specifically noted that the specific installation methods of the motor 21 and the hydraulic cylinder 61, the connection method of the circuit, and the control method adopted in the present invention are all conventional designs, and the present invention will not elaborate in detail.

[0069] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mechanical engineering parts punching device with an ejection structure, comprising an operating table (1), characterized in that: A conveying assembly (2) is symmetrically arranged at the middle of the upper end of the operating table (1), a smearing assembly (3) is symmetrically arranged at the upper and lower middle of the upper end of the operating table (1), a punching assembly (6) is fixedly connected to the front side of the upper end of the operating table (1), a blowing assembly (5) is arranged at the upper end of the operating table (1) in front of the punching assembly (6), and an ejection assembly (4) is symmetrically arranged at the upper end of the operating table (1) below the punching assembly (6).

2. A mechanical engineering parts punching device with an ejection structure according to claim 1, characterized in that: A conveying belt (11) is fixedly connected to the rear side of the upper end of the operating table (1), a fixing plate (12) is symmetrically fixedly connected to the upper end of the operating table (1), a square hole (13) is opened on the front side of the upper end of the operating table (1), a stamping base (14) is fixedly connected to the front side of the upper end of the operating table (1), and a cutting base (15) is fixedly connected to the upper end of the operating table (1) at the rear side of the stamping base (14).

3. A mechanical engineering parts punching device with an ejection structure according to claim 2, characterized in that: An arc groove (121) is provided at the upper part of the side where the two fixing plates (12) are close to each other, a guide rail 1 (122) is fixedly connected to the lower part of the side where the two fixing plates (12) are close to each other, a guide rail 2 (123) is fixedly connected to the side where the two fixing plates (12) are away from each other, and a guide rail 3 (124) is fixedly connected to the middle part of the side where the two fixing plates (12) are away from each other.

4. A mechanical engineering parts punching device with an ejection structure according to claim 3, characterized in that: The conveying assembly (2) comprises a motor (21) fixedly connected to the left end of the left fixed plate (12); the outer surface of the output end of the motor (21) is drivingly connected to a rotating shaft (211); the outer surface of the rotating shaft (211) is fixedly connected to a gear 1 (212); the output end of the motor (21) passes through the left end of the left fixed plate (12) and extends to the right end of the fixed plate (12); the right end of the output end of the motor (21) is fixedly connected to a rotating plate (22); a limiting groove (221) is provided at the right end of the rotating plate (22); an L-shaped sliding rod (23) is slidably connected to the inner surface of the limiting groove (221); the outer surface of the horizontal portion of the L-shaped sliding rod (23) is slidably connected to the inner surface of the arc groove (121); the lower end of the L-shaped sliding rod (23) is fixedly connected to a telescopic rod (24); the lower end of the telescopic rod (24) is fixedly connected to an L-shaped rod (27); the outer surface of the horizontal portion of the L-shaped rod (27) is fixedly connected to A plurality of suction cups (271) are provided. The outer surface of the guide rail 1 (122) is slidably connected to a slider (26). A through hole is provided at the upper end of the slider (26). The upper outer surface of the L-shaped rod (27) is slidably connected to the inner surface of the through hole. The outer surface of the output end of the motor (21) is fixedly connected to a gear 2 (29). The outer surface of the gear 2 (29) is meshed with a rack 2 (291). The upper end of the rack 2 (291) is fixedly connected to a pull plate (292). The upper left end of the fixed plate (12) is fixedly connected to a guide rod (293). The right end of the rack 2 (291) is slidably connected to the outer surface of the guide rod (293). The middle rear end of the rack 2 (291) is fixedly connected to an airbag 1 (25). The outer surface of the airbag 1 (25) is fixedly connected to a hose 1 (251). The rear end of the airbag 1 (25) is fixedly connected to a rectangular plate (252). The rectangular plate (252) is fixedly connected to the fixed plate (12).

5. A mechanical engineering parts punching device with an ejection structure according to claim 4, characterized in that: The outer surface of gear one (212) is symmetrically meshed with rack one (28) at the front and rear ends, and one end of each of the two racks one (28) is fixedly connected to a push rod one (281). The right end of the rack one (28) located on the front side is slidably connected to the outer surface of the guide rail two (123), and the right end of the push rod one (281) located on the rear side is slidably connected to the outer surface of the guide rail three (124).

6. A mechanical engineering parts punching device with an ejection structure according to claim 5, characterized in that: The smearing assembly (3) comprises a paddle (31) fixedly connected to the lower ends of two push rods (281) located on the upper side, the two paddles (31) are fixedly connected to a telescopic box (32) at one end away from each other, the two paddles (31) are slidably connected to the upper end of the operating table (1), the top wall of the inner surface of the telescopic box (32) is fixedly connected to a ball capsule (33), the lower part of the front side wall and the rear side wall of the inner surface of the telescopic box (32) are fixedly connected to a felt plate (34), and the lower end of the felt plate (34) is fixedly connected to a plurality of soft brushes (35).

7. A mechanical engineering parts punching device with an ejection structure according to claim 2, characterized in that: The punching assembly (6) comprises a hydraulic cylinder (61) fixedly connected to the upper end of the operating table (1); a push rod four (62) is fixedly connected to the output end of the hydraulic cylinder (61); a punching head (63) is fixedly connected to the lower end of the push rod four (62); an L-shaped roller (64) is fixedly connected to the outer surface of the push rod four (62); and a laser cutting head (65) is fixedly connected to the lower end of the vertical portion of the L-shaped roller (64).

8. A mechanical engineering parts punching device with an ejection structure according to claim 7, characterized in that: The blowing assembly (5) comprises a push plate (51) fixedly connected to the outer surface of the horizontal portion of the L-shaped roller (64); the right side of the lower end of the push plate (51) is fixedly connected to the second airbag (53); the lower end of the second airbag (53) is fixedly connected to the upper end of the operating table (1); the front side of the outer surface of the second airbag (53) is fixedly connected to the second hose (531); the outer surface of the second hose (531) is fixedly connected to the side of the second airbag (53) near the second airbag (53); the left side of the upper end of the push plate (51) is fixedly connected to the second airbag (53); The side of the push plate (51) is fixedly connected to an airbag three (54), the front side of the outer surface of the airbag three (54) is fixedly connected to a hose three (541), the outer surface of the hose three (541) is fixedly connected to a one-way valve two on the side close to the airbag three (54), the hose two (531) and the hose three (541) are fixedly connected to a nozzle (52), the lower end of the push plate (51) is symmetrically fixedly connected to a push rod three (511), and the rear end of the push plate (51) is symmetrically fixedly connected to a soft rope (512).

9. A mechanical engineering parts punching device with an ejection structure according to claim 8, characterized in that: The ejection assembly (4) comprises fixed rollers (41) respectively fixedly connected to the left and right ends of the cutting seat (15); the outer surfaces of the two fixed rollers (41) are rotatably connected to inclined plates (42); the lower arc surfaces of the two inclined plates (42) are fixedly connected to springs 1 (43); the front ends of the two inclined plates (42) are rotatably connected to inclined blocks (44); the upper ends of the inclined blocks (44) and the upper ends of the inclined plates (42) on the same side are fixedly connected to arc springs (441); and the front sides of the upper ends of the two inclined plates (42) are respectively movably connected to the lower ends of the matching soft ropes (512).

10. A mechanical engineering parts punching device with an ejection structure according to claim 9, characterized in that: The upper end of the operating table (1) is fixedly connected to a plurality of springs (47), the upper ends of the plurality of springs (47) are commonly fixedly connected to a transverse plate (46), the upper end of the transverse plate (46) is fixedly connected to a plurality of push rods (45), and the upper end of the transverse plate (46) can be tightly attached to the lower ends of the two inclined blocks (44).

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