Stamping die with safety protection function

Abstract

The utility model relates to a stamping die with a safety protection function, which relates to the technical field of stamping dies and comprises a base, the upper surface of the base is fixedly connected with a fixed die, a corresponding movable die is arranged above the fixed die, the lower surface of the movable die is fixedly connected with a punch, and a pressing plate is arranged between the fixed die and the movable die. A through hole is formed in the upper surface of the pressing plate for the punch to penetrate through, an oil smearing ring is arranged on the inner wall of the through hole, the pressing plate comprises an outer groove plate and an inner groove plate detachably connected to the inner wall of the outer groove plate, and an oil supply assembly for supplying lubricating oil to the oil smearing ring is arranged on the inner bottom wall of the inner groove plate. One side of the movable die is fixedly connected with an infrared temperature sensor to detect the amount of lubricating oil on the surface of the punch. According to the utility model, the infrared temperature sensor is arranged to monitor the temperature of the punch, so that the amount of lubricating oil on the surface of the punch is detected, the lubricating oil can be added to the surface of the punch by using the oil supply assembly and the oiling ring when the lubricating oil is insufficient, the addition of the lubricating oil can be controlled, and the waste of the lubricating oil is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of stamping dies, and particularly relates to a stamping die with a safety protection function. Background Art

[0002] Stamping dies are usually used for stamping metal or alloy plates with specific shapes and holes. During the continuous stamping process of the die, due to frequent contact between the punch and the workpiece, the punch is easily scratched. When the scratched punch is used for punching, it is easy to scrape out waste materials, which affects production and causes appearance damage problems such as pressing and imprinting on the produced products.

[0003] After retrieval, a Chinese patent with the publication number CN 220739168 U discloses a self-lubricating stamping die, which has a structure of an oil inlet hole, an oil inlet groove, and a punch hole with an oil inlet slit on the stripping lubricating plate, enabling the punch to be self-lubricated during continuous operation. The generated waste materials are discharged through the lower die insert along with the lubricating oil, which is beneficial to improving the wear state of the punch during punching, increasing the service life of the punch, reducing the situation of the punch being scratched and cutting materials, reducing the amount of waste materials, and avoiding appearance surface damage such as pressing and imprinting on the products. Although the lubrication method in this device continuously lubricates the punch, it causes waste of lubricating oil.

[0004] In order to solve the above problems, a stamping die with a safety protection function is proposed in the utility model. Content of the Utility Model

[0005] (1) Technical Problems to be Solved

[0006] The purpose of the utility model is to overcome the problem of easy waste of lubricating oil in the prior art, and provide a stamping die with a safety protection function to solve the above technical problems.

[0007] (2) Technical Solutions

[0008] In order to achieve the purpose of the utility model, the technical solutions adopted by the utility model are as follows:

[0009] A stamping die with a safety protection function includes a base. A fixed die is fixedly connected to the upper surface of the base. A corresponding movable die is arranged above the fixed die. A punch is fixedly connected to the lower surface of the movable die. A pressure plate is arranged between the fixed die and the movable die. A through hole is arranged on the upper surface of the pressure plate for the punch to pass through. An oil wiping ring is arranged on the inner wall of the through hole. The pressure plate includes an outer groove plate and an inner groove plate detachably connected to the inner wall of the outer groove plate. An oil supply component for supplying lubricating oil to the oil wiping ring is arranged on the inner bottom wall of the inner groove plate. An infrared temperature sensor is fixedly connected to one side of the movable die to detect the amount of lubricating oil on the surface of the punch.

[0010] Further, a sliding rod is fixedly connected to the upper surface of the base. A sliding sleeve is slidably connected to the surface of the sliding rod. An installation hole is formed in the upper surface of the moving die, and the inner wall of the installation hole is fixedly connected to the surface of the sliding sleeve. A sliding hole is formed in the upper surface of the moving die, and a support rod is slidably connected to the inner wall of the sliding hole. The bottom end of the support rod is fixedly connected to the upper surface of the outer groove plate. A telescopic spring is sleeved on the surface of the support rod. The top end of the telescopic spring is fixedly connected to the lower surface of the moving die, and the bottom end of the telescopic spring is fixedly connected to the upper surface of the outer groove plate.

[0011] Further, the oil supply assembly includes an oil storage box for storing oil. An end cover is fixedly connected to the end face of the oil storage box. An oil injection hole is formed in the upper surface of the oil storage box, and a plug is arranged in the oil injection hole. A connecting pipe is fixedly connected to one side of the end cover, and the connecting pipe is communicated with the oil wiping ring.

[0012] Further, the oil wiping ring has a contact surface that fits the punch. An oil wiping groove penetrating the contact surface is arranged inside the oil wiping ring. A reserved pipe communicated with the oil wiping groove is fixedly connected to the surface of the oil wiping ring. One end of the reserved pipe is detachably connected to the connecting pipe.

[0013] Further, a sliding block is slidably connected to the inner wall of the oil storage box. A reset spring is fixedly connected to one side of the sliding block, and the other end of the reset spring is fixedly connected to the inner wall of the oil storage box. A communicating pipe is fixedly connected to one end of the oil storage box. A groove is formed in the upper surface of the base, and an air supply assembly for injecting air into the communicating pipe is arranged inside the groove.

[0014] Further, the air supply assembly includes a piston cylinder fixedly connected to the inner wall of the groove. A moving piston is slidably connected to the inner wall of the piston cylinder. An air inlet pipe and an air outlet pipe communicated with the piston cylinder are respectively fixedly connected to one side of the base. An air inlet one-way valve is fixedly connected to the surface of the air inlet pipe, and an air outlet one-way valve is fixedly connected to the surface of the air outlet pipe. A movable pipe is slidably connected to the inner wall of the air outlet pipe. The movable pipe is detachably connected to the communicating pipe. An active solenoid valve is fixedly connected to the surface of the movable pipe. An air release pipe is fixedly connected to the surface of the movable pipe, and a release solenoid valve is fixedly connected to the surface of the air release pipe.

[0015] Further, a threaded lead screw is rotatably connected to the inner wall of the groove. An internally threaded block is threadedly connected to the surface of the threaded lead screw. A connecting rod is fixedly connected to the lower surface of the internally threaded block, and one end of the connecting rod is fixedly connected to the moving piston. A rack is fixedly connected to the lower surface of the inner groove plate. A driving gear is fixedly connected to the surface of the threaded lead screw, and the rack meshes with the driving gear.

[0016] Further, the oiling ring is in a conical shape with a larger upper part and a smaller lower part and has an opening at the bottom. The outer wall of the oiling ring can clean the sludge on the surface of the punch. A support ring is fixedly connected to the upper surface of the inner groove plate, and a guiding cover in an umbrella shape with an opening at the top is fixedly connected to the top of the support ring.

[0017] Further, a ring-shaped boss is formed at the position corresponding to the through hole on the inner top wall of the outer groove plate. A driven gear is rotatably connected to the lower surface of the boss. A fixing rod is fixedly connected to the inner wall of the driven gear. One end of the fixing rod is fixedly connected to a scraping strip that fits the outer wall. A fixing pipe is fixedly connected to the inner top wall of the outer groove plate. The bottom end of the fixing pipe is rotatably connected to a driving gear, and the driving gear meshes with the driven gear. A lightweight hole is formed on the upper surface of the driving gear. A rotating blade is fixedly connected to the inner wall of the lightweight hole. A branch pipe is fixedly connected to the surface of the movable pipe. One end of the branch pipe penetrates the inner wall of the outer groove plate and extends into the inner groove plate. One end of the branch pipe is fixedly connected to the surface of the fixing pipe and penetrates the inner wall of the fixing pipe. The branch pipe is located above the rotating blade. A branch solenoid valve is fixedly connected to the surface of the branch pipe. One end of the air release pipe is fixedly connected to the surface of the branch pipe and penetrates the inner wall of the branch pipe. An air release one-way valve is fixedly connected to the surface of the air release pipe.

[0018] Further, a jet ring with air holes at the bottom is fixedly connected to the lower surface of the sliding sleeve. A ventilation pipe is fixedly connected between the front jet ring and the rear jet ring. A limiting pipe is fixedly connected to the surface of the ventilation pipe. A gas supply pipe is slidably connected to the inner wall of the limiting pipe. The bottom end of the gas supply pipe is fixedly connected to the upper surface of the outer groove plate and penetrates the inner top wall of the outer groove plate.

[0019] (3) Beneficial effects:

[0020] A. In the present utility model, by setting an infrared temperature sensor to monitor the temperature of the punch, the amount of lubricating oil on the surface of the punch is detected, so that when the lubricating oil is insufficient, the oil supply component and the oiling ring are used to add lubricating oil to the surface of the punch, thereby being able to control the addition of lubricating oil and reduce the waste of lubricating oil.

[0021] B. In the present utility model, when the pressing plate moves downward, it drives the rack to move downward, which in turn drives the driving gear to rotate, which in turn drives the threaded lead screw to rotate, which in turn drives the internally threaded block to move, which in turn drives the connecting rod to move, which in turn drives the moving piston to move away from the driving gear, so that the air in the piston cylinder enters the oil storage box through the air outlet pipe, so that the pressure on one side of the sliding block in the oil storage box becomes larger, so that the sliding block moves towards the end cover against the acting force of the return spring, so that the lubricating oil in the oil storage box is applied to the surface of the punch through the connecting pipe, the reserved pipe and the oiling groove to protect the punch.

[0022] C. In the present utility model, by providing a movable solenoid valve and a branch solenoid valve, when lubrication is not required, the movable solenoid valve is closed and the branch solenoid valve is opened, so that air enters the fixed pipe through the branch pipe and is ejected. By providing a rotating blade, when the air flows in the fixed pipe, the rotating blade is driven to rotate, thereby driving the driving gear to rotate, further driving the driven gear to rotate, and further driving the fixed rod and the scraping strip to rotate to clean the surface of the outer wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0024] Figure 2 is a three-dimensional structural schematic diagram of the base and the fixed mold of the present utility model;

[0025] Figure 3 is a three-dimensional structural schematic diagram of the movable mold and the punch of the present utility model;

[0026] Figure 4 is a front view structural schematic diagram of the present utility model;

[0027] Figure 5 is a front sectional structural schematic diagram of the pressing plate of the present utility model

[0028] Figure 6 For the present utility model Figure 4 the enlarged structural schematic diagram at A;

[0029] Figure 7 is a three-dimensional structural schematic diagram of the inner groove plate of the present utility model;

[0030] Figure 8 is a sectional structural schematic diagram of the oil storage box of the present utility model;

[0031] Figure 9 is a three-dimensional structural schematic diagram of the outer groove plate of the present utility model;

[0032] Figure 10 is a sectional structural schematic diagram of the base of the present utility model;

[0033] Figure 11 is a sectional structural schematic diagram of the movable piston cylinder of the present utility model;

[0034] Figure 12 is a sectional structural schematic diagram of the fixed pipe of the present utility model;

[0035] Figure 13 is a three-dimensional structural schematic diagram of the scraping strip of the present utility model;

[0036] Figure 14 is a three-dimensional structural schematic diagram of the air jet ring, the limit pipe and the air supply pipe of the present utility model.

[0037] The reference numerals are as follows:

[0038] 1. Base; 2. Fixed mold; 3. Movable mold; 4. Punch; 5. Through hole; 6. Oil wiping ring; 7. Outer groove plate; 8. Inner groove plate; 9. Oil supply assembly; 901. Oil storage box; 902. End cover; 903. Plug cock; 904. Connecting pipe; 10. Infrared temperature sensor; 11. Slide bar; 12. Slide sleeve; 13. Air supply pipe; 14. Support rod; 15. Telescopic spring; 16. Contact surface; 17. Oil wiping groove; 18. Reserved pipe; 19. Sliding block; 20. Return spring; 21. Connecting pipe; 22. Groove; 23. Air supply assembly; 2301. Piston cylinder; 2302. Moving piston; 2303. Intake pipe; 2304. Outlet pipe; 2305. Intake one-way valve; 2306. Outlet one-way valve; 2307. Movable pipe; 2308. Bleeder pipe; 2309. Bleeder solenoid valve; 2310. Movable solenoid valve; 24. Threaded lead screw; 25. Internal thread block; 26. Connecting rod; 27. Rack; 28. Driving gear; 29. Outer wall; 30. Support ring; 31. Guide cover; 32. Boss; 33. Driven gear; 34. Fixed rod; 35. Scraping strip; 36. Fixed pipe; 37. Driving gear; 38. Lightweight hole; 39. Rotating blade; 40. Branch pipe; 41. Branch solenoid valve; 42. Bleeder one-way valve; 43. Jet ring; 44. Vent pipe; 45. Limit pipe. Detailed implementation manners

[0039] The following further describes the present utility model in conjunction with the Figures 1-14 accompanying drawings and embodiments:

[0040] As Figures 1-14 shown, a stamping die with a safety protection function includes a base 1. A fixed mold 2 is fixedly connected to the upper surface of the base 1. A corresponding movable mold 3 is arranged above the fixed mold 2. A punch 4 is fixedly connected to the lower surface of the movable mold 3. A pressure plate is arranged between the fixed mold 2 and the movable mold 3. A through hole 5 is arranged on the upper surface of the pressure plate for the punch 4 to pass through. An oil wiping ring 6 is arranged on the inner wall of the through hole 5. The pressure plate includes an outer groove plate 7 and an inner groove plate 8 detachably connected to the inner wall of the outer groove plate 7. An oil supply assembly 9 for supplying lubricating oil to the oil wiping ring 6 is arranged on the inner bottom wall of the inner groove plate 8. An infrared temperature sensor 10 is fixedly connected to one side of the movable mold 3 to detect the lubricating oil amount on the surface of the punch 4.

[0041] Specifically, by arranging the infrared temperature sensor 10 to monitor the temperature of the punch 4, the lubricating oil amount on the surface of the punch 4 is detected, so that when the lubricating oil is insufficient, the oil supply assembly 9 and the oil wiping ring 6 are used to add lubricating oil to the surface of the punch 4, thereby being able to control the addition of lubricating oil, reduce the waste of lubricating oil, add lubricating oil to the punch 4 when the lubricating oil is insufficient, protect the punch 4, and improve the safety of the stamping die.

[0042] The upper surface of the base 1 is fixedly connected with a sliding rod 11. The surface of the sliding rod 11 is slidably connected with a sliding sleeve 12. An installation hole is formed in the upper surface of the moving die 3, and the inner wall of the installation hole is fixedly connected with the surface of the sliding sleeve 12. A sliding hole is formed in the upper surface of the moving die 3, and a support rod 14 is slidably connected to the inner wall of the sliding hole. The bottom end of the support rod 14 is fixedly connected with the upper surface of the outer groove plate 7. A telescopic spring 15 is sleeved on the surface of the support rod 14. The top end of the telescopic spring 15 is fixedly connected with the lower surface of the moving die 3, and the bottom end of the telescopic spring 15 is fixedly connected with the upper surface of the outer groove plate 7. By providing the sliding rod 11 and the sliding sleeve 12, the stamping accuracy is improved. By providing the support rod 14 to support the pressing block, and at the same time, the workpiece is pressed by the pressing block before stamping to prevent deviation. Among them, limiting blocks are provided at the top ends of the sliding rod 11 and the support rod 14.

[0043] The oil supply assembly 9 includes an oil storage box 901 for storing oil. An end cover 902 is fixedly connected to the end face of the oil storage box 901. An oil injection hole is formed in the upper surface of the oil storage box 901, and a plug 903 is arranged in the oil injection hole. A connecting pipe 904 is fixedly connected to one side of the end cover 902. The connecting pipe 904 is communicated with the oil wiping ring 6. By providing the oil storage box 901 to store lubricating oil, and by providing the connecting pipe 904, the lubricating oil in the oil storage box 901 is injected into the oil wiping ring 6.

[0044] The oil wiping ring 6 has a contact surface 16 that fits the punch 4. An oil wiping groove 17 penetrating the contact surface 16 is arranged inside the oil wiping ring 6. A reserved pipe 18 communicated with the oil wiping groove 17 is fixedly connected to the surface of the oil wiping ring 6. One end of the reserved pipe 18 is detachably connected to the connecting pipe 904.

[0045] A sliding block 19 is slidably connected to the inner wall of the oil storage box 901. One side of the sliding block 19 is fixedly connected with a return spring 20. The other end of the return spring 20 is fixedly connected with the inner wall of the oil storage box 901. A communicating pipe 21 is fixedly connected to one end of the oil storage box 901. A groove 22 is formed in the upper surface of the base 1, and an air supply assembly 23 for injecting air into the communicating pipe 21 is arranged inside the groove 22. Through the sliding block 19.

[0046] The air supply component 23 includes a piston cylinder 2301 fixedly connected to the inner wall of the groove 22. A moving piston 2302 is slidably connected to the inner wall of the piston cylinder 2301. One side of the base 1 is fixedly connected with an intake pipe 2303 and an outlet pipe 2304 that are communicated with the piston cylinder 2301. An intake check valve 2305 is fixedly connected to the surface of the intake pipe 2303, and an outlet check valve 2306 is fixedly connected to the surface of the outlet pipe 2304. A movable pipe 2307 is slidably connected to the inner wall of the outlet pipe 2304. The movable pipe 2307 is detachably connected to the communicating pipe 21. An active solenoid valve 2310 is fixedly connected to the surface of the movable pipe 2307. A bleed pipe 2308 is fixedly connected to the surface of the movable pipe 2307, and a bleed solenoid valve 2309 is fixedly connected to the surface of the bleed pipe 2308.

[0047] A threaded lead screw 24 is rotatably connected to the inner wall of the groove 22. An internally threaded block 25 is threadedly connected to the surface of the threaded lead screw 24. A connecting rod 26 is fixedly connected to the lower surface of the internally threaded block 25. One end of the connecting rod 26 is fixedly connected to the moving piston 2302. A rack 27 is fixedly connected to the lower surface of the inner groove plate 8. A driving gear 28 is fixedly connected to the surface of the threaded lead screw 24. The rack 27 meshes with the driving gear 28.

[0048] Specifically, the downward movement of the pressing plate drives the rack 27 to move downward, thereby driving the driving gear 28 to rotate, thereby driving the threaded lead screw 24 to rotate, thereby driving the internally threaded block 25 to move, thereby driving the connecting rod 26 to move, thereby driving the moving piston 2302 to move away from the driving gear 28, so that the air in the piston cylinder 2301 enters the oil storage box 901 through the outlet pipe 2304, so that the pressure on one side of the sliding block 19 in the oil storage box 901 becomes larger, so that the sliding block 19 overcomes the acting force of the return spring 20 and moves toward the end cover 902, so that the lubricating oil in the oil storage box 901 is applied to the surface of the punch 4 through the connecting pipe 904, the reserved pipe 18 and the oiling groove 17 to realize the protection of the punch 4. Among them, the bleed pipe 2308 is used to stop injecting air into the oil storage box 901 after stopping the lubricating oil. The return spring 20 resets and drives the movable block to move, and discharges the air in the oil storage box 901 through the bleed pipe 2308, so that the pressure in the oil storage box 901 is not enough to discharge the lubricating oil from the oiling groove 17, reducing its waste.

[0049] The oiling ring 6 is conical with a larger upper part and a smaller lower part and has an opening at the bottom. The oiling ring 6 has an outer wall 29 that can clean the sludge on the surface of the punch 4. A support ring 30 is fixedly connected to the upper surface of the inner groove plate 8. The top of the support ring 30 is fixedly connected to a guide cover 31 that is umbrella-shaped and has an opening at the top. By providing the outer wall 29, during the upward movement of the punch 4 after stamping, the outer wall 29 can remove the sludge formed by the mixture of debris or dust and lubricating oil on the surface of the punch 4. By providing the guide cover 31, the sludge that falls under gravity is introduced into the inner groove plate 8 for convenient centralized collection.

[0050] At the position corresponding to the through hole 5 on the inner top wall of the outer groove plate 7, a ring-shaped boss 32 is formed. The lower surface of the boss 32 is rotatably connected to a driven gear 33. The inner wall of the driven gear 33 is fixedly connected to a fixing rod 34. One end of the fixing rod 34 is fixedly connected to a scraping strip 35 that fits against the outer wall 29. The inner top wall of the outer groove plate 7 is fixedly connected to a fixing pipe 36. The bottom end of the fixing pipe 36 is rotatably connected to a driving gear 37, and the driving gear 37 meshes with the driven gear 33. A lightweight hole 38 is formed on the upper surface of the driving gear 37. The inner wall of the lightweight hole 38 is fixedly connected to a rotating blade 39. A branch pipe 40 is fixedly connected to the surface of the movable pipe 2307. One end of the branch pipe 40 penetrates the inner wall of the outer groove plate 7 and extends into the interior of the inner groove plate 8. One end of the branch pipe 40 is fixedly connected to the surface of the fixing pipe 36 and penetrates the inner wall of the fixing pipe 36. The branch pipe 40 is located above the rotating blade 39. A branch solenoid valve 41 is fixedly connected to the surface of the branch pipe 40. One end of the air discharge pipe 2308 is fixedly connected to the surface of the branch pipe 40 and penetrates the inner wall of the branch pipe 40. An air discharge one-way valve 42 is fixedly connected to the surface of the air discharge pipe 2308.

[0051] Specifically, by providing the movable solenoid valve 2310 and the branch solenoid valve 41, when lubrication is not required, the movable solenoid valve 2310 is closed and the branch solenoid valve 41 is opened, so that air enters the fixing pipe 36 through the branch pipe 40 and is ejected. By providing the rotating blade 39, when the air flows in the fixing pipe 36, the rotating blade 39 is driven to rotate, thereby driving the driving gear 37 to rotate, further driving the driven gear 33 to rotate, and further driving the fixing rod 34 and the scraping strip 35 to rotate to clean the surface of the outer wall 29.

[0052] The lower surface of the sliding sleeve 12 is fixedly connected to a jet ring 43 with air holes at the bottom. A ventilation pipe 44 is fixedly connected between the front jet ring 43 and the rear jet ring 43. A limiting pipe 45 is fixedly connected to the surface of the ventilation pipe 44. A gas supply pipe 13 is slidably connected to the inner wall of the limiting pipe 45. The bottom end of the gas supply pipe 13 is fixedly connected to the upper surface of the outer groove plate 7 and penetrates the inner top wall of the outer groove plate 7.

[0053] Specifically, through the cooperation of the air supply pipe 13 and the limiting pipe 45, the air between the outer groove plate 7 and the inner groove plate 8 passes through the air jet ring 43 and is ejected from the air holes. The ejected air flow blows off the dust on the sliding rod 11, improving the service life of the sliding rod 11.

[0054] Working principle: When the stamping die with safety protection function is in use, the user first places the workpiece on the fixed die 2, and then starts the external driving device to drive the moving die 3 to move downward. The moving die 3 drives the punch 4 to move downward, and at the same time, the moving die 3 drives the pressure plate to move downward. The pressure plate first presses the workpiece tightly, and the punch 4 continues to move downward to punch the workpiece. Then, the moving die 3 drives the punch 4 and the pressure plate to move upward and reset. During this process, when the punch 4 moves upward after stamping is completed, the outer wall 29 scrapes off the sludge formed by the mixture of debris or dust and lubricating oil on the surface of the punch 4. The guide cover 31 guides the sludge falling under gravity into the inner groove plate 8 for convenient centralized collection. At the same time, during the downward movement of the pressure plate, under normal conditions, the movable solenoid valve 2310 is closed and the branch solenoid valve 41 is opened. The pressure plate drives the rack 27 to move downward, the rack 27 drives the driving gear 28 to rotate, the driving gear 28 drives the threaded lead screw 24 to rotate, the threaded lead screw 24 drives the internally threaded block 25 to move, the internally threaded block 25 drives the connecting rod 26 to move, and the connecting rod 26 drives the moving piston 2302 to move away from the driving gear 28. The air in the piston cylinder 2301 is ejected through the air outlet pipe 2304, the movable pipe 2307, and the branch pipe 40 into the fixed pipe 36. When the air flows in the fixed pipe 36, it drives the rotating blade 39 to rotate. The rotating blade 39 drives the driving gear 37 to rotate, the driving gear 37 drives the driven gear 33 to rotate, and the driven gear 33 drives the fixed rod 34 and the scraping strip 35 to rotate to clean the surface of the outer wall 29. When the infrared temperature sensor 10 detects that the temperature of the punch 4 is relatively high, that is, when the lubricating oil on the surface of the punch 4 is insufficient, the external controller controls the movable solenoid valve 2310 to open, and the branch solenoid valve 41 and the air release solenoid valve 2309 are closed. At this time, the air in the piston cylinder 2301 enters the oil storage box 901 through the air outlet pipe 2304 and the movable pipe 2307, making the pressure on one side of the sliding block 19 in the oil storage box 901 increase. As a result, the sliding block 19 overcomes the acting force of the return spring 20 and moves towards the end cover 902, and lubricating oil in the oil storage box 901 is applied to the surface of the punch 4 through the connecting pipe 904, the reserved pipe 18, and the oil application groove 17 to protect the punch 4. After lubrication is completed, the branch solenoid valve 41 and the air release solenoid valve 2309 are opened again, and the movable solenoid valve 2310 is closed. At this time, with the cooperation of the air release check valve 42, the return spring 20 resets and drives the movable block to move, and the air in the oil storage box 901 is discharged through the air release pipe 2308, making the pressure in the oil storage box 901 insufficient to discharge the lubricating oil from the oil application groove 17, reducing its waste. Similarly, during the downward movement of the pressure plate, the moving piston 2302 moves in the opposite direction, and external air enters the piston cylinder 2301 through the air inlet pipe 2303 for the next use. The air between the outer groove plate 7 and the inner groove plate 8 enters the jet ring 43 through the air supply pipe 13 and the limit pipe 45 and is ejected from the air holes. The ejected airflow blows off the dust on the slide bar 11, improving the service life of the slide bar 11.Thus, the stamping die with a safety protection function has the effect of reducing the waste of lubricating oil.

[0055] The embodiments disclosed in the present utility model are preferred embodiments, but not limited thereto. Those of ordinary skill in the art can easily understand the spirit of the present utility model based on the above embodiments and make different extensions and changes. As long as they do not depart from the spirit of the present utility model, they are within the protection scope of the present utility model.

Claims

1. A stamping die with a safety protection function, comprising a base (1), a fixed die (2) is fixedly connected to the upper surface of the base (1), a corresponding moving die (3) is arranged above the fixed die (2), a punch (4) is fixedly connected to the lower surface of the moving die (3), a pressure plate is arranged between the fixed die (2) and the moving die (3), and a through hole (5) is arranged on the upper surface of the pressure plate for the punch (4) to pass through, characterized in that, An oil wiping ring (6) is provided on the inner wall of the through hole (5). The pressing plate includes an outer groove plate (7) and an inner groove plate (8) detachably connected to the inner wall of the outer groove plate (7). An oil supply component (9) for supplying lubricating oil to the oil wiping ring (6) is provided on the inner bottom wall of the inner groove plate (8). An infrared temperature sensor (10) is fixedly connected to one side of the moving die (3) to detect the amount of lubricating oil on the surface of the punch (4).

2. The stamping die with a safety protection function as described in claim 1, characterized in that: A sliding rod (11) is fixedly connected to the upper surface of the base (1). A sliding sleeve (12) is slidably connected to the surface of the sliding rod (11). An installation hole is provided on the upper surface of the moving die (3), and the inner wall of the installation hole is fixedly connected to the surface of the sliding sleeve (12). A sliding hole is provided on the upper surface of the moving die (3), and a support rod (14) is slidably connected to the inner wall of the sliding hole. The bottom end of the support rod (14) is fixedly connected to the upper surface of the outer groove plate (7). A telescopic spring (15) is sleeved on the surface of the support rod (14). The top end of the telescopic spring (15) is fixedly connected to the lower surface of the moving die (3), and the bottom end of the telescopic spring (15) is fixedly connected to the upper surface of the outer groove plate (7).

3. The stamping die with a safety protection function according to claim 1, characterized in that: The oil supply component (9) includes an oil storage box (901) for storing oil. An end cover (902) is fixedly connected to the end face of the oil storage box (901). An oil injection hole is provided on the upper surface of the oil storage box (901), and a plug (903) is provided in the oil injection hole. A connecting pipe (904) is fixedly connected to one side of the end cover (902), and the connecting pipe (904) is communicated with the oil wiping ring (6).

4. The stamping die with a safety protection function according to claim 3, characterized in that: The oil wiping ring (6) has a contact surface (16) that fits the punch (4). An oil wiping groove (17) penetrating the contact surface (16) is provided inside the oil wiping ring (6). A reserved pipe (18) communicated with the oil wiping groove (17) is fixedly connected to the surface of the oil wiping ring (6). One end of the reserved pipe (18) is detachably connected to the connecting pipe (904).

5. The stamping die with a safety protection function according to claim 3, characterized in that: A sliding block (19) is slidably connected to the inner wall of the oil storage box (901). A reset spring (20) is fixedly connected to one side of the sliding block (19), and the other end of the reset spring (20) is fixedly connected to the inner wall of the oil storage box (901). A communicating pipe (21) is fixedly connected to one end of the oil storage box (901). A groove (22) is provided on the upper surface of the base (1), and an air supply component (23) for injecting air into the communicating pipe (21) is provided inside the groove (22).

6. The stamping die with a safety protection function according to claim 5, characterized in that: The air supply component (23) includes a piston cylinder (2301) fixedly connected to the inner wall of the groove (22). A moving piston (2302) is slidably connected to the inner wall of the piston cylinder (2301). On one side of the base (1), an intake pipe (2303) and an outlet pipe (2304) which are connected to the piston cylinder (2301) are fixedly connected respectively. An intake one-way valve (2305) is fixedly connected to the surface of the intake pipe (2303), and an outlet one-way valve (2306) is fixedly connected to the surface of the outlet pipe (2304). A movable pipe (2307) is slidably connected to the inner wall of the outlet pipe (2304). The movable pipe (2307) is detachably connected to the connecting pipe (21). An active solenoid valve (2310) is fixedly connected to the surface of the movable pipe (2307). A vent pipe (2308) is fixedly connected to the surface of the movable pipe (2307), and a vent solenoid valve (2309) is fixedly connected to the surface of the vent pipe (2308).

7. The stamping die with a safety protection function according to claim 6, wherein: A threaded lead screw (24) is rotatably connected to the inner wall of the groove (22). An internally threaded block (25) is threadedly connected to the surface of the threaded lead screw (24). A connecting rod (26) is fixedly connected to the lower surface of the internally threaded block (25). One end of the connecting rod (26) is fixedly connected to the moving piston (2302). A rack (27) is fixedly connected to the lower surface of the inner groove plate (8). A driving gear (28) is fixedly connected to the surface of the threaded lead screw (24). The rack (27) meshes with the driving gear (28).

8. The stamping die with a safety protection function according to claim 6, characterized in that: The oiling ring (6) is in a conical shape with a large upper part and a small lower part and an opening at the bottom. The oiling ring (6) has an outer wall (29) capable of cleaning the sludge on the surface of the punch (4). A support ring (30) is fixedly connected to the upper surface of the inner groove plate (8). A guide cover (31) in an umbrella shape with an opening at the top is fixedly connected to the top of the support ring (30).

9. The stamping die with a safety protection function according to claim 6, characterized in that: A ring-shaped boss (32) is formed at the position of the inner top wall of the outer groove plate (7) corresponding to the through hole (5). A driven gear (33) is rotatably connected to the lower surface of the boss (32). A fixing rod (34) is fixedly connected to the inner wall of the driven gear (33). One end of the fixing rod (34) is fixedly connected to a scraping strip (35) that fits against the outer wall (29). A fixing pipe (36) is fixedly connected to the inner top wall of the outer groove plate (7). A driving gear (37) is rotatably connected to the bottom end of the fixing pipe (36), and the driving gear (37) meshes with the driven gear (33). A lightweight hole (38) is formed on the upper surface of the driving gear (37). A rotating blade (39) is fixedly connected to the inner wall of the lightweight hole (38). A branch pipe (40) is fixedly connected to the surface of the movable pipe (2307). One end of the branch pipe (40) penetrates through the inner wall of the outer groove plate (7) and extends into the inner groove plate (8). One end of the branch pipe (40) is fixedly connected to the surface of the fixing pipe (36) and penetrates through the inner wall of the fixing pipe (36). The branch pipe (40) is located above the rotating blade (39). A branch solenoid valve (41) is fixedly connected to the surface of the branch pipe (40). One end of the air release pipe (2308) is fixedly connected to the surface of the branch pipe (40) and penetrates through the inner wall of the branch pipe (40). An air release one-way valve (42) is fixedly connected to the surface of the air release pipe (2308).

10. A stamping die with a safety protection function according to claim 2, characterized in that: A jet ring (43) with air holes at the bottom is fixedly connected to the lower surface of the sliding sleeve (12). A ventilation pipe (44) is fixedly connected between the front jet ring (43) and the rear jet ring (43). A limiting pipe (45) is fixedly connected to the surface of the ventilation pipe (44). An air supply pipe (13) is slidably connected to the inner wall of the limiting pipe (45). The bottom end of the air supply pipe (13) is fixedly connected to the upper surface of the outer groove plate (7) and penetrates through the inner top wall of the outer groove plate (7).

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