Metal part stamping die and stamping process thereof

Abstract

The stamping die comprises a base, a lower die and a supporting frame are arranged on the upper side of the base, a downward pressing mechanism is arranged on the lower side of the supporting frame, a discharging mechanism is arranged on the upper side of the base and located on one side of the lower die, and an upper die is arranged on one side of the discharging mechanism. The upper die is matched with the lower die, a driving mechanism is arranged on one side of the downward pressing mechanism, the driving mechanism is matched with the discharging mechanism, and the downward pressing mechanism is matched with the upper die and the lower die. According to the metal part stamping die, through the arrangement of the discharging mechanism, after stamping is completed, a metal part can be automatically pushed, the metal part is pushed out of the upper die, then automatic discharging of the metal part is achieved, manual discharging of workers is not needed, and the working efficiency is improved. And therefore, the safety of a worker in the stamping process by using the stamping die is effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of metal part stamping, and in particular to a metal part stamping die and a stamping process thereof. Background Art

[0002] A stamping die is a special process equipment for processing metal materials into parts or semi-finished products. It is a processing method that uses pressure to separate or plastically deform metal materials to obtain the required parts. Compared with traditional castings and forgings, stamping parts are thin, light, and uniform. At the same time, stamping can produce workpieces with ribs, undulations, or flanges that are difficult to manufacture by other methods, thereby improving the rigidity of the workpiece. The die used for stamping is called a stamping die.

[0003] In the metal processing industry, stamping technology is a commonly used manufacturing method for mass production of complex-shaped metal parts. Stamping of metal parts is a conventional mechanical processing method. The general process is to stamp the metal parts in the direction of flow through different bending and shaping stations to finally achieve the shape of the finished product.

[0004] However, in the process of stamping work, most of the existing stamping dies still use manual feeding. If a worker or someone else accidentally touches the stamping switch during the feeding process, it is easy to cause injuries to the worker's hands, which poses certain safety hazards. Therefore, it is urgent to design a metal stamping die and its stamping process to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide a metal part stamping die and a stamping process thereof to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A metal stamping die comprises a base, a lower die and a support frame are arranged on the upper side of the base, a pressing mechanism is arranged on the lower side of the support frame, a blanking mechanism is arranged on the upper side of the base, the blanking mechanism is located on one side of the lower die, an upper die is arranged on one side of the blanking mechanism, the upper die cooperates with the lower die, a driving mechanism is arranged on one side of the pressing mechanism, the driving mechanism cooperates with the blanking mechanism, the pressing mechanism cooperates with the upper die and the lower die, the blanking mechanism comprises a guide column, a fixed box, a closing plate and a pushing column, the guide column is fixedly mounted on the upper side of the base, the fixed box is slidably mounted on the upper end of the guide column, and the closing plate is fixedly mounted on the fixed box On one side of the fixed box, the pushing column is slidably installed in the fixed box and the closing plate, one end of the pushing column is fixedly installed with a limiting plate, the limiting plate is slidably arranged in the fixed box, a first spring is arranged between the limiting plate and the closing plate, the first spring is sleeved on the circumference of the pushing column, a connecting plate is fixedly installed on one side of the closing plate, the upper mold is fixedly installed on one side of the connecting plate, a slide is provided on the upper side of the upper mold, a receiving groove is provided on one side of the connecting plate, the receiving groove is connected with the slide, one end of the pushing column is slidably arranged between the connecting plate and the upper mold, a pushing plate is fixedly installed on the upper side of the pushing column, and the pushing plate is slidably arranged in the receiving groove and the slide.

[0008] Preferably, the number of the guide posts is two, and two second springs are arranged between the fixing box and the base, and the two second springs are respectively sleeved around the two guide posts.

[0009] Preferably, the driving mechanism includes a fixed frame, a threaded rod, a threaded barrel, a mounting block and a rotating block, the fixed frame is arranged on one side of the pressing mechanism, the threaded rod is slidably installed between the fixed frames, the threaded barrel is rotatably installed on the upper side of the fixed frame, the threaded barrel is threadedly connected to the threaded rod, the mounting block is fixedly installed on the lower side of the threaded rod, the rotating block is rotatably installed on one side of the mounting block, and a torsion spring is arranged between the rotating block and the mounting block.

[0010] Preferably, a push rod is fixedly installed at one end of the pushing column, a pulley is rotatably installed at one end of the push rod, the rotating block cooperates with the pulley, an inclined surface is arranged on the upper side of one end of the rotating block, a limit block is fixedly installed on one side of the mounting block, and the limit block is located at the lower side of the rotating block.

[0011] Preferably, a guide sleeve is fixedly installed on the lower side of the fixing frame, the guide sleeve is sleeved on the circumference of the threaded rod, a guide groove is opened on one side of the threaded rod, and the guide sleeve is slidably connected to the guide groove.

[0012] Preferably, the pressing mechanism includes a cylinder, a lifting plate and an L-shaped pressing rod, the cylinder is fixedly installed on the upper side of the support frame, the lifting plate is fixedly installed on the output end of the cylinder, a sliding cavity is opened in the lifting plate, a sliding plate is slidably installed in the sliding cavity, a third spring is arranged between the sliding plate and the inner wall of the sliding cavity, and the L-shaped pressing rod is fixedly connected to the sliding plate.

[0013] Preferably, the lifting plate is located at the lower side of the support frame, the fixing frame is fixedly installed on one side of the lifting plate, the L-shaped pressing rod corresponds to the fixing box, and two triangular protrusions are provided on the lower side of the lifting plate, and the triangular protrusions correspond to the lower mold.

[0014] Preferably, the lower mold includes a lower template and a sliding template, the number of the sliding templates is two, the lower template is fixedly mounted on the upper side of the base, the two sliding templates are slidably arranged on the upper side of the lower template, a first arc groove is opened on the upper side of the lower template, a second arc groove is opened on the lower side of one end of the two sliding templates, the second arc groove corresponds to the first arc groove, a triangular groove is opened on the upper side of the sliding template, the triangular groove corresponds to the triangular protrusion, side plates are fixedly mounted on both sides of the lower template, a sliding column is slidably mounted between the side plates, an adjusting nut is threadedly mounted on one end of the sliding column, a fourth spring is arranged between the adjusting nut and the side plate, the other end of the sliding column is fixedly connected to the sliding template, and extension grooves begin to be formed on the upper sides of both ends of the lower template, and the extension grooves correspond to the triangular grooves.

[0015] Preferably, a material discharge trough is provided on the upper side of the two sliding templates, a material discharge port is provided on the upper side of the base, a material discharge port is provided on one side of the base, and the material discharge port is communicated with the material discharge port.

[0016] In addition, a metal part stamping process is also provided, which is applied to the stamping die, and the stamping process includes the following steps:

[0017] S1. Prepare materials: Select the metal sheets to be processed and cut them into appropriate sizes in advance according to product requirements;

[0018] S2. Preheating treatment: preheating the cut metal sheet to improve the ductility of the metal sheet for subsequent stamping;

[0019] S3, stamping and forming: placing the preheated metal sheet on the lower die, starting the lower pressing mechanism to drive the upper die to perform stamping processing on the metal sheet, and stamping and forming the metal part by the cooperation of the upper die and the lower die;

[0020] S4, after the metal part is stamped and formed by the cooperation of the upper mold and the lower mold, the pressing mechanism is started again to raise the pressing mechanism and the upper mold, and the unloading mechanism can automatically unload the metal part when the upper mold rises;

[0021] S5. Inspection and trimming: Perform quality inspection on stamped metal parts to ensure that they meet qualification requirements and perform necessary trimming.

[0022] In the above technical solution, the present invention provides a metal part stamping die and a stamping process thereof, and the beneficial effects are:

[0023] (1) The present invention provides a metal stamping die, which can automatically push the metal part after stamping is completed through the provision of a blanking mechanism, so that the metal part is pushed out of the upper die, thereby realizing automatic blanking of the metal part without the need for manual blanking by the staff, thereby effectively improving the safety of the staff using the stamping die during the stamping process.

[0024] (2) The present invention provides a metal stamping die, which has a feed opening and a discharge opening. When the metal part is pushed out of the upper die, it can fall to the feed opening and then fall out from the discharge opening, thereby automatically and continuously collecting the metal parts after feeding, thereby facilitating the collection and storage of the metal parts after stamping by the staff.

[0025] (3) The metal stamping die provided by the present invention can drive the blanking mechanism to perform blanking operations after the stamping is completed through the provided driving mechanism, and the driving mechanism has a simple structure and low cost, thus having good economy and effectively reducing the production and manufacturing costs of the enterprise. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0027] Figure 1 The present invention provides an overall front structural schematic diagram of a metal part stamping die and a stamping process embodiment thereof.

[0028] Figure 2 The present invention provides a schematic diagram of the overall rear view structure of a metal part stamping die and a stamping process embodiment thereof.

[0029] Figure 3 A schematic diagram of the structure of a lower die and an upper die provided for a metal part stamping die and a stamping process embodiment of the present invention.

[0030] Figure 4 A schematic diagram of the structure of a driving mechanism and a blanking mechanism provided for a metal part stamping die and a stamping process embodiment of the present invention.

[0031] Figure 5 A schematic diagram of the exploded structure of a threaded rod, a guide sleeve and a threaded barrel provided in a metal part stamping die and a stamping process embodiment of the present invention.

[0032] Figure 6 A schematic diagram of the cross-sectional structure of a lifting plate provided in an embodiment of a metal part stamping die and a stamping process thereof of the present invention.

[0033] 1. Base; 2. Support frame; 3. Cylinder; 4. Pressing mechanism; 5. Lower mold; 6. Feeding port; 7. Discharging port; 8. Upper mold; 9. Driving mechanism; 10. Lifting plate; 11. Feeding mechanism; 12. Connecting plate; 14. Triangular protrusion; 15. Guide column; 16. Second spring; 17. Lower mold; 18. Side plate; 19. Sliding column; 20. Sliding mold; 21. Feeding trough; 22. First arc groove; 23. Second arc groove; 24. Triangular groove; 25. Extension groove; 26. Fourth Spring; 28. Adjusting nut; 29. ​​L-shaped downward pressure rod; 30. Fixed box; 31. Closing plate; 32. Push column; 33. Limit plate; 34. First spring; 35. Push plate; 36. Slide; 37. Receiving groove; 38. Fixed frame; 39. Threaded rod; 40. Threaded cylinder; 41. Mounting block; 42. Rotating block; 43. Inclined surface; 44. Limit block; 45. Push rod; 46. Pulley; 47. Guide sleeve; 48. Guide groove; 49. Sliding cavity; 50. Sliding plate; 51. Third spring. DETAILED DESCRIPTION

[0034] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0035] like Figure 1-6As shown, a metal stamping die provided by an embodiment of the present invention comprises a base 1, a lower die 5 and a support frame 2 are arranged on the upper side of the base 1, a pressing mechanism 4 is arranged on the lower side of the support frame 2, a blanking mechanism 11 is arranged on the upper side of the base 1, the blanking mechanism 11 is located on one side of the lower die 5, an upper die 8 is arranged on one side of the blanking mechanism 11, the upper die 8 cooperates with the lower die 5, a driving mechanism 9 is arranged on one side of the pressing mechanism 4, the driving mechanism 9 cooperates with the blanking mechanism 11, the pressing mechanism 4 cooperates with the upper die 8 and the lower die 5, the blanking mechanism 11 comprises a guide column 15, a fixed box 30, a closing plate 31 and a pushing column 32, the guide column 15 is fixedly installed on the upper side of the base 1, and the fixed box 30 is slidably installed on the guide column 15 At the upper end, the closing plate 31 is fixedly mounted on one side of the fixed box 30, the pushing column 32 is slidably mounted in the fixed box 30 and the closing plate 31, one end of the pushing column 32 is fixedly mounted with a limiting plate 33, the limiting plate 33 is slidably arranged in the fixed box 30, a first spring 34 is arranged between the limiting plate 33 and the closing plate 31, the first spring 34 is sleeved on the side of the pushing column 32, a connecting plate 12 is fixedly mounted on one side of the closing plate 31, the upper mold 8 is fixedly mounted on one side of the connecting plate 12, a slideway 36 is provided on the upper side of the upper mold 8, a receiving groove 37 is provided on one side of the connecting plate 12, the receiving groove 37 is connected to the slideway 36, one end of the pushing column 32 is slidably arranged between the connecting plate 12 and the upper mold 8, and a first spring 34 is fixedly mounted on the upper side of the pushing column 32 The push plate 35 is slidably arranged in the storage groove 37 and the slideway 36. The number of the guide columns 15 is two. Two second springs 16 are arranged between the fixed box 30 and the base 1. The two second springs 16 are respectively sleeved on the sides of the two guide columns 15. The driving mechanism 9 includes a fixed frame 38, a threaded rod 39, a threaded cylinder 40, a mounting block 41 and a rotating block 42. The fixed frame 38 is arranged on one side of the pressing mechanism 4. The threaded rod 39 is slidably installed between the fixed frames 38. The threaded cylinder 40 is rotatably installed on the upper side of the fixed frame 38. The threaded cylinder 40 is threadedly connected to the threaded rod 39. The mounting block 41 is fixedly installed on the lower side of the threaded rod 39. The rotating block 42 is rotatably installed on one side of the mounting block 41. The rotating block 42 is connected to the mounting block 41. A torsion spring is arranged between the setting blocks 41, a push rod 45 is fixedly installed at one end of the pushing column 32, a pulley 46 is rotatably installed at one end of the push rod 45, the rotating block 42 cooperates with the pulley 46, an inclined surface 43 is arranged on the upper side of one end of the rotating block 42, a limit block 44 is fixedly installed on one side of the setting block 41, the limit block 44 is located on the lower side of the rotating block 42, a guide sleeve 47 is fixedly installed on the lower side of the fixing frame 38, the guide sleeve 47 is sleeved on the side of the threaded rod 39, a guide groove 48 is opened on one side of the threaded rod 39, the guide sleeve 47 is slidably connected with the guide groove 48, and a discharge trough 21 is provided on the upper side of the two sliding templates 20, a discharge port 6 is opened on the upper side of the base 1, and a discharge port 7 is opened on one side of the base 1, and the discharge port 6 is communicated with the discharge port 7.

[0036] Specifically, in the present embodiment, when stamping the metal sheet, the driving mechanism 9 is driven downward by starting the pressing mechanism 4, and when the rotating block 42 contacts the pulley 46, the rotating block 42 rotates, and when the rotating block 42 moves to the lower side of the pulley 46, the rotating block 42 can be rotated and reset by the elastic force of the torsion spring, and the rotating block 42 can only be rotated to a horizontal state by the action of the limit block 44, and when the rotating block 42 moves to the lower side of the pulley 46, the pressing mechanism 4 presses down the fixed box 30 and the closing plate 31 at the same time, and the fixed box 30 can move along the guide of the guide column 15 under the downward pressure, and the fixed box 30 compresses the second spring 16, and when the fixed box 30 and the closing plate 31 move downward, they can drive the upper The mold 8 moves downward synchronously, so that the upper mold 8 punches the metal sheet on the lower mold 5, and then the upper mold 8 and the lower mold 5 cooperate to punch and form the metal part. After the punching is completed, the metal sheet will be formed into a circle and sleeved on the side of the upper mold 8. Then, by starting the pressing mechanism 4 again, the pressing mechanism 4 rises. When the pressing mechanism 4 rises, the fixed box 30 can rise and reset through the elastic force of the second spring 16, and when the pressing mechanism 4 rises, it can drive the threaded rod 39, the mounting block 41 and the rotating block 42 to move upward through the fixed frame 38. When the rotating block 42 moves to contact with the pulley 46 again, the rotating block 42 will contact with the pulley 46 through the inclined surface 43. Due to the limit of the limit block 44, the rotating block 42 is The lifting can provide a certain extrusion pressure on the pulley 46 through the inclined surface 43, so that the pulley 46 can move against the inclined surface through the upper inclined surface 43, and then the pulley 46 can drive the push rod 45 to move, and the movement of the push rod 45 can drive the limit plate 33 and the pushing column 32 to move, and the limit plate 33 can squeeze the first spring 34 when it moves, and the movement of the pushing column 32 can drive the push plate 35 to move, so that the push plate 35 extends out of the storage groove 37 and pushes the metal parts on the side of the upper mold 8 along the slide 36, so that the metal parts are pushed out of the upper mold 8, thereby realizing automatic unloading of the metal parts, without the need for manual unloading by the staff, effectively improving the safety of the staff during the stamping process, and the metal parts can fall down when they are pushed out of the upper mold 8 The material port 6 is then passed through the inner inclined portion of the material port 6 to allow the metal piece to slide down the material port 6 to the material outlet 7, and then fall out from the inclined surface of the material outlet 7. By arranging a collection box at the lower side of the material outlet 7, the metal pieces can be continuously collected, so that it is convenient for the staff to collect and store the metal pieces after stamping. When the pulley 46 stops contacting with the rotating block 42, the pushing column 32 can be reset by the elastic force of the first spring 34. When the pushing column 32 is reset, it can drive the pushing plate 35 to retract into the receiving groove 37. Among them, by rotating the threaded cylinder 40, the threaded rod 39 can be driven to move up and down, and then the position of the mounting block 41 and the rotating block 42 can be adjusted, so that it is convenient for the staff to debug it. When the threaded cylinder 40 rotates,The guide sleeve 47 and the guide groove 48 can guide and limit the threaded rod 39, so as to prevent the threaded rod 39 from rotating with the threaded barrel 40 and being unable to move linearly.

[0037] The present invention provides a metal stamping die, wherein the pressing mechanism 4 comprises a cylinder 3, a lifting plate 10 and an L-shaped pressing rod 29, the cylinder 3 is fixedly mounted on the upper side of the support frame 2, the lifting plate 10 is fixedly mounted on the output end of the cylinder 3, a sliding cavity 49 is provided in the lifting plate 10, a sliding plate 50 is slidably mounted in the sliding cavity 49, a third spring 51 is provided between the sliding plate 50 and the inner wall of the sliding cavity 49, the L-shaped pressing rod 29 is fixedly connected to the sliding plate 50, the lifting plate 10 is located at the lower side of the support frame 2, a fixed frame 38 is fixedly mounted on one side of the lifting plate 10, the L-shaped pressing rod 29 corresponds to the fixed box 30, two triangular protrusions 14 are provided on the lower side of the lifting plate 10, the triangular protrusions 14 correspond to the lower die 5, the lower die 5 comprises a lower template 17 and a sliding template 20, the number of the sliding templates 20 is two, and the lower die 5 comprises a lower template 17 and a sliding template 20. The template 17 is fixedly installed on the upper side of the base 1, and the two sliding templates 20 are slidably arranged on the upper side of the lower template 17. A first arc groove 22 is opened on the upper side of the lower template 17, and a second arc groove 23 is opened on the lower side of one end of the two sliding templates 20, and the second arc groove 23 corresponds to the first arc groove 22. A triangular groove 24 is opened on the upper side of the sliding template 20, and the triangular groove 24 corresponds to the triangular protrusion 14. Side plates 18 are fixedly installed on both sides of the lower template 17, and sliding columns 19 are slidably installed between the side plates 18. An adjusting nut 28 is threadedly installed on one end of the sliding column 19, and a fourth spring 26 is arranged between the adjusting nut 28 and the side plate 18. The other end of the sliding column 19 is fixedly connected to the sliding template 20, and extension grooves 25 begin to be provided on the upper sides of both ends of the lower template 17, and the extension grooves 25 correspond to the triangular grooves 24.

[0038] In another embodiment provided by the present invention, the lifting plate 10 is driven to move up and down by starting the cylinder 3. The movement of the lifting plate 10 can drive the fixing frame 38 and the L-shaped pressing rod 29 to move up and down, thereby driving the upper mold 8 to perform a stamping operation. At the same time, it can also drive the driving mechanism 9 to drive the unloading mechanism 11 to perform a unloading operation. During stamping, the lifting plate 10 drives the L-shaped pressing rod 29 to descend, so that the L-shaped pressing rod 29 squeezes the fixing box 30 and the closing plate 31 downward. When the closing plate 31 moves downward, it drives the upper mold 8 synchronously through the connecting plate 12. When the upper die 8 moves downward and punches the metal sheet on the lower die 5, the upper die 8 can squeeze the metal sheet so that the metal sheet is bent by the limit of the two sliding templates 20. When the upper die 8 drives the metal sheet to move into the first arc groove 22, the upper die 8 can punch the metal sheet into a U shape. Then, at this time, the lifting plate 10 continues to move downward, which can drive the triangular protrusion 14 to insert into the triangular groove 24. The inclined surface of the triangular protrusion 14 cooperates with the inclined surface of the triangular groove 24, so that the triangular protrusion 14 is inserted into the triangular groove 24. 4, the two sliding templates 20 can be driven to move toward each other, and the two sliding templates 20 can be moved toward each other to punch the U-shaped metal sheet again. At this time, the two sides of the U-shaped metal sheet correspond to the two second arc grooves 23. When the two sliding templates 20 move toward each other, the two sides of the U-shaped metal sheet can be punched and bent into an arc through the second arc grooves 23, and the two ends of the metal sheet can be contacted, so that the metal sheet forms a circular metal part and is sleeved on the side of the upper mold 8. When the fixed box 30 cannot move, the L-shaped lower pressure rod 29 can be used to The movable sliding plate 50 slides along the sliding cavity 49 and squeezes the third spring 51, so that the L-shaped downward pressure rod 29 will not affect the continued descent of the lifting plate 10. The force of the third spring 51 is greater than the force of the second spring 16. After the stamping is completed, the elastic force of the fourth spring 26 can push the sliding column 19 to move, and then the sliding column 19 can drive the sliding template 20 to reset. The extension groove 25 is used to increase the depth of the triangular protrusion 14 inserted into the triangular groove 24, and the discharge groove is used to limit and fix the metal plate to improve the stability of the metal plate after placement.

[0039] In addition, a metal stamping process is provided, which is applied to the stamping die. The stamping process includes the following steps:

[0040] S1. Prepare materials: Select the metal sheets to be processed and cut them into appropriate sizes in advance according to product requirements;

[0041] S2. Preheating treatment: preheating the cut metal sheet to improve the ductility of the metal sheet for subsequent stamping;

[0042] S3, stamping and forming: placing the preheated metal sheet on the lower die 5, starting the lower pressing mechanism 4 to drive the upper die 8 to perform stamping processing on the metal sheet, and the stamping and forming of the metal part is performed by the cooperation of the upper die 8 and the lower die 5;

[0043] S4, take down the metal part, and after the metal part is stamped and formed by the cooperation of the upper mold 8 and the lower mold 5, the pressing mechanism 4 is started again to make it and the upper mold 8 rise, and when the upper mold 8 rises, the unloading mechanism 11 can automatically unload the metal part;

[0044] S5. Inspection and trimming: Perform quality inspection on stamped metal parts to ensure that they meet qualification requirements and perform necessary trimming.

[0045] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A metal stamping die, characterized in that: The invention comprises a base (1), wherein a lower mold (5) and a support frame (2) are arranged on the upper side of the base (1), a pressing mechanism (4) is arranged on the lower side of the support frame (2), a material discharge mechanism (11) is arranged on the upper side of the base (1), the material discharge mechanism (11) is located on one side of the lower mold (5), an upper mold (8) is arranged on one side of the material discharge mechanism (11), the upper mold (8) cooperates with the lower mold (5), a driving mechanism (9) is arranged on one side of the pressing mechanism (4), and the driving mechanism ( 9) cooperates with the material discharging mechanism (11), the pressing mechanism (4) cooperates with the upper mold (8) and the lower mold (5), the material discharging mechanism (11) comprises a guide column (15), a fixed box (30), a closing plate (31) and a pushing column (32), the guide column (15) is fixedly mounted on the upper side of the base (1), the fixed box (30) is slidably mounted on the upper end of the guide column (15), the closing plate (31) is fixedly mounted on one side of the fixed box (30), and the pushing column (32) is The moving column (32) is slidably mounted in the fixed box (30) and the closing plate (31); a limiting plate (33) is fixedly mounted on one end of the pushing column (32); the limiting plate (33) is slidably mounted in the fixed box (30); a first spring (34) is arranged between the limiting plate (33) and the closing plate (31); the first spring (34) is sleeved on the peripheral side of the pushing column (32); a connecting plate (12) is fixedly mounted on one side of the closing plate (31); and the upper mold (8) is fixedly mounted on the upper mold (8). The push column (32) is installed on one side of the connecting plate (12), a slideway (36) is provided on the upper side of the upper mold (8), a receiving groove (37) is provided on one side of the connecting plate (12), the receiving groove (37) is communicated with the slideway (36), one end of the pushing column (32) is slidably arranged between the connecting plate (12) and the upper mold (8), a push plate (35) is fixedly installed on the upper side of the pushing column (32), and the push plate (35) is slidably arranged in the receiving groove (37) and the slideway (36).

2. A metal stamping die according to claim 1, characterized in that: The number of the guide columns (15) is two, and two second springs (16) are arranged between the fixed box (30) and the base (1), and the two second springs (16) are respectively sleeved on the circumference of the two guide columns (15).

3. A metal stamping die according to claim 1, characterized in that: The driving mechanism (9) comprises a fixed frame (38), a threaded rod (39), a threaded barrel (40), a mounting block (41) and a rotating block (42); the fixed frame (38) is arranged on one side of the pressing mechanism (4); the threaded rod (39) is slidably mounted between the fixed frames (38); the threaded barrel (40) is rotatably mounted on the upper side of the fixed frame (38); the threaded barrel (40) is threadedly connected to the threaded rod (39); the mounting block (41) is fixedly mounted on the lower side of the threaded rod (39); the rotating block (42) is rotatably mounted on one side of the mounting block (41); and a torsion spring is arranged between the rotating block (42) and the mounting block (41).

4. A metal stamping die according to claim 3, characterized in that: A push rod (45) is fixedly mounted on one end of the push column (32), a pulley (46) is rotatably mounted on one end of the push rod (45), the rotating block (42) cooperates with the pulley (46), an inclined surface (43) is arranged on the upper side of one end of the rotating block (42), a limit block (44) is fixedly mounted on one side of the mounting block (41), and the limit block (44) is located on the lower side of the rotating block (42).

5. A metal stamping die according to claim 3, characterized in that: A guide sleeve (47) is fixedly mounted on the lower side of the fixing frame (38), the guide sleeve (47) is sleeved on the circumference of the threaded rod (39), a guide groove (48) is provided on one side of the threaded rod (39), and the guide sleeve (47) is slidably connected to the guide groove (48).

6. A metal stamping die according to claim 3, characterized in that: The pressing mechanism (4) comprises a cylinder (3), a lifting plate (10) and an L-shaped pressing rod (29); the cylinder (3) is fixedly mounted on the upper side of the support frame (2); the lifting plate (10) is fixedly mounted on the output end of the cylinder (3); a sliding cavity (49) is provided in the lifting plate (10); a sliding plate (50) is slidably mounted in the sliding cavity (49); a third spring (51) is provided between the sliding plate (50) and the inner wall of the sliding cavity (49); and the L-shaped pressing rod (29) is fixedly connected to the sliding plate (50).

7. A metal stamping die according to claim 6, characterized in that: The lifting plate (10) is located at the lower side of the support frame (2), the fixing frame (38) is fixedly installed on one side of the lifting plate (10), the L-shaped lower pressure rod (29) corresponds to the fixing box (30), and two triangular protrusions (14) are arranged at the lower side of the lifting plate (10), and the triangular protrusions (14) correspond to the lower mold (5).

8. A metal stamping die according to claim 7, characterized in that: The lower mold (5) comprises a lower mold plate (17) and a sliding mold plate (20), the number of the sliding mold plates (20) is two, the lower mold plate (17) is fixedly mounted on the upper side of the base (1), the two sliding mold plates (20) are slidably arranged on the upper side of the lower mold plate (17), the upper side of the lower mold plate (17) is provided with a first arc groove (22), the lower side of one end of the two sliding mold plates (20) is provided with a second arc groove (23), the second arc groove (23) corresponds to the first arc groove (22), the upper side of the sliding mold plate (20) is provided with a triangular groove (24), the The triangular groove (24) corresponds to the triangular protrusion (14), side plates (18) are fixedly installed on both sides of the lower template (17), a sliding column (19) is slidably installed between the side plates (18), an adjusting nut (28) is threadedly installed on one end of the sliding column (19), a fourth spring (26) is arranged between the adjusting nut (28) and the side plate (18), the other end of the sliding column (19) is fixedly connected to the sliding template (20), and extension grooves (25) are formed on the upper sides of both ends of the lower template (17), and the extension grooves (25) correspond to the triangular grooves (24).

9. A metal stamping die according to claim 8, characterized in that: Both sliding templates (20) have material discharge troughs (21) on their upper sides, a material discharge port (6) is provided on the upper side of the base (1), a material discharge port (7) is provided on one side of the base (1), and the material discharge port (6) is communicated with the material discharge port (7).

10. A metal stamping process, applied to the stamping die according to any one of claims 1 to 9, characterized in that: The stamping process comprises the following steps: S1. Prepare materials: Select the metal sheets to be processed and cut them into appropriate sizes in advance according to product requirements; S2. Preheating treatment: preheating the cut metal sheet to improve the ductility of the metal sheet for subsequent stamping; S3, stamping and forming: placing the preheated metal sheet on the lower die (5), starting the lower pressing mechanism (4) to drive the upper die (8) to perform stamping processing on the metal sheet, and stamping and forming the metal part by cooperating with the upper die (8) and the lower die (5); S4, removing the metal part, and after the upper mold (8) and the lower mold (5) cooperate to stamp the metal part, the pressing mechanism (4) is started again to raise it and the upper mold (8), and when the upper mold (8) rises, the unloading mechanism (11) can automatically unload the metal part; S5. Inspection and trimming: Perform quality inspection on stamped metal parts to ensure that they meet qualification requirements and perform necessary trimming.

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