A metal stamping process

Abstract

This invention discloses a metal stamping process, specifically relating to the field of metal stamping technology. The invention involves sliding the upper template into a cavity on the bottom surface of the moving mold base. A telescopic cylinder drives a rotating rod to rotate within the slot, pulling the telescopic cylinder outwards. The telescopic cylinder then pulls a positioning plate through a channel to the top of the cavity. Spring two returns to its elastic state, and the telescopic cylinder pulls the positioning plate downwards into the inner cavity of the cavity. The engagement of the positioning pin and positioning hole increases the tightness of the installation, eliminating the need for bolt disassembly and preventing bolt stripping. Simultaneously, the lower template can be replaced with a suitable shape and size. When the lower template is inserted into the receiving cavity, the tension on the reset rod is removed, and spring three returns to its original deformation. At this point, the tenon engages in the mortise, fixing the lower template to the fixed mold base. This structural design allows stamping to form metal parts of different shapes and sizes, expanding the applicability of stamping and improving stamping efficiency.

Description

Technical Field

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

[0002] Traditional hardware products, also known as "small hardware", refer to five metals: gold, silver, copper, iron, and tin. Hardware in modern society is more extensive, such as edible hardware, daily hardware, hardware tools, hardware components, construction hardware, and security products. Stamping is a pressure processing method that uses a mold installed on a press to apply pressure to the material at room temperature to cause separation or plastic deformation, thereby obtaining the desired parts. Stamping is a commonly used forming method in hardware parts processing.

[0003] After searching, the invention patent with publication number CN111940598B discloses a mold for precision hardware stamping. The third working end of the pressure head module will cut the steel plate located at the gap between the third module and the second module. The fourth working end of the pressure head module will cut the four corners of the steel plate located at the top of the third module after cutting. Then the fifth working end of the pressure head module will press the middle part of the mountain-shaped steel plate located at the top of the third module into the recess in the lower die base. The cylinder pulls the pressure head module away from the steel plate, and the working end of the upper assembly lifts the formed hardware buckle. The pushing mechanism continues to push the steel plate, and the steel plate pushes the hardware buckle out. The mountain-shaped buckle hardware parts are stamped and formed.

[0004] However, in the above solution, only one type of hardware can be stamped, while in actual production, two or more hardware may be stamped. This single stamping equipment cannot meet the needs of various production scenarios. Summary of the Invention

[0005] The object of the present invention is to provide a hardware stamping process, in which the upper template is slid and clamped into the cavity on the bottom surface of the movable mold base, and the telescopic cylinder drives the rotating rod to rotate in the vacant groove, and pulls the telescopic cylinder outward, and the telescopic cylinder drives the clamping plate through the channel and reaches the top of the clamping cavity. The spring two elastically recovers, and the telescopic cylinder drives the clamping plate downward and enters the inner cavity of the clamping cavity. The clamping connection between the positioning column and the positioning hole increases the installation tightness, and there is no need to use bolts for disassembly and assembly, which avoids the bolts from slipping. At the same time, the lower template is replaced with a shape and size that is compatible with it. When the lower template is installed in the accommodating cavity, the tension acting on the reset rod is removed, and the spring three restores the deformation. At this time, the tenon block is clamped into the mortise groove, thereby realizing the fixation of the lower template and the fixed mold base, which is convenient for stamping and forming hardware of different shapes and sizes, and has a wider range of applications to solve the problems mentioned in the above background technology.

[0006] The present invention can be implemented by the following technical solution: A metal stamping process, wherein the specific stamping process includes the following steps:

[0007] Step 1: Insert the bottom of the buffer column into the interior of the fixing sleeve, and rotate the installation sleeve by twisting the block so that the threaded installation sleeve is arranged on the outer surface of the fixing sleeve to complete the installation of the buffer column and the fixing sleeve;

[0008] Step 2: Install the mold cavity in the accommodating cavity of the fixed mold base, and realize the positioning and clamping of the mold cavity through the tenon and mortise;

[0009] Step 3: Slide the upper template into the cavity on the bottom of the movable mold base, move the telescopic clamping piece and pull it upward so that the telescopic clamping piece is accommodated in the clamping cavity, thereby achieving stable installation of the movable mold base and the upper template.

[0010] A further technical improvement of the present invention is that in step 1, the buffer column is first passed through the through hole of the annular sleeve to fix the spring 1 between the annular sleeve and the mounting plate.

[0011] A further technical improvement of the present invention is that in step one, the mounting sleeve is rotated in the annular concave cavity on the surface of the annular sleeve by means of a twisting block, so that the mounting sleeve and the fixing sleeve are threadedly connected together.

[0012] A further technical improvement of the present invention is that in step two, the connecting plate and the tenon block are pulled outward by the reset rod to move toward the inner cavity of the vacant part, and the spring three is squeezed to facilitate the installation of the mold cavity into the accommodating cavity of the fixed mold base.

[0013] A further technical improvement of the present invention is that in step 2, when the lower template is installed in the accommodating cavity, the tension acting on the reset rod is removed, and the spring 3 recovers its deformation, at which time the tenon block is stuck in the mortise.

[0014] A further technical improvement of the present invention is that in step three, the rotating rod is placed parallel to the vacant groove on the upper template, so as to facilitate sliding the upper template into the cavity groove on the bottom surface of the movable mold base.

[0015] A further technical improvement of the present invention is that: in step three, the telescopic cylinder is flipped and driven to drive the rotating rod to rotate in the vacant groove, and the telescopic cylinder is pulled outward, so that the telescopic cylinder and the rotating rod are extended, the spring two is elastically compressed, and the telescopic cylinder drives the card plate through the channel and reaches the top of the card cavity.

[0016] A further technical improvement of the present invention is that when the pulling force on the telescopic cylinder is removed, the second spring elastically recovers, so that the telescopic cylinder drives the positioning plate downward and enters the inner cavity of the card cavity, and the locking connection between the positioning column and the positioning hole increases the installation tightness.

[0017] The present invention also provides a hardware stamping process, including a base plate, a fixed die seat is installed on the top surface of the base plate, a lower template for stamping hardware parts of different sizes is clamped on the top surface of the fixed die seat accommodating cavity, a movable die seat is arranged above the lower template, an upper template used in conjunction with the lower template is clamped on the bottom surface of the movable die seat, and a clamping cavity is provided on the top surface of the movable die seat, and a channel is provided on the end surface of the lower template communicating with the clamping cavity, a telescopic positioning member that is clamped and matched with the clamping cavity is rotatably installed in the vacant groove on the top surface of the upper template, the telescopic positioning member includes a rotating rod, a telescopic cylinder is sleeved on the outside of the T-shaped end of the rotating rod, and a spring 2 is sleeved on the outer surface of the T-shaped end of the rotating rod, the end of the spring 2 is in contact with the bottom end of the inner cavity of the telescopic cylinder and the T-shaped end of the rotating rod, and the outer surface of the telescopic cylinder is provided with a clamping plate that is clamped and matched with the clamping cavity.

[0018] A positioning hole is provided on the bottom surface of the inner cavity of the clamping cavity, and a positioning column is installed on the bottom surface of the clamping plate to be engaged with the positioning hole.

[0019] A mold cavity is provided on the surface of the lower mold plate, a shaping module used in conjunction with the mold cavity is installed on the bottom surface of the upper mold plate, and the cross-section of the upper mold plate is set to a trapezoidal structure. The upper mold plate is slidably engaged with the cavity groove on the bottom surface of the movable mold base.

[0020] There are vacant parts on both side walls of the accommodating cavity on the fixed mold base, and a reset rod is installed inside each of the vacant parts. The extended end of the reset rod is fixedly connected to a connecting plate accommodated inside the vacant part, and a spring three is sleeved on the outer surface of the reset rod. The spring three is located between the connecting plate and the inner wall surface of the vacant part. A tenon block is installed on the outer side surface of the connecting plate, and a mortise groove used in conjunction with the tenon block is provided on the outer wall surface of the lower mold plate.

[0021] The top surface of the substrate is provided with a fixed sleeve on both sides of the fixed mold base, and a buffer column is connected to the inside of each fixed sleeve. The outside of the buffer column is provided with an annular sleeve, and the outer top of the buffer column is connected to the bottom surface of the movable mold base through the mounting plate. The outside of the buffer column is provided with a spring between the annular sleeve and the pressure plate.

[0022] A transverse plate is installed on the top surface of the base plate through four columns, and a hydraulic cylinder for pushing the movable mold base to move is installed on the top surface of the transverse plate.

[0023] An inwardly recessed annular cavity is provided on the outer surface of the annular sleeve, and a mounting sleeve that is locked with the end of the fixed sleeve is rotatably installed inside the annular cavity. The mounting sleeve is threadedly connected to the fixed sleeve, and a twisting block is installed on the outer surface of the mounting sleeve.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. Slide the upper template into the cavity on the bottom surface of the movable mold base, and the telescopic cylinder drives the rotating rod to rotate in the vacant groove, and pulls the telescopic cylinder outward. The telescopic cylinder drives the card plate through the channel and reaches the top of the card cavity. The spring 2 elastically recovers, and the telescopic cylinder drives the card plate downward and enters the inner cavity of the card cavity. The clamping connection between the positioning column and the positioning hole increases the installation tightness, and there is no need to use bolts to disassemble and assemble, which avoids the bolts from slipping. At the same time, the lower template is replaced with a shape and size that is suitable for it. When the lower template is installed in the accommodating cavity, the tension acting on the reset rod is removed, and the spring 3 restores the deformation. At this time, the tenon is stuck in the mortise groove to achieve the fixation of the lower template and the fixed mold base. Through the arrangement of the above structure, the stamping can form hardware of different shapes and sizes, thereby improving the application range of stamping and the efficiency of stamping.

[0026] 2. When the upper template is slid into the cavity on the bottom surface of the movable mold base, the trapezoidal structure design increases the stability of the connection between the upper template and the movable mold base, preventing the upper template from falling during installation;

[0027] 3. By twisting the block, the mounting sleeve is driven to rotate in the annular cavity, so that the mounting sleeve and the fixed sleeve are threaded together, thereby realizing the assembly of the buffer column and the fixed sleeve. The installation is simple and easy to operate, thereby increasing the buffering effect of the movable die base in the stamping movement of the hardware. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] To facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0029] Figure 1 is a process flow chart of the present invention;

[0030] Figure 2 Schematic diagram of the external structure of the present invention;

[0031] Figure 3 For the present invention Figure 2 A partial enlarged view of point A in the middle;

[0032] Figure 4 Schematic diagram of the three-dimensional structure of the card cavity of the present invention;

[0033] Figure 5 For the present invention Figure 2 A partial enlarged view of point B in the middle;

[0034] Figure 6 Schematic diagram of the three-dimensional structure of the annular sleeve of the present invention;

[0035] Figure 7 For the present invention Figure 2 A partial enlarged view of point C in the middle.

[0036] In the figure: 1. Base plate; 2. Fixed mold base; 3. Fixed sleeve; 4. Lower mold plate; 5. Buffer column; 6. Horizontal plate; 7. Moving mold base; 8. Upper mold plate; 9. Forming module; 10. Mold cavity; 11. Spring 1; 12. Rotating rod; 13. Channel; 14. Clamping cavity; 15. Clamping plate; 16. Positioning column; 17. Telescopic cylinder; 18. Spring 2; 19. Positioning hole; 20. Annular sleeve; 21. Mounting sleeve; 22. Twisting block; 23. Annular cavity; 24. Vacant part; 25. Reset rod; 26. Connecting plate; 27. Spring 3; 28. Tenon; 29. ​​Mortise. DETAILED DESCRIPTION

[0037] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the invention, the specific implementation methods, structures, features and effects of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0038] See also Figure 1-Figure 7As shown, the present invention provides a metal stamping process, including a base plate 1, a fixed die seat 2 is installed on the top surface of the base plate 1, a lower template 4 for stamping hardware parts of different sizes is clamped on the top surface of the accommodating cavity of the fixed die seat 2, a movable die seat 7 is provided above the lower template 4, an upper template 8 used in conjunction with the lower template 4 is clamped on the bottom surface of the movable die seat 7, and a clamping cavity 14 is provided on the top surface of the movable die seat 7, a channel 13 communicating with the clamping cavity 14 is provided on the end surface of the lower template 4, and a clamping member 13 for clamping with the clamping cavity 14 is rotatably installed in the vacant groove on the top surface of the upper template 8. The telescopic positioning member includes a rotating rod 12, a telescopic cylinder 17 is sleeved on the outside of the T-shaped end of the rotating rod 12, and a spring 2 18 is sleeved on the outer surface of the T-shaped end of the rotating rod 12. The end of the spring 2 18 contacts the bottom end of the inner cavity of the telescopic cylinder 17 and the T-shaped end of the rotating rod 12. The outer surface of the telescopic cylinder 17 is provided with a positioning plate 15 that is engaged with the card cavity 14; a positioning hole 19 is provided on the bottom surface of the inner cavity of the card cavity 14, and a positioning column 16 that is engaged with the positioning hole 19 is installed on the bottom surface of the positioning plate 15. When the upper template 8 is installed, First, slide the upper template 8 into the cavity on the bottom surface of the movable mold base 7. Due to the trapezoidal structure design, the stability of the upper template 8 and the movable mold base 7 is increased to prevent the upper template 8 from falling during installation. When the upper template 8 is slid into the upper template 8, the rotating rod 12 is parallel to the vacant groove on the upper template 8, which facilitates the sliding of the upper template 8 into the cavity on the bottom surface of the movable mold base 7. Then, flip and toggle the telescopic cylinder 17, and the telescopic cylinder 17 drives the rotating rod 12 to rotate in the vacant groove. Then, pull the telescopic cylinder 17 outward so that the telescopic cylinder 17 and the rotating rod 1 2 extends, the spring 2 18 is elastically compressed, the telescopic cylinder 17 drives the locking plate 15 to pass through the channel 13 and reach the top of the locking cavity 14, and the pulling force on the telescopic cylinder 17 is removed, the spring 2 18 elastically recovers, so that the telescopic cylinder 17 drives the locking plate 15 downward and enters the inner cavity of the locking cavity 14, and the clamping connection between the positioning column 16 and the positioning hole 19 increases the installation tightness, realizing the rapid installation of the upper template 8 and the movable mold base 7, without the need to use bolts for disassembly and assembly, avoiding the occurrence of bolt stripping, and the replaced upper template 8 is suitable for the stamping of hardware of different shapes and sizes.

[0039] A mold cavity 10 is provided on the surface of the lower mold plate 4, and a shaping module 9 for use with the mold cavity 10 is installed on the bottom surface of the upper mold plate 8. The cross-section of the upper mold plate 8 is set to a trapezoidal structure, and the upper mold plate 8 is slidably engaged with the cavity groove on the bottom surface of the movable mold base 7.

[0040] There are vacant parts 24 on both side walls of the accommodating cavity of the fixed mold base 2, and a reset rod 25 is installed inside each vacant part 24. The protruding end of the reset rod 25 is fixedly connected to a connecting plate 26 accommodated in the vacant part 24, and a spring 3 27 is sleeved on the outer surface of the reset rod 25. The spring 3 27 is located between the connecting plate 26 and the inner wall of the vacant part 24. A tenon 28 is installed on the outer surface of the connecting plate 26. A mortise 29 is provided on the outer wall of the lower template 4 for use with the tenon 28. When the upper template 8 is replaced, the lower template 4 is replaced with a shape and size that matches the shape and size, and the reset rod 25 is used to pull the connecting plate 26 and the tenon 28 outward toward the inner cavity of the vacant portion 24, squeezing the spring three 27, so as to facilitate the installation of the mold cavity 10 into the accommodating cavity of the fixed mold base 2. When the lower mold plate 4 is installed into the accommodating cavity, the pulling force acting on the reset rod 25 is removed, and the spring three 27 recovers its deformation. At this time, the tenon 28 is stuck in the mortise 29, thereby achieving the fixation of the lower mold plate 4 and the fixed mold base 2, facilitating the stamping of different hardware parts and expanding the application range of stamping.

[0041] The top surface of the base plate 1 is provided with a fixed sleeve 3 on both sides of the fixed die seat 2, and a buffer column 5 is connected to the inside of each fixed sleeve 3. The outer surface of the buffer column 5 is provided with an annular sleeve 20, and the outer top of the buffer column 5 is connected to the bottom surface of the movable die seat 7 through the mounting plate. The outer surface of the buffer column 5 is provided with a spring 11 between the annular sleeve 20 and the pressure plate; the top surface of the base plate 1 is provided with a horizontal plate 6 through four columns, and the top surface of the horizontal plate 6 is provided with a hydraulic cylinder for pushing the movable die seat 7 to move; the outer surface of the annular sleeve 20 is provided with an inwardly concave annular cavity 23, and the inner surface of the annular cavity 23 is provided with a hydraulic cylinder for pushing the movable die seat 7 to move; The mounting sleeve 21 is rotatably installed with a mounting sleeve 21 that is locked with the end of the fixing sleeve 3. The mounting sleeve 21 is threadedly sleeved with the fixing sleeve 3, and a twisting block 22 is installed on the outer surface of the mounting sleeve 21. First, the buffer column 5 is passed through the through hole of the annular sleeve 20 to fix the spring 11 between the annular sleeve 20 and the mounting plate, and the mounting sleeve 21 is rotated in the annular cavity 23 by twisting the block 22, so that the mounting sleeve 21 is threadedly sleeved with the fixing sleeve 3, thereby realizing the assembly of the buffer column 5 and the fixing sleeve 3. The installation is simple and easy to operate, thereby increasing the buffering of the movable mold base 7 in the stamping movement of the hardware.

[0042] The present invention also provides a metal stamping process, and the specific stamping process includes the following steps:

[0043] Step 1: Insert the bottom of the buffer column 5 into the interior of the fixing sleeve 3, and rotate the installation sleeve 21 by turning the block 22 so that the installation sleeve 21 is threaded onto the outer surface of the fixing sleeve 3 to achieve the installation of the buffer column 5 and the fixing sleeve 3;

[0044] Step 2: Install the lower mold plate 4 in the accommodating cavity of the fixed mold base 2, and realize the positioning and clamping of the mold cavity 10 through the tenon block 28 and the mortise groove 29;

[0045] Step 3: Slide the upper template 8 into the cavity on the bottom of the movable mold base 7, move the telescopic clamping piece and pull it upward so that the telescopic clamping piece is accommodated in the clamping cavity 14, thereby achieving stable installation of the movable mold base 7 and the upper template 8.

[0046] In step 1, first, the buffer column 5 is passed through the through hole of the annular sleeve 20 to fix the spring 11 between the annular sleeve 20 and the mounting plate.

[0047] In step 1, the mounting sleeve 21 is rotated in the annular cavity 23 on the surface of the annular sleeve 20 by turning the screw block 22 , so that the mounting sleeve 21 and the fixing sleeve 3 are threadedly connected together.

[0048] In step 2, the connection plate 26 and the tenon block 28 are pulled outward by the reset rod 25 to move toward the inner cavity of the vacant portion 24 and the spring 3 27 is squeezed to facilitate the installation of the mold cavity 10 into the accommodating cavity of the fixed mold base 2.

[0049] In step 2, when the mold cavity 10 is loaded into the accommodating cavity, the tension acting on the reset rod 25 is removed, and the spring 3 27 recovers its deformation. At this time, the tenon 28 is inserted into the mortise 29.

[0050] In step three, the rotating rod 12 is placed parallel to the vacant groove on the upper mold plate 8 , so as to facilitate sliding the upper mold plate 8 into the cavity groove on the bottom surface of the movable mold base 7 .

[0051] In step three, the telescopic cylinder 17 is flipped and driven to drive the rotating rod 12 to rotate in the vacant slot, and the telescopic cylinder 17 is pulled outward, so that the telescopic cylinder 17 and the rotating rod 12 are extended, the spring 2 18 is elastically compressed, and the telescopic cylinder 17 drives the locking plate 15 to pass through the channel 13 and reach the top of the locking cavity 14.

[0052] In step three, the tension on the telescopic cylinder 17 is removed, and the spring 2 18 elastically recovers, so that the telescopic cylinder 17 drives the locking plate 15 downward and enters the inner cavity of the locking cavity 14, and the locking connection between the positioning column 16 and the positioning hole 19 increases the installation tightness.

[0053] When the present invention is used, the upper template 8 is first slidably installed into the cavity on the bottom surface of the movable mold base 7. Due to the trapezoidal structure design, the stability of the clamping between the upper template 8 and the movable mold base 7 is increased, and the upper template 8 is prevented from falling during installation;

[0054] The upper template 8 is slidably clamped into the cavity groove on the bottom surface of the movable mold base 7, and the telescopic cylinder 17 drives the rotating rod 12 to rotate in the vacant groove and pull the telescopic cylinder 17 outward, and the telescopic cylinder 17 drives the card plate 15 to pass through the channel 13 and reach the top of the card cavity 14. The spring 2 recovers elastically, and the telescopic cylinder 17 drives the card plate 15 downward and enters the inner cavity of the card cavity 14. The card connection between the positioning column 16 and the positioning hole 19 increases the installation tightness, and does not need to use bolts to disassemble and assemble, so as to avoid the bolts from slipping. At the same time, the lower template 4 is changed to a shape and size suitable for it. When the lower template 4 is installed in the accommodating cavity, the tension acting on the reset rod 25 is removed, and the spring 3 27 recovers the deformation. At this time, the tenon 28 is clamped in the mortise groove 29, and the lower template 4 is fixed to the fixed mold base 2. Through the arrangement of the above structure, the stamping can be used to form hardware of different shapes and sizes, thereby improving the applicable range of stamping and improving the efficiency of stamping.

[0055] By turning the block 22 to move the mounting sleeve 21 to rotate in the annular cavity 23, the mounting sleeve 21 and the fixing sleeve 3 are threadedly connected together, thereby realizing the assembly of the buffer column 5 and the fixing sleeve 3. The installation is simple and easy to operate, thereby increasing the buffering effect of the movable mold base 7 during the stamping movement of the hardware.

[0056] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A metal stamping process, characterized in that: The invention comprises a base plate (1), a fixed die seat (2) is installed on the top surface of the base plate (1), a lower die plate (4) for stamping and forming hardware parts of different sizes is clamped on the top surface of the accommodating cavity of the fixed die seat (2), a movable die seat (7) is arranged above the lower die plate (4), an upper die plate (8) used in conjunction with the lower die plate (4) is clamped on the bottom surface of the movable die seat (7), a clamping cavity (14) is provided on the top surface of the movable die seat (7), a channel (13) communicating with the clamping cavity (14) is provided on the end surface of the lower die plate (4), and a telescopic member clamped and matched with the clamping cavity (14) is rotatably installed in a vacant groove on the top surface of the upper die plate (8). The telescopic locking member comprises a rotating rod (12), a telescopic cylinder (17) being sleeved on the outside of the T-shaped end of the rotating rod (12), and a second spring (18) being sleeved on the outer surface of the T-shaped end of the rotating rod (12), the end of the second spring (18) being in contact with the bottom end of the inner cavity of the telescopic cylinder (17) and the T-shaped end of the rotating rod (12), and a locking plate (15) being engaged with the locking cavity (14) being provided on the outer surface of the telescopic cylinder (17); a positioning hole (19) being provided on the bottom surface of the inner cavity of the locking cavity (14), and a positioning column (16) being mounted on the bottom surface of the locking plate (15) being engaged with the positioning hole (19); A mold cavity (10) is provided on the surface of the lower mold plate (4), a shaping module (9) used in conjunction with the mold cavity (10) is installed on the bottom surface of the upper mold plate (8), and the cross-section of the upper mold plate (8) is arranged to be a trapezoidal structure, and the upper mold plate (8) is slidably engaged with the cavity groove on the bottom surface of the movable mold base (7); Both side walls of the upper accommodating cavity of the fixed mold base (2) are provided with a vacant portion (24), a reset rod (25) is installed inside each vacant portion (24), the extending end of the reset rod (25) is fixedly connected to a connecting plate (26) accommodated inside the vacant portion (24), and a spring three (27) is sleeved on the outer surface of the reset rod (25), the spring three (27) is located between the connecting plate (26) and the inner wall surface of the vacant portion (24), a tenon block (28) is installed on the outer surface of the connecting plate (26), and a mortise groove (29) used in conjunction with the tenon block (28) is provided on the outer wall surface of the lower mold plate (4); A fixing sleeve (3) is provided on the top surface of the base plate (1) and on both sides of the fixed die seat (2), a buffer column (5) is connected to the inside of each fixing sleeve (3), an annular sleeve (20) is sleeved on the outside of the buffer column (5), and the top end of the outside of the buffer column (5) is connected to the bottom surface of the movable die seat (7) through a mounting plate, and a spring (11) is sleeved on the outside of the buffer column (5) and between the annular sleeve (20) and the pressure plate; A transverse plate (6) is mounted on the top surface of the base plate (1) via four columns, and a hydraulic cylinder for driving the movable mold base (7) to move is mounted on the top surface of the transverse plate (6); An inwardly recessed annular cavity (23) is provided on the outer surface of the annular sleeve (20); a mounting sleeve (21) locked with the end of the fixing sleeve (3) is rotatably mounted inside the annular cavity (23); the mounting sleeve (21) is threadedly sleeved with the fixing sleeve (3), and a twisting block (22) is mounted on the outer surface of the mounting sleeve (21); The specific stamping process includes the following steps: Step 1: insert the bottom of the buffer column (5) into the interior of the fixing sleeve (3), and rotate the installation sleeve (21) by turning the screw block (22) so that the installation sleeve (21) is threadedly sleeved on the outer surface of the fixing sleeve (3), thereby achieving installation of the buffer column (5) and the fixing sleeve (3); Step 2: Install the mold cavity (10) in the accommodating cavity of the fixed mold base (2), and realize the positioning and clamping of the mold cavity (10) through the tenon block (28) and the mortise groove (29); Step 3: Slide the upper template (8) into the cavity groove on the bottom surface of the movable mold base (7), move the telescopic locking member and pull it upward so that the telescopic locking member is accommodated in the locking cavity (14), thereby achieving stable installation of the movable mold base (7) and the upper template (8).

2. A metal stamping process according to claim 1, characterized in that: In step one, the buffer column (5) is first passed through the through hole of the annular sleeve (20) to fix the spring one (11) between the annular sleeve (20) and the mounting plate.

3. A metal stamping process according to claim 2, characterized in that: In step one, the installation sleeve (21) is rotated in the annular cavity (23) on the surface of the annular sleeve (20) by means of a twisting block (22), so that the installation sleeve (21) and the fixing sleeve (3) are threadedly connected together.

4. A metal stamping process according to claim 1, characterized in that: In step two, the connection plate (26) and the tenon block (28) are pulled outwardly by the reset rod (25) to move toward the inner cavity of the vacant portion (24), and the spring three (27) is compressed to facilitate the installation of the mold cavity (10) into the accommodating cavity of the fixed mold base (2).

5. A metal stamping process according to claim 4, characterized in that: In step two, the lower template (4) is installed into the accommodating cavity, the tension acting on the reset rod (25) is removed, the spring three (27) recovers its deformation, and the tenon block (28) is then inserted into the mortise groove (29).

6. A metal stamping process according to claim 1, characterized in that: In step three, the rotating rod (12) is placed parallel to the vacant groove on the upper mold plate (8), so as to facilitate sliding the upper mold plate (8) into the cavity groove on the bottom surface of the movable mold base (7).

7. A metal stamping process according to claim 6, characterized in that: In step three, the telescopic cylinder (17) is flipped and driven to drive the rotating rod (12) to rotate in the vacant groove, and the telescopic cylinder (17) is pulled outward, so that the telescopic cylinder (17) and the rotating rod (12) are extended, the spring (18) is elastically compressed, and the telescopic cylinder (17) drives the locking plate (15) to pass through the channel (13) and reach the top of the locking cavity (14).

8. A metal stamping process according to claim 7, characterized in that: When the pulling force on the telescopic cylinder (17) is removed, the second spring (18) elastically recovers, so that the telescopic cylinder (17) drives the locking plate (15) downward and enters the inner cavity of the locking cavity (14), and the locking connection between the positioning column (16) and the positioning hole (19) increases the installation tightness.

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