Stamping die for intelligent manufacturing of server case shell

By designing a fully automatic positioning and closed-loop lubrication system in the stamping mold, the positioning misalignment problems caused by environmental light pollution and material texture interference in the prior art are solved, and the effect of high-precision positioning and reducing friction losses is achieved.

CN120169930AInactive Publication Date: 2025-06-20KUNSHAN KAIMISHUO PRECISION MACHINERY CO LTD
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Patent Information

Application Number
CN202510516672.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-04-23
Publication Date
2025-06-20
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

During the use of existing stamping molds, due to environmental light pollution, lens oil pollution or material texture interference, resulting in misalignment, affecting processing quality.

Method used

A stamping mold including frame and positioning components is designed. Through the mechanical linkage of the transmission wheel set, rack and positioning plate, the fully automatic positioning of the material is realized, and the closed-loop lubrication system of the oil storage tank, oil pumping pipe and filter frame is used during the stamping process to reduce friction and remove debris.

Benefits of technology

High-precision automatic positioning of materials is achieved, and the problem of positioning misalignment is avoided. Through lubrication and debris removal, friction losses between the device and the material are reduced, and the stability of the stamping process and product quality are improved.

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Abstract

The invention discloses a stamping die for intelligent manufacturing of a server case shell, and relates to the technical field of intelligent manufacturing, the stamping die comprises a frame and positioning assemblies, the positioning assemblies are arranged on the periphery of the frame, each positioning assembly comprises a transmission wheel set, the transmission wheel sets are symmetrically arranged on the periphery of the frame, and one end of each transmission wheel set is connected with a driving wheel; a synchronous wheel is arranged at the other end of the transmission wheel set, a rack is arranged on one side of the synchronous wheel, a positioning plate is connected to one side of the rack, and limiting plates are symmetrically arranged on the two sides of the positioning plate. During use, after materials are well placed, the materials can be automatically positioned through a mechanical structure, positioning deviation caused by camera pollution or light and other problems in vision-assisted positioning is avoided, in the punching process, the materials can be subjected to scrap removal and lubrication, and the production efficiency is improved. And excessive abrasion of the device and the materials caused by chip blockage or excessive friction is avoided, and after punching is completed, the materials can be jacked up to facilitate discharging.
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Description

Technical Field

[0001] The present invention relates to the technical field of intelligent manufacturing, and specifically relates to a stamping die for intelligent manufacturing of a server chassis shell. Background Technique

[0002] Intelligent manufacturing is a production mode that deeply integrates advanced information technology and manufacturing technology, aiming to achieve full-process automation, flexibility, data-driven, and intelligent decision-making in production. With the development of technology, traditional server chassis manufacturing processes have gradually been replaced by intelligent manufacturing systems. In the production process of server chassis shells, stamping is a very important link, and stamping dies are essential process equipment in the stamping process.

[0003] When existing stamping dies are in use, most of them use visual positioning assistance technology to position and correct the deviation of the placed materials, avoiding processing errors or damage to the die caused by material deviation during stamping. However, during long-term use, factors such as oil stains and metal dust in the workshop adhering to the lens or uneven illumination will increase image noise. Moreover, during illumination, the reflection and wire drawing texture of the sheet will interfere with the detection algorithm, misidentifying the material pattern as deviation, thereby resulting in inaccurate positioning. Summary of the Invention

[0004] The purpose of the present invention is to provide a stamping die for intelligent manufacturing of a server chassis shell to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A stamping die for intelligent manufacturing of a server chassis shell includes a frame and a positioning component. The positioning component is arranged around the frame. The positioning component includes a transmission wheel group. The transmission wheel group is symmetrically arranged around the frame, and one end of the transmission wheel group is connected to a driving wheel. The other end of the transmission wheel group is provided with a synchronous wheel, and a rack is arranged on one side of the synchronous wheel. One side of the rack is connected to a positioning plate, and limiting plates are symmetrically arranged on both sides of the positioning plate. One side of the frame is connected to a hydraulic rod, and one end of the hydraulic rod is connected to a pressing plate. Tooth rods are symmetrically connected around the pressing plate.

[0006] Further, the transmission wheel group is evenly distributed in a circumferential manner around the frame. The driving wheel and the synchronous wheel are respectively meshed with the tooth rod and the rack. The limiting plates are fixed on the frame, and the positioning plate is slidably connected to the frame through the limiting plates.

[0007] Further, communication ports are symmetrically opened on the surface of the pressing plate, and sleeves are symmetrically arranged around the pressing plate. A pressing die is arranged below the pressing plate, and a communication cavity is arranged on the upper part of the pressing die. Oil outlet ports are symmetrically opened on the inner wall around the pressing die, and the oil outlet ports are communicated with the sleeves through the communication cavity and the communication ports.

[0008] Further, the other side of the frame is connected with a bottom mold, and an oil storage tank is arranged on the surface of the bottom mold. Oil pumping grooves are arranged at the four corners of the bottom mold, and an oil pumping pipe is connected to one side of each oil pumping groove. The top mold is connected around the bottom mold.

[0009] Further, the oil storage tanks are evenly distributed in a circumferential manner around the bottom mold, and the oil pumping pipes are communicated with the oil storage tanks through the oil pumping grooves. The oil pumping pipes are sleeved inside the sleeve pipes, and one-way valves are arranged inside both the oil pumping pipes and the sleeve pipes.

[0010] Further, an oil cavity is formed in the lower part of the bottom mold, and an oil inlet groove is arranged between the oil cavity and the oil storage tank of the bottom mold. An oil storage chamber is formed in the upper part of the bottom mold, and an oil through groove is arranged between the oil cavity and the oil storage chamber of the bottom mold. Oil outlet holes are formed around the oil storage chamber of the bottom mold. One-way valves are arranged inside both the oil inlet groove and the oil through groove.

[0011] Further, buffer grooves are formed on the surface of the bottom mold, and buffer springs are arranged inside the buffer grooves. One end of each buffer spring is connected with a plug column, and the other end of the plug column is connected with a backing plate. A pressure sensor is arranged in the center of the backing plate.

[0012] Further, the buffer grooves are communicated with the oil cavity, and the plug columns are elastically connected with the buffer grooves through the buffer springs. The plug columns are slidably connected with the bottom mold through the buffer grooves, and the pressure sensor controls the operation of the hydraulic rod.

[0013] Further, support springs are symmetrically connected inside the oil storage tanks, and the other ends of the support springs are connected with sliding molds. Clamping frames are symmetrically connected around the sliding molds, and filter frames are slidably connected inside the clamping frames. The sliding molds are elastically connected with the bottom mold through the support springs.

[0014] Further, a sleeve is arranged inside the support springs, and a sliding cylinder is sleeved inside the sleeve. Chip suction grooves are arranged on the surface of the sliding mold, and a transfer chamber is formed inside the sliding mold. The transfer chamber is communicated with the oil storage tank through the sliding cylinder and the sleeve, and two one-way valves are arranged inside the transfer chamber, one on the upper side and the other on the lower side.

[0015] The present invention provides a stamping die for intelligent manufacturing of a server chassis shell, which has the following beneficial effects: during use, after the material is placed, the mechanical structure can automatically position the material, avoiding the positioning deviation caused by problems such as camera pollution or light in visual auxiliary positioning. During the stamping process, the material can be debrided and lubricated, avoiding excessive wear of the device and the material caused by chip blockage or excessive friction. After stamping is completed, the material can also be lifted to facilitate unloading.

[0016] 1. Through the mechanical linkage design of the transmission pulley set, rack, and positioning plate, the present invention realizes the full-automatic positioning of materials. The four groups of transmission pulley sets are meshed with the rack and toothed rod through precision gears (drive wheels, synchronous wheels). The hydraulic rod drives the toothed rod to generate a linear thrust, driving the positioning plate to move synchronously along the limiting plate track. The positioning stroke has a high repeat accuracy, stably controls positioning mis-touching, and avoids the positioning inaccuracy problems caused by environmental light pollution, lens oil stains, or material texture interference in visual positioning.

[0017] 2. During stamping, the oil in the oil storage tank passes through the precise cooperation of the oil extraction pipe and the sleeve. When the pressure plate descends, oil pressure is generated, and it is atomized and sprayed onto the material and the device surface through the oil outlet to form a uniform oil film, reducing the friction coefficient and the friction loss between the device and the material.

[0018] 3. The present invention uses a pressure sensor to monitor the stamping pressure in real time. Combining the hydraulic buffering mechanism of the buffer spring and the oil cavity, it dynamically adjusts the pressure output of the hydraulic rod to avoid overload impact, ensure the stability of the stamping process, reduce the risk of die damage. At the same time, it integrates a closed-loop lubrication system of the oil storage tank, oil extraction pipe, and filter frame. The sliding die is linked with the chip suction groove. The chips generated during stamping flow into the chip suction groove with the oil. Through the Venturi effect, the chips are sucked into the transfer chamber, and then squeezed into the filter frame with the oil for filtration. The clean oil flows back to the system through the oil storage chamber, adsorbing stamping chips in real time and filtering and recycling the oil through the filter frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a half-sectional three-dimensional structure schematic diagram of a stamping die for intelligent manufacturing of a server chassis shell according to the present invention;

[0020] Figure 2 is a sectional three-dimensional exploded structure schematic diagram of the positioning component of a stamping die for intelligent manufacturing of a server chassis shell according to the present invention;

[0021] Figure 3 is a quarter-sectional three-dimensional exploded structure schematic diagram of the pressure die of a stamping die for intelligent manufacturing of a server chassis shell according to the present invention;

[0022] Figure 4 is a three-dimensional structure schematic diagram of the overall stamping die for intelligent manufacturing of a server chassis shell according to the present invention;

[0023] Figure 5 is a quarter-sectional three-dimensional structure schematic diagram of a stamping die for intelligent manufacturing of a server chassis shell according to the present invention;

[0024] Figure 6 is a sectional three-dimensional exploded structure schematic diagram of the bottom die of a stamping die for intelligent manufacturing of a server chassis shell according to the present invention.

[0025] In the figure: 1. Frame; 2. Positioning component; 201. Transmission pulley group; 202. Driving wheel; 203. Synchronous wheel; 204. Rack; 205. Positioning plate; 206. Limiting plate; 207. Hydraulic rod; 208. Pressing plate; 209. Rack bar; 3. Communication port; 4. Sleeve; 5. Pressing die; 6. Communication cavity; 7. Oil outlet; 8. Bottom die; 9. Oil storage tank; 10. Oil pumping groove; 11. Oil pumping pipe; 12. Top die; 13. Oil cavity; 14. Oil inlet groove; 15. Oil storage chamber; 16. Oil passage groove; 17. Oil outlet hole; 18. Buffer groove; 19. Buffer spring; 20. Plug column; 21. Base plate; 22. Pressure sensor; 23. Support spring; 24. Sliding die; 25. Clamping frame; 26. Filter frame; 27. Sleeve; 28. Sliding cylinder; 29. Chip suction groove; 30. Transfer chamber. Detailed implementation mode

[0026] Please refer to Figures 1 to 6 , the present invention provides a technical solution: a stamping die for intelligent manufacturing of a server chassis shell, including a frame 1 and a positioning component 2. The positioning component 2 is arranged around the frame 1. The positioning component 2 includes a transmission pulley group 201. The transmission pulley groups 201 are symmetrically arranged around the frame 1. One end of the transmission pulley group 201 is connected with a driving wheel 202, and the other end of the transmission pulley group 201 is provided with a synchronous wheel 203. A rack 204 is arranged on one side of the synchronous wheel 203. One side of the rack 204 is connected with a positioning plate 205, and limiting plates 206 are symmetrically arranged on both sides of the positioning plate 205. One side of the frame 1 is connected with a hydraulic rod 207, and one end of the hydraulic rod 207 is connected with a pressing plate 208. Rack bars 209 are symmetrically connected around the pressing plate 208.

[0027] Please refer to Figures 1 to 6 , the transmission pulley groups 201 are evenly distributed in a circumferential manner around the frame 1. The driving wheel 202 and the synchronous wheel 203 are respectively meshed with the rack bar 209 and the rack 204. The limiting plates 206 are fixed on the frame 1, and the positioning plate 205 is slidably connected with the frame 1 through the limiting plates 206. Communication ports 3 are symmetrically opened on the surface of the pressing plate 208, and sleeves 4 are symmetrically arranged around the pressing plate 208. A pressing die 5 is arranged below the pressing plate 208, and a communication cavity 6 is arranged on the upper part of the pressing die 5. Oil outlets 7 are symmetrically opened on the inner wall around the pressing die 5, and the oil outlets 7 are communicated with the sleeves 4 through the communication cavity 6 and the communication ports 3. Another side of the frame 1 is connected with a bottom die 8, and an oil storage tank 9 is arranged on the surface of the bottom die 8. Oil pumping grooves 10 are arranged at the four corners of the bottom die 8, and an oil pumping pipe 11 is connected to one side of the oil pumping groove 10. A top die 12 is connected around the bottom die 8. The oil storage tanks 9 are evenly distributed in a circumferential manner around the bottom die 8, and the oil pumping pipes 11 are communicated with the oil storage tanks 9 through the oil pumping grooves 10. The oil pumping pipes 11 are sleeved inside the sleeves 4, and one-way valves are arranged in both the oil pumping pipes 11 and the sleeves 4;

[0028] The specific operation is as follows. Through the mechanical linkage design of the drive pulley set 201, the rack 204, and the positioning plate 205, the full-automatic positioning of the material is realized. The four drive pulley sets 201 are engaged with the rack 204 and the toothed rod 209 through the precision gear drive wheel 202 and the synchronous pulley 203. The hydraulic rod 207 drives the toothed rod 209 to generate a linear thrust, driving the positioning plate 205 to move synchronously along the track of the limiting plate 206. The positioning stroke has a high repeat accuracy, stably controls the positioning mis-touch, and avoids the positioning inaccuracy problem caused by environmental light pollution, lens oil stain, or material texture interference in visual positioning. During stamping, the oil in the oil storage tank 9 passes through the precise fit of the oil suction pipe 11 and the sleeve 4, generates oil pressure when the pressing plate 208 descends, and is atomized and sprayed onto the surface of the material and the device through the oil outlet 7 to form a uniform oil film, reducing the friction coefficient and the friction loss between the device and the material.

[0029] Please refer to Figure 1 and Figures 4 to 6 , an oil cavity 13 is opened at the lower part of the bottom die 8, and an oil inlet groove 14 is provided between the oil cavity 13 and the oil storage tank 9 of the bottom die 8. An oil storage chamber 15 is opened at the upper part of the bottom die 8, and an oil through groove 16 is provided between the oil cavity 13 and the oil storage chamber 15 of the bottom die 8. Oil outlet holes 17 are opened around the oil storage chamber 15 of the bottom die 8. Check valves are arranged in both the oil inlet groove 14 and the oil through groove 16. A buffer groove 18 is opened on the surface of the bottom die 8, and a buffer spring 19 is arranged in the buffer groove 18. One end of the buffer spring 19 is connected with a plug column 20, and the other end of the plug column 20 is connected with a backing plate 21. A pressure sensor 22 is arranged in the center of the backing plate 21. The buffer groove 18 is communicated with the oil cavity 13, and the plug column 20 is elastically connected with the buffer groove 18 through the buffer spring 19. The plug column 20 is slidably connected with the bottom die 8 through the buffer groove 18. The pressure sensor 22 controls the operation of the hydraulic rod 207. Support springs 23 are symmetrically connected in the oil storage tank 9, and the other ends of the support springs 23 are connected with a sliding die 24. Clamping frames 25 are symmetrically connected around the sliding die 24, and a filter frame 26 is slidably connected inside the clamping frames 25. The sliding die 24 is elastically connected with the bottom die 8 through the support spring 23. A sleeve 27 is arranged inside the support spring 23, and a sliding cylinder 28 is sleeved inside the sleeve 27. A chip suction groove 29 is arranged on the surface of the sliding die 24, and a transfer chamber 30 is opened inside the sliding die 24. The transfer chamber 30 is communicated with the oil storage tank 9 through the sliding cylinder 28 and the sleeve 27, and two check valves are arranged up and down inside the transfer chamber 30;

[0030] The specific operations are as follows. The punching pressure is monitored in real time through the pressure sensor 22. Combining the hydraulic buffering mechanism of the buffer spring 19 and the oil chamber 13, the pressure output of the hydraulic rod 207 is dynamically adjusted to avoid overload impact, ensure the stability of the punching process, and reduce the risk of die damage. At the same time, a closed-loop lubrication system integrating the oil storage tank 9, the oil suction pipe 11 and the filter frame 26 is provided. The sliding die 24 is linked with the chip suction groove 29. The chips generated by punching flow into the chip suction groove 29 along with the oil. The chips are sucked into the transfer chamber 30 through the Venturi effect and are squeezed into the filter frame 26 along with the oil for filtration. The clean oil flows back to the system through the oil storage chamber 15, adsorbing the punching chips in real time and filtering and recycling the oil through the filter frame 26.

[0031] In summary, for this stamping die used in the intelligent manufacturing of the server chassis shell, during use, first, according to the model of the server chassis shell to be manufactured, the robotic arm is installed to place and fix the corresponding stamping die 5 at the processing point. The loading and unloading robotic arm then places the material on the backing plate 21. After the pressure sensor 22 senses that the material is stable on the backing plate 21, it controls the hydraulic rod 207 to drive the pressure plate 208 to descend. The toothed rod 209 follows the pressure plate 208 to descend together and drives the driving wheel 202 to rotate automatically through the meshing relationship with the driving wheel 202. Thus, the transmission pulley set 201 drives the synchronous pulley 203 to rotate, causing the synchronous pulley 203 to drive the positioning plate 205 to move towards the bottom die 8 through the rack 204. Since the positioning components 2 are evenly distributed in a circular pattern on the frame 1, the positioning plate 205 moves synchronously and equidistantly around the material, thereby pushing the offset material placed on the backing plate 21 and then positioning it.

[0032] After the positioning of the material is completed, as the pressure plate 208 continues to descend, the toothed rod 209 disengages from the driving wheel 202, and the positioning plate 205 no longer exerts force on the material. The pressure plate 208 can then drive the punching die 5 to cooperate with the top die 12 to punch the material. During the descent of the pressure plate 208, as the oil suction pipe 11 moves within the sleeve 4, the oil in the sleeve 4 can be squeezed into the communication cavity 6, and then the oil in the communication cavity 6 is sprayed onto the surface of the material from the oil outlet 7 during punching and stamping, reducing the friction between the device and the material and flushing away the chips at the punching position. As the pressure plate 208 continues to descend, the cut waste remains on the top die 12, and the loading and unloading robotic arm takes it out.

[0033] As the punching die 5 descends with the pressure plate 208, it presses the material tightly on the backing plate 21 and presses the plug column 20 to move downward in the buffer groove 18, while compressing the buffer spring 19 at the same time. The air in the buffer groove 18 is squeezed into the oil chamber 13, and the oil in the oil chamber 13 is squeezed into the oil storage chamber 15 from the oil passage groove 16 and then sprayed onto the space between the sliding die 24 and the bottom die 8 from the oil outlet hole 17 for lubrication. After the backing plate 21 is pressed tightly on the bottom die 8, the punching die 5 continues to descend, and then it can cooperate with the bottom die 8 to punch the material and exert force on the sliding die 24, causing it to descend and compress the support spring 23.

[0034] When the sliding die 24 descends, the oil in the oil storage tank 9 can be pumped into the transfer chamber 30 through the sleeve 27 and the sliding cylinder 28, so that the oil carries the debris in the transfer chamber 30 to leave the transfer chamber 30 and enter the filter frame 26. After the filter frame 26 filters out the debris in the oil, the clean oil drips into the oil storage tank 9 for recycling;

[0035] After stamping is completed, when the pressure sensor 22 detects that the pressure reaches the threshold value, it controls the hydraulic rod 207 to drive the pressing die 5 to rise through the bottom plate. Then the backing plate 21 and the sliding die 24 can rise under the action of the buffer spring 19 and the support spring 23 respectively to lift the material. During the rising process of the pressing plate 208 and the backing plate 21, the plug 20 can pump the air in the oil cavity 13 into the buffer groove 18, and the sleeve 27 can also pump the air in the oil suction pipe 11, so that the oil in the oil storage tank 9 can enter the oil cavity 13 and the sleeve 4 respectively through the oil inlet groove 14, the oil suction groove 10 and the oil suction pipe 11 for oil replenishment;

[0036] Meanwhile, as the sliding die 24 rises, the outside air is inhaled into the transfer chamber 30 through the chip suction groove 29, so that the oil and debris sliding from the material are inhaled into the transfer chamber 30 from the chip suction groove 29 for oil recovery and debris collection, avoiding debris remaining on the surface of the material or causing blockage to the device. The oil between the sliding die 24 and the bottom die 8 can lubricate the material to assist in demolding the material, avoiding wear caused by excessive friction between the material and the device. Moreover, the oil on the side wall of the bottom die 8 can flow back along the side wall and also flow back into the oil storage tank 9 for recovery;

[0037] After the hydraulic rod 207 drives the pressing plate 208 to return to its original position completely, the pressure sensor 22 detects that the pressure is stable and equal to the gravity of the material after punching, and controls the loading and unloading robotic arm to perform loading and unloading again.

[0038] It should be noted that in this article, the term "including", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0039] In this article, specific examples are used to illustrate the principles and implementation methods of the present invention. The description of the above examples is only for helping to understand the method and its core idea of the present invention. The above is only the preferred implementation mode of the present invention. It should be noted that due to the limited nature of literal expression and objectively infinite specific structures, for those of ordinary skill in the art, without departing from the principles of the present invention, several improvements, refinements or changes can be made, or the above technical features can be combined in an appropriate manner; these improvements, refinements, changes or combinations, or directly applying the concept and technical solution of the invention to other occasions without improvement, shall all be regarded as the protection scope of the present invention.

Claims

1. A stamping die for intelligent manufacturing of server chassis shell, characterized in that: The invention comprises a frame (1) and a positioning assembly (2), wherein the frame (1) is provided with the positioning assembly (2) around its periphery, wherein the positioning assembly (2) comprises a transmission wheel group (201), wherein the transmission wheel group (201) is symmetrically provided around its periphery, wherein one end of the transmission wheel group (201) is connected to a driving wheel (202), wherein the other end of the transmission wheel group (201) is provided with a synchronous wheel (203), wherein one side of the synchronous wheel (203) is provided with a rack (204), wherein one side of the rack (204) is connected to a positioning plate (205), and limit plates (206) are symmetrically provided on both sides of the positioning plate (205), wherein one side of the frame (1) is connected to a hydraulic rod (207), wherein one end of the hydraulic rod (207) is connected to a pressure plate (208), and wherein the pressure plate (208) is symmetrically connected to a gear rod (209) around its periphery.

2. A stamping die for intelligent manufacturing of a server chassis shell according to claim 1, characterized in that: The transmission wheel set (201) is distributed in an equidistant circle with respect to the frame (1); the driving wheel (202) and the synchronous wheel (203) are respectively meshed with the gear rod (209) and the rack (204); the limiting plate (206) is fixed on the frame (1); and the positioning plate (205) is slidably connected to the frame (1) via the limiting plate (206).

3. A stamping die for intelligent manufacturing of a server chassis shell according to claim 1, characterized in that: The surface of the pressure plate (208) is symmetrically provided with connecting openings (3), and the pressure plate (208) is symmetrically provided with sleeves (4) around it. A pressing die (5) is provided below the pressure plate (208), and a connecting cavity (6) is provided on the upper part of the pressing die (5). The inner wall of the pressing die (5) is symmetrically provided with oil outlets (7), and the oil outlets (7) are connected with the sleeves (4) through the connecting cavity (6) and the connecting openings (3).

4. A stamping die for intelligent manufacturing of a server chassis shell according to claim 3, characterized in that: The other side of the frame (1) is connected to a bottom mold (8), and an oil storage tank (9) is arranged on the surface of the bottom mold (8). Four corners of the bottom mold (8) are provided with oil extraction grooves (10), and one side of the oil extraction groove (10) is connected to an oil extraction pipe (11). The bottom mold (8) is connected to a top mold (12) around its periphery.

5. A stamping die for intelligent manufacturing of a server chassis shell according to claim 4, characterized in that: The oil storage tanks (9) are equidistantly distributed around the bottom mold (8), and the oil extraction pipe (11) is connected to the oil storage tank (9) through the oil extraction groove (10). The oil extraction pipe (11) is sleeved on the inner side of the casing (4), and both the oil extraction pipe (11) and the casing (4) are provided with one-way valves.

6. A stamping die for intelligent manufacturing of a server chassis shell according to claim 4, characterized in that: An oil cavity (13) is provided at the bottom of the bottom mold (8), and an oil inlet groove (14) is provided between the oil cavity (13) and the oil storage tank (9). An oil storage chamber (15) is provided at the top of the bottom mold (8), and an oil through groove (16) is provided between the oil cavity (13) and the oil storage chamber (15). The bottom mold (8) is provided with oil outlet holes (17) around the oil storage chamber (15), and both the oil inlet groove (14) and the oil through groove (16) are provided with one-way valves.

7. A stamping die for intelligent manufacturing of a server chassis shell according to claim 4, characterized in that: A buffer groove (18) is provided on the surface of the bottom mold (8), and a buffer spring (19) is arranged in the buffer groove (18); one end of the buffer spring (19) is connected to a plug rod (20), and the other end of the plug rod (20) is connected to a pad (21); a pressure sensor (22) is arranged in the center of the pad (21).

8. The stamping die for intelligent manufacturing of a server chassis shell according to claim 7, characterized in that: The buffer groove (18) is communicated with the oil chamber (13), and the plug rod (20) is elastically connected to the buffer groove (18) via a buffer spring (19). The plug rod (20) is slidably connected to the bottom mold (8) via the buffer groove (18), and the pressure sensor (22) controls the operation of the hydraulic rod (207).

9. A stamping die for intelligent manufacturing of a server chassis shell according to claim 4, characterized in that: A support spring (23) is symmetrically connected inside the oil storage tank (9), and the other end of the support spring (23) is connected to a sliding mold (24). The sliding mold (24) is symmetrically connected to a clamping frame (25) on all sides, and a filter frame (26) is slidably connected inside the clamping frame (25). The sliding mold (24) is elastically connected to the bottom mold (8) via the support spring (23).

10. A stamping die for intelligent manufacturing of a server chassis shell according to claim 9, characterized in that: A sleeve (27) is arranged on the inner side of the support spring (23), and a slide cylinder (28) is sleeved on the inner side of the sleeve (27). A chip suction groove (29) is arranged on the surface of the slide mold (24), and a transfer chamber (30) is opened inside the slide mold (24). The transfer chamber (30) is connected to the oil storage tank (9) through the slide cylinder (28) and the sleeve (27), and two upper and lower one-way valves are arranged in the transfer chamber (30).