Server case stamping die and using method thereof

Abstract

The invention discloses a server case stamping die and a using method thereof, and relates to the technical field of stamping dies. The device comprises a workbench, the bottom of the workbench is connected with a mounting frame, the mounting frame is fixedly connected with a jacking air cylinder, the top of the workbench is provided with a stand column, and the stand column is slidably sleeved with a moving plate; the lower die comprises two sub-die plates connected to the workbench, the jacking air cylinder is connected with a mounting plate, and the mounting plate is connected with a settling block which penetrates through the workbench and is inserted between the two sub-die plates in a penetrating mode; the upper die comprises a bearing plate connected to the bottom of the movable plate. The lower die is provided with the two sub-die plates and the settling block, the bending pressing frame and the pressing block are arranged on the upper die, the three processes of blanking, cold forging and bending can be completed by single equipment through mutual cooperation, transfer and equipment replacement are not needed, the transportation cost and time are saved, and the overall machining efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of stamping dies, and in particular to a server chassis stamping die and a method for using the same. Background Art

[0002] The server chassis is the physical enclosure of the server hardware, which provides protection, support, and heat dissipation for the components inside the server.

[0003] The shell of a server chassis is usually assembled from multiple sheet metal parts, of which the main shell is U-shaped and has heat dissipation holes. When the main shell is formed, it is first necessary to use a punching device to punch holes in the metal plate, and then use a stamping die to cold-press the punched sheet metal parts to form concave holes on the surface for heat dissipation. Finally, a bending die is used to extrude and bend the sheet metal parts. At least three processing steps are required to process the metal plate into the assembled shell of the server.

[0004] Most of the existing stamping dies are single-process dies. If you want to form the chassis shell, you need to go through multiple processing and transfer equipment, which wastes a lot of time and manpower and reduces the overall forming efficiency.

[0005] Therefore, the present invention proposes a server chassis stamping die and a method of using the same. Summary of the invention

[0006] The purpose of this application is to solve the problems in the above-mentioned background technology, and provide a server chassis stamping die and a method of using the same.

[0007] In order to achieve the above-mentioned purpose, this application specifically adopts the following technical solutions: Server chassis stamping die, including: A workbench, wherein a mounting frame is connected to the bottom of the workbench, a lifting cylinder is fixedly connected to the mounting frame, a column is installed on the top of the workbench, and a movable plate is slidably sleeved on the column; The lower mold comprises two sub-molds connected to the workbench, the lifting cylinder is connected to a mounting plate, and the mounting plate is connected to a sinker block that penetrates the workbench and is inserted between the two sub-molds; The upper mold comprises a bearing plate connected to the bottom of the movable plate, the bottom of the bearing plate is slidably connected to a pressing plate via a spring rod, and the bottom of the bearing plate is connected to a plurality of pressing and cutting blocks penetrating the pressing plate; The bending pressing frame is in an n-shape and sequentially penetrates the moving plate, the bearing plate and the pressing plate. The bending pressing frame and the sinker block are arranged opposite to each other up and down.

[0008] Furthermore, there are three columns which are respectively arranged at three corners of the workbench, and three guide sleeves which are sleeved with the columns are installed through the movable plate.

[0009] Furthermore, a rectangular groove for holding sheet metal parts is horizontally constructed on the upper surface of the sub-template, a plurality of vertical through grooves are arrayed in the rectangular groove, a V-shaped block is constructed in the middle of the vertical through groove, and a plurality of lifting rods inserted in the vertical through grooves are connected to the mounting plate by bolts.

[0010] Furthermore, the lifting rod is U-shaped and the upper end is wrapped around the two sides of the V-shaped block, blanking holes are constructed between the two sides of the lifting rod and the vertical through groove, and the top of the lifting rod is flush with the bottom of the rectangular groove.

[0011] Furthermore, the pressure-cutting block includes a pressure holding block and a cutting block connected to the bottom of the supporting plate by bolts, the bottom of the pressure holding block is V-shaped, the upper end of the settlement block is configured with a flat groove connected to the rectangular groove, the flat groove is configured with a V-shaped groove arranged opposite to the pressure holding block up and down, and the cutting block is arranged opposite to the vertical through groove up and down.

[0012] Furthermore, the cutting block comprises a U-shaped block, the bottom of the U-shaped block is configured with two cutting plates for plugging into the blanking holes, and a stamping block for contacting with the V-shaped block is configured between the two cutting plates.

[0013] Furthermore, the bottom of the pressure plate is constructed with a convex plate for engaging with the rectangular groove and the flat groove, the pressure cutting blocks all slide through the convex plate, the top of the pressure plate is constructed with four guide rods passing through the movable plate, the spring rod includes a vertical rod fixedly connected to the pressure plate, the upper end of the vertical rod slides through the bearing plate, and a support spring is connected between the bearing plate and the vertical rod.

[0014] Furthermore, it also includes a switching drive component for driving the movable plate and the bending pressure frame to move respectively, and the switching drive component includes two hydraulic push rods, one of which is connected to the movable plate, and the other is connected to the bending pressure frame.

[0015] Furthermore, the switching drive component also includes a return spring 1 connected between the workbench and the movable plate, the return spring is connected on three columns, a return spring 2 is connected between the bending pressure frame and the movable plate, the upper end of the bending pressure frame is configured with a through hole for the hydraulic push rod to move through, a horizontal plate for closing the through hole is inserted in the bending pressure frame for horizontal sliding, and an electric push rod for driving the horizontal movement of the horizontal plate is installed on the side of the bending pressure frame.

[0016] The method for using the server chassis stamping die includes the following steps: S1: Loading, placing the sheet metal parts into the rectangular groove and the flat groove on the sub-template and the sinker; S2: Punching: The hydraulic push rod pushes the movable plate downward, and the pressing plate moves toward the sheet metal part, and cooperates with the lower die to tightly clamp the sheet metal part. The movable plate continues to move downward, and the spring rod between the bearing plate and the pressing plate contracts. The bearing plate moves downward relative to the pressing plate, and the cutting block in the pressing block first contacts the sheet metal part and cooperates with the blanking hole to form a punching and shearing operation; S3: Grooving, the carrying plate continues to move downward, the holding block and the stamping block simultaneously contact the sheet metal part, and the V-groove and the V-block cooperate to perform a groove forming operation on the sheet metal part; S4: Bending and forming, the hydraulic push rod drives the upper mold to move upward as a whole, and the other hydraulic push rod drives the bending pressure frame to move downward. At the same time, the lifting cylinder drives the sinker block to move downward and form a groove between the two sub-die plates. The bending pressure frame will resist the sheet metal and bend into the groove to complete the forming operation.

[0017] The beneficial effects of this application are as follows: The present application sets the lower mold into two sub-molds and a sinker block, and sets a bending pressure frame on the upper mold. When the pressure plate simultaneously contacts the two sub-molds and a sinker block, the cutting block can be used for punching operation, and then the cold forging operation is continued. Finally, the bending pressure frame is used to cooperate with the descent of the sinker block to form a groove, and the sheet metal material is bent and formed. All three operations are realized in the present mold without changing equipment, saving the cost and time of mid-transfer transportation, and improving the overall processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a three-dimensional structural diagram of the first embodiment of the present application; Figure 2 This is a three-dimensional structural diagram of the second embodiment of the present application; Figure 3 This application Figure 1 Half-section view of the three-dimensional structure; Figure 4 It is a partial three-dimensional structural diagram of this application; Figure 5 It is a partial cross-sectional view of the three-dimensional structure of the mold under this application; Figure 6 It is a half-section diagram of the three-dimensional structure of the mold in this application; Figure 7 This is a three-dimensional structural diagram of the pressed block of this application; Figure 8 This application Figure 7 Partial cross-sectional view of the three-dimensional structure.

[0019] Reference numerals: 1, workbench; 101, mounting frame; 102, lifting cylinder; 103, column; 104, moving plate; 105, guide sleeve; 2, lower mold; 201, sub-mold; 2011, rectangular groove; 2012, vertical groove; 2013, V-shaped block; 2014, lifting rod; 2015, blanking hole; 202, mounting plate; 203, sinker block; 2031, flat groove; 2032, V-shaped groove; 3, upper mold; 301, bearing plate; 302 , spring rod; 3021, vertical rod; 3022, support spring; 303, pressure plate; 3031, convex plate; 3032, guide rod; 304, cutting block; 3041, holding block; 3042, cutting block; 30421, U-shaped block; 30422, cutting plate; 30423, stamping block; 4, bending pressure frame; 5, switching drive member; 501, reset spring one; 502, reset spring two; 503, perforation; 504, horizontal plate; 505, electric push rod. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Embodiment 1

[0021] like Figure 1-Figure 6 As shown, a server chassis stamping die proposed in one embodiment of the present application includes: A workbench 1, a mounting frame 101 is connected to the bottom of the workbench 1, a lifting cylinder 102 is fixedly connected to the mounting frame 101, a column 103 is installed on the top of the workbench 1, and a moving plate 104 is slidably sleeved on the column 103; The lower mold 2 includes two sub-molds 201 connected to the workbench 1, and the lifting cylinder 102 is connected to a mounting plate 202, and the mounting plate 202 is connected to a sinker block 203 that penetrates the workbench 1 and is inserted between the two sub-molds 201. The mounting plate 202 is not only used to connect the sinker block 203, but also can be used to eject the processed sheet metal parts from the sub-molds 201 through the lifting of the lifting cylinder 102, so as to facilitate the unloading operation and increase convenience; The upper mold 3 includes a carrier plate 301 connected to the bottom of the movable plate 104, and a pressure plate 303 is slidably connected to the bottom of the carrier plate 301 through a spring rod 302. A plurality of pressing blocks 304 that penetrate the pressing plate 303 are connected to the bottom of the carrier plate 301. The spring rod 302 is arranged between the carrier plate 301 and the pressing plate 303 to separate the two, so that when the upper mold 3 moves downward, the pressing plate 303 first contacts the sheet metal part, thereby squeezing the sheet metal part to position it, and then continues to push the carrier plate 301 downward, and uses the pressing block 304 to cut and cold-press the sheet metal part. It should be noted that the pressing block 304 adopts the structure of a bottom cutter and an upper mold, and a single stroke can perform two processing processes, without multiple strokes, saving workpiece transfer time and cost, and improving processing efficiency; The bending press frame 4 is n-shaped and sequentially penetrates the movable plate 104, the bearing plate 301 and the press plate 303. The bending press frame 4 and the sinker block 203 are arranged opposite to each other up and down. The two ends of the bottom of the n-shaped bending press frame 4 are arranged opposite to the edges of the sinker block 203. When the bending press frame 4 moves downward, the sinker block 203 will move downward synchronously and form a groove between the two sub-form plates 201. The bending press frame 4 moves downward to resist the sheet metal and enter the groove, thereby squeezing the sheet metal to form a U-shaped frame plate structure, thereby realizing the bending forming process; The overall device is composed of multiple modules. By utilizing the two-stroke operation of the upper mold 3 and the bending press frame 4 and the two-stroke operation of the lower mold 2, three processing techniques can be realized respectively. Compared with traditional stamping processing, it saves the transfer process and does not require additional stamping equipment, which improves processing efficiency and saves manpower and equipment costs.

[0022] like Figure 1 As shown, in Example 1, there are three columns 103 and they are arranged at three corners of the workbench 1. Three guide sleeves 105 connected with the columns 103 are installed on the movable plate 104. It should be noted that the columns 103 are used as the main guiding components of the device. They are arranged on the outside of the lower mold 2 and the upper mold 3 to guide the movable plate 104 and the workbench 1 so that the movable plate 104 is always vertically facing the workbench 1 when moving, thereby ensuring the processing accuracy. At the same time, only three columns 103 are arranged, and an opening can be formed therebetween to facilitate the installation of the lower mold 2 and the upper mold 3 and increase convenience.

[0023] like Figure 5As shown, in the first embodiment, a rectangular groove 2011 for accommodating a sheet metal part is horizontally constructed on the upper surface of the split template 201, a plurality of vertical through grooves 2012 are arrayed in the rectangular groove 2011, a V-shaped block 2013 is constructed in the middle of the vertical through groove 2012, a plurality of lifting rods 2014 inserted in the vertical through groove 2012 are connected to the mounting plate 202 by bolts, the rectangular groove 2011 is mainly used for initial positioning of the sheet metal part, and the V-shaped block 2013 is suspended in the vertical through groove 2012. A cold forging groove can be formed between the top of the vertical through groove 2012. It should be noted that the lifting rod 2014 does not block the vertical through groove 2012. When the pressing block 304 punches the sheet metal, the material on the sheet metal can still enter the vertical through groove 2012 for blanking. Subsequent downward pressure can also be combined with the cold forging groove for extrusion molding operation, and air holes and heat dissipation grooves can be formed on the sheet metal. Both processes can be carried out on a single stamping equipment, saving equipment costs, eliminating the need to transfer workpieces, and improving processing efficiency.

[0024] like Figure 5 As shown, in the first embodiment, the lifting rod 2014 is U-shaped and the upper end is wrapped around the two sides of the V-shaped block 2013. A blanking hole 2015 is constructed between the two sides of the lifting rod 2014 and the vertical through groove 2012. The top of the lifting rod 2014 is flush with the bottom of the rectangular groove 2011. It should be noted that the bottom end of the pressure cutting block 304 is a cutting knife end, which can cooperate with the blanking hole 2015 to facilitate the blanking operation of the sheet metal part, wherein the top of the lifting rod 2014 can be used as the blanking hole 201 5 The support of the edge provides a cutting support point for the punching operation, which facilitates the smooth progress of the punching. The subsequent pressing and cutting block 304 continues to move downward, which can make the lifting rod 2014 move downward synchronously, so as to expose the V-shaped block 2013 and cooperate with the pressing and cutting block 304, thereby squeezing the sheet metal part to deform smoothly and form a heat dissipation groove. When the lifting rod 2014 rises and resets again, it can resist the deformed part of the sheet metal part and move upward synchronously, so as to eject the sheet metal part as a whole out of the rectangular groove 2011, and realize a convenient demoulding operation.

[0025] like Figure 6-Figure 7As shown, in the first embodiment, the pressure cutting block 304 includes a pressure holding block 3041 and a cutting block 3042 connected to the bottom of the bearing plate 301 by bolts. The bottom of the pressure holding block 3041 is V-shaped. The upper end of the sinker block 203 is configured with a flat groove 2031 connected to the rectangular groove 2011. The flat groove 2031 is configured with a V-shaped groove 2032 arranged vertically opposite to the pressure holding block 3041. The cutting block 3042 is arranged vertically opposite to the vertical through groove 2012. The flat groove 2031 is connected to the rectangular groove 2011 to position the sheet metal part, ensure the accuracy of processing, and cut the sheet metal part. The knife block 3042 is used to plug and cooperate with the blanking hole 2015 to realize the punching process of the sheet metal part, and the holding block 3041 is used to extrude and cooperate with the V-groove 2032 to realize the cold forging forming process of the sheet metal part. It should be noted that the height of the holding block 3041 is the same as the structure of the cold forging part in the cutting block 3042. When the cutting block 304 moves downward, the first thing that contacts the sheet metal part is the cutting part of the cutting block 3042, and the subsequent contact with the sheet metal part is the cold forging part in the cutting block 3042 and the holding block 3041, and both are subjected to the cold forging extrusion process at the same time.

[0026] like Figure 7-Figure 8 As shown, in the first embodiment, the cutting block 3042 includes a U-shaped block 30421, and the bottom of the U-shaped block 30421 is configured with two cutting plates 30422 for plugging into the blanking hole 2015, and a stamping block 30423 for contacting the V-shaped block 2013 is configured between the two cutting plates 30422. It should be noted that the cutting block 3042 is divided into the cutting plate 30422 and the stamping block 30423, and two processing processes of blanking and cold forging can be performed in sequence when the cutting plate 30422 moves downward to contact the sheet metal part. Specifically, the U-shaped block 30421 moves downward, and the cutting plate 30422 first contacts the sheet metal part in the rectangular groove 2011, and continues to press downward, and the sheet metal part is subjected to the blanking hole 2015. The support at the edge of 15 can form shear stress with the end of the cutting plate 30422, so as to cut the sheet metal and make the cut waste fall out through the blanking hole 2015. Then, the lifting rod 2014 moves down and out of the range of the V-block 2013 to expose it completely. At this time, the structure above the V-block 2013 is the same as the structure of the V-groove 2032. The stamping block 30423 continues to move down and can cooperate with the V-block 2013 to extrude the sheet metal to form a heat dissipation groove, so as to realize the cold forging forming process. The upper mold 3 can realize two processing processes in a single stroke, which saves energy and improves processing efficiency. In addition, there is no need to re-position and align in a single stroke, thereby ensuring processing accuracy.

[0027] like Figure 8As shown, in embodiment 1, the bottom of the pressing plate 303 is constructed with a convex plate 3031 for engaging with the rectangular groove 2011 and the flat groove 2031, and the cutting blocks 304 slide through the convex plate 3031. The top of the pressing plate 303 is constructed with four guide rods 3032 that penetrate the movable plate 104. The spring rod 302 includes a vertical rod 3021 fixedly connected to the pressing plate 303, and the upper end of the vertical rod 3021 slides through the bearing plate 301. A supporting spring 3022 is connected between the bearing plate 301 and the vertical rod 3021. The convex plate 3031 can be used to form upper and lower clamping components with the rectangular groove 2011 and the flat groove 2031, so that the sheet metal parts can be accurately positioned and clamped to prevent them from slipping and ensure the subsequent processing accuracy. The setting of the supporting spring 3022 ensures that a certain distance is always maintained between the bearing plate 301 and the pressing plate 303, so that the pressing plate 303 can be easily reset relative to the bearing plate 301.

[0028] like Figure 1 As shown, in embodiment 1, it also includes a switching drive member 5 for driving the movable plate 104 and the bending pressure frame 4 to move respectively. The switching drive member 5 includes two hydraulic push rods, one of which is connected to the movable plate 104, and the other is connected to the bending pressure frame 4. It should be noted that the above-mentioned hydraulic push rod is a hydraulic cylinder structure in the existing stamping equipment. In this embodiment, a double hydraulic cylinder stamping equipment is used, in which the moving end of one hydraulic push rod is connected to the movable plate 104, and the moving end of the other hydraulic push rod is connected to the bending pressure frame 4, and the movements of the two do not interfere with each other. Embodiment 2

[0029] like Figure 2As shown, in the second embodiment, the switching drive member 5 also includes a return spring 501 connected between the workbench 1 and the movable plate 104, the return spring 501 is sleeved on the three columns 103, and a return spring 2 502 is connected between the bending press frame 4 and the movable plate 104. The upper end of the bending press frame 4 is constructed with a through hole 503 for the hydraulic push rod to move through, and a horizontal plate 504 for closing the through hole 503 is inserted horizontally and slidably on the bending press frame 4. An electric push rod 505 for driving the horizontal movement of the horizontal plate 504 is installed on the side of the bending press frame 4. In this embodiment, the stamping equipment adopts a single hydraulic cylinder structure, and the moving end of the hydraulic push rod is not connected to any parts, and only moves through the through hole 503 of the bending press frame 4. When blanking and cold forging operations are required, the moving end of the hydraulic push rod passes through the bending press frame 4 and contacts the movable plate 104, thereby pushing the movable plate 104 to move downward as a whole. During the downward movement, the return spring 501 is stretched, and the blanking and cold forging extrusion is gradually completed. After the operation, the moving end of the hydraulic push rod moves up and passes through the perforation 503. At this time, the moving plate 104 automatically moves up and resets through the elastic force of the return spring 1 501, and the bending pressure frame 4 uses the electric push rod 505 to push the cross plate 504 to close the perforation 503. The moving end of the hydraulic push rod moves down again, which can resist the bending pressure frame 4 from moving down. It should be noted that the return spring 2 502 is only an isolation component between the bending pressure frame 4 and the moving plate 104, which is convenient for it to automatically reset away from the moving plate 104 when it is not under force. The elastic force of the return spring 2 502 is much smaller than the elastic force of the return spring 1 501. Therefore, when the bending pressure frame 4 moves, it will not drive the moving plate 104 to move too much. The bending pressure frame 4 can move alone and cooperate with the sinker 203 to perform extrusion and bending operations on the sheet metal parts, thereby realizing the bending and forming process of the sheet metal parts. The single-drive structure saves equipment costs while also increasing the linkage between structures, ensuring that the force points are in the same position, and increasing the forming accuracy of the workpiece.

[0030] like Figure 1-Figure 8 As shown, the method for using the server chassis stamping die proposed in the first embodiment of the present application specifically includes the following steps: S1: Loading, placing the sheet metal parts into the rectangular groove 2011 and the flat groove 2031 on the sub-mould plate 201 and the sinker block 203; S2: Punching: The hydraulic push rod pushes the movable plate 104 downward, and the pressing plate 303 moves toward the sheet metal part. The pressing plate 303 cooperates with the lower die 2 to tightly clamp the sheet metal part. The movable plate 104 continues to move downward, and the spring rod 302 between the bearing plate 301 and the pressing plate 303 contracts. The bearing plate 301 moves downward relative to the pressing plate 303. The cutting block 3042 in the cutting block 304 first contacts the sheet metal part and cooperates with the blanking hole 2015 to form a punching and shearing operation. S3: Grooving, the carrier plate 301 continues to move downward, the holding block 3041 and the stamping block 30423 contact the sheet metal part at the same time, and cooperate with the V-groove 2032 and the V-block 2013 to perform a groove forming operation on the sheet metal part; S4: Bending and forming, the hydraulic push rod drives the upper mold 3 to move upward as a whole, and another hydraulic push rod drives the bending press frame 4 to move downward. At the same time, the lifting cylinder 102 drives the sinker block 203 to move downward and form a groove between the two sub-die plates 201. The bending press frame 4 will resist the sheet metal and bend into the groove to complete the forming operation.

[0031] like Figure 2-Figure 8 As shown, the method for using the server chassis stamping die proposed in the second embodiment of the present application specifically includes the following steps: S1: Loading, placing the sheet metal parts into the rectangular groove 2011 and the flat groove 2031 on the sub-mould plate 201 and the sinker block 203; S2: Punching. The hydraulic push rod passes through the through hole 503 of the bending press frame 4 and contacts the movable plate 104, pushing the movable plate 104 downward. The pressing plate 303 moves toward the sheet metal part, and cooperates with the lower die 2 to tightly clamp the sheet metal part. The movable plate 104 continues to move downward. During this period, the return spring 1 501 extends and stores energy. The spring rod 302 between the bearing plate 301 and the pressing plate 303 contracts. The bearing plate 301 moves downward relative to the pressing plate 303. The cutting block 3042 in the cutting block 304 first contacts the sheet metal part and cooperates with the blanking hole 2015 to form a punching and shearing operation. S3: Grooving, the carrier plate 301 continues to move downward, the holding block 3041 and the stamping block 30423 contact the sheet metal part at the same time, and cooperate with the V-groove 2032 and the V-block 2013 to perform a groove forming operation on the sheet metal part. After completion, the hydraulic push rod is reset, the moving plate 104 loses the downward thrust and automatically resets by the elastic force of the reset spring 1 501, and the carrier plate 301 is automatically reset by the spring rod 302; S4: Bending and forming, first the electric push rod 505 pushes the horizontal plate 504 to move and seals the perforation 503 of the bending press frame 4. The hydraulic push rod moves downward and contacts the horizontal plate 504, thereby driving the bending press frame 4 to move downward alone. At the same time, the lifting cylinder 102 drives the sinker block 203 to move downward and form a groove between the two sub-forms 201. The bending press frame 4 contacts the sheet metal and bends into the groove to complete the forming operation. Subsequently, the lifting cylinder 102 and the lifting rod 2014 move upward to eject the workpiece to complete the blanking operation.

[0032] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. Server chassis stamping die, characterized in that: include: A workbench (1), wherein the bottom of the workbench (1) is connected to a mounting frame (101), a lifting cylinder (102) is fixedly connected to the mounting frame (101), a column (103) is installed on the top of the workbench (1), and a moving plate (104) is slidably sleeved on the column (103); The lower mold (2) comprises two sub-molds (201) connected to the workbench (1), the lifting cylinder (102) is connected to a mounting plate (202), and the mounting plate (202) is connected to a sinker (203) that passes through the workbench (1) and is inserted between the two sub-molds (201); The upper mold (3) comprises a bearing plate (301) connected to the bottom of the movable plate (104); the bottom of the bearing plate (301) is slidably connected to a pressing plate (303) via a spring rod (302); the bottom of the bearing plate (301) is connected to a plurality of pressing blocks (304) penetrating the pressing plate (303); The bending pressure frame (4) is in an n-shape and sequentially penetrates the movable plate (104), the bearing plate (301) and the pressure plate (303); the bending pressure frame (4) and the sinker block (203) are arranged vertically opposite to each other.

2. The server chassis stamping die according to claim 1, characterized in that: The number of the upright posts (103) is three and they are arranged at three corners of the workbench (1). The movable plate (104) is penetrated by three guide sleeves (105) which are sleeved with the upright posts (103).

3. The server chassis stamping die according to claim 1, characterized in that: The upper surface of the split template (201) is horizontally configured with a rectangular groove (2011) for accommodating sheet metal parts, the rectangular groove (2011) is configured with a plurality of vertical through grooves (2012) in an array, a V-shaped block (2013) is configured in the middle of the vertical through groove (2012), and the mounting plate (202) is connected to a plurality of lifting rods (2014) inserted in the vertical through grooves (2012) via bolts.

4. The server chassis stamping die according to claim 3, characterized in that: The lifting rod (2014) is U-shaped and its upper end is wrapped around two sides of the V-shaped block (2013); blanking holes (2015) are constructed between the two sides of the lifting rod (2014) and the vertical through groove (2012); and the top end of the lifting rod (2014) is flush with the bottom of the rectangular groove (2011).

5. The server chassis stamping die according to claim 4, characterized in that: The pressure-cutting block (304) comprises a pressure-holding block (3041) and a cutting block (3042) connected to the bottom of the bearing plate (301) by bolts; the bottom of the pressure-holding block (3041) is V-shaped; the upper end of the sinker block (203) is provided with a flat groove (2031) connected to the rectangular groove (2011); the flat groove (2031) is provided with a V-shaped groove (2032) arranged vertically opposite to the pressure-holding block (3041); and the cutting block (3042) is arranged vertically opposite to the vertical through groove (2012).

6. The server chassis stamping die according to claim 5, characterized in that: The cutting block (3042) comprises a U-shaped block (30421), the bottom of the U-shaped block (30421) being configured with two cutting plates (30422) for plugging into the blanking hole (2015), and a stamping block (30423) for contacting the V-shaped block (2013) being configured between the two cutting plates (30422).

7. The server chassis stamping die according to claim 5, characterized in that: The bottom of the pressing plate (303) is configured with a convex plate (3031) for engaging with the rectangular groove (2011) and the flat groove (2031); the pressing blocks (304) all slide through the convex plate (3031); the top of the pressing plate (303) is configured with four guide rods (3032) that penetrate the movable plate (104); the spring rod (302) comprises a vertical rod (3021) fixedly connected to the pressing plate (303); the upper end of the vertical rod (3021) slides through the bearing plate (301); and a supporting spring (3022) is connected between the bearing plate (301) and the vertical rod (3021).

8. The server chassis stamping die according to claim 1, characterized in that: It also includes a switching drive member (5) for driving the movable plate (104) and the bending pressure frame (4) to move respectively, and the switching drive member (5) includes two hydraulic push rods, one of which is connected to the movable plate (104) and the other is connected to the bending pressure frame (4).

9. The server chassis stamping die according to claim 8, characterized in that: The switching drive member (5) further comprises a return spring 1 (501) connected between the workbench (1) and the movable plate (104), the return spring 1 (501) being sleeved on the three uprights (103), a return spring 2 (502) being connected between the bending pressure frame (4) and the movable plate (104), a through hole (503) for a hydraulic push rod to move through is formed at the upper end of the bending pressure frame (4), a horizontal plate (504) for closing the through hole (503) is horizontally slidably inserted on the bending pressure frame (4), and an electric push rod (505) for driving the horizontal movement of the horizontal plate (504) is installed on the side of the bending pressure frame (4).

10. A method for using a server chassis stamping die, applied to the server chassis stamping die according to any one of claims 1 to 9, characterized in that: The specific steps include: S1: loading, placing the sheet metal parts into the rectangular groove (2011) and the flat groove (2031) on the sub-mould plate (201) and the sinker block (203); S2: Punching, the movable plate (104) is pushed downward by the hydraulic push rod, the pressing plate (303) moves toward the sheet metal part, and cooperates with the lower mold (2) to tightly clamp the sheet metal part. The movable plate (104) continues to move downward, the spring rod (302) between the bearing plate (301) and the pressing plate (303) contracts, the bearing plate (301) moves downward relative to the pressing plate (303), and the cutting block (3042) in the pressing and cutting block (304) first contacts the sheet metal part and cooperates with the blanking hole (2015) to form a punching and shearing operation; S3: Grooving, the carrying plate (301) continues to move downward, the holding block (3041) and the stamping block (30423) simultaneously contact the sheet metal part, and cooperate with the V-shaped groove (2032) and the V-shaped block (2013) to perform a groove forming operation on the sheet metal part; S4: Bending and forming, the hydraulic push rod drives the upper mold (3) to move upward as a whole, and another hydraulic push rod drives the bending press frame (4) to move downward. At the same time, the lifting cylinder (102) drives the sinker block (203) to move downward and form a groove between the two sub-die plates (201). The bending press frame (4) will resist the sheet metal part and bend into the groove to complete the forming operation.

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