High efficiency press forming die for unitary metal tooling

Abstract

The application provides a high-efficiency stamping forming die for an integrated metal tool, relates to the technical field of stamping processing, and comprises an assembling seat, a discharge channel is formed in the middle of the assembling seat, two groups of stands are fixedly arranged at the top of the discharge channel, a stamping table is fixedly arranged at the top of the two groups of stands, a U-shaped frame is fixedly arranged outside the right stand, a rotary die set is rotatably arranged inside the rear side of the stamping table, the upper end and the lower end of the rotary die set are both plane structures, a bearing die is fixedly embedded in the middle of the plane structure, four groups of vertical stands are fixedly arranged at the top of the stamping table, a top seat is fixedly arranged at the top of the four groups of vertical stands, the stamping and trimming processes are integrated, the processing efficiency is greatly improved, the stamping die and the trimming die are designed in linkage, the traditional stamping forming and the separate trimming of the transferred material are broken, the flash can be cut off through re-stamping after the trimming die is reset after forming, and the material does not need to be transferred in the whole process.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of stamping processing, in particular to a high-efficiency stamping forming die for an integrated metal tool. BACKGROUND

[0002] When manufacturing metal tools such as wrenches, clamps or pliers, integrated stamping forming is required, and accessories are assembled as needed. During the stamping process, the heated cylindrical material is placed into the stamping machine by using a clamp, and the stamping is performed by closing the upper and lower molds.

[0003] The current forming process needs to use different processes of stamping and trimming to process. Excess burrs or flash will exist during the first stamping, and then the trimming equipment is used for stamping and trimming. The work mode is complicated, and the forming efficiency is affected. There is a lack of integrated stamping and trimming function. SUMMARY

[0004] Therefore, the present application provides a high-efficiency stamping forming die for an integrated metal tool to solve the above problems in the prior art.

[0005] The present application provides a high-efficiency stamping forming die for an integrated metal tool, which specifically comprises: an assembly seat, a discharge channel is formed in the middle of the assembly seat, two groups of stands are fixedly arranged on the top of the discharge channel, and a stamping table is fixedly arranged on the top of the two groups of stands; a U-shaped frame is fixedly arranged outside the right stand; a rotating die group is rotatably arranged inside the rear side of the stamping table; the upper and lower ends of the rotating die group are both planar structures, a bearing die is fixedly embedded in the middle of each planar structure; four groups of vertical stand rods are fixedly arranged on the top of the stamping table, a top seat is fixedly arranged on the top of the four groups of vertical stand rods; a hydraulic cylinder is fixedly arranged in the middle of the bottom of the top seat, a connecting seat is fixedly arranged at the extension end of the hydraulic cylinder, a stamping seat is fixedly arranged below the outside of the connecting seat; the top middle of the stamping seat is a groove structure, an electric cylinder B is fixedly arranged in the groove, the extension end of the electric cylinder B faces backward, and a lock post seat is fixedly arranged at the extension end of the electric cylinder B; a spring lock post is vertically and limitingly slidably arranged in the middle of the lock post seat; a stamping die is fixedly arranged at the bottom of the stamping seat; a sliding groove is formed in the two sides of the stamping die, and a trimming die is slidably arranged outside the stamping die; a round hole is formed in the rear end of the trimming die, and the bottom of the spring lock post can be inserted into the round hole of the trimming die.

[0006] Optionally, two groups of positioning posts are fixedly arranged on the top front side of the stamping table, a spring rod is limitingly and slidably arranged in each positioning post, and a clamping strip is fixedly arranged at the other end of each spring rod; the two groups of spring rods are arranged in an inclined state, the adjacent surfaces of the two groups of clamping strips are parallel surfaces; the spring rods are provided with springs to keep the minimum distance between the two groups of clamping strips, and the adjacent surfaces of the two groups of clamping strips are arc surfaces.

[0007] Optionally, the front upper side of the punching table is fixedly provided with a positioning round rod; the outer part of the positioning round rod is capable of mounting a clamp; the main body of the clamp is a scissor mechanism, and the hinge part of the clamp is a hollow shaft capable of being sleeved on the positioning round rod.

[0008] Optionally, the inner side of the U-shaped frame is fixedly provided with an electric cylinder A in the middle, and the telescopic end of the electric cylinder A is fixedly provided with a frame-shaped striding device penetrating through the right stand; the lower right side of the left stand is a convex structure, the lower left side of the striding device is chamfered, and the left end of the striding device is capable of being slidably inserted into the top of the convex structure; the top of the striding device is fixedly provided with a control rack, and the tooth surface of the control rack faces upward.

[0009] Optionally, the rear end of the rotating module is fixedly provided with a rear cover; the rear end of the rotating shaft of the rotating module is fixedly provided with an inner ratchet gear, the control rack is capable of being engaged with the inner ratchet gear, and the control rack drives the inner ratchet gear and the rotating module to rotate when the control rack moves rightward; the top of the striding device is attached to the lower surface of the rotating module.

[0010] Optionally, the front end of the lock pile base is fixedly provided with two groups of guide rods, and the guide rods are slidably connected with the punching base.

[0011] Optionally, the front side of the clamp is fixedly provided with a handle at each end; the rear end of the clamp is fixedly provided with a clamping block on the adjacent surface; the adjacent surfaces of the two groups of clamping blocks are inner arc tooth surfaces; the front positions of the two sides of the clamp are capable of being attached to the two groups of clamping strips.

[0012] Optionally, the lower side of the assembly base is provided with a quenching pool, the inner front position of the quenching pool is a slope structure; and the assembly base is fixedly arranged on the top front side of the quenching pool.

[0013] Optionally, the inner rear side of the quenching pool is a downwardly recessed structure, a material taking frame is arranged in the recessed part, and the bottom of the material taking frame is an intercepting net.

[0014] The beneficial effects are as follows:

[0015] The punching and trimming processes are integrated, which greatly improves the processing efficiency; through the linkage design of the punching die and the trimming die, the traditional punching forming and separate trimming mode are broken, the trimming die is driven to move backward by the electric cylinder B during punching to avoid interference, the trimming die is reset after forming, the flash can be trimmed through punching again, the workpiece directly enters the quenching link through the discharging groove, the whole process connection time is greatly shortened, and the batch processing efficiency of the integrated metal tool is significantly improved.

[0016] The clamping is precise and stable to ensure processing accuracy and achieve waste recycling. The mold indirectly fixes the heated cylindrical blank by clamping the clamp with two sets of inclined clamping bars and spring rods, which prevents the blank from shifting during stamping. The clamping block adopts an inner arc tooth surface design, which not only stably clamps the blank, but also completely clamps the flash waste after trimming. This keeps the dimensional error of the stamping forming tool within a small range. The flash waste can also be directly recycled and remelted into new blank by lifting the clamp, which greatly improves the resource recycling rate and reduces raw material waste and waste disposal costs.

[0017] A rotating module is used as the lower mold, which facilitates mold switching and workpiece recovery. After demolding, the workpiece falls directly into the quenching tank to cool and harden, and then slides into the material picker via a slope. The intercepting net at the bottom of the material picker easily separates the workpiece from the quenching liquid, forming a complete closed loop of automatic demolding, quenching, hardening and centralized part picking in the processing and forming process. This reduces manual transfer links, lowers the intensity of operation, and avoids secondary damage to the workpiece during the cooling process. Attached Figure Description

[0018] Figure 1 A schematic diagram of the overall structure of an embodiment of the present invention is shown;

[0019] Figure 2 A schematic diagram of the feeding method structure in an embodiment of the present invention is shown;

[0020] Figure 3 A schematic diagram of the stamping state structure of an embodiment of the present invention is shown;

[0021] Figure 4 An embodiment of the present invention is shown. Figure 3 Another structural diagram from a different angle;

[0022] Figure 5 An embodiment of the present invention is shown. Figure 3 A schematic diagram of the tilting structure;

[0023] Figure 6 A schematic diagram of the tangential state structure of an embodiment of the present invention is shown;

[0024] Figure 7 An embodiment of the present invention is shown. Figure 6 A schematic diagram of the tilting structure;

[0025] Figure 8 A three-dimensional disassembly diagram of an embodiment of the present invention is shown;

[0026] Figure 9 A three-dimensional structural schematic diagram of the clamping device according to an embodiment of the present invention is shown.

[0027] List of reference numerals in the attached diagram:

[0028] 1, assembly seat; 101, discharge channel; 102, stand; 2, punching table; 201, positioning pile; 202, spring rod; 203, clamping strip; 204, positioning round rod; 205, vertical stand; 206, top seat; 3, U-shaped frame; 301, electric cylinder A; 302, strainer; 303, control rack; 4, rotary module; 401, bearing die; 402, inner ratchet gear; 5, hydraulic cylinder; 501, connecting seat; 6, punching seat; 601, electric cylinder B; 602, lock pile seat; 603, guide rod; 604, spring lock pile; 7, punching die; 8, trimming die; 9, gripper; 901, handle; 902, clamping block; 10, quenching pool; 11, material taking frame. DETAILED DESCRIPTION

[0029] In order to make the purpose, scheme and advantages of the technical scheme of the present application more clear, the technical scheme of the present application embodiment will be described clearly and completely in the following with reference to the drawings of the specific embodiments of the present application.

[0030] Embodiment 1: please refer to the drawings in the specification, Figures 1 to 9 as shown:

[0031] The present application proposes a high-efficiency punching forming die for an integrated metal tool, comprising: an assembly seat 1, a discharge channel 101 is formed in the middle of the assembly seat 1, two groups of stands 102 are fixedly arranged at the top of the discharge channel 101, a punching table 2 is fixedly arranged at the top of the two groups of stands 102; a U-shaped frame 3 is fixedly arranged outside the right stand 102; a rotary module 4 is rotatably arranged inside the rear side of the punching table 2; the upper and lower ends of the rotary module 4 are both planar structures, a bearing die 401 is embeddedly and fixedly arranged in the middle of the planar structure; four groups of vertical stands 205 are fixedly arranged at the top of the punching table 2, a top seat 206 is fixedly arranged at the top of the four groups of vertical stands 205; a hydraulic cylinder 5 is fixedly arranged at the bottom of the top seat 206, a connecting seat 501 is fixedly arranged at the extension end of the hydraulic cylinder 5, a punching seat 6 is fixedly arranged below the outside of the connecting seat 501, the punching seat 6 is slidingly connected with the four groups of vertical stands 205; the top of the punching seat 6 is a groove structure, an electric cylinder B 601 is fixedly arranged in the groove, the extension end of the electric cylinder B 601 faces backward, a lock pile seat 602 is fixedly arranged at the extension end of the electric cylinder B 601; a spring lock pile 604 is vertically and limitingly slidingly arranged in the middle of the lock pile seat 602; a punching die 7 is fixedly arranged at the bottom of the punching seat 6; a sliding groove is formed in the two sides of the punching die 7, a trimming die 8 is slidingly arranged outside the punching die 7; a round hole is formed in the rear end of the trimming die 8, the bottom of the spring lock pile 604 can be inserted into the round hole of the trimming die 8.

[0032] The top front side of the stamping table 2 is fixedly provided with two groups of positioning piles 201, the positioning piles 201 are limited to slide the spring rods 202, and the other ends of the spring rods 202 are fixedly provided with clamping strips 203.

[0033] The upper front side of the stamping table 2 is fixedly provided with a positioning round rod 204; the outside of the positioning round rod 204 can be provided with a clamping device 9; the main body of the clamping device 9 is a scissor mechanism, the hinge part of the clamping device 9 is a hollow shaft, and the hollow shaft can be sleeved outside the positioning round rod 204.

[0034] The inner side of the U-shaped frame 3 is fixedly provided with an electric cylinder A301 in the middle, the telescopic end of the electric cylinder A301 is fixedly provided with a frame-shaped penetrating support 302, and the penetrating support 302 penetrates through the right stand 102; the lower right side of the left stand 102 is a convex structure, the lower left side of the penetrating support 302 is chamfered, and the left end of the penetrating support 302 can be slidably inserted into the top of the convex structure; the top of the penetrating support 302 is fixedly provided with a control rack 303, and the tooth surface of the control rack 303 faces upwards.

[0035] The rear end of the rotating module 4 is fixedly provided with a rear cover; the rear end of the rotating shaft of the rotating module 4 is fixedly provided with an inner ratchet gear 402, the control rack 303 can be engaged with the inner ratchet gear 402, and the control rack 303 drives the inner ratchet gear 402 and the rotating module 4 to rotate when the control rack 303 moves to the right; the top of the penetrating support 302 is attached to the lower surface of the rotating module 4.

[0036] The front end of the lock pile seat 602 is fixedly provided with two groups of guide rods 603, and the guide rods 603 are slidably connected with the stamping seat 6.

[0037] The front ends of the clamping device 9 are fixedly provided with handles 901; the rear ends of the clamping device 9 are fixedly provided with clamping blocks 902, and the adjacent surfaces of the two groups of clamping blocks 902 are inner arc tooth surfaces; the positions close to the front sides of the clamping device 9 can be attached to the two groups of clamping strips 203.

[0038] The lower side of the assembly seat 1 is provided with a quenching pool 10, the inner front side of the quenching pool 10 is a slope structure; and the assembly seat 1 is fixedly arranged on the top front side of the quenching pool 10.

[0039] The inner rear side of the quenching pool 10 is a downwardly recessed structure, a material taking frame 11 is arranged in the recessed part, and the bottom of the material taking frame 11 is an intercepting net.

[0040] The clamp block 902 is controlled by the handle 901 to clamp the heated cylindrical blank and place it above the bearing die 401; the clamp 9 is sleeved outside the positioning round rod 204, and is placed between the two groups of clamping strips 203, the spring rod 202 provides supporting force to make the clamping strips 203 close to each other, the clamp 9 is clamped, and finally the position of the blank is stably maintained through the clamp block 902, so that the subsequent stamping is prepared, and the blank positioning and fixing are realized.

[0041] Before stamping, the electric cylinder B601 pushes the lock post seat 602 backward, the spring lock post 604 cooperates to pull the trimming die 8 backward, so that the trimming die 8 does not interfere with stamping; the hydraulic cylinder 5 is started, the connecting seat 501 and the stamping seat 6 are lowered, the stamping die 7 is lowered, the bearing die 401 and the stamping die 7 are combined, the blank is stamped into a preliminary shape of the workpiece, and the stamping forming of the workpiece is completed.

[0042] After preliminary stamping, the stamping seat 6 is raised, the electric cylinder B601 pulls the lock post seat 602 forward, the spring lock post 604 cooperates to move the trimming die 8 forward, so that the cutting part of the trimming die 8 is aligned with the pressing part of the stamping die 7; the stamping is started again, the blade-shaped structure (designed around the shape of the workpiece) of the trimming die 8 is used for stamping cutting of the workpiece, and the flash is completely cut off; at the same time, the clamp block 902 continuously clamps the front end of the flash (maintains the cylindrical shape, even if it is deformed, it will not deviate), ensures accurate cutting, and realizes cutting of the flash of the workpiece.

[0043] After the flash is cut off, the stamping seat 6 is raised again, the clamp 9 is directly lifted, and the clamp 9 and the flash waste are taken out, the waste can be recycled and recast for preparing a new blank, and then the new blank can be clamped and taken into the next round of processing, to assist in completing the waste treatment and blank replacement.

[0044] When demolding, the electric cylinder A301 pulls out the penetrating support 302 to release the restriction on the rotating die set 4; in the moving process of the penetrating support 302, the control rack 303 contacts the inner ratchet gear 402 to drive the inner ratchet gear 402 to rotate half a circle, so that the rotating die set 4 and the bearing die 401 are turned over; after the workpiece is moved to below the rotating die set 4, the workpiece naturally falls and passes through the discharge channel 101 to enter a subsequent cooling link; at the same time, the inner side of the stamping table 2 is provided with friction blocks to contact both sides of the rotating die set 4, so that the rotating die set 4 does not rotate more than half a circle due to inertia; after demolding is completed, the electric cylinder A301 is stretched to make the penetrating support 302 re-define the position of the rotating die set 4 and provide support, at this time, when the control rack 303 moves to the left, the inner ratchet gear 402 idles and does not drive the rotating die set 4 to rotate, so that the workpiece is demolded and conveyed.

[0045] In example 2, the quenching pool 10 is filled with quenching liquid in advance, the workpiece falls into the pool to realize recycling and cooling at the same time, and then slides along the slope into the material taking rack 11; the workpiece finally falls on the intercepting net at the bottom of the material taking rack 11, the finished workpiece is taken out by lifting the material taking rack 11, and the workpiece cooling and recycling are completed.

[0046] Example 3: The supporting mold 401, stamping mold 7, and trimming mold 8 are supporting facilities that can be replaced according to different requirements of the workpiece to improve the versatility of the equipment; the stamping positions of the stamping mold 7 and the trimming mold 8 are pre-aligned, and the stamping part of the trimming mold 8 is a blade-shaped structure that surrounds the shape of the workpiece, ensuring that the flash can be accurately removed after stamping, ensuring the workpiece processing accuracy, and realizing processing adaptation and accuracy assurance.

[0047] The specific usage and function of this embodiment: In this invention, the first state of the processing process is as follows: Figure 2 Using the clamp 9 as a handling tool, the handle 901 is operated to control the clamp 902, and the clamp 902 is used to clamp the heated cylindrical tire column and place it above the bearing mold 401.

[0048] While maintaining clamping, the hinge of the clamp 9 is inserted outside the positioning rod 204, and the outside of the clamp 9 is placed between the two sets of clamping bars 203. The spring rod 202 provides support to bring the two sets of clamping bars 203 together and clamp the clamp 9. The clamping block 902 maintains the position stability of the cylindrical tire column.

[0049] like Figure 3 In the state of the process, the hydraulic cylinder 5 is activated to drive the connecting seat 501 and the stamping seat 6 to descend. During the descent of the stamping seat 6, the stamping die 7 descends. The stamping is achieved by the closing of the stamping die 7 and the bearing die 401, and the blank is stamped into the shape of the workpiece. Before that, the electric cylinder B601 is used to push the locking seat 602 backward, and the spring locking seat 604 is used to pull the trimming die 8 backward to avoid the trimming die 8 affecting the stamping.

[0050] After the initial stamping, the workpiece is not fully processed, and there are still integral flashes remaining on the outside of the workpiece;

[0051] At this time, the stamping base 6 is raised, and the electric cylinder B601 is retracted to pull the locking base 602 forward. In conjunction with the spring locking pin 604, the trimming die 8 is moved forward. The cutting part of the trimming die 8 is aligned with the pressing part of the stamping die 7. At this time, stamping is performed again. The trimming die 8 performs stamping-type trimming on the flash of the workpiece, so that the tool completely removes the flash and keeps the flash intact, and the workpiece is completely formed. After stamping, the front end of the flash still remains cylindrical and is clamped between the two sets of clamping blocks 902. Even if the front end of the flash is deformed, it can maintain its position.

[0052] like Figure 6 After the cutting action is performed, the stamping seat 6 is raised again. At this time, the clamp 9 can be lifted directly, and the flash scrap is removed. The recasting scrap can be prepared again.

[0053] At this point, demolding can be performed, and new blank column material can be clamped.

[0054] Demolding process reference Figure 8 , the shrink electric cylinder A301 will pull out the piercing device 302, the piercing device 302 will leave the rotating die set 4, and the restriction on the rotating die set 4 will be removed. The piercing device 302 can move a certain distance when it is separated from the rotating die set 4. At this time, the control rack 303 contacts the inner ratchet gear 402, drives the inner ratchet gear 402 to rotate half a circle, and then rotates the die set 4. Rotating half a circle, the upper and lower bearing dies 401 are turned over. When the workpiece moves to the lower part of the rotating die set 4, it will naturally fall and pass through the discharge channel 101 to fall into the quenching tank 10;

[0055] Then the stretching electric cylinder A301 can again limit the position of the rotating die set 4 and provide support effect. When the control rack 303 moves to the left, the inner ratchet gear 402 idles and does not drive the rotating die set 4 to rotate;

[0056] The quenching tank 10 is pre-filled with quenching liquid. The workpiece falls into the quenching tank 10 for recovery and cooling, slides through the slope to the material taking rack 11, and falls onto the intercepting net at the bottom of the material taking rack 11. The tool can be taken out by lifting the material taking rack 11;

[0057] The bearing die 401, the stamping die 7 and the trimming die 8 are matched facilities and can be replaced according to needs;

[0058] The stamping position of the stamping die 7 and the trimming die 8 is aligned. The stamping position of the trimming die 8 is a blade-shaped structure around the shape of the tool, which ensures that the flash can be cut off by the trimming die 8 after the stamping die 7 is stamped.

Claims

1. A high-efficiency stamping die for one-piece metal tools, characterized in that, include: The assembly base (1) has a discharge channel (101) in the middle. Two sets of uprights (102) are fixedly installed on the top two sides of the discharge channel (101). A stamping table (2) is fixedly installed on the top of the two sets of uprights (102). A U-shaped frame (3) is fixedly installed on the outside of the right upright (102). A rotating module (4) is rotatably installed inside the rear side of the stamping table (2). The upper and lower ends of the rotating module (4) are both planar structures. A bearing mold (401) is embedded and fixed in the middle of the planar structure. Four sets of vertical uprights (205) are fixedly installed on the top of the stamping table (2). A top seat (206) is fixedly installed on the top of the four sets of vertical uprights (205). A hydraulic cylinder (5) is fixedly installed in the middle of the bottom of the top seat (206). The extension end of the hydraulic cylinder (5) is fixedly provided with a connecting seat (501), and a stamping seat (6) is fixedly provided on the lower part of the connecting seat (501). The stamping seat (6) is slidably connected to four sets of vertical uprights (205). The top of the stamping seat (6) is a groove structure, and an electric cylinder B (601) is fixedly provided in the groove. The extension end of the electric cylinder B (601) faces backward, and a locking pin seat (602) is fixedly provided on the extension end of the electric cylinder B (601). A spring locking pin (604) is vertically limited and slidably provided in the middle of the locking pin seat (602). A stamping die (7) is fixedly provided at the bottom of the stamping seat (6). Sliding grooves are provided on both sides of the stamping die (7), and a trimming die (8) is slidably provided on the outside of the stamping die (7). The rear end of the trimming die (8) A round hole is provided, and the bottom of the spring locking post (604) can be inserted into the round hole of the trimming mold (8); two sets of positioning posts (201) are fixedly provided on the front side of the top of the stamping table (2), and spring rods (202) are limited and slidable in each positioning post (201), and clamping strips (203) are fixedly provided on the other end of each spring rod (202); the two sets of spring rods (202) are set in an inclined state, and the adjacent surfaces of the two sets of clamping strips (203) are parallel; springs are provided outside the spring rods (202) to keep the two sets of clamping strips (203) at the minimum distance, and the upper sides of the adjacent surfaces of the two sets of clamping strips (203) are all arc surfaces; a positioning round rod (204) is fixedly provided on the front upper part of the stamping table (2); a clamp (9) can be installed on the outside of the positioning round rod (204). The main body of the clamp (9) is a scissor mechanism, and the hinge of the clamp (9) is a hollow shaft, which can be sleeved on the positioning round rod (204); an electric cylinder A (301) is fixedly installed in the middle of the inner side of the U-shaped frame (3), and a frame-type support (302) is fixedly installed at the telescopic end of the electric cylinder A (301), which passes through the right upright (102); the lower right side of the left upright (102) is a protruding structure, and the lower left side of the support (302) is chamfered, and the left end of the support (302) can be slidably inserted into the top of the protruding structure; a control rack (303) is fixedly installed at the top of the support (302), with the tooth surface of the control rack (303) facing upward; a rear cover is fixedly installed at the rear end of the rotating module (4);An internal ratchet gear (402) is fixedly installed at the rear end of the rotating shaft of the rotating module (4). The control rack (303) can mesh with the internal ratchet gear (402). When the control rack (303) moves to the right, it drives the internal ratchet gear (402) and the rotating module (4) to rotate. The top of the support (302) is in contact with the lower surface of the rotating module (4). Both ends of the front side of the clamp (9) are fixedly equipped with handles (901). The adjacent surfaces of the rear end of the clamp (9) are fixedly equipped with clamping blocks (902). The adjacent surfaces of the two sets of clamping blocks (902) are inner arc-shaped tooth surfaces. The front positions on both sides of the clamp (9) can be in contact with two sets of clamping strips (203).

2. The high-efficiency stamping die for one-piece metal tools as described in claim 1, characterized in that, Two sets of guide rods (603) are fixedly installed at the front end of the locking base (602), and the guide rods (603) are slidably connected to the stamping base (6).

3. The high-efficiency stamping die for one-piece metal tools as described in claim 1, characterized in that, A quenching pool (10) is provided below the mounting base (1), and the front side of the interior of the quenching pool (10) is a sloping structure; the mounting base (1) is fixedly installed on the top front side of the quenching pool (10).

4. The high-efficiency stamping die for one-piece metal tools as described in claim 3, characterized in that, The interior rear side of the quenching pool (10) is a downwardly recessed structure, and a material picker (11) is placed in the recess. The bottom of the material picker (11) is an interception net.

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