Water-cooled powder metallurgy die

Abstract

The invention provides a water-cooled powder metallurgy die. The water-cooled powder metallurgy die structurally comprises a positioning base, a die body, a stamping structure, a heat absorption pipeline, a water inlet pipe, a water outlet pipe and a cold water tank. After the stamping structure is improved, the top cover is firmly positioned at the original point of the upper end of the die main body after the magnetic attraction frame and the edge restraining rod of the top cover are inserted into the corners of the die main body and are attracted, and then the punch main body of the stamping head can stably and vertically slide up and down in combination with a hydraulic press or a mechanical press in combination with central restraining of the restraining body; the situation that stable vertical punching operation cannot be formed due to deviation of the center position of the punch main body caused by machine shaking and instability of the top cover during operation is avoided, so that the stable punching forming stability of metal powder in the die main body can be improved; and then the connecting piece at the upper end of the punch main body can be firmly connected with a hydraulic press or a mechanical press through the clamping groove, the rebound block and the locking groove, so that the conditions of shaking and automatic falling caused by unstable connection are avoided.

Description

Technical Field

[0001] This invention relates to the field of powder metallurgy mold technology, and more specifically to a water-cooled powder metallurgy mold. Background Technology

[0002] A water-cooled powder metallurgy mold is a high-strength mold with an integrated water circulation cooling channel used in powder metallurgy pressing and forming processes. In the powder metallurgy process, metal powder is introduced into the mold cavity and then pressed into a special shape under great pressure to form a "green blank". Subsequently, a closed circulation system is formed by setting a precise pipeline network inside or around the mold. Cold water enters from the inlet to absorb internal heat and then flows out from the outlet to achieve water cooling circulation and cooling of the mold. This enables rapid cooling, shortens the production cycle, and achieves the effect of high-speed continuous pressing. In summary, the inventors have found that existing water-cooled metallurgical molds have the following main defects: because current water-cooled powder metallurgy molds use an upper punch combined with a hydraulic press or mechanical press to stamp the internal metal powder, the stamping process is prone to shaking and instability due to the mechanical locking gap between the upper punch and the top of the mold body. As a result, the center accuracy of the stamping process is reduced due to the influence of unstable factors. Summary of the Invention

[0003] The technical solution adopted by the present invention to achieve the technical objective is: a water-cooled powder metallurgy mold, the structure of which includes: a positioning base, a mold body, a stamping structure, a heat absorption pipe, a water inlet pipe, a water outlet pipe, and a cold water tank. The upper end of the positioning base determines the position of the mold body and the cold water tank. The upper end of the mold body is covered by the stamping structure and the edge is provided with heat absorption pipes connected to the water inlet pipe and the water outlet pipe. The other end of the water inlet pipe and the water outlet pipe is connected to the cold water tank.

[0004] As a further improvement of the present invention, the stamping structure is provided with a stamping head, which is embedded in the center of the restraining body and penetrates through the center of the top cover. A magnetic frame is provided at the edge of the top cover and a restraining rod is mounted thereon.

[0005] As a further improvement of the present invention, the punch head is also provided with a mandrel, the upper end of which is threadedly connected to the lower end of the locking rod, the upper end of the locking rod is connected to the center of the punch body, the upper end of the punch body is connected to a connecting piece and the center of the connecting piece is connected to a locking sleeve, the punch body and the upper end of the locking rod are threadedly connected, the edge of the punch body has a clamping groove and a rebound block is provided inside, and a locking groove is opened at the position of the rebound block.

[0006] As a further improvement of the present invention, the magnetic frame and restraining rod of the top cover of the stamping structure are first positioned to cover the upper end of the mold body. Then, the restraining body of the top cover limits the edge of the punch body of the stamping head, so that the punch body and the interior of the mold body are parallel to each other. Then, the punch body is fixedly connected to the hydraulic press or mechanical press by the edge clamping groove of the upper connecting part, the rebound block, and the locking groove. At the same time, the lower end mandrel is detachably threadedly connected to the punch body by the locking rod.

[0007] As a further improvement of the present invention, the positioning base is set in a parallel orientation and the mold body and the cold water tank are vertically positioned. The upper end of the mold body is parallel to the stamping structure. The heat absorption pipes are distributed on the edge of the mold body and the heat energy inside the mold body is absorbed by the cold water circulation through the water inlet pipe and the water outlet pipe. The cold water tank is equipped with a water pump and a cooler.

[0008] As a further improvement of the present invention, the stamping head intersects with the center of the top cover through the restraining body, the magnetic frame of the edge of the top cover is square and matches the shape of the upper end of the mold body, and the restraining rod is a solid cylindrical shape and is set in a vertical position and inserted into the edge of the mold body.

[0009] As a further improvement of the present invention, the center of the mandrel and the center of the upper locking rod overlap each other, the connecting part of the punch body is set in a vertical position, the inner wall of the locking sleeve of the connecting part is provided with an internal thread and is threadedly connected to the locking rod, and the clamping groove includes a rubber rebound block and a circular locking groove that is threadedly fixed to the working position of the hydraulic press or mechanical press.

[0010] As a further improvement of the present invention, the restraining body is provided with a vertical cavity, which penetrates through the center of the contact wall and the contact wall is integral with the reinforcing frame. A connecting layer is provided on the outer edge of the reinforcing frame to determine the position of the reinforcing block.

[0011] As a further improvement of the present invention, the contact wall of the reinforcing frame is polished and the vertical cavity is square in shape and matches the shape of the punch body. The connecting layer has a connecting groove to determine the position of the reinforcing block. There are four reinforcing blocks in total, which are distributed on the surface edge of the top cover.

[0012] As a further improvement of the present invention, the reinforcing block is also provided with an insert block, the upper end of the insert block is connected to a block body, a connecting block is provided at the center of the surface of the block body, and a positioning block is also connected to the upper end of the block body and a threaded groove is opened in the center of the inside to allow the bolt to pass through and lock.

[0013] As a further improvement of the present invention, the insert is embedded in the surface edge of the top cover by the block body and the block body is connected to the reinforcing frame layer by the connecting block. The center of the positioning block is penetrated by the threaded groove and locked to the surface of the top cover by bolts.

[0014] As a further improvement of the present invention, a positioning plate is provided at the connection position between the water inlet pipe and the water outlet pipe and the mold body. Clamping blocks are provided on the upper and lower edges of the positioning plate surface. The position of the sealing frame is determined by the clamping blocks. A flow groove is provided in the center of the sealing frame. Rubber sheets are provided at the left and right edges of the flow groove. One end of the rubber sheet is connected to a push rod and the other end of the push rod is connected to a control block.

[0015] As a further improvement of the present invention, the clamping block of the positioning plate is set in a symmetrical position, and the sealing frame at the position of the clamping block is made of rubber and clamps and covers one edge of the water inlet pipe and the water outlet pipe. The flow channel is connected to the heat absorption pipe through the inside of the positioning plate. The rubber sheet in the flow channel slides laterally through the push rod and the control block to clamp and fix one end of the water inlet pipe and the water outlet pipe for a second time.

[0016] As a further improvement of the present invention, the control block is also provided with an overlapping cavity, the overlapping cavity is equipped with a locking bolt and is located at the center of the side of the solid block, the surface of the solid block is also equipped with an anti-slip block, and one end of the anti-slip block is connected to a connecting rod.

[0017] As a further improvement of the present invention, the overlapping frame allows one end of the push rod to be embedded and locked by a locking bolt. Two anti-slip blocks are provided on the solid block and are inserted into the positioning plate through an interlocking manner to restrain the position. The two anti-slip blocks are connected by a connecting rod.

[0018] Compared with the prior art, the present invention has the following beneficial effects: 1. This invention improves the stamping structure by inserting the magnetic frame of the top cover and the edge restraining rod into the corner of the mold body and adsorbing them, thus firmly positioning the top cover at the upper origin of the mold body. Then, combined with the center restraint of the restraining body, the punch body of the stamping head can slide stably vertically up and down with the hydraulic press or mechanical press. This avoids the instability of the top cover and the displacement of the center position of the punch body due to machine shaking, which would prevent stable vertical stamping operations. As a result, it improves the stability of the stamping and forming of metal powder inside the mold body. Furthermore, the connecting parts at the upper end of the punch body can be firmly connected to the hydraulic press or mechanical press through the clamping groove, rebound block, and locking groove, avoiding shaking and automatic detachment caused by unstable connection.

[0019] 2. With the improvement of the restraining component, the contact wall and vertical cavity of the reinforcing frame can effectively limit the position of the punch body edge, so as to maintain stable vertical up and down movement. Then, the reinforcing frame can be effectively and firmly installed on the top cover by using the edge connecting layer and the reinforcing block. The four-way fixed restraint of the reinforcing block can avoid the failure of the fixed restraint due to positional misalignment. Then, the reinforcing block will be stably spliced ​​with the top cover and the reinforcing frame by the lower end insert and connecting block respectively. Finally, the internal thread groove and bolts are used to firmly fix it to prevent loosening, thereby improving the positional restraint stability of the punch body.

[0020] 3. The positioning plate at the connection point between the inlet pipe, outlet pipe, and mold body allows cold water to flow through the internal circulation channel. During the process, the sealing frame and the edge sealing of the rubber sheet reinforce the pipe, preventing loosening and instability caused by water pressure impact. It also prevents water leakage, thus improving the airtightness of the circulating cold water tank. The rubber sheet can be manually adjusted in position via the control block of the push rod, achieving a controllable state and facilitating disassembly. The solid block of the control block can be positioned by the anti-slip slider, preventing the rubber sheet from automatically rebounding due to continuous water flow impact, thereby effectively improving the positional stability of the rubber sheet. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of a water-cooled powder metallurgy mold.

[0022] Figure 2 This is a three-dimensional structural diagram of an improved stamping structure.

[0023] Figure 3 This is a three-dimensional structural diagram of an improved stamping head.

[0024] Figure 4 This is a schematic diagram of a three-dimensional structure of an improved restraint system.

[0025] Figure 5 This is a side view structural diagram of an improved reinforcement block.

[0026] Figure 6 This is a structural diagram showing a component at the connection point of a water inlet pipe, a water outlet pipe, and a heat absorption pipe of the mold body.

[0027] Figure 7 This is a cross-sectional structural diagram of an improved control block.

[0028] In the diagram: Positioning base-1, mold body-2, stamping structure-3, heat absorption pipe-4, water inlet pipe-5, water outlet pipe-6, cold water tank-7; Stamping head-31, restraining body-32, top cover-33, magnetic frame-34, restraining rod-35; Core rod-311, locking rod-312, punch body-313, connecting piece-314, locking sleeve-315, clamping groove-316, rebound block-317, locking groove-318; Vertical cavity-321, contact wall-322, reinforcing frame-323, connecting layer-324, reinforcing block-325; Insert block-3251, block body-3252, connecting block-3253, positioning block-3254, threaded groove-3255, bolt-3256; Positioning plate-51, clamping block-52, sealing frame-53, flow channel-54, rubber sheet-55, push rod-56, control block-57; Overlapping cavity-571, locking bolt-572, solid block-573, anti-slip block-574, connecting rod-575. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings: Example 1: Figures 1 to 5 As shown: This invention provides a water-cooled powder metallurgy mold. Its structure includes: a positioning base 1, a mold body 2, a stamping structure 3, a heat absorption pipe 4, a water inlet pipe 5, a water outlet pipe 6, and a cold water tank 7. The upper end of the positioning base 1 determines the position of the mold body 2 and the cold water tank 7. The upper end of the mold body 2 is covered by the stamping structure 3 and the edge is provided with a heat absorption pipe 4 connected to the water inlet pipe 5 and the water outlet pipe 6. The other end of the water inlet pipe 5 and the water outlet pipe 6 are connected to the cold water tank 7.

[0030] The stamping structure 3 is provided with a stamping head 31, which is embedded in the center of the restraining body 32 and passes through the center of the top cover 33. A magnetic frame 34 is provided at the edge of the top cover 33 and a restraining rod 35 is mounted thereon.

[0031] The punch head 31 is also provided with a mandrel 311. The upper end of the mandrel 311 is threaded to the lower end of the locking rod 312. The upper end of the locking rod 312 is connected to the center of the punch body 313. The upper end of the punch body 313 is connected to a connector 314 and a locking sleeve 315 is connected to the center of the connector 314. The punch body 313 is threaded to the upper end of the locking rod 312 of the mandrel 311. The edge of the punch body 313 has a clamping groove 316 and a rebound block 317 is provided inside. A locking groove 318 is opened at the position of the rebound block 317.

[0032] First, the magnetic frame 34 and the restraining rod 35 of the top cover 33 of the stamping structure 3 are positioned to cover the upper end of the mold body 2. Then, the restraining body 32 of the top cover 33 limits the edge of the punch body 313 of the stamping head 31, so that the punch body 313 is parallel to the interior of the mold body 2. Then, the punch body 313 is fixedly connected to the hydraulic press or mechanical press by the edge clamping groove 316 of the upper connecting piece 314, the rebound block 317, and the locking groove 318. At the same time, the lower core rod 311 is detachably threadedly connected to the punch body 312 through the locking rod 312.

[0033] The positioning base 1 is set in a parallel orientation and vertically positions the mold body 2 and the cold water tank 7. The upper end of the mold body 2 is parallel to the stamping structure 3. The heat absorption pipes 4 are distributed on the edge of the mold body 2 and the internal heat energy of the mold body 2 is absorbed through the cold water circulation movement of the water inlet pipe 5 and the water outlet pipe 6. The cold water tank 7 is equipped with a water pump and a cooler.

[0034] The stamping head 31 intersects the center of the top cover 33 via the restraining body 32. The magnetic frame 34 on the edge of the top cover 33 is square and matches the shape of the upper end of the mold body 2. The restraining rod 35 is a solid cylindrical shape and is set in a vertical position and inserted into the edge of the mold body 2.

[0035] The center of the mandrel 311 overlaps with the center of the upper locking rod 312. The connecting piece 314 of the punch body 313 is set in a vertical position. The inner wall of the locking sleeve 315 of the connecting piece 314 is provided with internal threads and is threadedly connected to the locking rod 312. The clamping groove 316 includes a rubber rebound block 317 and a circular locking groove 318, which are threadedly fixed to the working position of the hydraulic press or mechanical press.

[0036] The restraining body 32 is provided with a vertical cavity 321, which passes through the center of the contact wall 322 and the contact wall 322 is integrated with the reinforcing frame 323. The outer edge of the reinforcing frame 323 is provided with a connecting layer 324 to determine the position of the reinforcing block 325.

[0037] The contact wall 322 of the reinforcing frame 323 is polished and the vertical cavity 321 is square and matches the shape of the punch body 313. The connecting layer 324 has a connecting groove to determine the position of the reinforcing block 325. There are four reinforcing blocks 325 in total, which are distributed on the surface edge of the top cover 33.

[0038] The reinforcing block 325 is also provided with an insert block 3251. The upper end of the insert block 3251 is connected to a block body 3252. A connecting block 3253 is provided at the center of the surface of the block body 3252. The upper end of the block body 3252 is also connected to a positioning block 3254, and a threaded groove 3255 is opened in the center of the interior to allow the bolt 3256 to pass through and lock.

[0039] The insert 3251 is embedded in the surface edge of the top cover 33 by the block 3252, and the block 3252 is connected to the connecting layer 324 of the reinforcing frame 323 by the connecting block 3253. The center of the positioning block 3254 is penetrated by the threaded groove 3255 and locked to the surface of the top cover 33 by the bolt 3256.

[0040] The specific functions and operation procedures of this embodiment are as follows: In this invention, the water-cooled powder metallurgy mold can determine the positions of the mold body 2 and the cold water tank 7 through the positioning base 1. Then, the cold water tank 7 is connected to the heat absorption pipe 4 of the mold body 2 through the inlet pipe 5 and the outlet pipe 6. After the top stamping structure 3 of the mold body 2 is removed, metal powder can be introduced through a corresponding machine. Then, the top of the mold body 2 is covered again by the stamping structure 3. Subsequently, the stamping structure 3 is used to press the internal metal powder into shape by a hydraulic press or mechanical press, so that the metal powder forms a "green embryo" under pressure and high temperature. Then, the cold water tank 7 introduces cold water into the heat absorption pipe 4 through the inlet pipe 5. The heat absorption pipe 4 carries away the internal heat energy, while the outlet pipe 6 discharges hot water. By guiding the water into the cold water tank 7 for cooling, water cooling and recycling can be achieved, improving the stability of the "green blank" cooling. Furthermore, the top cover 33 of the stamping structure 3 can be magnetically attached to the upper edge of the mold body 2 via the edge magnetic frame 34. Simultaneously, the restraining rod 35 is inserted into the corner of the mold body 2, achieving a strong positional fixation effect and preventing misalignment during stamping. At the same time, the restraining body 32 at the center of the top cover 33 can position the stamping head 31, ensuring it remains vertically stable during operation. This avoids positional shifts and wobbling that could lead to inaccurate pressing centering. Finally, the punch body 313 of the stamping head 31 can be locked by the upper connecting piece 314. The sleeve 315 completes the fixed threaded connection with the locking rod 312 of the mandrel 311, allowing the mandrel 311 to drill holes in the "green blank" with a central hole. Then, the punch body 313 is firmly locked to the hydraulic press or mechanical press via the clamping groove 316 of the connecting piece 314 and the locking groove 318 of the rebound block 317, achieving stable operation and improving the accuracy and stability of metal powder pressing. Furthermore, the reinforcing frame 323 of the restraining body 32 provides movement space for the punch body 313 using the vertical cavity 321 of the contact wall 322. The reinforcing frame 323 then limits its edge position, ensuring overall positional accuracy and preventing deviation. Subsequently, the reinforcing frame 32... The external connecting layer 324 can achieve a firm positioning effect through the "+" fixed of the reinforcing block 325. For this purpose, after the insert block 3251 is embedded in the top cover 33, the connecting block 3253 is pushed into the connecting layer 324 by translation to achieve the edge support effect. Then, the bolt 3256 is vertically locked by the threaded groove 3255 in the positioning block 3254, so that it can be firmly locked on the top cover 33, which improves the positional accuracy of the reinforcing frame 323, prevents positional errors during use, and further improves the positional restraint stability of the punch body 313. Conversely, the threaded fixation can achieve the effect of easy disassembly.

[0041] Example 2: Figures 6 to 7 As shown: This invention provides a water-cooled powder metallurgy mold. Its structure includes a positioning plate 51 at the connection position between the water inlet pipe 5 and the water outlet pipe 6 and the mold body 2. The positioning plate 51 has clamping blocks 52 on its upper and lower edges. The clamping blocks 52 determine the position of the sealing frame 53. The sealing frame 53 has a flow groove 54 at its center. Rubber sheets 55 are provided at the left and right edges of the flow groove 54. One end of the rubber sheet 55 is connected to a push rod 56 and the other end of the push rod 56 is connected to a control block 57.

[0042] The clamping block 52 of the positioning plate 51 is set in a symmetrical position, and the sealing frame 53 at the position of the clamping block 52 is made of rubber and clamps and covers one edge of the water inlet pipe 5 and the water outlet pipe 6. The flow channel 54 is connected to the heat absorption pipe 4 through the inside of the positioning plate 51. The rubber sheet 55 in the flow channel 54 slides laterally through the push rod 56 and the control block 57 to clamp and fix one end of the water inlet pipe 5 and the water outlet pipe 6 for a second time.

[0043] The control block 57 is further provided with an overlapping cavity 571. The overlapping cavity 571 is equipped with a locking bolt 572 and is located at the center of the side of the solid block 573. The surface of the solid block 573 is also equipped with an anti-slip block 574, and one end of the anti-slip block 574 is connected to a connecting rod 575.

[0044] The overlapping frame 571 allows one end of the push rod 56 to be embedded and locked by the locking bolt 572. The solid block 573 is provided with two anti-slip blocks 574, which are inserted into the positioning plate 51 through a through-hole method to restrain the position. The two anti-slip blocks 574 are connected by a connecting rod 575.

[0045] The specific functions and operation procedures of this embodiment are as follows: In this invention, the positioning plate 51 at the connection point between the inlet pipe 5, the outlet pipe 6, and the heat absorption pipe 4 of the mold body 2 can determine the position of the sealing frame 53 through the clamping block 52. Then, the sealing frame 53 can form a communication state with the heat absorption pipe 4 through the flow groove 54. Therefore, after the inlet pipe 5 and the outlet pipe 6 are inserted into the flow groove 54, they are first covered and clamped by the edge of the sealing frame 53 for positioning. Then, the rubber sheet 55 can be pushed by the push rod 56 and the control block 57 to achieve a secondary fixing effect. Therefore, the airtightness of the connection between the inlet pipe 5 and the outlet pipe 6 can be improved, preventing water leakage. Subsequently, the control block... The solid block 573 of 57 can be connected to one end of the push rod 56 through the overlapping cavity 571 and the locking bolt 572, so that it can stably push the rubber sheet 55 through the push rod 56. After the rubber sheet 55 completes the overlapping contact with the edge of the water inlet pipe 5 and the water outlet pipe 6, the surface of the solid block 573 will be driven by the connecting rod 575 to penetrate the two anti-slip blocks 574, so that the anti-slip blocks 574 will be embedded in the edge position of the positioning plate 51 and the mold body 2, preventing the rubber sheet 55 from falling off, thereby improving the airtight stability of the circulating flow of cold water and hot water and preventing water leakage.

[0046] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solutions described in this invention, or by designing similar technical solutions by those skilled in the art under the inspiration of the technical solutions described in this invention, falls within the protection scope of this invention.

Claims

1. A water-cooled powder metallurgy mold, the structure of which includes: The positioning base (1), mold body (2), stamping structure (3), heat absorption pipe (4), water inlet pipe (5), water outlet pipe (6), and cold water tank (7) are provided. The upper end of the positioning base (1) determines the position of the mold body (2) and the cold water tank (7). The upper end of the mold body (2) is covered by the stamping structure (3) and the edge is provided with heat absorption pipe (4) connected to the water inlet pipe (5) and the water outlet pipe (6). The other end of the water inlet pipe (5) and the water outlet pipe (6) are connected to the cold water tank (7). The feature is that: The stamping structure (3) is provided with a stamping head (31), which is embedded in the center of the restraining body (32) and passes through the center of the top cover (33). A magnetic frame (34) is provided at the edge of the top cover (33) and a restraining rod (35) is mounted thereon. The punch head (31) is also provided with a mandrel (311). The upper end of the mandrel (311) is threaded to the lower end of the locking rod (312). The upper end of the locking rod (312) is connected to the center of the punch body (313). The upper end of the punch body (313) is connected to a connector (314), and the center of the connector (314) is connected to a locking sleeve (315). The punch body (313) and the upper end of the locking rod (312) of the mandrel (311) are threaded together. The edge of the punch body (313) has a clamping groove (316) and a rebound block (317) is provided inside. The position of the rebound block (317) has a locking groove (318). First, the magnetic frame (34) and restraining rod (35) of the top cover (33) of the stamping structure (3) are positioned on the upper end of the mold body (2). Then, the restraining body (32) of the top cover (33) limits the edge of the punch body (313) of the stamping head (31), so that the punch body (313) and the mold body (2) are parallel to each other. Then, the punch body (313) is fixedly connected to the hydraulic press or mechanical press by the edge clamping groove (316) of the upper connecting piece (314), the rebound block (317), and the locking groove (318). At the same time, the lower end core rod (311) is detachably threadedly connected to the punch body (312) through the locking rod (312).

2. The water-cooled powder metallurgy mold according to claim 1, characterized in that: The positioning base (1) is set in a parallel orientation and vertically positions the mold body (2) and the cold water tank (7). The upper end of the mold body (2) is parallel to the stamping structure (3). The heat absorption pipe (4) is distributed on the edge of the mold body (2) and the heat energy inside the mold body (2) is absorbed through the cold water circulation movement of the water inlet pipe (5) and the water outlet pipe (6). The cold water tank (7) is equipped with a water pump and a cooler.

3. A water-cooled powder metallurgy mold according to claim 1, characterized in that: The stamping head (31) intersects the center of the top cover (33) through the restraining body (32). The magnetic frame (34) on the edge of the top cover (33) is square and matches the shape of the upper end of the mold body (2). The restraining rod (35) is a solid cylindrical shape and is set in a vertical position and inserted into the edge of the mold body (2).

4. A water-cooled powder metallurgy mold according to claim 1, characterized in that: The center of the mandrel (311) overlaps with the center of the upper locking rod (312). The connecting part (314) of the punch body (313) is set in a vertical position. The inner wall of the locking sleeve (315) of the connecting part (314) is provided with an internal thread to connect with the locking rod (312). The clamping groove (316) contains a rubber rebound block (317) and a circular locking groove (318) to be threadedly fixed to the working position of the hydraulic press or mechanical press.

5. A water-cooled powder metallurgy mold according to claim 1, characterized in that: The restraining body (32) is provided with a vertical cavity (321), which penetrates the center of the contact wall (322) and the contact wall (322) is integrated with the reinforcing frame (323). The outer edge of the reinforcing frame (323) is provided with a connecting layer (324) to determine the position of the reinforcing block (325). The contact wall (322) of the reinforcing frame (323) is polished and the vertical cavity (321) is square and matches the shape of the punch body (313). The connecting layer (324) has a connecting groove to determine the position of the reinforcing block (325). There are four reinforcing blocks (325) in total, which are distributed on the surface edge of the top cover (33).

6. A water-cooled powder metallurgy mold according to claim 5, characterized in that: The reinforcing block (325) is also provided with an insert block (3251), the upper end of the insert block (3251) is connected to a block body (3252), a connecting block (3253) is provided at the center of the surface of the block body (3252), and a positioning block (3254) is also connected to the upper end of the block body (3252) and a threaded groove (3255) is opened in the center of the interior to allow the bolt (3256) to pass through and lock. The insert (3251) is embedded in the surface edge of the top cover (33) through the block (3252), and the block (3252) is connected to the connecting layer (324) of the reinforcing frame (323) through the connecting block (3253). The center of the positioning block (3254) is penetrated by the threaded groove (3255) and locked to the surface of the top cover (33) by the bolt (3256).

7. A water-cooled powder metallurgy mold according to claim 1, characterized in that: A positioning plate (51) is provided at the connection position between the water inlet pipe (5) and the water outlet pipe (6) and the mold body (2). A clamping block (52) is provided on the upper and lower edges of the surface of the positioning plate (51). The position of the sealing frame (53) is determined by the clamping block (52). A flow groove (54) is provided in the center of the sealing frame (53). A rubber sheet (55) is provided on the left and right edges of the flow groove (54). A push rod (56) is connected to one end of the rubber sheet (55), and a control block (57) is connected to one end of the push rod (56). The clamping block (52) of the positioning plate (51) is set in a symmetrical position, and the sealing frame (53) of the clamping block (52) is made of rubber and clamps and covers one edge of the water inlet pipe (5) and the water outlet pipe (6). The flow channel (54) is connected to the heat absorption pipe (4) through the inside of the positioning plate (51). The rubber sheet (55) in the flow channel (54) slides laterally through the push rod (56) and the control block (57) to clamp and fix one end of the water inlet pipe (5) and the water outlet pipe (6) for a second time.

8. A water-cooled powder metallurgy mold according to claim 7, characterized in that: The control block (57) is also provided with an overlapping cavity (571), the overlapping cavity (571) is equipped with a locking bolt (572) and is located at the center of the side of the solid block (573), the surface of the solid block (573) is also equipped with an anti-slip block (574), and one end of the anti-slip block (574) is connected to a connecting rod (575). The overlapping frame (571) allows one end of the push rod (56) to be embedded and locked by the locking bolt (572). Two anti-slip blocks (574) are provided on the solid block (573) and are inserted into the positioning plate (51) by interlocking to restrain the position. The two anti-slip blocks (574) are connected by the connecting rod (575).

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