Stamping die for double-layer structure of liquid cooling plate

Abstract

The utility model relates to the technical field of stamping dies, and discloses a liquid cooling plate double-layer structure stamping die which comprises a bottom die and a top die, a support is fixed on the bottom die, an air injection pipe is fixed at one end, far away from the bottom die, of the support, a plurality of air injection openings are formed in the air injection pipe, two air supply structures are arranged on the bottom die, and the two air supply structures are arranged on the top die. The two air supply structures are arranged on the two sides of the bottom die correspondingly and communicate with the air spraying pipe. Through the continuous cooling effect, the temperature of the die and the temperature of a workpiece in the stamping process are effectively controlled, the problems of workpiece size deviation, poor shape and the like caused by thermal deformation and thermal fatigue are reduced, the stability and accuracy of stamping quality are guaranteed, the stamping quality is guaranteed through the effective cooling design, and the production efficiency is improved. And the maintenance period and the downtime of the die are reduced, and the production efficiency and the working continuity are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of stamping dies, in particular to a stamping die with a double-layer structure of a liquid cooling plate. Background Art

[0002] The double-layer structure stamping die of the liquid cooling plate is a tooling equipment used to process the double-layer structure liquid cooling plate. This die is usually composed of an upper die and a lower die, where the upper die and the lower die correspond to the two layers of the double-layer structure plate respectively. During the stamping process, the double-layer structure of the liquid cooling plate will complete the corresponding stamping deformation according to the design and setting of the die, and finally form the required workpiece shape.

[0003] The liquid cooling plate stamping mold in the prior art does not have the function of cooling. Heat is easily generated during the high-frequency stamping process of the mold on the workpiece. High temperature will cause thermal expansion of the mold and workpiece materials, which may cause dimensional deviation and deformation of the workpiece, affecting the quality and accuracy of the workpiece. At the same time, the mold material is prone to fatigue under high temperature and high pressure, reducing the service life of the mold.

[0004] Therefore, it is necessary to design a double-layer structure stamping die for a liquid cooling plate to solve the above problems. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a double-layer structure stamping die for a liquid cooling plate.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A double-layer structure stamping die for a liquid cooling plate comprises a bottom die and a top die, wherein a bracket is fixed on the bottom die, an air jet is fixed on one end of the bracket away from the bottom die, a plurality of air jet ports are provided on the air jet, and two air supply structures are arranged on the bottom die, respectively, and the two air supply structures are connected to the air jet.

[0008] As a preferred technical solution of the utility model, the air supply structure includes a sealing cylinder, a sliding plug, a spring, a connecting rod, two air pipes and two one-way valves. The sealing cylinder is fixed on the bottom mold, the sliding plug seal is slidably connected to the inner surface of the sealing cylinder, one end of the spring is connected to the inner surface of the sealing cylinder, and the other end is connected to the sliding plug, one end of the connecting rod is fixedly connected to the sliding plug, and the other end of the connecting rod extends to the outside of the sealing cylinder and is fixedly connected to the top mold, one end of the two air pipes are connected to the sealing cylinder, and the two one-way valves are respectively installed on the two air pipes, and the other end of one of the air pipes is connected to the injection pipe.

[0009] As a preferred technical solution of the utility model, a cooling assembly is provided on the bottom mold, and the cooling assembly includes a cooling box, a coolant and a cooling coil. The cooling box is fixed on the bottom mold, the coolant is accumulated inside the cooling box, the cooling coil is fixed inside the cooling box, and the cooling coil is immersed in the coolant, one end of the cooling coil extends to the outside of the cooling box, and the other end of the cooling coil is connected to the other end of another air pipe.

[0010] As a preferred technical solution of the utility model, the cooling coil is made of pure copper material and is spiral-shaped.

[0011] As a preferred technical solution of the utility model, the two air pipes on one of the sealing cylinders are arranged at the top of the sealing cylinder, and the two air pipes on the other sealing cylinder are arranged at the bottom of the sealing cylinder.

[0012] As a preferred technical solution of the utility model, a plurality of the air jets are evenly distributed on the air jet pipe.

[0013] The utility model has the following beneficial effects:

[0014] 1. Through continuous cooling, the temperature of the die and workpiece during the stamping process is effectively controlled, reducing the problems of workpiece size deviation and poor shape caused by thermal deformation and thermal fatigue, ensuring the stability and accuracy of stamping quality. The effective cooling design not only ensures the stamping quality, but also reduces the die maintenance cycle and downtime, and improves production efficiency and work continuity;

[0015] 2. Through the alternating air supply design, the gas is continuously ejected through the air jet, avoiding the window period of the air jet action, continuously cooling the bottom mold and the top mold, and effectively avoiding the problem of excessive temperature of the mold and workpiece due to the heat generated during the stamping process;

[0016] 3. A cooling component is set on the bottom mold. The gas passes through the cooling coil before entering the sealing tube. The coolant cools the gas. The cooling coil made of pure copper has good thermal conductivity. The spiral structure prolongs the residence time of the gas in the cooling coil, thereby improving the heat dissipation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of a double-layer structure stamping die for a liquid cooling plate proposed in the utility model;

[0018] Figure 2 This is a side structural schematic diagram of a double-layer structure stamping die for a liquid cooling plate proposed by the utility model.

[0019] In the figure: 1 bottom mold, 2 top mold, 3 bracket, 4 injection pipe, 5 injection port, 61 sealing cylinder, 62 sliding plug, 63 spring, 64 connecting rod, 65 air pipe, 66 one-way valve, 71 cooling box, 72 coolant, 73 cooling coil, 8 semiconductor refrigeration plate. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Reference Figure 1-2 A double-layer structure stamping die for a liquid cooling plate, comprising a bottom die 1 and a top die 2, characterized in that a bracket 3 is fixed on the bottom die 1, an air jet 4 is fixed on one end of the bracket 3 away from the bottom die 1, a plurality of air jets 5 are opened on the air jet 4, and the plurality of air jets 5 are evenly distributed on the air jet 4, two air supply structures are arranged on the bottom die 1, the two air supply structures are respectively arranged on both sides of the bottom die 1, and the two air supply structures are connected to the air jet 4;

[0022] The air supply structure includes a sealing cylinder 61, a sliding plug 62, a spring 63, a connecting rod 64, two air pipes 65 and two one-way valves 66. The sealing cylinder 61 is fixed on the bottom mold 1, and the sliding plug 62 is sealingly and slidably connected to the inner surface of the sealing cylinder 61. One end of the spring 63 is connected to the inner surface of the sealing cylinder 61, and the other end is connected to the sliding plug 62. One end of the connecting rod 64 is fixedly connected to the sliding plug 62, and the other end of the connecting rod 64 extends to the outside of the sealing cylinder 61 and is fixedly connected to the top mold 2. One end of the two air pipes 65 is connected to the sealing cylinder 61, and the two one-way valves 66 are respectively installed on the two air pipes 65, and the other end of one of the air pipes 65 is connected to the injection pipe 4. The two air pipes 65 on one of the sealing cylinders 61 are arranged at the top of the sealing cylinder 61, and the two air pipes 65 on the other sealing cylinder 61 are arranged at the bottom of the sealing cylinder 61. The alternating air supply of the two air supply structures enables the gas to pass through a plurality of injection pipes uninterruptedly. The bottom mold 1 is provided with a cooling assembly, which includes a cooling box 71, a coolant 72 and a cooling coil 73. The cooling box 71 is fixed on the bottom mold 1, and the coolant 72 is accumulated in the cooling box 71. The cooling coil 73 is fixed in the cooling box 71, and the cooling coil 73 is immersed in the coolant 72. One end of the cooling coil 73 extends to the outside of the cooling box 71, and the other end of the cooling coil 73 is connected to the other end of another air pipe 65. The cooling coil 73 is made of pure copper material, and the cooling coil 73 is spiral. The pure copper material has good thermal conductivity, which can ensure the cooling effect of the coolant 72 on the gas. The cooling coil 73 has a spiral structure. This design can extend the flow time of the gas in the cooling coil 73, and further ensure the cooling effect of the coolant 72 on the gas.

[0023] The specific working principle of the utility model is as follows:

[0024] When the double-layer structure stamping die of the liquid cooling plate proposed by the utility model is in use, in the initial state, under the action of the two springs 63, the two sliding plugs 62 are respectively located at the top of the two sealing cylinders 61. During the stamping process, the top mold 2 periodically descends to cooperate with the bottom mold 1 to complete the stamping of the workpiece. In this process, when the top mold 2 descends, the top mold 2 will drive the two connecting rods 64 to move downward, so that the two sliding plugs 62 move downward. Since the two one-way valves 66 on the same sealing cylinder 61 have opposite flow limiting directions, specifically, one of the one-way valves 66 limits the airflow to only enter the interior of the sealing cylinder 61, and the other one-way valve 66 limits the airflow to only flow out of the sealing cylinder 61, and the two air pipes 65 on one of the sealing cylinders 61 are arranged at the top of the sealing cylinder 61, and the two air pipes 65 on the other sealing cylinder 61 are arranged at the bottom of the sealing cylinder 61. Therefore, when the two sliding plugs 62 descend, One sliding plug 62 can perform a vacuum action, and the other sliding plug 62 can perform an exhaust action. At this time, the sealing cylinder 61 that performs the exhaust action can supply air to the inside of the injection tube 4 through the corresponding air pipe 65. When the top mold 2 moves upward, the two sliding plugs 62 will move upward under the action of the two springs 63, and the sealing cylinder 61 that previously exhausted air will switch to vacuuming, while the sealing cylinder 61 that previously exhausted air will exhaust air. In summary, along with the up and down movement of the top mold 2, the two sealing cylinders 61 can alternately supply air to the inside of the injection tube 4, so that the gas is continuously ejected through the plurality of injection ports 5. The gas ejected from the plurality of injection ports 5 can cool down the bottom mold 1 and the top mold 2, avoiding the temperature of the bottom mold 1 and the top mold 2 being too high. It is worth noting that the alternating air supply of the two air supply structures allows the gas to be continuously ejected through the plurality of injection ports 5, avoiding the existence of a window period in the injection action, and ensuring the cooling effect of the gas on the bottom mold 1 and the top mold 2.

[0025] A cooling assembly is also provided on the bottom mold 1. Before the gas enters the interior of the sealing tube 61, it first flows through the cooling coil 73. In this process, the coolant 72 can cool the gas flowing in the cooling coil 73. This design makes the gas ejected through the jet nozzle 5 have a lower temperature, further ensuring the cooling effect of the gas on the bottom mold 1 and the top mold 2. In addition, the cooling coil 73 is made of pure copper material, which has good thermal conductivity and can ensure the cooling effect of the coolant 72 on the gas. The cooling coil 73 has a spiral structure. This design can extend the flow time of the gas in the cooling coil 73, further ensuring the cooling effect of the coolant 72 on the gas.

[0026] A semiconductor refrigeration sheet 8 is also installed inside the cooling box 71. When the semiconductor refrigeration sheet 8 is powered on, it can cool the coolant 72, so as to ensure the cooling effect of the coolant 72 on the gas. The staff can regularly power on the semiconductor refrigeration sheet 8 to regularly cool the coolant 72. The specific structure and working principle of the semiconductor refrigeration sheet 8 are not an innovative part of the present technical solution, and are not shown in the figure, so they will not be elaborated here.

[0027] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A liquid cooling plate double-layer structure stamping die, comprising a bottom die (1) and a top die (2), characterized in that: A bracket (3) is fixed on the bottom mold (1); an air jet pipe (4) is fixed on one end of the bracket (3) away from the bottom mold (1); a plurality of air jet ports (5) are provided on the air jet pipe (4); two air supply structures are provided on the bottom mold (1); the two air supply structures are respectively provided on two sides of the bottom mold (1); and both of the two air supply structures are connected to the air jet pipe (4).

2. A liquid cooling plate double-layer structure stamping die according to claim 1, characterized in that: The air supply structure comprises a sealing cylinder (61), a sliding plug (62), a spring (63), a connecting rod (64), two air pipes (65) and two one-way valves (66); the sealing cylinder (61) is fixed on the bottom mold (1); the sliding plug (62) is sealingly and slidably connected to the inner surface of the sealing cylinder (61); one end of the spring (63) is connected to the inner surface of the sealing cylinder (61) and the other end is connected to the sliding plug (62); one end of the connecting rod (64) is fixedly connected to the sliding plug (62); the other end of the connecting rod (64) extends to the outside of the sealing cylinder (61) and is fixedly connected to the top mold (2); one end of the two air pipes (65) is connected to the sealing cylinder (61); the two one-way valves (66) are respectively installed on the two air pipes (65); the other end of one of the air pipes (65) is connected to the injection pipe (4).

3. A liquid cooling plate double-layer structure stamping die according to claim 2, characterized in that: The bottom mold (1) is provided with a cooling assembly, which comprises a cooling box (71), a cooling liquid (72) and a cooling coil (73); the cooling box (71) is fixed on the bottom mold (1); the cooling liquid (72) is accumulated in the interior of the cooling box (71); the cooling coil (73) is fixed in the interior of the cooling box (71), and the cooling coil (73) is immersed in the interior of the cooling liquid (72); one end of the cooling coil (73) extends to the outside of the cooling box (71); and the other end of the cooling coil (73) is connected to the other end of another air pipe (65).

4. The double-layer structure stamping die of a liquid cooling plate according to claim 3, characterized in that: The cooling coil (73) is made of pure copper material and is in a spiral shape.

5. The double-layer structure stamping die of a liquid cooling plate according to claim 2, characterized in that: The two air pipes (65) on one of the sealing cylinders (61) are arranged at the top of the sealing cylinder (61), and the two air pipes (65) on the other sealing cylinder (61) are arranged at the bottom of the sealing cylinder (61).

6. The double-layer structure stamping die of a liquid cooling plate according to claim 1, characterized in that: The plurality of air jet ports (5) are evenly distributed on the air jet pipe (4).

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