Die machining method

Abstract

The invention discloses a mold processing method, and relates to the technical field of mold processing, and the mold processing method comprises the following steps: roughing a mold material to form a mold, processing a liquid flow path on the mold, fixing the mold, and carrying out finish machining on the mold. And in the mold finish machining process, heat exchange liquid at the first preset temperature is introduced into the liquid flow path in real time so that the heat exchange liquid can flow through the liquid flow path. The heat exchange liquid at the first preset temperature is introduced into the liquid flow path in real time in the finish machining process of the mold so that the heat exchange liquid can flow through the liquid flow path, and the mold can be heated in the finish machining process of the mold so that the machining temperature of the mold can be consistent with the use temperature of the mold; therefore, the situation that the size of the mold during use is larger than the size of the mold after machining due to thermal expansion and cold contraction can be avoided, the size precision of the mold is improved, the consistency of the size of the mold during machining and the size of the mold during use can be kept, and the product quality of the mold is improved.

Description

Technical Field

[0001] The invention relates to the technical field of mold processing, and in particular to a mold processing method. Background Art

[0002] In the related technology, the hot pressing mold for automobile interior covering is cold processed. The actual mold needs to be heated to a certain temperature when in use. Affected by thermal expansion and contraction, the size of the mold when in use will be larger than the size after processing, which will affect the production and use of the mold. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the present invention is to provide a mold processing method, which can avoid the size of the mold in use being larger than the size after processing due to thermal expansion and contraction, improve the dimensional accuracy of the mold, and then maintain the consistency of the size of the mold in processing and in use, so as to improve the product quality of the mold.

[0004] The mold processing method according to an embodiment of the present invention includes: roughing the mold material to form a mold;

[0005] Processing liquid flow paths on the mold;

[0006] Fix the mold;

[0007] The mold is finely processed, and during the fine processing of the mold, a heat exchange liquid with a first preset temperature is introduced into the liquid flow path in real time to make the heat exchange liquid flow through the liquid flow path.

[0008] According to the mold processing method of an embodiment of the present invention, the mold is heated during the finishing process of the mold so that the processing temperature of the mold is consistent with the use temperature of the mold, thereby avoiding the size of the mold when in use being larger than the size after processing due to thermal expansion and contraction, thereby improving the dimensional accuracy of the mold, and further maintaining the consistency of the size of the mold during processing and the size of the mold in use, thereby improving the product quality of the mold.

[0009] According to some embodiments of the present invention, processing a liquid flow path on a mold includes:

[0010] A plurality of sub-liquid flow paths connected in series are processed on the mold to form a liquid flow path.

[0011] The size when in use will be larger than the size after processing. A plurality of sub-liquid flow paths are parallel to each other, and any two adjacent sub-liquid flow paths are spaced apart.

[0012] According to some embodiments of the present invention, the spacing distance between any two adjacent sub-liquid flow paths is greater than or equal to 50 mm and less than or equal to 200 mm.

[0013] According to some embodiments of the present invention, one of the two sub-liquid flow paths located at the end is a liquid inlet flow path, and the other is a liquid outlet flow path.

[0014] According to some embodiments of the present invention, along the radial direction of the sub-liquid flow path, the distance between the edge of the sub-liquid flow path and the corresponding surface of the mold is greater than or equal to 20 mm and less than or equal to 30 mm.

[0015] According to some embodiments of the present invention, the mold is finely processed, and during the fine processing of the mold, a heat exchange liquid at a first preset temperature is introduced into the liquid flow path in real time so that the heat exchange liquid flows through the liquid flow path, including:

[0016] During the finishing process of the mold, a milling fluid at a second preset temperature is sprayed onto the mold in real time, and the first preset temperature is equal to the second preset temperature.

[0017] According to some embodiments of the present invention, the inner diameter of the liquid flow path is greater than or equal to 16 mm.

[0018] According to some embodiments of the present invention, the mold is finely processed, and during the fine processing of the mold, a heat exchange liquid at a first preset temperature is introduced into the liquid flow path in real time so that the heat exchange liquid flows through the liquid flow path, including:

[0019] The liquid flow path is connected to the mold temperature controller so that the heat exchange liquid flows through the liquid flow path.

[0020] According to some embodiments of the present invention, the first preset temperature is greater than or equal to 80°C and less than or equal to 100°C.

[0021] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0023] Figure 1 is a flow chart of a mold processing method according to an embodiment of the present invention;

[0024] Figure 2 This is a schematic structural diagram of a mold after roughing according to an embodiment of the present invention;

[0025] Figure 3 is a schematic structural diagram of a processing liquid flow path in a mold according to an embodiment of the present invention;

[0026] Figure 4 It is a schematic diagram of a mold and a mold temperature controller after being connected according to an embodiment of the present invention.

[0027] Reference numerals:

[0028] Mould 100;

[0029] Liquid flow path 10; sub-liquid flow path 11; liquid inlet flow path 12; liquid outlet flow path 13;

[0030] Mold temperature controller 20. DETAILED DESCRIPTION

[0031] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0032] like Figure 2-Figure 4 FIG. 1 is a schematic diagram of the structure of the mold 100 of the present application during the processing. Figure 2 The figure shows the schematic diagram of the structure of the mold material being roughened to form the mold. Figure 3 As shown, a plurality of sub-liquid flow paths 11 connected in series are processed on the mold 100 to form a liquid flow path 10, and any two adjacent sub-liquid flow paths 11 are arranged parallel to each other and spaced apart. One of the two sub-liquid flow paths 11 at the end of the mold 100 is a liquid inlet flow path 12, and the other is a liquid outlet flow path 13. Figure 4 As shown, the liquid inlet flow path 12 and the liquid outlet flow path 13 are both connected to the mold temperature controller 20, so that the constant temperature heat exchange liquid circulates through the liquid flow path 10, which can ensure that the heat exchange liquid maintains a uniform and continuous flow in the entire liquid flow path 10, thereby achieving a uniform heating effect. The uniform temperature distribution can reduce the deformation and cracks of the mold 100 caused by excessive local thermal stress, thereby extending the service life of the mold 100.

[0033] Furthermore, the spacing distance between any two adjacent sub-liquid flow paths 11 can be greater than or equal to 50 mm and less than or equal to 200 mm, which not only helps to reduce the flow resistance of the heat exchange liquid in the sub-liquid flow path 11, improve the circulation efficiency of the heat exchange liquid inside the mold 100, improve the uniformity of heat distribution, and quickly balance the temperature difference inside the mold 100, but also ensure the structural strength of the mold 100, reduce the risk of thermal stress and deformation of the mold 100, and thus can effectively improve the product quality of the mold 100.

[0034] Along the radial direction of the sub-liquid flow path 11, the spacing distance between the edge of the sub-liquid flow path 11 and the corresponding surface of the mold 100 can be greater than or equal to 20 mm and less than or equal to 30 mm. The heat exchange liquid can heat the mold 100 evenly and effectively to avoid uneven heating of the corresponding surface of the mold 100. It can also avoid the edge of the sub-liquid flow path 11 being too close to the corresponding surface of the mold 100, which may cause the structural strength of the mold 100 to decrease. It can effectively avoid local stress concentration on the corresponding surface of the mold 100 to cause deformation, cracks and other damages, thereby improving the durability of the mold 100.

[0035] The inner diameter of the liquid flow path 10 can be greater than or equal to 16 mm, which can reduce the flow resistance of the heat exchange liquid in the liquid flow path 10, thereby improving the flow efficiency of the heat exchange liquid and helping to enhance the heat dissipation effect. Efficient heat transfer also helps to quickly balance the temperature difference inside the mold 100, so that the mold 100 can maintain a constant temperature during the finishing process, further reducing the risk of thermal stress and deformation of the mold 100.

[0036] Reference below Figure 1-Figure 4 A mold processing method according to an embodiment of the present invention is described.

[0037] The mold processing method includes the following steps:

[0038] S1, roughing the mold material to form a mold.

[0039] Among them, mold roughing refers to the process of quickly removing excess material from the mold blank through mechanical processing and other means during the mold manufacturing process to make it initially formed and provide a basis for the subsequent fine processing of the mold. The main purpose of roughing is to improve processing efficiency, shorten production cycle, and ensure the accuracy and quality stability of the mold.

[0040] S2, processing the liquid flow path on the mold.

[0041] Among them, by processing the liquid flow path in the mold, the heat exchange liquid can be circulated in the mold to heat or cool the mold. The liquid flow path should be evenly distributed in the key parts of the mold to ensure that the heat can be effectively and evenly transmitted, and that the mold material can be effectively and evenly distributed. The liquid flow path can adopt the traditional straight line or simple bending flow path, or it can create a complex, conformal flow path, such as a spiral, a dendrite, or a flow path that fits closely with the mold cavity contour. The appropriate liquid flow path shape and direction can be selected according to factors such as the mold material, working temperature and pressure.

[0042] It can be explained that the present application is explained by taking the example of processing a liquid flow path in a mold so that a heat exchange liquid can flow in the mold to heat the mold.

[0043] S3, fix the mold.

[0044] Among them, the mold can be fixed on the CNC machine tool. The mold is firmly installed on the CNC machine tool through positioning and clamping devices. The mold can be fixed on the CNC machine tool through mechanical equipment such as spring clamp clamping, hydraulic clamping, vacuum clamping and electromagnetic clamping. It is necessary to ensure that the mold position is stable and the vibration is small during the processing process, and to avoid excessive clamping deformation of the mold, so as to facilitate the later finishing of the mold.

[0045] It can be explained that the mold can also be fixed on other equipment, which can be reasonably selected according to the actual material and processing technology of the mold.

[0046] S4, finishing the mold, and during the finishing process of the mold, introducing a heat exchange liquid at a first preset temperature into the liquid flow path in real time so that the heat exchange liquid flows through the liquid flow path.

[0047] Among them, finishing the mold can reduce the surface roughness of the mold, improve the dimensional accuracy and geometric accuracy of the mold, and finishing can reduce the wear and deformation of the mold during use, thereby extending its service life. During the finishing process of the mold, a heat exchange liquid of a first preset temperature is introduced into the liquid flow path in real time to allow the heat exchange liquid to flow through the liquid flow path. The temperature of the mold can be accurately controlled by heat exchange between the heat exchange liquid and the mold, so that the processing temperature of the mold is consistent with the use temperature of the mold, thereby avoiding the size of the mold being larger than the size after processing due to thermal expansion and contraction, improving the dimensional accuracy of the mold, and then maintaining the consistency of the size of the mold during processing and the size of the mold during use, so as to improve the product quality of the mold.

[0048] Specifically, the mold material is first roughened to form the mold, and then a liquid flow path is machined on the mold. The mold is then fixed and then fine-machined. During the fine-machined process of the mold, a heat exchange liquid at a first preset temperature is introduced into the liquid flow path in real time to allow the heat exchange liquid to flow through the liquid flow path. The heat exchange liquid at the first preset temperature flowing through the liquid flow path can exchange heat with the mold to heat the mold, thereby making the processing temperature of the mold consistent with the use temperature of the mold, thereby avoiding the size of the mold being larger than the size after processing due to thermal expansion and contraction, thereby improving the dimensional accuracy of the mold, and thereby maintaining the consistency between the size of the mold during processing and the size of the mold during use, thereby improving the product quality of the mold.

[0049] Therefore, through the mold processing method of the present application, the mold can be heated during the mold finishing process so that the processing temperature of the mold is consistent with the use temperature of the mold, thereby avoiding the size of the mold being larger during use than the size after processing due to thermal expansion and contraction, thereby improving the dimensional accuracy of the mold, and then maintaining the consistency of the size of the mold during processing and the size during use, thereby improving the product quality of the mold.

[0050] According to some embodiments of the present invention, Figure 3 and Figure 4 As shown, processing a liquid flow path on a mold includes: processing a plurality of sub-liquid flow paths connected in series on the mold to form a liquid flow path.

[0051] Among them, processing multiple sub-liquid flow paths in series on the mold to form a liquid flow path can ensure that the heat exchange liquid maintains a uniform and continuous flow in the entire liquid flow path, thereby achieving a uniform heating effect. The uniform temperature distribution can reduce the deformation and cracks of the mold caused by excessive local thermal stress, thereby extending the service life of the mold.

[0052] In some embodiments of the present application, there may be two, three, four, etc. sub-liquid flow paths, but the present invention is not limited thereto. There may also be other numbers of sub-liquid flow paths. The number of sub-liquid flow paths may be reasonably set according to the size of the mold, as long as a plurality of sub-liquid flow paths connected in series are processed on the mold to form a liquid flow path.

[0053] According to some embodiments of the present invention, Figure 3 and Figure 4 As shown, the plurality of sub-liquid flow paths are parallel to each other, and any two adjacent sub-liquid flow paths are spaced apart.

[0054] Among them, multiple sub-liquid flow paths are parallel to each other, and any two adjacent sub-liquid flow paths are spaced apart, which can make it difficult for the heat exchange liquid to generate turbulence or dead corners during the flow process, and can transfer heat more evenly, which helps to improve the efficiency of heat transfer. The parallel and spaced-apart sub-liquid flow path layout reduces fluid resistance, allowing the heat exchange liquid to flow more smoothly, thereby accelerating the heat transfer rate. Efficient heat transfer also helps to quickly balance the temperature difference inside the mold, so that the mold can maintain a constant temperature as a whole during the finishing process, further reducing the risk of thermal stress and deformation of the mold.

[0055] The parallel and spaced sub-liquid flow path layout also reduces the accumulation of dirt and impurities in the sub-liquid flow path, making cleaning easier and more efficient. In addition, this design also helps to inspect and maintain the integrity of the liquid flow path, ensuring the normal operation of the heating system.

[0056] According to some embodiments of the present invention, Figure 3 As shown, the spacing distance between any two adjacent sub-liquid flow paths is greater than or equal to 50 mm and less than or equal to 200 mm.

[0057] Among them, the spacing distance between any two adjacent sub-liquid flow paths can be H, and 50mm≤H≤200mm, that is, the spacing distance H between any two adjacent sub-liquid flow paths can be any value between 50mm-200mm. In some embodiments of the present application, H can be 50mm, 51mm, 52mm, 60mm, 200mm and other values, but the present invention is not limited to this. H can also be other values ​​between 50mm-200mm, as long as the spacing distance between any two adjacent sub-liquid flow paths can be H and satisfies the relationship of 50mm≤H≤200mm.

[0058] When the spacing distance between any two adjacent sub-liquid flow paths is less than 50 mm, the internal structure of the mold will become more complex and fragile, reducing the structural strength of the mold and increasing the risk of deformation or damage to the mold during processing and use. The smaller spacing distance also increases the difficulty of processing the sub-liquid flow paths, thereby increasing the manufacturing cost of the mold.

[0059] When the distance between any two adjacent sub-liquid flow paths is greater than 200mm, the flow of the heat exchange liquid in the sub-liquid flow paths may become uneven. Due to the long distance, the heat exchange liquid may encounter more resistance or interference during the flow process, resulting in uneven heat transfer, increasing the temperature gradient inside the mold, and increasing the temperature difference between different parts of the mold, resulting in uneven heating of the mold. Uneven mold heating may cause problems such as shrinkage, deformation or surface defects in the product.

[0060] Therefore, when the spacing distance between any two adjacent sub-liquid flow paths is greater than or equal to 50 mm and less than or equal to 200 mm, it is a reasonable spacing distance between any two adjacent sub-liquid flow paths, which not only helps to reduce the flow resistance of the heat exchange liquid in the sub-liquid flow paths, improve the circulation efficiency of the heat exchange liquid inside the mold, improve the uniformity of heat distribution, and quickly balance the temperature difference inside the mold, but also ensure the structural strength of the mold, reduce the risk of thermal stress and deformation of the mold, and thus effectively improve the product quality of the mold.

[0061] According to some embodiments of the present invention, Figure 4 As shown, one of the two sub-liquid flow paths at the end is the liquid inlet flow path, and the other is the liquid outlet flow path. By clearly distinguishing the liquid inlet flow path and the liquid outlet flow path, it can be ensured that the heat exchange liquid flows along the predetermined path inside the mold, avoiding confusion and intersection of the heat exchange liquid in the liquid flow path. The liquid inlet flow path is responsible for introducing new heat exchange liquid, while the liquid outlet flow path is responsible for discharging the heat exchange liquid that has released heat, ensuring the rapid transfer and uniform distribution of heat inside the mold, thereby improving the heat exchange efficiency, allowing the mold to reach the required operating temperature faster, and reducing unnecessary energy loss.

[0062] According to some embodiments of the present invention, Figure 3 As shown, along the radial direction of the sub-liquid flow path, the distance between the edge of the sub-liquid flow path and the corresponding surface of the mold is greater than or equal to 20 mm and less than or equal to 30 mm.

[0063] Among them, the spacing distance between the edge of the sub-liquid flow path and the corresponding surface of the mold can be h, 20mm≤h≤30mm, that is, the spacing distance h between the edge of the sub-liquid flow path and the corresponding surface of the mold can be any value between 20mm-30mm. In some embodiments of the present application, h can be 20mm, 21mm, 22mm, 25mm, 30mm and other values, but the present invention is not limited to this. h can also be other values ​​between 20mm-30mm, as long as the spacing distance h between the edge of the sub-liquid flow path and the corresponding surface of the mold satisfies the relationship of 20mm≤h≤30mm.

[0064] When the distance h between the edge of the sub-liquid flow path and the corresponding surface of the mold is within this distance range, the heat exchange liquid can heat the mold evenly and effectively to avoid uneven heating on the corresponding surface of the mold. It can also avoid the edge of the sub-liquid flow path being too close to the corresponding surface of the mold, which would cause the structural strength of the mold to decrease. It can effectively avoid local stress concentration on the corresponding surface of the mold to cause deformation, cracks and other damages, thereby improving the durability of the mold.

[0065] It can be explained that, along the radial direction of the sub-liquid flow path, the edge of the sub-liquid flow path refers to the edge of the sub-liquid flow path closer to the mold surface, and the corresponding surface of the mold refers to the mold surface to which the edge of the sub-liquid flow path is closer.

[0066] According to some embodiments of the present invention, a mold is finely processed, and during the fine processing of the mold, a heat exchange liquid of a first preset temperature is introduced into the liquid flow path in real time so that the heat exchange liquid flows through the liquid flow path, including: during the fine processing of the mold, a milling fluid of a second preset temperature is sprayed into the mold in real time, and the first preset temperature is equal to the second preset temperature.

[0067] Among them, by making the first preset temperature equal to the second preset temperature, it can be ensured that the temperature of the milling fluid sprayed on the mold is the same as the temperature of the heat exchange liquid, which can avoid thermal stress concentration caused by temperature difference, so as to ensure that the mold maintains a constant temperature during the finishing process, avoid the milling fluid from lowering the finishing temperature of the mold, and keep the mold at a stable temperature for finishing, thereby avoiding processing errors caused by temperature changes, and then maintaining the dimensional stability and processing accuracy of the mold, which helps to improve the production efficiency of the mold, reduce production costs and improve product quality.

[0068] According to some embodiments of the present invention, the inner diameter of the liquid flow path is greater than or equal to 16 mm. In some embodiments of the present application, the inner diameter of the liquid flow path can be 16 mm, 17 mm, 18 mm, 19 mm and other values, but the present invention is not limited thereto. The inner diameter of the liquid flow path can also be other values, as long as the inner diameter of the liquid flow path is greater than or equal to 16 mm. It can be explained that the upper limit of the inner diameter of the liquid flow path can be reasonably set according to the actual size of the mold. A larger inner diameter can reduce the flow resistance of the heat exchange liquid in the liquid flow path, thereby improving the flow efficiency of the heat exchange liquid, helping to enhance the heat dissipation effect, and efficient heat transfer can also help to quickly balance the temperature difference inside the mold, so that the mold can maintain a constant temperature during the finishing process, further reducing the risk of thermal stress and deformation of the mold.

[0069] According to some embodiments of the present invention, a mold is finely processed, and during the fine processing of the mold, a heat exchange liquid with a first preset temperature is introduced into the liquid flow path in real time to allow the heat exchange liquid to flow through the liquid flow path, including: the liquid flow path is connected to a mold temperature controller to allow the heat exchange liquid to flow through the liquid flow path.

[0070] Among them, the mold temperature controller is based on the principle of cyclic heat transfer, and realizes precise control of the mold temperature through heating, cooling and circulation processes to ensure that the mold maintains a stable temperature during operation. The mold temperature controller can quickly heat up or cool down, and maintain temperature stability, reducing waiting time and temperature adjustment time during the production process, thereby improving production efficiency. By accurately controlling the mold temperature, the mold temperature controller can reduce the thermal stress of the mold during processing, thereby reducing the risk of deformation and cracking of the mold due to thermal stress. The liquid flow path is connected to the mold temperature controller to allow the heat exchange liquid to flow through the liquid flow path. The temperature of the heat exchange liquid is precisely controlled by the mold temperature controller, which can ensure that the mold maintains a stable temperature (i.e. the above-mentioned constant temperature) during operation. This helps to reduce problems such as mold deformation and cracking caused by temperature changes, thereby improving the accuracy and stability of the mold.

[0071] According to some embodiments of the present invention, the first preset temperature is greater than or equal to 80° C. and less than or equal to 100° C. That is, the value of the first preset temperature is between 80° C. and 100° C., and the value of the first preset temperature can be 80° C., 81° C., 82° C., 90° C., 100° C., etc., but the present invention is not limited thereto, and the value of the first preset temperature can also be other values ​​between 80° C. and 100° C., as long as the first preset temperature is greater than or equal to 80° C. and less than or equal to 100° C.

[0072] As an example of the present application, the temperature of the mold under production conditions and the temperature when in use can both be 80°C. Setting the temperature of mold finishing (first preset temperature) at 80°C can avoid the mold being larger in size during use than after processing due to thermal expansion and contraction, thereby improving the dimensional accuracy of the mold, and thus maintaining the consistency of the mold size during processing and in use, thereby improving the product quality of the mold. The stability of the mold temperature helps to ensure the dimensional accuracy of the workpiece and avoid quality problems caused by excessive dimensional deviation.

[0073] However, the value of the first preset temperature can be reasonably set according to actual conditions, as long as the consistency between the size of the mold during processing and the size during use can be ensured.

[0074] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0075] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A mold processing method, characterized in that: include: Roughing the mold material to form a mold; Processing a liquid flow path on the mold; fixing the mold; The mold is finely processed, and during the fine processing of the mold, a heat exchange liquid at a first preset temperature is introduced into the liquid flow path in real time to make the heat exchange liquid flow through the liquid flow path.

2. The mold processing method according to claim 1, characterized in that: The step of machining a liquid flow path on the mold comprises: A plurality of sub-liquid flow paths connected in series are processed on the mold to form the liquid flow path.

3. The mold processing method according to claim 2, characterized in that: The plurality of sub-liquid flow paths are parallel to each other, and any two adjacent sub-liquid flow paths are spaced apart.

4. The mold processing method according to claim 3, characterized in that: The spacing distance between any two adjacent sub-liquid flow paths is greater than or equal to 50 mm and less than or equal to 200 mm.

5. The mold processing method according to claim 3, characterized in that: One of the two sub-liquid flow paths located at the end is a liquid inlet flow path, and the other is a liquid outlet flow path.

6. The mold processing method according to claim 3, characterized in that: Along the radial direction of the sub-liquid flow path, the distance between the edge of the sub-liquid flow path and the corresponding surface of the mold is greater than or equal to 20 mm and less than or equal to 30 mm.

7. The mold processing method according to claim 1, characterized in that: The process of fine-machining the mold and introducing a heat exchange liquid at a first preset temperature into the liquid flow path in real time during the fine-machining of the mold so that the heat exchange liquid flows through the liquid flow path includes: During the finishing process of the mold, a milling fluid at a second preset temperature is sprayed onto the mold in real time, and the first preset temperature is equal to the second preset temperature.

8. The mold processing method according to any one of claims 1 to 7, characterized in that: The inner diameter of the liquid flow path is greater than or equal to 16 mm.

9. The mold processing method according to any one of claims 1 to 7, characterized in that: The process of fine-machining the mold and introducing a heat exchange liquid at a first preset temperature into the liquid flow path in real time during the fine-machining of the mold so that the heat exchange liquid flows through the liquid flow path includes: The liquid flow path is connected to a mold temperature controller so that the heat exchange liquid flows through the liquid flow path.

10. The mold processing method according to any one of claims 1 to 7, characterized in that: The first preset temperature is greater than or equal to 80° C. and less than or equal to 100° C.

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