Temperature isostatic pressing device and working method thereof

Abstract

The invention relates to a warm isostatic pressing device and a working method thereof, and belongs to the technical field of isostatic pressing equipment. Through the synergistic effect of the driving mechanism, the rotating mechanism, the cylinder head, the inner cylinder, the outer cylinder, the temperature sensor, the water circulation mechanism and the pressure control mechanism, accurate isostatic pressing treatment of materials at the constant temperature is achieved, the pressure control mechanism adjusts the internal pressure of the inner cylinder in real time, it is ensured that the pressure is evenly applied to the materials, and the working efficiency is improved. The product density is improved; the porosity and cracks are reduced; a water circulation mechanism is combined with a temperature sensor, the working temperature is accurately controlled, it is guaranteed that materials are pressed at the optimal temperature, and the product quality is improved; the whole structure is reasonable, all the components work cooperatively, and the working efficiency and the equipment reliability are improved.

Description

Technical Field

[0001] The invention relates to the technical field of isostatic pressing equipment, in particular to a warm isostatic pressing device and a working method thereof. Background Art

[0002] With the development of material processing, isostatic pressing technology has emerged. This technology uses fluid media to uniformly apply high pressure to powdered materials from all directions to densify them, thereby obtaining materials with excellent physical and mechanical properties. Currently, isostatic pressing technology is widely used in aerospace, automotive industry, medical equipment, electronic products, energy industry and other industries, especially in the manufacturing of ceramics, composite materials, cemented carbide, magnetic materials and other products that require high density and uniform structure. It shows unique advantages.

[0003] In the related art, isostatic pressing equipment densifies the material by placing the powder material in an elastic membrane and then placing it in a pressure vessel filled with a fluid medium. When the piston pushes the fluid medium to compress the elastic membrane, the elastic membrane will evenly transfer the pressure to the powder material inside, ensuring that the material is evenly densified in all directions.

[0004] However, the above-mentioned isostatic pressing equipment has the problem of insufficient pressure control accuracy, which easily leads to increased porosity inside the material and even cracks, affecting the quality and performance of the final product. Summary of the invention

[0005] In view of the shortcomings of the above-mentioned existing production technology, the applicant provides a warm isostatic pressing device and a working method thereof, thereby ensuring that pressure is evenly applied to all parts of the material during the entire pressing process, thereby obtaining a product with uniform density. Moreover, through precise pressure control, the porosity and cracks inside the material can be reduced, thereby improving the integrity and strength of the material.

[0006] The technical solution adopted by the present invention is as follows: a warm isostatic pressing device, comprising

[0007] A driving mechanism, wherein the driving mechanism is used to drive the movable plate to move in a vertical direction;

[0008] A rotating mechanism, disposed on the movable plate, and used for driving the cylinder head to rotate;

[0009] A cylinder head connected to the rotating mechanism, a material frame is provided at the bottom of the cylinder head, and the material frame is used to load materials;

[0010] The inner cylinder is located directly below the cylinder head. A plurality of inner engaging teeth are arranged around the inner wall of the inner cylinder, and a plurality of outer engaging teeth are arranged around the outer wall of the cylinder head. The positions of the inner engaging teeth and the outer engaging teeth are arranged alternately. The cylinder head is driven by the driving mechanism to descend. After descending to the right position, the rotating mechanism drives the cylinder head to rotate so that the inner engaging teeth are engaged with the outer engaging teeth.

[0011] An outer cylinder is arranged outside the inner cylinder, and is used for water circulation and water storage, and passes water into the inner cylinder;

[0012] A temperature sensing mechanism for detecting the temperature of the inner cylinder or the outer cylinder;

[0013] A water circulation mechanism connected to the outer cylinder and used for adding water into the outer cylinder and heating the water;

[0014] The pressure control mechanism is connected to the inner cylinder and is used to control the pressure value inside the inner cylinder.

[0015] In one embodiment, the driving mechanism includes a downward pressure driving member, the output end of which is connected to a driving wheel, and the driving wheel drives at least one driven wheel to rotate through a belt. A screw rod is also fixed under the driven wheel. When the driven wheel rotates, the screw rod rotates synchronously, causing a movable plate that is sleeved on the screw rod and threadedly matched with the screw rod to move in a vertical direction.

[0016] In one of the embodiments, at least one tensioning wheel is arranged on one side of the belt, and the tensioning wheel abuts against the belt to adjust the tightness of the belt.

[0017] In one embodiment, the rotating mechanism includes a rotating driving member, and an output end of the rotating driving member is connected to the top of the cylinder head through a rotating bearing.

[0018] In one of the embodiments, a rotation position detection sensor is further provided on one side of the top position of the cylinder head, and the rotation position detection sensor determines the rotation position of the cylinder head by a set preset value.

[0019] In one of the embodiments, it also includes an anti-falling mechanism, which is arranged on the movable plate; the anti-falling mechanism includes a latch cylinder, and a pressure block is fixed to the output end of the latch cylinder; a safety axis is also vertically arranged in the displacement direction of the movable plate, and a plurality of safety notches are provided on the safety axis along the vertical direction, and the output direction of the latch cylinder is opposite to the safety axis; when the movable plate falls, the output end of the latch cylinder drives the pressure block to extend in the direction of the safety axis, and the pressure block is inserted into the safety axis and prevents the movable plate from falling.

[0020] In one embodiment, the temperature sensing mechanism includes an inner cylinder temperature sensor and an outer cylinder temperature sensor; the inner cylinder temperature sensor is arranged to penetrate the outer cylinder and the side wall of the inner cylinder in sequence to detect the temperature of the inner cylinder; the outer cylinder temperature sensor is arranged to penetrate the side wall of the outer cylinder to detect the temperature of the outer cylinder.

[0021] In one of the embodiments, the water circulation mechanism includes a circulation pump, which is used to circulate water. A heater is provided at the inlet end of the circulation pump, which is used to heat the water.

[0022] In one embodiment, the pressure control mechanism includes an air source processor, a proportional valve, a booster pump, a pressure sensor, a pneumatic needle valve, a pneumatic ball valve and a safety valve;

[0023] When the inner and outer engaging teeth of the cylinder head and the inner cylinder are meshed, the air source is filtered through the air source processor, and then supplied to the booster pump through the proportional valve. The booster pump then pressurizes the air source and pumps it into the inner cylinder.

[0024] The pressure sensor is used to detect the pressure value inside the inner cylinder in real time, and when the pressure value reaches the vicinity of the set value, the PLC controls the proportional valve to adjust the air flow rate passing through, thereby adjusting the boosting speed of the booster pump until the set pressure value is reached;

[0025] When it is detected that the pressure value inside the inner cylinder exceeds the set pressure value, the booster pump stops working and opens the pneumatic needle valve at the same time to slowly discharge the pressure inside the inner cylinder until it reaches the set value;

[0026] When the pressure value greatly exceeds the set pressure value, the pressure inside the inner cylinder is quickly discharged through the pneumatic ball valve. When the pressure approaches the set pressure value, the pneumatic ball valve is closed and the pneumatic needle valve is opened to slowly discharge the pressure inside the inner cylinder until it reaches the set value.

[0027] When the pressure value is too high, the safety valve is expanded to discharge the pressure inside the inner cylinder.

[0028] A method for operating the warm isostatic pressing device is also provided, using the warm isostatic pressing device, comprising the following steps:

[0029] The driving mechanism drives the cylinder head to descend;

[0030] After the cylinder head is lowered into place, the rotating mechanism drives the cylinder head to rotate, so that the outer engaging teeth on the cylinder head engage with the inner engaging teeth on the inner cylinder to complete the fixation, and the material in the material frame at the bottom of the cylinder head is located in the cavity of the inner cylinder;

[0031] Water is added into the outer cylinder through the water circulation mechanism, and the outer cylinder then passes the water into the inner cylinder;

[0032] The temperature of the inner or outer cylinder is monitored by a temperature sensing mechanism, and the water temperature is controlled by a water circulation mechanism;

[0033] The pressure value inside the inner cylinder is controlled by the pressure control mechanism.

[0034] The beneficial effects of the present invention are as follows:

[0035] The invention has a compact structure and is easy to operate. Through the coordinated action of the air source processor, proportional valve, booster pump, pressure sensor, pneumatic needle valve and pneumatic ball valve in the pressure control mechanism, the pressure inside the inner cylinder is precisely controlled. The high-precision pressure regulation capability of the invention can ensure that the material is subjected to uniform pressure during the pressing process, thereby improving the density of the product and reducing defects.

[0036] The present invention also has the following advantages:

[0037] (1) The present invention is provided with a water circulation mechanism, which, in combination with the inner and outer cylinder temperature sensors, can monitor and adjust the working environment temperature of the inner and outer cylinders in real time. This temperature control mechanism not only improves the working efficiency, but also ensures that the material is pressed at the optimal temperature, thereby optimizing the performance and quality of the product;

[0038] (2) The present invention is provided with an anti-falling mechanism, which adopts a latch cylinder in conjunction with a safety shaft, and can respond quickly when a failure occurs in the equipment, effectively preventing the movable plate from falling, ensuring the safety of the operator, and avoiding safety accidents and property losses of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 This is a schematic diagram of the overall structure of the present invention. (Pipelines are hidden)

[0040] Figure 2 It is a schematic diagram of the matching structure of the cylinder head and the inner cylinder of the present invention.

[0041] Figure 3 It is a schematic structural diagram of the driving mechanism of the present invention.

[0042] Figure 4 This is a schematic diagram of the structure of the pressure control mechanism of the present invention. (Pipelines are hidden)

[0043] Among them: 1. driving mechanism; 2. rotating mechanism; 3. cylinder head; 4. material frame; 5. material; 6. inner cylinder; 7. outer cylinder; 8. inner cylinder temperature sensor; 9. outer cylinder temperature sensor; 10. anti-falling mechanism; 11. safety shaft; 12. water circulation mechanism; 13. pressure control mechanism; 14. movable plate;

[0044] 101, downward pressure driving member; 102, driving wheel; 103, driven wheel; 104, belt; 105, tension wheel; 106, screw rod;

[0045] 201, a rotating driving member; 202, a rotating bearing; 203, a rotation in place detection sensor;

[0046] 1201. Heater; 1202. Circulation pump;

[0047] 1301, air source processor; 1302, proportional valve; 1303, booster pump; 1304, pressure sensor; 1305, pneumatic needle valve; 1306, pneumatic ball valve; 1307, safety valve. DETAILED DESCRIPTION

[0048] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0049] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0050] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0052] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0053] like Figure 1-Figure 4 , which shows a schematic structural diagram of a warm isostatic pressing device in one embodiment of the present invention.

[0054] In this embodiment, a warm isostatic pressing device of the present invention includes a driving mechanism 1, a rotating mechanism 2, a cylinder head 3, a material frame 4, material 5, an inner cylinder 6, an outer cylinder 7, a temperature sensing mechanism, an anti-falling mechanism 10, a safety shaft 11, a water circulation mechanism 12, a pressure control mechanism 13 and a movable plate 14.

[0055] In this embodiment, the driving mechanism 1 is used to drive the movable plate 14 to move in the vertical direction. Specifically, the driving mechanism 1 includes a downward driving member 101, whose output end is connected to a driving wheel 102; the driving wheel 102 drives at least one driven wheel 103 to rotate through a belt 104; a screw rod 106 is fixed below the driven wheel 103, and when the driven wheel 103 rotates, the screw rod 106 rotates synchronously, so that the movable plate 14 sleeved on the screw rod 106 and threadedly matched with the screw rod 106 moves in the vertical direction.

[0056] Furthermore, at least one tensioning wheel 105 is provided on one side of the belt 104 for adjusting the tightness of the belt to ensure the stability and reliability of the transmission.

[0057] In this embodiment, the rotating mechanism 2 is arranged on the movable plate 14, and is used to drive the cylinder head 3 to rotate. Specifically, the rotating mechanism 2 includes a rotating driving member 201, and its output end is connected to the top of the cylinder head 3 through a rotating bearing 202. A rotation position detection sensor 203 is also arranged on one side of the top position of the cylinder head 3, which is used to detect the rotation position of the cylinder head 3 and ensure that the cylinder head 3 can accurately rotate to a predetermined position.

[0058] In this embodiment, the cylinder head 3 is connected to the rotating mechanism 2, and a material frame 4 is provided at the bottom of the cylinder head 3 for loading the material 5 to be pressed;

[0059] Furthermore, the inner cylinder 6 is located directly below the cylinder head 3, and a plurality of inner engaging teeth are arranged around the inner wall of the inner cylinder 6, and a plurality of outer engaging teeth are arranged around the outer wall of the cylinder head 3. The positions of the inner engaging teeth and the outer engaging teeth are arranged alternately, and when the cylinder head 3 is driven by the driving mechanism 1 to descend to the position, the rotating mechanism 2 drives the cylinder head 3 to rotate, so that the inner engaging teeth are engaged with the outer engaging teeth, thereby realizing the fixed connection between the cylinder head 3 and the inner cylinder 6, and ensuring that the material 5 is located in the cavity of the inner cylinder 6.

[0060] In this embodiment, the outer cylinder 7 is arranged outside the inner cylinder 6, and is used for water circulation and water storage, and passes water into the inner cylinder 6; specifically, a certain space is formed between the outer cylinder 7 and the inner cylinder 6 to facilitate the operation of the water circulation mechanism 12.

[0061] In this embodiment, the temperature sensing mechanism includes an inner cylinder temperature sensor 8 and an outer cylinder temperature sensor 9. The inner cylinder temperature sensor 8 is sequentially arranged through the side walls of the outer cylinder 7 and the inner cylinder 6 to detect the temperature of the inner cylinder 6. The outer cylinder temperature sensor 9 is arranged through the side wall of the outer cylinder 7 to detect the temperature of the outer cylinder 7. Through these two temperature sensors, this embodiment can monitor and adjust the working environment temperature of the inner cylinder 6 and the outer cylinder 7 in real time.

[0062] In this embodiment, the water circulation mechanism 12 is connected to the outer cylinder 7, and is used to add water to the outer cylinder 7 and heat the water. Specifically, the water circulation mechanism 12 includes a circulation pump 1202, which is used to circulate the water. A heater 1201 is provided at the inlet end of the circulation pump 1202, which is used to heat the water. Through the operation of the water circulation mechanism 12, it can be ensured that the material 5 is pressed at the optimal temperature.

[0063] In this embodiment, the pressure control mechanism 13 is connected to the inner cylinder 6 and is used to control the pressure value inside the inner cylinder 6. Specifically, the pressure control mechanism 13 includes an air source processor 1301, a proportional valve 1302, a booster pump 1303, a pressure sensor 1304, a pneumatic needle valve 1305, a pneumatic ball valve 1306 and a safety valve 1307.

[0064] When the inner and outer engaging teeth of the cylinder head 3 and the inner cylinder 6 are meshed, the air source is filtered by the air source processor 1301, and then supplied to the booster pump 1303 through the proportional valve 1302, and the booster pump 1303 then pressurizes the air source and pumps it into the inner cylinder 6;

[0065] The pressure sensor 1304 is used to detect the pressure value inside the inner cylinder 6 in real time, and when the pressure value reaches the vicinity of the set value, the PLC controls the proportional valve 1302 to adjust the air flow passing through, and then adjusts the boosting speed of the boosting pump 1303 until the set pressure value is reached;

[0066] When it is detected that the pressure value inside the inner cylinder 6 exceeds the set pressure value, the booster pump 1303 stops working and opens the pneumatic needle valve 1305 to slowly discharge the pressure inside the inner cylinder 6 until it reaches the set value;

[0067] Furthermore, when the pressure value greatly exceeds the set pressure value, the pressure inside the inner cylinder 6 is first quickly discharged through the pneumatic ball valve 1306. When the pressure approaches the set pressure value, the pneumatic ball valve 1306 is closed and the pneumatic needle valve 1305 is opened to allow the pressure inside the inner cylinder 6 to be slowly discharged until it reaches the set value.

[0068] Furthermore, when the pressure value is too large, the safety valve 1307 is expanded to discharge the pressure inside the inner cylinder 6 to ensure the safe operation of the equipment.

[0069] In this embodiment, the warm isostatic pressing device of the present invention is further provided with an anti-falling mechanism 10, which is used to prevent the movable plate 14 from falling when the device fails. Specifically, the anti-falling mechanism 10 is arranged on the movable plate 14, and includes a latch cylinder, and a pressure block is fixed to the output end of the latch cylinder. A safety shaft 11 is also vertically arranged in the vertical displacement direction of the movable plate 14, and a plurality of safety notches are provided on the safety shaft 11 in the vertical direction;

[0070] The output direction of the latch cylinder is opposite to the safety shaft 11. When the movable plate 14 falls, the output end of the latch cylinder drives the pressure block to extend toward the direction of the safety shaft 11, and the pressure block is inserted into the safety shaft 11 and prevents the movable plate 14 from falling.

[0071] In a specific embodiment, a descent speed sensor is further provided on the movable plate 14, and the descent speed sensor is used to monitor the descent speed of the movable plate 14; when the descent speed of the movable plate 14 exceeds the maximum value set in the descent speed sensor, the anti-falling mechanism 10 is started, and the latch cylinder drives the pressure block to be inserted into the bayonet of the safety shaft 11, so as to prevent the movable plate 14 from falling.

[0072] In other embodiments, a working method of a warm isostatic pressing device is also provided, comprising the following steps:

[0073] The driving mechanism 1 drives the cylinder head 3 to descend;

[0074] After the cylinder head 3 is lowered into position, the rotating mechanism 2 drives the cylinder head 3 to rotate, so that the outer engaging teeth on the cylinder head 3 engage with the inner engaging teeth on the inner cylinder 6, thereby completing the fixation and placing the material 5 in the material frame 4 at the bottom of the cylinder head 3 in the cavity of the inner cylinder 6;

[0075] Water is added into the outer cylinder 7 through the water circulation mechanism 12, and the outer cylinder 7 then passes the water into the inner cylinder 6;

[0076] The temperature of the inner cylinder 6 or the outer cylinder 7 is monitored by a temperature sensing mechanism, and the water temperature is controlled by a water circulation mechanism 12;

[0077] The pressure value inside the inner cylinder 6 is controlled by the pressure control mechanism 13 .

[0078] The present invention realizes precise control of the internal pressure of the inner cylinder 6 through the coordinated action of the air source processor 1301, the proportional valve 1302, the booster pump 1303, the pressure sensor 1304, the pneumatic needle valve 1305 and the pneumatic ball valve 1306 in the pressure control mechanism 13. The high-precision pressure regulation capability can ensure that the material 5 is subjected to uniform pressure during the pressing process, thereby improving the density of the product and reducing defects; at the same time, a water circulation mechanism 12 is also provided, which cooperates with the inner cylinder temperature sensor 8 and the outer cylinder temperature sensor 9 to monitor and adjust the working environment temperature of the inner cylinder 6 and the outer cylinder 7 in real time; this temperature control mechanism not only improves the work efficiency, but also ensures that the material 5 is pressed at the optimal temperature, thereby optimizing the performance and quality of the product; finally, the present invention adds an anti-falling mechanism 10, and adopts a structural design of a latch cylinder and a safety shaft 11, which can respond quickly and effectively prevent the movable plate 14 from falling when the equipment fails, and can ensure the safety of the operator and avoid safety accidents and equipment property losses.

[0079] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0080] The above-mentioned embodiments only express the implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A warm isostatic pressing device, characterized in that: include A driving mechanism, wherein the driving mechanism is used to drive the movable plate to move in a vertical direction; A rotating mechanism, disposed on the movable plate, and used for driving the cylinder head to rotate; A cylinder head connected to the rotating mechanism, a material frame is provided at the bottom of the cylinder head, and the material frame is used to load materials; The inner cylinder is located directly below the cylinder head. A plurality of inner engaging teeth are arranged around the inner wall of the inner cylinder, and a plurality of outer engaging teeth are arranged around the outer wall of the cylinder head. The positions of the inner engaging teeth and the outer engaging teeth are arranged alternately. The cylinder head is driven by the driving mechanism to descend. After descending to the right position, the rotating mechanism drives the cylinder head to rotate so that the inner engaging teeth are engaged with the outer engaging teeth. An outer cylinder is arranged outside the inner cylinder, and is used for water circulation and water storage, and passes water into the inner cylinder; A temperature sensing mechanism for detecting the temperature of the inner cylinder or the outer cylinder; A water circulation mechanism connected to the outer cylinder and used for adding water into the outer cylinder and heating the water; The pressure control mechanism is connected to the inner cylinder and is used to control the pressure value inside the inner cylinder.

2. The warm isostatic pressing device according to claim 1, characterized in that: The driving mechanism includes a downward pressure driving member, the output end of which is connected to a driving wheel, and the driving wheel drives at least one driven wheel to rotate through a belt. A screw rod is also fixed under the driven wheel. When the driven wheel rotates, the screw rod rotates synchronously, so that the movable plate sleeved on the screw rod and threadedly matched with the screw rod is displaced in the vertical direction.

3. The warm isostatic pressing device according to claim 2, characterized in that: At least one tensioning wheel is arranged on one side of the belt, and the tensioning wheel abuts against the belt to adjust the tightness of the belt.

4. The warm isostatic pressing device according to claim 1, characterized in that: The rotating mechanism comprises a rotating driving member, and the output end of the rotating driving member is connected to the top of the cylinder head through a rotating bearing.

5. The warm isostatic pressing device according to claim 4, characterized in that: A rotation position detection sensor is also provided on one side of the top position of the cylinder head, and the rotation position detection sensor determines the rotation position of the cylinder head by a set preset value.

6. The warm isostatic pressing device according to claim 1, characterized in that: It also includes an anti-falling mechanism, which is arranged on the movable plate; The anti-falling mechanism includes a latch cylinder, and a pressure block is fixed at the output end of the latch cylinder; a safety axis is also vertically arranged in the displacement direction of the movable plate, and a plurality of safety notches are provided on the safety axis in the vertical direction, and the output direction of the latch cylinder is opposite to the safety axis; when the movable plate falls, the output end of the latch cylinder drives the pressure block to extend in the direction of the safety axis, and the pressure block is inserted into the safety axis and prevents the movable plate from falling.

7. The warm isostatic pressing device according to claim 1, characterized in that: The temperature sensing mechanism includes an inner cylinder temperature sensor and an outer cylinder temperature sensor; The inner cylinder temperature sensor is sequentially arranged through the side walls of the outer cylinder and the inner cylinder to detect the temperature of the inner cylinder; The outer cylinder temperature sensor is arranged through the side wall of the outer cylinder and is used to detect the temperature of the outer cylinder.

8. The warm isostatic pressing device according to claim 1, characterized in that: The water circulation mechanism comprises a circulation pump, which is used for circulating water. A heater is arranged at the inlet end of the circulation pump, which is used for heating the water.

9. The warm isostatic pressing device according to claim 1, characterized in that: The pressure control mechanism includes an air source processor, a proportional valve, a booster pump, a pressure sensor, a pneumatic needle valve, a pneumatic ball valve and a safety valve; When the inner and outer engaging teeth of the cylinder head and the inner cylinder are meshed, the air source is filtered through the air source processor, and then supplied to the booster pump through the proportional valve. The booster pump then pressurizes the air source and pumps it into the inner cylinder. The pressure sensor is used to detect the pressure value inside the inner cylinder in real time, and when the pressure value reaches the vicinity of the set value, the PLC controls the proportional valve to adjust the air flow rate passing through, thereby adjusting the boosting speed of the booster pump until the set pressure value is reached; When it is detected that the pressure value inside the inner cylinder exceeds the set pressure value, the booster pump stops working and opens the pneumatic needle valve at the same time to slowly discharge the pressure inside the inner cylinder until it reaches the set value; When the pressure value greatly exceeds the set pressure value, the pressure inside the inner cylinder is quickly discharged through the pneumatic ball valve. When the pressure approaches the set pressure value, the pneumatic ball valve is closed and the pneumatic needle valve is opened to slowly discharge the pressure inside the inner cylinder until it reaches the set value. When the pressure value is too high, the safety valve is expanded to discharge the pressure inside the inner cylinder.

10. A method for operating a warm isostatic pressing device, using the warm isostatic pressing device as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: The driving mechanism drives the cylinder head to descend; After the cylinder head is lowered into place, the rotating mechanism drives the cylinder head to rotate, so that the outer engaging teeth on the cylinder head engage with the inner engaging teeth on the inner cylinder to complete the fixation, and the material in the material frame at the bottom of the cylinder head is located in the cavity of the inner cylinder; Water is added into the outer cylinder through the water circulation mechanism, and the outer cylinder then passes the water into the inner cylinder; The temperature of the inner or outer cylinder is monitored by a temperature sensing mechanism, and the water temperature is controlled by a water circulation mechanism; The pressure value inside the inner cylinder is controlled by the pressure control mechanism.

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