Dynamic control method and device for internal high-pressure hydraulic machine
By installing multiple pressure sensors in the internal high-pressure hydraulic press and designing a fast-response hydraulic valve actuator, combined with a multi-size adjustable shock absorber and sealing mechanism, the problems of sensor dynamic response lag and poor adaptability are solved, achieving higher processing accuracy and production efficiency.
Patent Information
- Application Number
- CN202510965758.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-14
- Publication Date
- 2025-09-05
AI Technical Summary
The pressure sensors of existing internal high-pressure hydraulic presses have lag problems in dynamic response and adaptability, resulting in reduced processing accuracy and efficiency. In addition, the sensors need to be customized for different pipe diameters, which increases costs and inventory management complexity.
A dynamic control method for an internal high-pressure hydraulic press is designed. By installing multiple pressure sensors at key locations in the hydraulic system, combined with a multi-size adjustable shock-absorbing mechanism and a synchronous sealing mechanism, rapid installation and sealing are achieved. A fast-response hydraulic valve actuator is used, and system performance is optimized through a control algorithm.
It improves the versatility and flexibility of sensors, reduces inventory management complexity and cost, enhances system stability and processing accuracy, shortens processing cycle, and improves production efficiency and equipment life.
Smart Images
Figure CN120592944A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of internal high-pressure hydraulic presses, and in particular to a dynamic control method and device for an internal high-pressure hydraulic press. Background Art
[0002] Internal high-pressure forming presses are designed specifically for integral internal high-pressure forming of parts, eliminating the need for multiple piece welds. They play a pivotal role in the upstream and midstream industries. Internal high-pressure hydraulic presses are complex in structure, operate in harsh environments, and perform complex movements in confined and confined spaces. Therefore, coordination between the various movements is crucial.
[0003] In existing high-pressure forming presses, hydraulic system pressure control is crucial to process stability and product quality. However, when pressure in traditional hydraulic systems changes dynamically, the sensors often experience response lag and poor tracking accuracy due to machine vibration, which impacts processing accuracy and efficiency. Furthermore, existing sensors, due to their single design, must be individually customized for each pipe diameter. Each pipe diameter requires a separate mold, significantly increasing mold development, commissioning, and maintenance costs. Sensors for different pipe diameters may require separate molds, increasing costs and the need to stock multiple sensor specifications, taking up storage space and increasing the risk of inventory backlogs. Statistics from one company show that the inventory turnover rate of customized sensors is 40% lower than that of general-purpose sensors. Therefore, developing a control system that can achieve dynamic pressure tracking is particularly important.
[0004] Therefore, a dynamic control method and device for an internal high-pressure hydraulic press are proposed to solve the above problems. Summary of the Invention
[0005] In view of this, the technical problem to be solved by the present invention is to propose a dynamic control method and device for an internal high-pressure hydraulic press to solve the problems of dynamic response lag and poor adaptability between pressure sensors in the prior art.
[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a dynamic control method for an internal high-pressure hydraulic press, comprising: S1, install the pressure sensor. Install the pressure sensor at the key position of the hydraulic system so that the pressure sensor can collect accurate pressure data during detection; S2, design control algorithm. According to the working characteristics and requirements of the internal high-pressure hydraulic press, design a suitable control algorithm and implement it through programming; S3. Select the actuator, choose a hydraulic valve actuator with fast response speed and high control accuracy; S4. Debugging and optimization: During actual operation, the entire system is debugged and optimized, and the control parameters are continuously adjusted until the best pressure dynamic following effect is achieved.
[0007] A dynamic control method for an internal high-pressure hydraulic press, wherein the hydraulic system described in S1 is equipped with multiple pressure sensors, and the pressure sensors are all installed at key nodes of the hydraulic system, including the main oil circuit, the inlet and outlet of the actuator, and the control valve group.
[0008] A dynamic control device for an internal high-pressure hydraulic press, comprising a sensor housing, a hydraulic detection tube mounted on one end of the sensor housing, a transmission module mounted on the other end of the sensor housing, a hydraulic detection tube disposed outside the detection module, and a multi-size adjustable vibration damping mechanism and a synchronous sealing mechanism; The multi-size adjustable shock absorbing mechanism is arranged on the side of the sensor housing close to the transmission module, and the multi-size adjustable shock absorbing mechanism is used for rapid installation of pipes with different diameters; The synchronous sealing mechanism is arranged on a side of the sensor housing close to the detection module, and is used for sealing the hydraulic pipeline.
[0009] Preferably, the multi-size adjustable shock absorbing mechanism includes an anti-slip adjustment handle, a threaded groove is provided on the outer surface of the sensor shell, and the inner wall of the anti-slip adjustment handle is threadedly connected to the threaded groove of the sensor shell, and the anti-slip adjustment handle is fixedly connected to a turntable on the side away from the transmission module.
[0010] Preferably, the middle part of the turntable is sleeved on the outer surface of the sensor shell, a positioning plate is provided on the side of the turntable away from the anti-slip adjustment handle, an arc-shaped support plate is provided on the circumference of the positioning plate away from the turntable, the arc-shaped support plate is fixedly connected to a connecting column on the side close to the positioning plate, and a guide groove is provided on the circumference of the positioning plate.
[0011] Preferably, an arc-shaped extrusion groove is opened on the circumference of the turntable, the outer surface of the middle part of the connecting column is slidingly connected in the guide groove, the end of the connecting column away from the arc-shaped support plate is slidingly connected in the arc-shaped extrusion groove, and a positioning block is fixedly connected to the middle circumference of the positioning plate.
[0012] Preferably, limiting grooves are evenly provided on the sensor shell, and the positioning block is slidably connected in the limiting groove of the sensor shell away from the positioning plate. Anti-slip grooves are evenly provided on the outer surface of the arc support plate, and rubber bushings are evenly laid in the anti-slip grooves for anti-slip and shock absorption during sensor shell detection.
[0013] Preferably, the synchronous sealing mechanism includes a first fixed block, which is symmetrically fixedly connected to the inner side of the arc-surface support plate, and the first fixed block is rotatably connected to a push plate at one end away from the arc-surface support plate, and the push plate is rotatably connected to a second fixed block at one end away from the first fixed block, and the second fixed block is fixedly connected to a slide cylinder at one end away from the push plate, and the inner side of the slide cylinder is slidably connected to the outer surface of the sensor shell.
[0014] Preferably, the end of the slide away from the positioning plate is fixedly connected to an annular extrusion sealing spring, the annular extrusion sealing spring is slidably connected to the outer surface of the sensor shell, the side of the annular extrusion sealing spring away from the slide is fixedly connected to a limiting block, the limiting block is fixedly connected to the sensor shell, and an annular sealing gasket is installed on the middle outer surface of the annular extrusion sealing spring.
[0015] Compared with the prior art, the present invention provides a dynamic control method and device for an internal high-pressure hydraulic press, which has the following beneficial effects: 1. This solution uses an adjustable curved support plate that can be expanded and scalable to accommodate the installation of different hydraulic pipelines. This allows for quick adaptation to hydraulic pipelines of varying diameters, allowing the same sensor to be used in a variety of equipment and scenarios. Enterprises no longer need to stock sensors of different sizes for pipes of different diameters, reducing the complexity and cost of inventory management while also improving the versatility and flexibility of the sensor.
[0016] 2. Compared with the prior art, when installing the pressure sensor in the hydraulic press pipeline, the pressure sensor is rotated by rotating the thread. When rotating the sensor, due to the long sensor harness, frequent twisting will cause damage to the transmission module of the transmission line. However, through the design of this solution, the sensor housing and the pipeline can be fixed by manually rotating the anti-slip adjustment handle on the sensor housing, preventing the sensor housing and the transmission module from rotating and causing damage to the harness caused by entanglement of the transmission module.
[0017] 3. This solution installs a rubber bushing with a certain elastic shock absorption on the contact surface of the arc support plate and the pipeline. It can not only adapt to the vibration frequency of different pipe diameters, but also reduce the risk of sensor detection accuracy reduction due to machine vibration during sensor detection. It can enhance the rapid dynamic control and response between sensors and enhance system stability. It can not only effectively deal with various interferences during pressure changes and improve the stability and reliability of the hydraulic system, but also improve processing efficiency. The rapid pressure response and stable following performance can shorten the processing cycle, improve production efficiency and extend equipment life.
[0018] 4. This solution is linked with a multi-size adjustable shock absorbing mechanism. When the multi-size adjustable shock absorbing mechanism is installed and fixed on the pipeline, it can synchronously drive the slide to push the annular extrusion sealing spring to deform. The deformation of the annular extrusion sealing spring can make the annular sealing gasket installed on the annular extrusion sealing spring squeeze and seal with the inner wall of the pipeline. By closely fitting the sensor to the inner wall of the pipeline, hydraulic leakage and measurement errors can be reduced, the measurement accuracy of the sensor can be improved, and the dynamic response time of the equipment can be reduced. Through precise pressure dynamic tracking, the processing accuracy of the internal high-pressure hydraulic press can be effectively improved and the precision error of the product can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 This is an auxiliary schematic diagram of the three-dimensional structure of the present invention; Figure 3 This is a schematic diagram of a half-cut state of the three-dimensional structure of the present invention; Figure 4 For the present invention Figure 3 Enlarged view of point A in the middle; Figure 5 For the present invention Figure 3 Enlarged view of point B in the middle; Figure 6 This is a schematic diagram of the decomposed state of the three-dimensional structure of the present invention; Figure 7 This is a functional structural diagram of the high-pressure system of the present invention.
[0020] In the picture: 1. Sensor housing; 11. Detection module; 12. Transmission module; 13. Hydraulic detection tube; 2. Multi-size adjustable shock absorption mechanism; 21. Anti-slip adjustment handle; 22. Turntable; 23. Positioning plate; 24. Arc support plate; 25. Connecting column; 26. Guide groove; 27. Arc extrusion groove; 28. Positioning block; 3. Synchronous sealing mechanism; 31. First fixed block; 32. Push plate; 33. Second fixed block; 34. Slide; 35. Annular extrusion sealing spring; 36. Annular sealing gasket; 37. Limit block. DETAILED DESCRIPTION
[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work shall fall within the scope of protection of the present invention. The present invention will be further described in detail below based on the accompanying drawings and examples; For the first embodiment, please refer to Figures 1 to 6 As shown: To solve the problems mentioned in the technical solution, the embodiment of the present application provides a dynamic control device for an internal high-pressure hydraulic press, comprising a sensor housing 1, a hydraulic detection tube 13 mounted on one end of the sensor housing 1, a transmission module 12 mounted on the other end of the sensor housing 1, a hydraulic detection tube 13 disposed outside the detection module 11, a multi-size adjustable vibration damping mechanism 2, and a synchronous sealing mechanism 3; The multi-size adjustable shock absorbing mechanism 2 is arranged on the side of the sensor housing 1 close to the transmission module 12, and the multi-size adjustable shock absorbing mechanism 2 is used for rapid installation of pipes with different diameters; The synchronous sealing mechanism 3 is arranged on the side of the sensor housing 1 close to the detection module 11, and the synchronous sealing mechanism 3 is used to seal the hydraulic pipeline; Specifically, such as Figure 4 As shown, a thread groove is provided on the outer surface of the sensor housing 1, and the inner wall of the anti-slip adjustment handle 21 is threadedly connected to the thread groove of the sensor housing 1, and the anti-slip adjustment handle 21 is fixedly connected to a turntable 22 on the side away from the transmission module 12; the middle part of the turntable 22 is sleeved on the outer surface of the sensor housing 1, and a positioning disk 23 is provided on the side of the turntable 22 away from the anti-slip adjustment handle 21, and a curved support plate 24 is provided on the circumference of the side of the positioning disk 23 away from the turntable 22, and a connecting column 25 is fixedly connected to the side of the curved support plate 24 close to the positioning disk 23, and a guide groove 26 is provided on the circumference of the positioning disk 23; Among them, the anti-slip adjustment handle 21 and the arc extrusion groove 27 rotate synchronously, and the anti-slip adjustment handle 21 is threadedly connected to the sensor housing 1. Limiting grooves are evenly opened on the sensor housing 1, and the positioning block 28 slides in the limiting grooves. The positioning plate 23 can only slide on the surface of the sensor housing 1 and cannot rotate.
[0022] Further, if Figure 6 As shown, the turntable 22 is provided with an arc-surface extrusion groove 27 on its circumference, the outer surface of the middle portion of the connecting column 25 is slidably connected to the guide groove 26, and the end of the connecting column 25 away from the arc-surface support plate 24 is slidably connected to the arc-surface extrusion groove 27, and a positioning block 28 is fixedly connected to the circumference of the middle portion of the positioning disk 23. Limiting grooves are evenly provided on the sensor housing 1, and the positioning block 28 is slidably connected to the limiting groove of the sensor housing 1 on one side away from the positioning disk 23; The anti-slip adjustment handle 21 is rotated to drive the rotary disc 22 to rotate synchronously. The arc-shaped extrusion groove 27 on the rotary disc 22 and the connecting column 25 are squeezed together to make the connecting column 25 slide along the guide groove 26. The sliding of the connecting column 25 can synchronously drive the arc-shaped support plate 24 to expand and contract. This solution provides an adjustable curved support plate 24, which can adapt to the installation of different hydraulic pipelines through the expansion and contraction of the curved support plate 24, so that it can quickly adapt to hydraulic pipelines of different diameters, so that the same sensor can be used in a variety of different equipment and scenarios. Enterprises no longer need to stock sensors of different sizes for pipelines of different diameters, reducing the complexity and cost of inventory management, while also improving the versatility and flexibility of the sensor.
[0023] Compared to the prior art, which uses screw thread to rotate the pressure sensor when installing it in the hydraulic press pipeline, frequent twisting can damage the transmission module 12 due to the long sensor wiring harness. However, this design allows the sensor housing 1 to be fixed to the pipeline by manually rotating the anti-slip adjustment handle 21 on the sensor housing 1, preventing the sensor housing 1 and the transmission module 12 from being entangled and causing damage to the wiring harness.
[0024] Furthermore, the outer surface of the arc support plate 24 is evenly provided with anti-skid grooves, and rubber bushings are evenly laid in the anti-skid grooves to prevent skidding and reduce shock when the sensor housing 1 is detected; This solution installs a rubber bushing with a certain elastic shock absorption on the contact surface between the arc support plate 24 and the pipeline. It can not only adapt to the vibration frequency of 10-200Hz of different pipe diameters, but also reduce the risk of sensor detection accuracy reduction due to machine vibration during sensor detection. It can also enhance the rapid dynamic control and response between sensors, enhance system stability, effectively deal with various interferences during pressure changes, improve the stability and reliability of the hydraulic system, and extend the life of the equipment.
[0025] Specifically, such as Figure 5 and Figure 6 As shown, the first fixed block 31 is symmetrically fixedly connected to the inner side of the cambered support plate 24, the first fixed block 31 is rotatably connected to the push plate 32 at one end away from the cambered support plate 24, the push plate 32 is rotatably connected to the second fixed block 33 at one end away from the first fixed block 31, the second fixed block 33 is fixedly connected to the slide cylinder 34 at one end away from the push plate 32, and the inner side of the slide cylinder 34 is slidably connected to the outer surface of the sensor housing 1; the slide cylinder 34 is fixedly connected to an annular extrusion sealing elastic piece 35 at one end away from the positioning plate 23, the annular extrusion sealing elastic piece is slidably connected to the outer surface of the sensor housing 1, the annular extrusion sealing elastic piece 35 is fixedly connected to a limiting block 37 on one side away from the slide cylinder 34, the limiting block 37 is fixedly connected to the sensor housing 1, and an annular sealing gasket 36 is installed on the middle outer surface of the annular extrusion sealing elastic piece 35; The cross section of the annular extrusion sealing spring 35 is V-shaped. The annular extrusion sealing spring 35 can be deformed by extruding both sides, and the deformation of the annular extrusion sealing spring 35 is consistent with the expansion amount between the arc-surface support plate 24 .
[0026] This solution is linked to the multi-size adjustable shock absorbing mechanism 2. When the multi-size adjustable shock absorbing mechanism 2 is installed and fixed on the pipeline, it can synchronously drive the slide 34 to push the annular extrusion sealing spring 35 to deform. The deformation of the annular extrusion sealing spring 35 can make the annular sealing gasket 36 installed on the annular extrusion sealing spring 35 squeeze and seal with the inner wall of the pipeline. By closely fitting the sensor to the inner wall of the pipeline, hydraulic leakage and measurement errors can be reduced, and the measurement accuracy of the sensor can be improved. At the same time, the dynamic response time of the equipment is reduced. Through precise pressure dynamic tracking, the processing accuracy of the internal high-pressure hydraulic press can be effectively improved, and the precision error of the product can be reduced.
[0027] For the second embodiment, please refer to Figures 1 to 7 As shown: S, install the pressure sensor, install the pressure sensor in the key position of the hydraulic system, so that the pressure sensor can collect accurate pressure data during detection; The specific installation process of the pressure sensor in S1 is as follows: First of all, the structure of the internal high-pressure hydraulic press mainly includes the frame, side thrust cylinder, hydraulic system, mold clamping cylinder, high-pressure source and PLC control system. Its working principle is to use liquid or gas as the force transmission medium, precisely control the internal pressure and axial feed, and cooperate with the mold cavity to finally make complex variable-section metal hollow components.
[0028] That is, install it in the following location; Pump outlet: used to monitor the pump output pressure to ensure the normal operation of the pump.
[0029] Cylinder inlet and outlet: used to monitor the input and output pressure of the cylinder respectively to ensure the normal operation of the cylinder.
[0030] High-pressure side of the oil circuit: used to monitor the maximum pressure of the entire hydraulic system to ensure the normal operation of the hydraulic system.
[0031] Slider hydraulic cylinder: A sensor is installed on the hydraulic cylinder of the slider hydraulic cylinder to monitor the movement state and pressure changes of the slider.
[0032] High-pressure source: Install a sensor at the high-pressure source to monitor the maximum pressure of the system in real time.
[0033] The specific installation steps are as follows: First, before installing the pressure sensor, you need to thoroughly clean the sensor and its installation location to ensure that there is no dirt, oil, and rust. This step is to ensure that the sensor housing 1 can fit tightly and be installed firmly. When cleaning the end cap of the sensor housing 1, pay special attention to the residue near the pressure port. This solution adopts pipeline installation. The sensor transmits pressure through the pipeline, which is suitable for applications requiring high accuracy and fast response. Ensure that the pipeline is clean and avoid clogging by impurities; The operator further inserts one side of the detection module 11 of the sensor housing 1 into the hydraulic detection pipe 13. When the sensor housing 1 is inserted into the pipe and fits the positioning plate 23, the operator can manually rotate the anti-slip adjustment handle 21 clockwise. Since the anti-slip adjustment handle 21 is threadedly connected to the threaded groove on the sensor housing 1, the turntable 22 can be synchronously driven to rotate and push the turntable 22 to the right by rotating the anti-slip adjustment handle 21. Figure 6 As shown, the turntable 22 can be driven to rotate synchronously by rotating the anti-skid adjustment handle 21, and the connecting column 25 can be squeezed together by the arc-surface extrusion groove 27 and the connecting column 25 provided on the turntable 22 to slide along the guide groove 26. The sliding of the connecting column 25 can synchronously drive the arc-surface support plate 24 to expand; until it fits with the pipeline, and the anti-skid adjustment handle 21 can have a certain self-locking property by being threadedly connected to the thread groove of the sensor housing 1 on the inner side of the anti-skid adjustment handle 21.
[0034] This solution provides an adjustable curved support plate 24, which can adapt to the installation of different hydraulic pipelines through the expansion and contraction of the curved support plate 24, so that it can quickly adapt to hydraulic pipelines of different diameters, so that the same sensor can be used in a variety of different equipment and scenarios. Enterprises no longer need to stock sensors of different sizes for pipelines of different diameters, reducing the complexity and cost of inventory management, while also improving the versatility and flexibility of the sensor.
[0035] Compared with the prior art in which the pressure sensor is installed in the hydraulic press pipeline by rotating the thread, when the sensor is rotated, due to the long sensor harness, frequent twisting will cause damage to the transmission module 12 of the transmission line. However, through the design of this solution, the sensor housing 1 and the pipeline can be fixed by manually rotating the anti-slip adjustment handle 21 on the sensor housing 1, preventing the sensor housing 1 and the transmission module 12 from rotating and causing the transmission module 12 to be entangled and causing damage to the harness.
[0036] Furthermore, since the cross-section of the annular extruded sealing spring 35 is V-shaped, the annular extruded sealing spring 35 can be deformed by extruding both sides, and the deformation of the annular extruded sealing spring 35 is consistent with the expansion amount between the arc-surface support plate 24 .
[0037] This solution is arranged to be linked with the multi-size adjustable shock absorbing mechanism 2. When the multi-size adjustable shock absorbing mechanism 2 is installed and fixed to the pipeline, it can synchronously drive the slide 34 to push the annular extrusion sealing spring 35 to deform. Through the deformation of the annular extrusion sealing spring 35, the annular sealing gasket 36 installed on the annular extrusion sealing spring 35 can be squeezed and sealed with the inner wall of the pipeline. By closely fitting the sensor to the inner wall of the pipeline, hydraulic leakage and measurement errors can be reduced, the measurement accuracy of the sensor can be improved, and at the same time, the dynamic response time of the equipment can be reduced. Through precise pressure dynamic tracking, the processing accuracy of the internal high-pressure hydraulic press can be effectively improved and the precision error of the product can be reduced.
[0038] After installation, check that the sensor is secure and not loose, and perform preliminary tests to ensure that the sensor can work properly. Calibrate and test to ensure the accuracy and stability of the sensor.
[0039] S2, design control algorithm, according to the working characteristics and requirements of the hydraulic press, design a suitable control algorithm and implement it through programming; To connect the sensor, follow the sensor's wiring instructions and correctly connect the corresponding wires. Wiring steps include opening the sensor's top cover and connecting the external leads to the power connector. For a four-wire sensor, connect the positive power lead to the positive terminal, the negative power lead to the GND pin, the signal output line to the amplifier input, and the amplifier output to the signal input of the measuring device. Ensure all connections are secure and not loose. Perform an electrical test to confirm normal signal transmission.
[0040] S3. Select the actuator, choose a hydraulic valve actuator with fast response speed and high control accuracy; S4. Debugging and optimization: During actual operation, the entire system is debugged and optimized, and the control parameters are continuously adjusted until the best pressure dynamic following effect is achieved.
[0041] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.
[0042] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.
Claims
1. A dynamic control method for an internal high-pressure hydraulic press, characterized in that: include: S1, install the pressure sensor. Install the pressure sensor at the key position of the hydraulic system so that the pressure sensor can collect accurate pressure data during detection; S2, design control algorithm. According to the working characteristics and requirements of the internal high-pressure hydraulic press, design a suitable control algorithm and implement it through programming; S3. Select the actuator, choose a hydraulic valve actuator with fast response speed and high control accuracy; S4. Debugging and optimization: During the actual operation of the hydraulic system, the entire system is debugged and optimized, and the control parameters are continuously adjusted until the best pressure dynamic following effect is achieved.
2. The dynamic control method of an internal high-pressure hydraulic press according to claim 1, characterized in that: The hydraulic system described in S1 is equipped with multiple pressure sensors, and the pressure sensors are all installed at key nodes of the hydraulic system, including the main oil circuit, the inlet and outlet of the actuator, and the control valve group.
3. A dynamic control device for an internal high-pressure hydraulic press, applicable to a dynamic control method for an internal high-pressure hydraulic press according to any one of claims 1 to 2, comprising a sensor housing (1), a hydraulic detection tube (13) being mounted on one end of the sensor housing (1), a transmission module (12) being mounted on the other end of the sensor housing (1), a hydraulic detection tube (13) being disposed on the outer side of the detection module (11), and characterized in that: It also includes a multi-size adjustable shock absorbing mechanism (2) and a synchronous sealing mechanism (3); The multi-size adjustable shock absorbing mechanism (2) is arranged on a side of the sensor housing (1) close to the transmission module (12), and the multi-size adjustable shock absorbing mechanism (2) is used for rapid installation of pipes with different diameters; The synchronous sealing mechanism (3) is arranged on a side of the sensor housing (1) close to the detection module (11), and the synchronous sealing mechanism (3) is used to seal the hydraulic pipeline.
4. The dynamic control device for an internal high-pressure hydraulic press according to claim 3, characterized in that: The multi-size adjustable shock absorbing mechanism (2) includes an anti-skid adjustment handle (21), a threaded groove is provided on the outer surface of the sensor housing (1), and the inner wall of the anti-skid adjustment handle (21) is threadedly connected to the threaded groove of the sensor housing (1), and a turntable (22) is fixedly connected to the side of the anti-skid adjustment handle (21) away from the transmission module (12).
5. The dynamic control device for an internal high-pressure hydraulic press according to claim 4, characterized in that: The middle portion of the turntable (22) is sleeved on the outer surface of the sensor housing (1); a positioning disk (23) is provided on the side of the turntable (22) away from the anti-slip adjustment handle (21); an arc-shaped support plate (24) is provided on the circumference of the side of the positioning disk (23) away from the turntable (22); a connecting column (25) is fixedly connected to the side of the arc-shaped support plate (24) close to the positioning disk (23); and a guide groove (26) is provided on the circumference of the positioning disk (23).
6. The dynamic control device for an internal high-pressure hydraulic press according to claim 5, characterized in that: The rotating disk (22) is provided with an arc-surface extrusion groove (27) on its circumference. The outer surface of the middle portion of the connecting column (25) is slidably connected to the guide groove (26). The end of the connecting column (25) away from the arc-surface support plate (24) is slidably connected to the arc-surface extrusion groove (27). The middle portion of the positioning disk (23) is fixedly connected to a positioning block (28).
7. The dynamic control device for an internal high-pressure hydraulic press according to claim 6, characterized in that: Limiting grooves are evenly provided on the sensor housing (1), and the positioning block (28) is slidably connected to the limiting groove of the sensor housing (1) on the side away from the positioning plate (23). Anti-skid grooves are evenly provided on the outer surface of the arc support plate (24), and rubber bushings are evenly laid in the anti-skid grooves for anti-skid and shock-absorbing during detection of the sensor housing (1).
8. The dynamic control device for an internal high-pressure hydraulic press according to claim 5, characterized in that: The synchronous sealing mechanism (3) includes a first fixed block (31), the first fixed block (31) is symmetrically fixedly connected to the inner side of the arc-surface support plate (24), the first fixed block (31) is rotatably connected to a push plate (32) at one end away from the arc-surface support plate (24), the push plate (32) is rotatably connected to a second fixed block (33) at one end away from the first fixed block (31), the second fixed block (33) is fixedly connected to a slide cylinder (34) at one end away from the push plate (32), and the inner side of the slide cylinder (34) is slidably connected to the outer surface of the sensor housing (1).
9. The dynamic control device for an internal high-pressure hydraulic press according to claim 8, characterized in that: The end of the slide (34) away from the positioning plate (23) is fixedly connected to an annular extrusion sealing spring (35), and the annular extrusion sealing spring (35) is slidably connected to the outer surface of the sensor housing (1). The side of the annular extrusion sealing spring (35) away from the slide (34) is fixedly connected to a limiting block (37), and the limiting block (37) is fixedly connected to the sensor housing (1). An annular sealing gasket (36) is installed on the outer surface of the middle part of the annular extrusion sealing spring (35).