Anti-shock frame for a servo press

Abstract

This invention discloses an impact-resistant frame for a servo press, relating to the field of press frame technology. It aims to solve the technical problem that the vibration reduction effect is easily deteriorated when the frame relies on vibration dampers for vibration reduction. The frame includes a main frame body, a platform connected to the top of the main frame body, and a press body mounted on the top of the platform. The main frame body includes an impact-resistant plate arranged at the bottom of the platform. A large-diameter piston plate is connected to the bottom of the impact-resistant plate via multiple connecting plates. Multiple small-diameter piston columns are also connected to the bottom of the impact-resistant plate. The main frame body also includes a base plate, with a vibration-damping cylinder connected to the top of the base plate. The vibration-damping cylinder has a large chamber and multiple small chambers arranged inside. An air inlet regulating pipe is rotatably arranged inside the vibration-damping cylinder. A rotation regulating component and a pressure regulating component are arranged on the side of the vibration-damping cylinder. This invention has the advantage of utilizing the elastic compression and expansion of gas to absorb vibration energy, achieving a vibration reduction effect.

Description

Technical Field

[0001] This invention relates to the field of press frame technology, and more specifically, to an impact-resistant frame for a servo press. Background Technology

[0002] Servo presses, as core equipment in the field of precision machining, are widely used in industries such as automobile manufacturing, electronic component stamping, and hardware forming. Their frame, as the basic support structure of the whole machine, directly determines the stability of the equipment operation, processing accuracy, and service life. During the operation of a servo press, when the stamping head applies instantaneous impact force to the workpiece, it will generate strong impact vibration. This vibration will not only be transmitted to the ground through the frame, causing resonance of surrounding equipment, but will also lead to fatigue of the frame structure itself, deviation in the accuracy of the processed workpiece, and in severe cases, even damage to the transmission components of the press.

[0003] In existing technologies, while the impact-resistant frame of a servo press possesses a certain degree of impact resistance, its vibration reduction schemes for impact-induced vibrations mostly rely on dampers installed inside the frame. The core principle is to absorb vibration energy through the elastic deformation of the springs within the dampers. However, the springs of the dampers, subjected to alternating impact loads transmitted by the frame over long periods, gradually experience material fatigue, leading to permanent deformation and a deviation from their design stiffness. This prevents them from effectively absorbing vibration energy through elastic deformation, resulting in increased vibration transmission rate and reduced vibration reduction performance. Therefore, we propose an impact-resistant frame for a servo press. Summary of the Invention

[0004] The purpose of this invention is to provide an impact-resistant frame for a servo press, so as to solve the technical problem that the vibration reduction effect is easily deteriorated when the frame relies on vibration dampers for vibration reduction.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: an impact-resistant frame for a servo press, comprising a frame body, a platform connected to the top of the frame body, and a press body mounted on the top of the platform; wherein, the frame body includes an impact-resistant plate arranged at the bottom of the platform, a large-diameter piston plate connected to the bottom of the impact-resistant plate via multiple connecting plates, and multiple small-diameter piston columns connected to the bottom of the impact-resistant plate; the frame body also includes a base plate, the base plate being mounted on the ground to form a foundation support, and a vibration-damping cylinder connected to the top of the base plate; the vibration-damping cylinder has a large chamber and multiple small chambers arranged inside. The chamber has a large-diameter piston plate slidably arranged within it to form a piston-type buffer damping structure, and a small-diameter piston column slidably arranged within it to form a piston-type buffer damping structure. An air intake regulating pipe is rotatably arranged within the vibration-damping cylinder, and the inner cavity of the air intake regulating pipe is used for the flow of low-temperature gas. A rotation adjustment assembly and a pressure adjustment assembly are arranged on the side of the vibration-damping cylinder. The rotation adjustment assembly is used to adjust the rotation state of the air intake regulating pipe, allowing it to selectively connect to the large chamber alone, to the small chamber alone, or to both the large chamber and the small chamber simultaneously.

[0006] Preferably, the large chamber has a first air inlet at the bottom and the small chamber has a second air inlet at the bottom; the large-diameter piston plate has multiple exhaust channels I from top to bottom and the small-diameter piston column has exhaust channels II from top to bottom, the diameter of the exhaust channels I is smaller than the diameter of the first air inlet and the diameter of the exhaust channels II is smaller than the diameter of the second air inlet.

[0007] Preferably, a fixed frame is connected to the inner side wall of the main frame, and a connecting pipe is arranged on the side wall of the fixed frame. The air inlet end of the connecting pipe is connected to an external air supply device, and the air inlet end of the air inlet regulating pipe is in a sealed rotational fit with the output end of the connecting pipe. The outer circumferential wall of the air inlet regulating pipe is provided with multiple air holes one, two, three, and multiple air holes four. Along the axial direction of the air inlet regulating pipe, multiple air holes one are linearly aligned, and multiple air holes four are linearly aligned with air holes three. When air hole one is connected to the second air inlet, the first air inlet is isolated from the inner cavity of the air inlet regulating pipe. When air hole two is connected to the first air inlet, the second air inlet is isolated from the inner cavity of the air inlet regulating pipe. When air hole four is connected to the second air inlet, air hole three is simultaneously connected to the first air inlet.

[0008] Preferably, the top of the platform is provided with a plurality of air holes six and a plurality of air holes seven, the plurality of air holes seven being arranged in a ring array, and the plurality of air holes six being arranged within the ring area formed by the plurality of air holes seven; the inner cavity of the platform is provided with a plurality of elongated grooves and a plurality of T-shaped grooves, the plurality of T-shaped grooves being arranged in a ring array; the output end of exhaust channel one communicates with the inner cavity of the T-shaped groove through the inner cavity of the connecting plate, the inner cavity of the impact-resistant plate, and the inner cavity of the platform, and the inner cavity of the T-shaped groove communicates with the air holes seven; the output end of exhaust channel two communicates with the inner cavity of the elongated groove through the inner cavity of the impact-resistant plate, the inner cavity of the platform, and the inner cavity of the elongated groove communicates with the air holes six.

[0009] Preferably, the inner cavity of the vibration damping cylinder is provided with multiple oil storage chambers, which are used to contain lubricating oil. The top of each oil storage chamber is connected to an oil inlet via an oil passage 1. The oil passage 1 is connected to another oil passage 1 via an oil passage 2. The top of each oil storage chamber is provided with an exhaust hole. The top of each oil storage chamber is connected to multiple oil outlet holes 1. The output ends of the multiple oil outlet holes 1 are arranged in a ring array on the inner wall of the small chamber and are in contact with the outer wall of the small-diameter piston column. The output ends of the other multiple oil outlet holes 1 are arranged in a ring array on the inner wall of the large chamber and are in contact with the inner wall of the large-diameter piston plate. Furthermore, the bottom of the oil passage 2 is connected to multiple oil outlet holes 2. The output ends of the multiple oil outlet holes 2 are arranged in a ring array on the inner circumference of the large chamber and are in contact with the outer wall of the large-diameter piston plate.

[0010] Preferably, an annular plug plate is slidably arranged in the oil storage chamber. When the annular plug plate moves upward, it pushes the lubricating oil in the oil storage chamber to be discharged through the first oil outlet and the second oil outlet. A plurality of guide rods are connected to the top of the annular plug plate, and the guide rods move through the top of the vibration damping cylinder. An air intake channel is arranged below the annular plug plate, and the bottoms of the two oil storage chambers are connected through the air intake channel. When gas is delivered into the air intake channel, positive pressure is generated to push the annular plug plate upward.

[0011] Preferably, the pressurization regulating assembly includes a pressure box installed on the outer wall of the vibration damping cylinder. A guide block, which is a circular plate structure, is rotatably arranged on the inner circumference of the pressure box. The guide block is rotatably arranged on the outer circumference of the air intake regulating pipe. An airflow channel is arranged inside the pressure box. A piston chamber is connected to the top of the airflow channel. An air inlet and an air outlet are connected to the top of the piston chamber. A one-way valve is provided inside the air inlet, allowing external air to enter the piston chamber. A two-way valve with the same structure is provided inside the air outlet, allowing gas in the piston chamber to exit through the air outlet. The output end of the air outlet is connected to the inlet end of the air intake. A piston head is slidably arranged inside the piston chamber. A movable rod is connected to the top of the piston head. A limiting groove is opened at the top of the pressure box. The movable rod moves through the top of the limiting groove. A limiting plate is connected to the outer circumference of the movable rod. A spring is arranged between the limiting plate and the inner wall of the limiting groove.

[0012] Preferably, the outer wall of the pressure box has an air groove 1 communicating with its inner cavity, the outer wall of the guide block has an air groove 2 communicating with its inner cavity, and the outer circumferential wall of the guide block has an arc-shaped groove; the outer circumferential wall of the air intake regulating pipe also has multiple air holes 5, which are arranged in a four-corner orientation. When the air intake regulating pipe rotates to different positions, one air hole 5 always remains vertically upward, forming a linear alignment with the airflow channel; when the guide block rotates at low speed, the air hole 5 that remains vertically upward can form an intermittent communication with the airflow channel through the air groove 2, and the air groove 1 can form an intermittent communication with the airflow channel through the arc-shaped groove; a driven pulley is arranged on the outer wall of the guide block, and a motor 2 is also installed on the side wall of the vibration damping cylinder. The output end of the motor 2 is connected to a driving pulley, and the driving pulley is connected to the driven pulley through a synchronous belt.

[0013] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention designs a piston-type buffer damping structure formed by a large-diameter piston plate and a large chamber, and a small-diameter piston column and a small chamber. When the servo press generates impact vibrations that are transmitted to the impact-resistant plate, the vibration force of the impact-resistant plate pushes the large-diameter piston plate and the small-diameter piston column to move towards the high-pressure gas chamber below. The gas inside the chamber is compressed, generating a reverse positive pressure to hinder the movement. During this process, the elastic deformation of the gas converts the kinetic energy of the vibration into the internal energy of the gas. The elastic compression and expansion of the gas absorb the vibration energy, achieving a vibration reduction effect. Moreover, the gas medium does not have the problem of material fatigue accumulation. Compared with traditional spring vibration reduction, this structure not only solves the problem of fatigue deformation but also maintains stable vibration reduction performance over a long period of time.

[0014] 2. This invention also designs a switchable piston buffer damping structure, which uses a rotary adjustment component to drive the intake regulating pipe to rotate, achieving selective connection with the large and small chambers, thereby adapting to the processing needs of large, medium and small workpieces; when processing large workpieces, the impact load generated by the stamping of large workpieces is greater. At this time, the intake regulating pipe is connected to both the large and small chambers at the same time, and low temperature gas is simultaneously delivered to the large and small chambers through the intake regulating pipe, so that the large-diameter piston plate and the small-diameter piston column synchronously form a piston-type buffer damping structure in the corresponding chambers, which utilizes the elastic compression and expansion of the gas to efficiently absorb a large amount of impact energy and reduce vibration transmission; When machining medium-sized workpieces, the intake regulating pipe is connected only to the large chamber, and the large-diameter piston plate provides buffer damping to adapt to medium impact loads, reducing vibration transmission. When machining small workpieces, the intake regulating pipe is connected only to the small chamber, and the small-diameter piston column provides buffer damping to avoid resource waste. This allows the device to achieve graded buffering and precise vibration reduction for workpieces of different specifications, ensuring stable vibration resistance under heavy load impacts while also considering energy efficiency and accuracy under medium and small load conditions. It effectively solves the problems of traditional frame vibration reduction structures having limited adaptability, difficulty in meeting diverse processing needs, and resource waste.

[0015] 3. This invention designs the diameter of the first exhaust channel to be smaller than that of the first air inlet, and the diameter of the second exhaust channel to be smaller than that of the second air inlet. When the servo press generates impact vibrations during operation, pushing the large-diameter piston plate to slide into the large chamber and the small-diameter piston column to slide into the small chamber, the flow rate of low-temperature gas entering the chamber through the air inlet will be greater than the flow rate discharged through the exhaust channel because the diameter of the first air inlet is larger than that of the first exhaust channel and the diameter of the second air inlet is larger than that of the second exhaust channel. This rapidly creates a high-pressure environment in the large and small chambers. The reverse thrust generated by the high-pressure gas can effectively buffer the impact movement of the piston, utilizing the damping effect of gas compression to consume vibration energy and improve the vibration reduction effect. At the same time, the smaller diameter exhaust channel can prevent the pressure in the chamber from being released too quickly, ensuring the continuity and stability of the buffering and damping effect, allowing the large-diameter piston plate and the small-diameter piston column to return to their original positions smoothly, avoiding secondary vibrations caused by sudden pressure drops, further optimizing the impact resistance of the frame, and ensuring stable vibration reduction under different impact loads.

[0016] 4. During the operation of the servo press, the external air supply device continuously supplies low-temperature gas to the inlet regulating pipe through the connecting pipe. Combined with the adjustment of the rotation state of the inlet regulating pipe by the rotary adjustment component, the low-temperature gas can be selectively introduced into the large chamber, the small chamber, or both chambers simultaneously. Specifically, the low-temperature gas flow in the large chamber is discharged through exhaust channel one on the large-diameter piston plate, sequentially passing through the inner cavity of the connecting plate, the inner cavity of the impact-resistant plate, and the inner cavity of the platform body, converging into the T-shaped grooves of the annular array, and finally ejected from the seven annularly arranged air holes at the top of the platform body, achieving cooling of the annular area of ​​the platform body. The low-temperature gas flow in the small chamber is discharged through exhaust channel two on the small-diameter piston column, passing through the inner cavity of the impact-resistant plate and the inner cavity of the platform body. The air is injected into a long groove and then ejected from the six air holes located in the annular area at the top of the platform, achieving cooling of the central area of ​​the platform. When processing small workpieces, only the small chamber works, cooling only the central area; when processing medium-sized workpieces, only the large chamber works, cooling only the annular area; when processing large workpieces, both chambers work simultaneously, achieving cooling of the entire platform. Thus, while meeting the requirements for impact resistance and vibration reduction, it achieves a suitable cooling effect according to different workpiece specifications. This solves the problem of temperature rise adaptability when the servo press is stamping workpieces, where the table surface generates heat due to workpiece plastic deformation heat transfer, vibration friction, etc., and large workpieces generate heat quickly during high-tonnage, high-frequency stamping, while small workpieces and low-strength materials generate less heat.

[0017] 5. This invention, through the design of a pressurization and regulation component, utilizes a motor to drive the guide block to rotate. This, combined with the continuous vertical upward airflow through the intake regulating pipe and the intermittent airflow through the pressure box, along with the synergistic action of spring reset and one-way valves one and two, forms an intermittent gas pressurization mechanism. This intermittently provides stable positive pressure to the intake channel to push the annular piston plate, achieving precise and intermittent lubrication of the mating surfaces between the large-diameter piston plate and the large chamber, and between the small-diameter piston column and the small chamber. This intermittent lubrication avoids the waste caused by high single-supply volumes of oil. Furthermore, the intermittent lubrication method compensates for the rapid consumption of lubricating oil on the mating surfaces under vibration and impact, preventing structural wear and motion stagnation caused by dry friction. Simultaneously, no additional high-pressure oil supply equipment is required; the pressurization and lubrication operation can be completed solely using the airflow resources of the intake regulating pipe. This effectively solves the problems of untimely and uneven lubrication of the piston-chamber mating surfaces in traditional frames, as well as the increased wear and decreased vibration damping performance caused by lubrication failure under high-frequency impact. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 This is a schematic diagram of the internal cavity structure of the frame body of the present invention.

[0020] Figure 3 This is a schematic diagram of the bottom structure of the impact-resistant plate of the present invention.

[0021] Figure 4 This is a schematic diagram of the disassembled structure of the platform, impact-resistant plate, and vibration-resistant cylinder of the present invention.

[0022] Figure 5 This is a cross-sectional structural diagram of the platform, impact-resistant plate, and vibration-resistant cylinder of the present invention.

[0023] Figure 6 This is a cross-sectional schematic diagram of the intake regulating pipe of the present invention.

[0024] Figure 7 This is a schematic diagram of the internal cavity structure of the platform of the present invention.

[0025] Figure 8 This is a schematic diagram of the internal cavity structure of the platform of the present invention from another perspective.

[0026] Figure 9 for Figure 4 Enlarged schematic diagram of the structure at point A in the middle.

[0027] Figure 10 This is a cross-sectional structural diagram of the vibration-damping cylinder of the present invention.

[0028] Figure 11 This is a schematic diagram of the annular stopper plate structure of the present invention.

[0029] Figure 12 This is a schematic diagram of the pressure box structure of the present invention.

[0030] Figure 13 This is a cross-sectional structural diagram of the pressure box of the present invention.

[0031] Figure 14 for Figure 13 Enlarged schematic diagram of the structure at point B.

[0032] Figure 15 This is a cross-sectional structural diagram of the pressure box, guide block, and intake regulating pipe of the present invention.

[0033] Figure 16 This is a schematic diagram of the arc-shaped groove structure on the side wall of the guide block of the present invention.

[0034] Explanation of the labels in the diagram: 1. Main frame; 2. Platform; 3. Main press body; 4. Fixture; 11. Impact-resistant plate; 12. Connecting plate; 13. Large-diameter piston plate; 14. Small-diameter piston column; 15. Base plate; 16. Vibration-damping cylinder; 17. Intake regulating pipe; 18. Rotary regulating assembly; 19. Pressure regulating assembly; 1301. Exhaust passage one; 1401. Exhaust passage two; 1601. Large chamber; 1602. Small chamber; 1603. First air inlet; 1604. Second air inlet; 1605. Oil storage chamber; 1606. Oil passage one; 1607. Oil inlet; 1608. Oil passage two; 1609. Exhaust port; 1610. Oil outlet one; 1611. Oil outlet two; 1612. Annular plug plate; 1613. Guide rod; 1614. Intake passage; 1701. Air hole one; 1702. Air hole two; 1703. Air hole three; 1704. Air hole four; 1705. Worm gear; 1706. Air hole five; 1801. Motor one; 1802. Bevel gear one; 803. Support frame; 1804. Bevel gear II; 1805. Gear III; 1806. Gear IV; 1807. Worm gear; 1901. Pressure box; 1902. Guide block; 1903. Airflow channel; 1904. Piston chamber; 1905. Air inlet; 1906. Air outlet channel; 1907. One-way valve I; 1908. One-way valve II; 1909. Piston head; 1910. Movable rod; 1911. Limiting groove; 1912. Limiting plate; 1913. Spring; 1914. Air groove I; 1915. Air groove II; 1916. Arc groove; 1917. Driven pulley; 1918. Motor II; 1919. Drive pulley; 1920. Synchronous belt; 201. Vent 6; 202. Vent 7; 203. Long groove; 204. T-groove; 401. Connecting pipe. Detailed Implementation

[0035] like Figures 1 to 16As shown, the present invention relates to an impact-resistant frame for a servo press, comprising a frame body 1, a platform 2 connected to the top of the frame body 1, and a press body 3 mounted on the top of the platform 2; wherein, the frame body 1 includes an impact-resistant plate 11 arranged at the bottom of the platform 2, the impact-resistant plate 11 being made of high-strength alloy steel plate, possessing high yield strength, good impact toughness, and capable of withstanding instantaneous impact loads and not easily deformed; a large-diameter piston plate 13 is connected to the bottom of the impact-resistant plate 11 via multiple connecting plates 12, and two small-diameter piston columns 14 are also connected to the bottom of the impact-resistant plate 11; the frame body 1 also includes a base plate 15, the base plate 15 being mounted on the ground to form a foundation support, and an anti-vibration cylinder 16 being connected to the top of the base plate 15; the inner cavity of the anti-vibration cylinder 16... The device comprises a large chamber 1601 and multiple small chambers 1602. A large-diameter piston plate 13 is slidably arranged in the large chamber 1601 to form a piston-type buffer damping structure, and a small-diameter piston column 14 is slidably arranged in the small chambers 1602 to form a piston-type buffer damping structure. An air intake regulating pipe 17 is rotatably arranged inside the vibration-damping cylinder 16. The air intake regulating pipe 17 is used to circulate low-temperature gas. A rotation regulating assembly 18 and a pressurization regulating assembly 19 are arranged on the side of the vibration-damping cylinder 16. The rotation regulating assembly 18 is used to adjust the rotation state of the air intake regulating pipe 17, so that the air intake regulating pipe 17 can selectively connect to the large chamber 1601 alone, to the small chambers 1602 alone, or to both the large chamber 1601 and the small chambers 1602 simultaneously.

[0036] This invention designs a piston-type buffer damping structure formed by a large-diameter piston plate 13 and a large chamber 1601, and a small-diameter piston column 14 and a small chamber 1602. When the servo press generates impact vibrations that are transmitted to the impact-resistant plate 11, the vibration force of the impact-resistant plate 11 pushes the large-diameter piston plate 13 and the small-diameter piston column 14 to move towards the high-pressure gas chamber below. The gas inside the chamber is compressed, generating a reverse positive pressure to hinder the movement. During this process, the elastic deformation of the gas converts the kinetic energy of the vibration into the internal energy of the gas. The elastic compression and expansion of the gas absorb the vibration energy, achieving a vibration reduction effect. Moreover, the gas medium does not have the problem of material fatigue accumulation. Compared with traditional spring vibration reduction, this structure not only solves the problem of fatigue deformation but also maintains stable vibration reduction performance over a long period of time.

[0037] This invention also designs a switchable piston buffer damping structure. The rotating adjustment component 18 drives the intake regulating pipe 17 to rotate, achieving selective connection with the large chamber 1601 and the small chamber 1602, thus adapting to the processing needs of large, medium, and small workpieces. When processing large workpieces, the impact load generated by the stamping is greater. In this case, the intake regulating pipe 17 is simultaneously connected to both the large chamber 1601 and the small chamber 1602. Low-temperature gas is simultaneously supplied to both chambers through the intake regulating pipe 17, causing the large-diameter piston plate 13 and the small-diameter piston column 14 to synchronously form a piston-type buffer damping structure in their respective chambers. This utilizes the elastic compression and expansion of the gas to efficiently absorb a large amount of impact energy. The device reduces vibration transmission. When processing medium-sized workpieces, the air intake regulating pipe 17 is connected only to the large chamber 1601, and the large-diameter piston plate 13 alone provides buffer damping to adapt to medium impact loads, thus reducing vibration transmission. When processing small workpieces, the air intake regulating pipe 17 is connected only to the small chamber 1602, and the small-diameter piston column 14 alone provides buffer damping, avoiding resource waste. This allows the device to achieve graded buffering and precise vibration reduction for workpieces of different specifications, ensuring stable vibration resistance under large load impacts while also considering energy efficiency and accuracy under medium and small load conditions. It effectively solves the problems of traditional frame vibration reduction structures having limited adaptability, difficulty in coping with diverse processing needs, and resource waste.

[0038] In an embodiment of the present invention, a first air inlet 1603 is provided at the bottom of the large chamber 1601, and a second air inlet 1604 is provided at the bottom of the small chamber 1602; the large-diameter piston plate 13 has multiple exhaust channels 1301 from top to bottom, and the small-diameter piston column 14 has exhaust channels 1401 from top to bottom. The diameter of the exhaust channel 1301 is smaller than the diameter of the first air inlet 1603, and the diameter of the exhaust channel 1401 is smaller than the diameter of the second air inlet 1604. This invention designs the diameter of the exhaust channel 1301 to be smaller than the diameter of the first inlet 1603, and the diameter of the exhaust channel 1401 to be smaller than the diameter of the second inlet 1604. When the servo press operates and generates impact vibrations, pushing the large-diameter piston plate 13 into the large chamber 1601 and the small-diameter piston rod 14 into the small chamber 1602, because the diameter of the first inlet 1603 is larger than the diameter of the exhaust channel 1301, and the diameter of the second inlet 1604 is larger than the diameter of the exhaust channel 1401, the flow rate of the low-temperature gas entering the chamber through the inlet will be greater than that through the exhaust channel. The discharged flow rate quickly creates a high-pressure environment in the large chamber 1601 and the small chamber 1602. The reverse thrust generated by the high-pressure gas can effectively buffer the impact movement of the piston, and the damping effect of gas compression is used to consume vibration energy and improve the vibration reduction effect. At the same time, the smaller diameter exhaust channel can prevent the pressure in the chamber from being released too quickly, ensuring the continuity and stability of the buffering and damping effect, so that the large-diameter piston plate 13 and the small-diameter piston column 14 can be smoothly reset, avoiding secondary vibration caused by sudden pressure drop, further optimizing the impact resistance of the frame, and ensuring smooth vibration reduction under different impact loads.

[0039] In an embodiment of the present invention, a fixing frame 4 is connected to the inner side wall of the frame body 1, and a connecting pipe 401 is arranged on the side wall of the fixing frame 4. The air inlet end of the connecting pipe 401 is connected to an external air supply device, and the air inlet end of the air inlet regulating pipe 17 is sealed and rotated with the output end of the connecting pipe 401. This sealed and rotated connection structure is a conventional technical means in the example. Two air holes 1701, 1702, 1703 and 1704 are opened on the outer circumference of the air inlet regulating pipe 17. In this configuration, two air vents 1701 are linearly aligned, and two air vents 1704 and 1703 are linearly aligned. When air vent 1701 is connected to the second air inlet 1604, the first air inlet 1603 is isolated from the inner cavity of the air intake regulating pipe 17. When air vent 1702 is connected to the first air inlet 1603, the second air inlet 1604 is isolated from the inner cavity of the air intake regulating pipe 17. When air vent 1704 is connected to the second air inlet 1604, air vent 1703 is simultaneously connected to the first air inlet 1603. The external gas supply equipment continuously supplies low-temperature gas to the inlet regulating pipe 17 through the connecting pipe 401 on the fixed frame 4. The inlet regulating pipe 17 and the connecting pipe 401 are sealed and rotated together, and their positions can be flexibly adjusted. By rotating the inlet regulating pipe 17, three states can be achieved: air hole 1701 is connected to the second air inlet 1604 alone; air hole 2 is connected to the first air inlet 1603 alone; or air hole 4 is connected to the second air inlet 1604 and air hole 3 is connected to the first air inlet 1603 simultaneously. This allows the low-temperature gas to be selectively introduced into the large chamber 1601, the small chamber 1602, or both chambers at the same time, achieving the effect of graded buffering and vibration reduction for workpieces of different specifications.

[0040] In an embodiment of the present invention, the top of the platform 2 is provided with a plurality of air holes 6 201 and a plurality of air holes 7 202, the plurality of air holes 7 202 being arranged in a ring array, and the plurality of air holes 6 201 being arranged within the ring area formed by the plurality of air holes 7 202; the inner cavity of the platform 2 is provided with a plurality of elongated grooves 203 and a plurality of T-shaped grooves 204, the plurality of T-shaped grooves 204 being arranged in a ring array; the output end of exhaust channel one 1301 is connected to the inner cavity of the T-shaped groove 204 through the inner cavity of the connecting plate 12, the inner cavity of the impact-resistant plate 11 and the inner cavity of the platform 2, and the inner cavity of the T-shaped groove 204 is connected to the air holes 7 202; the output end of exhaust channel two 1401 is connected to the inner cavity of the elongated groove 203 through the inner cavity of the impact-resistant plate 11 and the inner cavity of the platform 2, and the inner cavity of the elongated groove 203 is connected to the air holes 6 201.

[0041] During the operation of the servo press, an external air supply device continuously supplies low-temperature gas to the inlet regulating pipe 17 via a connecting pipe 401. Combined with the adjustment of the rotation state of the inlet regulating pipe 17 by the rotary adjusting component 18, the low-temperature gas can selectively enter the large chamber 1601, the small chamber 1602, or both chambers simultaneously. Specifically, the low-temperature gas flow in the large chamber 1601 is discharged through the exhaust channel 1301 on the large-diameter piston plate 13, sequentially passing through the inner cavity of the connecting plate 12, the inner cavity of the impact-resistant plate 11, and the inner cavity of the platform 2, converging into the T-shaped grooves 204 in an annular array, and finally ejected from the annularly arranged air holes 202 at the top of the platform 2, achieving cooling of the annular area of ​​the platform 2. The low-temperature gas flow in the small chamber 1602 is discharged through the exhaust channel 1401 on the small-diameter piston column 14. The heat flows into the elongated groove 203 through the inner cavity of the impact-resistant plate 11 and the inner cavity of the platform 2, and then is ejected from the air hole 201 located in the annular area at the top of the platform 2, thereby achieving cooling of the central area of ​​the platform 2. When processing small workpieces, only the small chamber 1602 works, cooling only the central area; when processing medium-sized workpieces, only the large chamber 1601 works, cooling only the annular area; when processing large workpieces, both chambers work simultaneously, achieving full-range cooling of the platform 2. Thus, while meeting the requirements for impact resistance and vibration reduction, it achieves an appropriate cooling effect according to different workpiece specifications. This solves the problem of temperature rise adaptability when the servo press stamps workpieces, where the table surface generates heat due to workpiece plastic deformation heat transfer, vibration friction, etc., and large workpieces generate heat quickly during high-tonnage, high-frequency stamping, while small workpieces and low-strength materials generate less heat during stamping.

[0042] In an embodiment of the present invention, the rotary adjustment assembly 18 includes a motor 1801 mounted on the side wall of the anti-vibration cylinder 16. The output end of the motor 1801 is connected to a bevel gear 1802. A support frame 1803 is mounted on the top of the base plate 15. A bevel gear 1804, a gear 1805, a gear 1806, and a worm gear 1807 are rotatably arranged on the support frame 1803. The bevel gear 1802 meshes with the bevel gear 1804. The bevel gear 1804 is coaxially connected with the gear 1805. The gear 1805 meshes with the gear 1806. The gear 1806 is coaxially connected with the worm gear 1807. A worm wheel 1705 is connected to the outer circumferential wall of one end of the air intake adjustment pipe 17. The worm gear 1807 meshes with the worm wheel 1705.

[0043] When the rotary adjustment assembly 18 is working, the motor 1801 starts and outputs power, driving the bevel gear 1802 to rotate. The bevel gear 1802 meshes with the bevel gear 2 1804, causing the coaxially connected gear 3 1805 to rotate synchronously. The gear 3 1805 meshes with the gear 4 1806, driving the coaxial worm 1807 to rotate. The worm 1807 meshes with the worm wheel 1705 on the intake regulating pipe 17, ultimately transmitting power to the intake regulating pipe 17 to achieve precise adjustment of its rotation state, thereby switching the communication mode with the large chamber 1601 and the small chamber 1602.

[0044] In an embodiment of the present invention, the inner cavity of the vibration damping cylinder 16 is provided with two oil storage chambers 1605, which are used to contain lubricating oil. The top of the oil storage chamber 1605 is connected to an oil inlet 1607 through an oil passage 1606. The oil passage 1606 is connected to another oil passage 1606 through an oil passage 1608. The top of the oil storage chamber 1605 is provided with an exhaust hole 1609. The top of the oil storage chamber 1605 is connected to a plurality of oil outlet holes 1610, and the output ends of the plurality of oil outlet holes 1610 are arranged in a ring array in the small chamber. The inner wall of the large chamber 1602 is in contact with the outer wall of the small-diameter piston plate 14. Multiple oil outlet holes 1610 are arranged in a ring array on the inner wall of the large chamber 1601, and are in contact with the inner wall of the large-diameter piston plate 13. Furthermore, the bottom of the oil passage 1608 is connected to multiple oil outlet holes 1611, the output ends of which are arranged in a ring array on the inner circumference of the large chamber 1601, and are in contact with the outer wall of the large-diameter piston plate 13. An annular plug plate 1612 is slidably arranged in the oil storage chamber 1605. When the annular plug plate 1612 moves upward, it pushes the lubricating oil in the oil storage chamber 1605 to be discharged through the first oil outlet 1610 and the second oil outlet 1611. Multiple guide rods 1613 are connected to the top of the annular plug plate 1612, and these guide rods 1613 movably pass through the top of the vibration damping cylinder 16. An air intake channel 1614 is arranged below the annular plug plate 1612, connecting the bottoms of the two oil storage chambers 1605. When gas is supplied into the air intake channel 1614, positive pressure is generated, pushing the annular plug plate 1612 upward. The two oil storage chambers 1605 inside the vibration damping cylinder 16 can be replenished with lubricating oil through the oil inlet 1607 and the interconnected oil passages 1606 and 1608. When gas is delivered to the air intake channel 1614, the positive pressure generated pushes the annular plug plate 1612 in the oil storage chamber 1605 to move upward, thereby squeezing the lubricating oil out from multiple oil outlet holes 1610 and 1611, achieving precise lubrication between the large-diameter piston plate 13 and the large chamber 1601, and between the small-diameter piston column 14 and the small chamber 1602.

[0045] In an embodiment of the present invention, the pressurization regulating assembly 19 includes a pressure box 1901 installed on the outer wall of the vibration damping cylinder 16. A guide block 1902 is rotatably arranged on the inner circumference of the pressure box 1901. The guide block 1902 has a circular plate structure and is rotatably arranged on the outer circumference of the intake regulating pipe 17. An airflow channel 1903 is arranged in the inner cavity of the pressure box 1901. The top of the airflow channel 1903 is connected to a piston chamber 1904. The top of the piston chamber 1904 is connected to an air inlet 1905 and an air outlet 1906. A one-way valve 1907 is provided in the inner cavity of the air inlet 1905. The one-way valve 1907 allows external air to enter the piston chamber 1904. The inner cavity of the air outlet 1906 is provided with a one-way valve of the same structure. Valve 1908 is a one-way valve used to allow gas in piston chamber 1904 to be discharged through outlet channel 1906. The outlet end of outlet channel 1906 is connected to the inlet end of inlet channel 1614. A piston head 1909 is slidably arranged in piston chamber 1904. A movable rod 1910 is connected to the top of piston head 1909. A limiting groove 1911 is opened on the top of pressure box 1901. Movable rod 1910 moves through the top of limiting groove 1911. A limiting plate 1912 is connected to the outer circumference of movable rod 1910. A spring 1913 is arranged between limiting plate 1912 and the inner side wall of limiting groove 1911. Through the elastic force of spring 1913, piston head 1909 can be kept at the bottom of piston chamber 1904.

[0046] It is worth noting that the outer wall of the pressure box 1901 has an air groove 1914 communicating with its inner cavity, the outer wall of the guide block 1902 has an air groove 1915 communicating with its inner cavity, and the outer circumferential wall of the guide block 1902 has an arc-shaped groove 1916; the outer circumferential wall of the air intake regulating pipe 17 also has four air holes 1706, which are arranged in a four-corner orientation. When the air intake regulating pipe 17 rotates to different positions, one air hole 1706 always remains vertically upward, forming a linear alignment with the airflow channel 1903; when the guide block 1902 rotates at low speed, the vertically upward air hole 1706 can form an intermittent communication with the airflow channel 1903 through the air groove 1915, and the air groove 1914 can form an intermittent communication with the airflow channel 1903 through the arc-shaped groove 1916.

[0047] It is worth mentioning that a driven pulley 1917 is arranged on the outer wall of the guide block 1902, and a second motor 1918 is installed on the side wall of the vibration damping cylinder 16. The output end of the second motor 1918 is connected to a driving pulley 1919, which is connected to the driven pulley 1917 via a synchronous belt 1920. When the pressure regulating component 19 is working, the second motor 1918 starts, driving the driven pulley 1917 and the guide block 1902 to rotate at low speed through the driving pulley 1919 and the synchronous belt 1920. As the intake regulating pipe 17 rotates to different positions, one of the four corner vents 1706 on its outer circumference is always vertically upward and linearly aligned with the airflow channel 1903 in the pressure box 1901. This allows the vertically upward vent 1706 to pass through the air groove during the rotation of the guide block 1902. The guide block 1902 and the airflow channel 1903 form an intermittent connection. That is, when the guide block 1902 rotates to the point where the air groove 1915 and the air hole 1706 are connected, the airflow supplied by the external air supply equipment to the intake regulating pipe 17 will be delivered to the air groove 1915 through the vertically upward-facing air hole 1706, and then enter the piston chamber 1904 through the airflow channel 1903, pushing the piston head 1909 upward, compressing the air above, and causing the air above to enter the outlet channel 1904 through the one-way valve 1908. 06. Subsequently, the air enters the intake passage 1614, and the positive pressure generated pushes the annular plug plate 1612 in the oil storage chamber 1605 upward, thereby squeezing the lubricating oil out from multiple oil outlet holes 1610 and 1611, achieving precise lubrication between the large-diameter piston plate 13 and the large chamber 1601, and between the small-diameter piston column 14 and the small chamber 1602; as the guide block 1902 continues to rotate, the second air groove 1915 is misaligned with the airflow passage 1903, and the arc-shaped groove 1916 on its outer circumference interacts with the airflow. When channel 1903 is connected, air groove 1914 is connected to airflow channel 1903 through arc groove 1916. At this time, the area below piston head 1909 is connected to the outside through airflow channel 1903, arc groove 1916 and air groove 1914. The area below piston head 1909 loses high-pressure thrust. Through the elastic force of spring 1913, piston head 1909 is reset. During the reset process, negative pressure is formed above piston head 1909. External air is replenished through one-way valve 1907, completing one round of lubricating oil replenishment operation.

[0048] This invention designs a pressurization regulating component 19, which uses a motor 1918 to drive the guide block 1902 to rotate. This, combined with the intake regulating pipe 17 having a vertically upward-facing air vent 1706 that intermittently connects to the pressure box 1901, and the synergistic action of the spring 1913's reset and the one-way valves 1907 and 1908, forms an intermittent gas pressurization mechanism. This intermittently provides a stable positive pressure to the intake channel 1614 to push the annular piston plate 1612, achieving precise and intermittent lubrication between the large-diameter piston plate 13 and the large chamber 1601, and between the small-diameter piston rod 14 and the small chamber 1602. Intermittent replenishment avoids the waste caused by high single-supply oil volume. Intermittent replenishment can compensate for the rapid consumption of lubricating oil on the mating surfaces under vibration and impact, avoiding structural wear and motion stagnation caused by dry friction. At the same time, there is no need to add additional high-pressure oil supply equipment. The pressurized lubrication operation can be completed by using the airflow resources of the intake regulating pipe 17. This effectively solves the problems of untimely and uneven lubrication replenishment of the piston and chamber mating surfaces in traditional frames, as well as the problems of increased wear and decreased vibration reduction performance caused by lubrication failure under high-frequency impact. It further ensures the long-term stable operation of the piston-type buffer damping structure and extends the overall service life of the frame.

[0049] Working Principle: This embodiment provides an impact-resistant frame for a servo press. During use, the connection mode of the air intake regulating pipe 17 is switched by controlling the rotary adjustment component 18 according to the specifications of the workpiece to be processed. When processing small workpieces, the first air inlet 1701 of the air intake regulating pipe 17 is connected to the second air inlet 1604, allowing only low-temperature gas to be introduced into the small chamber 1602. When processing medium-sized workpieces, the second air inlet 1702 is connected to the first air inlet 1603, allowing only low-temperature gas to be introduced into the large chamber 1601. When processing large workpieces, the third air inlet 1703 is connected to the first air inlet 1603, and the fourth air inlet 1704 is connected to the second air inlet 1604. When the two chambers are connected, cryogenic gas is simultaneously introduced into them. When the impact vibration generated by the servo press is transmitted to the impact-resistant plate 11, the impact-resistant plate 11 pushes the large-diameter piston plate 13 to slide into the large chamber 1601 and the small-diameter piston column 14 to slide into the small chamber 1602. Since the diameter of the first air inlet 1603 is larger than that of the exhaust channel 1301 and the diameter of the second air inlet 1604 is larger than that of the exhaust channel 2 1401, the flow rate of cryogenic gas entering the chamber is greater than the discharge flow rate. A high-pressure environment is quickly formed in the chamber. The reverse thrust of the high-pressure gas buffers the piston impact movement. Vibration energy is consumed through the damping effect of gas compression, thereby achieving vibration reduction. Meanwhile, the low-temperature airflow in the large chamber 1601 is discharged through the exhaust channel 1301, and flows into the T-shaped groove 204 through the inner cavity of the connecting plate 12, the inner cavity of the impact-resistant plate 11, and the inner cavity of the platform 2 in sequence. Finally, it is ejected from the air hole 202 arranged in a ring on the top of the platform 2 to cool the annular area of ​​the platform 2. The low-temperature airflow in the small chamber 1602 is discharged through the exhaust channel 1401, and flows into the long groove 203 through the inner cavity of the impact-resistant plate 11 and the inner cavity of the platform 2. It is ejected from the air hole 201 in the central area of ​​the top of the platform 2 to achieve cooling of the corresponding area and adapt to the heat generation requirements of different workpiece processing. When lubrication is required, start motor 1918, which drives driven pulley 1917 and guide block 1902 to rotate at low speed via drive pulley 1919 and synchronous belt 1920. The intake regulating pipe 17 always has a vertically upward-facing air hole 1706 aligned with the airflow channel 1903. When the guide block 1902 rotates, air hole 1706 is intermittently connected to the airflow channel 1903 via air groove 1915. The airflow in the intake regulating pipe 17 enters the piston chamber 1904, pushing the piston head 1909 upwards. Compressed air passes through check valve 1908 and outlet channel 1906 into the intake channel 1614, generating positive pressure that pushes the oil accumulator. The annular plug plate 1612 inside chamber 1605 moves upward, squeezing out lubricating oil from oil outlet 1610 and oil outlet 1611, providing lubrication for the mating surfaces of the large-diameter piston plate 13 and the large chamber 1601, and the small-diameter piston column 14 and the small chamber 1602. When the arc groove 1916 of the guide block 1902 is connected to the airflow channel 1903, the piston chamber 1904 is connected to the outside, and the piston head 1909 is reset under the action of the spring 1913. External air is replenished through the one-way valve 1907, completing one round of lubrication replenishment. Intermittent replenishment avoids lubricating oil waste and at the same time compensates for lubrication consumption under high-frequency impact, ensuring the stable operation of the buffer damping structure.

[0050] The embodiments disclosed in this invention are preferred embodiments, but are not limited thereto. Those skilled in the art can easily understand the spirit of this invention based on the above embodiments and make different extensions and variations, but as long as they do not depart from the spirit of this invention, they are all within the protection scope of this invention.

Claims

1. An impact resistant frame for a servo press, characterized by, It includes a frame body (1), a platform (2) connected to the top of the frame body (1), and a press body (3) installed on the top of the platform (2). The frame body (1) includes an impact-resistant plate (11) arranged at the bottom of the platform (2). The bottom of the impact-resistant plate (11) is connected to a large-diameter piston plate (13) through multiple connecting plates (12). The bottom of the impact-resistant plate (11) is also connected to multiple small-diameter piston columns (14). The frame body (1) also includes a base plate (15). The base plate (15) is installed on the ground to form a foundation support. The top of the base plate (15) is connected to an anti-vibration cylinder (16). The anti-vibration cylinder (16) has a large chamber (1601) and multiple small chambers (1602) arranged inside. The large-diameter piston plate (13) is slidably arranged in the large chamber (1601) to form a piston-type buffer damping structure. The small-diameter piston columns (14) are slidably arranged in the small chambers (1602) to form a piston-type buffer damping structure. The anti-vibration cylinder (16) has an air inlet regulating pipe (17) arranged rotatably inside. The air inlet regulating pipe (17) is used to circulate low-temperature gas. The anti-vibration cylinder (16) has a rotation regulating component (18) and a pressure regulating component (19) arranged on its side. The rotation adjustment assembly (18) is used to adjust the rotation state of the intake adjustment pipe (17), so that the intake adjustment pipe (17) can be selectively connected to the large chamber (1601) alone, connected to the small chamber (1602) alone, or connected to both the large chamber (1601) and the small chamber (1602) simultaneously. The large chamber (1601) is provided with a first air inlet (1603) at the bottom, and the small chamber (1602) is provided with a second air inlet (1604) at the bottom. The large-diameter piston plate (13) has multiple exhaust channels (1301) from top to bottom, and the small-diameter piston column (14) has exhaust channels (1401) from top to bottom. The diameter of the exhaust channel (1301) is smaller than the diameter of the first air inlet (1603), and the diameter of the exhaust channel (1401) is smaller than the diameter of the second air inlet (1604). The inner side wall of the frame body (1) is connected to a fixed frame (4), and the side wall of the fixed frame (4) is provided with a connecting pipe (401). The air inlet end of the connecting pipe (401) is connected to an external air supply device, and the air inlet end of the air inlet regulating pipe (17) is sealed and rotated with the output end of the connecting pipe (401). The outer circumferential wall of the intake regulating pipe (17) is provided with a plurality of air holes one (1701), air holes two (1702), air holes three (1703) and a plurality of air holes four (1704). Among them, along the axial direction of the pipe body of the intake regulating pipe (17), the plurality of air holes one (1701) are linearly aligned and distributed, and the plurality of air holes four (1704) are linearly aligned with the air holes three (1703). When the first air inlet (1701) is connected to the second air inlet (1604), the first air inlet (1603) is isolated from the inner cavity of the air intake regulating pipe (17); when the second air inlet (1702) is connected to the first air inlet (1603), the second air inlet (1604) is isolated from the inner cavity of the air intake regulating pipe (17); when the fourth air inlet (1704) is connected to the second air inlet (1604), the third air inlet (1703) is simultaneously connected to the first air inlet (1603).

2. An impact resistant frame for a servo press according to claim 1, wherein The top of the platform (2) is provided with a plurality of air holes six (201) and a plurality of air holes seven (202), the plurality of air holes seven (202) are arranged in a ring array, and the plurality of air holes six (201) are arranged in the middle of the ring area formed by the plurality of air holes seven (202); The inner cavity of the platform (2) is provided with a plurality of elongated grooves (203) and a plurality of T-shaped grooves (204), and the plurality of T-shaped grooves (204) are arranged in a ring array; the output end of the exhaust channel one (1301) is connected to the inner cavity of the T-shaped groove (204) through the inner cavity of the connecting plate (12), the inner cavity of the impact-resistant plate (11) and the inner cavity of the platform (2), and the inner cavity of the T-shaped groove (204) is connected to the air hole seven (202); the output end of the exhaust channel two (1401) is connected to the inner cavity of the elongated groove (203) through the inner cavity of the impact-resistant plate (11) and the inner cavity of the platform (2), and the inner cavity of the elongated groove (203) is connected to the air hole six (201).

3. The impact-resistant frame of a servo press according to claim 2, characterized in that, The rotary adjustment assembly (18) includes a motor (1801) installed on the side wall of the anti-vibration cylinder (16). The output end of the motor (1801) is connected to a bevel gear (1802). A support frame (1803) is installed on the top of the base plate (15). A bevel gear (1804), a gear (1805), a gear (1806), and a worm gear (1807) are rotatably arranged on the support frame (1803). The bevel gear (1802) meshes with the bevel gear (1804). The bevel gear (1804) is coaxially connected with the gear (1805). The gear (1805) meshes with the gear (1806). The gear (1806) is coaxially connected with the worm gear (1807). A worm gear (1705) is connected to the outer circumference of one end of the intake regulating pipe (17), and the worm (1807) is meshed with the worm gear (1705).

4. The impact-resistant frame of a servo press according to claim 3, characterized in that, The inner cavity of the vibration damping cylinder (16) is provided with multiple oil storage chambers (1605). The oil storage chambers (1605) are used to contain lubricating oil. The top of the oil storage chambers (1605) is connected to an oil inlet (1607) through an oil passage (1606). The oil passage (1606) is connected to another oil passage (1606) through an oil passage (1608). The top of the oil storage chambers (1605) is provided with an exhaust hole (1609). The top of the oil storage chamber (1605) is connected to a plurality of oil outlet holes (1610). The output ends of the plurality of oil outlet holes (1610) are arranged in a ring array on the inner wall of the small chamber (1602) and are in contact with the outer wall of the small diameter piston column (14). The output ends of the plurality of oil outlet holes (1610) are arranged in a ring array on the inner wall of the large chamber (1601) and are in contact with the inner wall of the large diameter piston plate (13). Furthermore, the bottom of the second oil passage (1608) is connected to multiple second oil outlet holes (1611), and the output ends of the multiple second oil outlet holes (1611) are arranged in a ring array on the inner wall of the large chamber (1601) and are in a close fit with the outer wall of the large diameter piston plate (13).

5. The impact-resistant frame of a servo press according to claim 4, characterized in that, An annular plug plate (1612) is slidably arranged inside the oil storage chamber (1605). When the annular plug plate (1612) moves upward, it pushes the lubricating oil in the oil storage chamber (1605) to be discharged to the first oil outlet (1610) and the second oil outlet (1611). A plurality of guide rods (1613) are connected to the top of the annular plug plate (1612). The guide rods (1613) move through the top of the vibration damping cylinder (16). An air intake channel (1614) is arranged below the annular plug plate (1612). The bottoms of the two oil storage chambers (1605) are connected through the air intake channel (1614). When gas is delivered into the air intake channel (1614), positive pressure is generated to push the annular plug plate (1612) to move upward.

6. The impact-resistant frame of a servo press according to claim 5, characterized in that, The pressurization regulating component (19) includes a pressure box (1901) installed on the outer wall of the anti-vibration cylinder (16). A guide block (1902) is rotatably arranged on the inner circumference of the pressure box (1901). The guide block (1902) is a circular plate structure and is rotatably arranged on the outer circumference of the air intake regulating pipe (17). The pressure box (1901) has an airflow channel (1903) inside its cavity. The top of the airflow channel (1903) is connected to a piston chamber (1904). The top of the piston chamber (1904) is connected to an air inlet (1905) and an air outlet channel (1906). The air inlet (1905) is equipped with a one-way valve (1907) inside its cavity. The one-way valve (1907) allows external air to enter the piston chamber (1904). The air outlet channel (1906) is equipped with a one-way valve (1908) with the same structure inside its cavity. The one-way valve (1908) allows gas in the piston chamber (1904) to be discharged through the air outlet channel (1906). The output end of the air outlet channel (1906) is connected to the inlet end of the air inlet channel (1614). A piston head (1909) is slidably arranged in the piston chamber (1904). A movable rod (1910) is connected to the top of the piston head (1909). A limiting groove (1911) is opened on the top of the pressure box (1901). The movable rod (1910) moves through the top of the limiting groove (1911). A limiting plate (1912) is connected to the outer circumference of the movable rod (1910). A spring (1913) is arranged between the limiting plate (1912) and the inner side wall of the limiting groove (1911).

7. The impact-resistant frame of a servo press according to claim 6, characterized in that, The outer wall of the pressure box (1901) is provided with an air groove (1914) communicating with its inner cavity, the outer wall of the guide block (1902) is provided with an air groove (1915) communicating with its inner cavity, and the outer circumferential wall of the guide block (1902) is provided with an arc-shaped groove (1916). The outer circumference of the intake regulating pipe (17) is also provided with a plurality of air holes (1706). The plurality of air holes (1706) are arranged in a four-corner orientation. When the intake regulating pipe (17) rotates to different positions, one of the air holes (1706) always remains vertically upward and forms a linear alignment with the airflow channel (1903). When the guide block (1902) rotates at low speed, the air hole (1706) that remains vertically upward can form an intermittent connection with the airflow channel (1903) through the air groove (1915), and the air groove (1914) can form an intermittent connection with the airflow channel (1903) through the arc groove (1916).

8. The impact-resistant frame of a servo press according to claim 7, characterized in that, A driven pulley (1917) is arranged on the outer wall of the guide block (1902), and a second motor (1918) is also installed on the side wall of the vibration damping cylinder (16). The output end of the second motor (1918) is connected to a driving pulley (1919), and the driving pulley (1919) is connected to the driven pulley (1917) through a synchronous belt (1920).

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