A composite processing equipment for metal sealing gaskets

Abstract

The application relates to the technical field of sealing piece processing equipment, and discloses a composite processing equipment for metal sealing gaskets, which comprises a processing table, four processing bins are arranged in the circumferential direction on the top of the processing table, and an opening sliding cover for workers to put up and down pieces and observe the processing condition is slidably connected to one side of each processing bin; the four processing bins are sequentially a first processing bin, a second processing bin, a third processing bin and a fourth processing bin. By increasing and arranging a terminal processing mechanism, after the assembly of the combined sealing piece is completed, the mechanism can not only avoid the problems of uneven shrinkage rate of metal and rubber and rubber cracking and warping due to sudden temperature drop through the medium-temperature heat preservation working condition, so that the temperatures of the two materials are kept synchronous and uniform, but also can discharge the air on the adhering surface through roller pressing and cooperation with an exhaust structure, so that a negative pressure adsorption state is formed between the rubber and the metal, and the leakage hidden danger caused by micro gaps is completely eliminated.

Description

Technical Field

[0001] This invention relates to the field of sealing component processing equipment technology, specifically to a composite processing equipment for metal sealing gaskets. Background Technology

[0002] Seals are key components used in industry to prevent the leakage of fluids or solid particles. Based on their material, they can be divided into three main categories: metal seals, rubber seals, and combined seals. Among these, combined seals are most widely used in hydraulic systems. These seals primarily use metal seals, leveraging the high strength and pressure resistance of the metal material to provide stable support for the sealing structure. Simultaneously, grooves specifically designed for installing rubber seals are machined into the outer wall of the metal seal. The rubber seal is then inserted into these grooves, combining the elasticity and sealing properties of the rubber material to achieve a dual sealing effect, thus balancing the structural stability of the metal seal with the conformal sealing performance of the rubber seal.

[0003] Currently, the initial assembly of combined seals is typically performed in a high-temperature environment, utilizing the principle of thermal expansion and contraction to allow the metal seals to expand appropriately, thus facilitating the insertion of the rubber seals. However, existing assembly methods mostly rely on manual operation. This method not only easily leads to twisting, eccentricity, and uneven tightness of the rubber seals during assembly, affecting assembly accuracy, but also introduces potential problems for subsequent use. After assembly, the combined seals are directly placed in an external room temperature environment. The sudden drop in temperature causes the rubber seals to shrink too quickly, resulting in a sharp increase in internal stress and making them prone to cracking and deformation. Simultaneously, due to the difference in shrinkage rates between metal and rubber, rapid cooling can cause gaps, localized warping, and separation at the contact surfaces. Furthermore, the rubber will freely shrink and arch towards the groove during cooling and contraction, failing to fit tightly against the groove bottom, ultimately creating tiny gaps between the rubber and metal, leading to micro-leakage. This further results in uneven stress on the seals, severely affecting the sealing performance and service life of the combined seals. Therefore, those skilled in the art have proposed a composite processing equipment for metal sealing gaskets to solve the aforementioned technical problems. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a composite processing equipment for metal sealing gaskets, which solves the problems of warping and poor sealing caused by the shrinkage difference between rubber and metal parts due to a sudden drop in temperature during the processing of combined sealing components.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a composite processing equipment for metal sealing gaskets, comprising, The processing table has four processing compartments arranged in a circular array on its top. Each processing compartment has a sliding cover on one side that allows workers to load and unload parts and observe the processing status. The four processing compartments are, in order, the first processing compartment, the second processing compartment, the third processing compartment, and the fourth processing compartment; Among them, the first and second processing chambers are high-temperature processing chambers, the third processing chamber is a medium-temperature processing chamber, and the fourth processing chamber is a normal-temperature processing chamber. The composite transfer mechanism is set inside the machining table and is used to transfer the sealed workpiece between subsequent composite machining stations after turning. The molding and release mechanism is located in the first processing chamber and is used to re-shape the metal seal after the initial processing and to release residual stress. The accessory assembly mechanism, located in the second processing chamber, is used for the automatic assembly of rubber sealing accessories after the metal seals have been processed by the plastic release mechanism. The terminal processing mechanism, located within the third and fourth processing compartments, is used to perform terminal processing on the assembled seals after the accessories have been assembled.

[0006] Preferably, the composite transfer mechanism includes a cross seat, a cross seat is fixedly connected to the top center of the processing table, a center seat that can move up and down is slidably connected to the center of the cross seat, a hydraulic cylinder is provided at the top center of the inner side of the cross seat, and the top of the rod of the hydraulic cylinder is connected to the center of the center seat.

[0007] Preferably, the composite transfer mechanism further includes a bottom partition plate, a bottom partition plate is fixedly connected to the inner center of the processing table, a spline sleeve is rotatably connected to the top center of the bottom partition plate, a matching spline shaft is meshed inside the spline sleeve, a rotating seat is rotatably connected to the inner top of the processing table, and the top center of the rotating seat is connected to the bottom of the center seat, the bottom center of the rotating seat is connected to the top of the spline shaft, a stepper motor is provided at the bottom center of the bottom partition plate, and the output end of the stepper motor is connected to the center of the spline sleeve.

[0008] Preferably, the composite transfer mechanism further includes a mounting base, the top circumferential array of the rotating seat has four mounting bases, and the top of the mounting base extends outward through the corresponding position of the top of the processing table, the bottom circumferential array of the mounting base has four drive motors, and the output end of the drive motor is connected to the middle of the corresponding mounting base.

[0009] Preferably, the molding release mechanism includes a driven roller pressing seat assembly. Each of the inner bottom sides of the processing chamber is provided with a driven roller pressing seat assembly, and the bottom of the driven roller pressing seat assembly is rotatably connected to the corresponding position on the top of the processing table. A circular top seat is fixedly connected to the middle of the inner top of the first processing chamber, and a plurality of planar molding roller seats are rotatably connected to the bottom of the circular top seat at equal intervals.

[0010] Preferably, the accessory assembly mechanism includes a hollow cylinder seat. The hollow cylinder seat is fixedly connected to the middle of the inner top of the second processing chamber. A friction inclined wall material drop seat is provided in the upper middle part of the outer wall of the hollow cylinder seat. Multiple slots are equally spaced in the lower middle part of the outer wall of the hollow cylinder seat. A lever seat is rotatably connected inside each slot. A rubber connecting strip is provided on the top of the inner wall of each lever seat. The other end of the rubber connecting strip is connected to the corresponding position on the inner wall of the hollow cylinder seat.

[0011] Preferably, the accessory assembly mechanism further includes a circular airbag seat. A circular airbag seat is provided in the middle of the inner side of the hollow cylinder seat. The outer wall of the circular airbag seat has a plurality of outward protrusions that move outward when inflated in a circumferential array. A connecting seat is provided on the end of each outward protrusion away from the circular airbag seat. The side of the connecting seat away from the circular airbag seat is connected to the corresponding position on the inner side of the corresponding lever seat. A micro air pump is provided in the middle of the top of the second processing chamber. The exhaust end of the micro air pump is connected to the interior of the circular airbag seat through a connecting pipe.

[0012] Preferably, the terminal processing mechanism includes a metal ring seat, and the third processing chamber is provided with a metal ring seat inside. The metal ring seat is sleeved on the corresponding mounting base, and a rubber seal matching the shape of its inner wall is provided on the middle of the outer side of the metal ring seat.

[0013] Preferably, the terminal processing mechanism further includes a superimposed sealing strip. Superimposed sealing strips are provided on both sides of the inner wall of the rubber seal. When the superimposed sealing strip is squeezed, it deforms and fills and seals the residual gap between the rubber seal and the inner wall of the metal ring seat. Dovetail grooves are provided in the middle of the upper and lower sides of the superimposed sealing strip. A concave sealing groove is provided in the middle of the inner wall of the rubber seal, and the inner wall of the concave sealing groove is smooth.

[0014] Preferably, the terminal processing mechanism further includes a central rubber ring seat. The third processing chamber is provided with a plurality of central rubber ring seats. The central rubber ring seats are respectively sleeved on the middle of the outer wall of the driven roller pressing seat group in the third processing chamber. A plurality of extrusion exhaust channels are equidistantly arranged near the edge of the dovetail groove. The interior of the extrusion exhaust channel is connected to the interior of the concave sealing groove at the corresponding position. The inner middle of each extrusion exhaust channel is provided with two diaphragm seats with one end in contact. The middle of the diaphragm seat is provided with a curved part. The end of the diaphragm seat away from the inner wall of the extrusion exhaust channel is provided with a overlapping part that is in contact with each other.

[0015] Working Principle: When processing the combined metal sealing gasket, the composite transfer mechanism is first activated. The operator smoothly opens the sliding cover on the first processing chamber, then places the precision-machined metal ring seat onto the mounting base inside the first processing chamber. After positioning, the operator completely closes the first processing chamber to ensure the stability of the processing environment inside. After the metal ring seat in the first processing chamber has undergone the corresponding processing, and the operator is ready to proceed to the next step of the composite processing flow, the hydraulic cylinder on the cross seat is activated. After activation, the cylinder's rod smoothly extends outwards, simultaneously driving the bottom center seat to move coaxially downwards. During the downward movement of the center seat, it also drives the rotating seat inside the processing table and the spline shaft at the bottom of the rotating seat to move downwards synchronously. After the spline shaft moves downwards, it precisely embeds into the spline sleeve, achieving precise engagement of the transmission components. After the mounting base is fully inserted into the processing table, the stepper motor at the bottom of the bottom partition starts running. When the stepper motor shaft rotates, it synchronously drives the spline sleeve on it to rotate. The spline sleeve then drives the spline shaft, rotating seat, mounting base, and the metal ring seat it carries to accurately rotate to the corresponding position in the second processing chamber through transmission. After the rotation is in place, the hydraulic cylinder on the cross seat starts again. The rod retracts and drives the center seat, bottom rotating seat, and spline shaft to move upward synchronously, so that the metal ring seat on the mounting base, which has been processed in the first processing chamber, can smoothly enter the second processing chamber to carry out the next round of composite processing. This cycle continues until the workpiece is finally processed in the fourth processing chamber and stabilized. The operator can then remove the processed combined metal sealing gasket by opening and closing the sliding cover on the fourth processing chamber, thus successfully completing the automated transfer process between the processing stations in the multi-composite processing process. Simultaneously, the molding release mechanism is activated. When the worker installs the machined metal ring seat on the mounting base inside the first processing chamber, the first processing chamber maintains a high-temperature operating condition. Through heat conduction, the metal ring seat on the mounting base is heated synchronously, effectively increasing the initial temperature of the metal ring seat before processing and ensuring the plasticity of subsequent molding processing. Then, the drive motor located at the bottom of the first processing chamber on the rotating seat is activated. When the shaft of the drive motor rotates, it drives the mounting base inside the first processing chamber and the metal ring seat sleeved on the outer wall to rotate synchronously at a uniform speed. During the rotation of the metal ring seat, the friction of the contact surface synchronously drives the driven roller pressing seat group inside the first processing chamber to rotate in tandem.Under the synchronous and uniform rolling action of multiple sets of driven roller pressing seats, on the one hand, the machined metal ring seat can be subjected to pre-processing rounding and shaping treatment to avoid the problem of fitting deviation when combined with rubber seals. On the other hand, the multiple rolling forces can release the residual internal stress after machining of the metal ring seat and eliminate the hidden danger of stress concentration. While the metal ring seat rotates in the first processing chamber, the planar shaping roller seat on the circular top seat in the processing table starts to operate synchronously. The bottom surface of the planar shaping roller seat is closely attached to the upper surface of the metal ring seat on the mounting base. During the process of the metal ring seat being driven to rotate, its end face is synchronously and uniformly rolled by multiple sets of planar shaping roller seats. This three-dimensional rolling method can not only be combined with the machining process but also achieve the desired effect. The side roller pressing of the driven roller pressing seat assembly further eliminates residual stress inside the metal ring seat and can also level and repair the metal ring seat with surface misalignment and deformation after machining, successfully completing the plastic forming and rounding processing and stress-assisted release treatment of the metal part at the front end of the combined sealing gasket; then the accessory assembly mechanism is started, and after the metal ring seat is processed by the plastic forming and release mechanism, it enters the second processing chamber through the precise rotation of the composite transfer mechanism. At this time, the second processing chamber maintains a continuous high temperature condition, and the metal ring seat and the rubber seal on the hollow cylinder seat are in a state of thermal expansion, which greatly improves the plasticity of the material and makes the assembly operation easier. When assembling the rubber seal, the lever seat on the hollow cylinder seat initially... Positioned in a V-shape, the structure, with its upper part contracting inward and lower part expanding outward, provides stable support and precise positioning for the rubber seal sliding down from the friction inclined wall of the hollow cylinder seat. During formal assembly, the miniature air pump on the second processing chamber starts operating, injecting gas at a constant speed into the circular airbag seat inside the hollow cylinder seat through a connecting pipe. As the gas volume inside the circular airbag seat increases, its outward protrusion is pushed outward by the internal air pressure, causing the connecting seat on the protrusion to move outward as well. Simultaneously, this causes the upper part of the lever seat to expand outward, changing the lever seat from a V-shape to an inverted V-shape. After being guided and guided by multiple sets of lever seats, the rubber seal smoothly slides down to the metal... Located on the outer side of the ring seat, the traction and expansion force on the rubber seal disappears, and the rubber seal, which is in a state of thermal expansion, is then tightly fitted onto the preset position on the outer wall of the metal ring seat. After assembly, the gas in the circular airbag seat is discharged at a uniform speed, restoring to the initial air pressure state, and the outward protrusion is reset. At the same time, the lever seat is synchronously reset by the stretched and opened rubber connecting belt, restoring the initial structural shape and preparing for subsequent continuous processing, thus completing the precise assembly of the rubber accessory. Afterward, the terminal processing mechanism is started. After the metal ring seat is processed by the accessory assembly mechanism, it is transferred into the third processing chamber through the composite transfer mechanism. At this time, the metal ring seat and the rubber seal have completed the initial assembly.The drive motor at the bottom of the third processing chamber starts immediately. As the shaft rotates, it drives the driven roller press assembly inside the third processing chamber to rotate synchronously. Simultaneously, the driven roller press assembly drives the central rubber ring seat on it to rotate. During the rotation of the central rubber ring seat, it performs uniform roller pressing and bonding of the rubber seals mounted on the metal ring seat. When the central rubber ring seat presses the rubber seals, the gas in the cavity between the concave sealing groove on the rubber seal and the inner wall of the metal ring seat is gradually compressed. The compressed gas enters the compression exhaust channel along the channel. As the gas in the concave sealing groove is continuously compressed, gas continuously flows into the compression exhaust channel. When the gas pressure in the compression exhaust channel reaches a threshold, the gas breaks through the overlapping part on the diaphragm seat and is discharged to the outside. However, due to the influence of the curved part on the diaphragm seat, external gas cannot enter through the compression exhaust channel. Between the metal ring seat and the rubber seal, after the air pressure in the extrusion exhaust channel dissipates, the curved part on the diaphragm seat drives the overlapping part to automatically reset and reclose the extrusion exhaust channel. During this process, the gas in the concave sealing groove and the cavity inside the metal ring seat is completely emptied, creating a negative pressure state inside the concave sealing groove. This, combined with the deformed overlapping sealing strip, fills the gap at the edge of the sealing metal ring seat, allowing the rubber seal to firmly adhere to the metal ring seat. At the same time, the rubber seal and the metal ring seat are matched with corresponding extrusion exhaust channels, achieving a seamless and tight fit between the inner edges of the two. Meanwhile, the temperature in the third processing chamber is moderately lower than that in the first two stations, keeping the metal ring seat and the rubber seal in a medium-temperature insulation state during assembly and rolling, ensuring that the temperature of the metal frame and the rubber parts is uniform and consistent, and avoiding the risk of deformation caused by temperature differences. After the rolling and temperature control processes in the third processing chamber are completed, the composite transfer mechanism is restarted to transfer the processed parts to the fourth processing chamber. The metal ring seat and rubber seals in the fourth processing chamber shrink slowly and synchronously according to the principle of thermal expansion and contraction under the influence of the ambient temperature and low temperature environment. At the same time, the stepper motor at the bottom of the fourth processing chamber starts, driving the mounting base and the processed parts on it to rotate at a uniform speed. In conjunction with the driven roller pressing seat group in the fourth processing chamber, the rubber seals are rolled evenly at multiple angles under the ambient temperature and low temperature environment to complete the final shrinkage, bonding and shaping, realizing the final fine processing of the combined metal sealing gasket. After the rolling shrinkage process is completed in the fourth processing chamber, the processed parts are placed in the chamber for static stabilization at room temperature. After the internal stress is completely released and the structural shape is completely fixed, the staff can open the sliding cover to take out the processed combined metal sealing gasket and collect and classify it.

[0016] This invention provides a composite processing device for metal sealing gaskets. It has the following beneficial effects: 1. This invention, by adding and setting a composite transfer mechanism, enables automated and precise transfer of the metal ring seat between different temperature processing chambers during the processing of combined seals. This completely replaces manual transfer operations, avoiding problems such as workpiece displacement and collisions during station switching, and ensuring the continuity and stability of each composite processing step. Secondly, through the precise meshing transmission of the spline shaft and spline sleeve, combined with the lifting drive of the hydraulic cylinder, the coaxiality and positioning accuracy of the workpiece rotation can be guaranteed, allowing the workpiece to accurately enter the corresponding processing station. This processing method not only significantly improves the overall automation level of processing, but also maintains the stability of the temperature field environment in each processing chamber, avoiding sudden temperature changes in the workpiece due to frequent manual handling. At the same time, the four-station synchronous cycle mode can effectively improve processing efficiency and make the composite processing process more orderly and standardized.

[0017] 2. By adding and setting a molding release mechanism, this invention can perform all-round rolling and rounding of the machined metal ring seat under high-temperature conditions during the processing of the combined seal. This effectively corrects the dimensional deviations of the workpiece and avoids problems such as misalignment and uneven sealing force when combined with the rubber seal. On the other hand, through the synergistic rolling action of the side and the plane, the internal stress remaining after the machining of the metal ring seat can be fully released, eliminating the hidden danger of deformation in the later stage caused by stress concentration and improving the structural stability of the metal matrix. At the same time, the high-temperature environment can improve the plasticity of the metal material, making the rounding and stress release effects more significant. In addition, the three-dimensional rolling can also smooth out the deformation defects on the surface of the workpiece, laying the foundation for the precise assembly of the rubber parts in the future, thus improving the molding quality of the combined seal from the front end.

[0018] 3. By adding and setting an accessory assembly mechanism, this invention can automatically assemble rubber seals under high-temperature thermal expansion conditions, completely replacing manual operation and fundamentally avoiding problems such as twisting, eccentricity, and uneven tightness of rubber parts during assembly, ensuring the accuracy of the assembly position. Moreover, the mechanism achieves shape transformation through airbag-driven lever seat, and works with friction inclined wall material drop seat to smoothly guide and sleeve the rubber parts. The assembly process is free of scratches and jamming, and can completely protect the structural shape of the rubber parts. In addition, the high-temperature environment causes both metal and rubber to be in an expanded state, which greatly reduces the assembly resistance. The reset design of the rubber connecting strip can also allow the assembly structure to work cyclically, adapting to the needs of continuous processing and significantly improving the qualification rate and stability of the combined assembly.

[0019] 4. By adding and setting a terminal processing mechanism, this invention not only avoids uneven shrinkage rates and rubber cracking and warping caused by sudden temperature drops in the metal and rubber under medium-temperature insulation conditions, keeping the temperature of the two materials synchronous and uniform, but also removes air from the bonding surface through roller pressing and exhaust structure, creating a negative pressure adsorption state between the rubber and metal, completely eliminating the leakage risk caused by micro-gap. Moreover, it can achieve slow shrinkage and multi-angle roller pressing and shaping of the workpiece under normal temperature conditions, and further release internal stress with static stabilization process, making the combined structure more robust. The deformation filling of the overlapping sealing strip can also seal edge gaps, and the stepped temperature zone design can also optimize the bonding effect of thermal expansion and contraction, comprehensively improving the sealing performance and service life of the combined seal, making it better adaptable to complex operating conditions. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the top structure of the processing table of the present invention; Figure 3 This is a cross-sectional view of the internal structure of the processing table of the present invention; Figure 4 This is a partial structural diagram of the circular top seat of the present invention; Figure 5 This is a partial structural diagram of the hollow cylindrical base of the present invention; Figure 6 This is a partial structural diagram of the circular airbag seat of the present invention; Figure 7 This is a partial structural diagram of the metal ring seat of the present invention; Figure 8 This is a schematic diagram of the rubber seal structure of the present invention; Figure 9 This is a schematic plan view of the internal structure of the extrusion exhaust channel of the present invention.

[0021] The components include: 1. Processing table; 2. Center seat; 3. Opening sliding cover; 4. Miniature air pump; 5. Cross seat; 6. Hydraulic cylinder; 7. Processing chamber; 8. Hollow cylinder seat; 9. Driven roller pressing seat assembly; 10. Center rubber ring seat; 11. Lever seat; 12. Mounting base; 13. Rotating seat; 14. Bottom partition; 15. Splined sleeve; 16. Stepper motor; 17. Splined shaft; 18. Drive motor; 19. Flat plastic forming roller seat; 20. Friction inclined wall material feeding seat; 21. Rubber connecting belt; 22. Outer protrusion; 23. Circular airbag seat; 24. Groove; 25. Connecting seat; 26. Metal ring seat; 27. Rubber seal; 28. Overlapping sealing strip; 29. ​​Inner concave sealing groove; 30. Extrusion exhaust channel; 31. Dovetail groove; 32. Bending part; 33. Diaphragm seat; 34. Overlapping part; 35. Circular top seat. Detailed Implementation

[0022] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Please see the appendix Figure 1 - Appendix Figure 2 This invention provides a composite processing equipment for metal sealing gaskets, including a processing table 1. The top of the processing table 1 has four processing chambers 7 arranged in a circular array. Each processing chamber 7 has a sliding cover 3 on one side for workers to load and unload parts and observe the processing status. The four processing chambers 7 are sequentially designated as a first processing chamber 7, a second processing chamber 7, a third processing chamber 7, and a fourth processing chamber 7. The first and second processing chambers 7 are high-temperature processing chambers 7, the third processing chamber 7 is a medium-temperature processing chamber 7, and the fourth processing chamber 7 is a room-temperature processing chamber 7. Please see the appendix Figure 3 The composite transfer mechanism is set inside the machining table 1 and is used for the transfer of the sealed workpiece between subsequent composite machining stations after turning. The composite transfer mechanism includes a cross seat 5. The cross seat 5 is fixedly connected to the top center of the processing table 1. The center seat 2, which can move up and down, is slidably connected to the center of the cross seat 5. A hydraulic cylinder 6 is provided at the top center of the inner side of the cross seat 5, and the top of the rod of the hydraulic cylinder 6 is connected to the center of the center seat 2.

[0024] When the composite transfer mechanism is started, the operator first smoothly opens the sliding cover 3 on the first processing chamber 7, and then puts the metal ring seat 26, which has been precision machined by turning, onto the mounting base 12 inside the first processing chamber 7. After the positioning is completed, the operator then completely closes the first processing chamber 7 to ensure the stability of the processing environment inside the chamber. When the corresponding processing of the metal ring seat 26 in the first processing chamber 7 is completed and the next process of the composite processing is about to be advanced, the hydraulic cylinder 6 on the cross seat 5 is started. After the hydraulic cylinder 6 is started, its rod is pushed out smoothly. At the same time as the rod extends, it simultaneously drives the center seat 2 at the bottom to move down coaxially.

[0025] The composite transfer mechanism also includes a bottom partition 14. The bottom partition 14 is fixedly connected to the middle of the inner side of the processing table 1. A spline sleeve 15 is rotatably connected to the middle of the top of the bottom partition 14. A matching spline shaft 17 is meshed inside the spline sleeve 15. A rotating seat 13 is rotatably connected to the top of the inner side of the processing table 1. The middle of the top of the rotating seat 13 is connected to the bottom of the center seat 2. The middle of the bottom end of the rotating seat 13 is connected to the top of the spline shaft 17. A stepper motor 16 is provided at the middle of the bottom end of the bottom partition 14. The output end of the stepper motor 16 is connected to the middle of the spline sleeve 15.

[0026] During the downward movement of the center seat 2, the rotating seat 13 inside the processing table 1 and the splined shaft 17 at the bottom of the rotating seat 13 will move downward synchronously. After the splined shaft 17 moves downward, it will be precisely embedded inside the splined sleeve 15, realizing the precise engagement of the transmission components. After the mounting base 12 on the rotating seat 13 is fully inserted into the processing table 1, the stepper motor 16 at the bottom of the bottom partition 14 will start running. When the shaft of the stepper motor 16 rotates, it will synchronously drive the splined sleeve 15 on it to rotate. The splined sleeve 15 will then drive the splined shaft 17, the rotating seat 13, the mounting base 12 and the metal ring seat 26 on it to precisely rotate to the corresponding position of the second processing chamber 7 through transmission.

[0027] The composite transfer mechanism also includes a mounting base 12. The top circumferential array of the rotating seat 13 has four mounting bases 12, and the top of the mounting base 12 extends outward through the corresponding position on the top of the processing table 1. The bottom circumferential array of the mounting base 12 has four drive motors 18, and the output end of the drive motor 18 is connected to the middle of the corresponding mounting base 12.

[0028] After the indexing is completed, the hydraulic cylinder 6 on the cross seat 5 is activated again. The rod retracts, causing the center seat 2, the bottom rotating seat 13, and the spline shaft 17 to move upwards simultaneously. This allows the metal ring seat 26, which has been processed by the first processing chamber 7, on the mounting base 12 to smoothly enter the second processing chamber 7 for the next round of composite processing. This cycle continues until the workpiece is fully processed and stabilized in the fourth processing chamber 7. Then, the operator can remove the processed combined metal sealing gasket by opening and closing the sliding cover 3 on the fourth processing chamber 7, thus successfully completing the automated transfer process between the processing stations during the multiple composite processing steps.

[0029] Please see the appendix Figure 3 - Appendix Figure 4 The molding and release mechanism is located in the first processing chamber 7 and is used to re-mold the metal seal after the initial processing and to release residual stress. The molding release mechanism includes a driven roller pressure seat group 9. The inner bottom of the processing chamber 7 is provided with a driven roller pressure seat group 9, and the bottom of the driven roller pressure seat group 9 is rotatably connected to the corresponding position on the top of the processing table 1. A circular top seat 35 is fixedly connected to the middle of the inner top of the first processing chamber 7, and multiple planar molding roller seats 19 are rotatably connected to the bottom of the circular top seat 35 at equal intervals.

[0030] When the molding release mechanism is activated, when the worker installs the machined metal ring seat 26 onto the mounting base 12 inside the first processing chamber 7, the first processing chamber 7 maintains a high temperature condition. Through heat conduction, the metal ring seat 26 on the mounting base 12 is heated synchronously, effectively increasing the initial temperature of the metal ring seat 26 before processing and ensuring the plasticity of subsequent molding processing.

[0031] Subsequently, the drive motor 18 located at the bottom of the first processing chamber 7 on the rotating seat 13 starts. When the shaft of the drive motor 18 rotates, it drives the mounting base 12 inside the first processing chamber 7 and the metal ring seat 26 sleeved on the outer wall to rotate at a uniform speed and synchronously. During the rotation of the metal ring seat 26, the friction of the contact surface synchronously drives the driven roller pressing seat group 9 inside the first processing chamber 7 to rotate in coordination.

[0032] Under the synchronous and uniform rolling action of multiple sets of driven roller pressing seats 9, on the one hand, the metal ring seat 26 after turning can be rounded and shaped before processing, avoiding the problem of fitting deviation when combined with rubber seal 27 in the future. On the other hand, the internal stress remaining after turning of the metal ring seat 26 can be released through multiple rolling forces, eliminating the hidden danger of stress concentration.

[0033] While the metal ring seat 26 rotates in the first processing chamber 7, the planar molding roller seat 19 on the circular top seat 35 in the processing table 1 starts to operate synchronously. The bottom surface of the planar molding roller seat 19 is closely attached to the upper surface of the metal ring seat 26 on the mounting base 12. During the process of the metal ring seat 26 being driven to rotate, its end face is synchronously and evenly rolled by multiple sets of planar molding roller seats 19. This three-dimensional rolling method can not only cooperate with the side rolling of the driven roller seat group 9 to further eliminate the residual stress inside the metal ring seat 26, but also level and repair the metal ring seat 26 whose surface has shifted and deformed after turning, and successfully complete the plastic shaping and rounding processing and stress-assisted release processing of the metal part at the front end of the combined sealing gasket.

[0034] Please see the appendix Figure 5 - Appendix Figure 6 The accessory assembly mechanism is located in the second processing chamber 7 and is used for the automatic assembly of rubber sealing accessories after the metal seals have been processed by the plastic release mechanism. The accessory assembly mechanism includes a hollow cylinder seat 8. The hollow cylinder seat 8 is fixedly connected to the middle of the top of the inner side of the second processing chamber 7. A friction inclined wall material drop seat 20 is provided in the upper middle part of the outer wall of the hollow cylinder seat 8. Multiple slots 24 are equally spaced in the lower middle part of the outer wall of the hollow cylinder seat 8. A lever seat 11 is rotatably connected inside each slot 24. A rubber connecting strip 21 is provided on the top of the inner wall of each lever seat 11, and the other end of the rubber connecting strip 21 is connected to the corresponding position on the inner wall of the hollow cylinder seat 8.

[0035] When the accessory assembly mechanism is started, after the metal ring seat 26 is processed by the molding and release mechanism, it enters the second processing chamber 7 through the precise rotation of the composite transfer mechanism. At this time, the second processing chamber 7 maintains a continuous high temperature condition. The metal ring seat 26 and the rubber seal 27 on the hollow cylinder seat 8 are both in a state of thermal expansion, which greatly improves the plasticity of the material and makes the assembly operation easier. When assembling the rubber seal 27, the lever seat 11 on the hollow cylinder seat 8 is initially in a V-shape. Relying on the structure of the upper part shrinking inward and the lower part expanding outward, it provides stable support and precise positioning for the rubber seal 27 that slides down from the friction inclined wall drop seat 20 on the upper part of the hollow cylinder seat 8.

[0036] The accessory assembly mechanism also includes a circular airbag seat 23. A circular airbag seat 23 is provided in the middle of the inner side of the hollow cylinder seat 8. A plurality of outward protrusions 22 that move outward when inflated are arranged in a circumferential array on the outer wall of the circular airbag seat 23. A connecting seat 25 is provided on the end of the outward protrusion 22 away from the circular airbag seat 23. The side of the connecting seat 25 away from the circular airbag seat 23 is connected to the corresponding position on the inner side of the corresponding lever seat 11. A micro air pump 4 is provided in the middle of the top of the second processing chamber 7. The exhaust end of the micro air pump 4 is connected to the inside of the circular airbag seat 23 through a connecting pipe.

[0037] During formal assembly, the miniature air pump 4 on the second processing chamber 7 is started and operated. The miniature air pump 4 injects gas into the circular airbag seat 23 inside the hollow cylinder seat 8 at a constant speed through the connecting pipe. As the gas volume inside the circular airbag seat 23 continues to increase, the protruding part 22 on it protrudes outward under the compression and push of the internal air pressure. The connecting seat 25 on the protruding part 22 moves outward accordingly, and simultaneously drives the upper part of the lever seat 11 to expand outward, so that the lever seat 11, which was originally in a V-shape, changes to an inverted V-shape.

[0038] After being guided by multiple sets of lever seats 11, the rubber seal 27 smoothly slides to the outside of the metal ring seat 26. At this time, the traction expansion force on the rubber seal 27 disappears, and the rubber seal 27, which is in a state of thermal expansion, is then tightly fitted onto the preset position on the outer wall of the metal ring seat 26. After assembly, the gas in the circular airbag seat 23 is discharged at a uniform speed, restoring to the initial air pressure state. The protrusion 22 is then reset, and at the same time, the lever seat 11 is driven to reset synchronously by the stretched and opened rubber connecting strip 21, restoring the initial structural shape and preparing for subsequent continuous processing, thereby completing the precise assembly of the rubber accessory.

[0039] Please see the appendix Figure 7 - Appendix Figure 9 The terminal processing mechanism, located within the third and fourth processing compartments 7, is used to perform terminal processing on the assembled seals after the accessories have been assembled.

[0040] The terminal processing mechanism includes a metal ring seat 26. The metal ring seat 26 is installed inside the third processing chamber 7. The metal ring seat 26 is fitted onto the corresponding mounting base 12. A rubber seal 27 matching the shape of its inner wall is provided on the middle of the outer side of the metal ring seat 26.

[0041] When the terminal processing mechanism is started, after the metal ring seat 26 is processed by the accessory assembly mechanism, it is transferred into the third processing chamber 7 through the composite transfer mechanism. At this time, the metal ring seat 26 and the rubber seal 27 have completed preliminary assembly. The drive motor 18 at the bottom of the third processing chamber 7 is then started. When the shaft rotates, it drives the driven roller pressing seat group 9 in the third processing chamber 7 to rotate synchronously. At the same time as the driven roller pressing seat group 9 rotates, it drives the central rubber ring seat 10 on it to rotate in coordination.

[0042] The terminal processing mechanism also includes a composite sealing strip 28. The composite sealing strip 28 is provided on both sides of the inner wall of the rubber seal 27. When the composite sealing strip 28 is squeezed, it deforms and fills and seals the residual gap between the rubber seal 27 and the inner wall of the metal ring seat 26. The middle of the upper and lower sides of the composite sealing strip 28 is provided with a dovetail groove 31. The middle of the inner wall of the rubber seal 27 is provided with a concave sealing groove 29, and the inner wall of the concave sealing groove 29 is smooth.

[0043] During the rotation of the central rubber ring seat 10, the rubber seal 27 assembled on the metal ring seat 26 is uniformly rolled and pressed. When the central rubber ring seat 10 rolls the rubber seal 27, the gas in the cavity between the concave sealing groove 29 on the rubber seal 27 and the inner wall of the metal ring seat 26 is gradually squeezed. The compressed gas enters the squeeze exhaust channel 30 along the channel. As the gas in the concave sealing groove 29 is continuously squeezed, the gas continuously flows into the squeeze exhaust channel 30. When the gas pressure in the squeeze exhaust channel 30 reaches the threshold, the gas breaks through the overlapping part 34 on the diaphragm seat 33 and is discharged to the outside. However, due to the influence of the bending part 32 on the diaphragm seat 33, the external gas cannot enter the space between the metal ring seat 26 and the rubber seal 27 through the squeeze exhaust channel 30.

[0044] The terminal processing mechanism also includes a central rubber ring seat 10. Multiple central rubber ring seats 10 are provided inside the third processing chamber 7. The central rubber ring seats 10 are respectively fitted on the middle of the outer wall of the driven roller pressing seat group 9 inside the third processing chamber 7. Multiple extrusion exhaust channels 30 are equidistantly arranged near the edge of the dovetail groove 31. The interior of the extrusion exhaust channel 30 is connected to the corresponding position inside the concave sealing groove 29. Two diaphragm seats 33 with one end in contact are provided in the middle of the inner side of each extrusion exhaust channel 30. A bending part 32 is provided in the middle of the diaphragm seat 33. A overlapping part 34 that is in contact with each other is provided at the end of the diaphragm seat 33 away from the inner wall of the extrusion exhaust channel 30.

[0045] After the air pressure in the extrusion exhaust channel 30 dissipates, the curved part 32 on the diaphragm seat 33 drives the overlapping part 34 to automatically reset and reclose the extrusion exhaust channel 30. During this process, the gas in the concave sealing groove 29 and the inner wall cavity of the metal ring seat 26 is completely emptied, so that a negative pressure state is formed inside the concave sealing groove 29. With the help of the deformed overlapping sealing strip 28, the edge gap of the sealing metal ring seat 26 is filled, allowing the rubber seal 27 to be firmly adhered to the metal ring seat 26. At the same time, with the help of the rubber seal 27 and the corresponding extrusion exhaust channel 30 of the metal ring seat 26, the inner wall edges of the two are seamlessly and tightly fitted.

[0046] At the same time, the temperature inside the third processing chamber 7 is moderately lower than that of the first two stations, so that the metal ring seat 26 and the rubber seal 27 in the assembly roller are in a medium-temperature insulation state, ensuring that the temperature of the metal frame and the rubber parts is uniform and consistent, and avoiding the deformation risk caused by temperature difference.

[0047] After the rolling and temperature control treatment of the third processing chamber 7 is completed, the composite transfer mechanism is started again to transfer the processed part to the inside of the fourth processing chamber 7. The metal ring seat 26 and rubber seal 27 of the fourth processing chamber 7 are affected by the ambient temperature and low temperature environment and shrink synchronously and slowly according to the principle of thermal expansion and contraction. At the same time, the stepper motor 16 at the bottom of the fourth processing chamber 7 is started, driving the mounting base 12 and the processed part on it to rotate at a uniform speed. In conjunction with the driven roller pressing seat group 9 in the fourth processing chamber 7, the rubber seal 27 is rolled evenly at multiple angles in the ambient temperature and low temperature environment to complete the final shrinkage and bonding shaping, and realize the final fine processing of the combined metal sealing gasket.

[0048] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A composite processing equipment for metal sealing gaskets, characterized in that, include, The processing table (1) has four processing chambers (7) arranged in a circular array on the top of the processing table (1). Each processing chamber (7) has a sliding cover (3) that allows workers to load and unload parts and observe the processing status. The four processing chambers (7) are, in order, the first processing chamber (7), the second processing chamber (7), the third processing chamber (7), and the fourth processing chamber (7); Among them, the first processing chamber (7) and the second processing chamber (7) are high temperature processing chambers (7), the third processing chamber (7) is a medium temperature processing chamber (7), and the fourth processing chamber (7) is a normal temperature processing chamber (7). The composite transfer mechanism is set inside the machining table (1) and is used for the transfer of the sealed workpiece between subsequent composite machining stations after turning. The molding release mechanism is located in the first processing chamber (7) and is used for remolding the metal seal after preliminary processing and for releasing residual stress. The accessory assembly mechanism is located in the second processing chamber (7) and is used for the automatic assembly of the rubber sealing accessories after the metal seals have been processed by the plastic release mechanism. The terminal processing mechanism, which is located within the third processing compartment (7) and the fourth processing compartment (7), is used to perform terminal processing on the assembled seal after the accessories are assembled.

2. The composite processing equipment for metal sealing gaskets according to claim 1, characterized in that, The composite transfer mechanism includes a cross seat (5), the top center of the processing table (1) is fixedly connected to the cross seat (5), the center of the cross seat (5) is slidably connected to a center seat (2) that can move up and down, a hydraulic cylinder (6) is provided at the top center of the inner side of the cross seat (5), and the top of the rod of the hydraulic cylinder (6) is connected to the center of the center seat (2).

3. The composite processing equipment for metal sealing gaskets according to claim 2, characterized in that, The composite transfer mechanism also includes a bottom partition (14). The bottom partition (14) is fixedly connected to the middle of the inner side of the processing table (1). A spline sleeve (15) is rotatably connected to the middle of the top of the bottom partition (14). A matching spline shaft (17) is meshed inside the spline sleeve (15). A rotating seat (13) is rotatably connected to the top of the inner side of the processing table (1). The middle of the top of the rotating seat (13) is connected to the bottom of the center seat (2). The middle of the bottom end of the rotating seat (13) is connected to the top of the spline shaft (17). A stepper motor (16) is provided at the middle of the bottom end of the bottom partition (14). The output end of the stepper motor (16) is connected to the middle of the spline sleeve (15).

4. The composite processing equipment for metal sealing gaskets according to claim 3, characterized in that, The composite transfer mechanism also includes a mounting base (12). The top circumferential array of the rotating seat (13) has four mounting bases (12), and the top of the mounting base (12) extends outward through the corresponding position of the top of the processing table (1). The bottom circumferential array of the mounting base (12) has four drive motors (18), and the output end of the drive motor (18) is connected to the middle of the corresponding mounting base (12).

5. The composite processing equipment for metal sealing gaskets according to claim 1, characterized in that, The molding release mechanism includes a driven roller pressing seat group (9). The bottom of the inner side of the processing chamber (7) is provided with a driven roller pressing seat group (9), and the bottom of the driven roller pressing seat group (9) is rotatably connected to the corresponding position on the top of the processing table (1). A circular top seat (35) is fixedly connected to the middle of the top inner side of the first processing chamber (7), and a plurality of planar molding roller seats (19) are rotatably connected to the bottom of the circular top seat (35) at equal intervals.

6. The composite processing equipment for metal sealing gaskets according to claim 1, characterized in that, The accessory assembly mechanism includes a hollow cylinder seat (8). The hollow cylinder seat (8) is fixedly connected to the middle of the inner top of the second processing chamber (7). A friction inclined wall material drop seat (20) is provided in the upper middle part of the outer wall of the hollow cylinder seat (8). Multiple slots (24) are equally spaced in the lower middle part of the outer wall of the hollow cylinder seat (8). A lever seat (11) is rotatably connected inside each slot (24). A rubber connecting strip (21) is provided on the top of the inner wall of each lever seat (11). The other end of the rubber connecting strip (21) is connected to the corresponding position of the inner wall of the hollow cylinder seat (8).

7. The composite processing equipment for metal sealing gaskets according to claim 6, characterized in that, The accessory assembly mechanism also includes a circular airbag seat (23). A circular airbag seat (23) is provided in the middle of the inner side of the hollow cylinder seat (8). A plurality of outward protrusions (22) that move outward when inflated are arranged in a circular array on the outer wall of the circular airbag seat (23). A connecting seat (25) is provided on the end of the outward protrusion (22) away from the circular airbag seat (23). The side of the connecting seat (25) away from the circular airbag seat (23) is connected to the corresponding position on the inner side of the corresponding lever seat (11). A micro air pump (4) is provided in the middle of the top of the second processing chamber (7). The exhaust end of the micro air pump (4) is connected to the inside of the circular airbag seat (23) through a connecting pipe.

8. The composite processing equipment for metal sealing gaskets according to claim 1, characterized in that, The terminal processing mechanism includes a metal ring seat (26). The third processing chamber (7) is provided with a metal ring seat (26). The metal ring seat (26) is sleeved on the corresponding mounting base (12). The outer middle part of the metal ring seat (26) is provided with a rubber seal (27) that matches the shape of its inner wall.

9. The composite processing equipment for metal sealing gaskets according to claim 8, characterized in that, The terminal processing mechanism also includes a superimposed sealing strip (28). Superimposed sealing strips (28) are provided on both sides of the inner wall of the rubber seal (27). When the superimposed sealing strip (28) is squeezed, it deforms and fills and seals the residual gap between the rubber seal (27) and the inner wall of the metal ring seat (26). The superimposed sealing strip (28) has a dovetail groove (31) in the middle of the upper and lower sides. The rubber seal (27) has a concave sealing groove (29) in the middle of the inner wall. The inner wall of the concave sealing groove (29) is smooth.

10. The composite processing equipment for metal sealing gaskets according to claim 9, characterized in that, The terminal processing mechanism also includes a central rubber ring seat (10). The third processing chamber (7) is provided with a plurality of central rubber ring seats (10). The central rubber ring seats (10) are respectively sleeved on the middle of the outer wall of the driven roller press seat group (9) in the third processing chamber (7). A plurality of extrusion exhaust channels (30) are provided at equal intervals near the edge of the dovetail groove (31). The interior of the extrusion exhaust channel (30) is connected to the interior of the concave sealing groove (29) at the corresponding position. The inner middle of the extrusion exhaust channel (30) is provided with two diaphragm seats (33) with one end in contact. The middle of the diaphragm seat (33) is provided with a bent part (32). The end of the diaphragm seat (33) away from the inner wall of the extrusion exhaust channel (30) is provided with a overlapping part (34) that is in contact with each other.

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