A sealing ring preparation device and a sealing ring preparation process

Abstract

The application provides a sealing ring preparation device and a sealing ring preparation process, which comprise a machine body, a milling disc for driving a sealing ring blank to rotate synchronously, wherein the milling disc is horizontally arranged on the machine body and rotationally connected with the machine body around a vertical axis of the milling disc; a plurality of annular clamping grooves for adapting to sealing ring blanks of different specifications are coaxially arranged on the upper surface of the milling disc, and a plurality of air suction openings are circumferentially and spaced apart on the groove bottom of each annular clamping groove; and a negative pressure assembly is arranged in the machine body and communicates with all the air suction openings at the air suction end of the negative pressure assembly, so as to coaxially adsorb and fix the sealing ring blank in the annular clamping groove through global uniform negative pressure and avoid clamping deformation of the blank. According to the technical scheme, the clamping mode of local pressure exertion by a traditional rigid clamp is abandoned, and the problem that the elastic sealing ring blank with large specifications, high wear resistance and strong pressure resistance is deformed due to rigid clamping is avoided from the root.

Description

Technical Field

[0001] This invention generally relates to the field of sealing ring preparation, and specifically to a sealing ring preparation device and sealing ring preparation process. Background Technology

[0002] As an indispensable sealing element in mechanical equipment, sealing rings are widely used in high-end manufacturing fields such as heavy equipment, wind power, shipbuilding and marine engineering, and large presses. Their performance directly determines the sealing reliability, operational stability, and service life of the equipment. With the development of industrial equipment towards larger size, higher precision, and higher loads, the market has placed more stringent demands on the performance of sealing rings. In particular, the demand for ultra-large specifications, such as special sealing rings with diameters exceeding 1 meter or even several meters, high wear resistance, and strong pressure resistance is increasing. These sealing rings need to be adaptable to high pressure, heavy loads, and extreme working conditions, and the requirements for processing precision and product consistency far exceed those for ordinary specification sealing rings.

[0003] Currently, the main machining method for sealing rings is turning. Even though moldless turning technology can achieve the machining of some large-sized sealing rings, the turning method has insurmountable limitations for the ultra-large, high-wear-resistant, and high-pressure-resistant special sealing rings described in this article, and can no longer meet their manufacturing requirements.

[0004] To overcome the limitations of turning, the industry has gradually begun to explore rotary milling for the fabrication of these special sealing rings. Rotary milling, through the high-speed rotation of the milling cutter and the synchronous rotation of the workpiece, enables uniform machining of ultra-large workpieces. Furthermore, the small contact area between the cutter and the workpiece during milling and the uniform distribution of cutting force effectively reduce machining stress, making it suitable for machining high-hardness and high-strength materials. It also better ensures the machining accuracy and surface quality of ultra-large sealing rings and facilitates the precise machining of complex cross-sectional structures. Therefore, rotary milling has become the preferred machining method for ultra-large, high-wear-resistant, and high-pressure-resistant sealing rings. Existing rotary milling devices for sealing ring machining typically include a machine body and a milling disc mounted on the machine body. The milling disc can rotate relative to the machine body to achieve synchronous rotation of the workpiece. However, these milling discs are mostly of ordinary planar structure and lack dedicated workpiece positioning and fixing structures; the workpiece fixing still relies on external clamping fixtures.

[0005] However, existing clamping technologies face significant technical bottlenecks when machining small parts of sealing rings using rotary milling. Sealing ring blanks are mostly made of elastic materials, and extra-large sealing ring blanks are large and heavy. Traditional clamping methods often employ rigid clamping structures, applying localized clamping force to fix the sealing ring blank. Even those solutions that attempt to combine clamping structures with milling discs are mostly simple rigid clamping designs, not optimized for the characteristics of elastic blanks. Because the clamping force is difficult to control precisely and the force points are concentrated, it is easy for the sealing ring blank to undergo local deformation or overall deformation. Especially during the processing of small parts, the slight deformation of the blank will be directly transmitted to the processing area, resulting in dimensional deviations and excessive surface roughness, which seriously affects the processing accuracy of the sealing ring. At the same time, traditional fixtures have poor adaptability and cannot be specifically adapted to the size characteristics and elastic material properties of ultra-large sealing rings. Slippage and positioning misalignment are prone to occur during clamping, which further aggravates the processing errors. As a result, the manufactured sealing rings cannot meet the requirements of high wear resistance and strong pressure resistance, and are difficult to adapt to the sealing needs of high-end equipment. Summary of the Invention

[0006] In view of the problems existing in the prior art, the present invention provides a sealing ring preparation device, comprising: a machine body, a milling disc for driving the sealing ring blank to rotate synchronously, the milling disc being horizontally disposed on the machine body and rotatably connected to the machine body around its own vertical axis; the upper surface of the milling disc being coaxially provided with a plurality of annular slots for adapting sealing ring blanks of different specifications, and the bottom of each annular slot being provided with a plurality of suction ports spaced apart circumferentially; a negative pressure component, the negative pressure component being disposed in the machine body, and the suction end of the negative pressure component being connected to all suction ports, for coaxially adsorbing and fixing the sealing ring blank in the annular slot through uniform negative pressure throughout the entire area, thereby avoiding deformation of the blank during clamping.

[0007] With the aforementioned technical features, a milling disc, horizontally mounted on the machine body and capable of rotating around its own vertical axis, can stably drive the sealing ring blank to rotate synchronously, providing stable rotational support for subsequent milling operations. Multiple coaxial annular grooves on the upper surface of the milling disc can accommodate sealing ring blanks of different specifications for coaxial positioning, significantly improving the equipment's versatility and meeting the manufacturing needs of multi-specification, ultra-large-sized sealing rings. This is complemented by air intakes spaced circumferentially along the bottom of the annular grooves, and a negative pressure system connected to all air intakes. This device can generate a uniform negative pressure adsorption force over the entire area, stably adsorbing and fixing the sealing ring blank onto the milling disc surface. It abandons the clamping method of local pressure application by traditional rigid clamps, fundamentally avoiding the deformation problem of ultra-large, high wear-resistant, and high pressure-resistant elastic sealing ring blanks due to rigid clamping, effectively ensuring the machining accuracy of the sealing ring. At the same time, the circumferentially spaced air intakes allow the negative pressure adsorption force to evenly cover the blank contact area, making the blank and the milling disc fit tightly without relative slippage, greatly improving the stability and reliability of the machining process.

[0008] In some embodiments, the milling disc includes a disc body, with the annular groove and air inlet formed on the disc body. The disc body has a cavity that communicates with each of the air inlets. A synchronous shaft, coaxially arranged with the disc body, is fixedly connected at one end to the bottom surface of the disc body. The synchronous shaft is a tubular structure and communicates with the cavity of the disc body. Thus, the disc body, as the main load-bearing structure of the milling disc, integrates the annular groove and air inlet into a compact and rationally laid structure, providing a stable load-bearing and positioning foundation for sealing ring blanks of different specifications. The cavity inside the disc body can serve as a negative pressure confluence chamber, achieving stable communication with all air inlets, ensuring that negative pressure can be uniformly and smoothly delivered to each air inlet, and ensuring the balance of adsorption force across the entire area. The synchronous shaft and the disc are coaxially fixedly connected, which can ensure the concentricity of the disc when rotating, effectively avoid wobble and shaking during the rotation of the milling disc, and improve the stability of the billet rotation processing. The synchronous shaft adopts a tubular structure design, which can not only drive the disc to rotate synchronously as a transmission component, but also connect with the cavity of the disc as a negative pressure channel, realizing the integration of the transmission structure and the negative pressure channel, simplifying the overall structure of the equipment, reducing pipeline connection nodes, ensuring the airtightness of the negative pressure channel, avoiding negative pressure leakage, and thus ensuring the reliability of billet adsorption and fixation.

[0009] In some embodiments, the negative pressure assembly includes an adapter, the air inlet of which is rotatably and sealed to the port of the synchronous shaft, and a vacuum pump, the air inlet of which is connected to the air outlet of the adapter for providing negative pressure to the air inlet of the disc. Therefore, the negative pressure assembly, through the cooperation of the adapter and the vacuum pump, can stably provide reliable negative pressure adsorption power for the intake port of the disc. The air inlet of the adapter and the synchronous shaft port adopt a sealed rotating connection, which can maintain the airtightness of the negative pressure path even when the synchronous shaft rotates continuously with the milling disc, effectively avoiding the attenuation of adsorption force caused by negative pressure leakage, and at the same time, it will not interfere with the normal rotation of the milling disc, realizing the coordinated adaptation of dynamic sealing and negative pressure transmission. The air inlet of the vacuum pump is connected to the air outlet of the adapter, and a complete sealed negative pressure transmission path can be formed through the adapter, the tubular synchronous shaft and the disc cavity, ensuring that the negative pressure is stably and evenly delivered to each intake port, providing continuous and reliable negative pressure support for the adsorption and fixation of the sealing ring blank, and ensuring that the blank remains stable during the milling process.

[0010] In some embodiments, the machine body is provided with a drive assembly for driving the milling disc to rotate. The drive assembly includes a drive motor, a drive pulley coaxially fixed to the output shaft of the drive motor, a driven pulley coaxially fixed to the periphery of the synchronous shaft, and a drive belt sleeved on both the drive pulley and the driven pulley. Therefore, the drive assembly inside the machine adopts a belt drive structure, which can stably and reliably drive the milling disc to rotate at a uniform speed, providing stable rotational power for the milling of the sealing ring blank. The active motor serves as the power source, working in conjunction with the active pulley coaxially fixed to its output shaft, the driven pulley coaxially fixed to the circumference of the synchronous shaft, and the drive belt sleeved between the active and driven pulleys to form a closed-loop transmission path. The transmission process is smooth and stable with minimal impact and vibration, effectively preventing transmission jitter from affecting the machining accuracy of the blank. This belt drive structure can precisely ensure the coaxial rotation accuracy of the synchronous shaft and the milling disc, preventing the milling disc from wobbling or shaking during rotation, ensuring that the sealing ring blank always maintains a stable rotational state. At the same time, the overall structure is compact and has high transmission efficiency, making it suitable for the long-term continuous processing requirements of ultra-large sealing ring blanks.

[0011] In some embodiments, the machine body is provided with a milling device, which includes a power source for providing milling power to a milling cutter; a milling cutter, which is drivenly connected to the output end of the power source, with the cutting end of the milling cutter facing the sealing ring blank on the milling disc, for milling small parts and contours of the blank; a longitudinal displacement mechanism, which is provided on the machine body, with the power source connected to the longitudinal displacement mechanism, for driving the power source and the milling cutter to move up and down in the vertical direction, adjusting the cutting depth between the milling cutter and the sealing ring blank; and a transverse displacement mechanism, which is provided on the machine body, with the longitudinal displacement mechanism connected to the transverse displacement mechanism, for driving the longitudinal displacement mechanism, the power source, and the milling cutter to move in the horizontal direction, adjusting the transverse machining position between the milling cutter and the sealing ring blank, and adapting to the milling requirements of sealing ring blanks of different specifications.

[0012] Therefore, the milling device on the machine integrates milling power output, cutting processing, and two-dimensional position adjustment functions, which can efficiently adapt to the precision milling needs of ultra-large sealing ring blanks. The power source can provide continuous and stable milling power to the milling cutter, ensuring that the milling cutter can smoothly and accurately mill the small parts and contours of the sealing ring blank, thus guaranteeing the forming quality and machining accuracy of the sealing ring. The longitudinal displacement mechanism can drive the power source and the milling cutter to move flexibly up and down in the vertical direction, precisely adjusting the cutting depth between the milling cutter and the blank to meet the requirements of different depth milling processes. The transverse displacement mechanism can further drive the longitudinal displacement mechanism, the power source, and the milling cutter to move in the horizontal direction, flexibly adjusting the radial machining position of the milling cutter to adapt to the milling processing of sealing ring blanks of different diameters and specifications. The longitudinal displacement mechanism and the transverse displacement mechanism work together to achieve precise control of the milling cutter's machining position. Combined with the synchronous rotation of the milling disc, continuous and stable milling operations can be completed, greatly improving the processing versatility and operating efficiency of the equipment.

[0013] In some embodiments, multiple sets of air control components are provided within the cavity of the disc body, each set of air control components being correspondingly provided with an air intake of one of the annular slots; the air control component includes: an annular baffle, which is fitted to the lower part of the air intake and can rotate relative to the disc body around the central axis of the disc body, and the annular baffle has a communication port for communicating with the air intake; and a driving unit, which is fixedly installed within the cavity of the disc body, and the output end of the driving unit is kinetically connected to the annular baffle for driving the annular baffle to rotate, so as to realize the alignment and communication or misalignment and blockage of the communication port and the air intake.

[0014] Therefore, the multiple sets of air control components installed inside the disc cavity can correspond one-to-one with the air inlets of each annular slot, achieving independent air control in different areas, effectively improving the negative pressure utilization efficiency and the flexibility of adsorption regulation; the annular baffle is fitted below the air inlet, ensuring airtightness when sealing the air inlet to prevent negative pressure leakage, and can also rotate stably around the central axis of the disc under the drive of the drive unit, and with the connecting port opened on it, accurately achieve the alignment and conduction or misalignment and sealing of the air inlet and the connecting port; the drive unit is fixedly installed on the disc body. Inside the cavity, a stable and reliable driving force can be provided for the annular baffle, ensuring smooth and precise switching between the conduction and blocking states. Through this air control component, when processing sealing ring blanks of different specifications, only the air intake of the corresponding annular slot that carries the blank can be opened, while the air intake of the idle slot can be completely blocked. This allows the negative pressure to be concentrated on the blank bonding area, greatly enhancing the stability and uniformity of adsorption and fixation, and fundamentally avoiding negative pressure dispersion loss. This further ensures the positioning accuracy and processing stability of ultra-large elastic blanks in milling.

[0015] In some embodiments, the lower surface of the annular baffle is coaxially fixed with annular teeth, and the driving part includes: a driving motor fixed to the upper inner wall of the disk cavity, and a drive gear coaxially fixed to the output shaft of the driving motor and meshing with the annular teeth. Therefore, the annular teeth fixed coaxially on the lower surface of the annular baffle, in conjunction with the drive motor and the active gear of the drive unit, form a gear meshing drive structure with precise transmission and stable operation, providing reliable power support for the rotation adjustment of the annular baffle. The drive motor is fixedly installed on the upper inner wall of the disc cavity, with a stable installation and compact layout, without occupying extra space inside the disc, ensuring the unobstructed negative pressure passage in the cavity. The active gear is coaxially fixed to the output shaft of the drive motor and stably meshes with the annular teeth. The gear transmission has high precision and good transmission efficiency, which can accurately drive the annular baffle to rotate smoothly, effectively avoiding slippage and jamming during transmission. This ensures that the annular baffle accurately and reliably switches between opening and blocking the air intake, making the control of the air control component more sensitive and accurate in positioning, and continuously ensuring the stability and controllability of negative pressure adsorption.

[0016] In some embodiments, multiple driving units are arranged circumferentially along the annular baffle, and these driving units are evenly distributed. This arrangement of multiple driving units circumferentially and evenly distributed ensures uniform and balanced force distribution on the annular baffle, effectively avoiding problems such as uneven load, jamming, and swaying caused by unilateral driving. This makes the rotation of the annular baffle around the central axis of the disc more stable and smooth. The coordinated action of multiple evenly distributed driving units significantly improves the rotation adjustment accuracy and response speed of the annular baffle, ensuring precise and reliable switching between the open and closed states of the air intake. Simultaneously, it disperses the transmission load, reduces the workload of individual driving units, reduces component wear, and improves the overall stability and durability of the air control assembly, providing continuous and reliable support for the precise control of negative pressure adsorption.

[0017] A sealing ring manufacturing process includes the following steps: The sealing ring blank is placed coaxially in the corresponding annular groove on the milling disc; Activate the negative pressure component to apply uniform negative pressure to the blank in the annular slot through the air intake, so that the blank is flat and adsorbed and fixed on the surface of the milling disc, eliminating rigid clamping deformation. The milling disc is controlled to rotate at a constant speed around its own vertical axis, causing the sealing ring blank to rotate synchronously; The milling cutter is started by a power source to drive the milling cutter to rotate. The position of the milling cutter is adjusted by the longitudinal displacement mechanism and the transverse displacement mechanism to mill the rotating sealing ring blank and obtain the target sealing ring.

[0018] Through the above-mentioned technical features, the sealing ring manufacturing process achieves efficient and high-precision forming and processing of the sealing ring blank through an integrated process of positioning, negative pressure fixing, synchronous rotation, and dual-axis linkage milling. First, the sealing ring blank is coaxially placed in the corresponding annular groove of the milling disc, which can quickly complete the centering and preliminary positioning of the blank and ensure the coaxiality of the blank and the milling disc. Then, the negative pressure component is activated, and uniform negative pressure is applied to the blank through the suction port, so that the blank is flat and fixed to the surface of the milling disc. This eliminates the deformation of the blank caused by clamping force, thus ensuring the original shape and machining accuracy of the blank. Then, the milling disc is controlled to rotate at a constant speed around the vertical axis, which drives the blank to rotate stably and synchronously, providing a stable working condition for continuous milling. Finally, the milling cutter power source is activated and coordinated with the longitudinal displacement mechanism and the transverse displacement mechanism to precisely control the cutting depth and radial machining position of the milling cutter. The blank in the rotating state is milled for contour and fine parts. The entire process is stable and has high dimensional accuracy, which can reliably produce the target sealing ring with regular shape and reliable quality.

[0019] In some embodiments, after placing the sealing ring blank in the corresponding annular slot and before activating the negative pressure assembly, the annular baffle is rotated by the corresponding drive unit to completely block the air intake corresponding to the annular slot without blank, while keeping the air intake corresponding to the annular slot with blank open. This concentrates the negative pressure on the blank contact area, improving the stability of the adsorption and fixation. Therefore, by rotating the annular baffle after placing the sealing ring blank in the corresponding annular slot and before activating the negative pressure assembly, the air intake corresponding to the annular slot without blank can be completely blocked, while the air intake of the annular slot carrying the blank remains open. This avoids the negative pressure dispersing and being lost to idle areas, allowing the negative pressure resources to concentrate on the contact area between the blank and the milling disc, significantly improving the concentration and effectiveness of the negative pressure adsorption. This makes the adsorption and fixation of the sealing ring blank more stable and reliable, effectively preventing the blank from loosening or shifting during milling, and further ensuring the machining accuracy and forming quality of the sealing ring.

[0020] It should be understood that the description in the Summary of the Invention is not intended to limit the key or essential features of the embodiments of this disclosure, nor is it intended to restrict the scope of this disclosure. Other features of this disclosure will become readily apparent from the following description. Attached Figure Description

[0021] Figure 1 A schematic diagram of the overall structure of a sealing ring manufacturing device according to an embodiment of the present invention is shown.

[0022] Figure 2 A schematic diagram of a milling disk structure in a sealing ring manufacturing apparatus according to an embodiment of the present invention is shown.

[0023] Figure 3 A schematic diagram of the negative pressure component in a sealing ring manufacturing device according to an embodiment of the present invention is shown.

[0024] Figure 4 A schematic diagram of the drive assembly in a sealing ring manufacturing device according to an embodiment of the present invention is shown.

[0025] Figure 5 A schematic diagram of one set of air control components in a sealing ring manufacturing device according to an embodiment of the present invention is shown.

[0026] Figure 6 A flowchart illustrating a sealing ring manufacturing process according to an embodiment of the present invention is shown.

[0027] Symbol Explanation 1. Body; 2. Milling disc; 21. Disc body; 211. Annular groove; 212. Air inlet; 22. Synchronous shaft; 3. Negative pressure assembly; 31. Adapter; 32. Vacuum pump; 33. Connecting pipe; 4. Drive assembly; 41. Active motor; 42. Active pulley; 43. Driven pulley; 44. Drive belt; 5. Milling device; 51. Power source; 52. Milling cutter; 53. Longitudinal displacement mechanism; 54. Lateral displacement mechanism; 6. Air control assembly; 61. Annular baffle; 611. Connecting port; 62. Guide rail; 63. Annular gear; 64. Drive unit; 641. Drive motor; 642. Active gear. Detailed Implementation

[0028] The preferred embodiments (or implementation methods) of the present invention will now be described in detail with reference to the accompanying drawings.

[0029] The following is for reference. Figures 1-6 This invention describes a sealing ring preparation device and sealing ring preparation process.

[0030] Figure 1 A schematic diagram of the overall structure of a sealing ring manufacturing apparatus according to an embodiment of the present invention is shown. (Reference) Figure 1 As shown, the sealing ring manufacturing equipment disclosed in this embodiment includes a machine body 1 and a milling disc 2. The milling disc 2 is used to drive the sealing ring blank to rotate synchronously. It is horizontally set on the machine body 1 and can rotate relative to the machine body 1 around its own vertical axis. Multiple annular grooves 211 are coaxially formed on the upper surface of the milling disc 2 to accommodate sealing ring blanks of different specifications. Multiple air intakes 212 are spaced circumferentially at the bottom of each annular groove 211. The equipment is also equipped with a negative pressure component 3 (such as...). Figure 3 As shown), the negative pressure component 3 is installed inside the body 1, and the suction end is connected to all the air inlets 212. It uses uniform negative pressure throughout the entire area to coaxially adsorb and fix the sealing ring blank in the annular groove 211, thus preventing the blank from being clamped and deformed.

[0031] The main body 1 serves as the overall support and assembly foundation for the equipment. Specifically, the upper surface of the main body 1 is provided with a slot that cooperates with the milling disc 2, allowing the milling disc 2 to be positioned within the slot, thus providing both support and allowing for its own rotation. The milling disc 2 is the core working component that carries the sealing ring blank and provides rotational power. The annular slot 211 is used to achieve coaxial positioning of sealing ring blanks of different specifications. The air intake 212 is the direct port for negative pressure adsorption. The negative pressure component 3 provides negative pressure adsorption power for the entire equipment. The milling disc 2 is mounted on the main body 1 via a rotatable connection, and the negative pressure component 3 is fixedly installed inside the main body 1. Its air intake end and all the air intakes 212 on the milling disc 2 form a sealed and continuous negative pressure transmission channel. All components are assembled and combined based on the main body 1 to achieve functional synergy.

[0032] This sealing ring manufacturing equipment, through its coaxially arranged multi-specification annular grooves 211, can adapt to the processing requirements of sealing ring blanks of various sizes, greatly improving the equipment's versatility. It employs a uniform negative pressure adsorption fixing method, abandoning the traditional rigid clamping method, fundamentally eliminating the deformation problem of the sealing ring blank caused by localized clamping force, and ensuring the initial positioning accuracy of the blank. The milling disc 2 can stably drive the blank to rotate synchronously, and together with the uniform adsorption and fixing of the negative pressure component 3, it provides stable and reliable working conditions for the subsequent milling processing of the sealing ring blank, effectively improving the processing accuracy and production stability of the sealing ring.

[0033] The machine body 1 is equipped with a milling device 5, which includes a power source 51, a milling cutter 52, a longitudinal displacement mechanism 53, and a transverse displacement mechanism 54. The power source 51 provides the power required for milling the milling cutter 52. The milling cutter 52 is connected to the output end of the power source 51. The cutting end is set towards the sealing ring blank on the milling disc 2 and is used for milling small parts and contours of the blank. The longitudinal displacement mechanism 53 is set on the machine body 1 and connected to the power source 51. It can drive the power source 51 and the milling cutter 52 to move in the vertical direction and adjust the cutting depth between the milling cutter 52 and the blank. The transverse displacement mechanism 54 is also set on the machine body 1 and connected to the longitudinal displacement mechanism 53. It can drive the longitudinal displacement mechanism 53, the power source 51, and the milling cutter 52 to move in the horizontal direction and adjust the transverse relative position between the milling cutter 52 and the blank to adapt to the milling requirements of sealing ring blanks of different specifications.

[0034] In the milling device 5 described above, the power source 51 is the core component that provides milling power to the milling cutter 52. Its output end is directly connected to the milling cutter 52, providing continuous and stable power support for the cutting operation of the milling cutter 52. The milling cutter 52 is the execution component that directly realizes the blank processing, and performs precise milling of the small parts and contours of the sealing ring blank through high-speed rotation. The core function of the longitudinal displacement mechanism 53 is to adjust the vertical height of the milling cutter 52, thereby controlling the cutting depth and ensuring milling accuracy. The transverse displacement mechanism 54 is used to adjust the horizontal position of the milling cutter 52, and works with the longitudinal displacement mechanism 53 to realize the flexible spatial adjustment of the milling cutter 52. All components cooperate with each other and are closely connected. The power source 51 provides power, the longitudinal and transverse displacement mechanisms 54 coordinate to adjust the position of the milling cutter 52, and the milling cutter 52 is responsible for the specific cutting operation. Together, they form a complete milling processing system to ensure the orderly conduct of milling operations.

[0035] Figure 2 A schematic diagram of the milling disk 2 structure in a sealing ring manufacturing apparatus according to an embodiment of the present invention is shown. (See reference) Figure 2As shown, the milling disc 2 includes a disc body 21 and a synchronous shaft 22. An annular groove 211 and an air inlet 212 are formed on the disc body 21. The disc body 21 has a cavity inside, and the cavity is connected to each air inlet 212. The synchronous shaft 22 is coaxially arranged with the disc body 21, and one end is fixedly connected to the bottom surface of the disc body 21. The synchronous shaft 22 is a tubular structure and is connected to the cavity of the disc body 21.

[0036] The disc body 21 is the core bearing base of the milling disc 2. It is mainly used to arrange the annular slot 211, the air inlet 212 and construct the internal negative pressure confluence space. The synchronous shaft 22 is a tubular shaft that has the functions of power transmission and negative pressure conduction. The cavity is a sealed chamber inside the disc body 21 used for centralized delivery of negative pressure. The disc body 21 and the synchronous shaft 22 are coaxially assembled and are fixedly connected to form a whole. The tubular inner cavity of the synchronous shaft 22 is connected to the cavity of the disc body 21. All the air inlets 212 on the disc body 21 are stably connected to the cavity, together forming a complete negative pressure transmission and rotation transmission structure.

[0037] This structural layout integrates load-bearing positioning, negative pressure convergence, and rotary transmission. The cavity of the disc 21 can evenly distribute negative pressure to each air inlet 212, ensuring the uniformity of the adsorption force across the entire area. The synchronous shaft 22 is coaxially fixedly connected to the disc 21, which can effectively ensure the concentricity of the milling disc 2 during rotation and avoid rotational wobble. At the same time, the tubular synchronous shaft 22 not only realizes power transmission but also serves as a negative pressure channel, simplifying the overall structure of the equipment, improving the airtightness of the negative pressure passage, and providing a reliable guarantee for the stable adsorption and precise rotary processing of the sealing ring blank.

[0038] Figure 3 A schematic diagram of the negative pressure component 3 in a sealing ring manufacturing apparatus according to an embodiment of the present invention is shown. (Refer to...) Figure 3 As shown, the negative pressure assembly 3 includes an adapter 31 and a vacuum pump 32. The air inlet of the adapter 31 is rotatably connected to the port of the synchronous shaft 22. The air inlet of the vacuum pump 32 is connected to the air outlet of the adapter 31, which is used to provide negative pressure to the air inlet 212 of the disc 21.

[0039] In some embodiments, the adapter 31 and the vacuum pump 32 can be interconnected by a connecting pipe 33, so as to make reasonable settings for the vacuum pump 32 according to the actual situation.

[0040] The adapter 31 is a key component that connects the synchronous shaft 22 and the vacuum pump 32 to achieve negative pressure conduction and dynamic sealing. The vacuum pump 32 is the core component that provides stable negative pressure power for the entire negative pressure adsorption system. The air inlet of the adapter 31 and the port of the synchronous shaft 22 are connected by a sealed rotation, which can ensure the airtightness of the negative pressure passage and prevent negative pressure leakage, and will not interfere with the normal rotation of the synchronous shaft 22 with the milling disc 2. The air inlet of the vacuum pump 32 is fixedly connected to the air outlet of the adapter 31. Through the adapter 31, the tubular synchronous shaft 22 and the cavity of the disc 21, a complete and sealed negative pressure transmission path is formed, so that the negative pressure generated by the vacuum pump 32 can be smoothly transmitted to all the air inlets 212 of the disc 21.

[0041] The structural design of the negative pressure component 3 achieves coordinated adaptation between negative pressure power supply and dynamic sealing. The sealed rotational connection of the adapter 31 effectively solves the problem of negative pressure leakage under the rotation of the synchronous shaft 22, ensuring the stability and continuity of negative pressure transmission. The stable negative pressure provided by the vacuum pump 32 is accurately delivered to each air inlet 212 through the adapter 31 and the synchronous shaft 22, providing reliable power support for the adsorption and fixation of the sealing ring blank, avoiding the loosening and displacement of the blank due to insufficient negative pressure or leakage, while not affecting the normal rotation of the milling disc 2, ensuring that the adsorption and fixation and subsequent milling are carried out stably and coordinated, further improving the reliability of equipment processing and the processing accuracy of the sealing ring.

[0042] Figure 4 A schematic diagram of the drive assembly 4 in a sealing ring manufacturing apparatus according to an embodiment of the present invention is shown. (See reference...) Figure 4 As shown, in some embodiments, a drive assembly 4 for driving the milling disc 2 to rotate is provided inside the machine body 1. The drive assembly 4 includes a drive motor 41, a drive pulley 42, a driven pulley 43, and a drive belt 44. The drive pulley 42 is coaxially fixed on the output shaft of the drive motor 41, and the driven pulley 43 is coaxially fixed on the periphery of the synchronous shaft 22. The drive belt 44 is simultaneously sleeved on the drive pulley 42 and the driven pulley 43. Through the transmission of the drive belt 44, the synchronous shaft 22 and the milling disc 2 can be driven to rotate synchronously, thereby realizing the synchronous rotation processing of the sealing ring blank on the milling disc 2.

[0043] The active motor 41 is the power source of the drive assembly 4, providing stable power to the entire drive system. The active pulley 42 is fixedly connected to the output shaft of the active motor 41 and rotates synchronously with the motor output shaft. The driven pulley 43 is fixedly connected to the synchronous shaft 22, with one end of the synchronous shaft 22 fixed to the milling disc 2 and the other end using a transition structure to achieve sealed transmission. The drive belt 44 connects the active pulley 42 and the driven pulley 43, transmitting the power of the active motor 41 to the driven pulley 43, thereby driving the synchronous shaft 22 and the milling disc 2 to rotate synchronously, forming a complete power transmission link. All components work together to ensure stable power transmission, and all connections are reliably sealed to prevent loosening or power loss during power transmission. This also ensures the stability and synchronicity of the milling disc 2's rotation, adapting to the overall operation of the equipment. The core function of this drive assembly 4 is to provide stable and continuous power to the milling disc 2, ensuring its smooth and uniform rotation, and providing stable operating conditions for subsequent milling operations.

[0044] Figure 5 A schematic diagram of one set of air control components 6 in a sealing ring manufacturing apparatus according to an embodiment of the present invention is shown. (See reference) Figure 5 As shown, multiple sets of air control components 6 are arranged inside the cavity of the disc body 21. Each set of air control components 6 is corresponding to the air intake 212 of an annular slot 211. The air control component 6 includes an annular baffle 61 and a drive unit 64. The annular baffle 61 is set below the air intake 212 and can rotate around the central axis of the disc body 21. It has a communication port 611 corresponding to the air intake 212. The drive unit 64 is fixedly installed in the cavity of the disc body 21 and is connected to the annular baffle 61. It can drive the annular baffle 61 to rotate, so as to realize the alignment and conduction or misalignment and blockage of the communication port 611 and the air intake 212, thereby controlling the on / off state of the air intake 212.

[0045] Specifically, the annular baffle 61 is rotatably connected to the disc body 21 via the guide rail 62, and a sealing treatment is performed between the annular baffle 61 and the upper surface of the cavity of the disc body 21, thus achieving a sealed rotation between the annular baffle 61 and the inner wall of the disc body 21, so as to ensure that air leakage is not likely to occur when the annular baffle 61 seals the air intake 212.

[0046] Among the aforementioned components, the annular baffle 61 is the core component for controlling the opening and closing of the air intake 212, used to precisely block or open the air intake 212 by fitting it against the bottom; the drive unit 64 is the core structure that provides rotational power to the annular baffle 61, fixedly installed in the cavity of the disc body 21, and connected to the annular baffle 61 for transmission, which can stably drive the annular baffle 61 to rotate; the cavity of the disc body 21 is the mounting carrier of the air control assembly 6, and at the same time provides installation space for the drive unit 64 and the annular baffle 61. All components are interconnected and work together to ensure the stable operation of the air control assembly 6.

[0047] This structural design enables precise control of the suction port 212, avoiding the waste of negative pressure caused by idle suction ports 212, allowing the negative pressure to be concentrated on the area to be processed, effectively improving adsorption stability and preventing blank displacement; at the same time, the fitting design of the annular baffle 61 has strong sealing performance, which can avoid negative pressure leakage, and the stable drive of the drive unit 64 can ensure precise baffle switching, further ensuring the stability of subsequent milling processing, improving the processing accuracy of the sealing ring, reducing processing errors, making the entire processing process more efficient and reliable, and helping to obtain high-quality sealing ring products.

[0048] In some embodiments, the lower surface of the annular baffle 61 is coaxially fixed with annular teeth 63, and the drive unit 64 is composed of a drive motor 641 and a drive gear 642. The drive motor 641 is fixed to the upper inner wall of the cavity of the disc body 21, and the drive gear 642 is coaxially fixed on the output shaft of the drive motor 641. The drive gear 642 meshes with the annular teeth 63, and provides power support for the rotation of the annular baffle 61 through gear meshing transmission.

[0049] Among them, the annular tooth 63 is a transmission structure that engages with the drive gear 642 on the lower surface of the annular baffle 61. It is coaxially fixed below the annular baffle 61 and is used to achieve meshing transmission with the drive gear 642. The drive motor 641 is the core component that provides power. It is fixedly installed on the upper inner wall of the cavity of the disc body 21 and provides power for the rotation of the annular baffle 61. The drive gear 642 is the key component for power transmission. One end is fixed to the output shaft of the drive motor 641, and the other end meshes with the annular tooth 63, transmitting the power of the drive motor 641 to the annular baffle 61. All components are interconnected. The drive motor 641 drives the drive gear 642 to rotate. The drive gear 642, through meshing with the annular tooth 63, drives the annular baffle 61 to rotate around the central axis, forming a complete power transmission link.

[0050] This structural design achieves stable power transmission. The gear meshing transmission method effectively avoids slippage, ensuring the accuracy and stability of the rotation of the annular baffle 61, thereby precisely controlling the on / off state of the suction port 212. At the same time, the drive motor 641 is fixedly installed in the cavity of the disc body 21, without occupying extra space or affecting the smoothness of the negative pressure transmission channel. This not only ensures the normal operation of the air control component 6, but also allows the annular baffle 61 to accurately switch between blocking and opening the suction port 212 through precise power transmission, providing a reliable guarantee for subsequent adsorption fixation and processing accuracy, and further improving the operational stability and processing quality of the entire equipment.

[0051] In some embodiments, multiple drive units 64 are evenly distributed around the annular baffle 61, cooperating with the annular baffle 61 to provide stable power to the annular baffle 61. This design of evenly distributed multiple drive units 64 avoids wear and tear caused by long-term high-load operation of a single drive unit 64, extending the equipment's service life. Furthermore, the synergistic effect of multiple drive units 64 results in a more even weight distribution on the milling disc 2, making rotation more stable and effectively reducing the impact of milling disc 2 wobbling on machining accuracy. Simultaneously, the concentrated negative pressure effect further enhances the overall stability and reliability of the machining process, providing a strong guarantee for high-quality completion of the sealing ring machining.

[0052] Figure 6 A flowchart illustrating a sealing ring manufacturing process according to an embodiment of the present invention is shown. (Reference) Figure 6 As shown, a sealing ring manufacturing process includes the following steps: S1: Blank positioning and placement: The sealing ring blank is placed coaxially in the corresponding annular groove 211 of the milling disc 2 to ensure that the blank and the milling disc 2 remain coaxial, laying the foundation for subsequent processing. At the same time, it adapts to the processing requirements of blanks of different specifications and improves the versatility of the process.

[0053] S2: Idle air vent sealing. After the sealing ring blank is placed and before the negative pressure component 3 is started, the annular baffle 61 is driven to rotate by the corresponding drive unit 64 to completely block the air intake 212 corresponding to the annular slot 211 where the blank is not placed, leaving only the air intake 212 corresponding to the annular slot 211 where the blank is placed in the conducting state, so as to ensure that the negative pressure can be concentrated on the blank bonding area and avoid the waste of negative pressure.

[0054] S3: Negative pressure adsorption fixation. The negative pressure component 3 is activated, and a uniform negative pressure is applied to the blank in the annular slot 211 through the air intake 212, so that the blank is flatly adsorbed and fixed on the surface of the milling disc 2. This completely eliminates the traditional rigid clamping method, effectively eliminates the deformation of the blank caused by local stress, and ensures the original shape and processing accuracy of the blank.

[0055] S4: Synchronous rotation drive, controls the milling disc 2 to rotate at a constant speed around its own vertical axis, driving the fixed sealing ring blank to rotate synchronously, ensuring that the blank rotates smoothly without deviation or shaking, providing a stable working condition for subsequent milling processing.

[0056] S5: Precision milling and shaping. Start the milling cutter 52 power source 51 to drive the milling cutter 52 to rotate at high speed. At the same time, through the coordinated cooperation of the longitudinal displacement mechanism 53 and the transverse displacement mechanism 54, the position of the milling cutter 52 is precisely adjusted to perform fine milling on the rotating blank, remove the excess part, and finally obtain the target sealing ring that meets the requirements.

[0057] In the description of this specification, the terms "connection," "installation," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0058] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A sealing ring preparation device, characterized in that, include: Body (1), A milling disc (2) is used to drive the sealing ring blank to rotate synchronously. The milling disc (2) is horizontally set on the machine body (1) and rotates around its own vertical axis to be connected to the machine body (1). The upper surface of the milling disc (2) is coaxially provided with multiple annular slots (211) for adapting sealing ring blanks of different specifications. The bottom of each annular slot (211) is provided with multiple air inlets (212) spaced apart along the circumference. Negative pressure component (3) is installed inside the body (1), and the suction end of the negative pressure component (3) is connected to all suction ports (212). It is used to coaxially adsorb and fix the sealing ring blank in the annular slot (211) by uniform negative pressure throughout the entire area, so as to avoid the blank being clamped and deformed.

2. The sealing ring preparation equipment according to claim 1, characterized in that, The milling disk (2) includes The disc body (21) has an annular slot (211) and an air inlet (212) on it. The disc body (21) has a cavity inside, and the cavity is connected to each of the air inlets (212). Synchronous shaft (22) is coaxially arranged with the disk body (21), and one end is fixedly connected to the bottom surface of the disk body (21). The synchronous shaft (22) is a tubular structure and is interconnected with the cavity of the disk body (21).

3. The sealing ring preparation equipment according to claim 2, characterized in that, The negative pressure component (3) includes The adapter (31) has its air inlet sealed and rotatably connected to the port of the synchronous shaft (22). A vacuum pump (32) is provided with its air inlet connected to the air outlet of the adapter (31) to provide negative pressure to the air inlet (212) of the disc (21).

4. The sealing ring preparation equipment according to claim 2, characterized in that, The machine body (1) is provided with a drive assembly (4) for rotating the milling disc (2), the drive assembly (4) including Active motor (41), The drive pulley (42) is coaxially fixed to the output shaft of the drive motor (41). The driven pulley (43) is coaxially fixed to the circumference of the synchronous shaft (22). The drive belt (44) is simultaneously fitted onto the driving pulley (42) and the driven pulley (43).

5. The sealing ring preparation equipment according to claim 2, characterized in that, The machine body (1) is provided with a milling device (5), the milling device (5) includes A power source (51) is used to provide milling power to the milling cutter (52); The milling cutter (52) is connected to the output end of the power source (51). The cutting end of the milling cutter (52) is set towards the sealing ring blank on the milling disc (2) and is used to perform fine part and contour milling on the blank. A longitudinal displacement mechanism (53) is installed on the machine body (1). The power source (51) is connected to the longitudinal displacement mechanism (53). The longitudinal displacement mechanism (53) is used to drive the power source (51) and the milling cutter (52) to rise and fall in the vertical direction, and to adjust the cutting depth between the milling cutter (52) and the sealing ring blank. A transverse displacement mechanism (54) is installed on the machine body (1). The longitudinal displacement mechanism (53) is connected to the transverse displacement mechanism (54). The transverse displacement mechanism (54) is used to drive the longitudinal displacement mechanism (53), the power source (51) and the milling cutter (52) to move in the horizontal direction, and adjust the transverse machining position between the milling cutter (52) and the sealing ring blank to adapt to the milling requirements of sealing ring blanks of different specifications.

6. The sealing ring preparation equipment according to claim 2, characterized in that, The cavity of the disc body (21) is provided with multiple sets of air control components (6), and each set of air control components (6) is correspondingly provided with an air intake (212) of an annular slot (211); The air control component (6) includes: An annular baffle (61) is attached to the lower part of the air inlet (212) and can rotate relative to the disc body (21) around the central axis of the disc body (21). The annular baffle (61) has a communication port (611) for communicating with the air inlet (212). The drive unit (64) is fixedly installed in the cavity of the disc body (21). The output end of the drive unit (64) is connected to the annular baffle (61) for driving the annular baffle (61) to rotate, so as to realize the alignment and conduction or misalignment and blockage of the communication port (611) and the air intake port (212).

7. The sealing ring preparation equipment according to claim 6, characterized in that, The lower surface of the annular baffle (61) is coaxially fixed with annular teeth (63). The drive unit (64) includes: The drive motor (641) is fixed to the upper inner wall of the cavity of the disk body (21). The drive gear (642) is coaxially fixed to the output shaft of the drive motor (641) and meshes with the ring gear (63).

8. The sealing ring preparation equipment according to claim 7, characterized in that, Multiple drive units (64) are arranged along the circumference of the annular baffle (61), and the multiple drive units (64) are evenly distributed.

9. A process for manufacturing a sealing ring, characterized in that, The process, implemented using the sealing ring preparation equipment as described in any one of claims 1-8, includes the following steps: The sealing ring blank is placed coaxially in the corresponding annular groove (211) on the milling disc (2); Start the negative pressure component (3) and apply uniform negative pressure to the blank in the annular slot (211) through the air intake (212) so that the blank is flat and adsorbed and fixed on the surface of the milling disk (2) to eliminate rigid clamping deformation. The control milling disk (2) rotates at a constant speed around its own vertical axis, driving the sealing ring blank to rotate synchronously; The power source (51) drives the milling cutter (52) to rotate. The position of the milling cutter (52) is adjusted by the longitudinal displacement mechanism (53) and the transverse displacement mechanism (54) to mill the rotating sealing ring blank and obtain the target sealing ring.

10. The sealing ring preparation equipment according to claim 9, characterized in that, After placing the sealing ring blank into the corresponding annular groove (211) and before starting the negative pressure assembly (3), The corresponding drive unit (64) drives the annular baffle (61) to rotate, completely blocking the air intake (212) corresponding to the annular slot (211) where no blank is placed, and keeping the air intake (212) corresponding to the annular slot (211) where the blank is placed open, so that the negative pressure is concentrated on the blank bonding area, thereby improving the stability of adsorption and fixation.

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