A sealing gasket circumferential cutting device
By designing a gasket cutting device, a rotary table and multiple positioning mechanisms are used to achieve rapid and stable rotation and precise centering of the workpiece, solving the problems of low efficiency, high cost and poor quality in gasket processing, and realizing efficient and high-quality cutting processing.
Patent Information
- Application Number
- CN202522658547.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-16
- Publication Date
- 2026-11-06
- Estimated Expiration
- 2035-12-16
AI Technical Summary
Existing gasket processing methods are inefficient, costly, and of poor quality. Stamping processes involve a wide variety of dies, and manual cutting relies on manual operation and lacks precision, resulting in poor sealing performance and consistency.
A sealing gasket cutting device is designed, which adopts a rotary worktable, multiple positioning mechanisms and adjustable cutting mechanism to achieve rapid and stable rotation and precise centering of the workpiece. Through automated positioning and cutting, it reduces reliance on manual labor and production costs.
It enables efficient and high-quality round cutting of sealing gaskets of different sizes, significantly improving production efficiency and reducing costs, and solving the problems of low efficiency, high cost and poor quality in existing technologies.
Smart Images
Figure CN224939213U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of mechanical processing technology, and in particular relates to a device for cutting a sealing gasket into circles. Background Technology
[0002] Gaskets, as critical sealing elements, are widely used in mechanical devices, industrial equipment, and fluid transport pipeline systems. Their core function is to ensure the reliability of the seal at the connection points and effectively prevent leakage of various media. These gaskets are typically made of metal sheets or non-metallic composite materials and must be precisely molded into specific geometric shapes, with the production of circular gaskets being particularly common.
[0003] In existing processing technologies, the main methods for processing gaskets include stamping and cutting. Stamping uses specialized circular dies for batch cutting, which offers certain production efficiency advantages. However, each gasket specification requires a corresponding die, resulting in a large variety of dies, complex inventory management, and frequent die changes that not only extend the production preparation cycle but also significantly increase manufacturing costs. On the other hand, manual cutting requires operators to first draw the gasket outline on the raw material surface and then cut along the marked lines using scissors or cutting tools. This process is highly dependent on manual operation, which is not only time-consuming and labor-intensive but also prone to defects such as dimensional deviations, uneven edges, or burrs due to marking errors and insufficient cutting stability. These defects severely affect the assembly accuracy and sealing performance of the gaskets, thus reducing the overall product quality. These problems are particularly prominent in large-scale production, restricting the efficiency and consistency of gasket manufacturing. Therefore, there is an urgent need to design a gasket rounding device to solve these problems. Utility Model Content
[0004] The purpose of this invention is to provide a gasket cutting device. This invention has the advantages of improving the cutting accuracy and efficiency of gaskets through automated positioning and cutting, while reducing reliance on manual labor and production costs.
[0005] To achieve the above objectives, this utility model provides the following technical solution: A sealing gasket circumferential cutting device includes a mounting base with an operating table mounted on top, a rotating support fixedly connected to the operating table, and a mounting cover with a through hole at its center rotatably connected to the top of the rotating support via a thrust ball bearing. It also includes a hollow main shaft rotatably connected to the rotating support and passing through it, with the top of the hollow main shaft coaxially connected to the mounting cover. Furthermore, it includes a rotary drive assembly for driving the hollow main shaft to rotate. An operating turntable is coaxially fixed to the mounting cover, and several positioning mechanisms distributed circumferentially are mounted on the operating turntable for pressing and positioning the outer edge of the workpiece. It also includes a centering and positioning assembly coaxially passing through the hollow main shaft for positioning the workpiece. The operating turntable has a slot at its center for the centering and positioning component to pass through; it also includes a bracket mounted on a mounting base, on which a pressing component is mounted for pressing and positioning the center of the workpiece placed on the operating turntable; a cutting mechanism is provided above the operating turntable, and a position adjustment component is mounted on the operating platform for adjusting the radial and vertical positions of the cutting mechanism in the hollow spindle; the pressing component includes a lifting drive mechanism mounted on the bracket, a mounting joint is mounted on the moving end of the lifting drive mechanism, a lower pressing mounting sleeve is rotatably connected to the mounting joint, and a lower pressing plate is detachably connected to the lower pressing mounting sleeve, with a receiving hole at the center of the lower pressing plate for the centering and positioning component to be inserted and clearance-fitted with it.
[0006] Preferably, the position adjustment assembly includes a transverse mechanism one mounted on the operating table, a transverse mechanism two mounted at the moving end of the transverse mechanism one, and a longitudinal mechanism mounted at the moving end of the transverse mechanism two; the moving ends of the transverse mechanism one and the transverse mechanism two run in the same direction, both running radially along the hollow main shaft.
[0007] Preferably: the first transverse mechanism includes a guide rail seat mounted on the operating table, a plurality of transverse guide rails fixedly connected to the guide rail seat, and a transverse seat slidably connected to the plurality of transverse guide rails via sliders; it also includes a transverse lead screw rotatably connected to the guide rail seat and arranged parallel to the transverse guide rails, the transverse seat slidably connected to the transverse lead screw via a nut, and a transverse motor for driving the transverse lead screw rotatably; the second transverse mechanism includes a guide rail seat mounted on the first transverse seat, a plurality of transverse guide rails fixedly connected to the guide rail seat, a transverse seat slidably connected to the plurality of transverse guide rails via sliders, and a transverse lead screw rotatably connected to the guide rail seat rotatably and arranged parallel to the transverse guide rails, the transverse seat slidably connected to the transverse lead screw rotatably via a nut, and a transverse motor rotatably connected to drive the transverse lead screw rotatably; the second transverse lead screw and the first transverse lead screw are arranged parallel to each other and are radially parallel to the hollow main shaft.
[0008] Preferably, the longitudinal movement mechanism includes a longitudinal movement guide seat mounted on the moving end of the transverse movement mechanism two, a plurality of longitudinally arranged longitudinal movement guides fixedly connected to the longitudinal movement guide seat, a longitudinal movement mounting seat slidably connected to the plurality of longitudinal movement guides via a slider, and a cutting mechanism mounted on the longitudinal movement mounting seat; it also includes a longitudinal movement screw rotatably connected to and longitudinally arranged on the longitudinal movement guide seat, the longitudinal movement mounting seat being connected to the longitudinal movement screw via a nut, and a longitudinal movement motor mounted on the longitudinal movement guide seat for driving the longitudinal movement screw to rotate.
[0009] Preferably, the centering and positioning assembly includes a positioning rod that is coaxially arranged inside the hollow spindle and has a pointed top, the top of the positioning rod passing through a slot opened in the middle of the operating turntable; it also includes a positioning cylinder for driving the positioning rod to move longitudinally.
[0010] Preferably, the rotary drive assembly includes a drive housing mounted on a mounting base, a rotary main motor mounted on the drive housing, and a drive gear pair mounted between the output shaft of the rotary main motor and the lower end of the hollow main shaft; a positioning cylinder is mounted on the drive housing.
[0011] Preferably, the cutting mechanism includes a mounting plate fixed to a longitudinal mounting base, an adjustable cutter holder mounted on the mounting plate, a longitudinally extending strip hole on the adjustable cutter holder, the adjustable cutter holder being locked to the mounting plate by bolts passing through the strip hole, and also includes a cutter head mounting sleeve mounted on the adjustable cutter holder, a cutting cutter head that engages with the cutter head mounting sleeve passing through the cutter head mounting sleeve.
[0012] Preferably, a plurality of support wheel mechanisms are installed between the operating turntable and the operating platform, which are distributed at equal angles around the rotating support. The support wheel mechanism includes a roller seat installed on the operating platform, and support rollers are installed on the roller seat. The support rollers make rolling contact with the bottom surface of the operating turntable.
[0013] Compared with existing technologies, the advantages of this invention are as follows: This invention provides a gasket cutting device that effectively solves the problems of low efficiency, high cost, and poor quality in existing gasket processing through the synergistic effect of a rotating worktable, multiple positioning mechanisms, and an adjustable cutting mechanism. This device enables rapid and stable rotation and precise centering of the workpiece. Combined with the flexible adjustment of the cutting mechanism in the radial and vertical directions, it allows for efficient and high-quality cutting of gaskets of different sizes without the need for specialized molds, significantly improving production efficiency and reducing production costs. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the main view and partial cross-sectional structure of this utility model;
[0015] Figure 2 This is a three-dimensional structural diagram of the pressing component in this utility model;
[0016] Figure 3 This is a three-dimensional structural diagram of the position adjustment component in this utility model;
[0017] Figure 4 This is a three-dimensional structural diagram of the positioning mechanism and the operating turntable in this utility model;
[0018] Figure 5 This is a three-dimensional structural diagram of the support wheel mechanism in this utility model.
[0019] In the diagram: 1. Mounting base; 2. Rotary main motor; 3. Operating platform; 4. Bracket; 5. Pressing assembly; 5-1. Lower pressing mounting sleeve; 5-2. Lower pressing plate; 5-3. Lifting mounting seat; 5-4. Lifting cylinder seat; 5-5. Lifting guide rod; 5-6. Lifting drive cylinder; 5-7. Mounting connector; 6. Position adjustment assembly; 6-1. Horizontal movement mechanism one; 6-1-1. Horizontal movement motor one; 6-1-2. Guide rail seat one; 6-1-3. Horizontal movement guide rail one; 6-1-4. Horizontal movement screw one; 6-1-5. Horizontal movement seat one; 6-2. Horizontal movement mechanism two; 6-2-1. Horizontal movement motor two; 6-2-2. Horizontal movement screw two; 6-2-3. Horizontal movement guide rail two; 6-2-4. Horizontal movement seat two; 6-2-5, Guide rail seat 2; 6-3, Longitudinal movement mechanism; 6-3-1, Longitudinal movement motor; 6-3-2, Longitudinal movement guide rail seat; 6-3-3, Longitudinal movement mounting seat; 6-3-4, Longitudinal movement lead screw; 6-3-5, Longitudinal movement guide rail; 7, Cutting mechanism; 7-1, Adjustable cutter holder; 7-2, Cutter head mounting sleeve; 7-3, Cutting cutter head; 8, Mounting cover; 9, Positioning mechanism; 9-1, L-shaped positioning block; 9-2, Locking bolt; 10, Operating turntable; 10-1, Positioning sleeve; 11, Support wheel mechanism; 11-1, Roller seat; 11-2, Support roller; 12, Rotary support sleeve; 13, Drive housing; 14, Drive gear pair; 15, Hollow spindle; 16, Positioning cylinder; 17, Positioning rod. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Please see Figure 1The sealing gasket cutting device of this utility model includes a mounting base 1 with an operating platform 3 mounted on top, a rotating support 12 fixedly connected to the operating platform 3, and a mounting cover 8 with a through hole at the center rotatably connected to the top of the rotating support 12 via a thrust ball bearing. It also includes a hollow main shaft 15 rotatably connected to the rotating support 12, with the top of the hollow main shaft 15 coaxially connected to the mounting cover 8. Furthermore, it includes a rotary drive assembly for driving the hollow main shaft 15 to rotate; the mounting cover 8 is coaxially connected to the hollow main shaft 15. The system is fixedly connected to an operating turntable 10, on which several positioning mechanisms 9 are installed in a circumferential direction for pressing and positioning the outer edge of the workpiece; it also includes a centering and positioning component coaxially inserted in a hollow spindle 15 for positioning the workpiece; a slot is provided at the center of the operating turntable 10 for the centering and positioning component to pass through; and it also includes a bracket 4 installed on a mounting base 1, on which a pressing component 5 is installed for pressing and positioning the center of the workpiece placed on the operating turntable 10.
[0022] A cutting mechanism 7 is provided above the operating turntable 10, and a position adjustment component 6 is also included on the operating platform 3 for adjusting the radial and vertical positions of the cutting mechanism 7 on the hollow main shaft 15; for example Figure 2 As shown, the pressing component 5 includes a lifting drive mechanism mounted on the bracket 4, an installation joint 5-7 mounted on the moving end of the lifting drive mechanism, a pressing mounting sleeve 5-1 rotatably connected to the installation joint 5-7, and a pressing plate 5-2 detachably connected to the pressing mounting sleeve 5-1. A receiving hole is provided at the center of the pressing plate 5-2 for the centering and positioning component to be inserted and to be fitted with it.
[0023] The gasket cutting device of this embodiment effectively solves the problems of low efficiency, high cost, and poor quality in existing gasket processing through the synergistic effect of its rotating worktable, multiple positioning mechanisms, and adjustable cutting mechanism. This device enables rapid and stable rotation and precise centering of the workpiece. Combined with the flexible adjustment of the cutting mechanism in the radial and vertical directions, it allows for efficient and high-quality cutting of gaskets of different sizes without the need for specialized molds, significantly improving production efficiency and reducing production costs.
[0024] like Figure 3 As shown, the position adjustment assembly 6 includes a transverse movement mechanism 6-1 mounted on the operating platform 3, a transverse movement mechanism 6-2 mounted at the moving end of the transverse movement mechanism 6-1, and a longitudinal movement mechanism 6-3 mounted at the moving end of the transverse movement mechanism 6-2. The moving ends of the transverse movement mechanism 6-1 and the transverse movement mechanism 6-2 move in the same direction, both along the radial direction of the hollow main shaft 15.
[0025] The transverse movement mechanism 6-1, serving as the first-stage radial adjustment unit of the position adjustment assembly 6, primarily provides a wide range of radial movement capabilities to accommodate the cutting of gaskets with different diameters. It provides the basic positioning for subsequent fine adjustments. The transverse movement mechanism 6-2, the second-stage radial adjustment unit of the position adjustment assembly 6, is installed at the moving end of the transverse movement mechanism 6-1. Its main function is to provide finer radial position adjustments based on the coarse positioning of the transverse movement mechanism 6-1, ensuring the accuracy of the cutting diameter. The longitudinal movement mechanism 6-3, installed at the moving end of the transverse movement mechanism 6-2, is primarily responsible for the vertical position adjustment of the cutting mechanism 7. This allows the cutting mechanism 7 to adapt to workpieces of different thicknesses and precisely control the cutting depth. Furthermore, the moving ends of the transverse movement mechanisms 6-1 and 6-2 operate in the same direction, both along the radial direction of the hollow main shaft 15. This design ensures the coordinated operation of the two transverse movement mechanisms in the radial direction, forming a series radial adjustment system.
[0026] Through the above configuration, the position adjustment component 6 employs a combination of two-stage transverse movement mechanisms 6-1 and 6-2 and a single-stage longitudinal movement mechanism 6-3. This effectively solves the problem in the prior art where the position adjustment of the cutting mechanism 7 lacks precision and stability, resulting in insufficient flexibility or efficiency in radial and vertical adjustments during cutting operations. Specifically, the transverse movement mechanism 6-1 provides a wide range of coarse radial adjustment capabilities, while the transverse movement mechanism 6-2, installed at its moving end, achieves finer radial micro-adjustment on this basis. The two work together to ensure high-precision positioning of the cutting mechanism 7 in the radial direction. Simultaneously, the longitudinal movement mechanism 6-3, installed at the moving end of the transverse movement mechanism 6-2, is responsible for the precise vertical lifting and lowering of the cutting mechanism 7, thereby adapting to workpieces of different thicknesses and precisely controlling the cutting depth. This graded, multi-dimensional adjustment mechanism makes the position adjustment of the cutting mechanism 7 more flexible, precise, and stable, significantly improving the cutting quality and efficiency of the sealing gasket and reducing the scrap rate.
[0027] like Figure 3 As shown, the transverse movement mechanism 6-1 includes a guide rail seat 6-1-2 mounted on the operating platform 3, a plurality of transverse movement guide rails 6-1-3 fixedly connected to the guide rail seat 6-1-2, and a transverse movement seat 6-1-5 slidably connected to the plurality of transverse movement guide rails 6-1-3 via a slider; it also includes a transverse movement screw 6-1-4 rotatably connected to the guide rail seat 6-1-2 and arranged parallel to the transverse movement guide rails 6-1-3, the transverse movement seat 6-1-5 being connected to the transverse movement screw 6-1-4 via a nut, and a transverse movement motor 6-1-1 for driving the transverse movement screw 6-1-4 to rotate;
[0028] The transverse movement mechanism 6-2 includes a guide rail seat 6-2-5 mounted on a transverse movement seat 6-1-5, several transverse movement guide rails 6-2-3 fixedly connected to the guide rail seat 6-2-5, a transverse movement seat 6-2-4 slidably connected to the several transverse movement guide rails 6-2-3 via sliders, a transverse movement screw 6-2-2 rotatably connected to the guide rail seat 6-2-5 and arranged parallel to the transverse movement guide rails 6-2-3, a transverse movement seat 6-2-4 connected to the transverse movement screw 6-2-2 via a nut, and a transverse movement motor 6-2-1 for driving the transverse movement screw 6-2-2 to rotate; the transverse movement screw 6-2-2 and the transverse movement screw 6-1-4 are arranged parallel to each other and are radially parallel to the hollow main shaft 15.
[0029] Through the above configuration, this application provides a high-precision and high-stability radial position adjustment method for the cutting mechanism. The transverse movement mechanism 6-1 and the transverse movement mechanism 6-2 employ a structure combining lead screw drive and guide rail sliding. The transverse movement motor 6-1-1 drives the transverse lead screw 6-1-4 to rotate, which in turn drives the transverse movement seat 6-1-5 to move precisely linearly along the transverse guide rail 6-1-3 via the lead screw nut. Furthermore, the transverse movement motor 6-2-1 drives the transverse lead screw 6-2-2 to rotate, which in turn drives the transverse movement seat 6-2-4 to move further linearly along the transverse guide rail 6-2-3 via the lead screw nut. This two-stage series transverse movement mechanism design not only achieves a large radial adjustment range but also effectively avoids the gap and positioning inaccuracies that may exist in traditional sliding mechanisms due to the inherent high precision and self-locking characteristics of the lead screw drive. Meanwhile, the transverse lead screws 6-2-2 and 6-1-4 are arranged in parallel and radially parallel to the hollow main shaft 15, ensuring that the cutting mechanism 7 maintains the correct directionality during radial movement and avoiding cutting errors caused by directional deviations. This precise combination of mechanical transmission and guidance significantly improves the positioning accuracy and repeatability of the cutting mechanism 7 in the radial direction, thereby ensuring that the sealing gasket circular cutting device can achieve high-quality and high-precision cutting results when cutting workpieces of different sizes, effectively solving the problem of inaccurate position adjustment and its impact on cutting accuracy in existing technologies.
[0030] like Figure 3As shown, the longitudinal movement mechanism 6-3 includes a longitudinal movement guide seat 6-3-2 mounted on the moving end of the transverse movement mechanism 6-2. Several longitudinally arranged longitudinal movement guides 6-3-5 are fixedly connected to the longitudinal movement guide seat 6-3-2. A longitudinal movement mounting seat 6-3-3 is slidably connected to the several longitudinal movement guides 6-3-5 via a slider. The cutting mechanism 7 is mounted on the longitudinal movement mounting seat 6-3-3. It also includes a longitudinal movement screw 6-3-4 rotatably connected to the longitudinal movement guide seat 6-3-2 and arranged longitudinally. The longitudinal movement mounting seat 6-3-3 is connected to the longitudinal movement screw 6-3-4 via a nut. It also includes a longitudinal movement motor 6-3-1 mounted on the longitudinal movement guide seat 6-3-2 for driving the longitudinal movement screw 6-3-4 to rotate.
[0031] Specifically, the longitudinal movement mechanism 6-3, as a functional component that enables the precise vertical movement of the cutting mechanism 7, provides a stable and controllable vertical displacement platform to accommodate workpieces of different thicknesses or cutting heights. The cutting mechanism 7 is directly mounted on the longitudinal movement mounting base 6-3-3, which serves as the moving carrier for the cutting mechanism 7. Through cooperation with the slider and the longitudinal movement screw 6-3-4, it achieves precise vertical displacement of the cutting mechanism 7. It typically possesses sufficient strength and rigidity to withstand the weight of the cutting mechanism 7 and the reaction force during cutting.
[0032] The cutting mechanism 7 is the core component that performs the cutting operation. Its function is to precisely cut the workpiece according to the preset cutting path and depth. The cutting mechanism 7 can include various types of cutting tools, such as rotary blades, fixed blades, laser cutting heads, or waterjet cutting heads, to adapt to different materials and cutting requirements.
[0033] like Figure 3 As shown, the cutting mechanism 7 includes a mounting plate fixed to a longitudinal mounting base 6-3-3, an adjustable blade holder 7-1 mounted on the mounting plate, a longitudinally extending strip hole on the adjustable blade holder 7-1, and the adjustable blade holder 7-1 being locked to the mounting plate by bolts passing through the strip hole. It also includes a blade head mounting sleeve 7-2 mounted on the adjustable blade holder 7-1, and a cutting blade 7-3 that is screwed into the blade head mounting sleeve 7-2.
[0034] The mounting plate is fixed to the longitudinal mounting base 6-3-3, and its function is to provide a stable and rigid mounting foundation for the entire cutting mechanism 7. The mounting plate can be made of high-strength metal materials, such as steel plates or aluminum alloy plates, and is firmly connected to the longitudinal mounting base 6-3-3 by welding, bolting, or integral casting to ensure the stability of the cutting mechanism 7 during the cutting process and reduce vibration and displacement.
[0035] The adjustable tool holder 7-1 is mounted on the mounting plate. Its main function is to support the tool head mounting sleeve 7-2 and the cutting tool head 7-3, and to allow for position adjustment. The adjustable tool holder 7-1 has a longitudinally extending slot, which allows the adjustable tool holder 7-1 to slide and adjust along the extension direction of the slot on the mounting plate.
[0036] The cutting head mounting sleeve 7-2 is mounted on the adjustable tool holder 7-1. Its function is to provide a stable mounting interface for the cutting head 7-3 and to accommodate the threaded portion of the cutting head 7-3. The cutting head 7-3 passes through and is threaded into the cutting head mounting sleeve 7-2. This threaded connection is key to achieving precise height adjustment of the cutting head 7-3, i.e., the cutting depth. By rotating the cutting head 7-3, it can be moved axially within the cutting head mounting sleeve 7-2, thereby precisely controlling the height of the cutting tip relative to the workpiece to accommodate different thicknesses or cutting depths. The cutting head 7-3 is typically made of high-hardness, wear-resistant materials, such as cemented carbide, high-speed steel, or ceramic materials, to ensure its cutting performance and service life.
[0037] like Figure 1 As shown, the centering and positioning assembly includes a positioning rod 17 that is coaxially arranged inside the hollow main shaft 15 and has a pointed top. The top of the positioning rod 17 passes through a slot opened in the middle of the operating turntable 10. It also includes a positioning cylinder 16 for driving the positioning rod 17 to move longitudinally.
[0038] Specifically, the positioning rod 17 is a slender component used to accurately determine the center position of the workpiece. It passes through and is coaxially aligned with the hollow spindle 15, aiming to ensure that the workpiece is accurately aligned with the rotation center of the device before cutting, providing a precise reference for subsequent cutting operations. The positioning rod 17 can be made of high-strength, wear-resistant metal, and its surface can be hardened or plated to improve durability and positioning accuracy. Its tip can be tapered, conical, or pyramidal to accommodate different workpiece center hole shapes or surface characteristics. The top of the positioning rod 17 passes through a slot in the center of the operating turntable 10, which is an opening reserved in the central area of the operating turntable 10 to accommodate the positioning rod 17. This design allows the positioning rod 17 to extend or retract freely during longitudinal movement, thereby achieving workpiece positioning and release while avoiding interference from the operating turntable 10 on the positioning operation. The slot can be a circular hole with a diameter slightly larger than the diameter of the positioning rod 17 to provide sufficient clearance to ensure smooth movement of the positioning rod 17.
[0039] The positioning cylinder 16, used to drive the longitudinal movement of the positioning rod 17, is an actuator that provides power to make the positioning rod 17 move up and down along its axis. The introduction of the positioning cylinder 16 enables automated and precise longitudinal movement of the positioning rod 17, thereby quickly and accurately completing the workpiece positioning and release operations, improving operational efficiency and automation. The positioning cylinder 16 can be a pneumatic cylinder, using compressed air pressure to drive the piston rod to extend and retract, thus moving the positioning rod 17. This has the advantages of simple structure, fast response speed, and low cost. Alternatively, the positioning cylinder 16 can also be a hydraulic cylinder, using hydraulic oil pressure to drive the piston rod to extend and retract, offering advantages of high output force, smooth movement, and high positioning accuracy. Furthermore, an electric actuator can be used, using a motor to drive a lead screw and nut mechanism to achieve linear motion, offering advantages of precise control and easy integration into automation systems.
[0040] Through the above-described configuration, this application further optimizes the workpiece centering and positioning process. The positioning rod 17 passes through the hollow spindle 15 and is coaxially aligned with it, ensuring that the center of the positioning rod 17 is strictly aligned with the rotation center of the device. This allows for direct alignment with the center point when the workpiece is placed, effectively eliminating the problem of inaccurate cutting caused by positioning deviations. The top of the positioning rod 17 is designed as a pointed tip, enabling it to be quickly and accurately inserted into the center hole or preset mark position of the workpiece, significantly reducing manual adjustment time and improving positioning accuracy and efficiency.
[0041] See further Figure 1 The rotary drive assembly includes a drive housing 13 mounted on a mounting base 1, a rotary main motor 2 mounted on the drive housing 13, and a drive gear pair 14 mounted between the output shaft of the rotary main motor 2 and the lower end of the hollow main shaft 15; a positioning cylinder 16 is mounted on the drive housing 13.
[0042] Through the above configuration, the drive gear pair 14 (including the driving gear keyed to the output shaft of the rotary main motor 2 and the driven gear installed at the lower end of the hollow main shaft 15) is completely enclosed inside the drive housing 13, effectively isolating dust, chips, and impurities from the external environment. This significantly reduces gear wear and extends the service life of the drive gear pair 14. Simultaneously, the drive housing 13 provides a stable working environment for the drive gear pair 14, ensuring the smoothness and reliability of the transmission process. The rotary main motor 2 is mounted on the outer wall of the drive housing 13, which not only facilitates motor heat dissipation and daily maintenance but also isolates the vibration generated by the motor from the internal gear transmission system to a certain extent, further improving the operational stability of the entire device. This structural design makes the entire rotary drive assembly more compact and safer, reducing the risk of failure due to external factors, thereby ensuring the long-term efficient operation of the sealing gasket tangent device.
[0043] Furthermore, the aforementioned drive gear pair 14 includes a drive gear keyed to the output shaft of the rotary main motor 2, and a driven gear mounted on the lower end of the hollow main shaft 15, with the drive gear and the driven gear meshing together; the drive housing 13 covers the outside of the drive gear pair 14, and the rotary main motor 2 is mounted on the outer wall of the drive housing 13.
[0044] See further Figure 1 and Figure 5 Between the operating turntable 10 and the operating platform 3, there are several support wheel mechanisms 11 that are distributed at equal angles around the rotating support sleeve 12. The support wheel mechanism 11 includes a roller seat 11-1 installed on the operating platform 3, and a support roller 11-2 installed on the roller seat 11-1. The support roller 11-2 makes rolling contact with the bottom surface of the operating turntable 10.
[0045] Specifically, the support wheel mechanism 11 is a mechanical structure used to provide additional support for the operating turntable 10. Its "equal angular distribution around the rotating sleeve 12" means that multiple support wheel mechanisms 11 are evenly arranged below the operating turntable 10 with the rotating sleeve 12 as the center, ensuring that the operating turntable 10 is subjected to uniform force during rotation and avoiding swaying caused by localized stress concentration or imbalance. For example, three or four support wheel mechanisms 11 can be set, evenly distributed at intervals of 120 degrees or 90 degrees respectively. This distribution method aims to provide stable multi-point support to cope with centrifugal forces or uneven loads that may be generated when the operating turntable 10 rotates at high speed or bears the weight of the workpiece.
[0046] The support roller 11-2 is a component that directly contacts the operating turntable 10 and provides rolling support. The support roller 11-2 is typically made of wear-resistant materials, such as high-strength plastics, rubber, or metal, to ensure good durability and rolling performance.
[0047] With the above configuration, a plurality of support wheel mechanisms 11 are arranged at equal angles around the rotating support sleeve 12 between the operating turntable 10 and the operating platform 3. These support wheel mechanisms 11 are securely mounted on the operating platform 3 via roller seats 11-1, and the support rollers 11-2 make rolling contact with the bottom surface of the operating turntable 10. This design provides uniform and multi-point rolling support for the operating turntable 10 during rotation. When the operating turntable 10 carries a workpiece and rotates at high speed, the support rollers 11-2 effectively support the weight of the operating turntable 10 and the load of the workpiece, while significantly reducing frictional resistance through rolling contact, ensuring the smooth rotation of the operating turntable 10.
[0048] See further Figure 4The aforementioned positioning mechanism 9 includes an L-shaped positioning block 9-1, on which a strip-shaped hole extending along its length is formed. The L-shaped positioning block 9-1 is locked to the operating turntable 10 by a locking bolt 9-2 passing through the strip-shaped hole. An integrally formed downward-protruding protrusion at the inner end of the L-shaped positioning block 9-1 is used to press the edge of the workpiece. A positioning sleeve 10-1 is installed at a slot in the center of the operating turntable 10 through which the centering and positioning assembly can pass. The main function of the positioning sleeve 10-1 is to provide precise guidance and support for the centering and positioning assembly. Through the positioning sleeve 10-1, the centering and positioning assembly can be accurately inserted and aligned with the center of the workpiece, ensuring the centering accuracy of the workpiece.
[0049] The L-shaped structure of the L-shaped locating block 9-1 enables it to simultaneously position or hold the workpiece radially and axially, thereby improving the stability of the positioning. A strip-shaped hole extending along the length of the L-shaped locating block 9-1 is provided, which serves to provide an adjustable mounting position for the L-shaped locating block 9-1. Through this strip-shaped hole, the L-shaped locating block 9-1 can slide and adjust along its length within a certain range to accommodate workpieces of different sizes or shapes. This strip-shaped hole can be a continuous slot or multiple spaced elliptical holes, the length and width of which are designed according to the required adjustment range and the size of the locking bolt 9-2.
[0050] See further Figure 2 The aforementioned lifting drive mechanism includes a lifting cylinder seat 5-4 mounted on the bracket 4, a lifting drive cylinder 5-6 with its extended end facing downwards fixedly connected to the lifting cylinder seat 5-4, a lifting mounting seat 5-3 mounted on the extended end of the lifting drive cylinder 5-6, and several longitudinally arranged lifting guide rods 5-5 fixedly connected to the lifting mounting seat 5-3. Each lifting guide rod 5-5 is slidably connected to the lifting cylinder seat 5-4 through a linear bearing. The mounting joint 5-7 is mounted on the lifting mounting seat 5-3 and is coaxially arranged with the extended end of the lifting drive cylinder 5-6.
[0051] Among them, the lifting drive cylinder 5-6 can be a hydraulic cylinder, which drives the piston rod to extend and retract through the pressure of hydraulic oil, and has the advantages of large output force, smooth movement and high positioning accuracy; or, a pneumatic cylinder can be used, which drives the piston rod to extend and retract through compressed air, and has the advantages of fast response speed, simple structure and low cost; or, an electric push rod can be used, which drives the lead screw and nut mechanism through a motor to achieve linear motion, and has the advantages of precise control and easy integration into automation systems.
[0052] With the above settings, the lifting cylinder seat 5-4 provides a stable mounting base for the entire lifting drive mechanism, effectively preventing the mechanism from shaking during operation.
[0053] Working principle:
[0054] This gasket cutting device integrates rotation, positioning, and cutting mechanisms to provide an efficient, low-cost, and high-quality processing solution. Specifically, the mounting base 1 and the operating table 3 form the basic support structure to ensure the stability of the device; the rotating support 12 is connected to the mounting cover 8 via a thrust ball bearing to achieve low-friction rotation; the hollow spindle 15 is coaxially connected to the mounting cover 8 and driven by the rotation drive assembly, enabling continuous rotation and cutting of the workpiece, thus improving processing efficiency; the operating turntable 10 is equipped with a circumferentially distributed positioning mechanism 9 for pressing and positioning the outer edge of the workpiece to prevent offset during processing; the centering and positioning assembly passes through the hollow spindle 15 and through the central slot of the operating turntable 10 to achieve precise positioning of the workpiece center, ensuring concentricity of the cutting; the support... The pressing component 5 on the frame 4 drives the mounting joint 5-7, the pressing mounting sleeve 5-1, and the lower pressure plate 5-2 through the lifting drive mechanism to press and position the center of the workpiece. The receiving hole of the lower pressure plate 5-2 is clearance-fitted with the centering and positioning component, allowing for precise centering. The cutting mechanism 7 adjusts the radial and vertical positions through the position adjustment component 6 to adapt to different sized shims, eliminating the need for special molds and reducing processing costs. These features work together to solve the problems of low efficiency, high cost, and poor quality. Among them, rotary cutting and adjustable position improve efficiency, precise positioning ensures quality, and the universal design reduces reliance on molds.
Claims
1. A sealing gasket circumferential cutting device, characterized in that: The system includes a mounting base (1) with an operating platform (3) mounted on top, a rotating sleeve (12) fixedly connected to the operating platform (3), a mounting cover (8) with a through hole at the center rotatably connected to the top of the rotating sleeve (12) via a thrust ball bearing, a hollow spindle (15) rotatably connected to the rotating sleeve (12), the top of the hollow spindle (15) being coaxially connected to the mounting cover (8), a rotary drive assembly for driving the hollow spindle (15) to rotate; an operating turntable (10) coaxially fixed to the mounting cover (8), a plurality of positioning mechanisms (9) distributed circumferentially on the operating turntable (10) for pressing and positioning the outer edge of the workpiece; a centering and positioning assembly coaxially inserted into the hollow spindle (15) for positioning the workpiece; and a centering and positioning assembly for passing through the center of the operating turntable (10). The slot includes a bracket (4) mounted on the mounting base (1), and a pressing component (5) mounted on the bracket (4) for pressing and positioning the center of the workpiece placed on the operating turntable (10); a cutting mechanism (7) is provided above the operating turntable (10), and a position adjustment component (6) mounted on the operating plate (3) is also included for adjusting the radial and vertical positions of the cutting mechanism (7) in the hollow spindle (15); the pressing component (5) includes a lifting drive mechanism mounted on the bracket (4), an installation joint (5-7) is mounted on the moving end of the lifting drive mechanism, a lower pressing installation sleeve (5-1) is rotatably connected to the installation joint (5-7), and a lower pressing plate (5-2) is detachably connected to the lower pressing installation sleeve (5-1), and a receiving hole is provided at the center of the lower pressing plate (5-2) for the centering and positioning component to be inserted and to be fitted with it.
2. The sealing gasket circumferential cutting device as described in claim 1, characterized in that: The position adjustment assembly (6) includes a transverse mechanism one (6-1) installed on the operating table (3), a transverse mechanism two (6-2) installed at the moving end of the transverse mechanism one (6-1), and a longitudinal mechanism (6-3) installed at the moving end of the transverse mechanism two (6-2); the moving ends of the transverse mechanism one (6-1) and the transverse mechanism two (6-2) run in the same direction, both running in the radial direction along the hollow main shaft (15).
3. The sealing gasket circumferential cutting device as described in claim 2, characterized in that: The first transverse mechanism (6-1) includes a guide rail seat (6-1-2) mounted on the operating platform (3), a plurality of transverse guide rails (6-1-3) fixedly connected to the guide rail seat (6-1-2), and a transverse seat (6-1-5) slidably connected to the plurality of transverse guide rails (6-1-3) via a slider; it also includes a transverse lead screw (6-1-4) rotatably connected to the guide rail seat (6-1-2) and arranged parallel to the transverse guide rails (6-1-3), the transverse seat (6-1-5) being connected to the transverse lead screw (6-1-4) via a nut, and a transverse motor (6-1-1) for driving the transverse lead screw (6-1-4) to rotate; the second transverse mechanism (6-2) includes the transverse seat (6-1-5) The guide rail seat 2 (6-2-5) is mounted on the upper part. Several transverse guide rails 2 (6-2-3) are fixed on the guide rail seat 2 (6-2-5) and transverse seat 2 (6-2-4) is slidably connected to the several transverse guide rails 2 (6-2-3) by a slider. It also includes a transverse lead screw 2 (6-2-2) that is rotatably connected to the guide rail seat 2 (6-2-5) and is arranged parallel to the transverse guide rails 2 (6-2-3). The transverse seat 2 (6-2-4) is connected to the transverse lead screw 2 (6-2-2) by a nut. It also includes a transverse motor 2 (6-2-1) that drives the transverse lead screw 2 (6-2-2) to rotate. The transverse lead screw 2 (6-2-2) and the transverse lead screw 1 (6-1-4) are arranged parallel to each other and are radially parallel to the hollow main shaft (15).
4. The sealing gasket circumferential cutting device as described in claim 2, characterized in that: The longitudinal movement mechanism (6-3) includes a longitudinal movement guide seat (6-3-2) installed at the moving end of the transverse movement mechanism (6-2), a plurality of longitudinal movement guides (6-3-5) fixed on the longitudinal movement guide seat (6-3-2), a longitudinal movement mounting seat (6-3-3) slidably connected to the plurality of longitudinal movement guides (6-3-5) by a slider, and a cutter mechanism (7) installed on the longitudinal movement mounting seat (6-3-3); it also includes a longitudinal movement screw (6-3-4) rotatably connected to the longitudinal movement guide seat (6-3-2) and arranged longitudinally, the longitudinal movement mounting seat (6-3-3) being connected to the longitudinal movement screw (6-3-4) by a nut, and a longitudinal movement motor (6-3-1) installed on the longitudinal movement guide seat (6-3-2) for driving the longitudinal movement screw (6-3-4) to rotate.
5. The sealing gasket circumferential cutting device as described in claim 1, characterized in that: The centering and positioning assembly includes a positioning rod (17) that is coaxially arranged inside the hollow spindle (15) and has a pointed top. The top of the positioning rod (17) passes through a slot opened in the middle of the operating turntable (10). It also includes a positioning cylinder (16) for driving the positioning rod (17) to move longitudinally.
6. The sealing gasket circumferential cutting device as described in claim 5, characterized in that: The rotary drive assembly includes a drive housing (13) mounted on a mounting base (1), a rotary main motor (2) mounted on the drive housing (13), a drive gear pair (14) mounted between the output shaft of the rotary main motor (2) and the lower end of the hollow main shaft (15); and a positioning cylinder (16) mounted on the drive housing (13).
7. The sealing gasket cutting device as described in claim 4, characterized in that: a cutter... The mechanism (7) includes a mounting plate fixed to a longitudinal mounting base (6-3-3), an adjustable tool holder (7-1) mounted on the mounting plate, a longitudinally extending strip hole on the adjustable tool holder (7-1), the adjustable tool holder (7-1) being locked to the mounting plate by bolts passing through the strip hole, and a tool head mounting sleeve (7-2) mounted on the adjustable tool holder (7-1), a cutting tool head (7-3) screwed into the tool head mounting sleeve (7-2).
8. The sealing gasket circumferential cutting device as described in claim 1, characterized in that: in Between the operating turntable (10) and the operating platform (3), there are several support wheel mechanisms (11) distributed at equal angles around the rotating support (12). The support wheel mechanism (11) includes a roller seat (11-1) installed on the operating platform (3), and a support roller (11-2) installed on the roller seat (11-1). The support roller (11-2) makes rolling contact with the bottom surface of the operating turntable (10).