Comprehensive rotating platform for industrial equipment
Through the combined fixing method of flexible bending plates, spike balls and vacuum suction cups, combined with a mechanical linkage system, the problem of stable fixation of special-shaped workpieces on the rotating platform is solved, efficient workpiece fixation and anti-displacement capability are achieved, and production efficiency and quality are improved.
Patent Information
- Application Number
- CN202511193967.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-25
- Publication Date
- 2025-10-21
AI Technical Summary
When the existing rotating platform is used to fix special-shaped workpieces or workpieces with uneven surfaces, vacuum adsorption is prone to leakage, resulting in a decrease in adsorption force and limited anti-displacement ability. The workpiece is easily displaced or dropped due to external force impact, affecting production progress and quality.
The adaptive fitting structure of flexible bending plates and spike balls is adopted, combined with vacuum suction cups and mechanical clamping. Through the coordinated fixing mechanism of physical extrusion and air pressure adsorption, coordinated with the efficient and coherent mechanical linkage system and triple dynamic reinforcement design, the stable fixation of the workpiece is achieved.
It improves the workpiece's anti-displacement ability, ensures that the workpiece is not easily offset under external force impact, improves processing quality and the reliability of test data, adapts to diverse working conditions, and significantly improves production efficiency and product qualification rate.
Smart Images

Figure CN120816446A_ABST
Abstract
Description
Technical Field
[0001] The present invention belongs to the technical field related to industrial equipment, and more specifically, relates to an integrated rotating platform for industrial equipment. Background Art
[0002] In modern industrial production, rotary platforms, as core components of automated processing and inspection systems, are crucial for achieving continuous multi-station operations. Their performance directly determines the processing accuracy, inspection efficiency, and product qualification rate on the production line. They undertake core functions such as workpiece loading, positioning, rotational drive, and dynamic fixation, making them indispensable in automated production lines in fields such as automotive manufacturing, precision electronics, and aerospace. However, existing integrated rotary platforms suffer from the following drawbacks: Conventional rotary platforms currently have significant technical shortcomings in their workpiece securing process. Their securing methods are relatively simple, generally relying on pure mechanical clamping or a single pneumatic suction method. This significantly reduces their adaptability to irregularly shaped workpieces. This problem is particularly acute for workpieces with uneven surfaces, such as those that have undergone preliminary machining, bear machining marks, or have protrusions or depressions. The vacuum suction cup cannot achieve a tight fit against the workpiece surface, leaving numerous tiny gaps. These gaps can cause gas to leak when the air pump is operating, making it difficult to create a stable vacuum environment inside the vacuum cup and significantly reducing the suction force. In practice, this leakage significantly limits the ability of the pneumatic suction system to resist displacement, often only able to withstand relatively small external forces. During transportation prior to processing, even minor impacts such as collisions and vibrations can cause the workpiece to shift from the rotary platform or even fall, impacting production schedules and potentially damaging the workpiece, increasing production costs.
[0003] Therefore, in view of this, the existing structure and defects are studied and improved, and a comprehensive rotating platform for industrial equipment is provided to achieve a more practical and valuable purpose. Summary of the Invention
[0004] The present invention provides a comprehensive rotating platform for industrial equipment, which is used to overcome the above-mentioned defects in the prior art.
[0005] The purpose and function of the integrated rotary platform for industrial equipment of the present invention are achieved by the following specific technical means: A comprehensive rotating platform for industrial equipment includes a bracket, a rotating support component is fixedly installed above the bracket, a workpiece is placed on the surface of the rotating support component, and an extrusion locking device and a clamping arm gripping device are provided inside the rotating support component; The extrusion and locking device comprises a flexible bending plate and spike balls. The flexible bending plate is made of imported highly elastic polyurethane. When subjected to the weight of the workpiece, the flexible bending plate deforms with a centrally symmetrical distribution. This deformation prevents excessive localized pressure on the workpiece base, effectively protecting the surface accuracy of the base. The deformed flexible bending plate squeezes the spike balls, which are spherical and can be squeezed and deformed. The spheres are equipped with springs and have several rubber bumps on their surfaces. The multiple spike balls create friction on the base of the workpiece, thereby enhancing its stability. The clamp arm gripper device comprises a mechanical transmission component and a mechanical locking component. The mechanical transmission component pushes the mechanical locking component to clamp the bottom foot of the workpiece through the extrusion displacement of the spike ball.
[0006] A further technical solution is that the rotating support component includes a placement table, which has a bottom below and an opening above. The surface of the placement table is also provided with a center scale line to assist in positioning the workpiece, making it easier for the operator to align the center of gravity of the workpiece with the center of the placement table. A separator ring is provided inside the placement table, and a middle isolation ring is provided inside the separator ring. The separator ring divides the interior of the placement table into two cavities, the first cavity being close to one side of the middle isolation ring. The first cavity is provided between the middle isolation ring and the separator ring, and the second cavity is provided between the separator ring and the inner wall of the placement table. An extrusion drive assembly is installed in the first cavity, and a mechanical transmission assembly is provided inside the second cavity.
[0007] A further technical solution is that a vacuum adsorption assembly is fixedly installed on the inner side of the central isolation ring. The vacuum adsorption assembly includes an air collecting box, and multiple sets of fixed central shafts are fixedly installed above the air collecting box. The upper ends of the fixed central shafts are provided with foldable and telescopic parts, and the ends of the foldable and telescopic parts are fixedly connected with vacuum suction cups. The vacuum suction cups are made of wear-resistant, highly sealing nitrile rubber, and the surface is specially textured to adapt to the bottom wall of workpieces of different shapes, such as flat and slightly curved surfaces, with a degree of adhesion of over 95% to the workpiece surface. A cylinder interface is provided below the air collecting box for connection to an external air pump.
[0008] A further technical solution is that the mechanical transmission assembly includes a vertical shaft, which is made of 45 steel that has been quenched and tempered, with a bending strength of over 800 MPa. A first helical gear is fixedly connected to its lower end, and a rotary bearing is rotatably provided at the bottom of the first helical gear. The rotary bearing is fixedly connected to the bottom wall of the second cavity, and the radial runout does not exceed 0.01 mm. A second helical gear is fixedly connected to the upper end of the vertical shaft, and the second helical gear is fixed to the vertical shaft via a key connection. A third helical gear is mated to the outer side of the second helical gear. The tooth profiles of the two gears are precision-ground, resulting in a high degree of matching and a transmission efficiency of over 92%. A horizontal shaft is rotatably provided in the middle of the third helical gear. The horizontal shaft is made of high-strength alloy material with a yield strength of over 1000 MPa and a maximum torque of 500 N·m. A fixed limiter and a telescopic movable member are rotatably provided on its surface. A limit threaded rod is threadedly provided between the fixed limiter and the telescopic movable member, and an auxiliary clamping device is fixedly provided at the lower end of the telescopic movable member.
[0009] A further technical solution is that the end of the horizontal axis is rotatably mounted on the side wall of the truncated table, and the other end is rotatably connected to a mechanical locking assembly. The mechanical locking assembly includes a sliding block, and a middle ring block is slidably provided in the middle of the sliding block. High-temperature grease is applied between the sliding block and the middle ring block. The operating temperature range of the grease is 20°C to 150°C, and the friction coefficient can be reduced to below 0.05. One end of the middle ring block is fixedly connected to the horizontal axis, and the other end is provided with a pin contact assembly, and the contact end of the pin contact assembly is made of silicone material. The outer side of the sliding block is hinged with a first clamping arm and a second clamping arm. The first clamping arm and the second clamping arm are symmetrically arranged, and the clamping surface is provided with a diamond-shaped anti-slip pattern with a depth of 0.5mm.
[0010] In a further technical solution, the auxiliary clamping device includes an extension guide rod, the end of which is fixedly connected to a flexible clamping assembly. The flexible clamping assembly comprises a first capsule and a second capsule, between which a plurality of magnetic balls are enclosed. The magnetic strength of the magnetic balls can be adjusted by a control system within a range of 0.1-0.5T. The interior of the second capsule is enclosed in a rubber solution. This rubber solution is a non-Newtonian fluid with no significant performance changes within a temperature range of 30°C to 100°C.
[0011] A further technical solution is that an extrusion drive assembly is installed inside the first cavity, and the extrusion drive assembly includes a fixed arc piece and an arc baffle. The fixed arc piece is fixedly connected to the first cavity, and a threaded rod is rotatably provided on its outer side. The arc baffle rotates on the threaded rod, and the connection between the threaded rod and the arc baffle adopts a high-precision ball bearing with a radial runout of no more than 0.01mm. The other end of the threaded rod is fixedly connected to a first connecting key, and a second connecting key is connected to the first connecting key. A cross shaft is rotatably provided between the first and second connecting keys. A connecting shaft is fixedly connected to the outer side of the second connecting key, and a fourth bevel gear is fixedly connected to the outer end of the connecting shaft.
[0012] A further technical solution is that the upper opening of the circular table is provided with a table panel. Part of the panel is a flexible plate, while the other part is a rigid plate. The flexible plate is positioned between the fixed curved piece and the curved baffle. Several spike balls are positioned between the fixed curved piece and the curved baffle, and a spring is fixedly mounted between them. The spring is located on both sides of the curved baffle and the fixed curved piece, and has a spring constant of 50-200 N / mm. The spike balls are spherical and can be squeezed and deformed. The spring is installed inside the sphere, and several rubber bumps are provided on the surface of the sphere.
[0013] According to a further technical solution, the upper array of the bracket is provided with four groups of outer auxiliary support devices, the outer auxiliary support devices are in contact with the bottom wall of the truncated table, and the bottom of the bracket can be padded with a metal gasket of suitable thickness for leveling.
[0014] A further technical solution is that a horizontal plate is provided in the middle of the bracket, and a driving motor is fixedly connected to the bottom of the horizontal plate. The output end of the driving motor is fixedly connected to a frequency-modulated gearbox, and the speed regulation range of the frequency-modulated gearbox is 0-300r / min, and the speed regulation accuracy is ±1r / min. The middle end of the output is fixedly connected to the bottom of the placing table.
[0015] Compared with the prior art, the present invention has the following beneficial effects: One of the innovative features of the integrated rotating platform for industrial equipment of the present invention lies in the coordinated fixing mechanism of physical extrusion and air pressure adsorption. Through the centrosymmetrical deformation design of the flexible bending plate, combined with the extrudable spike ball with rubber bumps on the surface, an adaptive fitting structure is formed, and no matter whether the workpiece has a regular flat bottom or a bottom wall with a slight arc, it can be wrapped without dead angles. The combination of the built-in spring of the spike ball and the rubber bumps on the surface increases the friction coefficient. At the same time, the vacuum suction cup adopts nitrile rubber material to ensure the fit through the folding telescopic part, and the vacuum formed under the action of the air pump generates a strong adsorption force. The dual fixing mechanisms work together, and compared with the single fixing method, the anti-displacement ability is improved, which effectively prevents the workpiece from being offset due to external force impact before mechanical linkage. The second innovation of the present invention is to build a highly efficient and coherent mechanical linkage system of "extrusion-transmission-clamping". With the mechanical displacement generated by the first layer of fixation as the trigger signal, the arc-shaped baffle drives the threaded rod to rotate, and the horizontal displacement is converted into the rotational motion of the vertical vertical axis through the vertical engagement of the fourth bevel gear and the first bevel gear. During the transmission process, the radial runout of the rotating bearing is coordinated to ensure the error in power transmission. The vertical vertical axis drives the horizontal axis to rotate through the second and third bevel gears, and the telescopic moving parts on the horizontal axis approach the workpiece at a uniform speed of 10-20mm / s. The clamping arm response time of the mechanical locking assembly is shortened to within 0.5 seconds. This coherent mechanism eliminates the action delays of each link in traditional equipment, and the overall cycle from extrusion to clamping completion is shorter than that of similar equipment. At the same time, the precise adjustment of the clamping force is achieved through the limiting threaded rod, taking into account both fixation stability and workpiece protection.
[0016] The third innovation of this invention lies in the triple dynamic reinforcement design of "mechanical locking + magnetic absorption and contraction + fluid hardening." The mechanical locking component achieves an embracing clamping through the diamond-shaped anti-slip grooves of the symmetrical clamping arms, and cooperates with the double-layer capsule structure of the flexible clamping component to form a primary reinforcement; the magnetic ball generates adjustable magnetism when triggered by the pressure sensor, causing the first capsule to contract to form a ring-shaped adsorption, achieving a secondary reinforcement; the non-Newtonian fluid rubber solution in the second capsule hardens exponentially as the rotation speed increases, and cooperates with the magnetic effect to form a tertiary reinforcement. At the same time, it enables the equipment to adapt to diverse working conditions, significantly improving processing quality and test data reliability. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0018] The present invention will be further described below with reference to the accompanying drawings and examples.
[0019] Figure 1 This is a schematic diagram of the overall appearance structure of the present invention; Figure 2 It is a schematic diagram of the overall side structure of the present invention; Figure 3 It is a schematic diagram of the overall top view of the structure of the present invention; Figure 4 It is a schematic diagram of the overall side sectional structure of the present invention; Figure 5 It is a schematic diagram of the partial appearance structure of the present invention; Figure 6 It is a partial bottom view structural diagram of the present invention; Figure 7 For the present invention Figure 6 A in the figure shows the enlarged structural diagram; Figure 8 A schematic diagram of the partial appearance of the present invention; Figure 9 For the present invention Figure 8 A schematic diagram of the structure at B in the figure is enlarged; Figure 10 A schematic diagram of the overall top view of the present invention; Figure 11 For the present invention Figure 10 The enlarged structural diagram at C in FIG. Figure 12 It is a schematic cross-sectional structural diagram of the flexible clamping assembly 39 in the present invention.
[0020] Description of reference numerals: Bracket 11, rotating support component 12, workpiece 13, drive motor 14, frequency modulation gearbox 15, vacuum adsorption component 16, placing round table 17, table panel 18, separation ring 19, clamping arm gripper device 21, middle isolation ring 22, outer auxiliary support device 24, vertical shaft 25, first bevel gear 26, second bevel gear 27, horizontal shaft 28, third bevel gear 29, fixed limiter 30, telescopic moving part 31, mechanical locking component 32, Fixed central axis 33, air collecting box 34, threaded rod 35, arc-shaped baffle 36, fixed arc-shaped piece 37, extension guide rod 38, flexible clamping assembly 39, sliding block 40, first clamping arm 41, second clamping arm 42, ejector pin contact assembly 43, vacuum suction cup 44, first capsule 45, second capsule 46, magnetic ball 47, rubber solution 48, folding telescopic part 49, cylinder interface 50, middle ring block 51, second connecting key 52, first connecting key 53. DETAILED DESCRIPTION
[0021] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.
[0022] In the description of the present invention, unless otherwise specified, "plurality" means two or more; terms such as "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," and "tail" indicate positions or relationships based on those shown in the accompanying drawings. These terms are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present invention. Furthermore, terms such as "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0023] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.
[0024] As attached Figure 1 To the attached Figure 12 As shown: The present invention provides a comprehensive rotating platform for industrial equipment, comprising a bracket 11, a rotating support component 12 fixedly mounted above the bracket 11, a workpiece 13 placed on the surface of the rotating support component 12, and an extrusion locking device and a clamping arm gripping device 21 provided inside the rotating support component 12; The extrusion and locking device comprises a flexible bending plate and spike balls. The flexible bending plate is made of imported highly elastic polyurethane. When subjected to the downward force of the workpiece 13, the flexible bending plate deforms with a centrally symmetrical distribution. This deformation prevents excessive localized pressure on the workpiece base, effectively protecting the surface accuracy of the base. The deformed flexible bending plate squeezes the spike balls, which are spherical and can be squeezed and deformed. The spheres are equipped with springs and have several rubber bumps on their surfaces. The multiple spike balls create friction against the base of the workpiece 13, thereby enhancing the stability of the workpiece 13. The clamp arm gripping device 21 includes a mechanical transmission component and a mechanical locking component 32 . The mechanical transmission component pushes the mechanical locking component 32 to clamp the bottom foot of the workpiece 13 through the extrusion displacement of the spike ball.
[0025] Preferably, refer to the attached Figure 3 The rotating support component 12 includes a placement table 17. The placement table 17 has a bottom at the bottom and an opening at the top. The surface is also provided with a center scale line to assist in positioning the workpiece 13 and facilitate the operator to align the center of gravity of the workpiece with the center of the placement table 17. A separator ring 19 is provided inside the placement table 17. A middle isolation ring 22 is provided inside the separator ring 19. The separator ring 19 divides the interior of the placement table 17 into two cavities. The first cavity is close to the side of the middle isolation ring 22 and is provided between the middle isolation ring 22 and the separator ring 19. The second cavity is provided between the separator ring 19 and the inner wall of the placement table 17. The first cavity is installed with an extrusion drive assembly, and the second cavity is provided with a mechanical transmission assembly.
[0026] Preferably, refer to the attached Figure 3 and attached Figure 4A vacuum adsorption assembly 16 is fixedly mounted on the inner side of the central isolation ring 22. The vacuum adsorption assembly 16 includes an air collecting box 34. Multiple sets of fixed central shafts 33 are fixedly mounted above the air collecting box 34. A foldable and telescopic portion 49 is provided at the upper end of the fixed central shaft 33. A vacuum suction cup 44 is fixedly connected to the end of the foldable and telescopic portion 49. The vacuum suction cup 44 is made of wear-resistant, highly sealable nitrile rubber. Its surface has been specially textured to adapt to workpiece bottom walls of various shapes, such as flat and slightly curved surfaces, achieving a degree of adhesion of over 95% to the workpiece surface. A cylinder interface 50 is provided below the air collecting box 34 for connection to an external air pump.
[0027] Preferably, refer to the attached Figure 5 and attached Figure 6 The mechanical transmission assembly includes a vertical shaft 25. The vertical shaft 25 is made of 45 steel that has been tempered and has a bending strength of more than 800 MPa. A first bevel gear 26 is fixedly connected to its lower end. A rotary bearing is rotatably provided at the bottom of the first bevel gear 26. The rotary bearing is fixedly connected to the bottom wall of the second cavity, and the radial runout does not exceed 0.01 mm. A second bevel gear 27 is fixedly connected to the upper end of the vertical shaft 25. The second bevel gear 27 is fixed to the vertical shaft 25 by a key connection. The outer side of the second bevel gear 27 is matched with a third bevel gear 29. The tooth shapes of the two are precisely ground and have a high matching degree. The transmission efficiency can reach more than 92%. A horizontal shaft 28 is rotatably provided in the middle of the third bevel gear 29. The horizontal shaft 28 is made of high-strength alloy material with a yield strength of more than 1000 MPa and a maximum torque of 500 N·m. A fixed limiting part 30 and a telescopic movable part 31 are rotatably provided on its surface. A limiting threaded rod is threadedly provided between the fixed limiting part 30 and the telescopic movable part 31. An auxiliary clamping device is fixedly connected to the lower end of the telescopic movable part 31.
[0028] Preferably, refer to the attached Figure 10 and attached Figure 11 The end of the horizontal axis 28 is rotatably mounted on the side wall of the placing table 17, and the other end is rotatably connected to a mechanical locking assembly 32. The mechanical locking assembly 32 includes a sliding block 40, and a middle ring block 51 is slidably provided in the middle of the sliding block 40. High-temperature grease is applied between the sliding block 40 and the middle ring block 51. The operating temperature range of the grease is 20°C to 150°C, and the friction coefficient can be reduced to below 0.05. One end of the middle ring block 51 is fixedly connected to the horizontal axis 28, and the other end is provided with a pin contact assembly 43. The contact end of the pin contact assembly 43 is made of silicone material. The outer side of the sliding block 40 is hinged with a first clamping arm 41 and a second clamping arm 42. The first clamping arm 41 and the second clamping arm 42 are symmetrically arranged, and the clamping surface is provided with a diamond-shaped anti-slip pattern with a depth of 0.5mm.
[0029] Preferably, refer to the attached Figure 11 and attached Figure 12 The auxiliary clamping device includes an extension guide rod 38, the end of which is fixedly connected to a flexible clamping assembly 39. The flexible clamping assembly 39 includes a first capsule 45 and a second capsule 46. A plurality of magnetic balls 47 are wrapped between the first capsule 45 and the second capsule 46. The magnetic strength of the magnetic balls 47 can be adjusted by a control system within a range of 0.1-0.5T. The inner side of the second capsule 46 is wrapped with a rubber solution 48. The rubber solution 48 is a non-Newtonian fluid, and its performance does not change significantly within the temperature range of 30°C to 100°C.
[0030] Preferably, refer to the attached Figure 7 To the attached Figure 9 An extrusion drive assembly is installed inside the first cavity, and the extrusion drive assembly includes a fixed arc piece 37 and an arc-shaped baffle 36. The fixed arc piece 37 is fixedly connected to the first cavity, and a threaded rod 35 is rotatably provided on its outer side. The arc-shaped baffle 36 rotates on the threaded rod 35, and the connection between the threaded rod 35 and the arc-shaped baffle 36 adopts a high-precision ball bearing, and the radial runout of the bearing does not exceed 0.01mm. The other end of the threaded rod 35 is fixedly connected to a first connecting key 53, and a second connecting key 52 is connected to the first connecting key 53. A cross shaft is rotatably provided between the first connecting key 53 and the second connecting key 52. A connecting shaft is fixedly connected to the outer side of the second connecting key 52, and a fourth bevel gear is fixedly connected to the outer end of the connecting shaft.
[0031] Preferably, refer to the attached Figure 7 To the attached Figure 9 The upper opening of the circular platform 17 is provided with a platform panel 18. This panel 18 is partially flexible and partially rigid. The flexible panel is positioned between the fixed curved piece 37 and the curved baffle 36. Several spike balls are positioned between the fixed curved piece 37 and the curved baffle 36, with springs fixedly mounted between them. The springs are located on both sides of the curved baffle 36 and the fixed curved piece 37, and have a spring constant of 50-200 N / mm. The spike balls are spherical and can be squeezed and deformed. The springs are internally mounted, and the surface of the balls is provided with several rubber bumps.
[0032] Preferably, refer to the attached Figure 4 To the attached Figure 5 The upper array of the bracket 11 is provided with four groups of outer auxiliary support devices 24, and the outer auxiliary support devices 24 are in contact with the bottom wall of the truncated table 17, and the bottom of the bracket 11 can be padded with a metal gasket of suitable thickness for leveling.
[0033] Preferably, refer to the attached Figure 4 To the attached Figure 5 A horizontal plate is provided in the middle of the bracket 11, and a driving motor 14 is fixedly connected to the bottom of the horizontal plate. The output end of the driving motor 14 is fixedly connected to a frequency-modulated gearbox 15. The speed regulation range of the frequency-modulated gearbox 15 is 0-300r / min, and the speed regulation accuracy is ±1r / min. The middle end of the output is fixedly connected to the bottom of the placing table 17.
[0034] Specific use of the present invention: When using this equipment, first use a forklift or lifting equipment to smoothly transport the device to the workpiece operation workshop. Avoid violent bumps during transportation to prevent the precision components inside the equipment from being displaced or damaged due to vibration. After arriving at the designated location, ensure that the ground of the placement area is flat. You can use a spirit level to calibrate it. If there is a slight tilt on the ground, you can insert a metal gasket of appropriate thickness at the bottom of the bracket 11 for leveling to ensure the stability of the equipment during operation and avoid centrifugal force deviation during the rotation of the workpiece due to the tilt of the equipment. Then connect the cylinder interface 50 to the external air pump to form a connection. When connecting, you need to use a matching high-pressure air pipe. The pressure rating of the air pipe should not be less than 1.5 times the working pressure of the equipment. During the connection process, the sealing of the interface needs to be carefully checked. You can ensure that there is no gas leakage at the interface by applying high-temperature resistant sealant or installing corrosion-resistant sealing gaskets. Because even a small leak will significantly affect the adsorption force of the vacuum suction cup 44, and thus affect the stability of the entire fixing process.
[0035] The test workpiece is then slowly placed on the placement table 17. Two operators are required to coordinate during the placement process: one is responsible for stabilizing the workpiece's posture, while the other observes the relative position of the workpiece and the placement table 17. Careful attention should be paid to the placement of the workpiece during placement, ensuring that the center of gravity of the workpiece is aligned with the center of the placement table 17. This can be determined by observing the center scale line on the surface of the placement table 17. If the center of gravity of the workpiece deviates by more than 5 cm, the position must be readjusted to avoid uneven force on the clamping components during subsequent fixation due to the center of gravity offset, which could affect the fixation effect.
[0036] When a test workpiece is placed on the truncated table 17, gravity forces the workpiece's base to precisely fall into the flexible bend plate area on the tabletop 18. Made from imported, highly elastic polyurethane, the flexible bend plate sinks evenly under the weight of the workpiece placed on the truncated table 17. During this process, the plate's deformation is centrally symmetrical, preventing excessive localized pressure on the workpiece's base and effectively protecting the surface accuracy of the base.
[0037] When the workpiece rests completely still and immobile on table 17, i.e., once in place, the multiple sets of vacuum cups 44 within vacuum assembly 16, adaptively adjusted by foldable and retractable sections 49, establish close contact with the workpiece's bottom surface. These cups are made of wear-resistant, highly leak-tight nitrile rubber, and their surface features a special texture treatment that allows them to adapt to workpiece bottom surfaces of varying shapes, from flat to slightly curved, ensuring a surface fit exceeding 95%.
[0038] When the external air pump starts adsorption, the control system of the air pump will first perform pre-evacuation. After confirming that the air pipe is unobstructed, it will start deep adsorption of the inside of the vacuum suction cup 44. The adsorption force of the air pump can be precisely adjusted by the pressure regulating valve on its control panel. The adjustment range is 0.04MPa to 0.08MPa. The operator can select the appropriate adsorption pressure according to the weight and material of the workpiece. For example, for a cast iron workpiece weighing 100kg, the adsorption pressure can be set to 0.06MPa. Subsequently, the inside of the vacuum suction cup 44 gradually forms an evacuated state, and the evacuation degree can reach more than 98%. At this time, the vacuum suction cup 44 begins to perform preliminary fixed adsorption on the workpiece. This preliminary adsorption can withstand a horizontal external force impact of not less than 500N, effectively preventing the workpiece from displacement during the subsequent mechanical linkage process.
[0039] After adsorption, the workpiece sinks again under the combined effects of vacuum suction and its own weight. The extent of this sinking can be precisely controlled by the vacuum force, typically within a range of 5-15mm. This sinking forces the flexible plate further downward, causing its deformation to reach 30%-50% of its initial state. This further enhances the squeezing effect on the spiked ball between the arc-shaped baffle 36 and the fixed arc-shaped plate 37, paving the way for subsequent mechanical locking.
[0040] As the flexible curved plate sinks, its lower surface evenly squeezes the spike ball between the curved baffle 36 and the fixed curved piece 37. This compression causes the rubber bumps on the spike ball to elastically deform, tightly fitting against the inner walls of the curved baffle 36 and the fixed curved piece 37, increasing friction by over 30%. Simultaneously, the spring inside the spike ball is compressed, generating an outward expansion force that pushes the curved baffle 36 outward at a speed of approximately 2-5 mm / s. The entire movement is smooth and seamless, without any lags.
[0041] When the threaded rod 35 rotates, the gear structure at the other end thereof drives the second connecting key 52 and the first connecting key 53 to rotate synchronously.
[0042] The fourth helical gear on the connecting shaft outside the second connecting key 52 then precisely meshes with the first helical gear 26. The meshing clearance between the gears is controlled within a range of 0.02-0.05mm, resulting in high meshing accuracy and a transmission efficiency exceeding 95%. The first helical gear 26 then rotates the vertical shaft 25, which is made of tempered 45-grade steel with a bending strength exceeding 800 MPa. This rotation of the vertical shaft 25 drives the second helical gear 27, which is secured to the vertical shaft 25 via a keyed connection. This strong connection prevents loosening or slipping during rotation.
[0043] The second helical gear 27 then mates closely with the third helical gear 29. The precision-ground tooth profiles of both ensure a high degree of matching, minimizing energy loss during transmission and achieving a transmission efficiency exceeding 92%. Driven by these gears, the horizontal shaft 28 begins to rotate. Made from a high-strength alloy with a yield strength exceeding 1000 MPa, the horizontal shaft 28 can withstand high torques, reaching a maximum torque of 500 N·m.
[0044] When the horizontal shaft 28 rotates, the telescopic moving part 31 provided on the horizontal shaft 28 will move toward the vacuum suction cup 44 under the action of the threaded transmission, and the moving speed is uniform, about 10-20mm / s. The moving distance can be accurately controlled by the limiting threaded rod between the fixed limiting part 30 and the telescopic moving part 31, and the positioning accuracy can reach ±0.1mm, ensuring that the mechanical locking component 32 can accurately reach the clamping position.
[0045] Then, the ejector pin contact assembly 43 provided in the mechanical locking assembly 32 will first contact the bottom foot of the workpiece. The contact end of the ejector pin contact assembly 43 is made of silicone material, which has good elastic buffering performance. The impact force during contact can be reduced by more than 60%, which can effectively avoid damage to the bottom foot of the workpiece. It is especially suitable for aluminum alloy or copper workpieces with high surface accuracy requirements.
[0046] After contact, the thrust transmitted by the ejector contact assembly 43 causes the sliding block 40 to slide on the surface of the central ring block 51. High-temperature grease, with an operating temperature range of 20°C to 150°C, is applied between the sliding block 40 and the central ring block 51, significantly reducing sliding friction to below 0.05. This forces the first and second clamping arms 41 and 42 to move closer together. The clamping surfaces of the first and second clamping arms 41 and 42 are equipped with diamond-shaped anti-slip grooves with a depth of 0.5 mm, which increase friction by over 40%. When the first clamping arm 41 and the second clamping arm 42 are close to each other, a firm clamping of the base of the test workpiece will be achieved. The clamping force can be adjusted by adjusting the limit threaded rod within a range of 100-1000N. The appropriate clamping force can be selected according to the material and shape of the workpiece. For example, for plastic workpieces, the clamping force can be set to 100-300N, and for metal workpieces, it can be set to 500-1000N.
[0047] When the foot is then completely placed between the curved baffle 36 and the fixed curved piece 37, the spike ball, under the action of the spring's rebound force, will tightly wrap around the flexible curved plate. The wrapping range can cover more than 90% of the foot's surface area, completely covering the foot. During wrapping, the rubber bumps on the surface of the spike ball will embed into the tiny gaps in the workpiece foot, further enhancing the fixing effect. After wrapping, the curved baffle 36 will form a pulling force with the fixed curved piece 37. During the pulling, the spring installed between the curved baffle 36 and the fixed curved piece 37 generates a uniform pulling force. The spring's elastic coefficient has been precisely calculated to be 50-200N / mm, which can provide an appropriate pulling force, so that the spike ball's wrapping and squeezing force on the foot reaches 200-800N, further enhancing the fixing effect.
[0048] When the mechanical locking assembly 32 is clamping, the rotation of the transverse shaft 28 drives the telescopic movable member 31 to move synchronously, with a synchronization error of no more than 0.5 mm, thereby pushing the flexible clamping assembly 39 to re-enwrap the workpiece base. The force of the wrapping can be adjusted by the travel distance of the telescopic movable member 31, ensuring the appropriate force to ensure a secure fixation effect without causing compression and deformation of the workpiece base.
[0049] After the first capsule 45 wraps around the workpiece foot, the magnetic ball 47 located between the first capsule 45 and the second capsule 46 will gradually approach the vacuum cup 44 through the suction force of the vacuum cup 44 and contact the pressure sensor inside the vacuum cup 44. This pressure sensor has an accuracy of ±0.1kPa and high sensitivity, which can accurately sense pressure changes. When the pressure reaches the set threshold, typically 0.05MPa, it will trigger the magnetization of the magnetic ball 47, making it magnetic. The magnetic strength can be adjusted by the control system within the adjustment range of 0.1-0.5T. After magnetization, the first capsule 45 will shrink tightly, forming a ring-shaped adsorption package with good sealing performance and an air leakage rate of less than 0.1L / min. The foot will be re-adsorbed, further improving the reliability of the fixation.
[0050] The rubber solution 48 enclosed within the second bladder 46 is a non-Newtonian fluid whose viscosity coefficient varies significantly with shear rate. Its physical properties are stable, with no significant performance changes within the temperature range of 30°C to 100°C. When the drive motor 14 is operating, its output speed is adjustable via the frequency-modulated gearbox 15 located above it. The frequency-modulated gearbox 15 has a speed adjustment range of 0-300 rpm, enabling precise adjustment of the rotation speed of the mounting platform 17 with an accuracy of ±1 rpm.
[0051] As the platform 17 rotates, the shear force generated by the rotation increases the viscosity of the rubber solution 48, gradually hardening it. The speed and degree of hardening are positively correlated with the rotational speed. For example, at a rotational speed of 100 r / min, the hardness of the rubber solution 48 can reach 80 Shore A; at a rotational speed of 300 r / min, the hardness can reach 95 Shore A. After hardening, the magnetic attraction of the magnetic balls 47 reinforces the clamping of the base. The reinforced clamping system can withstand centrifugal forces of more than five times the weight of the workpiece. This significant reinforcement ensures the stability of the workpiece even at high rotational speeds, meeting the requirements of high-precision machining or testing.
[0052] The embodiments of the present invention are presented for purposes of illustration and description and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are chosen and described in order to better illustrate the principles of the invention and its practical application and to enable those skilled in the art to understand the invention and design various embodiments with various modifications as suited for specific applications.
Claims
1. An integrated rotating platform for industrial equipment, comprising a bracket (11), a rotating support component (12) fixedly mounted above the bracket (11), a workpiece (13) placed on the surface of the rotating support component (12), characterized in that: The rotating support component (12) is provided with a squeeze locking device and a clamping arm gripping device (21) inside; The extrusion locking device comprises a flexible bending plate and spike balls. The workpiece (13) is deformed when pressed downward by gravity, and the deformation is centrally symmetrical. After deformation, the spike balls are squeezed, and the plurality of spike balls form friction on the bottom of the workpiece (13), thereby enhancing the stability of the workpiece (13). The clamp arm gripper device (21) comprises a mechanical transmission component and a mechanical locking component (32), wherein the mechanical transmission component pushes the mechanical locking component (32) to clamp the foot of the workpiece (13) through the extrusion displacement of the spike ball.
2. The integrated rotating platform for industrial equipment according to claim 1, characterized in that: The rotating support component (12) includes a placing table (17), the placing table (17) is provided with a bottom at the bottom, an opening at the top, and a separator ring (19) inside. The inner side of the separator ring (19) is provided with a middle isolation ring (22). The separator ring (19) divides the interior of the placing table (17) into two cavities. The first cavity is close to the side of the middle isolation ring (22) and is arranged between the middle isolation ring (22) and the separator ring (19). The second cavity is arranged between the separator ring (19) and the inner wall of the placing table (17). An extrusion drive component is installed in the first cavity, and a mechanical transmission component is provided in the second cavity. A center scale line is provided on the surface of the placing table (17) to assist in positioning the workpiece (13).
3. The integrated rotating platform for industrial equipment according to claim 2, characterized in that: A vacuum adsorption assembly (16) is fixedly installed on the inner side of the middle isolation ring (22), and the vacuum adsorption assembly (16) includes an air collecting box (34). A plurality of fixed central shafts (33) are fixedly installed above the air collecting box (34). A folding telescopic portion (49) is provided at the upper end of the fixed central shaft (33). A vacuum suction cup (44) is fixedly connected to the end of the folding telescopic portion (49). A cylinder interface (50) is provided below the air collecting box (34) for connecting to an external air pump.
4. The integrated rotating platform for industrial equipment according to claim 3, characterized in that: The mechanical transmission assembly comprises a vertical shaft (25), the lower end of the vertical shaft (25) is fixedly connected with a first bevel gear (26), the bottom of the first bevel gear (26) is rotatably provided with a rotary bearing, the rotary bearing is fixedly connected to the bottom wall of the second cavity, the upper end of the vertical shaft (25) is fixedly connected with a second bevel gear (27), the second bevel gear (27) and the vertical shaft (25) are fixed by a key connection; the outer side of the second bevel gear (27) is matched with a third bevel gear (29), the middle part of the third bevel gear (29) is rotatably provided with a horizontal shaft (28), the surface of the horizontal shaft (28) is rotatably provided with a fixed limiter (30) and a telescopic movable member (31), the fixed limiter (30) and the telescopic movable member (31) are threadedly matched with a limit threaded rod, and the lower end of the telescopic movable member (31) is fixedly connected with an auxiliary clamping device.
5. The integrated rotating platform for industrial equipment according to claim 4, characterized in that: The end of the transverse axis (28) is rotatably mounted on the side wall of the placing table (17), and the other end is rotatably connected to a mechanical locking assembly (32). The mechanical locking assembly (32) includes a sliding block (40), and a middle ring block (51) is slidably provided in the middle of the sliding block (40). High-temperature grease is applied between the sliding block (40) and the middle ring block (51). One end of the middle ring block (51) is fixedly connected to the transverse axis (28), and the other end is provided with a pin contact assembly (43). The outer side of the sliding block (40) is hinged with a first clamping arm (41) and a second clamping arm (42). The first clamping arm (41) and the second clamping arm (42) are symmetrically arranged, and the clamping surface is provided with diamond-shaped anti-slip patterns.
6. The integrated rotating platform for industrial equipment according to claim 5, characterized in that: The auxiliary clamping device includes an extension guide rod (38), the end of the extension guide rod (38) is fixedly connected to a flexible clamping assembly (39), the flexible clamping assembly (39) includes a first capsule (45) and a second capsule (46), a plurality of magnetic balls (47) are wrapped between the first capsule (45) and the second capsule (46), the magnetic strength of the magnetic balls (47) can be adjusted by a control system, and the inner side of the second capsule (46) is wrapped with a rubber solution (48), and the rubber solution (48) is a non-Newtonian fluid.
7. The integrated rotating platform for industrial equipment according to claim 6, characterized in that: An extrusion drive assembly is installed inside the first cavity, and the extrusion drive assembly includes a fixed arc piece (37) and an arc baffle (36). The fixed arc piece (37) is fixedly connected to the first cavity. A threaded rod (35) is rotatably provided on the outer side of the fixed arc piece (37). The arc baffle (36) rotates on the threaded rod (35). A high-precision ball bearing is used for the connection between the threaded rod (35) and the arc baffle (36). The other end of the threaded rod (35) is fixedly connected with a first connecting key (53). A second connecting key (52) is connected to the first connecting key (53). A cross shaft is rotatably provided between the first connecting key (53) and the second connecting key (52). A connecting shaft is fixedly connected to the outer side of the second connecting key (52). The outer end of the connecting shaft is fixedly connected with a fourth bevel gear.
8. The integrated rotating platform for industrial equipment according to claim 7, characterized in that: A table panel (18) is provided at the upper opening of the placing round table (17), wherein a portion of the table panel (18) is a flexible curved plate and another portion is a hard plate. The flexible curved plate is provided between the fixed arc piece (37) and the arc-shaped blocking piece (36). A plurality of spike balls are provided between the fixed arc piece (37) and the arc-shaped blocking piece (36), and a spring is fixedly installed between the two. The spring is provided on both sides of the arc-shaped blocking piece (36) and the fixed arc piece (37).
9. The integrated rotating platform for industrial equipment according to claim 1, characterized in that: The upper array of the bracket (11) is provided with four groups of outer auxiliary support devices (24), and the outer auxiliary support devices (24) are in contact with the bottom wall of the truncated table (17). The bottom of the bracket (11) can be padded with a metal gasket of suitable thickness for leveling.
10. The integrated rotating platform for industrial equipment according to claim 9, characterized in that: A horizontal plate is provided in the middle of the bracket (11), a driving motor (14) is fixedly connected to the lower portion of the horizontal plate, an output end of the driving motor (14) is fixedly connected to a frequency modulation gearbox (15), and an output middle end of the frequency modulation gearbox (15) is fixedly connected to the bottom of the placing truncated table (17).
Citation Information
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CN121164295A