Rotary bearing device

Abstract

The application provides a rotating bearing device, comprising: a bearing platform; a main body structure comprising a driving body and a rotating mechanism, the rotating mechanism being rotatably arranged on the driving body, the rotating mechanism being fixedly connected with the bearing platform; a blocking structure being fixed with the bearing platform; and an adsorption structure being fixed with the driving body, the adsorption structure being used for adsorbing the blocking structure. In the application, the adsorption structure and the blocking structure work cooperatively to form an active in-place locking system. After the buffer structure completes the main kinetic energy conversion, or at the moment when the buffer structure releases the elastic potential energy of the reset spring, the adsorption force is used to firmly keep the blocking structure at the theoretical in-place position, so that the rebound is completely eliminated, the positioning accuracy and the operation stability are improved. Moreover, the device can be self-adaptive to rotating bearing devices with different platform qualities and different motion speeds, and the versatility and the robustness of the equipment are enhanced.

Description

Technical Field

[0001] This application relates to the field of industrial equipment technology, and in particular to a rotating bearing device. Background Technology

[0002] In current automated production lines, many logistics platforms need to rotate products to facilitate material loading and unloading, and flip products to allow for subsequent processes. In such cases, pneumatic swing tables (rotary cylinders) are widely used. However, when current pneumatic swing tables approach their swing limit angle, the position of the hydraulic damper is adjusted using the damping adjustment screw shown in the diagram to neutralize the kinetic energy generated during rotation and ensure smooth positioning upon reaching the desired position.

[0003] However, in actual use, changes in quality due to product and platform replacements, as well as the compression and rebound of the buffer springs, often make it difficult to precisely neutralize the kinetic energy during rotation. This causes the platform carrying the product to bounce and jolt after reaching the target position. Furthermore, the back-and-forth action of the driving air pressure and buffer springs may cause it to bounce back and forth until the kinetic energy is completely converted, similar to a sine wave attenuation. The rebound after the cylinder reaches its position may cause the product to shift after reaching its destination, and in flipping operations, it may even cause the product to fall. This increases instability and quality risks in production. Summary of the Invention

[0004] To address the aforementioned problems, this application provides a rotating bearing device.

[0005] This application provides a rotating bearing device, comprising: Platform; The main structure includes a drive body and a rotating mechanism, wherein the rotating mechanism is rotatably mounted on the drive body and is fixedly connected to the support platform; A blocking structure is fixed to the supporting platform; An adsorption structure is fixed to the driving body, and the adsorption structure is used to adsorb the blocking structure.

[0006] Furthermore, in the aforementioned rotating bearing device, the main structure further includes: A support body includes a support surface, the support body is fixedly connected to the drive body, and the support surface intersects the rotation direction of the rotating mechanism; The adsorption structure is disposed on the support surface.

[0007] Furthermore, the rotating bearing device further includes a buffer structure disposed on the support surface; Preferably, the distance by which the buffer structure protrudes from the support surface is greater than the distance by which the adsorption structure protrudes from the support surface.

[0008] Furthermore, in the aforementioned rotating bearing device, the blocking structure includes a first blocking block and a second blocking block; The line connecting the center of the first blocking block and the center of the rotating mechanism forms a predetermined angle with the line connecting the center of the second blocking block and the center of the rotating mechanism.

[0009] Furthermore, in the aforementioned rotating bearing device, the adsorption structure includes a suction cup, which is mounted on the support surface. An adsorption connector is provided on the side of the support body away from the support surface, and the adsorption connector is connected to the suction cup.

[0010] Furthermore, in the aforementioned rotating bearing device, the adsorption structure includes an electromagnetic suction head, which is mounted on the support surface, and the blocking structure is configured as a ferromagnetic material.

[0011] Furthermore, in the aforementioned rotating bearing device, an adsorption structure is respectively provided at both ends along the length direction of the support body, and the two adsorption structures are located on the same side of the support body.

[0012] Furthermore, in the aforementioned rotating bearing device, the buffer structure includes a hydraulic buffer, and the side of the hydraulic buffer opposite to the support surface includes a protrusion, the protrusion including an arc-shaped surface.

[0013] Furthermore, in the aforementioned rotating bearing device, the bearing platform includes a first mounting hole and a second mounting hole. The first mounting hole is used to fix the rotating mechanism, and the second mounting hole is disposed around the first mounting hole.

[0014] Furthermore, in the aforementioned rotating bearing device, the driving body includes a cylinder, the rotating mechanism is configured to rotate under the pneumatic power of the cylinder, and an angle sensor is provided on the rotating mechanism to obtain the rotation angle of the rotating mechanism relative to the cylinder.

[0015] The beneficial effects of this application are as follows: In this application, the adsorption structure and the blocking structure work together to form an active positioning and locking system. After the buffer structure completes its main kinetic energy conversion, or at the moment the buffer structure's return spring releases its elastic potential energy, the adsorption force firmly holds the blocking structure in its theoretically positioned position, thereby completely eliminating rebound and improving positioning accuracy and operational stability. Furthermore, this device can adapt to rotating bearing devices with different platform masses and different movement speeds, enhancing the equipment's versatility and robustness. Attached Figure Description

[0016] Figure 1This is one of the three-dimensional structural schematic diagrams of the rotating bearing device in the embodiments of this application; Figure 2 This is a three-dimensional structural diagram of the main structure and other components of the rotating bearing device in the embodiments of this application; Figure 3 This is one of the top views of the rotating bearing device in the embodiments of this application; Figure 4 This is a second top view of the rotating bearing device in the embodiments of this application; Figure 5 This is the third top view of the rotating bearing device in the embodiments of this application; Figure 6 This is the second three-dimensional structural schematic diagram of the rotating bearing device in the embodiments of this application. Detailed Implementation

[0017] To enable those skilled in the art to better understand the technical solutions in the embodiments of this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art should fall within the protection scope of the embodiments of this application.

[0018] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The singular forms “a,” “the,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used in the embodiments of this application refers to and includes any or all possible combinations of one or more associated listed items.

[0019] It should be understood that in the description of the embodiments of this application, the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the scheme of the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0020] Furthermore, when an element or layer is referred to as being "on" another element or layer, "connected to," or "bonded to" another element or layer, the element or layer may be directly on the other element or layer, directly connected to, or directly bonded to the other element or layer, or there may be intermediate elements or layers. However, when an element or layer is referred to as being "directly on" another element or layer, "directly connected to," or "directly bonded to" another element or layer, there are no intermediate elements or layers.

[0021] The terms First, Second, etc., are used to describe various elements, components, regions, layers, and / or parts, but these elements, components, regions, layers, and / or parts should not be limited by these terms. These terms are used to distinguish one element, component, region, layer, and / or part from another element, component, region, layer, and / or part.

[0022] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0023] However, through long-term production practice and research, the inventors discovered that existing pneumatic rotary tables have a series of unavoidable technical defects in actual use. These defects are particularly prominent in scenarios involving long-term equipment operation, frequent product model changes, and adjustments to process parameters.

[0024] Specifically, existing pneumatic swing stages generally employ a single buffer structure, such as a hydraulic buffer at the end of the rotational stroke. The buffer works as follows: when the rotating mechanism moves the stage to its final position, it impacts the piston rod of the buffer. The hydraulic oil inside the buffer generates damping through a throttling orifice, thereby absorbing and converting some of the kinetic energy generated by the rotational motion. Simultaneously, a helical spring is also installed inside the buffer to reset its piston rod. During the impact, this reset spring is also compressed, thus storing a certain amount of elastic potential energy.

[0025] In summary, existing single-buffered pneumatic swing tables generally suffer from rebound and jitter after reaching their designated positions when dealing with conditions such as product changes (quality alterations), speed adjustments (kinetic energy changes), and prolonged operation (spring performance decay). This problem directly leads to product misalignment, dropping, and decreased positioning accuracy, resulting in production cycle interruptions, increased product scrap rates, and reduced overall equipment efficiency. Therefore, effectively solving the rebound and jitter problem after the pneumatic swing table reaches its designated position has become a pressing technical challenge for those skilled in the art.

[0026] Reference Figures 1 to 6 As shown, this application provides a rotating bearing device, aiming to solve the technical problems of rebound, shaking, and product offset and drop caused by the single-buffer structure in the existing pneumatic rotating swing table. Another objective of this application is to provide a rotating bearing device that can actively absorb and lock the residual kinetic energy after the rotating mechanism 202 is in position, thereby improving positioning accuracy and operational stability. The rotating bearing device includes: a bearing platform 100, a main structure, a blocking structure 203, and an adsorption structure 210. The main structure includes a drive body 201 and a rotating mechanism 202, which is rotatably mounted on the drive body 201 and fixedly connected to the bearing platform 100; the blocking structure 203 is fixed to the bearing platform 100; the adsorption structure 210 is fixed to the drive body 201 and is used to adsorb the blocking structure 203.

[0027] Specifically, the support platform 100 is used to directly or indirectly support products to be processed or assembled. The upper surface of the support platform 100 can be designed with structures such as vacuum suction holes, positioning pins, or contoured grooves according to the product shape. The suction structure 210 is fixedly connected to the drive body 201 or a main structural part fixed relative to the drive body 201. The suction structure 210 is used to apply a suction force to the blocking structure 203 when the rotating mechanism 202 drives the support platform 100 and the blocking structure 203 to the preset position, thereby actively suppressing the rebound movement of the blocking structure 203. In this application, the suction structure 210 and the blocking structure 203 work together to form an active positioning locking system. After the buffer structure 220 completes the main kinetic energy conversion, or at the moment when the return spring of the buffer structure 220 releases its elastic potential energy, the suction force firmly holds the blocking structure 203 in the theoretical position, thereby completely eliminating rebound and improving positioning accuracy and operational stability. Furthermore, this device can adapt to rotating support devices with different platform masses and different movement speeds, enhancing the versatility and robustness of the equipment.

[0028] Furthermore, as an optional approach, the main structure also includes a support body 204, which includes a support surface 2041. The support body 204 is fixedly connected to the drive body 201, and the support surface 2041 intersects the rotation direction of the rotating mechanism 202. The adsorption structure 210 is disposed on the support surface 2041. The support body 204 includes a support surface 2041 and is fixedly connected to the drive body 201. Preferably, the support surface 2041 is perpendicular to or approximately perpendicular to the tangential movement direction of the rotating mechanism 202, thereby providing a stable mounting reference for the adsorption structure 210. The adsorption structure 210 is disposed on the support surface 2041. By mounting the adsorption structure 210 on an independent support body 204, the adverse effects of the adsorption force on the internal structure of the drive body 201 can be avoided, and the independent installation, debugging, and replacement of the adsorption structure 210 are also facilitated.

[0029] Furthermore, in a preferred embodiment of this application, the rotating bearing device further includes a buffer structure 220. The buffer structure 220 is also disposed on the support surface 2041 and located on the movement trajectory of the blocking structure 203. The buffer structure 220 is used to first contact the blocking structure 203 and absorb most of the kinetic energy in the rotational motion before the blocking structure 203 reaches its final position. Preferably, the buffer structure 220 protrudes from the support surface 2041 by a greater distance than the adsorption structure 210 protrudes from the support surface 2041. In other words, on the approach path of the blocking structure 203, the buffer structure 220 has a higher height or a more forward position, so the blocking structure 203 will first make mechanical contact with the buffer structure 220 to complete the main kinetic energy dissipation, and then contact or approach the adsorption structure 210 to the effective adsorption distance. This sequential design ensures that the adsorption structure 210 will not suffer direct mechanical impact, thereby protecting the integrity and service life of the adsorption structure 210.

[0030] As a preferred embodiment, the buffer structure 220 includes a hydraulic buffer 205. The side of the hydraulic buffer 205 facing away from the support surface 2041 includes a protrusion with an arcuate surface. In this application, the buffer structure 220 preferably uses a hydraulic buffer 205. The main body of the hydraulic buffer 205 is embedded within the support body 204, and its piston rod extends from the support surface 2041. The side of the hydraulic buffer 205 facing away from the support surface 2041 (i.e., the end of the piston rod) includes a protrusion for impacting the blocked structure 203. Preferably, the protrusion has an arcuate surface, such as hemispherical or crown-shaped. The arcuate surface ensures a stable impact point regardless of whether the blocked structure 203 contacts the buffer at a slight angle, avoiding additional lateral forces or jamming. The hydraulic buffer 205 has an internal throttle adjustment mechanism to adjust the damping characteristics according to the actual load.

[0031] In one specific embodiment of this application, the blocking structure 203 includes a first blocking block 2031 and a second blocking block 2032; the line connecting the center of the first blocking block 2031 and the center of the rotating mechanism 202 forms a preset angle with the line connecting the center of the second blocking block 2032 and the center of the rotating mechanism 202. The blocking structure 203 includes a first blocking block 2031 and a second blocking block 2032. The first blocking block 2031 and the second blocking block 2032 are arranged circumferentially on the support platform 100. The line connecting the center of the first blocking block 2031 and the rotation center of the rotating mechanism 202 forms a preset angle with the line connecting the center of the second blocking block 2032 and the rotation center of the rotating mechanism 202. This preset angle corresponds to the rotation angle that the support platform 100 needs to achieve. For example, in an application requiring a 90-degree rotation, this preset angle can be set to a corresponding angle; in an application requiring a 180-degree rotation, this preset angle can be set to other angles. By setting two blocking blocks, this device can have bidirectional positioning and locking capabilities: when the carrying platform 100 rotates forward, the first blocking block 2031 cooperates with the buffer structure 220 and the adsorption structure 210; when the carrying platform 100 rotates in the reverse direction to reset, the second blocking block 2032 cooperates with another set of buffer structures 220 and adsorption structures 210. This enables bidirectional stable positioning throughout the entire stroke.

[0032] As a preferred embodiment, the adsorption structure 210 includes a suction cup 206 mounted on a support surface 2041. An adsorption connector 207 is provided on the side of the support body 204 facing away from the support surface 2041, and the adsorption connector 207 is connected to the suction cup 206. Further, the adsorption structure 210 can employ a vacuum adsorption method. Specifically, the adsorption structure 210 includes at least one suction cup 206 mounted on the support surface 2041. An adsorption connector 207 is provided on the side of the support body 204 facing away from the support surface 2041, and the adsorption connector 207 is connected to the suction cup 206 through an internal air passage. The adsorption connector 207 is used to connect an external vacuum generating device, such as a vacuum generator or vacuum pump. When the blocking structure 203 moves into position and contacts or approaches the suction cup 206 to a gap of 0.1mm-0.5mm, the vacuum generating device is activated or remains open, creating a negative pressure inside the suction cup 206, thereby firmly adsorbing the blocking structure 203. This vacuum adsorption method has the advantages of uniform adsorption force, no magnetic pollution, and no special requirements for the 203 material of the barrier structure, making it particularly suitable for electronic product assembly environments that are sensitive to magnetic fields.

[0033] In one preferred embodiment, the adsorption connector 207 is connected to the drive body 201. The drive body 201 can provide power to the rotating mechanism 202 and also provide negative pressure to the adsorption connector 207. The opening and closing of the air passage between the adsorption connector 207 and the drive body 201 is controlled by a position sensor.

[0034] Reference Figure 6 As shown, in another preferred embodiment, the adsorption structure 210 includes an electromagnetic suction head 208 mounted on a support surface 2041, and a blocking structure 203 configured as a ferromagnetic material. The electromagnetic suction head 208 is mounted on the support surface 2041 and electrically connected to an external electromagnetic controller via a wire. Correspondingly, the blocking structure 203 is configured as a ferromagnetic material that can be attracted by the electromagnetic suction head 208, such as low-carbon steel, pure iron, or ferrite. When the blocking structure 203 moves into position, the electromagnetic controller supplies an excitation current to the electromagnetic suction head 208, which generates a strong magnetic field, thus attracting and fixing the blocking structure 203. Electromagnetic adsorption has the advantages of fast response speed and adjustable adsorption force (by adjusting the current magnitude), making it suitable for applications requiring rapid locking and release and insensitive to magnetic field interference.

[0035] The device of this application can actively absorb and lock the rotating bearing device after the rotating mechanism 202 has reached its position, thereby improving positioning accuracy and operational stability. By adding an active adsorption structure 210 to the traditional buffer structure 220, a continuous holding force is applied to the blocking structure 203 at the moment the rotating mechanism 202 reaches its position, effectively offsetting the reverse impact generated by the release of elastic potential energy by the buffer's return spring, thus completely eliminating the rebound and shaking phenomenon after the platform reaches its position. Due to the elimination of rebound, the bearing platform 100 can stably maintain its theoretical position. When combined with a high-precision blocking block and buffer structure 220, its performance far exceeds that of traditional pneumatic swing tables. The adsorption force of this application can be independently adjusted (by adjusting the vacuum or electromagnetic current), thereby adapting to different platform masses (different moments of inertia) and different rotational speeds (different kinetic energies). Even when the buffer cannot completely absorb the kinetic energy, the adsorption structure 210 can actively capture and lock the blocking structure 203, avoiding rebound after a hard collision. Because the rebound and repeated impacts upon arrival are effectively suppressed, the impact load on key components such as the buffer, the bearings of the rotating mechanism 202, and the rack inside the cylinder are significantly reduced, thereby extending the service life of these mechanical parts. This avoids problems such as product displacement, falling, and scratches caused by platform vibration, significantly reducing the product defect rate during production and improving the overall yield of the production line. Since the device can operate stably at higher speeds without rebound, operators or the control system can appropriately increase the air source pressure or adjust the throttle valve to accelerate the rotation speed, thereby achieving a higher production cycle. Both the adsorption structure 210 and the buffer structure 220 adopt a modular design and are installed on an independent support body 204, facilitating disassembly, replacement, or upgrades. Users can select vacuum adsorption or electromagnetic adsorption methods according to actual process requirements.

[0036] As a preferred embodiment, an adsorption structure 210 is provided at each end along the length of the support body 204, with the two adsorption structures 210 positioned on the same side of the support body 204. In a preferred spatial layout, a set of adsorption structures 210 is provided at each end along the length of the support body 204. The two sets of adsorption structures 210 are positioned on the same side of the support body 204 and correspond to the positions of the first blocking block 2031 and the second blocking block 2032, respectively. This symmetrical arrangement not only makes the structural stress of the entire device more balanced but also facilitates modular design.

[0037] As a preferred embodiment, the platform 100 includes a first mounting hole and a second mounting hole. The first mounting hole is used to fix the rotating mechanism 202, and the second mounting hole can be used to install other parts or tooling fixtures. The second mounting hole is located around the first mounting hole.

[0038] In a preferred embodiment, the drive body 201 includes a cylinder, and the rotating mechanism 202 is configured to rotate under the pneumatic power of the cylinder. The main structure includes the drive body 201 and the rotating mechanism 202. The rotating mechanism 202 is rotatably mounted on the drive body 201 and is fixedly connected to the support platform 100. The drive body 201 provides the power to drive the rotating mechanism 202 to rotate about its axis of rotation. Preferably, the drive body 201 is a single-acting or double-acting cylinder, which converts linear motion into rotational motion through a rack and pinion mechanism or a crank-rocker mechanism. The rotating mechanism 202 may specifically include a rotating shaft, a bearing housing, and a connecting flange to accurately transmit the rotation angle and withstand the overturning moment. In a typical application configuration of this application, the drive body 201 is a cylinder, and the rotating mechanism 202 rotates under the pneumatic power output from the cylinder. The cylinder has the advantages of simple structure, low cost and convenient maintenance. When combined with the active adsorption locking structure of this application, it can overcome the traditional disadvantage of low positioning accuracy and achieve high-precision rotary positioning with high cost performance.

[0039] This application provides a rotating bearing device that can adapt to different platform masses and different movement speeds, thereby enhancing the versatility and robustness of the equipment.

[0040] One aspect of this application provides a rotating support device, specifically comprising: a support platform 100, a main structure, a blocking structure 203, and an adsorption structure 210. The support platform 100 is made of lightweight aluminum alloy and precision-machined by CNC. Its upper surface is anodized to improve wear resistance. Multiple sets of vacuum adsorption holes (not shown in the figure) are evenly distributed on the upper surface of the support platform 100 for adsorbing and fixing printed circuit boards of different sizes. A tapered positioning hole is provided at the geometric center of the support platform 100 for precise positioning with the connecting flange on the rotating mechanism 202 and for fastening with bolts.

[0041] Furthermore, the main structure includes a drive body 201, a rotating mechanism 202, and a support body 204. The drive body 201 is a double-acting cylinder. This cylinder is fixed to the working plate of the equipment through four mounting holes at its front end. A precision rack is connected to the end of the piston rod of the cylinder. The rack meshes with a gear in the rotating mechanism 202.

[0042] The rotating mechanism 202 includes a rotating shaft, bearings (for bearing combined radial and axial loads), bearing housings, and the aforementioned connecting flange. The rotating shaft is driven by a gear and rack. When the piston rod of the cylinder extends or retracts, the rack drives the gear to rotate, thereby rotating the rotating shaft and the connecting flange. In this embodiment, the maximum rotation angle achievable by the gear is 95 degrees, but by setting a mechanical limit, the actual operating angle is 90 degrees. A high-precision angle sensor (not shown in the figure) is installed at the lower end of the rotating shaft to provide real-time feedback on the rotation angle of the rotating mechanism 202 relative to the cylinder.

[0043] Furthermore, the support body 204 is a metal block, preferably made of steel. The support body 204 is fixed to the side of the cylinder block of the drive body 201 (cylinder) by four M6 hexagonal socket screws. A flat support surface 2041 is machined onto the upper part of the support body 204. The direction of this support surface 2041 is perpendicular to the rotation direction of the rotating mechanism 202 (i.e., the tangential direction of the edge of the bearing platform 100). In this example, when the rotating mechanism 202 performs a 90-degree reciprocating swing, the direction of movement of the edge of the bearing platform 100 at the moment of arrival is approximately parallel to the normal direction of the support surface 2041. This arrangement facilitates the frontal impact and adsorption of the buffer structure 220 and the adsorption structure 210.

[0044] The blocking structure 203 includes a first blocking block 2031 and a second blocking block 2032. Both are made of wear-resistant stainless steel, are cuboid in shape, and have threads at one end, which are used to fix them to the lower surface of the support platform 100 through threaded holes. The line connecting the center of the first blocking block 2031 and the center of the rotation axis forms a 90-degree angle with the line connecting the center of the second blocking block 2032 and the center of the rotation axis. This means that when the support platform 100 rotates 90 degrees clockwise from its initial position, the first blocking block 2031 moves to a position opposite to the buffer structure 220; conversely, when it rotates 90 degrees counterclockwise, the second blocking block 2032 moves to a position opposite to the other set of buffer structures 220. To reduce impact noise, a polyurethane damping pad is embedded at the end of the blocking block facing the buffer structure 220.

[0045] In this embodiment, two sets of buffer structures 220 are provided, corresponding to the positions of the first blocking block 2031 and the second blocking block 2032, respectively. The two sets of buffer structures 220 are symmetrically arranged on the support surface 2041 along the length of the support body 204 (i.e., corresponding to the two positioning directions). Each set of buffer structures 220 uses an adjustable hydraulic buffer 205 of model number [model number missing]. The main body of the hydraulic buffer 205 is threaded into the threaded hole of the support body 204, and its piston rod extends outward perpendicular to the support surface 2041. The hydraulic buffer 205 has been pre-damped at the factory, and the user can also change the size of the throttle orifice by rotating the adjusting needle valve at the end of the buffer to adapt to different kinetic energies. The hydraulic buffer 205 extends a certain height out of the support surface 2041. The top of its piston rod is machined into a hemispherical protrusion. This arc-shaped surface ensures point contact when the blocking block impacts at an angle not exceeding 3 degrees, preventing jamming.

[0046] This embodiment employs a vacuum adsorption method. The adsorption structure 210 includes two suction cups 206, which are respectively disposed adjacent to two sets of hydraulic buffers 205 and located on the side of the buffer closer to the rotation axis (i.e., in the direction in which the blocking block continues to move slightly forward after impacting the buffer). The suction cups 206 are flat ribbed rubber suction cups made of nitrile rubber (NBR), which has good oil resistance and elasticity.

[0047] The suction cup 206 is mounted on the support surface 2041 via a hollow metal threaded connector. The support body 204 has a long, narrow air passage machined inside. One end of the air passage connects to the bottom of the mounting threaded hole of the suction cup 206, and the other end connects to an adsorption connector 207 on the side of the support body 204 facing away from the support surface 2041. The adsorption connector 207 is a quick-connect pneumatic connector used to connect a flexible hose (vacuum line). This hose then connects to an external vacuum generator and a solenoid directional valve.

[0048] Reference Figures 3 to 5As shown, during the operation, the control system (PLC or industrial computer) issues a command, the vacuum solenoid valve is closed, and the inside of the suction cup 206 is open to the atmosphere. The cylinder drives the rotating mechanism 202 and the support platform 100 to rotate to the initial limit position. At this time, the first blocking block 2031 makes slight contact with its corresponding buffer but does not compress it. The operator or automatic feeding robot places the product (such as a PCB board) on the support platform 100, the vacuum suction hole is activated, and the product is fixed.

[0049] The control system issues a "reverse rotation to position" command. The cylinder drives the support platform 100 to rotate counterclockwise. The support platform 100, together with the product and the first blocking block 2031, rotates together at an angular velocity ω.

[0050] When the second blocking block 2032 rotates approximately 88 degrees with the supporting platform 100 (with 2 mechanical degrees remaining from the theoretical final position), the front end of the first blocking block 2031 first contacts the hemispherical protrusion of the hydraulic buffer 205. During the remaining small-angle stroke, the piston rod of the hydraulic buffer 205 is compressed, and the internal hydraulic oil flows at high speed through the throttle orifice, converting most of the rotational kinetic energy (approximately 70%-85%) into heat energy. Simultaneously, the return spring inside the hydraulic buffer 205 is compressed, storing approximately 15%-30% of the original kinetic energy as elastic potential energy. It is worth noting that due to the presence of hydraulic damping, the rotational speed decreases rapidly in the last 2 degrees.

[0051] As the rotating mechanism 202 continues to rotate through the remaining angle and reaches the precise 90-degree position, the front end face of the first blocking block 2031 is fully attached to the upper surface of the suction cup 206. At this time, the hydraulic buffer 205 has been compressed to the end of its effective stroke, the compression of the return spring reaches its maximum, and the elastic potential energy reaches its peak.

[0052] At that instant, the control system sends an opening signal to the vacuum solenoid valve. The vacuum generator starts working, and a negative pressure is quickly built up inside the suction cup 206. Because the surface of the first blocking block 2031 is a precision-machined stainless steel plane, it forms a good seal with the suction cup 206.

[0053] Immediately afterwards, the return spring of the hydraulic damper 205 releases its elastic potential energy, generating a force that attempts to push the piston rod outward. This force is transmitted to the support platform 100 through the first blocking block 2031, causing it to tend to rebound in the opposite direction (counterclockwise). However, the suction force of the suction cup 206 is now in effect, effectively applying a continuous holding force to the first blocking block 2031 in the opposite direction to the rebound. As long as the suction force is greater than the maximum rebound force generated by the return spring (which can be obtained through experimental calibration or calculation), the rebound motion will be completely suppressed.

[0054] While the carrier platform 100 is held in place, the host computer sends a "process execution" signal. For example, the automatic placement head begins placing components onto the product, or the vision system takes a picture for inspection. Because the carrier platform 100 is in a stable state without shaking or bounce, the accuracy of the process execution is guaranteed.

[0055] After the process is completed, the control system first closes the vacuum solenoid valve, and the suction cup 206 is depressurized through the vacuum breaking valve on the vacuum generator or by directly venting to the atmosphere, thus eliminating the suction force. Then, the cylinder drives the support platform 100 to rotate clockwise, and the second blocking block 2032 disengages from the suction cup 206 and returns to its initial position. Upon returning to its position, the first blocking block 2031 repeats the above buffer-adsorption process with its corresponding buffer structure 220 and adsorption structure 210, achieving position locking.

[0056] Another embodiment is provided below, the main difference from the above embodiment is that the adsorption structure 210 is implemented in an electromagnetic manner.

[0057] The main difference between this embodiment and Embodiment 1 lies in the specific implementation of the adsorption structure 210. The structure and connection relationships of the remaining parts (bearing platform 100, driving body 201, rotating mechanism 202, supporting body 204, blocking structure 203, and buffer structure 220) are basically the same as those in Embodiment 1, and will not be described again here.

[0058] In this embodiment, the adsorption structure 210 employs electromagnetic adsorption. Specifically, a miniature electromagnetic suction head 208 is fixedly mounted on the support surface 2041 of the support body 204, adjacent to each hydraulic buffer 205, using screws. The outer shell of the electromagnetic suction head 208 is cylindrical, containing an excitation coil wound on a soft magnetic core. The coil leads are led out through pre-set wire holes inside the support body 204 and connected to an external electromagnetic controller. The electromagnetic controller provides an adjustable DC power supply of 0-24V with a maximum output current of 2A.

[0059] Correspondingly, the materials of the first blocking block 2031 and the second blocking block 2032 are changed from ordinary stainless steel to pure iron, which has high magnetic permeability and low coercivity, facilitating rapid attraction and release. The end faces of the blocking blocks facing the electromagnetic chuck 208 are precision ground.

[0060] The working process is basically the same as in Example 1, except for the adsorption and release steps: When the first blocking block 2031 moves into position, the angle sensor or position switch triggers a signal, and the electromagnetic controller immediately outputs the rated voltage to the electromagnetic chuck 208. The electromagnetic chuck 208 generates a strong magnetic field, firmly attracting the first blocking block 2031, which is made of ferromagnetic material. The attraction force can be adjusted by regulating the output voltage or by using pulse width modulation (PWM).

[0061] Because the electromagnetic suction head 208 has an extremely short response time (typically less than 5 milliseconds), it can build up a sufficiently large suction force before the hydraulic buffer 205 reset spring begins to release potential energy, thereby achieving a "pre-locking" effect.

[0062] After the process is completed, the electromagnetic controller cuts off the output current, the magnetic field disappears quickly (or a brief reverse demagnetizing pulse is applied), and the attraction force disappears. The rotating mechanism 202 can then rotate freely.

[0063] Compared with vacuum adsorption, the electromagnetic adsorption in this embodiment has the following characteristics: it establishes suction force in milliseconds, making it particularly suitable for high-speed reciprocating motion (such as more than 3 cycles per second); it has no air passage or sealing parts, and is not afraid of dusty or oily environments; and the electromagnetic suction force is usually higher than the vacuum suction force for the same volume.

[0064] Therefore, this embodiment is particularly suitable for automated workstations that are heavy-duty, high-speed, in harsh environments and not sensitive to magnetic fields, such as automotive parts welding and metal stamping and handling.

[0065] Based on the two embodiments described above, this embodiment adds an adaptive control system to further enhance the device's adaptability to different load and speed conditions.

[0066] A high-precision pressure sensor and a flow proportional valve are installed at the air inlet and outlet of the drive body 201 (cylinder), respectively. An encoder is installed on the rotating shaft of the rotating mechanism 202. A miniature contact or non-contact displacement sensor is installed on the support body 204 near the suction cup 206 or the electromagnetic suction head 208. All sensors are electrically connected to the controller (PLC or embedded motion controller).

[0067] The rotary bearing device provided in this application features a reasonable structural design and high integration, making it widely applicable to various automated equipment requiring high-precision rotary positioning, such as those used in electronics manufacturing, semiconductor packaging, precision machinery assembly, medical device production, and food packaging. It is particularly suitable for flexible production lines that require frequent product model changes and stringent requirements for positioning stability. This device can directly replace existing pneumatic swing tables with springback issues on production lines without significant modifications to the main equipment, demonstrating excellent compatibility and widespread application value.

[0068] The above description is merely a preferred embodiment of this application and is not intended to limit the scope of this application. For those skilled in the art, various improvements and modifications can be made without departing from the spirit and principles of this application. For example, the number, shape, and installation position of the adsorption structures can be changed, or the cylinder drive can be replaced with an electric cylinder or hydraulic cylinder while still applying the adsorption locking concept of this application. These improvements and modifications should also be considered within the scope of protection of this application.

[0069] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0070] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A rotating bearing device, characterized in that, include: Platform; The main structure includes a drive body and a rotating mechanism, wherein the rotating mechanism is rotatably mounted on the drive body and is fixedly connected to the support platform; A blocking structure is fixed to the supporting platform; An adsorption structure is fixed to the driving body, and the adsorption structure is used to adsorb the blocking structure.

2. The rotating bearing device according to claim 1, characterized in that, The main structure also includes: A support body includes a support surface, the support body is fixedly connected to the drive body, and the support surface intersects the rotation direction of the rotating mechanism; The adsorption structure is disposed on the support surface.

3. The rotating bearing device according to claim 2, characterized in that, Also includes: A buffer structure is disposed on the support surface; Preferably, the distance by which the buffer structure protrudes from the support surface is greater than the distance by which the adsorption structure protrudes from the support surface.

4. The rotating bearing device according to claim 1, characterized in that, The blocking structure includes a first blocking block and a second blocking block; The line connecting the center of the first blocking block and the center of the rotating mechanism forms a predetermined angle with the line connecting the center of the second blocking block and the center of the rotating mechanism.

5. The rotating bearing device according to claim 2, characterized in that, The adsorption structure includes a suction cup, which is mounted on the support surface. An adsorption connector is provided on the side of the support body away from the support surface, and the adsorption connector is connected to the suction cup.

6. The rotating bearing device according to claim 2, characterized in that, The adsorption structure includes an electromagnetic suction head mounted on the support surface, and the blocking structure is configured as a ferromagnetic material.

7. The rotating bearing device according to claim 4, characterized in that, An adsorption structure is provided at each end along the length of the support body, and the two adsorption structures are located on the same side of the support body.

8. The rotating bearing device according to claim 3, characterized in that, The buffer structure includes a hydraulic buffer, and the side of the hydraulic buffer opposite to the support surface includes a protrusion, the protrusion including an arc-shaped surface.

9. The rotating bearing device according to claim 1, characterized in that, The support platform includes a first mounting hole and a second mounting hole. The first mounting hole is used to fix the rotating mechanism, and the second mounting hole is disposed around the first mounting hole.

10. The rotating bearing device according to claim 1, characterized in that, The drive body includes a cylinder, and the rotating mechanism is configured to rotate under the pneumatic force of the cylinder. An angle sensor is provided on the rotating mechanism and the angle sensor is configured to obtain the rotation angle of the rotating mechanism relative to the cylinder.

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