Radial seal ring assembly mechanism for oil ring seal ring assembly line

Abstract

This invention belongs to the field of oil injection ring seal assembly technology, and specifically relates to a radial seal ring assembly mechanism, which solves the problem of low automation in radial seal ring assembly. This radial seal ring assembly mechanism includes a frame, on which an oil injection ring carrier is slidably connected. The oil injection ring carrier is driven to move by a carrier translation drive component. The frame also includes a seal ring transfer platform and a seal ring stacking module. A seal ring transfer structure is provided between the seal ring transfer platform and the seal ring stacking module for transferring the radial seal rings from the seal ring stacking module to the seal ring transfer platform. A seal ring transfer structure is provided between the seal ring transfer platform and the assembly station for picking up the radial seal rings from the seal ring transfer platform and aligning them with the upper end of the oil injection ring. A seal ring assembly structure is provided at the assembly station for removing the radial seal rings from the seal ring transfer structure and pressing them into place. This achieves a high degree of automation and high assembly efficiency in assembling radial seal rings from the oil injection ring.

Description

Technical Field

[0001] This invention belongs to the field of oil injection ring seal assembly technology, and specifically relates to a radial seal assembly mechanism for an oil injection ring seal assembly line. Background Technology

[0002] With the development of modern society, vigorously promoting new energy projects is an inevitable trend in the automotive industry. The motor injection ring is an essential part of the electric vehicle motor system. The injection ring is assembled on the outer side of both ends of the motor stator and plays a role in sealing the coolant in the radial and axial directions, respectively.

[0003] Currently, there is no mature automated solution for the assembly of the fuel injection ring seal. Most assembly lines lack automated radial seal assembly mechanisms, and assembling the radial seal onto the fuel injection ring still requires a large amount of manual intervention, resulting in low automation, low assembly efficiency, and high assembly costs. Summary of the Invention

[0004] The purpose of this invention is to address the aforementioned problems in the prior art by proposing a radial sealing ring assembly mechanism for an oil injection ring sealing ring assembly line.

[0005] To achieve the innovative objectives of this invention, the following technical solutions can be used:

[0006] A radial sealing ring assembly mechanism for an oil injection ring assembly line includes a frame, on which an oil injection ring carrier is slidably connected. The oil injection ring carrier is driven to move by a carrier translation drive component and can move between a receiving station for receiving the tested oil injection ring and an assembly station for assembling the radial sealing ring onto the oil injection ring.

[0007] The frame is also provided with a sealing ring transfer platform and a sealing ring stacking module for vertically distributing and storing radial sealing rings. A sealing ring transfer structure is provided between the sealing ring transfer platform and the sealing ring stacking module for removing the radial sealing ring at the top of the sealing ring stacking module and transferring it to the sealing ring transfer platform.

[0008] A sealing ring transfer structure is provided between the sealing ring transfer platform and the assembly station, which is used to remove the radial sealing ring from the sealing ring transfer platform and connect it with the radial sealing groove at the upper end of the oil injection ring.

[0009] The assembly station is equipped with a sealing ring assembly structure, which is used to remove the radial sealing ring from the sealing ring transfer structure and press it down to fit it onto the oil injection ring at a predetermined position.

[0010] The radial sealing ring assembly mechanism of this invention is used to assemble radial sealing rings on an injection ring. An annular mounting step with its stepped surface facing upwards is provided on the outer side of the upper end of the injection ring. The radial sealing ring needs to be fitted onto the radial sealing groove above the mounting step. In this mechanism, the injection ring carrier is used to receive qualified parts that have completed pre-assembly inspection at the receiving station and move them to the assembly station for radial sealing ring assembly. The radial sealing rings to be assembled are stored in a nested manner on the sealing ring stacking module and are arranged vertically, with the top and bottom ends of adjacent sealing rings connected. The sealing ring transfer structure is used to transfer the radial sealing rings at the uppermost end of the sealing ring stacking module. The sealing ring is removed and transferred to the sealing ring transfer platform. The sealing ring transfer platform serves as a transition between the sealing ring stacking module and the sealing ring transfer structure. The removed radial sealing ring is then fitted onto the sealing ring transfer structure, which in turn aligns the radial sealing ring with the corresponding position on the upper end of the fuel injection ring. The sealing ring assembly structure is used to push the sealing ring off to the corresponding installation position and applies a certain downward pressure to the radial sealing ring, ensuring that the bottom end of the sealing ring is in contact with the installation step, thus ensuring proper installation. This mechanism has a high degree of automation and can perform a series of actions, including receiving and assembling the fuel injection ring, supporting and removing the sealing ring, and assembling the sealing ring, resulting in high assembly efficiency.

[0011] In the radial sealing ring assembly mechanism of the above-mentioned oil injection ring sealing ring assembly line, the sealing ring stacking module includes several vertical rods forming a cylindrical sleeve post. A clearance gap is formed between adjacent vertical rods to allow the upper support pawl of the sealing ring transfer structure to pass through. A tray with an outer diameter larger than the cylindrical sleeve post is vertically slidably arranged between the vertical rods. The sealing rings are axially distributed and sleeved on the cylindrical sleeve post and located above the tray. A tray pushing assembly is provided between the tray and the frame.

[0012] The sealing ring stacking module consists of several vertical rods arranged in a circular pattern to form a cylindrical socket. This socket is used to fit the radial sealing ring. The clearance between the vertical rods allows the upper support pawl of the sealing ring transfer structure to enter, ensuring that the uppermost sealing ring can be removed by internal support. A vertically lifting tray is also provided on the cylindrical socket. This tray is driven by a tray pushing component to move up and down. It is mainly used to push the sealing ring on the cylindrical socket upward as a whole, so as to ensure that the uppermost sealing ring is close to the top, making it easy for the upper support pawl to remove.

[0013] In the radial sealing ring assembly mechanism of the above-mentioned oil injection ring sealing ring assembly line, the sealing ring stacking module includes at least two sets circumferentially distributed on the turntable. The turntable is rotatably connected to the frame and driven to rotate by the turntable rotation drive assembly. The turntable below the tray is provided with clearance through holes that allow the tray pushing assembly to pass through. The sealing ring stacking module also includes an annular base. The vertical rod is vertically fixed to the top surface of the annular base. The annular base is detachably fixed to the turntable by a quick-fixing structure. The tray is circumferentially evenly distributed with a plurality of first clearance grooves that allow the upper support pawl to extend into. The first clearance grooves are open radially outward. The tray pushing assembly includes a first linear actuator vertically fixed to the frame. The output end of the first linear actuator can push the tray upward through the clearance through holes.

[0014] Multiple sets of sealing ring stacking modules are arranged circumferentially on a turntable. The turntable rotates the sealing ring stacking modules, equipped with sealing rings, to the bottom of the sealing ring transfer structure for removal. Once all the sealing rings have been removed, the stacking modules are rotated out, allowing for timely replenishment of radial sealing rings. Each set of sealing ring stacking modules has a clearance hole on the turntable below it. This clearance hole ensures that the tray of the corresponding sealing ring stacking module can be smoothly pushed and engaged by the telescopic end of the tray pushing assembly when it rotates to the bottom of the sealing ring transfer structure. The tray pushing assembly can be implemented using a vertically positioned first linear actuator, such as a cylinder. The output end of the first linear actuator extends to lift the tray upwards, providing a stable pushing effect. When not needed, it can be lowered out of the clearance hole, ensuring normal rotation of the turntable. The annular base of the sealing ring stacking module is detachably fixed to the turntable, allowing for timely removal and replenishment after all sealing rings have been removed and rotated out. The annular base also has handles on both sides for easy lifting. After replenishment, it can be easily fixed on the turntable, making operation flexible. In addition, a first clearance groove is provided on the radial outer side of the tray for the entry of the upper support pawl, ensuring that the few sealing rings closest to the tray can be removed smoothly and stably.

[0015] Specifically, the quick-fixing structure includes an L-shaped latch rotatably connected to the top surface of the turntable via locking bolts. Each annular base corresponds to at least two L-shaped latches, and the horizontal fixing portion of the L-shaped latch is tightly fitted to the annular base. The L-shaped latch can rotate horizontally. When fixing is required, its horizontal fixing portion is located above the annular base. Further tightening of the locking bolts presses the horizontal fixing portion firmly onto the annular base, ensuring a stable fixation. The tray has evenly distributed insertion holes circumferentially, and the vertical rod passes through these insertion holes. The turntable rotation drive assembly includes a first circumferential driver mounted on the frame, and the output end of the first circumferential driver is connected to the turntable drive.

[0016] As an optimization, a push extension frame is connected to the output end of the first linear actuator. The push extension frame is slidably connected to the frame via a slide rod. At least two positioning posts are provided on the push plate at the end of the push extension frame. Positioning holes corresponding to the positioning posts are provided on the bottom surface of the tray. Easy-access guide surfaces are provided at the lower end of the positioning holes and / or the upper end of the positioning posts. During the push operation, the positioning posts on the push extension frame and the positioning holes on the tray engage, improving the stability of the tray when it is lifted.

[0017] In the radial seal assembly mechanism of the aforementioned oil injection ring seal assembly line, the seal transfer structure includes a pawl expander, which is mounted on an expander lifting structure and can move vertically. The expander lifting structure is mounted on the frame via an expander lateral movement structure and can move horizontally. The pawl expander includes an expander mounting base and upper support pawls that are circumferentially distributed on the bottom surface of the expander mounting base and extend vertically. An upper retraction and release drive structure is provided between the upper support pawls and the expander mounting base. The upper retraction and release drive structure includes a first conical frustum disposed between the upper support pawls. The upper support pawls are slidably connected to the expander mounting base via an upper pawl seat. A first roller is provided near the first conical frustum on the side of the upper pawl seat. The first roller rolls on the conical surface of the first conical frustum. A first elastic component is provided between the upper pawl seat and the expander mounting base to give the upper pawl seat a tendency to move toward the first conical frustum. The first conical frustum is driven to move up and down by a first lifting drive component.

[0018] The pawl expander consists of multiple sets of upper support pawls that move radially outward to achieve an expanding gripping effect on the sealing ring. The upper support pawls are slidably connected to the bottom surface of the expander mounting base via upper pawl seats. Under the action of the first elastic component, the first roller of the pawl seat rolls tightly against the ground on the first conical platform. The first conical platform is smaller at the bottom and larger at the top, and a circular slot is provided at the lower end. This circular slot helps to achieve weight reduction and prevents interference between the first conical platform and related structures below when it moves downward. By raising and lowering the first conical platform, the radial distance between the first roller and the axis of the platform can be controlled, thereby achieving synchronous radial advance and retreat of multiple sets of upper support pawls to ensure the internal support effect.

[0019] Specifically, the first lifting drive assembly includes a second linear actuator vertically mounted on the expansion handle mounting base, the output end of which is connected to the top surface of the first conical frustum. The upper pawl seat has a first crossbar extending in the direction of movement on the side away from the first conical frustum. The first crossbar passes through a first abutment block on the bottom surface of the expansion handle mounting base. The first elastic component includes a first spring sleeved on the first crossbar and compressed between the first abutment block and the upper pawl seat.

[0020] In the radial seal ring assembly mechanism of the aforementioned oil injection ring seal ring assembly line, a detection camera is provided on the frame to detect whether the radial seal ring on the pawl is installed backwards. A reversed material basket is provided on the side of the seal ring turntable. A longitudinal expansion structure is provided between the expansion hand transverse movement structure and the expansion hand lifting structure to transfer and remove the radial seal ring to the reversed material basket when reversed installation is detected. The expansion hand transverse movement structure includes a first transverse frame slidably connected to the frame at both ends. The first transverse frame is driven to move by a first transverse drive component. The expansion hand longitudinal movement structure includes a first longitudinal seat slidably connected to the transverse frame. The first longitudinal seat is driven to move by the first longitudinal drive component. The expansion hand lifting structure includes an expansion hand lifting seat slidably connected to the first longitudinal seat via a slide rod. The expansion hand lifting seat is connected to a third linear actuator provided on the first longitudinal seat. The expansion hand mounting seat is fixed below the expansion hand lifting seat. The third linear actuator is provided on the expansion hand lifting seat, and its output end passes through the expansion hand mounting seat and is connected to a first conical frustum.

[0021] Since the radial sealing ring is manually fitted onto the cylindrical sleeve, during the fitting process and the pallet pushing process, the inner ring may be on the outside or twisted, resulting in an incorrect installation. The detection camera visually detects this anomaly. When an incorrect installation is detected, the pawl expansion structure controls the pawl to move the sealing ring above the incorrectly installed material basket for removal. The detection method of the camera is existing technology and will not be elaborated on in detail.

[0022] In the radial seal ring assembly mechanism of the aforementioned fuel injection ring seal ring assembly line, the seal ring transfer table includes an annular transfer base mounted on a frame. A plurality of lower support pawls are circumferentially distributed on the top surface of the transfer base. These lower support pawls are slidably connected to the transfer base via lower pawl seats and are driven radially by a lower retraction / release drive structure to open and remove the radial seal ring from the seal ring transfer structure. The lower retraction / release drive structure includes a second conical frustum positioned between the lower support pawls. The lower support pawls are slidably connected to the transfer base via lower pawl seats. The lower pawl seat is provided with a second roller near the second conical frustum. The second roller rolls on the conical surface of the second conical frustum. A second elastic component is provided between the lower pawl seat and the transfer base to give the lower pawl seat a tendency to move toward the second conical frustum. The second conical frustum is driven to move up and down by a second lifting drive component. The sealing ring transfer platform is set on a second transverse frame that is slidably connected to the frame. The second transverse frame is driven to move by the second transverse drive component to control the movement of the sealing ring transfer platform between the sealing ring transfer structure and the sealing ring transfer structure.

[0023] The lower support pawl and the upper support pawl work similarly, and will not be explained again. The seal ring transfer platform can move laterally, realizing the transfer between the seal ring transfer structure and the seal ring transfer loading structure.

[0024] Specifically, the second lifting drive assembly includes a fourth linear actuator vertically mounted on the second transverse frame, the output end of which is connected to the top surface of the second conical frustum. A second crossbar extending in the direction of movement is provided on the side of the lower pawl seat away from the second conical frustum. The second crossbar passes through a second abutment block on the top surface of the transfer base. The second elastic assembly includes a second spring sleeved on the second crossbar and compressed between the second abutment block and the lower pawl seat.

[0025] In the radial seal ring assembly mechanism of the above-mentioned oil injection ring seal ring assembly line, the seal ring transfer structure includes a bottom-opening docking cylinder. The lower end of the docking cylinder has several vertically extending and open second clearance grooves evenly distributed around its lower end. The docking cylinder is slidably connected to the docking cylinder connection hole of the annular assembly base and is driven to move up and down by the docking cylinder lifting drive assembly. The assembly base is fixed to the bottom of the assembly lifting seat. The assembly lifting seat is slidably connected to the lower part of the assembly transverse frame through a slide rod and is driven to move up and down by the assembly lifting drive assembly. The assembly transverse frame is slidably connected to the upper part of the frame and is driven by the third transverse drive assembly to move between the assembly station and the seal ring turntable. The lower end of the docking cylinder protrudes from the docking cylinder connection hole, with its outer side used for the sleeve of the radial seal ring and its inner side used for docking with the upper end of the oil injection ring.

[0026] The sealing ring transfer structure specifically uses a docking cylinder to receive the sealing ring on the sealing ring transfer platform. The second clearance groove at the lower end of the docking cylinder is used for the passage of the lower support pawl, so that the lower support pawl can be radially contracted to transfer the sealing ring onto the docking cylinder. Moreover, the lower end of the docking cylinder is open, so that it can be sleeved onto the upper end of the oil injection ring. An assembly base is slidably provided on the outside of the docking cylinder. By moving the assembly base downward relative to the docking cylinder, the lower sealing ring can be pushed out of the docking cylinder, and the sealing ring transfer structure assists in transferring the sealing ring onto the oil injection ring.

[0027] In the radial seal ring assembly mechanism of the above-mentioned oil injection ring seal ring assembly line, the seal ring assembly structure includes a release frame that is vertically slidably connected to the frame. The release frame is driven by a release frame lifting drive assembly to move vertically up and down. The release frame is provided with a release through hole that allows the seal ring transfer structure to pass vertically with the radial seal ring. At least two release plates are evenly distributed circumferentially on the outer side of the release through hole. The release plates are slidably connected to the release frame and are driven to move by the release plate entry and exit drive assembly, so that the front end of the release plate extends above the radial seal ring to release the radial seal ring from the docking cylinder of the seal ring transfer structure to the oil injection ring and press it down.

[0028] The release frame is equipped with a release through hole for the seal ring transfer structure to pass vertically with the radial seal ring. The inner side of the release plate is arc-shaped to match the shape of the seal ring and the oil injection ring. The release plate entry and exit drive assembly drives the release plate to move radially. The inner end of the release plate extends to the upper end of the seal ring. When the release frame descends, the release plate on it can pull the seal ring off and press it down into the preset position to make the assembly in place.

[0029] Specifically, the frame is equipped with two sets of vertical mounting brackets. The two ends of the deflector are slidably connected to the vertical mounting brackets via a slide rail structure. The deflector lifting drive assembly includes a fifth linear driver mounted on the frame and connected to the deflector at its output end. The deflector in / out drive assembly includes a sixth linear driver mounted on the deflector, and the output end of the sixth linear driver is connected to the deflector.

[0030] In the radial sealing ring assembly mechanism of the above-mentioned oil injection ring assembly line, the frame is also provided with a flipping station for flipping the assembled radial sealing ring to facilitate the subsequent installation of the bottom end face sealing ring. The flipping station is provided with a flipping structure, and the platform translation drive assembly can also move the oil injection ring platform from the assembly station to the flipping station.

[0031] The oil injection ring processed by this invention needs to be fitted with a radial sealing ring on the outer side of the upper end, and an end face sealing ring needs to be installed on the central sealing groove on the lower end face. For this purpose, after the oil injection ring carrier is assembled at the assembly station, it will be moved to the flipping station. The flipping station is used to flip the oil injection ring so that the sealing groove at the lower end faces upward, which facilitates the subsequent assembly of the end face sealing ring assembly mechanism.

[0032] Specifically, the frame is equipped with a platform slide rail, which passes under the release frame of the sealing ring assembly structure. The oil injection ring platform is slidably connected to the platform slide rail. The platform translation drive assembly includes a linear motor module parallel to the platform slide rail, and the linear motor module is connected to the oil injection ring platform. The top surface of the oil injection ring platform is provided with an annular outer positioning protrusion, the inner diameter of which is adapted to the outer diameter of the oil injection ring.

[0033] In the radial sealing ring assembly mechanism of the above-mentioned oil injection ring sealing ring assembly line, the flipping structure includes a flipping gripper, the flipping gripper is disposed on a gripper rotating seat, the gripper rotating seat is rotatably connected to a gripper lifting seat and is driven by the flipping drive assembly to rotate 180 degrees along the vertical plane, and the gripper lifting seat is vertically slidably connected to the frame and is driven by the flipping lifting drive assembly to perform lifting and lowering actions.

[0034] The flipping gripper includes two L-shaped gripper bodies that are slidably connected to the gripper rotating seat and arranged opposite to each other. A synchronous telescopic drive assembly is provided between the L-shaped gripper bodies and the gripper rotating seat.

[0035] The flipping structure is specifically achieved through a flipping gripper that can rotate along a vertical plane. The flipping gripper can clamp the fuel injection ring by having two L-shaped claws close together. The flipping lifting drive component is used to lower the flipping gripper to grab the fuel injection ring to be flipped or to place the flipped fuel injection ring. The flipping drive component is used to drive the flipping gripper to rotate the fuel injection ring 180 degrees, which can stably achieve the flipping effect of the fuel injection ring.

[0036] Specifically, the flipping drive assembly includes a second circumferential driver mounted on the gripper lifting seat, and the gripper rotating seat is mounted on the rotating end of the second circumferential driver. The synchronous telescopic drive assembly includes a double-headed cylinder fixed on the gripper rotating seat, and the two output ends of the double-headed cylinder are respectively connected to the L-shaped gripper body.

[0037] As an optimization, protective pads are provided on opposite sides of the L-shaped claw, and the protective pads have fitting notches adapted to the outer diameter of the fuel injection ring. The protective pads prevent damage to the outer wall of the fuel injection ring, and the fitting notches ensure the stability of the gripping action.

[0038] Compared with the prior art, the present invention has the following main advantages:

[0039] 1. In this radial sealing ring assembly mechanism, the radial sealing ring is sleeved and stored on the sealing ring stacking module. The sealing ring transfer structure is used to remove the uppermost radial sealing ring and transfer it to the sealing ring transfer platform. The sealing ring transfer platform is used for transition, and the removed radial sealing ring is sleeved on the sealing ring transfer structure. The sealing ring transfer structure then aligns the radial sealing ring with the corresponding position on the upper end of the oil injection ring. The sealing ring assembly structure is used to push the sealing ring off onto the radial sealing groove and also applies a certain downward pressure to the radial sealing ring so that the bottom end of the sealing ring is in contact with the installation step, ensuring proper installation. This mechanism has a high degree of automation and can realize a series of actions such as receiving and assembling the oil injection ring, supporting and assembling the sealing ring, and assembling the sealing ring, resulting in high assembly efficiency.

[0040] 2. Multiple sets of sealing ring stacking modules are provided and distributed circumferentially on the turntable. The turntable can rotate the sealing ring stacking modules with the sealing rings installed to the bottom of the sealing ring transfer structure for the sealing ring transfer structure to remove. The sealing ring stacking modules with all the sealing rings removed can be rotated out to replenish radial sealing rings in a timely manner.

[0041] 3. The pallet is driven by the pallet pusher assembly to lift and lower, which can be used to push the sealing ring on the cylindrical sleeve upward as a whole, so as to ensure that the uppermost sealing ring is close to the top, making it easy for the upper support pawl to pick up.

[0042] 4. The annular base of the sealing ring stacking module is detachably fixed to the turntable, and the annular base is also provided with handles on both sides for easy lifting, so that the sealing rings can be removed in time after they are taken out and rotated out for easy replenishment. After replenishment, they can also be easily fixed on the turntable, making the operation flexible.

[0043] 5. Since the radial sealing ring is manually fitted onto the cylindrical sleeve, during the fitting process and the pallet pushing process, the inner ring may be on the outside or twisted in reverse. The detection camera will visually detect this abnormality. When the reverse installation abnormality is detected, the expansion hand longitudinal movement structure can move the sealing ring to the top of the reversed material basket for removal.

[0044] 6. After the oil injection ring carrier is assembled at the assembly station, it will be moved to the flipping station. The flipping station is used to flip the oil injection ring so that the sealing groove at the lower end faces upward, which facilitates the subsequent assembly of the end face sealing ring assembly mechanism. Attached Figure Description

[0045] Figure 1 This is a schematic diagram of the overall structure of the radial sealing ring assembly mechanism provided by the present invention;

[0046] Figure 2 This is a schematic diagram of the sealing ring stacking module provided by the present invention;

[0047] Figure 3This is a schematic diagram showing the combination of the turntable, annular base, and tray provided by the present invention;

[0048] Figure 4 This is a schematic diagram of the sealing ring transfer structure provided by the present invention;

[0049] Figure 5 This is a schematic diagram of the pawl expansion mechanism provided by the present invention;

[0050] Figure 6 This is a schematic diagram of the structure of the sealing ring transfer platform provided by the present invention;

[0051] Figure 7 This is a schematic diagram of the sealing ring transfer structure provided by the present invention;

[0052] Figure 8 This is a schematic diagram of the sealing ring assembly structure and the flipping structure provided by the present invention;

[0053] Figure 9 yes Figure 8 Detailed magnified view of F1 in the middle;

[0054] Figure 10 This is a schematic diagram of the structure of the oil injection ring and radial sealing ring provided by the present invention.

[0055] In the diagram, the components are: frame 400, oil injection ring platform B2, sealing ring transfer structure B3, sealing ring assembly structure B4, detection camera B5, loading basket B6, docking cylinder B12, second clearance groove B13, docking cylinder connection hole B14, assembly lifting seat B15, separation frame B16, separation through hole B17, separation plate B18, separation frame lifting drive assembly B19, separation plate in / out drive assembly B20, flipping structure B21, platform slide rail B22, external positioning protrusion B23, flipping gripper B24, gripper rotating seat B25, synchronous telescopic drive assembly B26, flipping drive assembly B27, platform translation drive assembly B28, docking cylinder lifting drive assembly B29, assembly base B30, and gripper lifting seat B31.

[0056] E1, sealing ring stacking module; E2, sealing ring transfer structure; E3, sealing ring transfer platform; E4, socket post; E5, vertical rod; E6, clearance gap; E7, tray; E8, turntable; E9, clearance through hole; E10, first clearance groove; E11, tray push assembly; E12, push extension frame; E13, positioning post; E14, positioning hole; E15, quick fixing structure; E16, L-shaped lock; E17, handle; E18, turntable rotation drive assembly; E19, pawl expansion handle; E19, expansion handle mounting base. E20, Upper support pawl; E21, First conical frustum; E22, First roller; E23, First elastic component; E24, First lifting drive component; E25, First crossbar; E26, First abutment block; E27, Annular base; E28, Expansion handle lifting structure; E29, Expansion handle lateral movement structure; E30, Transfer base; E31, Lower support pawl; E32, Second conical frustum; E33, Second roller; E34, Second elastic component; E35, Second lifting drive component; E36.

[0057] Injection ring 100, radial sealing groove 103, radial sealing ring 200. Detailed Implementation

[0058] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0059] First, a brief explanation of the application example: the oil injection ring sealing ring assembly line related to this invention is for a Tesla project, and also involves a product in the motor system, namely the motor oil injection ring. This project supplies two vehicle models, with the product assembled on the outer sides of both ends of the motor stator, serving to seal the coolant in the radial and axial directions, respectively. These two models are popular Tesla models with a huge market size and business volume. The annual sales volume of this product is 1 million units, with an annual output value of 32 million RMB; it has also driven customers such as BYD, Geely, Qingshan, Weiri, Wuxi Xingqu, and Tianjin Weipai to designate oil injection ring projects. The radial sealing ring assembly mechanism mainly involved in this invention is a part of the oil injection ring sealing ring assembly line.

[0060] Specific implementation examples Figure 1-10As shown, the radial sealing ring assembly mechanism of this oil injection ring assembly line includes a frame 400, on which an oil injection ring carrier B2 is slidably connected. The oil injection ring carrier B2 is driven to move by a carrier translation drive assembly B28, and can move between a receiving station for receiving the tested oil injection ring 100 and an assembly station for assembling the radial sealing ring 200 onto the oil injection ring 100. The frame 400 is also provided with a sealing ring transfer platform E3 and a sealing ring stacking module E1 for vertically distributing and storing the radial sealing rings 200. A sealing ring transfer structure E2 is provided between blocks E1, which is used to remove the radial sealing ring 200 at the top of the sealing ring stacking module E1 and transfer it to the sealing ring transfer platform E3; a sealing ring transfer structure B3 is provided between the sealing ring transfer platform E3 and the assembly station, which is used to remove the radial sealing ring 200 from the sealing ring transfer platform E3 and mate it with the radial sealing ring 200 to the outer side of the upper end of the oil injection ring 100; a sealing ring assembly structure B4 is provided at the assembly station, which is used to remove the radial sealing ring 200 from the sealing ring transfer structure B3 and press it down to fit it onto the radial sealing groove 103 of the oil injection ring 100.

[0061] Specifically, this radial sealing ring 200 assembly mechanism is used to assemble the radial sealing ring 200 on the fuel injection ring 100. An annular mounting step with its stepped surface facing upwards is provided on the outer side of the upper end of the fuel injection ring 100. The radial sealing ring 200 needs to be fitted onto the radial sealing groove above the mounting step. In this mechanism, the fuel injection ring carrier B2 is used to receive qualified parts that have completed pre-assembly inspection at the receiving station and move them to the assembly station for assembling the radial sealing ring 200. The radial sealing rings 200 to be assembled are stored on the sealing ring stacking module E1 in a nested manner and are arranged vertically, with the top and bottom ends of adjacent sealing rings connected. The sealing ring transfer structure E2 is used to transfer the radial sealing rings at the top of the sealing ring stacking module E1. The radial sealing ring 200 is removed and transferred to the sealing ring transfer platform E3. The sealing ring transfer platform E3 serves as a transition between the sealing ring stacking module E1 and the sealing ring transfer structure B3. The removed radial sealing ring 200 is then placed onto the sealing ring transfer structure B3, which in turn aligns the radial sealing ring 200 with the corresponding position on the upper end of the oil injection ring 100. The sealing ring assembly structure B4 is used to push the sealing ring down to the corresponding installation position and applies a certain downward pressure to the radial sealing ring 200, ensuring that the bottom end of the sealing ring is in contact with the installation step and that the installation is in place. This mechanism has a high degree of automation and can perform a series of actions, including receiving and assembling the oil injection ring 100, supporting and assembling the sealing ring, and assembling the sealing ring, resulting in high assembly efficiency.

[0062] like Figure 2 , 3As shown, the sealing ring stacking module E1 includes several vertical rods E5 forming a cylindrical sleeve post E4. A clearance gap E6 is formed between adjacent vertical rods E5 to allow the upper support pawl E21 of the sealing ring transfer structure E2 to pass through. A tray E7 with an outer diameter larger than the cylindrical sleeve post E4 is vertically slidably arranged between the vertical rods E5. The sealing rings are axially distributed and fitted on the cylindrical sleeve post E4 and located above the tray E7. A tray pushing assembly E11 is provided between the tray E7 and the frame 400. The sealing ring stacking module E1 includes 6 sets of circumferentially distributed on the turntable E8. The turntable E8 is rotatably connected to the frame 400 and is driven to rotate by the turntable rotation drive assembly E18. The turntable E8 below the tray E7 is provided with a clearance through hole E9 that allows the tray push assembly E11 to pass through. The sealing ring stacking module E1 also includes an annular base E28. The vertical rod E5 is vertically fixed to the top surface of the annular base E28. The annular base E28 is detachably fixed to the turntable E8 by a quick-fixing structure E15. The tray E7 is circumferentially evenly distributed with several first clearance grooves E10 that allow the upper support pawl E21 to extend into. The first clearance grooves E10 are open radially outward. The tray push assembly E11 includes a first linear driver that is vertically fixed to the frame 400. The output end of the first linear driver can push the tray E7 upward through the clearance through hole E9.

[0063] Specifically, the sealing ring stacking module E1 consists of several vertical rods E5, which are distributed in a circumferential shape to form a cylindrical socket E4. The socket E4 is used to fit the radial sealing ring 200. The clearance gap E6 between the vertical rods E5 is used for the upper support pawl E21 of the sealing ring transfer structure E2 to enter, ensuring that the uppermost sealing ring can be removed by internal support. A vertically lifting tray E7 is also provided on the cylindrical socket E4. The tray E7 is driven by the tray pushing component E11 to lift and lower. It is mainly used to push the sealing ring on the cylindrical socket E4 upward as a whole, so as to ensure that the uppermost sealing ring is close to the top, which is convenient for the upper support pawl E21 to remove. Multiple sets of sealing ring stacking modules E1 are provided and circumferentially distributed on the turntable E8. The turntable E8 can rotate the sealing ring stacking modules E1 with the sealing rings installed to below the sealing ring transfer structure E2 for removal by the sealing ring transfer structure E2. Once the sealing rings have been removed, the sealing ring stacking modules E1 are rotated out, allowing for timely replenishment of radial sealing rings 200. Each set of sealing ring stacking modules E1 has a clearance through hole E9 on the turntable E8 below it. This clearance through hole E9 ensures that the tray E7 of the corresponding sealing ring stacking module E1 can be smoothly pushed and engaged by the telescopic end of the tray pushing assembly E11 when it rotates to below the sealing ring transfer structure E2. The tray pushing assembly E11 can be implemented by a vertically arranged first linear actuator, such as a cylinder. The output end of the first linear actuator extends to lift the tray E7 upwards, providing a stable pushing effect. When not needed, it can be lowered and disengaged from the clearance through hole E9, ensuring the normal rotation of the turntable E8. The annular base E28 of the sealing ring stacking module E1 is detachably fixed to the turntable E8, allowing for timely removal and replenishment after all sealing rings have been removed and rotated out. The annular base E28 also features handles E17 on both sides for easy lifting. After replenishment, it can be easily fixed to the turntable E8, offering flexible operation. Furthermore, a first clearance groove E10 is provided on the radially outer side of the tray E7 for the entry of the upper support pawl E21, ensuring that the sealing rings closest to the tray E7 can be smoothly and stably removed.

[0064] In this embodiment, the quick-fixing structure E15 includes an L-shaped latch E16 rotatably connected to the top surface of the turntable E8 via a locking bolt. One annular base E28 corresponds to two L-shaped latches E16, and the horizontal fixing part of the L-shaped latch E16 is tightly fitted to the annular base E28. The L-shaped latch E16 can rotate horizontally. When fixing is required, its horizontal fixing part is located above the annular base E28. By further tightening the locking bolt, the horizontal fixing part can be pressed firmly onto the annular base E28, making the fixation stable. The tray E7 has evenly distributed insertion holes circumferentially, and the vertical rod E5 passes through these insertion holes. The turntable rotation drive assembly E18 includes a first circumferential driver mounted on the frame 400, and the output end of the first circumferential driver is connected to the turntable E8 via a transmission connection.

[0065] As an optimization of this embodiment, a push extension frame E12 is connected to the output end of the first linear actuator. The push extension frame E12 is slidably connected to the frame 400 via a slide rod. At least two positioning posts E13 are provided on the push plate at the end of the push extension frame E12. The bottom surface of the tray E7 is provided with positioning holes E14 corresponding to the positioning posts E13. The lower end of the positioning hole E14 and / or the upper end of the positioning post E13 are provided with an easy-entry guide surface. During the push operation, the positioning posts E13 on the push extension frame E12 and the positioning holes E14 on the tray E7 are inserted, improving the stability of the tray E7 when it is lifted.

[0066] like Figure 4 , 5 As shown, the sealing ring transfer structure E2 includes a pawl expander E19, which is mounted on the expander lifting structure E29 and can move vertically. The expander lifting structure E29 is mounted on the frame 400 via the expander lateral movement structure E30 and can move horizontally. The pawl expander E19 includes an expander mounting base E20 and upper support pawls E21 that are circumferentially distributed on the bottom surface of the expander mounting base E20 and extend vertically. An upper retraction drive structure is provided between the upper support pawls E21 and the expander mounting base E20. The upper retraction drive structure includes... The device includes a first conical frustum E22 disposed between the upper support pawls E21. The upper support pawls E21 are slidably connected to the expansion arm mounting base E20 via an upper pawl seat. A first roller E23 is provided on the side of the upper pawl seat near the first conical frustum E22. The first roller E23 rolls on the conical surface of the first conical frustum E22. A first elastic component E24 is provided between the upper pawl seat and the expansion arm mounting base E20, which gives the upper pawl seat a tendency to move toward the first conical frustum E22. The first conical frustum E22 is driven to rise and fall by a first lifting drive component E25.

[0067] Specifically, the pawl expander E19 consists of multiple sets of upper support pawls E21 that move radially outward to achieve a spreading gripping effect on the sealing ring. The upper support pawls E21 are slidably connected to the bottom surface of the expander mounting base E20 via upper pawl seats. Under the action of the first elastic component E24, the first roller E23 of the pawl seat rolls tightly against the first conical frustum E22. The first conical frustum E22 is smaller at the bottom and larger at the top, and a circular slot is provided at the lower end. This circular slot helps to achieve weight reduction and prevents interference between the first conical frustum E22 and the related structures below when it moves downward. By raising and lowering the first conical frustum E22, the radial distance between the first roller E23 and the axis of the frustum can be controlled, thereby achieving synchronous radial in-and-out movements of multiple sets of upper support pawls E21 to ensure the internal support effect. The first lifting drive assembly E25 includes a second linear actuator vertically mounted on the expansion handle mounting base E20, the output end of which is connected to the top surface of the first conical frustum E22. A first crossbar E26 extending in the direction of movement is provided on the side of the upper pawl seat away from the first conical frustum E22. The first crossbar E26 passes through a first abutment block E27 on the bottom surface of the expansion handle mounting base E20. The first elastic assembly E24 includes a first spring sleeved on the first crossbar E26 and compressed between the first abutment block and the upper pawl seat.

[0068] As a further optimization of this embodiment, a detection camera B5 is provided on the frame 400 to detect whether the radial sealing ring 200 on the pawl expansion hand E19 is installed backwards. A reverse-installation material basket B6 is provided on the side of the seal ring turntable E3. A pawl longitudinal movement structure is provided between the expansion hand lateral movement structure E30 and the expansion hand lifting structure E29 to transfer and remove the radial sealing ring 200 to the reverse-installation material basket B6 when reverse installation is detected. The expansion hand lateral movement structure E30 includes a first lateral movement frame slidably connected to the frame 400 at both ends. The first lateral movement frame is subjected to a first lateral movement. The drive assembly drives the movement. The expansion hand longitudinal movement structure includes a first longitudinal movement seat slidably connected to the transverse movement frame. The first longitudinal movement seat is driven to move by the first longitudinal movement drive assembly. The expansion hand lifting structure E29 includes an expansion hand lifting seat slidably connected to the first longitudinal movement seat via a slide rod. The expansion hand lifting seat is connected to a third linear driver disposed on the first longitudinal movement seat. The expansion hand mounting seat E20 is fixed below the expansion hand lifting seat. The third linear driver is disposed on the expansion hand lifting seat, and its output end passes through the expansion hand mounting seat E20 and is connected to the first conical frustum E22.

[0069] Specifically, since the radial sealing ring 200 is manually fitted onto the cylindrical sleeve post E4, during the fitting process and during the pushing process of the tray E7, the inner ring may be on the outside or twisted in reverse. The detection camera B5 detects this abnormality visually, and the pawl expansion structure can control the pawl expansion arm E19 to move the sealing ring above the reversed material basket B6 to remove it when the reversed installation abnormality is detected.

[0070] like Figure 6 As shown, the sealing ring transfer platform E3 includes an annular transfer base E31 mounted on the frame 400. Several lower support pawls E32 are circumferentially distributed on the top surface of the transfer base E31. The lower support pawls E32 are slidably connected to the transfer base E31 via lower pawl seats and are driven radially by a lower retraction drive structure to open and remove the radial sealing ring 200 from the sealing ring transfer structure E2. The lower retraction drive structure includes a second conical frustum E33 positioned between the lower support pawls E32. The lower support pawls E32 are slidably connected to the transfer base E31 via lower pawl seats, which are close to the second conical frustum. A second roller E34 is provided on the side of the truncated cone E33. The second roller E34 rolls on the conical surface of the second conical truncated cone E33. A second elastic component E35 is provided between the lower pawl seat and the transfer base E31, which tends to move the lower pawl seat toward the second conical truncated cone E33. The second conical truncated cone E33 is driven to rise and fall by the second lifting drive component E36. The sealing ring transfer platform E3 is set on the second transverse frame that is slidably connected to the frame 400. The second transverse frame is driven to move by the second transverse drive component to control the movement of the sealing ring transfer platform E3 between the sealing ring transfer structure E2 and the sealing ring transfer structure B3.

[0071] Specifically, the lower support pawl E32 and the upper support pawl E21 are similar and will not be explained again. The seal ring transfer platform E3 can move laterally, realizing the transfer between the seal ring transfer structure E2 and the seal ring transfer structure B3. Among them, the second lifting drive assembly E36 includes a fourth linear actuator vertically arranged on the second transverse frame, and the output end of the fourth linear actuator is connected to the top surface of the second conical frustum E33. The side of the lower pawl seat away from the second conical frustum E33 is provided with a second crossbar extending in the direction of movement. The second crossbar passes through a second abutment block on the top surface of the transfer base E31. The second elastic assembly E35 includes a second spring sleeved on the second crossbar and compressed between the second abutment block and the lower pawl seat.

[0072] like Figure 7As shown, the sealing ring transfer structure B3 includes a bottom-opening docking cylinder B12. The lower end of the docking cylinder B12 has several vertically extending and open-bottomed second clearance grooves B13 evenly distributed circumferentially. The docking cylinder B12 is slidably connected to the docking cylinder connection hole B14 of the annular assembly base B30 and is driven to move up and down by the docking cylinder lifting drive assembly B29. The assembly base B30 is fixed to the bottom of the assembly lifting seat B15. The assembly lifting seat B15 is slidably connected to the lower part of the assembly transverse frame via a slide rod and is driven to move up and down by the assembly lifting drive assembly. The assembly transverse frame is slidably connected to the upper part of the frame 400 and is driven by the third transverse drive assembly to move between the assembly station and the sealing ring turntable E3. The lower end of the docking cylinder B12 protrudes from the docking cylinder connection hole B14, with its outer side used for the radial sealing ring 200's sleeve and its inner side used for docking with the upper end of the oil injection ring 100.

[0073] Specifically, the sealing ring transfer structure B3 receives the sealing ring on the sealing ring transfer platform E3 via the docking cylinder B12. The second clearance groove B13 at the lower end of the docking cylinder B12 is used for the passage of the lower support pawl E32, so that the lower support pawl E32 can be radially contracted to transfer the sealing ring onto the docking cylinder B12. Moreover, the lower end of the docking cylinder B12 is open, so that it can be sleeved onto the upper end of the oil injection ring 100. An assembly base B30 is slidably provided on the outside of the docking cylinder B12. By moving the assembly base B30 downward relative to the docking cylinder B12, the lower end of the sealing ring can be pushed out from the docking cylinder B12, and the auxiliary sealing ring assembly structure B4 transfers the sealing ring onto the oil injection ring 100.

[0074] like Figure 8 , 9 As shown, the sealing ring assembly structure B4 includes a release frame B16 that is vertically slidably connected to the frame 400. The release frame is driven by the release frame lifting drive assembly B19 to move vertically. The release frame B16 is provided with a release through hole B17 that allows the sealing ring transfer structure B3 to pass vertically with the radial sealing ring 200. At least two release pieces B18 are evenly distributed on the outer circumference of the release through hole B17. The release pieces B18 are slidably connected to the release frame B16 and are driven to move by the release piece in-out drive assembly B20. The front end of the release piece B18 can extend above the radial sealing ring 200 to release the radial sealing ring 200 from the docking cylinder B12 of the sealing ring transfer structure B3 to the oil injection ring 100 and press it downward.

[0075] Specifically, the release frame B16 is provided with a release through hole B17 for the sealing ring transfer structure B3 to carry the radial sealing ring 200 vertically through. The inner side of the release piece B18 is arc-shaped, which is adapted to the shape of the sealing ring and the oil injection ring 100. The release piece entry and exit drive assembly B20 drives the release piece B18 to move radially. The inner end of the release piece B18 extends to the upper end of the sealing ring. When the release frame B16 descends, the release piece B18 on it can pull the sealing ring off and press it down into the preset position, so that the assembly is in place.

[0076] In this embodiment, two sets of vertical mounting brackets are provided on the frame 400. The two ends of the deflector B16 are slidably connected to the vertical mounting brackets via a slide rail structure. The deflector lifting drive assembly B19 includes a fifth linear driver disposed on the frame 400 and connected to the deflector B16 at its output end. The deflector in / out drive assembly B20 includes a sixth linear driver disposed on the deflector B16, and the output end of the sixth linear driver is connected to the deflector B18.

[0077] As a further optimization, the frame 400 is also provided with a flipping station for flipping the assembled radial sealing ring 200 oil injection ring 100 to facilitate the subsequent installation of the bottom end face sealing ring. The flipping station is provided with a flipping structure B21, and the platform translation drive assembly B28 can also move the oil injection ring platform B2 from the assembly station to the flipping station. The flipping structure B21 includes a flipping gripper B24, which is disposed on a gripper rotating seat B25. The gripper rotating seat B25 is rotatably connected to a gripper lifting seat B31 and is driven by the flipping drive assembly B27 to rotate 180 degrees along the vertical plane. The gripper lifting seat B31 is vertically slidably connected to the frame 400 and is driven by the flipping lifting drive assembly to move up and down. The flipping gripper B24 includes two L-shaped claw bodies slidably connected to the gripper rotating seat B25 and arranged opposite to each other. A synchronous telescopic drive assembly B26 is provided between the L-shaped claw bodies and the gripper rotating seat B25. A protective pad is provided on the opposite side of the L-shaped claw body, and the protective pad has a fitting notch that is adapted to the outer diameter of the oil injection ring 100.

[0078] Specifically, after assembly at the assembly station, the fuel injection ring carrier B2 will move to the flipping station. The flipping station is used to flip the fuel injection ring 100 so that the lower sealing groove faces upwards, facilitating subsequent assembly of the end face sealing ring assembly mechanism. The flipping structure B21 is implemented using a flipping gripper B24 that can rotate vertically. The flipping gripper B24 uses two L-shaped claws to clamp the fuel injection ring 100. The flipping lifting drive assembly lowers the flipping gripper B24 to grip the fuel injection ring 100 to be flipped or to place the flipped fuel injection ring 100. The flipping drive assembly B27 drives the flipping gripper B24 to rotate the fuel injection ring 100 180 degrees, ensuring stable flipping of the fuel injection ring 100. The protective pad prevents damage to the outer wall of the fuel injection ring 100, and the fitted notch ensures stable gripping.

[0079] In this embodiment, a platform slide rail B22 is provided on the frame 400. The platform slide rail B22 passes under the release bracket B16 of the sealing ring assembly structure B4. The oil injection ring platform B2 is slidably connected to the platform slide rail B22. The platform translation drive assembly B28 includes a linear motor module parallel to the platform slide rail B22, and the linear motor module is connected to the oil injection ring platform B2. An annular outer positioning protrusion B23 is provided on the top surface of the oil injection ring platform B2, and the inner diameter of the outer positioning protrusion B23 is adapted to the outer diameter of the oil injection ring 100. The flip drive assembly B27 includes a second circumferential driver provided on the gripper lifting seat B31, and a gripper rotating seat B25 is provided on the rotating end of the second circumferential driver. The synchronous telescopic drive assembly B26 includes a double-headed cylinder fixed on the gripper rotating seat B25, and the two output ends of the double-headed cylinder are respectively connected to the L-shaped gripper body.

[0080] Specific working principle: The pre-assembly qualified oil injection ring 100 is transferred to the oil injection ring carrier B2 at the receiving station. The oil injection ring carrier B2 moves to the assembly station to await the assembly of the radial sealing ring 200. Simultaneously, the upper support pawl E21 of the sealing ring transfer structure E2 moves in a retracted state to the uppermost radial sealing ring 200 on the cylindrical sleeve E4, then expands to open and remove the sealing ring. It is then transferred to the lower support pawl E32 of the sealing ring transfer platform E3, where it is opened and retrieved. Then, the sealing ring transfer platform E3 moves to the lower end of the moving path of the sealing ring transfer structure B3. The lower end of the docking cylinder B12 descends and extends into the lower support pawl E32. The lower support pawl E32 retracts and puts the sealing ring onto the lower end of the docking cylinder B12. Then, the docking cylinder B12 moves and docks with the upper end of the oil injection ring 100. Then, the assembly base B30 descends a certain distance relative to the docking cylinder B12 and rises to reset. Then, the release plate B18 extends, and its inner end enters the position between the sealing ring and the assembly base B30. Then, the release plate B18 descends and pushes the sealing ring onto the oil injection ring 100. It then descends further to press the sealing ring tightly against the radial sealing groove 103 of the oil injection ring 100. After the assembly is completed, the docking cylinder B12 and the release plate B18 are removed. Then, the oil injection ring carrier B2 moves the oil injection ring 100 to the flipping station. The flipping gripper B24 descends to grab the oil injection ring 100 and lifts it up. The flipping gripper B24 rotates 180 degrees so that the lower end of the oil injection ring 100 faces upwards, and then puts it back on the oil injection ring carrier B2 for the subsequent end face sealing ring assembly mechanism to grab.

[0081] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. A radial seal ring assembly mechanism for an oil injection ring assembly line, comprising a frame (400), characterized in that, The frame (400) is slidably connected to an oil injection ring carrier (B2), which is driven to move by a carrier translation drive assembly (B28) and can move between a receiving station for receiving the oil injection ring (100) after testing and an assembly station for assembling the radial sealing ring (200) onto the oil injection ring (100). The frame (400) is also provided with a sealing ring transfer platform (E3) and a sealing ring stacking module (E1) for vertically distributing and storing radial sealing rings (200). A sealing ring transfer structure (E2) is provided between the sealing ring transfer platform (E3) and the sealing ring stacking module (E1) for removing the uppermost radial sealing ring (200) from the sealing ring stacking module (E1) and transferring it to the sealing ring transfer platform (E3). A sealing ring transfer structure (B3) is provided between the sealing ring transfer platform (E3) and the assembly station, which is used to remove the radial sealing ring (200) on the sealing ring transfer platform (E3) and attach the radial sealing ring (200) to the outer side of the upper end of the oil injection ring (100). The assembly station is provided with a sealing ring assembly structure (B4), which is used to remove the radial sealing ring (200) on the sealing ring transfer structure (B3) and press it down so that the radial sealing ring (200) is fitted onto the radial sealing groove (103) of the oil injection ring (100). The sealing ring assembly structure (B4) includes a vertically slidingly connected release frame (B16) on the frame (400). The release frame is driven by the release frame lifting drive assembly (B19) to move vertically. The release frame (B16) has a release through hole (B17) through which the sealing ring transfer structure (B3) carrying the radial sealing ring (200) passes vertically. At least two release pieces (B18) are evenly distributed on the outer circumference of the release through hole (B17). The release pieces (B18) are slidably connected to the release frame (B16) and driven to move by the release piece entry and exit drive assembly (B20). The front end of the release piece (B18) extends above the radial sealing ring (200) to release the radial sealing ring (200) from the sealing ring transfer structure (B3) onto the oil injection ring (100) and press it downward.

2. The radial sealing ring assembly mechanism of the fuel injection ring sealing ring assembly line according to claim 1, characterized in that, The sealing ring stacking module (E1) includes several vertical rods (E5) forming a cylindrical sleeve post (E4). A clearance gap (E6) is formed between adjacent vertical rods (E5) to allow the upper support pawl (E21) of the sealing ring transfer structure (E2) to pass through. A tray (E7) with an outer diameter larger than the cylindrical sleeve post (E4) is vertically slidably arranged between the vertical rods (E5). The sealing rings are axially distributed and fitted on the cylindrical sleeve post (E4) and located above the tray (E7). A tray pushing assembly (E11) is provided between the tray (E7) and the frame (400).

3. The radial sealing ring assembly mechanism of the oil injection ring sealing ring assembly line according to claim 2, characterized in that, The sealing ring stacking module (E1) includes at least two sets circumferentially distributed on the turntable (E8). The turntable (E8) is rotatably connected to the frame (400) and driven to rotate by the turntable rotation drive assembly (E18). The turntable (E8) below the tray (E7) is provided with a clearance through hole (E9) that allows the tray push assembly (E11) to pass through. The sealing ring stacking module (E1) also includes an annular base (E28), the vertical rod (E5) is vertically fixed to the top surface of the annular base (E28), and the annular base (E28) is detachably fixed to the turntable (E8) by a quick-fixing structure (E15). The pallet (E7) has several first clearance grooves (E10) evenly distributed circumferentially to allow the upper support pawl (E21) to extend into, and the first clearance grooves (E10) are open radially outward; The pallet pushing assembly (E11) includes a first linear driver that is vertically fixed to the frame (400), the output of which is capable of pushing the pallet (E7) upward through a clearance through hole (E9).

4. The radial sealing ring assembly mechanism of the oil injection ring sealing ring assembly line according to claim 1, characterized in that, The sealing ring transfer structure (E2) includes a pawl expander (E19), which is mounted on the expander lifting structure (E29) and can move vertically. The expander lifting structure (E29) is mounted on the frame (400) via the expander lateral movement structure (E30) and can move horizontally. The ratchet expansion handle (E19) includes an expansion handle mounting base (E20) and an upper support ratchet (E21) that is circumferentially distributed on the bottom surface of the expansion handle mounting base (E20) and extends vertically. An upper retraction and extension drive structure is provided between the upper support ratchet (E21) and the expansion handle mounting base (E20). The upper retraction and extension drive structure includes a first conical frustum (E22) disposed between the upper support pawls (E21). The upper support pawls (E21) are slidably connected to the expansion handle mounting base (E20) via an upper pawl seat. A first roller (E23) is provided on the side of the upper pawl seat near the first conical frustum (E22). The first roller (E23) rolls on the conical surface of the first conical frustum (E22). A first elastic component (E24) is provided between the upper pawl seat and the expansion handle mounting base (E20) to give the upper pawl seat a tendency to move toward the first conical frustum (E22). The first conical frustum (E22) is driven to rise and fall by a first lifting drive component (E25).

5. The radial sealing ring assembly mechanism of the oil injection ring sealing ring assembly line according to claim 4, characterized in that, The frame (400) is equipped with a detection camera (B5) for detecting whether the radial sealing ring (200) on the pawl expansion hand (E19) is installed backwards. The sealing ring transfer table (E3) is provided with an inverted loading basket (B6) on the side. The expansion hand transverse movement structure (E30) and the expansion hand lifting structure (E29) are provided with an expansion hand longitudinal movement structure for transferring and removing the radial sealing ring (200) to the inverted loading basket (B6) when it is detected that the radial sealing ring (200) is installed backwards. The expansion hand transverse movement structure (E30) includes a first transverse movement frame that is slidably connected to the frame (400) at both ends. The first transverse movement frame is driven to move by a first transverse movement drive assembly. The expansion hand longitudinal movement structure includes a first longitudinal movement seat that is slidably connected to the first transverse movement frame. The first longitudinal movement seat is driven to move by a first longitudinal movement drive assembly. The aforementioned expansion arm lifting structure (E29) includes an expansion arm lifting seat slidably connected to the first longitudinal sliding seat via a slide rod. The expansion arm lifting seat is connected to a third linear actuator disposed on the first longitudinal sliding seat. The expansion arm mounting seat (E20) is fixed below the expansion arm lifting seat. The third linear actuator is disposed on the expansion arm lifting seat, and its output end passes through the expansion arm mounting seat (E20) and is connected to the first conical frustum (E22).

6. The radial sealing ring assembly mechanism of the fuel injection ring sealing ring assembly line according to claim 1, characterized in that, The sealing ring transfer platform (E3) includes an annular transfer base (E31) mounted on the frame (400). The top surface of the annular transfer base (E31) is circumferentially distributed with a plurality of lower support pawls (E32). The lower support pawls (E32) are slidably connected to the annular transfer base (E31) through a lower pawl seat and are driven to move radially by a lower retraction drive structure to open and remove the radial sealing ring (200) on the sealing ring transfer structure (E2). The lowering and extending drive structure includes a second conical frustum (E33) disposed between the lower support pawls (E32). The lower support pawls (E32) are slidably connected to the annular transfer base (E31) via a lower pawl seat. A second roller (E34) is provided on the side of the lower pawl seat near the second conical frustum (E33). The second roller (E34) rolls on the conical surface of the second conical frustum (E33). A second elastic component (E35) is provided between the lower pawl seat and the annular transfer base (E31) to give the lower pawl seat a tendency to move toward the second conical frustum (E33). The second conical frustum (E33) is driven to rise and fall by a second lifting drive component (E36). The sealing ring transfer platform (E3) is mounted on a second transverse frame that is slidably connected to the frame (400). The second transverse frame is driven to move by a second transverse drive assembly to control the movement of the sealing ring transfer platform (E3) between the sealing ring transfer structure (E2) and the sealing ring transfer structure (B3).

7. The radial sealing ring assembly mechanism of the fuel injection ring sealing ring assembly line according to claim 1, characterized in that, The sealing ring transfer structure (B3) includes a docking cylinder (B12) with its opening facing downward. The lower end of the docking cylinder (B12) has several vertically extending and open second clearance grooves (B13) evenly distributed around its lower end. The docking cylinder (B12) is slidably connected to the docking cylinder connection hole (B14) of the annular assembly base (B30) and is driven to lift by the docking cylinder lifting drive assembly (B29). The assembly base (B30) is fixed to the bottom of the assembly lifting seat (B15). The assembly lifting seat (B15) is slidably connected to the lower part of the assembly transverse frame via a slide rod, and can be lifted and lowered by the assembly lifting drive assembly. The assembly transverse frame is slidably connected to the upper part of the frame (400), and can be moved between the assembly station and the sealing ring turntable (E3) by the third transverse drive assembly. The lower end of the docking cylinder (B12) exposes the docking cylinder connection hole (B14), the outer side of which is used for the sleeve of the radial sealing ring (200), and the inner side is used for docking with the upper end of the oil injection ring (100).

8. The radial sealing ring assembly mechanism of the fuel injection ring sealing ring assembly line according to any one of claims 1-7, characterized in that, The frame (400) is also provided with a flipping station for flipping the oil injection ring (100) after the radial sealing ring (200) is assembled, so as to facilitate the subsequent installation of the end face sealing ring at the bottom. The flipping station is provided with a flipping structure (B21). The platform translation drive assembly (B28) can also move the oil injection ring platform (B2) from the assembly station to the flipping station.

9. The radial sealing ring assembly mechanism of the oil injection ring sealing ring assembly line according to claim 8, characterized in that, The flipping structure (B21) includes a flipping gripper (B24), which is disposed on a gripper rotating seat (B25). The gripper rotating seat (B25) is rotatably connected to a gripper lifting seat (B31) and is driven by a flipping drive assembly (B27) to rotate 180 degrees along the vertical plane. The gripper lifting seat (B31) is vertically slidably connected to the frame (400) and is driven by a flipping lifting drive assembly to perform lifting and lowering actions. The flipping gripper (B24) includes two L-shaped gripper bodies that are slidably connected to the gripper rotating seat (B25) and arranged opposite to each other. A synchronous telescopic drive assembly (B26) is provided between the L-shaped gripper bodies and the gripper rotating seat (B25).

Images