Nested device, method and oil filling assembly equipment

Abstract

The present application relates to the field of combined processing, in particular to a nesting device, method and oil injection assembly equipment. The present application is used for nesting a shaft with multiple rings; comprising a nesting base, the nesting base is provided with a shaft carrier, a ring carrier and a nesting driver; wherein the shaft carrier and the ring carrier are respectively used for carrying the shaft and the multiple rings; the nesting driver is arranged on the side of the shaft carrier away from the ring carrier, and the shaft is pushed towards the direction of the ring to be matched with the ring through the execution end capable of penetrating the shaft carrier; the end surface of the shaft carrier away from the nesting driver is provided with a superposition execution end, and the two wall surfaces perpendicular to the superposition execution end are constructed as guide ends, the guide ends are slidingly matched with the ring carrier; the bottom surface of the shaft carrier is connected with a superposition driving mechanism, and the superposition execution end can be driven by the superposition driving mechanism to run along the plane where the guide ends are located, abut against the ring located at the end and push it towards the adjacent ring.

Description

Technical Field

[0001] This invention relates to the field of combined processing, and more particularly to nested devices, methods and oil injection assembly equipment. Background Technology

[0002] In the assembly process of mechanical products, it is often necessary to nest shafts with multiple rings (such as bearings, seals, gaskets, gears, etc.) to form shaft system assemblies. For example, in the assembly of products such as motors, reducers, and transmission devices, multiple different types of rings need to be fitted onto the shaft in a predetermined order.

[0003] Existing nested assembly devices typically employ a split structure: the shaft carrier for mounting the shaft and the overlapping mechanism for pushing the rings together are independent components. The shaft carrier is only responsible for supporting and positioning the shaft, while the overlapping function is achieved by a separate push plate or push rod, requiring additional assembly space. This split design results in a bulky and large equipment structure, especially in automated production lines that require the integration of multiple workstations, where space layout is even more limited.

[0004] Furthermore, during the process of stacking multiple rings sequentially to form a tight arrangement, the stacking mechanism needs to push the end rings toward the adjacent rings. This action often involves a long stroke and requires precise pushing direction and smooth operation. If a long-stroke drive rod is used to directly connect to the push plate, the drive rod is prone to swaying or deflection due to the cantilever effect when extended, causing the stacking force to deviate, affecting the ring bonding effect, and may even damage the surface of the rings. Summary of the Invention

[0005] The purpose of this invention is to provide a nesting device, method, and oil injection assembly equipment to solve the problems of insufficient structural compactness and inadequate stability of the stacking action in the prior art.

[0006] The technical solution of the present invention is: a nesting device for nesting a shaft with multiple rings; comprising a nesting base, wherein the nesting base is provided with: A shaft carrier and a ring carrier are respectively provided with a shaft-carrying groove and a ring-carrying groove for mounting the shaft and multiple rings; Nested driver, located on the side of the shaft carrier away from the ring carrier, pushes the shaft toward the ring to engage with the ring through an actuator that can penetrate the shaft carrier; The shaft carrier has a stacking execution end on one end face away from the nested driver, and two walls perpendicular to the stacking execution end are constructed as guide ends, which slide in cooperation with the ring carrier; The bottom surface of the shaft carrier is connected to a stacking drive mechanism. The stacking execution end can run along the plane where the guide end is located under the drive of the stacking drive mechanism, abut against the ring located at the end and push it toward the adjacent ring.

[0007] Preferably, the overlapping execution end is formed by extending the carrier shaft groove toward the carrier ring groove; the outer wall of the solid part that meets the extension requirements is conformally set to the inner wall of the carrier ring groove, and the overlapping end can enter the carrier ring groove under the drive of the overlapping driver.

[0008] Preferably, the stacking drive mechanism includes a stacking driver, the actuating end of which is connected to a drive rod with a vertical axis, and the end of the drive rod away from the stacking driver is fixed to the bottom surface of the shaft carrier; A guide portion is provided on the ring carrier. The guide portion has a first guide wall for the guide end to slide against, and a second guide wall that extends parallel to the top surface of the shaft carrier and can be against it.

[0009] Preferably, the shaft carrier includes a first carrier and a second carrier, the overlapping execution end is disposed on the first carrier, and the second carrier is disposed between the first carrier and the nested driver; The second vehicle is connected to a lifting drive, which allows it to descend under the drive of the lifting drive, thereby moving away from the movement path of the nested drive.

[0010] Preferably, a pair of regularizing clamps are provided on both sides of the opening at the top of the corresponding ring groove. The bottom of the clamping end of the regularizing clamp is provided with a regularizing inclined surface. The pair of regularizing inclined surfaces abut against the protrusion on the outer edge of any ring as the regularizing clamps clamp, and limit the rotation angle of the protrusion when the pair of regularizing clamps are closed.

[0011] Preferably, a pressure cap mechanism is provided, the pressure cap mechanism including a pressure cap and a pressure cap driver, the pressure cap being driven by the pressure cap driver to cover the ring groove and the shaft groove, so that the ring groove, the shaft groove and the pressure cap form a closed assembly channel for assembling the shaft and the ring.

[0012] A nesting method, employing the nesting device described above, includes the following steps: Step 1: Place multiple rings into the ring carrier with the axis horizontal. Then, the alignment clamp moves to abut against the protrusions on the outer edge of the rings, so that the multiple rings maintain the same angle of rotation. Step 2: The stacking drive mechanism drives the first shaft carrier to slide along the length direction of the guide portion, so that the stacking execution end can extend into the ring groove and push the ring at the end toward the adjacent ring. Step 3: Raise the second shaft carrier and mount the shaft on the first and second shaft carriers. Then, the cover, driven by the cover driver, covers the openings at the top of the ring groove and the shaft groove, creating an assembly channel. Step 4: The actuator of the nested driver moves to abut against the end of the shaft; at the same time, the second shaft carrier descends to avoid a misalignment, so that the nested driver can send the shaft along the assembly channel into the carrier ring groove and nest with multiple rings.

[0013] An oil injection assembly device, employing the nesting device as described above, further includes an oil injection device. The oil injection device includes an oil injection base, on which an oil injection fixture and an oil gun are provided. The oil injection fixture has an oil injection groove for placing multiple rings. The oil gun corresponds to the end of the oil injection groove and, driven by an oil gun driver, can be inserted into the oil injection groove and apply oil to the rings.

[0014] Preferably, a cover clamp is provided at the opening at the top of the oil filling tank, and a pair of cover clamps close the top opening of the oil filling tank by clamping action.

[0015] Preferably, the oil injection fixture has multiple parallel oil injection bases, and the oil gun driver is connected to the oil injection bases through an oil gun moving module. The oil gun moving module can drive the oil gun driver to move along the arrangement direction of the multiple oil injection fixtures.

[0016] Compared with the prior art, the advantages of the present invention are: (1) This application integrates the function of the stacking push rod, which originally required a separate installation, into the shaft carrier. The end face of the shaft carrier away from the nested driver is constructed as the stacking execution end. Driven by the stacking drive mechanism, the stacking execution end can extend into the ring groove and push the loosely arranged rings tightly. This design allows the stacking action and the shaft mounting action to be completed by the same component, namely the shaft carrier, without occupying additional assembly space, thus solving the technical problem that the stacking mechanism and the nested driver cannot be arranged simultaneously due to limited space.

[0017] (2) The stacked driver is connected to the bottom surface of the shaft carrier through a vertical drive rod, placing the larger stacked driver below the shaft carrier, thus avoiding it from occupying the installation space of the nested driver. This "C-shaped" transmission path makes the point of application of the stacked driving force far away from the nested station, making way for the linear motion of the nested driver.

[0018] (3) Since the stacking driver, the drive rod and the shaft carrier form a C-shaped structure, the friction between the shaft carrier and the ring carrier during the stacking operation will generate a torque that causes the drive rod to rotate around the output end of the stacking driver, resulting in the shaft carrier "tilting". In this application, a second guide wall is set on the ring carrier and slides against the top surface of the shaft carrier, thereby limiting the tilting tendency of the shaft carrier, ensuring that the stacking execution end is always directly facing the ring in the ring groove, the stacking force direction is accurate, and the rings fit tightly without deviation. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a structural diagram of an oil injection assembly device according to the present invention; Figure 2This is a structural diagram of the nested device described in this invention; Figure 3 This is a structural diagram of the stacking drive mechanism described in this invention; Figure 4 This is a structural diagram of the first vehicle of the present invention; Figure 5 This is a first-view structural diagram of the ring-shaped vehicle described in this invention; Figure 6 This is a second-view structural diagram of the ring-shaped vehicle described in this invention; Figure 7 This is a bottom view of the nested device described in this invention, used to show the lifting drive connected to the second vehicle; Figure 8 This is a schematic diagram of the movement of the regulating fixture described in this invention; Figure 9 for Figure 1 A close-up view showing the capping mechanism; Figure 10 This is a structural diagram of the oil injection device described in this invention; in: 1. Nested base; 2. Shaft carrier; 21. First carrier; 211. Overlapping execution end; 212. Guide end; 213. Carrying shaft groove; 22. Second carrier; 23. Lifting driver; 3. Ring carrier; 31. Carrying ring groove; 32. Guide part; 321. First guide wall; 322. Second guide wall; 4. Nested driver; 5. Overlapping drive mechanism; 51. Overlapping driver; 52. Drive rod; 6. Regularizing clamp; 61. Regularizing inclined surface; 7. Covering mechanism; 71. Cover; 72. Covering driver; 200. Oil injection device; 210. Oil injection base; 220. Oil injection fixture; 230. Oil gun; 240. Oil gun driver; 250. Cover clamp; 260. Oil gun moving module; 270. Oil injection tank. Detailed Implementation

[0020] The present invention will be further described in detail below with reference to specific embodiments.

[0021] Example 1

[0022] A nesting device is disclosed for nesting a shaft-shaped part with multiple ring-shaped parts. The shaft and rings used in this application are part of the hinge structure in a laptop computer; wherein the shaft serves as the rotation center and cooperates with other parts in subsequent processes to form a hinge structure, while the rings in this application serve as dampers nested on the outer wall of the shaft, so that the hinge structure formed in subsequent processes can have damping during rotation.

[0023] like Figure 1 and Figure 2As shown, the nesting device includes a nesting base 1, on which a shaft carrier 2, a ring carrier 3, and a nesting actuator 4 are mounted. The ring carrier 3 has a ring-carrying groove 31 for accommodating multiple rings arranged sequentially in a horizontal orientation. The shaft carrier 2 has a shaft-carrying groove 213 for accommodating shafts. The nesting actuator 4 pushes the shaft towards the rings via its actuator, thereby achieving nesting between the shaft and the rings.

[0024] Multiple rings are typically transported from other workstations and placed into the ring carrier groove 31 by a robotic arm. This handover process loosens the rings that were originally tightly packed on the robotic arm's gripping end. Therefore, a device is needed to perform a stacking function, i.e., to push the rings in the ring carrier groove 31 to make them tightly packed together.

[0025] Typically, driving multiple rings from a loose to a tight arrangement is achieved using a separate push rod and a driver. However, since both the rings and the shaft in this application are small-diameter parts, it is impossible to guarantee that there is space in the same direction for the nested actuators for driving the shaft movement and the overlapping actuators for the tight fitting of the rings to be deployed simultaneously.

[0026] To solve this problem, such as Figure 3 As shown, this application provides a stacking drive mechanism 5 and integrates the stacking function onto the shaft carrier 2, that is, a part of the shaft carrier 2 serves as the execution end of the stacking function.

[0027] Specifically: Combination Figure 3 - Figure 5 As shown, the end face of the shaft carrier 2 away from the nested actuator 4 is configured as a superimposed actuating end 211. In a preferred embodiment of this application, the superimposed actuating end 211 is formed by extending the shaft carrier groove 213 toward the ring carrier groove 31, and its outer wall is conformally arranged to the inner wall of the ring carrier groove 31. Furthermore, on a vertical plane perpendicular to the length direction of the ring carrier groove 31, the outline of the superimposed actuating end 211 is located within the outline formed by the inner wall of the ring carrier groove 31. This allows the superimposed actuating end 211 to extend into the ring carrier groove 31 and abut against the ring located at its end, causing it to move toward the adjacent ring. The nested actuator 4 consists of an electric cylinder and a push rod fixed to the output end of the electric cylinder.

[0028] In other embodiments of this application, the overlapping execution end 211 can be constructed as a protruding structure of any shape fixed to one end of the shaft carrier 2 near the carrier ring groove 31, as long as it can extend into the carrier ring groove 31.

[0029] The bottom end face of the shaft carrier 2 is connected to the stacking drive mechanism 5. The stacking drive mechanism 5 includes a stacking driver 51. The execution end of the stacking driver 51 is arranged in the horizontal direction and is directly or indirectly connected to the bottom end of the shaft carrier 2, so that it can push the shaft carrier 2 to move in the horizontal direction to realize the stacking action of the shaft carrier 2 on the ring.

[0030] In this embodiment, such as Figure 3 As shown, the stacking actuator 51 uses a thin cylinder, with its actuating end connected to a vertically oriented drive rod 52. The end of the drive rod 52, away from the stacking actuator 51, is fixed to the bottom end face of the shaft carrier 2. By constructing the drive rod 52, an indirect connection between the stacking actuator 51 and the shaft carrier 2 is achieved, allowing the stacking actuator 51 to be placed below the shaft carrier 2, thus preventing the large stacking actuator 51 from occupying the installation space of the nested actuator 4. When the stacking actuator 51 operates, the drive rod 52 drives the shaft carrier 2 to move, causing the stacking actuating end 211 to enter the ring groove 31, abutting against the ring at the end and pushing it towards the adjacent ring, achieving a tight stacking of multiple rings.

[0031] Furthermore, two sidewalls on the shaft carrier 2 perpendicular to the stacking execution end 211 are constructed as guide ends 212. The guide ends 212 slide in engagement with the guide portion 32 provided on the ring carrier 3, and the stacking driver 51 drives the shaft carrier 2 to move along the plane where the guide ends 212 are located via the drive rod 52.

[0032] like Figure 3 As shown, the arrangement of the drive rod 52 causes the stacking driver 51, the shaft carrier 2 and the drive rod 52 to form a C-shape. This causes the frictional force between the shaft carrier 2 and the ring carrier 3 to generate a torque around the stacking driver 51 when the stacking driver 51 is activated. This torque causes the drive rod 52 and the shaft carrier 2 fixed to it to tilt, which in turn causes the stacking execution end 211 to not be aligned with the ring in the ring groove 31.

[0033] To solve this problem, in a preferred embodiment of this application, combined with Figure 5 and Figure 6 As shown, the guide portion 32 includes a first guide wall 321 for the guide end 212 to slide against, and a second guide wall 322 extending along the plane of the top of the axle carrier 2 and capable of fitting against it. The second guide wall 322 is used to limit the tilting of the axle carrier 2, so that the axle carrier 2 always maintains a horizontal posture.

[0034] In order to accommodate nested operations with shafts having larger length dimensions, in a preferred embodiment of this application, such as... Figure 2As shown, the shaft carrier 2 is configured as a split structure, including a first carrier 21 and a second carrier 22. The overlapping execution end 211, the guide end 212, and the drive rod 52 are all mounted on the first carrier 21. The second carrier 22 is positioned between the first carrier 21 and the nested driver 4, primarily used to provide auxiliary support for shafts with larger length dimensions, preventing the shaft from being unstablely supported due to its center of gravity exceeding the shaft-carrying groove 213 of the first carrier 21.

[0035] Furthermore, to avoid interference from the second carrier 22 itself on the movement of the nested driver 4, resulting in insufficient shaft insertion stroke, [further details are needed]. Figure 2 and Figure 7 As shown, the second carrier 22 is also connected to a lifting driver 23, which enables the shaft to be lowered under the action of the lifting driver 23 after the shaft is pushed by the nested driver 4 to the point where the center of gravity is located in the shaft slot 213 of the first carrier 21, thereby avoiding the movement path of the nested driver 4 and allowing the shaft to be fully pushed into place.

[0036] The nested actuator 4 is configured as a push rod driven by an electric cylinder. The push rod has a diameter smaller than that of the shaft-carrying groove 213, allowing it to pass through the shaft-carrying groove 213 and push the shaft toward the ring. Furthermore, the end of the push rod away from the electric cylinder has a groove that conforms to the end of the shaft to achieve precise engagement of the shaft.

[0037] In this application, the ring has an opening, and a protruding structure is formed on the outer edge surface near the opening. During assembly with the shaft, it is necessary to ensure that the rotation angles of the openings / protruding structures in the multiple rings are consistent, that is, the positioning features in the multiple rings are aligned.

[0038] To achieve this objective, in a preferred embodiment of this application, reference is made to... Figure 2 and Figure 8 As shown, a pair of leveling clamps 6 are provided on both sides of the opening at the top of the corresponding ring groove 31. The bottom of the clamping end of the leveling clamp 6 is provided with a leveling inclined surface 61. During the closing process of the leveling clamp 6, the pair of leveling inclined surfaces 61 can abut against the protruding structure on the outer edge of the skewed ring, and through the protruding structure, the opening of the ring moves upward until the pair of leveling clamps 6 close, uniformly limiting the rotation angle of the protruding parts of multiple rings, ensuring that the positioning features of each ring are aligned.

[0039] In addition, such as Figure 1 and Figure 9As shown, a capping mechanism 7 is also provided, which includes a capping cover 71 and a capping cover driver 72. The capping cover 71 can perform swinging and lifting actions under the drive of the capping cover driver 72. In the initial state, the capping cover 71 is raised and swings to a position away from the ring groove 31. When the ring and shaft are both placed in the corresponding ring groove 31 and shaft groove 213, the capping cover driver 72 drives the capping cover 71 to swing directly above the ring groove 31 and shaft groove 213, and then lowers to cover the ring groove 31 and shaft groove 213, forming a circumferentially closed assembly channel to prevent the shaft or ring from jumping out or deviating during the pushing and nesting process.

[0040] During work: Step 1: Place multiple rings horizontally into the ring carrier groove 31 of the ring carrier 3. Then, the straightening clamp 6 moves, and its straightening inclined surface 61 abuts against the protrusion at the outer edge of the ring. During the closing process, the rotation angle of the protrusion structure on the multiple rings is uniformly limited, so that each ring maintains the same rotation angle.

[0041] Step 2: The stacking drive mechanism 5's stacking actuator 51 actuates, driving the first carrier 21 to slide along the guide portion 32 via the drive rod 52. The guide end 212 slides in contact with the first guide wall 321, and the top surface of the first carrier 21 slides in contact with the second guide wall 322, ensuring smooth movement. The stacking execution end 211 extends into the ring groove 31, abutting against the ring located at the end and pushing it towards the adjacent ring, causing multiple rings to be closely arranged.

[0042] Step 3: The lifting drive 23 raises the second carrier 22 until it is flush with the first carrier 21. The operator or the automatic feeding mechanism places the shaft into the shaft slot 213 of the first carrier 21 and the second carrier 22. Then, the cap drive 72 drives the cap 71 to descend, covering the openings at the top of the ring slot 31 and the shaft slot 213, thus creating a closed assembly channel.

[0043] Step 4: The actuator of the nested driver 4 moves and abuts against the end of the shaft; after ensuring that the center of gravity of the shaft moves into the shaft-carrying groove 213 of the first carrier 21, that is, when the first carrier 21 can independently support the shaft, the lifting driver 23 drives the second carrier 22 to descend and avoid a position, so that the actuator of the nested driver 4 can continue to push the shaft until it reaches the preset nesting position with multiple rings.

[0044] Example 2

[0045] An oil injection assembly device, in addition to the nesting device described in Embodiment 1, also includes, as... Figure 10 The oil injection device 200 shown.

[0046] When the oil injection assembly equipment of this embodiment is working, the oil injection device 200 first pre-injects oil into multiple rings, and then transfers the oiled rings to the ring carrier 3 of the nesting device, and completes the nesting assembly of the shaft and rings according to the nesting method described in Embodiment 1.

[0047] Specifically, the oil injection device 200 includes an oil injection base 210, an oil injection fixture 220, and an oil gun 230. The oil injection fixture 220 has an oil injection groove 270, which is similar in structure to the ring carrier groove 31, both used for coaxial placement of multiple rings. The oil gun 230 is connected to an external oil supply device, and an oil gun driver 240 is connected to its bottom. Driven by the oil gun driver 240, the nozzle of the oil gun 230 extends into the oil injection groove 270 and penetrates the inner holes of multiple rings, coating the inner walls of the rings with oil through radially distributed oil outlets on the nozzle. In this embodiment, the oil gun driver 240 is a cylinder.

[0048] A cover clamp 250 is provided at the opening at the top of the oil filling tank 270. A pair of cover clamps 250 close the top opening of the oil filling tank 270 by clamping action, which is used to confine the ring in the oil filling tank 270 during the oil filling process, and at the same time prevent the oil from splashing or overflowing during the oil filling process.

[0049] In a preferred embodiment of this application, the oil injection fixture 220 is configured with multiple different specifications, each specification of which can accommodate a different number of rings. Multiple oil injection fixtures 220 of different specifications are arranged in a straight line parallel to the oil injection base 210. The oil gun driver 240 is connected to the oil injection base 210 via an oil gun moving module 260. The oil gun moving module 260 consists of an electric cylinder and a slider, which can drive the oil gun driver 240 to reciprocate along the arrangement direction of the multiple oil injection fixtures 220, thereby driving the oil gun 230 to move to the corresponding oil injection fixture 220 according to the specific number of rings.

[0050] The above embodiments are merely illustrative of the technical concept and features of the present invention, intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly, and should not be construed as limiting the scope of protection of the present invention. It will be apparent to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of the present invention is defined by the appended claims rather than the foregoing description, and thus all changes falling within the meaning and scope of the equivalents of the claims are intended to be included within the present invention.

Claims

1. A nested device, characterized in that, Used for nesting shafts with multiple rings; includes a nesting base (1), on which are provided: A shaft carrier (2) and a ring carrier (3) are respectively provided with a shaft-carrying groove (213) and a ring-carrying groove (31) for mounting the shaft and multiple rings; Nested driver (4) is located on the side of the shaft carrier (2) away from the ring carrier (3), and pushes the shaft toward the ring to engage with the ring through the actuating end that can penetrate the shaft carrier (2); The shaft carrier (2) has a stacked execution end (211) on one end face away from the nested driver (4), and two walls perpendicular to the stacked execution end (211) are constructed as guide ends (212), which slide in cooperation with the ring carrier (3); The bottom surface of the shaft carrier (2) is connected to the stacking drive mechanism (5). The stacking execution end (211) can run along the plane where the guide end (212) is located under the drive of the stacking drive mechanism (5), abut against the ring at the end and push it toward the adjacent ring.

2. The nesting device according to claim 1, characterized in that, The overlapping execution end (211) is formed by the extension of the carrier shaft groove (213) toward the carrier ring groove (31); the outer wall of the solid part that meets the extension requirements is set in the same shape as the inner wall of the carrier ring groove (31), and the overlapping end can enter the carrier ring groove (31) under the drive of the overlapping driver (51).

3. The nesting device according to claim 2, characterized in that, The stacking drive mechanism (5) includes a stacking driver (51), the execution end of which is connected to a drive rod (52) with a vertical axis, and the end of the drive rod (52) away from the stacking driver (51) is fixed to the bottom surface of the shaft carrier (2). A guide portion (32) is provided on the ring carrier (3). The guide portion (32) has a first guide wall (321) for the guide end (212) to slide against, and a second guide wall (322) extending parallel to the top surface of the shaft carrier (2) and able to fit against it.

4. The nesting device according to claim 3, characterized in that, The shaft carrier (2) includes a first carrier (21) and a second carrier (22), the overlapping execution end (211) is disposed on the first carrier (21), and the second carrier (22) is disposed between the first carrier (21) and the nested driver (4); The second vehicle (22) is connected to a lifting driver (23) and can descend under the drive of the lifting driver (23) to move away from the movement path of the nested driver (4).

5. The nesting device according to claim 4, characterized in that, A pair of regular clamps (6) are provided on both sides of the top opening of the corresponding ring groove (31). The bottom of the clamping end of the regular clamp (6) is provided with a regular inclined surface (61). The pair of regular inclined surfaces (61) abut against the protrusion on the outer edge of any ring as the regular clamp (6) clamps, and limit the rotation angle of the protrusion when the pair of regular clamps (6) are closed.

6. The nesting device according to claim 5, characterized in that, A pressure cap mechanism (7) is provided, which includes a pressure cap (71) and a pressure cap driver (72). The pressure cap (71) is placed on the ring groove (31) and the shaft groove (213) under the drive of the pressure cap driver (72), so that the ring groove (31), the shaft groove (213) and the pressure cap (71) form a closed assembly channel for assembling the shaft and the ring.

7. A nesting method, employing the nesting device as described in claim 6, characterized in that, Includes the following steps: Step 1: Place multiple rings into the ring carrier (3) with the axis horizontal. Then, the straightening clamp (6) moves to abut against the protrusion at the outer edge of the ring, so that the multiple rings maintain the same rotation angle. Step 2: The stacking drive mechanism (5) drives the first shaft carrier (2) to slide along the length direction of the guide (32), so that the stacking execution end (211) can extend into the ring groove (31) and push the ring at the end toward the adjacent ring. Step 3: Raise the second axle carrier (2) and mount the axle on the first axle carrier (2) and the second axle carrier (2). Then, the cap (71) is driven by the cap driver (72) to cover the openings at the top of the ring groove (31) and the shaft groove (213) to form an assembly channel. Step 4: The actuator of the nested driver (4) moves and abuts against the end of the shaft; at the same time, the second shaft carrier (2) descends to avoid the position, so that the nested driver (4) can send the shaft into the carrier ring groove (31) along the assembly channel and nest with multiple rings.

8. An oil injection assembly device, comprising the nesting device as described in claim 6, characterized in that, It also includes an oiling device (200), which includes an oiling base (210), an oiling fixture (220), and an oil gun (230); the oiling fixture (220) has an oiling groove (270) for placing multiple rings; the oil gun (230) corresponds to the end of the oiling groove (270) and can be inserted into the oiling groove (270) and coated with oil by the oil gun driver (240).

9. The oil injection assembly equipment according to claim 8, characterized in that, A cover clamp (250) is provided at the opening at the top of the oil filling tank (270), and a pair of cover clamps (250) close the top opening of the oil filling tank (270) by clamping action.

10. An oil injection assembly device according to claim 9, characterized in that, The oil injection fixture (220) is parallel to the oil injection base (210) in multiple ways. The oil gun driver (240) is connected to the oil injection base (210) through the oil gun moving module (260). The oil gun moving module (260) can drive the oil gun driver (240) to move along the arrangement direction of the multiple oil injection fixtures (220).

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