Rotor assembly press

Abstract

The present application belongs to the technical field of rotor assembly, and discloses a rotor assembly press. The rotor assembly press comprises a carrier mechanism and a pressing mechanism. The carrier mechanism comprises a mounting frame, a rotor support assembly, a lower bearing support assembly and an end cover support assembly. The rotor support assembly is used for carrying and positioning a rotor. The lower bearing support assembly is arranged below the rotor support assembly and is used for carrying and positioning a lower bearing so that the lower bearing is aligned with a rotating shaft of the rotor. The end cover support assembly is arranged above the rotor support assembly and is used for carrying and positioning an upper end cover. The pressing mechanism is arranged above the carrier mechanism and comprises a plurality of pressing head assemblies. The pressing head assemblies are movable relative to the carrier mechanism so that corresponding pressing head assemblies are aligned with the rotor. The plurality of pressing head assemblies can press and assemble a lower bearing, an upper end cover, an upper bearing, a circlip and an oil seal on the rotor, respectively. The rotor assembly press can automatically assemble a rotor assembly, and improves the assembly efficiency and assembly quality stability of the rotor assembly.

Description

Technical Field

[0001] This invention relates to the field of rotor assembly technology, and more particularly to rotor assembly presses. Background Technology

[0002] As a device that converts electrical energy into driving torque, the electric motor is widely used in various fields. The rotor assembly is an important component of the electric motor, including parts such as the rotor, lower bearing, upper bearing, upper end cover, snap ring, and oil seal. The rotor is mainly composed of a shaft and an iron core winding. The lower bearing is sleeved on the lower end of the shaft, and the upper bearing, upper end cover, snap ring, and oil seal are sequentially sleeved on the upper end of the shaft.

[0003] Currently, the rotor shaft and core winding of the motor rotor are mainly assembled by machine pressing, achieving automation. However, the assembly process of parts such as the lower bearing, upper bearing, upper end cover, snap ring, and oil seal on the rotor shaft is mainly done manually, resulting in low assembly efficiency, high labor input, and inconsistent assembly quality.

[0004] Therefore, a rotor assembly press is urgently needed to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a rotor assembly press that can automatically assemble rotor components, thereby improving the assembly efficiency and assembly quality stability of rotor components.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A rotor assembly press is used to assemble a lower bearing, an upper end cover, an upper bearing, a snap ring, and an oil seal onto a rotor. The rotor assembly press includes:

[0008] The carrier mechanism includes a mounting frame and a rotor support assembly, a lower bearing support assembly, and an end cover support assembly disposed on the mounting frame. The rotor support assembly is used to support and position the rotor. The lower bearing support assembly is disposed below the rotor support assembly and is used to support and position the lower bearing so that the lower bearing is aligned with the rotor shaft. The end cover support assembly is disposed above the rotor support assembly and is used to support and position the upper end cover.

[0009] A pressing mechanism is disposed above the carrier mechanism. The pressing mechanism includes multiple pressing head assemblies. The multiple pressing head assemblies are movable relative to the carrier mechanism so that the corresponding pressing head assembly is aligned with the rotor. The multiple pressing head assemblies are capable of pressing the lower bearing, the upper end cover, the upper bearing, the snap ring, and the oil seal onto the rotor respectively.

[0010] As an optional solution, the pressing mechanism further includes:

[0011] A pressing drive is disposed directly above the rotor support assembly. The pressing drive is used to press the pressure head assembly, which is aligned with the rotor, against the rotor.

[0012] As an optional solution, the pressure head assembly includes a pressure head and an auxiliary plate. The auxiliary plate is connected to the upper end of the pressure head. A dovetail groove is provided on the side of the auxiliary plate away from the pressure head. The dovetail groove passes through the auxiliary plate along the arrangement direction of the plurality of pressure heads. The lower end of the pressing drive can be inserted into the dovetail groove.

[0013] As an optional solution, the pressing mechanism further includes:

[0014] A mounting plate is provided on which multiple pressure head assemblies are slidably disposed. The multiple pressure head assemblies are arranged in a horizontal direction. A first guide rail is provided on the mounting plate, and the pressure head assemblies can slide up and down along the first guide rail.

[0015] As an optional feature, the rotor assembly press further includes:

[0016] A pressure head switching mechanism is configured to drive the pressure head assembly to move horizontally relative to the carrier mechanism so that different pressure head assemblies are aligned with the rotor.

[0017] As an optional solution, the pressure head switching mechanism includes:

[0018] Switch driver;

[0019] The second guide rail extends horizontally, and the mounting plate is slidably connected to the second guide rail. The switching drive unit can drive the mounting plate to slide along the second guide rail.

[0020] As an optional solution, the lower bearing support assembly includes:

[0021] A lower bearing support block, wherein the upper end of the lower bearing support block is provided with a contour groove, and the lower bearing can be confined within the contour groove;

[0022] The rotating shaft positioning column is slidably disposed within the lower bearing support block. The upper end of the rotating shaft positioning column is provided with a positioning center, and the lower end of the rotor shaft is provided with a groove, into which the positioning center can be inserted.

[0023] A top-mounted drive component, the drive end of which is connected to the lower end of the rotating shaft positioning column to drive the rotating shaft positioning column to move up and down.

[0024] As an optional solution, the rotor support assembly includes:

[0025] A rotor support ring, wherein the inner ring of the rotor support ring is concentrically arranged with the shaft positioning post, the rotor can be placed inside the rotor support ring, and the rotor support ring is used to support and limit the rotor;

[0026] Multiple sliding columns are spaced apart on the lower side of the rotor support ring, and the sliding columns are slidably mounted on the mounting frame.

[0027] The support ring drive is configured to drive the slide column to slide up and down along the mounting bracket.

[0028] As an optional solution, the end cap support assembly includes:

[0029] An end cap support frame is used to support and position the upper end cap.

[0030] Multiple support columns are spaced apart on the underside of the end cap support frame. The mounting frame is provided with clearance holes, through which the support columns pass. The support columns can move downward along the clearance holes so that the end cap support frame can move downward to avoid the upper end of the rotor. A boss is provided on the inner wall of the clearance hole. When the support column moves upward to a height above the boss, the support column is rotated so that it is supported on the boss.

[0031] As an optional feature, the rotor assembly press further includes:

[0032] An upper guide sleeve is provided, which can be fitted onto the upper end of the rotor shaft. The upper bearing, the oil seal, and the corresponding pressure head assembly are fitted onto the shaft along the upper guide sleeve.

[0033] The lower guide sleeve can be fitted onto the lower end of the rotating shaft, and the lower bearing can be fitted onto the rotating shaft along the lower guide sleeve.

[0034] Beneficial effects:

[0035] The rotor assembly press proposed in this invention involves the following steps during assembly: First, the rotor is positioned on a rotor support assembly. Then, the lower bearing is positioned on a lower bearing support assembly, aligning it with the lower end of the rotor shaft. The press head assembly is moved until its corresponding component aligns with the rotor, and then pressed down to press the lower bearing onto the lower end of the shaft. Next, the upper end cover is positioned on an end cover support assembly, and the lower bearing is fitted onto the upper end of the shaft. The press head assembly is moved until its corresponding component aligns with the rotor, and then pressed down to press the lower bearing and upper end cover onto the upper end of the shaft. Then, a retaining ring is fitted onto the upper end of the shaft. The press head assembly is moved until its corresponding component aligns with the rotor, and then pressed down to press the retaining ring onto the upper end of the shaft. Finally, an oil seal is fitted onto the upper end of the shaft. The press head assembly is moved until its corresponding component aligns with the rotor, and then pressed down to press the oil seal onto the upper end of the shaft. This rotor assembly press enables automated assembly of rotor components, improving assembly efficiency and quality stability. Attached Figure Description

[0036] Figure 1 This is a cross-sectional structural schematic diagram of the rotor assembly provided in an embodiment of the present invention;

[0037] Figure 2 This is a schematic diagram of the rotor assembly press provided in an embodiment of the present invention;

[0038] Figure 3 yes Figure 2 Enlarged structural diagram at point A in the middle;

[0039] Figure 4 This is a schematic diagram of the structure of the vehicle mechanism provided in an embodiment of the present invention;

[0040] Figure 5 This is a schematic diagram of the pressing mechanism and the pressure head switching mechanism provided in the embodiment of the present invention.

[0041] In the picture:

[0042] 100. Rotor assembly; 10. Lower bearing; 20. Upper end cover; 30. Upper bearing; 40. Snap ring; 50. Oil seal; 60. Rotor; 601. Shaft; 602. Groove; 603. Conical groove;

[0043] 1. Carrier mechanism; 11. Mounting bracket; 111. Upper mounting plate; 1111. Sliding hole; 112. Lower mounting plate; 113. Column; 114. Intermediate mounting plate; 12. Rotor support assembly; 121. Rotor support ring; 122. Sliding column; 123. Support ring drive component; 13. Lower bearing support assembly; 131. Lower bearing support block; 1311. Contour groove; 132. Rotary shaft positioning column; 1321. Positioning center; 133. Center drive component; 14. End cover support assembly; 141. End cover support frame; 142. Support column;

[0044] 2. Pressing mechanism; 21. Pressing head assembly; 211. Pressing head; 2111. First pressing head; 21111. Center point; 2112. Second pressing head; 2113. Third pressing head; 21131. Connecting head; 21132. Claw; 212. Auxiliary plate; 2121. Dovetail groove; 22. Pressing drive component; 221. Pressing cylinder; 222. Pressing block; 23. Mounting plate; 231. First guide rail;

[0045] 3. Pressure head switching mechanism; 31. Switching drive component; 32. Second guide rail;

[0046] 4. Upper guide sleeve;

[0047] 6. Base plate; 61. Clearance hole; 7. Base upright plate;

[0048] 8. Lateral movement drive mechanism; 81. Lateral movement drive component; 82. Third guide rail; 83. Limit block. Detailed Implementation

[0049] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0050] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0051] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0052] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0053] like Figure 1 As shown, a rotor assembly 100 includes a rotor 60, a lower bearing 10, an upper end cover 20, an upper bearing 30, a snap ring 40, and an oil seal 50. The rotor 60 mainly consists of a shaft 601 and an iron core winding. The lower bearing 10 is installed at the lower end of the shaft 601, while the upper bearing 30, upper end cover 20, snap ring 40, and oil seal 50 are installed at the upper end of the shaft 601. Currently, the shaft 601 and iron core winding of the motor rotor 60 are mainly assembled by machine pressing, achieving automation. However, the assembly process of components such as the lower bearing 10, upper bearing 30, upper end cover 20, snap ring 40, and oil seal 50 on the shaft 601 is mainly done manually, resulting in low assembly efficiency, high labor input, and unstable assembly quality.

[0054] To solve the above problems, such as Figure 2As shown, this embodiment provides a rotor assembly press for assembling components such as a lower bearing 10, an upper end cover 20, an upper bearing 30, a snap ring 40, and an oil seal 50 onto a rotor 60. Specifically, the rotor assembly press includes a carrier mechanism 1 and a pressing mechanism 2. The carrier mechanism 1 includes a mounting frame 11 and a rotor support assembly 12, a lower bearing support assembly 13, and an end cover support assembly 14 disposed on the mounting frame 11. The rotor support assembly 12 is used to support and position the rotor 60. The lower bearing support assembly 13 is disposed below the rotor support assembly 12 and is used to support and position the lower bearing 10 so that the lower bearing 10 is aligned with the shaft 601 of the rotor 60. The end cover support assembly 14 is disposed above the rotor support assembly 12 and is used to support and position the upper end cover 20. The pressing mechanism 2 is located above the carrier mechanism 1. The pressing mechanism 2 includes multiple pressing head assemblies 21. The multiple pressing head assemblies 21 can move relative to the carrier mechanism 1 so that the corresponding pressing head assembly 21 is aligned with the rotor 60. The multiple pressing head assemblies 21 can press the lower bearing 10, the upper end cover 20, the upper bearing 30, the snap ring 40 and the oil seal 50 onto the rotor 60 respectively.

[0055] During assembly, the rotor 60 is positioned on the rotor support assembly 12, and the lower bearing 10 is positioned on the lower bearing support assembly 13, aligning the lower bearing 10 with the lower end of the rotor shaft 601. The pressure head assembly 21 is moved so that the corresponding pressure head assembly 21 aligns with the rotor 60, and then the pressure head assembly 21 is pressed down to press the lower bearing 10 onto the lower end of the rotor shaft 601. Next, the upper end cover 20 is positioned on the end cover support assembly 14, and the lower bearing 10 is fitted onto the upper end of the rotor shaft 601. The pressure head assembly 21 is moved so that the corresponding pressure head assembly 21 aligns with the rotor 60, and then pressed down to press the lower bearing 10 and the upper end cover 20 onto the upper end of the rotor shaft 601. Finally, the retaining ring 40 is fitted onto the upper end of the rotor shaft 601. The pressure head assembly 21 is moved so that the corresponding pressure head assembly 21 aligns with the rotor 60, and then pressed down to press the retaining ring 40 onto the upper end of the rotor shaft 601. Finally, the oil seal 50 is fitted onto the upper end of the rotating shaft 601. The pressure head assembly 21 is moved so that the corresponding pressure head assembly 21 is aligned with the rotor 60, and then pressed down to press the oil seal 50 onto the upper end of the rotating shaft 601. This rotor assembly press realizes the automated assembly of the rotor assembly 100, improving the assembly efficiency and assembly quality stability of the rotor assembly 100.

[0056] Furthermore, such as Figure 2 As shown, the rotor assembly press also includes a base plate 6 and a base upright plate 7. The base plate 6 is horizontally arranged, and the base upright plate 7 is vertically arranged on the base plate 6. The carrier mechanism 1 is arranged on the base plate 6, and the pressing mechanism 2 is arranged on the base upright plate 7, so that the pressing mechanism 2 is located at a higher position, specifically above the carrier mechanism 1, thereby enabling the pressing operation of the rotor 60 and various components to be performed from above.

[0057] Furthermore, such as Figure 2 As shown, the rotor assembly press also includes a transverse drive mechanism 8, which is mounted on the base plate 6 and is used to drive the carrier mechanism 1 to move left and right, so that the carrier mechanism 1 moves back and forth between the assembly station at the left end and the loading / unloading station at the right end. During operation, the rotor 60 to be assembled is placed on the carrier mechanism 1 at the loading / unloading station, and then the transverse drive mechanism 8 drives the carrier mechanism 1 to the assembly station. The lower bearing 10, upper end cover 20, upper bearing 30, snap ring 40 and oil seal 50 and other parts are loaded by manual or robotic arms to complete the assembly of the rotor assembly 100. Then the carrier mechanism 1 is moved to the loading / unloading station to remove the assembled rotor assembly 100 and continue to the next round of assembly operations.

[0058] Specifically, such as Figure 2 As shown, the lateral movement drive mechanism 8 includes a lateral movement drive component 81 and two third guide rails 82. The two third guide rails 82 are arranged parallel to each other and extend in the left-right direction. The carrier mechanism 1 is slidably mounted on the third guide rails 82. The fixed end of the lateral movement drive component 81 is mounted on the base plate 6, and the driving end of the lateral movement drive component 81 is connected to the carrier mechanism 1 to drive the carrier mechanism 1 to slide left and right along the third guide rails 82. The lateral movement drive component 81 can be a lead screw module.

[0059] Furthermore, in order to ensure precise alignment between the rotor 60 and the pressure head assembly 21, the position of the carrier mechanism 1 when it moves to the left end needs to be precisely positioned. Therefore, as follows... Figure 2 As shown, the lateral drive mechanism 8 also includes a limiting block 83, which limits the travel range of the carrier mechanism 1 to the left. The limiting block 83 is disposed between the two third guide rails 82 and located at the left end of the third guide rails 82. When the carrier mechanism 1 moves to the left, it stops moving when it comes into contact with the limiting block 83. At this time, the rotor 60 on the carrier mechanism 1 is just aligned with the pressure head assembly 21.

[0060] Optionally, such as Figure 3 As shown, the mounting bracket 11 includes an upper mounting plate 111 and a lower mounting plate 112, which are connected by multiple columns 113. The lower mounting plate 112 is slidably connected to the third guide rail 82, the lower bearing support assembly 13 is disposed on the lower mounting plate 112, and the end cap support assembly 14 is disposed on the upper mounting plate 111.

[0061] An intermediate mounting plate 114 is provided between the upper mounting plate 111 and the lower mounting plate 112. There are two intermediate mounting plates 114, which are arranged side by side. The end cap support assembly 14 is provided on the intermediate mounting plate 114.

[0062] Specifically, such as Figure 3 and Figure 4 As shown, the lower bearing support assembly 13 includes a lower bearing support block 131, a shaft positioning post 132, and a center drive member 133. The upper end of the lower bearing support block 131 is provided with a contour groove 1311, and the lower bearing 10 can be confined within the contour groove 1311. The shaft positioning post 132 is slidably disposed within the lower bearing support block 131. The upper end of the shaft positioning post 132 is provided with a positioning center 1321. The lower end of the shaft 601 of the rotor 60 is provided with a groove 602, and the positioning center 1321 can be inserted into the groove 602. The driving end of the center drive member 133 is connected to the lower end of the shaft positioning post 132 to drive the shaft positioning post 132 to move up and down. The top drive component 133 can be a cylinder. The fixed end of the cylinder is connected to the lower side of the lower mounting plate 112. The base plate 6 is provided with a clearance hole 61. The top drive component 133 passes through the clearance hole 61 and can move left and right in the clearance hole 61 with the lower mounting plate 112.

[0063] The lower bearing 10 is positioned in the contour groove 1311 of the lower bearing support block 131. The center drive 133 drives the positioning center 1321 to move upward and insert it into the groove 602 at the lower end of the rotating shaft 601, thus limiting the rotation shaft 601. The rotor support assembly 12 and the positioning center 1321 work together to restrict the rotor 60 from moving.

[0064] Furthermore, such as Figure 3 and Figure 4 As shown, the rotor support assembly 12 includes a rotor support ring 121, multiple sliding pillars 122, and a support ring drive 123. The inner ring of the rotor support ring 121 is concentrically arranged with the shaft positioning post 132, allowing the rotor 60 to be placed within the rotor support ring 121. The rotor support ring 121 is used to support and limit the movement of the rotor 60. Multiple sliding pillars 122 are spaced apart on the lower side of the rotor support ring 121 and slide vertically on the mounting bracket 11. Specifically, the sliding pillars 122 are slidably mounted on the intermediate mounting plate 114. The support ring drive 123 is used to drive the sliding pillars 122 to slide vertically along the intermediate mounting plate 114. The support ring drive 123 can specifically be a cylinder.

[0065] When the rotor 60 is placed on the rotor support assembly 12, the support ring drive 123 drives the sliding column 122 to slide up and down. The rotor support ring 121 is lifted upwards, and the center drive 133 drives the shaft positioning column 132 to move upwards, lifting the positioning center 1321 upwards and inserting it into the groove 602 of the shaft 601. At this time, the pressing mechanism 2 is activated to press against the rotor 60, causing the rotor 60 to overcome the supporting forces of the center drive 133 and the support ring drive 123 and move downwards, inserting into the lower bearing 10 on the lower bearing support block 131, thus assembling the lower bearing 10 on the rotor 60.

[0066] Furthermore, such as Figure 3 As shown, the end cap support assembly 14 includes an end cap support frame 141 and multiple support columns 142. The end cap support frame 141 is used to support and position the upper end cap 20. The multiple support columns 142 are spaced apart on the lower side of the end cap support frame 141. The mounting frame 11 is provided with through holes 1111, which are specifically located on the upper mounting plate 111. The support columns 142 pass through the through holes 1111 and can move downward along the through holes 1111 to move the end cap support frame 141 downward, thereby avoiding the upper end of the rotor 60. A boss is provided on the inner wall of the through hole 1111. When the support column 142 moves upward to a height above the boss, the support column 142 is rotated so that the support column 142 is supported on the boss.

[0067] When assembling components other than the upper end cap 20, to prevent the end cap support assembly 14 from obstructing the loading or pressing of other components, the end cap support assembly 14 can be rotated so that the support column 142 is aligned with the hole 1111. Then, the support column 142 is pressed down, causing the end cap support frame 141 to descend, thus providing clearance for the installation of other components. When assembling the upper end cap 20, the end cap support frame 141 is pulled upward along the through hole 1111 until the lower end of the support column 142 is higher than the boss. Then, the end cap support assembly 14 is rotated so that the support column 142 is supported on the boss, thereby fixing the end cap support frame 141 in a higher position. After the upper end cap 20 is placed on the end cap support frame 141, it is higher than the upper surface of the rotating shaft 601 for the next pressing operation.

[0068] For further information, please refer back to [link / reference]. Figure 2 The pressing mechanism 2 also includes a pressing drive 22, which is located directly above the rotor support assembly 12. The pressing drive 22 is used to press the pressure head assembly 21, which is aligned with the rotor 60, against the rotor 60.

[0069] Specifically, the pressing drive component 22 includes a pressing cylinder 221 and a pressing block 222. The fixed end of the pressing cylinder 221 is connected to the base plate 7, and the driving end of the pressing cylinder 221 is connected to the pressing block 222. The pressing block 222 is preferably located directly above the positioning tip 1321 so that the pressing force applied by the pressing block 222 to the pressing head 211 is on the same straight line as the upward supporting force of the positioning tip 1321, thereby enabling more stable pressing of the rotor 60 and its components.

[0070] Furthermore, such as Figure 2As shown, the pressure head assembly 21 includes a pressure head 211 and an auxiliary plate 212. The auxiliary plate 212 is connected to the upper end of the pressure head 211. A dovetail groove 2121 is provided on the side of the auxiliary plate 212 away from the pressure head 211. The dovetail groove 2121 passes through the auxiliary plate 212 along the arrangement direction of the multiple pressure heads 211 (i.e., the left and right direction). The lower end of the pressing drive member 22 can be inserted into the dovetail groove 2121 to realize the snap-fit ​​connection between the pressing block 222 and the pressure head 211.

[0071] Based on the structural characteristics of the components to be press-fitted, three types of press heads 211 are required in this embodiment to ensure the pressing effect. For example... Figure 5 As shown, the three pressure heads 211 are the first pressure head 2111, the second pressure head 2112, and the third pressure head 2113, arranged sequentially from right to left. The first pressure head 2111 is used to press-fit the lower bearing 10. The first pressure head 2111 is cylindrical, with a tip 21111 at its lower end and a tapered groove 603 at the upper end of the rotating shaft 601. When the first pressure head 2111 is pressed down, the tip 21111 is inserted into the tapered groove 603, cooperating with the positioning tip 1321 below to position the rotor 60, ensuring that the rotor 60 does not undergo radial displacement when the first pressure head 2111 is pressed down.

[0072] The second pressure head 2112 is used to press-fit the upper end cover 20, the upper bearing 30, and the oil seal 50. The second pressure head 2112 is configured as a stepped sleeve. The upper end cover 20 and the upper bearing 30 are pressed-fitted together. The upper bearing 30 is sleeved on the rotating shaft 601, and the upper end cover 20 is sleeved on the outside of the upper bearing 30, with the thickness of the upper end cover 20 being greater than that of the upper bearing 30. Therefore, during pressing, the lower end face of the second pressure head 2112 presses against the upper bearing 30, and the slightly larger-diameter stepped end face presses against the upper end cover 20. The second pressure head 2112 presses down, simultaneously pressing the upper bearing 30 and the upper end cover 20 onto the rotating shaft 601. Then, the retaining ring 40 is pressed-fitted. After the retaining ring 40 is pressed in place, the second pressure head 2112 is used again to press the oil seal 50 onto the rotating shaft 601 with its lower end face.

[0073] The third pressure head 2113 is used to press the retaining ring 40. Since the retaining ring 40 is a thin-walled part, if a sleeve structure is used, very high machining and installation accuracy is required to ensure that the third pressure head 2113 presses the retaining ring 40. Therefore, in this embodiment, the third pressure head 2113 is configured to include a connector 21131 and three claws 21132. The three claws 21132 are disposed on the outer periphery of the connector 21131, and their lower ends extend to the bottom of the connector 21131. The lower ends of the claws 21132 are bent outward so that the space enclosed by the three claws 21132 forms a flared mouth. The flared mouth has a guiding function, thereby facilitating its placement on the rotating shaft 601. The upper end of the pawl 21132 is pivotally connected to the connector 21131. A spring is installed between the middle part of the pawl 21132 and the connector 21131. Under the tension of the spring, the three pawls 21132 always maintain an inward contraction force. When the third pressure head 2113 presses against the rotating shaft 601, the rotating shaft 601 is inserted between the three pawls 21132. Under the action of the spring, the three pawls 21132 tighten inward and hug the rotating shaft 601, thereby ensuring that the pawls 21132 can always be in contact with the retaining spring 40.

[0074] Furthermore, such as Figure 2 As shown, the pressing mechanism 2 also includes a mounting plate 23, on which multiple pressing head assemblies 21 are slidably disposed. These pressing head assemblies 21 are arranged horizontally (specifically, left-right). A first guide rail 231 is provided on the mounting plate 23, allowing the pressing head assemblies 21 to slide up and down along the first guide rail 231. When there is no pressing task, the pressing head assembly 21 is confined to the upper end of the first guide rail 231. When a pressing task is required, the pressing head assembly 21 moves below the pressing drive member 22 and, under the pressure of the pressing drive member 22, moves downward along the first guide rail 231 to press the rotor 60 and corresponding components. After pressing is completed, the pressing drive member 22 drives the corresponding pressing head assembly 21 to slide upward along the first guide rail 231 to reset.

[0075] There are no restrictions on how the pressure head assembly 21 is positioned at the upper end of the first guide rail 231. For example, a limiting cylinder can be installed on the mounting plate 23, with the driving end of the limiting cylinder connected to a limiting rod. A limiting hole is provided on the auxiliary plate 212. When the pressure head assembly 21 moves upward and resets, the limiting cylinder drives the limiting rod to extend and insert into the limiting hole, thereby limiting the downward sliding of the pressure head assembly 21 under the action of gravity.

[0076] Furthermore, such as Figure 2 As shown, the rotor assembly press also includes a pressure head switching mechanism 3, which drives the pressure head assembly 21 to move horizontally relative to the carrier mechanism 1, so that different pressure head assemblies 21 are aligned with the rotor 60. In this embodiment, the pressure head switching mechanism 3 drives the pressure head assembly 21 to move left and right.

[0077] Specifically, the pressure head switching mechanism 3 includes a switching drive 31 and a second guide rail 32. The second guide rail 32 extends in the left-right direction, and the mounting plate 23 is slidably connected to the second guide rail 32. The switching drive 31 can drive the mounting plate 23 to slide along the second guide rail 32, thereby causing the pressure head assembly 21 mounted on the mounting plate 23 to move left and right. The switching drive 31 can be a cylinder.

[0078] Because the upper and lower ends of the rotating shaft 601 are stepped shafts, jamming can easily occur when fitting the components. Therefore, the rotor assembly press also includes an upper guide sleeve 4 and a lower guide sleeve. The upper guide sleeve 4 can be fitted onto the upper end of the rotating shaft 601 of the rotor 60, and the upper bearing 30, oil seal 50, and corresponding pressure head 211 are fitted onto the rotating shaft 601 along the upper guide sleeve 4. The lower guide sleeve can be fitted onto the lower end of the rotating shaft 601, and the lower bearing 10 is fitted onto the rotating shaft 601 along the lower guide sleeve. The upper and lower guide sleeves serve as auxiliary tooling and can be removed from the rotating shaft 601 after the rotor assembly 100 is assembled and reused.

[0079] Assembly process of rotor assembly 100:

[0080] S1, in the initial state, the carrier mechanism 1 is located at the loading and unloading station on the right end. The support ring drive 123 lifts the rotor support ring 121, the top drive 133 lifts the lower bearing support block 131, and the end cover support frame 141 falls.

[0081] S2, the rotor 60 is placed in the rotor support ring 121 for positioning, the transverse drive mechanism 8 drives the carrier mechanism 1 to move to the left to the assembly station, the upper and lower guide sleeves are fitted on the lower end of the rotating shaft 601, and the upper and lower bearings 10 are placed in the contour groove 1311 of the lower bearing support block 131.

[0082] S3, start the pressure head switching mechanism 3, drive the first pressure head 2111 to move to engage with the pressure block 222, the pressing drive 22 drives the first pressure head 2111 downward to overcome the pressure of the support ring drive 123 and the top drive 133, so that the rotor support ring 121, the positioning top 1321 and the rotor 60 move down synchronously, press the lower bearing 10 into the rotating shaft 601, and the pressing drive 22 drives the first pressure head 2111 to move upward to reset.

[0083] S4, lift and rotate the end cap support frame 141 upwards so that the support column 142 is supported on the boss, place the upper end cap 20 on the end cap support frame 141, put the upper guide sleeve 4 on the upper end of the rotating shaft 601, and put the upper bearing 30 on the rotating shaft 601 along the upper guide sleeve 4.

[0084] S5, start the pressure head switching mechanism 3, drive the second pressure head 2112 to move to engage with the pressure block 222, the pressing drive 22 drives the second pressure head 2112 downward to press the upper end cover 20 and the upper bearing 30 onto the rotating shaft 601, and the pressing drive 22 drives the second pressure head 2112 to move upward to reset.

[0085] S6. Fit the snap ring 40 onto the upper end of the rotating shaft 601.

[0086] S7, start the pressure head switching mechanism 3, drive the third pressure head 2113 to move to engage with the pressure block 222, the pressing drive 22 drives the third pressure head 2113 downward, press the snap ring 40 onto the rotating shaft 601, and the pressing drive 22 drives the third pressure head 2113 to move upward and reset.

[0087] S8, fit the oil seal 50 onto the upper end of the rotating shaft 601.

[0088] S9, start the pressure head switching mechanism 3, drive the second pressure head 2112 to move to engage with the pressure block 222, the pressing drive 22 drives the second pressure head 2112 downward to press the oil seal 50 onto the rotating shaft 601, the pressing drive 22 drives the second pressure head 2112 upward to reset, and complete the assembly of the rotor assembly 100.

[0089] S10, move the carrier mechanism 1 to the right to the loading and unloading station, and remove the assembled rotor assembly 100 from the carrier mechanism 1.

[0090] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A rotor assembly press for assembling a lower bearing (10), an upper end cover (20), an upper bearing (30), a circlip (40) and an oil seal (50) to a rotor (60), characterized in that, The rotor assembly press includes: The carrier mechanism (1) includes a mounting frame (11) and a rotor support assembly (12), a lower bearing support assembly (13) and an end cover support assembly (14) disposed on the mounting frame (11). The rotor support assembly (12) is used to support and position the rotor (60). The lower bearing support assembly (13) is disposed below the rotor support assembly (12) and is used to support and position the lower bearing (10) so that the lower bearing (10) is aligned with the shaft (601) of the rotor (60). The end cover support assembly (14) is disposed above the rotor support assembly (12) and is used to support and position the upper end cover (20). A pressing mechanism (2) is disposed above the carrier mechanism (1). The pressing mechanism (2) includes multiple pressing head assemblies (21). The multiple pressing head assemblies (21) can move relative to the carrier mechanism (1) so that the corresponding pressing head assembly (21) is aligned with the rotor (60). The multiple pressing head assemblies (21) can press the lower bearing (10), the upper end cover (20), the upper bearing (30), the snap ring (40), and the oil seal (50) onto the rotor (60) respectively. The end cap support assembly (14) includes: End cap support frame (141), the end cap support frame (141) is used to support and position the upper end cap (20); Multiple support columns (142) are spaced apart on the underside of the end cap support frame (141). The mounting frame (11) is provided with through holes (1111). The support columns (142) pass through the through holes (1111). The support columns (142) can move downward along the through holes (1111) so that the end cap support frame (141) moves downward to avoid the upper end of the rotor (60). A boss is provided on the inner wall of the through holes (1111). When the support column (142) moves upward to a height above the boss, the support column (142) is rotated so that the support column (142) is supported on the boss.

2. The rotor assembly press of claim 1, wherein, The pressing mechanism (2) further includes: A pressing drive (22) is disposed directly above the rotor support assembly (12). The pressing drive (22) is used to press the pressure head assembly (21) aligned with the rotor (60) in the direction of the rotor (60).

3. The rotor assembly press of claim 2, wherein, The pressure head assembly (21) includes a pressure head (211) and an auxiliary plate (212). The auxiliary plate (212) is connected to the upper end of the pressure head (211). A dovetail groove (2121) is provided on the side of the auxiliary plate (212) away from the pressure head (211). The dovetail groove (2121) passes through the auxiliary plate (212) along the arrangement direction of the plurality of pressure heads (211). The lower end of the pressing drive (22) can be inserted into the dovetail groove (2121).

4. The rotor assembly press of claim 1, wherein, The pressing mechanism (2) further includes: Mounting plate (23), multiple pressure head assemblies (21) are slidably disposed on mounting plate (23), multiple pressure head assemblies (21) are arranged in a horizontal direction, a first guide rail (231) is provided on mounting plate (23), and the pressure head assembly (21) can slide up and down along the first guide rail (231).

5. The rotor assembly press of claim 4, wherein, The rotor assembly press also includes: The pressure head switching mechanism (3) is configured to drive the pressure head assembly (21) to move horizontally relative to the carrier mechanism (1) so that different pressure head assemblies (21) are aligned with the rotor (60).

6. The rotor assembly press of claim 5, wherein, The pressure head switching mechanism (3) includes: Switch the driver (31); The second guide rail (32) extends horizontally, and the mounting plate (23) is slidably connected to the second guide rail (32). The switching drive (31) can drive the mounting plate (23) to slide along the second guide rail (32).

7. The rotor assembly press of any of claims 1-6, wherein, The lower bearing support assembly (13) includes: The lower bearing support block (131) has a contour groove (1311) at its upper end, and the lower bearing (10) can be confined within the contour groove (1311). The rotating shaft positioning column (132) is slidably disposed in the lower bearing support block (131). The upper end of the rotating shaft positioning column (132) is provided with a positioning tip (1321), and the lower end of the rotating shaft (601) of the rotor (60) is provided with a groove (602). The positioning tip (1321) can be inserted into the groove (602). A top drive member (133) is connected to the lower end of the rotating shaft positioning column (132) to drive the rotating shaft positioning column (132) to move up and down.

8. The rotor assembly press of claim 7, wherein, The rotor support assembly (12) includes: The rotor support ring (121) has its inner ring concentrically arranged with the shaft positioning post (132). The rotor (60) can be placed inside the rotor support ring (121). The rotor support ring (121) is used to support and limit the rotor (60). Multiple sliding columns (122) are spaced apart on the lower side of the rotor support ring (121), and the sliding columns (122) are slidably mounted on the mounting frame (11); The support ring drive (123) is configured to drive the slide (122) to slide up and down along the mounting bracket (11).

9. The rotor assembly press of any of claims 1-6, wherein, The rotor assembly press also includes: The upper guide sleeve (4) can be sleeved on the upper end of the rotating shaft (601) of the rotor (60), and the upper bearing (30), the oil seal (50) and the corresponding pressure head assembly (21) are sleeved on the rotating shaft (601) along the upper guide sleeve (4); The lower guide sleeve can be fitted onto the lower end of the rotating shaft (601), and the lower bearing (10) can be fitted onto the rotating shaft (601) along the lower guide sleeve.

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