A device for quick assembly of a rotor circlip and a working method thereof

Abstract

The application relates to the technical field of motor assembly manufacturing, in particular to a device for quickly assembling a rotor clamp spring and a working method thereof, which comprises a feeding carrier, a clamping tool, a feeding line and a feeding mechanism. The clamping tool comprises a tool plate and a lifting mechanism, and a U-shaped groove matched with the clamp spring body is arranged at the bottom of the tool plate. The feeding carrier is used for placing and bearing a rotor body to be assembled. A plurality of clamp spring bodies are horizontally arranged on the feeding line, the feeding mechanism sequentially feeds the clamp spring bodies on the feeding line into the U-shaped groove of the tool plate through intermittent movement, a linkage mechanism is arranged between the lifting mechanism and the feeding mechanism, the linkage mechanism controls the intermittent continuous feeding of the feeding mechanism through the action of the lifting mechanism, and the feeding mechanism comprises a pushing block and a linear displacement mechanism which displace along the feeding line. The application conveniently and efficiently realizes the effect of high-precision assembly.

Description

Technical Field

[0001] This invention relates to the technical field of motor assembly and manufacturing, and in particular to a device for quick assembly of rotor snap rings and its working method. Background Technology

[0002] With the advancement of industrial automation, the rotor snap ring assembly process is gradually developing towards intelligence and high precision. The snap ring is aligned with the snap ring groove from the top of the rotor through a vertical pushing mechanism, and the snap ring is pushed down into the groove. During the process, the snap ring deforms vertically and snaps in, thereby achieving rapid assembly.

[0003] An automatic assembly device for engine rotor retaining rings is disclosed in existing patent publication number CN106271549B, including a retaining ring feeding mechanism, a motor rotor feeding mechanism, a retaining ring pressing mechanism, a control box, a worktable, and an equipment support. The worktable is fixedly connected to the equipment support and is placed horizontally. The control box is fixedly connected to the worktable, the motor rotor feeding mechanism is fixedly connected to the worktable, the retaining ring feeding mechanism is fixedly connected to the worktable, and the retaining ring pressing mechanism is fixedly connected to the worktable. The automatic assembly device for engine rotor retaining rings of the present invention automatically assembles the retaining rings into the first retaining groove and the second retaining groove.

[0004] In the above technical solution, the synchronous assembly function of the retaining ring on the engine rotor is achieved by setting up a symmetrical feeding mechanism and a pressing mechanism. However, the feeding mechanism and the pressing mechanism are used to work continuously and alternately for a long time. It is necessary to ensure the action accuracy of the two mechanisms. If the signal is delayed or the mechanism response is deviated, it is easy to cause the retaining ring to be misaligned or missing, or the equipment to jam, and the fault tolerance of the equipment is poor.

[0005] Therefore, it is necessary to provide a device and its working method for quick assembly of rotor snap rings to achieve good assembly accuracy. Summary of the Invention

[0006] The purpose of this invention is to provide a device for quick assembly of rotor snap rings and its working method, so as to solve the problems mentioned in the background art.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a device for quick assembly of rotor snap rings, comprising a feeding carrier, snap-fit ​​fixtures, a feeding line and a feeding mechanism; The snap-fit ​​fixture includes a fixture plate and a lifting mechanism. The bottom of the fixture plate is provided with a U-shaped groove that is adapted to the snap ring body. The feeding carrier is used to place and support the rotor body to be assembled; Several snap ring bodies are arranged horizontally on the feeding line, and the feeding mechanism feeds the snap ring bodies on the feeding line into the U-shaped groove of the tooling plate in turn by intermittent movement. A linkage mechanism is provided between the lifting mechanism and the feeding mechanism. The linkage mechanism controls the intermittent continuous feeding of the feeding mechanism through the movement of the lifting mechanism.

[0008] As a preferred embodiment of the present invention, the feeding mechanism includes a pusher block that moves along the feeding line and a linear displacement mechanism. The linear displacement mechanism includes a lead screw and a nut seat. Support seats are provided at both ends of the lead screw, and a connecting seat is provided at the top of the nut seat. The bottom of the connecting seat slides along a linear guide rail. The connecting seat is connected to the pusher block. One end of the lead screw passes through the support seat and is rotatably connected to it. The through end of the lead screw is connected to the linkage mechanism.

[0009] As a preferred embodiment of the present invention, the snap-fit ​​fixture further includes a fixing block, which is connected to the top of the fixture plate, and one end of the fixing block slides along the linear guide rail. The linkage mechanism includes a concave vertical block, one end of the fixing block is fixedly connected to the concave vertical block, a rack is provided at the bottom of the concave vertical block, a gear is provided at the bottom of the rack, and ratchet mechanisms are provided at both ends of the gear, which are connected to the lead screw.

[0010] As a preferred embodiment of the present invention, the ratchet mechanism includes a concave disc, with pawls hinged to both ends of the inner side of the concave disc, a ratchet disc disposed inside the pawls, the ratchet disc being fixed to the side of a gear, a central shaft passing through and rotatably connected to the center of the gear, the central shaft being rotatably connected to the concave disc, and the concave disc being connected to a lead screw.

[0011] In a preferred embodiment of the present invention, a guide rod is provided at one end of the pusher block, a connecting block is slidably fitted through the guide rod, a spring is sleeved on the outside of the guide rod, and the connecting block is fixed to one end of the connecting seat.

[0012] In a preferred embodiment of the present invention, the feeding carrier includes a movable support plate, and a limit frame is provided at the upper end of the support plate; A positioning block is provided at the upper end of the bearing plate, and a T-shaped positioning seat is provided opposite to one side of the positioning block.

[0013] As a preferred embodiment of the present invention, the snap-fit ​​fixture is further provided with a positioning frame, and the bottom of the positioning frame is provided with a plurality of positioning wheels.

[0014] As a preferred embodiment of the present invention, a lifting vertical rod is fixedly connected to the upper end of the positioning frame, a vertical groove is provided on the middle side of the lifting vertical rod, a concave seat is slidably fitted on the top of the lifting vertical rod, a central block is provided in the middle of the concave seat, the central block passes through the vertical groove and is slidably fitted therewith, and a spring telescopic rod is provided at the bottom of the central block.

[0015] As a preferred embodiment of the present invention, the feeding line includes a snap ring track, the top of the snap ring track has a distance difference from the pusher block, the bottom of the pusher block has an arched groove, the cross-section of the snap ring track is adapted to the internal shape of the snap ring body, one end of the snap ring track is clearance-fitted with the tooling plate, and the clearance is less than the thickness of a single snap ring body.

[0016] The present invention also provides a method for operating a rotor snap ring quick assembly device, for use in the rotor snap ring quick assembly device as described above, comprising the following steps: Workers load the rotor body to be assembled onto the feeding carrier, which then positions the rotor body at the assembly station. The tooling plate equipped with the snap ring body is moved by the lifting mechanism until the snap ring body is snapped into the snap ring groove of the rotor body. While the tooling plate is reset by the lifting mechanism, the linkage mechanism controls the feeding mechanism to feed through the reset action of the tooling plate, pushing the snap ring body to be assembled on the feeding line into the U-shaped groove of the tooling plate, and preparing for the next assembly. After the workers unload the material and reposition the rotor body onto the feeding carrier, the snap-fit ​​assembly operation of the snap ring body can be performed again.

[0017] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: In the present invention, the linkage mechanism controls the feeding mechanism to automatically feed through the reset action of the lifting mechanism. The two actions alternate in an orderly manner, so that after the current assembly is completed, the snap ring body is automatically replenished, avoiding the problem of poor assembly accuracy caused by signal delay or mechanism response deviation after long-term operation. Attached Figure Description

[0018] The technical solution and other beneficial effects of this application will become apparent from the following detailed description of specific embodiments in conjunction with the accompanying drawings.

[0019] In the attached diagram: Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a three-dimensional schematic diagram of the snap-fit ​​tooling and feeding carrier of the present invention; Figure 3 This is a three-dimensional schematic diagram of the tooling plate of the present invention; Figure 4This is a three-dimensional schematic diagram of the lead screw and nut mechanism of the present invention; Figure 5 This is a cross-sectional schematic diagram of the present invention; Figure 6 This is a schematic diagram of gear and rack meshing according to the present invention; Figure 7 This is an exploded perspective view of the linkage mechanism of the present invention; Figure 8 This is a three-dimensional schematic diagram of the positioning frame of the present invention; Figure 9 This is a three-dimensional schematic diagram of the rotating ring of the present invention; In the diagram: 1. Snap-fit ​​fixture; 101. Fixture plate; 102. U-shaped groove; 103. Fixing block; 104. Concave vertical block; 105. Rack; 106. Gear; 107. Concave disc; 108. Pawl; 109. Ratchet disc; 110. Central shaft; 111. Rotary ring; 112. Friction block; 113. Arc groove; 2. Feeding carrier; 201. Bearing plate; 202. Positioning block; 203. Limiting frame; 204. T-shaped positioning seat; 3. Feeding line; 301. Snap ring rail; 302. Push block; 303. Lead screw; 304. Nut seat; 305. Support seat; 306. Connecting seat; 307. Guide rod; 308. Connecting block; 4. Feeding mechanism; 5. Positioning frame; 501. Lifting vertical rod; 502. Concave seat; 503. Center block; 504. Spring telescopic rod; 6. Rotor body; 7. The circlip body; 8. Lifting mechanism; 9. Linear guide rail one; 901. Linear guide rail two. Detailed Implementation

[0020] The following disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, various specific examples of processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0021] Please see Figure 1-9 The present invention provides a technical solution: a device for quick assembly of rotor snap rings, comprising a feeding carrier 2, a snap-fit ​​fixture 1, a feeding line 3 and a feeding mechanism 4; The snap-fit ​​fixture 1 includes a fixture plate 101 and a lifting mechanism 8. The bottom of the fixture plate 101 is provided with a U-shaped groove 102 that is adapted to the snap ring body 7. The feeding carrier 2 is used to place and support the rotor body 6 to be assembled; Several snap ring bodies 7 are arranged horizontally on the feeding line 3. The feeding mechanism 4 feeds the snap ring bodies 7 on the feeding line 3 into the U-shaped groove 102 of the tooling plate 101 in turn by intermittent movement. A linkage mechanism is provided between the lifting mechanism 8 and the feeding mechanism 4. The linkage mechanism controls the intermittent continuous feeding of the feeding mechanism 4 through the action of the lifting mechanism 8.

[0022] Specifically, the operator loads the rotor body 6 to be assembled onto the feeding carrier 2, which positions the rotor body 6 at the assembly station. The lifting mechanism 8 drives the tooling plate 101, which is equipped with the snap ring body 7, to move until the snap ring body 7 is snapped into the snap ring groove of the rotor body 6, thus completing the snap ring assembly of the current rotor body 6. Then, while the lifting mechanism 8 drives the tooling plate 101 to reset, the linkage mechanism controls the feeding mechanism 4 to feed through the reset action of the tooling plate 101, pushing the snap ring body 7 to be assembled on the feeding line 3 into the U-shaped groove 102 of the tooling plate 101, thus preparing for the next assembly. Afterwards, the operator unloads the current rotor body 6 and places a new rotor body 6 onto the feeding carrier 2, and the snap ring body 7 snapping assembly operation can be performed again. In this embodiment, the linkage mechanism controls the feeding mechanism 4 to automatically feed through the reset action of the lifting mechanism 8. The two actions alternate in an orderly manner, so that after the current assembly is completed, the snap ring body 7 is automatically replenished, avoiding the problem of poor assembly accuracy caused by signal delay or mechanism response deviation after long-term operation. Furthermore, the position of the rotor body 6 is stabilized and fixed by the feeding carrier 2, which ensures the assembly reference accuracy of the snap ring body 7 and avoids the pressing deviation caused by the shaking of the rotor body 6. Furthermore, the snap ring body 7 is stably supported by the U-shaped groove 102 that matches the shape of the snap ring body 7, and the tooling plate 101 is driven to move vertically by the lifting mechanism to achieve precise assembly of the snap ring body 7 and avoid misalignment.

[0023] Based on the above embodiments, the feeding mechanism 4 includes a pusher block 302 that moves along the feeding line 3 and a linear displacement mechanism; The linear displacement mechanism includes a lead screw 303 and a nut seat 304. Support seats 305 are provided at both ends of the lead screw 303. A connecting seat 306 is provided at the top of the nut seat 304. The bottom of the connecting seat 306 slides along the linear guide rail 9. The connecting seat 306 is connected to the pusher block 302. One end of the lead screw 303 passes through the support seat 305 and is rotatably connected to it. The through end of the lead screw 303 is connected to the linkage mechanism.

[0024] Specifically, a pair of linear displacement mechanisms are symmetrically arranged, and the two are controlled by a linkage mechanism. The linkage mechanism synchronously controls a pair of lead screws 303 to rotate and drive the nut seat 304 to move horizontally, which drives the connecting seat 306 to move along the linear guide rail 9 and push the pusher block 302 to move. The pusher block 302 pushes and feeds several arranged snap ring bodies 7. In this embodiment, the mechanical connection between the linkage mechanism and the lead screw 303 ensures that the feeding action and the resetting action of the lifting mechanism 8 are synchronized in an orderly manner, thus ensuring the reliability of intermittent continuous feeding and avoiding the omission of the snap ring body 7 or equipment jamming. Furthermore, the linear displacement mechanism preferentially uses a lead screw and nut mechanism with high transmission accuracy. The two ends of the lead screw 303 are fixedly supported by the support seat 305, which ensures the rigidity and stability of the overall structure. Furthermore, the linear guide rail 9 guides the connecting seat 306 to maintain linear motion, thus preventing the pusher block 302 from shifting during the displacement process. Preferably, a pair of lead screws 303 are symmetrically arranged, so that when the pair of lead screws 303 rotate synchronously in the same direction, they drive the pusher blocks 302 on both sides to move closer or further apart, thereby realizing the feeding operation with symmetrical displacement on both sides.

[0025] Based on the above embodiments, the snap-fit ​​fixture 1 also includes a fixing block 103, which is connected to the top of the fixture plate 101, and one end of the fixing block 103 slides along the linear guide rail 901. The linkage mechanism includes a concave vertical block 104, one end of a fixed block 103 is fixedly connected to the concave vertical block 104, a rack 105 is provided at the bottom of the concave vertical block 104, a gear 106 is provided at the bottom of the rack 105, and ratchet mechanisms are provided at both ends of the gear 106, which are connected to the lead screw 303.

[0026] Specifically, after the snap-fit ​​fixture 1 completes the assembly of the snap ring body 7, it rises and resets, driving the concave vertical block 104 to rise synchronously. Through the meshing of the rack 105 and the gear 106, the gear 106 is driven to rotate. The two sides of the gear 106 transmit power to the lead screw 303 through the ratchet mechanism, thereby driving the lead screw 303 to rotate synchronously, thus realizing the automatic feeding of the snap ring body 7. In this embodiment, by utilizing the unidirectional rotation characteristic of the ratchet mechanism, the rotation of the gear 106 is achieved through the ratchet mechanisms at both ends, enabling the ratchet mechanism to transmit the power of the gear 106 to the lead screw 303 in a specific rotation direction. This allows the locking fixture 1 to drive the lead screw 303 to rotate accordingly during the upward reset action, thereby driving the pusher block 302 to feed. This ensures that the feeding mechanism 4 only triggers a single feed when the fixture plate 101 is reset, preventing the pusher block 302 from moving in the opposite direction or the snap ring from being pushed inaccurately due to continuous feeding. Furthermore, the ratchet mechanism is connected to the lead screw 303. The ratchet mechanism controls the lead screw 303 to perform linear displacement according to the intermittent rotation of the ratchet mechanism, thereby driving the pusher block 302 to perform stable and controllable intermittent feeding, so as to realize the accurate positioning and assembly preparation of the snap ring body 7. Furthermore, the fixing block 103 is connected to the tooling plate 101 and slides along the linear guide rail 901 to ensure the tooling plate 101 is stable in raising and lowering, and to reduce vibration and offset. Furthermore, one end of the fixed block 103 is fixedly connected to the concave vertical block 104, which facilitates the transmission of the vertical lifting motion of the tooling plate 101 to the concave vertical block 104 and ensures the accuracy of motion transmission.

[0027] Based on the above embodiments, the ratchet mechanism includes a concave disc 107, with pawls 108 hinged to both ends of the inner side of the concave disc 107, a ratchet disc 109 disposed inside the pawls 108, the ratchet disc 109 being fixed to the side of the gear 106, a central shaft 110 being rotatably connected through the center of the gear 106, the central shaft 110 being rotatably connected to the concave disc 107, and the concave disc 107 being connected to the lead screw 303.

[0028] Specifically, when the snap-fit ​​fixture 1 descends to snap-fit ​​the snap-fit ​​spring body 7, the rack 105 descends to drive the gear 106 to rotate clockwise (rotation direction as follows). Figure 7 As shown), at this time, the ratchet disc 109 is rotated, and the ratchet disc 109 rotates relative to the inner arc surface of the pawl 108, so that the inner concave disc 107 cannot be driven to rotate, so that the feed mechanism 4 remains stationary; conversely, when the clamping fixture 1 rises, the rack 105 reverses, so that the ratchet disc 109 rotates against the pawl 108, and the two are locked, so that the inner concave disc 107 rotates synchronously, and the feed mechanism 4 can be driven to perform the feeding work; In this embodiment, the inner side of the concave disk 107 is connected by a hinge so that the pawl 108 can swing flexibly when subjected to force, thereby engaging with the ratchet disk 109 to transmit power when the gear 106 rotates in the reverse direction, and automatically disengaging when rotating in the forward direction to avoid jamming. The pawl 108 has good self-adaptability, ensuring that it can maintain precise engagement under vibration or load conditions, and preventing slippage or failure due to small deviations. Furthermore, the central shaft 110 makes the axes of gear 106, ratchet disk 109 and concave disk 107 coincide, ensuring the smoothness of rotational motion and avoiding eccentricity and vibration from affecting accuracy. Preferably, a torsion spring is provided at the hinge connection of the pawl 108. The torsion spring drives the pawl 108 to always deflect towards the ratchet disk 109, ensuring that the pawl 108 is always in contact with the ratchet disk 109, ensuring the stability and timeliness of their engagement, and ensuring that the pawl 108 is reset in time. Preferably, when the snap ring body 7 is fully assembled and the pusher block 302 needs to be reset, the operator rotates the outer ring 111 of the concave disc 107 to move the inner friction block 112. The friction block 112 can move in the arc groove 113. The friction block 112 contacts the pawl 108 and drives the pawl 108 to rotate away from the ratchet disc 109 through friction, thus releasing the jammed state. Then, the outer end of the lead screw 303 is driven by a separate drive mechanism to rotate actively, thereby driving the pusher block 302 to reset.

[0029] Based on the above embodiment, a guide rod 307 is provided at one end of the pusher block 302. A connecting block 308 is slidably fitted through the guide rod 307. A spring is sleeved on the outside of the guide rod 307. The connecting block 308 is fixed to one end of the connecting seat 306.

[0030] Specifically, when the pusher block 302 is displaced under the drive of the feeding mechanism 4, a spring and a guide rod 307 are set between the pusher block 302 and the connecting block 308 to form a flexible connection between the two. When the pusher block 302 pushes the snap ring body 7, it can adapt to the displacement relative to the connecting block 308. The spring is compressed and continues to push the snap ring body 7 through the reaction force. In this embodiment, the pusher block 302 is pushed and fed through the flexible connection formed by the spring and the guide rod 307, so that the pusher block 302 can float along the axial direction of the guide rod 307 according to the change of resistance when pushing the snap ring, avoiding the forced pushing or even squeezing of the snap ring body 7 during the pushing process caused by the rigid connection, thus avoiding damage to the surface of the snap ring body 7. Furthermore, the adoption of a flexible connection design improves the reliability of the linkage mechanism transmission and further enhances the fault tolerance of the pusher block 302 being driven to push the material.

[0031] Based on the above embodiments, the feeding carrier 2 includes a movable support plate 201, and a limit frame 203 is provided on the upper end of the support plate 201; A positioning block 202 is provided at the upper end of the support plate 201, and a T-shaped positioning seat 204 is provided opposite to one side of the positioning block 202.

[0032] Specifically, the rotor body 6 is supported and limited by the limiting frame 203, the bearing plate 201 moves linearly to move it to the assembly work, and the rotor body 6 is moved axially by the T-shaped positioning seat 204 until its other end contacts the positioning block 202 for axial positioning. Preferably, both the T-shaped positioning seat 204 and the bearing plate 201 are driven to move by a linear drive mechanism, which includes, but is not limited to, a cylinder, a lead screw mechanism, or a gear and rack mechanism.

[0033] Based on the above embodiments, the snap-fit ​​fixture 1 is also provided with a positioning frame 5, and the bottom of the positioning frame 5 is provided with several positioning wheels.

[0034] Specifically, when the clamping fixture 1 descends, the positioning frame 5 descends synchronously and first contacts the rotor body 6. The positioning frame 5 then uses the positioning wheels to further align the rotor body 6 before completing the subsequent assembly work. In this implementation, a positioning frame 5 is set up to lift synchronously with the snap-fit ​​fixture 1. Before the assembly work, the position of the rotor body 6 is ensured for the second time, which improves the assembly accuracy and avoids the assembly deviation caused by the displacement and low accuracy of the feeding carrier 2. Furthermore, the positioning wheel uses rolling contact to align and limit the outer surface of the rotor, reducing friction and avoiding the friction caused by traditional rigid positioning, which could damage the surface. It also ensures that the rotor maintains precise axial alignment during the process of the snap ring deforming and locking into the slot.

[0035] Based on the above embodiment, the upper end of the positioning frame 5 is fixedly connected to a lifting vertical rod 501, a vertical groove is opened on the middle side of the lifting vertical rod 501, a concave seat 502 is slidably fitted on the top of the lifting vertical rod 501, a central block 503 is provided in the middle of the concave seat 502, the central block 503 passes through the vertical groove and is slidably fitted thereto, and a spring telescopic rod 504 is provided at the bottom of the central block 503.

[0036] Specifically, after the positioning wheel contacts and aligns with the rotor body 6, the snap-fit ​​fixture 1 continues to descend, the spring telescopic rod 504 is compressed, and the concave seat 502 is displaced relative to the lifting vertical rod 501 until the snap-fit ​​fixture 1 completes the assembly. In this embodiment, the lifting vertical rod 501 and the concave seat 502 are set to slide relative to each other, so that after the positioning wheel aligns the rotor body 6, it can remain in the positioning state until the snap-fit ​​fixture 1 is assembled, thus ensuring the positional accuracy of the rotor body 6 when the snap-fit ​​fixture 1 descends. Furthermore, the vertical groove opened on the middle side of the lifting rod 501 facilitates the sliding of the center block 503, restricts the center block 503 to move only in the vertical direction, and avoids lateral offset from affecting the positioning accuracy; It should be noted that the spring telescopic rod 504 is a telescopic rod with an outer spring, which is existing technology in the mechanical field, so it will not be described in detail here.

[0037] Based on the above embodiments, the feeding line 3 includes a snap ring track 301. There is a distance difference between the top of the snap ring track 301 and the pusher block 302. The bottom of the pusher block 302 is provided with an arched groove. The cross-section of the snap ring track 301 is adapted to the internal shape of the snap ring body 7. One end of the snap ring track 301 is in clearance fit with the tooling plate 101, and the clearance is less than the thickness of a single snap ring body 7.

[0038] Specifically, the pusher block 302 moves along the snap ring track 301, thereby pushing the snap ring body 7 to feed. The snap ring body 7 closest to the tooling plate 101 is pushed by the pusher block 302 and contacts the surface of the tooling plate 101. When the tooling plate 101 rises and resets, the U-shaped groove 102 and the snap ring body 7 are aligned. Under the pushing force of the pusher block 302, the snap ring body 7 can be inserted into the U-shaped groove 102 to complete the feeding. Furthermore, by using the distance difference between the top of the snap ring track 301 and the pusher block 302, the pusher block 302 is prevented from directly rubbing or colliding with the top of the track when it moves, so that the snap ring can slide smoothly on the track. Furthermore, the arched groove at the bottom of the pusher block 302 is adapted to the arc-shaped contour of the snap ring body 7, so that the pusher block 302 can closely fit the curved part when pushing the snap ring, ensuring that the contact surface is evenly stressed. Furthermore, the cross-section of the snap ring track 301 is adapted to the internal shape of the snap ring body 7. The snap ring body 7 can be inserted from both ends of the snap ring track 301 to guide the displacement of the snap ring body 7, prevent rolling or lateral displacement, and further restrict the snap ring body 7 from being pulled upward away from the snap ring track 301 when it comes into contact with the tooling plate 101, ensuring the accuracy of the alignment with the U-shaped groove 102.

[0039] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection, the internal communication between two components, or the interaction between two components. Those skilled in the art can understand the meaning of the above terms in this application according to the specific circumstances.

[0040] The above provides a detailed description of a rotor snap ring quick assembly device and its working method provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the technical solutions and core ideas of this application. Those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A device for quick assembly of rotor snap rings, characterized in that, It includes a feeding carrier (2), a clamping fixture (1), a feeding line (3) and a feeding mechanism (4); The snap-fit ​​fixture (1) includes a fixture plate (101) and a lifting mechanism (8). The bottom of the fixture plate (101) is provided with a U-shaped groove (102) that is compatible with the snap ring body (7). The feeding carrier (2) is used to place and carry the rotor body (6) to be assembled. Several snap ring bodies (7) are arranged horizontally on the feeding line (3). The feeding mechanism (4) feeds the snap ring bodies (7) on the feeding line (3) into the U-shaped groove (102) of the tooling plate (101) in turn by intermittent movement. A linkage mechanism is provided between the lifting mechanism (8) and the feeding mechanism (4). The linkage mechanism controls the intermittent continuous feeding of the feeding mechanism (4) through the action of the lifting mechanism (8). The feeding mechanism (4) includes a pusher block (302) that moves along the feed line (3) and a linear displacement mechanism; The linear displacement mechanism includes a lead screw (303) and a nut seat (304), and one end of the lead screw (303) is connected to the linkage mechanism. The snap-fit ​​fixture (1) also includes a fixing block (103), which is connected to the top of the fixture plate (101), and one end of the fixing block (103) slides along the linear guide rail (901). The linkage mechanism includes a concave vertical block (104), one end of the fixed block (103) is fixedly connected to the concave vertical block (104), a rack (105) is provided at the bottom of the concave vertical block (104), a gear (106) is provided at the bottom of the rack (105), and ratchet mechanisms are provided at both ends of the gear (106), and the ratchet mechanisms are connected to the lead screw (303); The ratchet mechanism includes a concave disc (107), with pawls (108) hinged to both ends of the inner side of the concave disc (107). A ratchet disc (109) is provided inside the pawls (108), and the ratchet disc (109) is fixed to the side of the gear (106). A central shaft (110) is rotatably connected through the center of the gear (106), and the central shaft (110) is rotatably connected to the concave disc (107). The concave disc (107) is connected to the lead screw (303).

2. The device for quick assembly of rotor snap rings according to claim 1, characterized in that, The lead screw (303) is provided with support seats (305) at both ends, and the nut seat (304) is provided with a connecting seat (306) at the top. The bottom of the connecting seat (306) slides along the linear guide rail (9). The connecting seat (306) is connected to the pusher block (302). One end of the lead screw (303) passes through the support seat (305) and is rotatably connected to it.

3. The device for quick assembly of rotor snap rings according to claim 2, characterized in that, One end of the pusher block (302) is provided with a guide rod (307), the guide rod (307) passes through and is slidably fitted with a connecting block (308), a spring is sleeved on the outside of the guide rod (307), and the connecting block (308) is fixed to one end of the connecting seat (306).

4. The device for quick assembly of rotor snap rings according to claim 1, characterized in that, The feeding carrier (2) includes a movable support plate (201), and a limit frame (203) is provided on the upper end of the support plate (201). The upper end of the bearing plate (201) is provided with a positioning block (202), and a T-shaped positioning seat (204) is provided opposite to one side of the positioning block (202).

5. The device for quick assembly of a rotor snap ring according to claim 4, characterized in that, The snap-fit ​​fixture (1) is also provided with a positioning frame (5), and the bottom of the positioning frame (5) is provided with several positioning wheels.

6. The device for quick assembly of rotor snap rings according to claim 5, characterized in that, The upper end of the positioning frame (5) is fixedly connected to a lifting vertical rod (501). A vertical groove is provided on the middle side of the lifting vertical rod (501). A concave seat (502) is slidably fitted on the top of the lifting vertical rod (501). A central block (503) is provided in the middle of the concave seat (502). The central block (503) passes through the vertical groove and is slidably fitted thereto. A spring telescopic rod (504) is provided at the bottom of the central block (503).

7. The device for quick assembly of rotor snap rings according to claim 2, characterized in that, The feeding line (3) includes a snap ring track (301). There is a distance difference between the top of the snap ring track (301) and the pusher block (302). The bottom of the pusher block (302) is provided with an arched groove. The cross-section of the snap ring track (301) is adapted to the internal shape of the snap ring body (7). One end of the snap ring track (301) is clearance-fitted with the tooling plate (101), and the clearance is less than the thickness of a single snap ring body (7).

8. A method for operating a rotor snap ring quick assembly device, used in the rotor snap ring quick assembly device as described in any one of claims 1 to 7, characterized in that, Includes the following steps: The staff loads the rotor body (6) to be assembled onto the feeding carrier (2), and the feeding carrier (2) positions the rotor body (6) at the assembly station. The tooling plate (101) equipped with the snap ring body (7) is driven to move by the lifting mechanism (8) until the snap ring body (7) is snapped into the snap ring groove of the rotor body (6); While the tooling plate (101) is reset by the lifting mechanism (8), the linkage mechanism controls the feeding mechanism (4) to feed through the reset action of the tooling plate (101), pushing the snap ring body (7) to be assembled on the feeding line (3) into the U-shaped groove (102) of the tooling plate (101) to prepare for the next assembly. After the workers unload the material and reposition the rotor body (6) to the feeding carrier (2), the snap-fit ​​assembly operation of the snap ring body (7) can be performed again.

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