Hub motor end cover circlip assembly equipment

Abstract

The present invention provides a hub motor end cover circlip assembly device, belonging to the field of mechanical technology. This hub motor end cover circlip assembly device includes a frame, on which there is a first conveyor line and a circlip loading mechanism. The first conveyor line is horizontally arranged, and there is a first fixture running thereon for horizontally supporting and positioning the end cover. There are multiple first fixtures distributed along the conveying direction of the first conveyor line; the circlip loading mechanism includes a pressing-in mechanism and a horizontally arranged circlip conveyor line. The circlip conveyor line is arranged on one side of the first conveyor line. This circlip conveyor line includes an outlet, and a correction mechanism for correcting the position of the circlip is arranged at the outlet. The pressing-in mechanism is used to grab the corrected circlip and press the circlip into the circlip groove of the corresponding end cover. The present invention can realize the automatic assembly of the end cover and the circlip.

Description

Technical Field

[0001] The present invention belongs to the technical field of machinery, and relates to a hub motor assembly device, in particular to a hub motor end cover circlip assembly device. Background Art

[0002] A hub motor is a motor designed by integrating the "power system, transmission system, and braking system" of a vehicle.

[0003] A flywheel is an important component of a hub motor, and it is installed on the end cover of the hub motor. Specifically, as Figure 1 shown, the end cover 1 includes a main body in the shape of a round basin. A circle of flange holes axially penetrating through the main body are provided at the edge of the main body. A circular guide portion is coaxially formed at the top of the main body, and a tube body 1a is coaxially formed at the bottom of the main body; the flywheel 2 includes a circular ring body and a circle of teeth 2a formed outside the circular ring body. Among them, the circular ring body is sleeved on the tube body 1a and the two are threadedly connected. A circlip groove for installing a circlip 3 is opened on the outer wall of the tube body 1a, and the circlip 3 is pressed on the end face of the flywheel 2 away from the main body to prevent the flywheel from coming off.

[0004] Currently, both the two processes of end cover flywheel assembly and end cover circlip assembly are completely realized by manual labor, which not only has low efficiency but also requires a lot of manpower input, resulting in high labor costs. Summary of the Invention

[0005] The purpose of the present invention is to address the above problems existing in the prior art and propose a hub motor end cover circlip assembly device. The technical problem to be solved is how to automatically assemble the circlip onto the end cover.

[0006] The purpose of the present invention can be achieved by the following technical solutions: A hub motor end cover circlip assembly device includes a frame. It is characterized in that a first conveyor line and a circlip loading mechanism are provided on the frame. The first conveyor line is horizontally arranged and a first tooling for horizontally supporting and positioning the end cover runs thereon. There are multiple first toolings and they are distributed along the conveying direction of the first conveyor line; the circlip loading mechanism includes a pressing-in mechanism and a horizontally arranged circlip conveyor line. The circlip conveyor line is arranged on one side of the first conveyor line. The circlip conveyor line includes an outlet, and a correction mechanism for correcting the position of the circlip is provided at the outlet. The pressing-in mechanism is used to grab the corrected circlip and press the circlip into the circlip groove of the corresponding end cover.

[0007] The first conveyor line and the circlip conveyor line are set to automatically feed the end cover, flywheel assembly, and circlip respectively, which is conducive to the automatic loading of the circlip by the pressing-in mechanism. The whole process can be fully automated and operated in a production line except for the preliminary placement of parts. In this way, not only is the efficiency high, but also the manpower input can be reduced and the labor cost can be lowered.

[0008] In the above-mentioned hub motor end cover circlip assembly equipment, the alignment mechanism includes a positioning frame fixed on the machine frame. A strip-shaped groove that is horizontally arranged and matches the size of the circlip is formed on the top wall of the positioning frame. The length of the strip-shaped groove extends along the arrangement direction of the circlip conveying line and conveying line 1. One end of the strip-shaped groove is connected to the outlet of the circlip conveying line, and the inner wall of the other end of the strip-shaped groove is an arc surface that matches the circlip. During use, the circlip output from the outlet of the circlip conveying line slides into the strip-shaped groove for position alignment, and finally contacts and is limited by the arc surface and undergoes further position adjustment to ensure that the circlip accurately moves to the grasping position, guaranteeing the stable progress of subsequent operations.

[0009] In the above-mentioned hub motor end cover circlip assembly equipment, the circlip conveying line includes a support plate horizontally fixed on the machine frame and a support block fixed on the support plate. A straight-strip-shaped conveying channel that faces the strip-shaped groove is formed between the support plate and the support block. The height of the conveying channel matches the thickness of the circlip, and the outlet of the conveying channel is the outlet of the circlip conveying line; a material pipe is vertically fixed on the support block, and the material pipe is connected to the conveying channel through a material passing hole vertically penetrating the support block, and the inner diameters of the material pipe and the material passing hole both match the outer diameter of the circlip; a driving member 3 and a driving plate are also provided on the support plate. The conveying channel is between the driving plate and the strip-shaped groove, and one end of the driving plate extends into the conveying channel. The driving member 3 is used to push the driving plate to reciprocate horizontally along the length direction of the conveying channel. During use, multiple circlips are stacked up and down in the material pipe. The circlip at the bottom enters the conveying channel through the material hole under the action of gravity. Then, the driving member 3 drives the driving plate to move to push the circlip into the strip-shaped groove. The above process is repeated. Workers only need to put the circlips into the material pipe, and other processes are completely automatic. It not only has high efficiency but also can save labor input.

[0010] In the above-mentioned hub motor end cover circlip assembly equipment, a circular hole vertically penetrating is formed on the bottom wall of the strip-shaped groove. The circular hole and the above-mentioned arc surface are coaxially arranged, and the inner diameter of the circular hole is larger than the inner diameter of the circlip but smaller than the outer diameter of the circlip; the alignment mechanism further includes an alignment rod coaxially arranged in the circular hole. The upper end of the alignment rod is a tapered part that matches the inner hole of the circlip, and the diameter of the tapered part gradually becomes larger downward. A driving member 4 for driving the alignment rod to lift and lower is also fixed on the machine frame. During use, when the circlip is pressed on the arc surface and stays, the driving member 4 drives the alignment rod to move upward so that the tapered part extends into the circlip and jacks it up to further align the position of the circlip by using the taper of the tapered part, thereby further strengthening the position accuracy of the circlip and making the subsequent installation more stable.

[0011] In the aforementioned hub motor end cap retaining spring assembly equipment, a bracket is fixed to a frame. The bracket includes a plate-like portion vertically arranged above conveyor line 1, and the length of the plate-like portion extends along the length of the strip groove. The pressing mechanism includes a connecting seat slidably mounted on the plate-like portion, a connecting frame slidably mounted on the connecting seat, a driving member 5 for driving the connecting seat to slide along the length of the plate-like portion, and a driving member 6 for driving the connecting frame to rise and fall. The connecting frame is equipped with a gripping structure for grabbing the corrected retaining spring and a pressing structure for pressing the retaining spring on the gripping structure into the end cap retaining spring groove. The pressing mechanism is divided into three parts: a sliding member, a gripping structure, and a pressing structure. This not only facilitates design but also improves operational stability.

[0012] In the above-mentioned hub motor end cover retaining spring assembly equipment, a mounting hole is vertically penetrated on the bottom wall of the strip groove, a round sleeve is inserted in the mounting hole, and the inner hole of the round sleeve is the above-mentioned round hole, and the positioning frame is also provided with a lifting structure for driving the round sleeve to rise and fall; the material grabbing structure includes an expansion sleeve and a driving member seven, both of which are arranged on the connecting frame, the outer wall of the expansion sleeve matches the retaining spring, the upper end of the expansion sleeve is fixedly connected to the connecting frame, an outer support rod is vertically provided in the expansion sleeve, the upper end of the outer support rod extends out of the expansion sleeve and is connected to the driving member seven, the lower end of the expansion sleeve is matched with the outer support rod through a conical surface, and the driving member seven is used to drive the outer support rod to rise and fall, and the expansion sleeve can be moved to be coaxial with the correction rod. The usage process is as follows: the expansion sleeve moves to align with the correction rod and the outer support rod is pressed on the correction rod, then the expansion sleeve and the correction rod are moved down synchronously to press the retaining spring on the round sleeve. At this time, the expansion sleeve partially enters the inner hole of the retaining spring, then the round sleeve moves up to lift the retaining spring, and then the outer support rod moves up to make the expansion sleeve expand and hold the retaining spring tightly, then the expansion sleeve moves to the end cover position, during the operation of the pressing structure, the outer support rod moves down to make the expansion sleeve contract and loosen the retaining spring, ensuring that the retaining spring is smoothly inserted into the retaining spring groove of the end cover.

[0013] In the above-mentioned hub motor end cover retaining spring assembly equipment, the type of driving component four is a telescopic cylinder, so that in actual use, the outer support rod can directly force the correction rod to move down and reset, which facilitates the design and ensures the overall working stability.

[0014] In the aforementioned in-wheel motor end cap retaining spring assembly apparatus, the pressing structure comprises an extrusion frame and a drive element 8 for driving the extrusion frame upward and downward, with the drive element 8 being mounted on a connecting frame. The extrusion frame's bottom wall comprises a horizontally arranged pressure plate, which is vertically penetrated by a clearance hole for the lower end of the expansion sleeve. The pressure plate both pushes the retaining spring on the expansion sleeve into the retaining spring slot in the end cap and limits the upward movement of the retaining spring driven by the circular sleeve, ensuring that the retaining spring is moved into position all at once. In other words, in this application, the extrusion frame serves two purposes, simplifying the structure and facilitating assembly.

[0015] In the above-mentioned hub motor end cover retaining spring assembly device, the extrusion frame is roughly U-shaped, and there are two driving members 8 connected to both ends of the extrusion frame to provide a larger and more stable force to install the retaining spring.

[0016] In the above hub motor end cover circlip assembly equipment, the material pipe includes a circular pipe vertically arranged and made of elastic material. One side of the circular pipe is open, and a hoop is sleeved and fixed on the circular pipe. There are multiple hoops distributed along the axial direction of the circular pipe. Setting the hoop on the circular pipe can slightly adjust the inner diameter of the circular pipe to adjust the friction between the circlip and the circular pipe, ensuring the smooth and orderly sliding of the circlip and further improving the working stability.

[0017] Compared with the prior art, the present hub motor end cover circlip assembly equipment has the following advantages:

[0018] 1. The first conveyor line and the circlip conveyor line are set to automatically feed the end cover, flywheel assembly and circlip respectively, and facilitate the automatic installation of the circlip by the pressing mechanism. The whole process can achieve fully automated and assembly line operation except for the preliminary placement of parts. This not only has high efficiency, but also can reduce the labor input and lower the labor cost.

[0019] 2. The fourth driving part drives the calibration rod to move upward so that the tapered part extends into the circlip and jacks it up, using the taper of the tapered part to further calibrate the position of the circlip, thereby further strengthening the position accuracy of the circlip and making the subsequent installation more stable.

[0020] 3. The pressing plate part is used to push the circlip on the expansion sleeve into the end cover circlip groove and also used to limit the upward movement distance of the circlip driven by the circular sleeve, so that the circlip moves in place at one time. That is, in this application, the extrusion frame has the effect of serving two purposes, simplifying the structure and facilitating assembly. Description of the Drawings

[0021] Figure 1 It is the connection structure of the end cover, flywheel and circlip.

[0022] Figure 2 It is the three-dimensional structure schematic diagram of the hub motor end cover circlip assembly equipment.

[0023] Figure 3 It is the distribution structure schematic diagram of the first conveyor line and the circlip conveyor line.

[0024] Figure 4 It is the structure schematic diagram of the first tooling.

[0025] Figure 5 It is the three-dimensional structure schematic diagram of the circlip conveyor line.

[0026] Figure 6 It is the cross-sectional structure schematic diagram of the circlip conveyor line.

[0027] Figure 7 It is the three-dimensional structure schematic diagram of the material grabbing structure and the material pressing structure.

[0028] Figure 8 It is Figure 7 The enlarged structure schematic diagram of the A position in

[0029] Figure 9 It is a schematic cross-sectional structure diagram of a material grasping structure and a material pressing structure.

[0030] In the figure, 1 is an end cover; 1a is a pipe body; 2 is a flywheel; 2a is a tooth; 3 is a snap ring; 4 is a frame; 5 is a first conveyor line; 5a is a first conveying track; 5b is a first push plate; 5c is a universal ball; 7 is a first tooling; 7a is a bottom plate; 7b is a circular plate; 7c is a first positioning post; 9 is a bracket; 9a is a plate-shaped part; 15 is a support plate; 16 is a support block; 17 is a conveying channel; 18 is a material pipe; 18a is a circular pipe; 18b is a hoop; 19 is a third driving part; 20 is a driving plate; 21 is a positioning frame; 21a is a strip-shaped groove; 21b is an arc surface; 22 is a calibration rod; 22a is a tapered part; 23 is a fourth driving part; 24 is a connecting seat; 25 is a connecting frame; 26 is a fifth driving part; 27 is a sixth driving part; 28 is a circular sleeve; 28a is a circular hole; 29 is a mounting plate; 30 is a ninth driving part; 31 is an expansion sleeve; 32 is a seventh driving part; 33 is an outer support rod; 34 is an extrusion frame; 34a is a pressing plate part; 35 is an eighth driving part. Detailed implementation manners

[0031] The following are specific embodiments of the present invention and in combination with the accompanying drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.

[0032] As Figure 2 shown, the hub motor end cover snap ring assembly equipment includes a frame 4. A first conveyor line 5 is horizontally arranged on the frame 4. A first tooling 7 for horizontally supporting and positioning the end cover 1 is running on the first conveyor line 5. There are multiple first toolings 7 and they are distributed along the conveying direction of the first conveyor line 5.

[0033] Specifically,

[0034] As Figure 3 and Figure 4 shown, the first tooling 7 includes a horizontally arranged bottom plate 7a and a circular plate 7b horizontally arranged on the bottom plate 7a, and the circular plate 7b and the bottom plate 7a are coaxially arranged. The circular plate 7b is pressed on the bottom plate 7a and they are fixedly connected. Preferably, the circular plate 7b and the bottom plate 7a are fixedly connected by screws. A circular groove matching the guide part of the end cover 1 is coaxially arranged on the top wall of the circular plate 7b. A circle of first positioning posts 7c matching the flange holes of the end cover 1 are vertically fixed on the edge of the circular plate 7b. When in use, the edge of the end cover 1 is pressed on the circular plate 7b. At this time, each positioning post is inserted into one of the flange holes, and the guide part is inserted into the circular groove, so that the end cover 1 can only move up and down relative to the circular plate 7b.

[0035] As Figure 2 and Figure 8As shown, a snap ring mounting mechanism is further provided on the frame 4. The snap ring mounting mechanism includes a pressing-in mechanism and a horizontally arranged snap ring conveying line. The snap ring conveying line is arranged on one side of the first conveying line 5. The snap ring conveying line includes an outlet, and a correcting mechanism for correcting the position of the snap ring 3 is arranged at the outlet. The pressing-in mechanism is used to grasp the corrected snap ring 3 and press the snap ring 3 into the snap ring groove of the corresponding end cover 1.

[0036] In this embodiment,

[0037] As Figure 3 shown, the first conveying line 5 includes a first driving mechanism and a U-shaped first conveying track 5a. A plurality of first toolings 7 are arranged in a U-shape on the first conveying track 5a, and adjacent first toolings 7 are in head-to-tail contact. At this time, the adjacent bottom plates 7a are in head-to-tail contact, and a vacant position is reserved on the first conveying track 5a for the operation of the first tooling 7. The first driving mechanism is used to push the first tooling 7 to operate.

[0038] A bracket 9 is fixed on the frame 4. The bracket 9 includes a vertically arranged plate-shaped part 9a. The plate-shaped part 9a is located above the first conveying line 5. The length of the plate-shaped part 9a extends along the distribution direction of the first conveying line 5 and the snap ring conveying line. The pressing-in mechanism is arranged on one side of the plate-shaped part 9a.

[0039] The structure of the first driving mechanism is specifically as follows: It includes a first driving part and a vertically arranged first pushing plate 5b. There are four first pushing plates 5b, which are respectively arranged at the four corners of the first conveying track 5a. The number of the first driving parts is the same as that of the first pushing plates 5b, and their positions correspond one by one. The first driving part is used to drive the corresponding first pushing plate 5b to translate along the operation direction of the corresponding first tooling 7. Among them, the first driving part is a cylinder or an electric push rod. Further explanation, the first conveying track 5a is surrounded by four strip-shaped segments. A smooth strip is horizontally fixed in each strip-shaped segment, and the bottom plate 7a is pressed on the smooth strip to ensure the stable and smooth sliding of the first tooling 7. A plurality of universal balls 5c are fixed between adjacent strip-shaped segments to make the first tooling 7 turn more smoothly.

[0040] The snap ring conveying line is as follows: As Figure 3 、 Figure 5 and Figure 6 shown, it includes a support plate 15 horizontally fixed on the frame 4 and a support block 16 fixed on the support plate 15. A straight strip-shaped conveying channel 17 is formed between the support plate 15 and the support block 16, and the length of the conveying channel 17 extends along the length direction of the plate-shaped part 9a. The height of the conveying channel 17 matches the thickness of the snap ring 3, that is, the conveying channel 17 can only accommodate one snap ring 3, and the outlet of the conveying channel 17 is the outlet of the snap ring conveying line. As Figure 1As shown, a material pipe 18 is vertically fixed on the support block 16. The material pipe 18 is communicated with the conveying channel 17 through a material passing hole vertically penetrating through the support block 16. The material pipe 18 and the feeding hole are coaxially arranged, and the inner diameters of the material pipe 18 and the material passing hole are both matched with the outer diameter of the snap ring 3, further ensuring that only one snap ring 3 enters the conveying channel 17 each time; a third driving member 19 and a driving plate 20 are also provided on the support plate 15. The conveying channel 17 is located between the driving plate 20 and the first conveying line 5, and one end of the driving plate 20 extends into the conveying channel 17. The third driving member 19 is used to push the driving plate 20 to reciprocate horizontally along the length direction of the conveying channel 17. During use, multiple snap rings 3 are stacked up and down in the material pipe 18. The snap ring 3 at the bottom falls into the conveying channel 17 through the material hole under the action of gravity. Then, the third driving member 19 drives the driving plate 20 to move to push out the snap ring 3. The above process is repeated. Workers only need to put the snap rings 3 into the material pipe 18, and other processes are completely automatic, which not only has high efficiency but also saves labor input. In actual products, the driving plate 20 is located between the third driving member 19 and the conveying channel 17. The third driving member 19 is a cylinder, the cylinder block is fixed on the support plate 15, and the cylinder piston rod is fixedly connected to the driving plate 20. Naturally, the third driving member 19 can also be an oil cylinder or an electric push rod.

[0041] Further explanation, the material pipe 18 includes a vertical circular pipe 18a made of an elastic material. The elastic material can be stainless steel material or plastic material, and preferably the circular pipe 18a is made of stainless steel material. One side of the circular pipe 18a is open, and a clamp 18b is sleeved and fixed on the circular pipe 18a. There are multiple clamps 18b distributed along the axial direction of the circular pipe 18a, which are used to slightly adjust the inner diameter of the circular pipe body 18a to adjust the friction between the snap ring 3 and the circular pipe body 18a, ensuring that the snap ring 3 slides smoothly and orderly, and further improving the working stability.

[0042] The alignment mechanism is as follows: It includes a positioning frame 21 fixed on the frame 4. A strip-shaped groove 21a horizontally formed and sized to match the snap ring 3 is formed on the top wall of the positioning frame 21. The length of the strip-shaped groove 21a extends along the length direction of the conveying channel 17. One end of the strip-shaped groove 21a is connected to the outlet of the conveying channel 17, and the inner wall of the other end of the strip-shaped groove 21a is an arc surface 21b matching the snap ring 3. During use, the snap ring 3 slides into the strip-shaped groove 21a through the conveying channel 17 and finally contacts and is limited by the arc surface 21b, ensuring that the snap ring 3 is accurately moved to the grasping position and guaranteeing the stable progress of subsequent operations.

[0043] Further explanation, as Figure 5 and Figure 6As shown in the figure, a round hole 28a vertically penetrating is formed on the bottom wall of the strip-shaped groove 21a. The round hole 28a is coaxially arranged with the arc surface 21b, and the inner diameter of the round hole 28a is larger than the inner diameter of the snap ring 3 but smaller than the outer diameter of the snap ring 3. The correction mechanism further includes a correction rod 22 coaxially arranged in the round hole 28a. The upper end of the correction rod 22 is a tapered portion 22a matching the inner hole of the snap ring 3, and the diameter of the tapered portion 22a gradually increases downward. A fourth driving member 23 for driving the correction rod 22 to move up and down is also fixedly arranged on the frame 4. During use, when the snap ring 3 is pressed on the arc surface 21b and stays, the fourth driving member 23 drives the correction rod 22 to move upward so that the tapered portion 22a extends into the snap ring 3 and jacks it up, so as to further correct the position of the snap ring 3 by using the taper of the tapered portion 22a, thereby further enhancing the position accuracy of the snap ring 3 and enabling the subsequent installation to proceed more stably.

[0044] In the actual product, the fourth driving member 23 is a telescopic cylinder. The cylinder body of the telescopic cylinder is fixed on the frame 4, and the piston rod of the telescopic cylinder is fixedly connected to the correction rod 22.

[0045] As Figure 7 、 Figure 8 and Figure 9 shown in the figure, the structure of the pressing-in mechanism is as follows: It includes a connecting seat 24 slidably arranged on the plate-shaped portion 9a, a connecting frame 25 slidably arranged on the connecting seat 24, a fifth driving member 26 for driving the connecting seat 24 to slide along the length direction of the plate-shaped portion 9a, and a sixth driving member 27 for driving the connecting frame 25 to move up and down. Among them, the connecting frame 25 is provided with a material-grabbing structure for grasping the corrected snap ring 3 and a material-pressing structure for pressing the snap ring 3 on the material-grabbing structure into the snap ring groove of the end cover 1. The pressing-in mechanism is divided into three parts: a sliding component, a material-grabbing structure, and a material-pressing structure, which is not only convenient for design but also can improve the running stability.

[0046] Among them,

[0047] The connecting seat 24 is slidably arranged on the plate-shaped portion 9a through a guide rail-slider structure; the connecting frame 25 is slidably arranged on the connecting seat 24 through a guide rail-slider structure. In the actual product, the guide rail and the slider are fixedly connected to the connecting frame 25 and the connecting seat 24 respectively.

[0048] The fifth driving member 26 and the sixth driving member 27 can both be cylinders or oil cylinders. Among them, the piston rod of the fifth driving member 26 is fixedly connected to the connecting seat 24; the piston rod of the sixth driving member 27 is fixedly connected to the corresponding guide rail.

[0049] As Figure 5 and Figure 6As shown, a mounting hole is vertically penetrated on the bottom wall of the strip groove 21a, and a circular sleeve 28 is inserted into the mounting hole. The inner hole of the circular sleeve 28 is the circular hole 28a mentioned above. Preferably, the top wall of the circular sleeve 28 is flush with the bottom wall of the strip groove 21a. The positioning frame 21 is also provided with a lifting structure for driving the circular sleeve 28 to rise and fall. Specifically, the lifting structure includes a horizontally arranged mounting plate 29 and a driving member 9 30 for driving the mounting plate 29 to rise and fall. The circular sleeve 28 is pressed on the top wall of the mounting plate 29 and the two are fixedly connected; the mounting plate 29 is located between the driving member 9 30 and the circular sleeve 28. The driving member 9 30 is an air cylinder or an oil cylinder. The cylinder body of the driving member 9 30 is fixed to the positioning frame 21, and the piston rod of the driving member 9 30 is fixedly connected to the mounting plate 29. In the actual product, the circular sleeve 28 is fixed in the middle of the mounting plate 29, and there are two driving members 30, which act on both ends of the mounting plate 29 respectively to improve the lifting and lowering stability of the circular sleeve 28; an avoidance hole is provided on the mounting plate 29 for the correction rod 22 to pass through.

[0050] The material grabbing structure is as follows: Figure 8 and Figure 9 As shown, it includes an expansion sleeve 31 and a driving member 32, both mounted on the connecting frame 25. The outer wall of the expansion sleeve 31 mates with the retaining spring 3, and the upper end of the expansion sleeve 31 is fixedly connected to the connecting frame 25. An outer support rod 33 is vertically disposed within the expansion sleeve 31. The upper end of the outer support rod 33 extends out of the expansion sleeve 31 and is connected to the driving member 32. The lower end of the expansion sleeve 31 engages with the outer support rod 33 via a tapered surface, and the driving member 32 is used to drive the outer support rod 33 upward and downward. In this embodiment, the driving member 32 is a cylinder, the cylinder body of which is fixed to the connecting frame 25, and the cylinder piston rod is fixedly connected to the outer support rod 33. By moving the connecting frame 25, the expanding sleeve 31 can be made coaxial with the correction rod 22, and the entire material grabbing process is as follows: the expanding sleeve 31 moves to align with the correction rod 22 and the outer support rod 33 is pressed on the correction rod 22, then the expanding sleeve 31 and the correction rod 22 are synchronously moved down to press the retaining spring 3 on the circular sleeve 28. At this time, the expanding sleeve 31 partially enters the inner hole of the retaining spring 3, then the circular sleeve 28 moves up to lift the retaining spring 3, and then the outer support rod 33 moves up to make the expanding sleeve 31 expand and clamp the retaining spring 3, and then the expanding sleeve 31 moves to the position of the end cover 1. During the operation of the pressing structure, the outer support rod 33 moves down to make the expanding sleeve 31 contract and loosen the retaining spring 3, ensuring that the retaining spring 3 is smoothly inserted into the retaining spring groove of the end cover 1.

[0051] The pressing structure is as follows: it includes an extrusion frame 34 and a driving member 8 35 for driving the extrusion frame 34 up and down, with the driving member 8 35 being mounted on the connecting frame 25. The bottom wall of the extrusion frame 34 comprises a horizontally arranged pressure plate portion 34a, which is vertically penetrated by a clearance hole for the lower end of the expansion sleeve 31 to pass through. In actual use, the pressure plate portion 34a is used to both push the retaining spring 3 on the expansion sleeve 31 into the retaining spring groove of the end cap 1 and to limit the upward movement distance of the retaining spring 3 driven by the circular sleeve 28, so that the retaining spring 3 is moved into position all at once. In other words, in this application, the extrusion frame 34 serves two purposes, simplifying the structure and facilitating assembly.

[0052] Further explanation, the extrusion rack 34 is generally U-shaped, and there are two driving members VIII 35 which are respectively connected to both ends of the extrusion rack 34 to provide a greater and stable acting force for installing the circlip 3. In this embodiment, the driving member VIII 35 is a cylinder or an oil cylinder.

[0053] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art to which the present invention pertains can make various modifications or supplements to the described specific embodiments or use similar ways of substitution, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. Hub motor end cover circlip assembly equipment, including a frame (4), characterized in that A conveyor line one (5) and a snap ring mounting mechanism are provided on a frame (4). The conveyor line one (5) is horizontally arranged, and a tooling one (7) for horizontally supporting and positioning an end cap (1) is running thereon. There are multiple toolings one (7) distributed along the conveying direction of the conveyor line one (5). The snap ring mounting mechanism includes a pressing-in mechanism and a horizontally arranged snap ring conveyor line. The snap ring conveyor line is arranged on one side of the conveyor line one (5). The snap ring conveyor line includes an outlet, and a correcting mechanism for correcting the position of the snap ring (3) is arranged at the outlet. The pressing-in mechanism is used to grab the corrected snap ring (3) and press the snap ring (3) into the snap ring groove of the corresponding end cap (1). The correcting mechanism includes a positioning frame (21) fixed on the frame (4). A horizontally arranged strip-shaped groove (21a) with dimensions matching those of the snap ring (3) is formed on the top wall of the positioning frame (21). The length of the strip-shaped groove (21a) extends along the arrangement directions of the snap ring conveyor line and the conveyor line one (5). One end of the strip-shaped groove (21a) is connected to the outlet of the snap ring conveyor line, and the inner wall of the other end of the strip-shaped groove (21a) is an arc surface (21b) matching the snap ring (3). A circular hole (28a) vertically penetrating is formed on the bottom wall of the strip-shaped groove (21a). The circular hole (28a) and the above-mentioned arc surface (21b) are coaxially arranged, and the inner diameter of the circular hole (28a) is larger than the inner diameter of the snap ring (3) but smaller than the outer diameter of the snap ring (3). The correcting mechanism further includes a correcting rod (22) coaxially arranged in the circular hole (28a). The upper end of the correcting rod (22) is a tapered portion (22a) matching the inner hole of the snap ring (3), and the diameter of the tapered portion (22a) gradually becomes larger downward. A driving member four (23) for driving the correcting rod (22) to move up and down is also fixed on the frame (4).

2. The snap ring assembly device for the hub motor end cover according to claim 1, wherein, The snap ring conveyor line includes a support plate (15) horizontally fixed on the frame (4) and a support block (16) fixed on the support plate (15). A conveying channel (17) in a straight strip shape and facing the strip-shaped groove (21a) is formed between the support plate (15) and the support block (16). The height of the conveying channel (17) matches the thickness of the snap ring (3), and the outlet of the conveying channel (17) is the outlet of the snap ring conveyor line. A material pipe (18) is vertically fixed on the support block (16). The material pipe (18) communicates with the conveying channel (17) through a material passing hole vertically penetrating the support block (16), and the inner diameters of the material pipe (18) and the material passing hole both match the outer diameter of the snap ring (3). A driving member three (19) and a driving plate (20) are also arranged on the support plate (15). The conveying channel (17) is between the driving plate (20) and the strip-shaped groove (21a), and one end of the driving plate (20) extends into the conveying channel (17). The driving member three (19) is used to push the driving plate (20) to reciprocate horizontally along the length direction of the conveying channel (17).

3. The snap ring assembling device for the hub motor end cover according to claim 1, characterized in that, A bracket (9) is fixed on the frame (4), and the bracket (9) includes a plate-shaped portion (9a) vertically arranged and located above the conveyor line (5), and the length of the plate-shaped portion (9a) extends along the length direction of the strip groove (21a). The pressing mechanism includes a connecting seat (24) slidably arranged on the plate-shaped portion (9a), a connecting frame (25) slidably arranged on the connecting seat (24), a driving member five (26) for driving the connecting seat (24) to slide along the length direction of the plate-shaped portion (9a), and a driving member six (27) for driving the connecting frame (25) to rise and fall. The connecting frame (25) is provided with a grabbing structure for grabbing the corrected retaining spring (3) and a pressing structure for pressing the retaining spring (3) on the grabbing structure into the retaining spring groove of the end cover (1).

4. The hub motor end cover circlip assembly equipment according to claim 3, characterized in that, A mounting hole is vertically passed through the bottom wall of the strip groove (21a), a circular sleeve (28) is inserted into the mounting hole, and the inner hole of the circular sleeve (28) is the above-mentioned circular hole (28a), and the positioning frame (21) is also provided with a lifting structure for driving the circular sleeve (28) to rise and fall; the material grabbing structure includes an expansion sleeve (31) and a driving member (32) both of which are arranged on the connecting frame (25), the outer wall of the expansion sleeve (31) matches the retaining spring (3), the upper end of the expansion sleeve (31) is fixedly connected to the connecting frame (25), an outer support rod (33) is vertically provided in the expansion sleeve (31), the upper end of the outer support rod (33) extends out of the expansion sleeve (31) and is connected to the driving member (32), the lower end of the expansion sleeve (31) is matched with the outer support rod (33) through a conical surface, and the driving member (32) is used to drive the outer support rod (33) to rise and fall, and the expansion sleeve (31) can be moved to be coaxial with the correction rod (22).

5. The snap ring assembling device for the hub motor end cover according to claim 4, wherein, The type of driving member four (23) is a telescopic cylinder.

6. The snap ring assembling device for the hub motor end cover according to claim 5, characterized in that, The pressing structure includes an extrusion frame (34) and a driving member eight (35) for driving the extrusion frame (34) to rise and fall, and the driving member eight (35) is arranged on the connecting frame (25); the bottom wall of the extrusion frame (34) is a horizontally arranged pressing plate portion (34a), and a clearance hole is vertically penetrated on the pressing plate portion (34a) for the lower end of the expansion sleeve (31) to pass through.

7. The hub motor end cover circlip assembly equipment according to claim 6, characterized in that, The extrusion frame (34) is U-shaped, and there are two driving members (35) connected to both ends of the extrusion frame (34).

8. The hub motor end cover circlip assembly equipment according to claim 2, characterized in that, The material tube (18) comprises a vertically arranged circular tube (18a) made of elastic material. One side of the circular tube (18a) is open. A clamp (18b) is sleeved and fixed on the circular tube (18a). There are multiple clamps (18b) distributed along the axial direction of the circular tube (18a).

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