Motor stator lifting and dipping paint mechanism

Abstract

The present application relates to a kind of motor stator lifting paint dipping mechanism, belong to motor stator paint dipping technical field, a kind of motor stator lifting paint dipping mechanism, including base, up and down material displacement component, primary lifting assembly, secondary lifting assembly, swing component, controller and paint dipping pool;Base is equipped with paint dipping pool, and up and down material displacement component is displaced by servo motor, screw drive sliding base;The hydraulic cylinder of primary lifting assembly drives bucket lifting, and secondary lifting assembly and swing component cooperate to realize bucket compound swing;Bucket is equipped with drain hole, filter plate and adjustable clamp, and controller links each component, realizes automatic station switching, compound swing paint dipping and efficient paint draining, applicable to the batch paint dipping of multiple specifications motor stator.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of motor stator dip paint, and particularly relates to a motor stator lifting dip paint mechanism. BACKGROUND

[0002] In the manufacturing process of an angle grinder motor, the dip paint treatment of the angle grinder motor stator is a key process for guaranteeing the insulation performance of the motor and prolonging the service life of the motor. Through the dip paint operation, the insulation paint can penetrate into the gaps of the stator winding to form a complete insulation layer, so as to avoid the failure caused by problems such as leakage and breakdown of the stator in the running process. With the continuous improvement of the requirements of the motor industry on production efficiency and product quality, the existing motor stator dip paint technology gradually exposes many problems to be solved, and it is difficult to meet the needs of modern mass production, as follows:

[0003] At present, the dip paint equipment of the stator adopted by most small and medium-sized motor production enterprises has a generally low degree of automation, and the core operation link highly depends on manual operation. In terms of dip paint uniformity, the structural design of the traditional stator dip paint equipment has obvious limitations. The existing equipment mostly adopts the static dip paint or single direction swing dip paint mode, for example, only through the simple lifting assembly to drive the stator to move up and down in the paint, or to rotate around a single axis. However, the motor stator winding structure is complex, and there are many gaps and corner areas. The static dip paint or single swing mode is difficult to make the insulation paint fully penetrate into these areas, and is easy to form a paint coverage dead angle. If only single rotary swing (such as rotation around a fixed axis) is adopted, the axial gap of the stator winding (such as the connection between the upper and lower end faces of the stator and the winding) is easy to be ignored, and the paint is difficult to penetrate into the axial deep gap to form an "axial dead angle". If only up and down swing (such as reciprocating movement along the vertical direction) is adopted, the circumferential gap of the stator winding (such as the gap between adjacent winding coils) is easy to be unable to be fully filled due to the single direction of paint flow, forming a "circumferential dead angle". These dead angles will cause the local insulation layer of the stator to be weak, and subsequent secondary paint filling is required, increasing the process cost. Therefore, the technical personnel in the field provide a motor stator lifting dip paint mechanism to solve the above-mentioned problems. SUMMARY

[0004] The purpose of the present application is to provide a motor stator lifting dip paint mechanism with simple structure and reasonable design to solve the above problems.

[0005] The present application achieves the above-mentioned purposes through the following technical solutions:

[0006] The utility model provides a motor stator lifting paint dipping mechanism, including the base, the middle rear position of the top of base is fixedly installed with the paint dipping pool, its characterized in be to: the top of base is installed with the material feeding and discharging displacement assembly, the top of material feeding and discharging displacement assembly is slidably connected with multistage lifting assembly, multistage lifting assembly includes one stage lifting assembly and two stage lifting assembly, two stage lifting assembly is located one stage lifting assembly, the swing assembly of a plurality of drip buckets is movably connected to the two side walls of each drip bucket, the swing assembly is matched with two stage lifting assembly, each swing assembly includes the rotary lever that is fixedly installed respectively in the two side walls of corresponding drip bucket, the driven gear of the both ends of each rotary lever is fixedly connected respectively, the rack of the inner side wall of paint dipping pool, each rack is matched with corresponding driven gear respectively.

[0007] As a further optimization scheme of the utility model, the material feeding and discharging displacement assembly includes a mounting seat fixedly installed on the top of the base and located at both sides of the paint dipping pool, the inner side walls of the two mounting seats are rotatably connected with lead screws, the front side walls of the two mounting seats are commonly provided with a synchronization box, the synchronization box includes two synchronization wheels installed in the inside thereof, the outer side walls of the two synchronization wheels are commonly provided with a synchronization belt, one end of each of the two lead screws rotatably penetrates the rear side wall of the synchronization box, one end of each of the two lead screws is fixedly connected with the rear side wall of the corresponding synchronization wheel, the front side wall of the synchronization box is fixedly provided with a servo motor fixedly connected with the front side wall of any synchronization wheel, the outer side walls of the two lead screws are threadedly provided with sliding seats slidably connected in the inside of the corresponding mounting seat.

[0008] As a further optimization scheme of the utility model, the one stage lifting assembly includes two hydraulic cylinders fixedly installed on the top of the corresponding sliding seat, the output ends of the two hydraulic cylinders are commonly provided with a lifting seat, the bottom of the lifting seat is provided with a connecting seat corresponding to the number of drip buckets, the two side walls of each connecting seat are fixedly provided with a connecting plate, each rotary lever rotatably penetrates the side wall of the corresponding connecting plate.

[0009] As a further optimization scheme of the utility model, the front side wall and the rear side wall of each screw thread are respectively threadedly penetrated with a screw rod, one end of each screw rod is connected with a clamp rotatably connected in the inside of the corresponding drip bucket, the other end of each screw rod is fixedly provided with a locking nut located at the front side and the rear side of the corresponding drip bucket.

[0010] As a further optimization scheme of the utility model, the bottom of each drip bucket is fixedly provided with a filter plate, the outer side wall of each drip bucket is provided with a plurality of groups of drip holes arranged in a polar circle array.

[0011] As a further optimization scheme of the present application, the secondary lifting assembly comprises a cylinder mounted at one side of the inner side wall of the lifting seat, limit plates are mounted at both sides of the middle of the top of the lifting seat, and a displacement rod is connected to the output end of the hydraulic cylinder, one end of the displacement rod slidingly penetrates the side walls of the two limit plates and the side wall of the lifting seat.

[0012] As a further optimization scheme of the present application, the outer side wall of the displacement rod is fixedly provided with a plurality of groups of fixing sleeves corresponding to the number of connecting seats, each group of fixing sleeves comprises two fixing sleeves, the front side wall of each fixing sleeve is fixedly provided with a transmission rod, the front side wall of the transmission rod is slidingly connected with an L-shaped swing plate, a sliding groove is formed in the upper and lower positions of the front side wall of each L-shaped swing plate, the front side wall of each transmission rod is slidingly connected to the inner side wall of the corresponding sliding groove, a plurality of fixing plates corresponding to the number of L-shaped swing plates are mounted on the top of the lifting seat, the front side wall of each fixing plate is fixedly provided with an axis rod which slidingly penetrates the front side wall of the corresponding L-shaped swing plate, and a plurality of sliding sleeves corresponding to the number of L-shaped swing plates are mounted on the top of the lifting seat, the inner side wall of each sliding sleeve is slidingly connected with a sliding rod, and the front side wall of each sliding rod is fixedly provided with a driven rod which is slidingly connected to the inner side wall of the corresponding sliding groove.

[0013] As a further optimization scheme of the present application, the plurality of sliding rods are divided into groups, and the bottom of each group of sliding rods is fixedly connected to the top of the corresponding connecting seat.

[0014] As a further optimization scheme of the present application, one end of the displacement rod is fixedly connected to a limit disc which is slidingly connected to one side of the lifting seat.

[0015] As a further optimization scheme of the present application, the side wall of any sliding seat is fixedly provided with a controller which is electrically connected to the servo motor, the hydraulic cylinder and the cylinder.

[0016] The present application has the following advantages:

[0017] When the bucket rotates and swings in the paint dipping pool and slightly shakes up and down, the outer side wall and the filter plate inside will continuously disturb the insulating paint in the paint dipping pool. On the one hand, the rotation and swing drive the paint to form a circulating flow around the center of the paint dipping pool, breaking the stratification state of the paint when it is at rest. On the other hand, the up and down shaking promotes the paint to produce convection in the vertical direction, dispersing the possible precipitates at the bottom of the paint dipping pool, avoiding the precipitates from adhering to the surface of the stator. Compared with the prior art, the present scheme does not need to additionally configure a paint stirring device, which not only reduces the equipment procurement and operation energy consumption cost, but also ensures the uniformity of the insulating paint composition, further improving the stability of the stator paint dipping quality.

[0018] The application, the compound swing structure of the rotating swing assembly and the secondary lifting assembly with small amplitude up-down swing: when the bucket is lifted up and down under the action of the secondary transmission assembly, the driven gear meshes with the rack to realize small amplitude swing, at the same time, the L-shaped swing plate and the slide rod driven by the air cylinder make the bucket swing up and down slightly, the superposition of the two kinds of swing makes the surface of the stator and the winding gap fully contact with the paint, completely eliminates the coverage dead angle, compared with the prior art, the uniformity of the stator paint dipping is improved significantly, without secondary paint supplementing, the penetration depth of the insulating paint in the winding is increased, the risk of insulation breakdown during subsequent motor operation is reduced, and the service life of the motor is prolonged.

[0019] The application, the bucket outside wall is provided with a plurality of groups of paint draining holes arranged in a polar peripheral array, and a stainless steel filter plate is fixed at the bottom, forming a three-dimensional paint guiding channel of "side wall + bottom", compared with the prior art of only a small number of paint draining holes in the bottom, after the paint dipping is completed, the controller can control the secondary lifting assembly to drive the bucket to swing up and down with small amplitude and high frequency, during the swing process, the stator and the winding produce slight vibration, break the surface tension of the paint in the winding gap, promote the residual paint to quickly separate and flow out through the paint draining hole and the filter plate, further compress the total paint draining time, and greatly improve the single batch operation efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is the overall structure schematic diagram of the application;

[0021] Figure 2 is the rear view structure schematic diagram of the application; Figure 1

[0022] Figure 3 is the structure schematic diagram of the secondary transmission assembly of the application;

[0023] Figure 4 is the enlarged structure diagram of A in the application; Figure 3

[0024] Figure 5 is the top view structure diagram of the bucket of the application;

[0025] Figure 6 is the cooperation structure diagram of the secondary transmission assembly and the swing assembly of the application;

[0026] Figure 7 is the cooperation structure diagram of the driven gear and the rack of the application.

[0027] ​​In the figure: 1, base; 2, up and down displacement assembly; 201, synchronization box; 202, servo motor; 203, mounting seat; 204, screw rod; 205, sliding seat; 3, first-stage lifting assembly; 301, hydraulic cylinder; 302, lifting seat; 303, bucket; 304, locking nut; 305, connecting seat; 306, sliding rod; 307, connecting plate; 308, threaded sleeve; 309, screw rod; 310, clamp; 311, filter plate; 4, second-stage lifting assembly; 401, air cylinder; 402, limiting plate; 403, displacement rod; 404, fixed plate; 405, fixed sleeve; 406, limiting disc; 407, L-shaped swing plate; 40701, sliding groove; 408, sliding sleeve; 409, transmission rod; 410, shaft rod; 411, driven rod; 5, swing assembly; 501, rotating rod; 502, driven gear; 503, rack; 6, controller; 7, paint dipping tank. DETAILED DESCRIPTION

[0028] The application will be described in further detail below with reference to the drawings. It is necessary to point out here that the following detailed description is only used to further illustrate the application and cannot be understood as limiting the scope of protection of the application. Those skilled in the art can make some non-essential improvements and adjustments to the application according to the above application content. Embodiment 1

[0029] As shown in Figure 1 , Figure 2 , a motor stator lifting paint dipping mechanism comprises a mounting base 1. First, the mounting base 1 is fixedly installed on the horizontal ground in the machining workshop. The base 1 is made of Q235 steel plate and is welded. The bottom is connected with the ground through expansion bolts to ensure the stability of the whole mechanism during operation and avoid the paint dipping position from deviating due to vibration. The paint dipping tank 7 is fixedly installed on the top middle rear side of the base 1 through bolts. The paint dipping tank 7 is made of 304 stainless steel. The inside can accommodate sufficient insulating paint. The inside of the tank wall is pre-smoothed to prevent paint residues from clumping.

[0030] As shown in Figure 1 , Figure 2As shown, on the top of the base 1, the up-down material displacement assembly 2 is installed around the two side areas of the paint dipping pool 7, the top of the up-down material displacement assembly 2 is slidingly connected with the multi-stage lifting assembly including the first-stage lifting assembly 3 and the second-stage lifting assembly 4, the first-stage lifting assembly 3 is movably connected with a plurality of drip buckets 303, each drip bucket 303 is used for placing the motor stator to be dipped in paint, and the swing assembly 5 fixedly connected with the two side walls of the drip bucket 303 cooperates with the second-stage lifting assembly 4, at the same time, the driven gear 502 in the swing assembly 5 cooperates with the rack 503 fixedly connected with the inner side wall of the paint dipping pool 7, when the second-stage lifting assembly 4 acts on the drip bucket 303 to be immersed in the paint dipping pool 7, each driven gear 502 is respectively engaged with the corresponding rack 503 to form a complete paint dipping operation transmission system, in addition, the device further includes a control module, the control module includes the controller 6 fixedly installed on the side wall of any sliding seat 205 through screws, the controller 6 adopts a PLC programmable controller, and is electrically connected with the servo motor 202, the hydraulic cylinder 301 and the air cylinder 401 through wires respectively to realize automatic control of actions of various components.

[0031] As Figure 1 , Figure 2As shown, the up and down feeding displacement assembly 2 includes two mounting seats 203 which are symmetrically arranged on the top of the base 1 and located on both sides of the dipping tank 7, and are fixed by bolts. Rectangular slides are arranged in the mounting seats 203 for sliding of the sliding seat 205. The front side walls of the two mounting seats 203 are jointly fixed by bolts to the synchronous box 201. Two synchronous wheels are rotatably arranged in the synchronous box 201 by bearings. The outer side walls of the two synchronous wheels are jointly sleeved with a synchronous belt made of polyurethane material, which has the characteristics of wear resistance and high transmission efficiency. One end of each of the two lead screws 204 penetrates the rear side wall of the synchronous box 201 by rotation through a bearing, and the end of the lead screw 204 is fixedly connected to the rear side wall of the corresponding synchronous wheel by a flat key. The other end of the lead screw 204 is rotatably connected to the rear inner wall of the mounting seat 203. A servo motor 202 is fixedly arranged on the front side wall of the synchronous box 201 and located in front of the synchronous wheel by a motor base. The output end of the servo motor 202 is fixedly connected to the front side wall of the corresponding synchronous wheel through a shaft coupling. The outer side walls of the two lead screws 204 are respectively threaded with the sliding seat 205. The outer side wall of the sliding seat 205 is slidingly attached to the rectangular slide in the mounting seat 203, so as to ensure stable sliding of the sliding seat 205 along the lead screw 204 in the axial direction. When up and down feeding or switching of the dipping station is needed, the controller 6 sends a start signal to the servo motor 202. The servo motor 202 drives the synchronous wheel connected thereto to rotate. The synchronous wheel drives the other synchronous wheel to synchronously rotate through the synchronous belt, so as to simultaneously and uniformly rotate the two lead screws 204. Since the sliding seat 205 is threadedly connected to the lead screw 204 and cannot rotate due to the limitation of the slide of the mounting seat 203, the rotation of the lead screw 204 is converted into linear motion of the sliding seat 205 in the axial direction of the lead screw 204, so as to drive the multi-stage lifting assembly at the top and the drip bucket 303 to move to the up and down feeding station or the dipping station. The synchronous rotation of the two lead screws 204 is realized through the servo motor 202, the synchronous wheel and the synchronous belt, so as to ensure the stability of the sliding seat 205 during movement and avoid tilting of the drip bucket 303 to cause the motor stator to fall. The servo motor 202 has accurate position control capability, can realize accurate switching of multiple stations, improve the operation efficiency of up and down feeding and dipping, and is better than manual carrying and switching.

[0032] As Figure 1 、 Figure 2As shown, the first lifting assembly 3 includes two hydraulic cylinders 301, which are respectively fixedly installed on the top of the corresponding slide 205 through bolts. The hydraulic cylinders 301 have large thrust and pulling force, and can drive heavy load to lift. The output ends of the two hydraulic cylinders 301 are commonly installed on the lifting seat 302 through flanges. The lifting seat 302 is made of aluminum alloy material, which reduces the overall weight while ensuring the structural strength. On the bottom of the lifting seat 302, the connecting seat 305 corresponding to the number of the drip bucket 303 is installed through bolts. The two side walls of each connecting seat 305 are fixedly installed with the connecting plate 307 through welding. The bearing hole is formed on the connecting plate 307. The rotating rod 501 penetrates the side wall of the corresponding connecting plate 307 through the bearing to realize the movable connection between the drip bucket 303 and the connecting seat 305. When the slide 205 drives the first lifting assembly 3 to move above the dipping position, the controller 6 sends a descending signal to the hydraulic cylinder 301. The output end of the hydraulic cylinder 301 is extended, driving the lifting seat 302, the connecting seat 305 and the drip bucket 303 to descend synchronously, so that the drip bucket 303 and the motor stator inside gradually immerse in the insulating paint of the dipping tank 7. After the dipping is completed, the controller 6 sends an ascending signal to the hydraulic cylinder 301. The output end of the hydraulic cylinder 301 is retracted, driving the drip bucket 303 and the motor stator to ascend above the dipping tank 7 to perform the paint dripping operation. The hydraulic cylinder 301 has large load capacity, which can drive multiple drip buckets 303 and motor stators to lift at the same time, meeting the batch dipping demand. During the lifting process, the lifting speed of the hydraulic cylinder 301 can be adjusted through the controller 6. When descending, it can slowly immerse to avoid paint splashing. When ascending, it can ascend at a uniform speed to ensure uniform paint dripping. Compared with the cylinder lifting, the load capacity is stronger, the lifting stability is better, and it is suitable for heavy motor stator dipping operation.

[0033] As Figure 3 、 Figure 5As shown, in the middle of the front side wall and the middle of the rear side wall of each draining barrel 303, a threaded sleeve 308 is fixedly installed by welding, the inner thread of the threaded sleeve 308 matches the outer thread of the screw rod 309; the front side wall and the rear side wall of each threaded sleeve 308 are respectively threadedly connected with the screw rod 309, one end of the screw rod 309 is rotationally connected with a clamp 310, the inner side wall of the clamp 310 is pasted with a rubber pad to increase friction and avoid damaging the surface of the motor stator, and the outer side wall of the clamp 310 is slidably attached to the inner side wall of the draining barrel 303 to ensure that the clamp 310 can only move in the front-rear direction of the draining barrel 303; the other end of each screw rod 309 is fixedly installed with a locking nut 304 by welding, the locking nut 304 is located on the front side and the rear side of the corresponding draining barrel 303, facilitating the operator to rotate the screw rod 309; at the feeding and discharging stations, the operator places the motor stator to be dipped into paint into the draining barrel 303, then rotates the locking nuts 304 on the front side and the rear side of the draining barrel 303 to drive the screw rod 309 to move along the axial direction of the threaded sleeve 308, and then drives the clamp 310 to move towards the motor stator until the two clamps 310 clamp and fix the motor stator; after the dipping is completed, the locking nuts 304 are rotated in the opposite direction to drive the clamps 310 away from the motor stator, and then the motor stator after dipping paint can be taken out; through the cooperation of the screw rod 309 and the threaded sleeve 308, the clamp 310 can be finely adjusted, which is suitable for fixing motor stators of different sizes and has strong universality; the rubber pad on the inner side of the clamp 310 can avoid damaging the surface of the motor stator during clamping to ensure product quality; the locking nuts 304 are convenient for the operator to manually operate, and the threaded connection has self-locking property to prevent the motor stator from loosening during lifting and swinging.

[0034] As shown in Figure 5 At the bottom of each draining barrel 303, a filter plate 311 is fixedly installed by bolts, the filter plate 311 is made of stainless steel filter screen with a mesh diameter of 0.5-1 mm to filter impurities in paint; on the outer side wall of each draining barrel 303, a plurality of groups of draining holes with a diameter of 2-3 mm are arranged in a polar peripheral array, the draining holes are uniformly distributed on the side wall of the draining barrel 303 to ensure that paint can flow out from all directions during draining, when the draining barrel 303 is immersed in paint, the paint can enter the interior of the draining barrel 303 through the draining holes and the mesh holes of the filter plate 311 to fully contact with the motor stator; after the dipping is completed, the draining barrel 303 is lifted above the dipping tank 7, the excess paint on the surface of the motor stator flows out through the draining holes and the mesh holes of the filter plate 311 and returns to the dipping tank 7, at the same time, the filter plate 311 can filter impurities possibly falling off from the surface of the motor stator to avoid the impurities from entering the dipping tank 7 to pollute the paint, the filter plate 311 can prevent impurities from polluting the paint to ensure the purity of the paint and improve the dipping quality of the motor stator; the polar peripheral array of the draining holes can make the paint quickly and uniformly flow out to shorten the draining time, at the same time, the excess paint returns to the dipping tank 7 to reduce the waste of paint.

[0035] As shown in Figure 3 ,Figure 4 、 Figure 6As shown, the secondary lifting assembly 4 includes a cylinder 401 mounted on one side of the inner side wall of the lifting seat 302 by bolts, the cylinder 401 is a small cylinder with fast extension and retraction speed and can realize high frequency action, two limiting plates 402 are mounted on the top of the lifting seat 302 by bolts, the limiting plates 402 are provided with through holes for sliding guide of the displacement rod 403, the output end of the hydraulic cylinder 301 is connected with the displacement rod 403 through a pin shaft, one end of the displacement rod 403 slides through the side walls of the two limiting plates 402 and the side wall of the lifting seat 302, and the one end of the displacement rod 403 is fixedly connected with a limiting disc 406 by welding, the diameter of the limiting disc 406 is larger than that of the displacement rod 403, so that the displacement rod 403 can be prevented from being pulled out of the limiting plate 402 during sliding, the limiting disc 406 is slidingly connected on one side of the lifting seat 302, a plurality of groups of fixing sleeves 405 corresponding to the number of the connecting seats 305 are mounted on the outer side wall of the displacement rod 403 by keys, each group of the fixing sleeves 405 includes two fixing sleeves symmetrically distributed on the two sides of the displacement rod 403, the front side wall of each fixing sleeve 405 is fixedly mounted with a transmission rod 409 by welding, the front side wall of the transmission rod 409 is slidingly connected with an L-shaped swing plate 407, the front side wall of the L-shaped swing plate 407 is provided with a sliding groove 40701 above and below the front side wall, the sliding groove 40701 is a long strip hole, the front side wall of each transmission rod 409 is slidingly clamped on the inner side wall of the corresponding sliding groove 40701 through a bearing, a plurality of fixing plates 404 corresponding to the number of the L-shaped swing plates 407 are mounted on the top of the lifting seat 302 by bolts, the front side wall of each fixing plate 404 is fixedly mounted with a shaft rod 410 by welding, the shaft rod 410 is rotatably connected with the shaft of the corresponding L-shaped swing plate 407 through a bearing, so that the L-shaped swing plate 407 can rotate around the shaft rod 410, in addition, a plurality of sliding sleeves 408 corresponding to the number of the L-shaped swing plates 407 are mounted on the top of the lifting seat 302 by bolts, the inner side wall of each sliding sleeve 408 is slidingly connected with a sliding rod 306, the sliding rods 306 are two by two, the bottoms of each group of the sliding rods 306 are fixedly connected with the top of the corresponding connecting seat 305 by bolts; the front side wall of each sliding rod 306 is fixedly mounted with a driven rod 411 by welding, the driven rod 411 is slidingly clamped on the inner side wall of the corresponding sliding groove 40701 through a bearing, when the bucket 303 is lowered into the paint dipping pool 7 for dipping, the controller 6 sends an extension and retraction signal to the cylinder 401, the output end of the cylinder 401 drives the displacement rod 403 to reciprocatingly slide along the through hole of the limiting plate 402; when the displacement rod 403 slides, the fixing sleeves 405 and the transmission rods 409 are driven to move synchronously, the transmission rods 409 slide in the sliding grooves 40701 of the L-shaped swing plates 407, since the L-shaped swing plates 407 rotate around the shaft rod 410, the sliding of the transmission rods 409 is converted into reciprocating swing of the L-shaped swing plates 407;When the L-shaped swing plate 407 swings, the slide groove 40701 below it drives the driven rod 411 to move up and down, and in turn drives the sliding rod 306 to slide up and down along the inner side wall of the sliding sleeve 408, and the sliding rod 306 drives the connecting seat 305 to swing up and down with the bucket 303, and cooperates with the swing assembly 5 to realize the multi-angle swing of the bucket 303. The displacement rod 403 is driven by the cylinder 401 to reciprocate, and cooperates with the transmission of the L-shaped swing plate 407, the transmission rod 409 and the driven rod 411 to realize the up-down sliding of the sliding rod 306, and in turn drives the bucket 303 to swing, so that the motor stator is fully contacted with the paint during the paint dipping process, and the dead angle of uneven paint coverage on the surface of the motor stator is avoided. The action frequency of the cylinder 401 can be adjusted by the controller 6 to adapt to the paint dipping needs of different motor stators, and when the paint dipping is completed, the bucket 303 can be slightly lifted up and down by the secondary lifting assembly to improve the paint dripping speed and further improve the work efficiency.

[0036] As shown in Figure 6 , Figure 7 , the swing assembly 5 includes a rotating rod 501, a driven gear 502 and a rack 503. One end of the rotating rod 501 is fixedly connected with the side wall of the bucket 303 by welding, the other end is rotatably penetrated through the side wall of the connecting plate 307, and then is fixedly connected with the driven gear 502 through a flat key. The rack 503 is fixedly installed on the inner side wall of the paint dipping pool 7 by bolts, and the tooth surface of the rack 503 is engaged with the tooth surface of the driven gear 502, so that the driven gear 502 can roll along the rack 503 during the lifting of the bucket 303. When the primary lifting assembly 3 drives the bucket 303 to descend, the driven gears 502 on both sides of the bucket 303 descend synchronously with the bucket 303. Since the driven gears 502 are engaged with the rack 503 on the inner side wall of the paint dipping pool 7, the rack 503 generates a force on the driven gear 502 during the descending process, so that the driven gear 502 rotates around the axis of the rotating rod 501, and in turn drives the rotating rod 501 and the bucket 303 to rotate and swing synchronously. Similarly, during the ascending process of the bucket 303, the driven gears 502 ascend along the rack 503 and rotate reversely, and in turn drive the bucket 303 to swing reversely, and cooperate with the up-down swing of the secondary lifting assembly 4 to realize the compound swing of the bucket 303, improve the paint dipping efficiency, and when the bucket 303 rotates and swings in the paint dipping pool 7, the outer side wall and the filter plate 311 inside the bucket 303 will continuously disturb the insulating paint in the paint dipping pool 7. On the one hand, the rotation and swing drive the paint to form a circulating flow around the center of the paint dipping pool 7, breaking the stratification state of the paint when it is at rest. On the other hand, the up-down swing promotes the convection of the paint in the vertical direction, disperses the possible precipitates at the bottom of the paint dipping pool 7, and avoids the adhesion of the precipitates to the surface of the stator. Compared with the prior art, the present scheme does not need to additionally configure a paint stirring device, which not only reduces the equipment procurement and operation energy consumption cost, but also ensures the uniformity of the insulating paint composition, and further improves the stability of the stator paint dipping quality.

[0037] It should be noted that the motor stator lifting paint dipping mechanism, first of all, in the processing workshop horizontal ground through the expansion bolt fixed base 1, its Q235 steel plate welded structure provides stable support for the mechanism, the middle rear side of the base 1 top bolt 304 stainless steel material dipping tank 7, the inner wall is polished smooth to prevent paint agglomeration, the inside is injected with sufficient amount of insulating paint for standby, the operator puts the motor stator to be dipped into the sink 303, rotates the locking nut 304 on the front and rear side of the sink 303, drives the screw rod 309 to move along the threaded sleeve 308 in the axial direction, pushes the clamp 310 with rubber pad on the inside to clamp the stator, the self-locking screw prevents subsequent loosening, then the controller 6 sends a signal to the servo motor 202, the servo motor 202 drives the synchronous box 201 in the synchronous wheel and synchronous belt to rotate, so that the two lead screws 204 rotate in the same direction, the outer threaded sleeve moves along the rectangular slide of the mounting seat 203, drives the multi-stage lifting assembly and the sink 303 to switch from the feeding and discharging station to the paint dipping station directly above the paint dipping tank 7.

[0038] After the paint dipping station is ready, the controller 6 sends a descending signal to the hydraulic cylinder 301, the output end of the hydraulic cylinder 301 extends, drives the aluminum alloy lifting seat 302 to descend, the bottom connecting seat 305 of the lifting seat 302 drives the sink 303 and the stator to slowly dip into the insulating paint in the paint dipping tank 7, avoids paint splashing, at the same time starts the composite swing uniform paint: then the secondary lifting assembly 4 acts on the sink 303 to rise and fall, at the same time the driven gear 502 at the end of the rotating rod 501 engages with the internal wall rack 503 of the paint dipping tank 7, the rack 503 force makes the driven gear 502 rotate, drives the sink 303 to swing; on the other hand, the controller 6 controls the cylinder 401 to extend and retract, drives the displacement rod 403 to slide back and forth along the limiting plate 402, the fixed sleeve 405 on the displacement rod 403 drives the transmission rod 409 to slide in the groove 40701 above the L-shaped swing plate 407, makes the L-shaped swing plate 407 swing around the shaft rod 410, the lower groove 40701 drives the driven rod 411 and the sliding rod 306 to slide up and down along the sliding sleeve 408, in turn makes the sink 303 swing up and down slightly, two kinds of swing cooperation eliminates the dead angle of stator paint coverage.

[0039] After the completion of the paint dipping, the controller 6 sends an ascending signal to the hydraulic cylinder 301, and the output end of the hydraulic cylinder 301 is retracted to drive the lifting seat 302 and the draining bucket 303 to ascend above the paint dipping pool 7, and the excess paint on the surface of the stator is discharged through the 2-3 mm diameter draining holes arranged in the circumferential array on the side wall of the draining bucket 303 and the 0.5-1 mm mesh stainless steel filter plate 311 at the bottom, and then flows back to the paint dipping pool 7 for recycling, and the filter plate 311 filters the impurities dropped from the stator at the same time to prevent the paint from being contaminated, and the secondary lifting assembly 4 can be synchronously and slightly lifted to accelerate the paint draining speed, and after the completion of the paint draining, the controller 6 controls the servo motor 202 to rotate reversely, and the synchronous wheel, the synchronous belt and the screw rod 204 drive the sliding seat 205 and the draining bucket 303 to return to the feeding and discharging station, the operator reversely rotates the locking nut 304 to drive the screw rod 309 and the clamp 310 to move away from the stator, and the stator after the completion of the paint dipping is taken out, and the single operation is completed, and the next batch of stator paint dipping can be repeated.

[0040] The controller 6 is a PLC programmable controller, which is fixed to the side wall of any sliding seat 205 and is electrically connected with the servo motor 202, the hydraulic cylinder 301 and the air cylinder 401 through wires, and the core function is to preset the action time sequence of each component, for example, after the servo motor 202 drives the sliding seat 205 to be in place, the hydraulic cylinder 301 is triggered to start descending, after the hydraulic cylinder 301 drives the draining bucket 303 to descend to the preset paint dipping position, the air cylinder 401 is triggered to start swinging, and after the paint dipping and paint draining time reaches the set value, the ascending and returning station actions are automatically triggered, and through the automatic time sequence control, the manual intervention is greatly reduced, the cooperation of each component is ensured, and the overall operation efficiency and the consistency of the stator paint dipping quality are improved.

[0041] The above-described embodiments only express several embodiments of the present application, the description is more specific and detailed, but it cannot be understood as the limitation of the patent scope of the present application, and it should be pointed out that, for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which belong to the protection scope of the present application.

Claims

1. A stator lifting and dipping mechanism for an electric machine, comprising a base, a dipping tank is fixedly installed in the middle rear position of the top of the base, characterized in that: The top of the base is provided with an up-and-down feeding displacement assembly, the top of the up-and-down feeding displacement assembly is slidably connected with a multi-stage lifting assembly, the multi-stage lifting assembly comprises a first-stage lifting assembly and a second-stage lifting assembly, the second-stage lifting assembly is arranged on the first-stage lifting assembly, a plurality of drip buckets are movably connected to the first-stage lifting assembly, the two side walls of each drip bucket are fixedly connected with a swing assembly, the swing assembly cooperates with the second-stage lifting assembly, each swing assembly comprises a rotating rod fixedly installed on the two side walls of the corresponding drip bucket, and two driven gears are fixedly connected to the two ends of each rotating rod; a plurality of racks are fixedly installed on the inner side wall of the paint dipping tank, and each rack cooperates with the corresponding driven gear; The up-and-down feeding displacement assembly comprises mounting seats fixedly installed on the top of the base and located at both sides of the paint dipping tank, the inner side walls of the two mounting seats are rotatably connected with lead screws, and the outer side walls of the two lead screws are threadedly sleeved with sliding seats slidably connected in the corresponding mounting seats; The first-stage lifting assembly comprises two hydraulic cylinders fixedly installed on the top of the corresponding sliding seat; The second-stage lifting assembly comprises a gas cylinder installed on one side of the inner side wall of the lifting seat, limiting plates are installed on the top of the lifting seat and located at both sides of the middle, the output end of the gas cylinder is connected with a displacement rod, and one end of the displacement rod slidably penetrates the side walls of the two limiting plates and the side wall of the lifting seat; The outer side wall of the displacement rod is fixedly installed with a plurality of groups of fixed sleeves corresponding to the number of connecting seats, each group of fixed sleeves comprises two fixed sleeves, the front side wall of each fixed sleeve is fixedly installed with a transmission rod, the front side wall of the transmission rod is slidably connected with an L-shaped swing plate, the front side wall of each L-shaped swing plate is provided with a sliding groove above and below the front side wall, the front side wall of each transmission rod is slidably connected to the inner side wall of the corresponding sliding groove, the top of the lifting seat is installed with a plurality of fixed plates corresponding to the number of L-shaped swing plates, the front side wall of each fixed plate is fixedly installed with a shaft rod rotatably penetrating the front side wall of the corresponding L-shaped swing plate, and the top of the lifting seat is installed with a plurality of sliding sleeves corresponding to the number of L-shaped swing plates, the inner side wall of each sliding sleeve is slidably connected with a sliding rod, and the front side wall of each sliding rod is fixedly installed with a driven rod slidably connected to the inner side wall of the corresponding sliding groove.

2. The stator hoisting and dipping mechanism of the electric machine according to claim 1, characterized in that: The front side walls of the two mounting seats are jointly provided with a synchronous box, the synchronous box comprises two synchronous wheels installed in the synchronous box, the outer side walls of the two synchronous wheels are jointly sleeved with a synchronous belt, one end of each lead screw rotatably penetrates the rear side wall of the synchronous box, and one end of each lead screw is fixedly connected to the rear side wall of the corresponding synchronous wheel, and the front side wall of the synchronous box is fixedly installed with a servo motor fixedly connected to the front side wall of the synchronous wheel.

3. The stator hoisting and dipping mechanism of the electric machine according to claim 2, characterized in that: The bottom of the lifting seat is provided with connecting seats corresponding to the number of drip buckets, the two side walls of each connecting seat are fixedly installed with a connecting plate, and each rotating rod rotatably penetrates the side wall of the corresponding connecting plate.

4. The stator hoisting and dipping mechanism of the electric machine according to claim 3, characterized in that: The front side wall and the rear side wall of each thread sleeve are respectively threaded through and connected with a screw rod, one end of each screw rod is connected with a clamp rotatingly connected in the corresponding leaching barrel, and the other end of each screw rod is fixedly installed with a locking nut located at the front side and the rear side of the corresponding leaching barrel.

5. The stator hoisting and dipping mechanism of the electric machine according to claim 4, characterized in that: The bottom of each leaching barrel is fixedly installed with a filter plate, and the outer side wall of each leaching barrel is provided with a plurality of groups of leaching holes arranged in an array along the circumference.

6. The stator hoisting and dipping mechanism of the electric machine according to claim 1, characterized in that: The plurality of slide rods are in pairs, and the bottom of each group of slide rods is fixedly connected with the top of the corresponding connecting seat.

7. The stator hoisting and dipping mechanism of the electric machine according to claim 1, characterized in that: One end of the displacement rod is fixedly connected with a limiting disc which is slidingly connected to one side of the lifting seat.

8. A mechanism for lifting and dipping a stator of an electric machine according to claim 3, characterized in that: The sidewall of any slide seat is fixedly installed with a controller which is electrically connected with the servo motor.

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