A coating spraying device for motor machining and a spraying method thereof

Abstract

The application relates to the technical field of spraying devices, in particular to a coating spraying device for motor machining and a spraying method thereof. The coating spraying device comprises a spraying box, the inside of the spraying box is provided with a spraying cavity and two equipment cavities, the two equipment cavities are symmetrically arranged on the two sides of the spraying cavity; the inside of the spraying cavity is provided with a rotating mechanism, the rotating mechanism is used for driving the rotation of a motor rotor in the spraying cavity; the inside of the spraying cavity is symmetrically provided with two shielding barrels, the opposite sides of the two shielding barrels are both provided with linear thread driving mechanisms; the coating spraying device does not need to stick shielding sleeves on each motor rotor, the linear thread driving mechanisms are used for automatically installing and dismounting the motor shielding sleeves, the operation is simple and convenient, and the automatic production is facilitated.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of spraying device, especially to a coating spraying device for motor machining and a spraying method thereof. BACKGROUND

[0002] The motor rotor is commonly referred to as the rotating part in the motor.

[0003] Some patents related to spraying devices are disclosed in the prior art. A Chinese patent with application number 201621375432.1 discloses an automatic motor rotor spraying device, which comprises a support frame, a rotating assembly and a spraying assembly arranged on the support frame. The top end of the support frame has a running track inclined from the feeding end to the discharging end. The running track has a first positioning groove for placing the rotor to be sprayed and a second positioning groove for placing the rotor being sprayed along the inclined direction of the running track. The rotating assembly is located below the second positioning groove to drive the rotor on the second positioning groove to rotate. The first positioning groove is also provided with a positioning adjusting assembly to make the rotor on the first positioning groove enter the second positioning groove and / or the rotor in the second positioning groove to be output.

[0004] In the prior art, the shaft position of the motor rotor needs to be shielded during the spraying process. However, the existing shielding method requires that a shielding sleeve be attached to each end of the rotor before spraying, and then the shielding sleeve is removed one by one after spraying. After cleaning the shielding sleeve, it is installed again. During the machining process, repeated disassembly and assembly are required, which is relatively cumbersome and not conducive to rapid machining. SUMMARY

[0005] The present application aims to solve the problems existing in the prior art and provides a coating spraying device for motor machining and a spraying method thereof.

[0006] To achieve the above purpose, the technical solution adopted by the present application is as follows: a coating spraying device for motor machining, comprising a spraying box, wherein the inside of the spraying box is provided with a spraying cavity and two equipment cavities, and the two equipment cavities are symmetrically arranged on both sides of the spraying cavity.

[0007] The inside of the spraying cavity is provided with a rotating mechanism, which is used to drive the motor rotor to rotate inside the spraying cavity.

[0008] The inside of the spraying cavity is symmetrically provided with two shielding cylinders, and the opposite sides of the two shielding cylinders are provided with linear screw drive mechanisms, which are used to drive the two shielding cylinders to approach each other.

[0009] The inside bottom surface of the spraying box is provided with a spraying mechanism, which is used to spray the surface of the motor rotor.

[0010] The end of the shielding cylinder is provided with a scraping cleaning mechanism, which is used for scraping and cleaning the paint on the surface of the shielding cylinder during the process of moving the two shielding cylinders away from each other to cancel the shielding at the shaft of the motor rotor.

[0011] Preferably, the scraping cleaning mechanism comprises a pushing ring, a scraping ring, a blocking plate and a plurality of sliding grooves, the pushing ring is arranged at the end of the shielding cylinder, the scraping ring is sleeved on the outer wall of the shielding cylinder, a plurality of sliding grooves are arranged in a circumferential array on the surface of the shielding cylinder, a connecting strip is fixed on the surface of the pushing ring, one end of the connecting strip away from the pushing ring extends to the inside of the shielding cylinder and is fixed with a sliding block, the sliding block penetrates through the sliding groove and is fixed with the surface of the scraping ring, and the blocking plate is fixed on the inner wall of the spraying cavity.

[0012] Preferably, a first spring is fixed between the sliding block and the inner wall of the sliding groove, a folding protective cover is sleeved on the outer side of the first spring, one end of the folding protective cover is fixed on the inner wall of the sliding groove, and the other end of the folding protective cover is fixed on the sliding block.

[0013] Preferably, a rotating ring is rotatably connected to the surface of the pushing ring away from the scraping ring, and a sealing ring is fixed to the side of the rotating ring away from the pushing ring.

[0014] Preferably, guide inclined surfaces are arranged on the surfaces of the pushing ring, the rotating ring and the sealing ring, and the guide inclined surfaces are inclined towards the side close to the scraping ring.

[0015] Preferably, an annular scraping strip is rotatably connected to the scraping end of the scraping ring, a guide groove is arranged on the side wall of the shielding cylinder, a guide pin is slidably connected to the inside of the guide groove, the end of the guide pin penetrates through the guide groove and is fixed on the inner surface of the annular scraping strip, an L-shaped plate is fixed on the surface of the shielding cylinder, scraping pieces are arranged on the two sides of the L-shaped plate, and the surfaces of the two scraping pieces are in contact with the scraping surface of the annular scraping strip.

[0016] Preferably, two fixed pieces are symmetrically fixed on the inner annular surface of the shielding cylinder, guide rods are fixed on the surfaces of the two fixed pieces, limit pieces are fixed on the ends of the guide rods, sliding plates are slidably connected to the two guide rods, a shielding piece is commonly fixed on the top surfaces of the two sliding plates, and a second spring is commonly fixed between the sliding plate and the corresponding fixed piece.

[0017] Preferably, two limit strips are symmetrically fixed on the surface of the shielding piece, a guide block is fixed on the limit strip away from the motor rotor, and an inclined surface is arranged on the guide block.

[0018] Preferably, the lower part of the spraying cavity is provided with a collecting cavity, and a plurality of strip-shaped through holes are equidistantly arranged on the inner bottom surface of the spraying cavity.

[0019] A spraying method of a coating spraying device for motor machining, the spraying method comprising the following steps:

[0020] Step one, automatic shielding: placing the motor rotor inside the spraying cavity, driving the shielding cylinder to move to the side close to the motor rotor through the linear screw driving mechanism, and shielding the shaft position of the motor rotor;

[0021] Step two, uniform spraying: after the shielding of the motor rotor is completed, spraying the surface of the motor rotor through the spraying mechanism, and rotating the motor rotor through the rotating mechanism, so that the motor rotor can rotate during the spraying process;

[0022] Step three, scraping and cleaning: after the spraying is completed, driving the shielding cylinder to move to the side away from the motor rotor through the linear screw driving mechanism, and scraping and cleaning the adhered coating on the surface of the shielding cylinder through the scraping and cleaning mechanism during the movement of the shielding cylinder.

[0023] Compared with the prior art, the present application has the following beneficial effects:

[0024] I. The shaft of the motor rotor is placed between the two rotating rollers, the motor rotor is supported by the rotating rollers, then the second motor is started, the output shaft of the second motor drives the screw to rotate, under the action of the threaded connection and the guiding and limiting action of the slide rod, the shielding cylinder can be driven to move to the side close to the motor rotor and contact the end of the rotor core, shielding the shaft position of the motor rotor, this embodiment does not need to adhere the shielding sleeve to each motor rotor, the linear screw driving mechanism is used to automatically install and dismount the motor shielding sleeve, which is simple and convenient to operate and facilitates automatic production.

[0025] II. After the spraying is completed, the linear screw driving mechanism is started to drive the shielding cylinder to move to the side away from the motor rotor, and the adhered coating on the surface of the shielding cylinder is scraped and cleaned through the scraping and cleaning mechanism during the movement of the shielding cylinder, which facilitates the shielding of the shaft of the next motor rotor, avoids the accumulation of too much coating on the surface of the shielding cylinder, prevents the coating from adhering to the next motor rotor, affects the spraying effect, and further helps to ensure the spraying effect of the motor rotor.

[0026] III. In the process of scraping by the scraping ring, the annular scraping strip is driven to move synchronously, the guide pin moves synchronously with the annular scraping strip and slides in the guide groove, and under the guide cooperation of the guide groove and the guide pin, the annular scraping strip rotates in the moving process, in the rotating process, the paint adhered to the surface of the annular scraping strip is scraped off by the scraping piece, thereby facilitating the avoidance of the paint adhering to the annular scraping strip. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is a method flow structure schematic diagram of the application.

[0028] Figure 2 It is a whole structure schematic diagram of the application.

[0029] Figure 3 It is a whole cross-section structure schematic diagram of the application Figure 1 .

[0030] Figure 4 It is an enlarged structure schematic diagram of A in the application Figure 3 .

[0031] Figure 5 It is an enlarged structure schematic diagram of B in the application Figure 3 .

[0032] Figure 6 It is a whole structure schematic diagram of the application (after the shielding cylinder is removed).

[0033] Figure 7 It is an enlarged structure schematic diagram of C in the application Figure 6 .

[0034] Figure 8 It is a cross-section structure schematic diagram of the shielding cylinder in the application Figure 1 .

[0035] Figure 9 It is an enlarged structure schematic diagram of D in the application Figure 8 .

[0036] Figure 10 It is an enlarged structure schematic diagram of E in the application Figure 8 .

[0037] Figure 11 It is a structure schematic diagram of the shielding cylinder in the application Figure 1 .

[0038] Figure 12 It is an enlarged structure schematic diagram of F in the application Figure 11 .

[0039] Figure 13 It is a structure schematic diagram of the shielding cylinder in the application Figure 2 .

[0040] Figure 14 Schematic diagram of sectional structure of shielding cylinder of the application Figure 2 .

[0041] Figure 15 Schematic diagram of overall slope structure of the application Figure 2 .

[0042] In the figure: 1, spraying box; 2, spraying cavity; 3, equipment cavity; 4, motor rotor; 401, rotating shaft; 402, rotor core; 5, shielding cylinder; 6, support plate; 7, first motor; 8, rotating roller; 9, rubber ring; 10, second motor; 11, screw rod; 12, sliding rod; 13, connecting strip; 14, storage box; 15, fixed plate; 16, moving block; 17, reciprocating screw rod; 18, light pole; 19, third motor; 20, spray head; 21, pushing ring; 22, scraping ring; 23, blocking plate; 24, sliding chute; 25, sliding block; 26, first spring; 27, folding protective cover; 28, rotating ring; 29, sealing ring; 30, guide slope; 31, annular scraping strip; 32, guide groove; 33, guide pin; 34, L-shaped plate; 35, scraping piece; 36, fixed piece; 37, guide rail rod; 38, limiting piece; 39, sliding plate; 40, shielding piece; 41, second spring; 42, limiting strip; 43, guide block; 44, collecting cavity; 45, strip-shaped through hole; 46, connecting plate. DETAILED DESCRIPTION

[0043] The following description is provided to enable those skilled in the art to practice the application. The preferred embodiments described herein are only examples of the application and it should be apparent to those skilled in the art that variations can be made to the preferred embodiments described herein without departing from the spirit and scope of the application.

[0044] As Figures 2 to 15The embodiment of the motor machining coating spraying device shown comprises a spraying box 1, a spraying cavity 2 and two equipment cavities 3 are arranged in the spraying box 1, the two equipment cavities 3 are symmetrically arranged on the two sides of the spraying cavity 2, a rotating mechanism is arranged in the spraying cavity 2, the rotating mechanism is used for driving a motor rotor 4 to rotate in the spraying cavity 2, two shielding cylinders 5 are symmetrically arranged in the spraying cavity 2, straight thread driving mechanisms are arranged on the opposite sides of the two shielding cylinders 5, the straight thread driving mechanisms are used for driving the two shielding cylinders 5 to move close to each other, a spraying mechanism is arranged on the inner bottom surface of the spraying box 1, the spraying mechanism is used for spraying the surface of the motor rotor 4, a scraping cleaning mechanism is arranged at the end of the shielding cylinder 5, and the scraping cleaning mechanism is used for scraping and cleaning the coating on the surface of the shielding cylinder 5 during the process that the two shielding cylinders 5 move away from each other and cancel the shielding of the rotating shaft 401 of the motor rotor 4.

[0045] The straight thread driving mechanism comprises a second motor 10, a screw rod 11 and a sliding rod 12, the second motor 10 is fixed in the equipment cavity 3, the output shaft of the second motor 10 penetrates through the equipment cavity 3 and is fixed with the screw rod 11 after extending into the spraying cavity 2, the screw rod 11 is threadedly connected with the shielding cylinder 5, the sliding rod 12 is slidingly connected with the shielding cylinder 5, one end of the sliding rod 12 is fixed on the inner wall of the spraying cavity 2, the sliding rod 12 and the screw rod 11, away from the second motor 10, are each provided with a connecting plate 46, the sliding rod 12 is fixed on the surface of the corresponding connecting plate 46, and the screw rod 11 is rotationally connected to the surface of the corresponding connecting plate 46, and the bottom ends of the two connecting plates 46 are fixed on the inner bottom surface of the spraying cavity 2.

[0046] The spraying mechanism comprises a storage box 14 and two fixed plates 15, the two fixed plates 15 are fixed on the inner bottom surface of the spraying cavity 2, a moving block 16 is arranged between the two fixed plates 15, a reciprocating screw rod 17 is threadedly connected to the moving block 16, a light rod 18 is slidably inserted into the moving block 16, the two ends of the reciprocating screw rod 17 are rotationally connected to the two fixed plates 15 respectively, the two ends of the light rod 18 are fixed to the two fixed plates 15 respectively, a third motor 19 is coaxially fixed to one end of the reciprocating screw rod 17, the third motor 19 is fixed to the fixed plate 15, a spray head 20 is fixed to the top surface of the moving block 16, the spray head 20 is internally provided with a pumping device, the storage box 14 is fixed inside the spraying box 1, the pumping device on the spray head 20 is in communication with the storage box 14 through a hose, and the pumping device can suck the paint in the spraying box 1 and spray it out of the spray head 20;

[0047] In use, the rotating shaft 401 of the motor rotor 4 is placed between the two rotating rollers 8, the motor rotor 4 is supported by the rotating rollers 8, then the second motor 10 is started, the output shaft of the second motor 10 drives the screw rod 11 to rotate, under the thread connection and the guiding and limiting action of the slide rod 12, the shielding cylinder 5 can be driven to move to the side close to the motor rotor 4 and contact the end of the rotor core 402, thereby shielding the position of the rotating shaft 401 of the motor rotor 4, and the embodiment does not need to stick a shielding sleeve on each motor rotor 4, the linear thread driving mechanism is used to automatically install and remove the motor shielding sleeve, which is simple and convenient to operate and is convenient for automatic production.

[0048] When the motor rotor 4 is shielded, the paint in the storage box 14 is sprayed out by starting the spray head 20, the reciprocating screw rod 17 is driven to rotate by starting the third motor 19, under the thread connection and the guiding and limiting action of the light rod 18, the moving block 16 and the spray head 20 can be driven to reciprocate between the two fixed plates 15, and the rotating roller 8 connected to the output shaft of the first motor 7 is driven to rotate by starting the first motor 7, the rotating roller 8 is provided with a rubber ring 9, the rotating roller 8 can drive the rubber ring 9 to rotate synchronously, under the friction force of the rubber ring 9, the rotating shaft 401 of the motor rotor 4 can be driven to rotate, so that the motor rotor 4 can rotate during the spraying process, which is conducive to uniformly spraying the surface of the rotor core 402.

[0049] After the spraying is completed, the linear thread driving mechanism is started to drive the shielding cylinder 5 to move away from the motor rotor 4, and in the process of moving the shielding cylinder 5, the adhered paint on the surface of the shielding cylinder 5 is scraped and cleaned by the scraping and cleaning mechanism, which is convenient for shielding the rotating shaft 401 of the next motor rotor 4 to be processed, avoids the accumulation of too much paint on the surface of the shielding cylinder 5, prevents the paint from adhering to the next motor rotor 4, and avoids affecting the spraying effect, thereby being conducive to ensuring the spraying effect of the motor rotor 4.

[0050] As a further embodiment of the present application, the scraping cleaning mechanism comprises a pushing ring 21, a scraping ring 22, a blocking plate 23 and a plurality of sliding grooves 24, the pushing ring 21 is arranged at the end of the shielding cylinder 5, the scraping ring 22 is sleeved on the outer wall of the shielding cylinder 5, the plurality of sliding grooves 24 are arranged in a circumferential array on the surface of the shielding cylinder 5, the surface of the pushing ring 21 is fixed with a connecting strip 13, the end of the connecting strip 13 away from the pushing ring 21 is fixed with a sliding block 25 inside the shielding cylinder 5, the sliding block 25 is fixed with the surface of the scraping ring 22 after penetrating the sliding groove 24, the blocking plate 23 is fixed on the inner wall of the spraying cavity 2, and the blocking plate 23 is in contact with the scraping ring 22 during the movement of the shielding cylinder 5 away from the motor rotor 4; in operation, before spraying, when the shielding cylinder 5 moves towards the motor rotor 4, the pushing ring 21 first contacts the end of the rotor core 402, and the pushing ring 21 stops moving under the blocking action of the rotor core 402, and the scraping ring 22 stops moving under the connecting action of the connecting strip 13, at this time, the shielding cylinder 5 continues to move until the end of the shielding cylinder 5 contacts the pushing ring 21;

[0051] When the ends of the rotor core 402 are sprayed, the paint is sprayed onto the surface of the shielding cylinder 5, and after spraying is completed, during the process of pulling the shielding cylinder 5 back to the original position, first, the scraping ring 22 and the pushing ring 21 move away from the motor rotor 4 with the shielding cylinder 5, and when the scraping ring 22 contacts the blocking plate 23, the scraping ring 22 moves relative to the shielding cylinder 5 under the blocking action of the blocking plate 23, so that the surface of the shielding cylinder 5 is scraped and cleaned by the scraping ring 22, and the paint adhered to the shielding cylinder 5 is scraped to the outside of the shielding cylinder 5, so that the paint on the surface of the shielding cylinder 5 is not accumulated too much, and the paint adhered to the next motor rotor 4 during the shielding of other motor rotors 4, so that the spraying effect is not affected.

[0052] As a further embodiment of the present application, the first spring 26 is fixed between the sliding block 25 and the inner wall of the sliding groove 24, the folding protective cover 27 is sleeved outside the first spring 26, one end of the folding protective cover 27 is fixed on the inner wall of the sliding groove 24, and the other end of the folding protective cover 27 is fixed on the sliding block 25; in operation, during the movement of the shielding cylinder 5 towards the motor rotor 4, the sliding block 25 pulls the pushing ring 21 through the connecting strip 13 under the pulling action of the first spring 26, so that the pushing ring 21 is in close contact with the end surface of the shielding cylinder 5, and the pushing ring 21 and the scraping ring 22 are prevented from shaking on the shielding cylinder 5 during the movement of the shielding cylinder 5, thereby ensuring the stability of the pushing ring 21 and the scraping ring 22.

[0053] As a further embodiment of the application, the surface of the push ring 21 away from the scraping ring 22 is rotationally connected with a rotating ring 28, and the side away from the push ring 21 is fixed with a sealing ring 29; in operation, the motor rotor 4 rotates during spraying, the push ring 21 is in sliding contact with the end of the rotor core 402, and some paint is easily accumulated in the contact gap between the push ring 21 and the rotor core 402, affecting the spraying effect of the end of the rotor core 402. The embodiment of the application can solve the above problems, and the specific working mode is as follows: when the rotating shaft 401 of the motor rotor 4 is shielded, the sealing ring 29 is in close contact with the end surface of the rotor core 402 by setting the sealing ring 29, so that the gap is avoided, the paint is not accumulated, and the spraying effect of the end of the rotor core 402 is not affected. And by setting the rotating ring 28 in rotational connection with the push ring 21, the sealing ring 29 can always be in close contact with the end surface of the rotor core 402 during the rotation of the motor rotor 4, further ensuring the sealing of the end surface of the rotor core 402, and further ensuring the spraying effect of the end of the rotor core 402.

[0054] As a further embodiment of the application, the surfaces of the push ring 21, the rotating ring 28 and the sealing ring 29 are all provided with guide bevels 30, which are all inclined towards the side close to the scraping ring 22; in operation, the paint on the surfaces of the push ring 21, the rotating ring 28 and the sealing ring 29 is drained by setting the guide bevels 30, reducing the chance of paint sticking to the push ring 21, the rotating ring 28 and the sealing ring 29.

[0055] As a further embodiment of the application, the scraping end of the scraping ring 22 is rotationally connected with an annular scraping strip 31, the side wall of the shielding cylinder 5 is provided with a guide groove 32, the inside of the guide groove 32 is slidingly connected with a guide pin 33, the end of the guide pin 33 is fixed on the inner surface of the annular scraping strip 31 after penetrating through the guide groove 32, and the surface of the shielding cylinder 5 is fixed with an L-shaped plate 34, both sides of the L-shaped plate 34 are provided with scraping pieces 35, and the surfaces of the two scraping pieces 35 are in contact with the scraping surface of the annular scraping strip 31; in operation, since the paint has high viscosity, it is easy to stick to the surface of the scraping ring 22 when scraped directly by the scraping ring 22, and it is difficult to fall off. The embodiment of the application can solve the above problems, and the specific working mode is as follows: in the scraping process of the scraping ring 22, the annular scraping strip 31 is moved synchronously, the guide pin 33 moves synchronously with the annular scraping strip 31 while sliding in the guide groove 32, and the annular scraping strip 31 rotates during movement under the guide cooperation of the guide groove 32 and the guide pin 33. In the rotating process, the paint adhering to the surface of the annular scraping strip 31 is scraped off by the scraping pieces 35, which is conducive to avoiding the paint adhering to the annular scraping strip 31;

[0056] Further implementation, the scraping surface of the annular scraping strip 31 can be arc-shaped, which can prevent the accumulation of paint during scraping and prevent the scraping strip from being stuck.

[0057] As a further embodiment of the present application, two fixed plates 36 are symmetrically fixed on the inner annular surface of the shielding cylinder 5, guide rods 37 are fixed on the surfaces of the two fixed plates 36, limit plates 38 are fixed on the ends of the guide rods 37, sliding plates 39 are slidably connected to the two guide rods 37, a shielding plate 40 is fixed on the top surfaces of the two sliding plates 39, and a second spring 41 is fixed between the sliding plate 39 and the corresponding fixed plate 36. During the scraping process of the paint adhered to the surface of the shielding cylinder 5, the end surface of the shielding cylinder 5 is away from the pushing ring 21, and the paint will directly fall from between the pushing ring 21 and the shielding cylinder 5 to the shaft 401 of the motor rotor 4, causing pollution to the shaft 401. The embodiment of the present application can solve the above problems, and the specific working mode is as follows: under the elastic force of the second spring 41, the sliding plate 39 at the bottom of the shielding plate 40 is in contact with the limit plate 38, and one end of the shielding plate 40 extends to the outside of the shielding cylinder 5. When the shielding cylinder 5 moves towards the side close to the motor rotor 4, the shielding plate 40 is moved to the inside of the shielding cylinder 5 under the blocking action of the motor rotor 4, and the second spring 41 is compressed. When the shielding cylinder 5 moves away from the motor rotor 4, the sliding plate 39 moves the shielding plate 40 to the outside of the shielding cylinder 5 under the elastic pushing action of the second spring 41, so that the shielding plate 40 moves to the bottom of the end of the shielding cylinder 5 before the scraping ring 22 moves. When the scraping ring 22 is scraped and cleaned, the paint falling from the end of the shielding cylinder 5 can directly slide along the surface of the shielding plate 40, thereby avoiding the paint from directly falling onto the shaft 401 during the scraping and cleaning process, and further ensuring the shielding effect of the shaft 401.

[0058] As a further embodiment of the present application, two limit strips 42 are symmetrically fixed on the surface of the shielding plate 40, a guide block 43 is fixed on the limit strip 42 away from the motor rotor 4, and an inclined surface is formed on the guide block 43. During operation, the two sides of the shielding plate 40 are limited by the two limit strips 42, and the paint flowing out of the shielding plate 40 is guided by the guide block 43, so that the paint falling on the shielding plate 40 can fall to the outside of the shielding cylinder 5 along the inclined surface of the guide block 43, thereby avoiding the paint from falling into the shielding cylinder 5 and adhering to the shaft 401 of the motor rotor 4.

[0059] As a further embodiment of the present application, a collecting cavity 44 is arranged below the spraying cavity 2, and a plurality of strip-shaped through holes 45 are equidistantly arranged on the inner bottom surface of the spraying cavity 2; during operation, when the paint falls on the inner bottom surface of the spraying cavity 2, it can directly fall into the collecting cavity 44 through the strip-shaped through holes 45, so as to avoid the paint from accumulating on the inner bottom surface of the spraying cavity 2.

[0060] As shown in Figure 1 a spraying method of a coating spraying device for motor machining, the spraying method comprises the following steps:

[0061] Step one, automatic shielding: the motor rotor 4 is placed in the spraying cavity 2, the shielding cylinder 5 is driven to move to the side close to the motor rotor 4 by the linear thread driving mechanism, and the position of the rotating shaft 401 of the motor rotor 4 is shielded;

[0062] Step two, uniform spraying: after the motor rotor 4 is shielded, the surface of the motor rotor 4 is sprayed by the spraying mechanism, and the motor rotor 4 is driven to rotate by the rotating mechanism, so that the motor rotor 4 can rotate during the spraying process;

[0063] Step three, scraping and cleaning: after the spraying is completed, the linear thread driving mechanism is started to drive the shielding cylinder 5 to move away from the motor rotor 4, and the adhered paint on the surface of the shielding cylinder 5 is scraped and cleaned by the scraping and cleaning mechanism during the movement of the shielding cylinder 5.

[0064] Working principle of the present application:

[0065] In use, the rotating shaft 401 of the motor rotor 4 is placed between the two rotating rollers 8, the motor rotor 4 is supported by the rotating rollers 8, then the second motor 10 is started, the output shaft of the second motor 10 drives the screw rod 11 to rotate, under the action of the threaded connection and the guiding and limiting action of the slide rod 12, the shielding cylinder 5 can be driven to move to the side close to the motor rotor 4 and contact the end of the rotor core 402, the position of the rotating shaft 401 of the motor rotor 4 is shielded, this embodiment does not need to stick a shielding sleeve on each motor rotor 4, the motor shielding sleeve is automatically installed and removed through the linear threaded drive mechanism, the operation is simple and convenient, and the automatic production is facilitated; when the motor rotor 4 is shielded, the paint in the storage box 14 is sprayed out through the start of the spray head 20, and the reciprocating screw rod 17 is driven to rotate through the start of the third motor 19, under the action of the threaded connection and the guiding and limiting action of the light rod 18, the moving block 16 and the spray head 20 can be driven to reciprocate between the two fixed plates 15, and the rotating roller 8 connected with the first motor 7 is driven to rotate through the start of the first motor 7, the rotating roller 8 is provided with a rubber ring 9, the rotating roller 8 can drive the rubber ring 9 to rotate synchronously, under the action of the friction force of the rubber ring 9, the rotating shaft 401 of the motor rotor 4 can be driven to rotate, so that the motor rotor 4 can rotate during the spraying process, which is beneficial to uniformly spray the surface of the rotor core 402; after the spraying is completed, the shielding cylinder 5 is driven to move away from the motor rotor 4 through the start of the linear threaded drive mechanism, and the adhered paint on the surface of the shielding cylinder 5 is scraped and cleaned through the scraping and cleaning mechanism during the movement of the shielding cylinder 5, so as to shield the rotating shaft 401 of the next motor rotor 4, avoid the accumulation of too much paint on the surface of the shielding cylinder 5, cause the paint to adhere to the next motor rotor 4, affect the spraying effect, and further facilitate to ensure the spraying effect of the motor rotor 4.

[0066] The basic principles, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited to the above embodiments, the above embodiments and descriptions in the specification are only the principles of the present application, various changes and improvements can be made without departing from the spirit and scope of the present application, these changes and improvements all fall within the scope of the claimed present application, the protection scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A coating spraying device for electrical machine processing, comprising a spraying box (1), characterized in that: The inside of the spraying box (1) is provided with a spraying cavity (2) and two equipment cavities (3), and the two equipment cavities (3) are symmetrically arranged on the two sides of the spraying cavity (2); The inside of the spraying cavity (2) is provided with a rotating mechanism, which is used for driving the motor rotor (4) to rotate in the spraying cavity (2); The inside of the spraying cavity (2) is symmetrically provided with two shielding cylinders (5), and the opposite sides of the two shielding cylinders (5) are provided with linear thread driving mechanisms, which are used for driving the two shielding cylinders (5) to move close to each other; The inside bottom surface of the spraying box (1) is provided with a spraying mechanism, which is used for spraying the surface of the motor rotor (4); The end of the shielding cylinder (5) is provided with a scraping cleaning mechanism, which is used for scraping and cleaning the paint on the surface of the shielding cylinder (5) when the two shielding cylinders (5) move away from each other to cancel the shielding of the shaft (401) of the motor rotor (4); The scraping cleaning mechanism comprises a pushing ring (21), a scraping ring (22), a blocking plate (23) and a plurality of sliding grooves (24), the pushing ring (21) is arranged at the end of the shielding cylinder (5), the scraping ring (22) is sleeved on the outer wall of the shielding cylinder (5), a plurality of sliding grooves (24) are arranged in a circumferential array on the surface of the shielding cylinder (5), a connecting strip (13) is fixed on the surface of the pushing ring (21), one end of the connecting strip (13) away from the pushing ring (21) extends into the inside of the shielding cylinder (5) and is fixed with a sliding block (25), the sliding block (25) penetrates the sliding groove (24) and is fixed on the surface of the scraping ring (22), and the blocking plate (23) is fixed on the inner wall of the spraying cavity (2). During the movement of the shielding cylinder (5) away from the motor rotor (4), the blocking plate (23) is in contact with the scraping ring (22).

2. A coating spray device for electro-machining according to claim 1, characterized in that: The first spring (26) is fixed between the sliding block (25) and the inner wall of the sliding groove (24), the outer side of the first spring (26) is sleeved with a folding protective cover (27), one end of the folding protective cover (27) is fixed on the inner wall of the sliding groove (24), and the other end of the folding protective cover (27) is fixed on the sliding block (25).

3. A coating spray device for motor processing as claimed in claim 1, wherein: The surface of the pushing ring (21) away from the scraping ring (22) is rotationally connected with a rotating ring (28), and the side of the rotating ring (28) away from the pushing ring (21) is fixed with a sealing ring (29).

4. A coating spray device for electro-machining according to claim 3, wherein: The surfaces of the pushing ring (21), the rotating ring (28) and the sealing ring (29) are all provided with guide inclined surfaces (30), and the guide inclined surfaces (30) all incline towards the side close to the scraping ring (22).

5. The coating spray device for motor processing according to claim 1, characterized in that: The scraping end of the scraping ring (22) is rotationally connected with an annular scraping strip (31), a guide slot (32) is formed in the side wall of the shielding cylinder (5), a guide pin (33) is slidably connected in the guide slot (32), the end of the guide pin (33) penetrates through the guide slot (32) and is fixed on the inner surface of the annular scraping strip (31), an L-shaped plate (34) is fixed on the surface of the shielding cylinder (5), scraping pieces (35) are arranged on the two sides of the L-shaped plate (34), and the surfaces of the two scraping pieces (35) are in contact with the scraping surface of the annular scraping strip (31).

6. A coating spray device for electro-machining according to claim 4, wherein: Two fixed pieces (36) are symmetrically fixed on the inner ring surface of the shielding cylinder (5), guide rods (37) are fixed on the surfaces of the two fixed pieces (36), limit pieces (38) are fixed at the ends of the guide rods (37), sliding plates (39) are slidably connected on the two guide rods (37), a shielding piece (40) is fixed on the top surfaces of the two sliding plates (39), and a second spring (41) is fixed between the sliding plate (39) and the corresponding fixed piece (36).

7. A coating spray device for electro-machining according to claim 6, wherein: Two limit strips (42) are symmetrically fixed on the surface of the shielding piece (40), a guide block (43) is fixed on the limit strip (42) away from the motor rotor (4), and an inclined surface is formed in the guide block (43).

8. A coating spray device for motor finishing as defined in claim 6, wherein: A collecting cavity (44) is arranged below the spraying cavity (2), and a plurality of strip-shaped through holes (45) are equidistantly formed in the inner bottom surface of the spraying cavity (2).

9. A method of spraying a coating spray device for electrical machine processing, suitable for use with a coating spray device for electrical machine processing according to any one of claims 1 to 8, characterised in that: The spraying method comprises the following steps: Step one, automatic shielding: the motor rotor (4) is placed in the spraying cavity (2), the shielding cylinder (5) is driven to move to the side close to the motor rotor (4) by the linear screw drive mechanism, and the position of the rotating shaft (401) of the motor rotor (4) is shielded; Step two, uniform spraying: after the motor rotor (4) is shielded, the surface of the motor rotor (4) is sprayed by the spraying mechanism, and the motor rotor (4) is driven to rotate by the rotating mechanism, so that the motor rotor (4) can rotate during spraying; Step three, scraping cleaning: after spraying, the shielding cylinder (5) is driven to move away from the motor rotor (4) by starting the linear screw drive mechanism, and the adhered paint on the surface of the shielding cylinder (5) is scraped and cleaned by the scraping cleaning mechanism during the movement of the shielding cylinder (5).

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