A spraying device for motor production

Abstract

The present invention relates to the technical field of motor shaft spraying devices, and specifically discloses a spraying device for motor production, including a bracket, a conveyor belt, a clamping mechanism and a cleaning spraying assembly, wherein the clamping mechanism is used to clamp the motor shaft and drive the motor shaft to rotate; the cleaning spraying assembly includes a spraying barrel with an opening window, a switching motor driving the spraying barrel to rotate, a cleaning mechanism and a spraying mechanism arranged on the front and rear sides of the spraying barrel; a main sealing plate and a secondary sealing plate are arranged in the spraying barrel from left to right; the cleaning mechanism includes a hot air pipeline and an exhaust pipe arranged on the bracket, the hot air pipeline has an air injection hole that can be connected to the opening window, and one end of the exhaust pipe is connected to a closed chamber; the spraying mechanism includes a main spray gun and an auxiliary spray gun that are assembled on the bracket and can move left and right, and the main spray gun and the auxiliary spray gun can extend into the closed chamber through the opening window, and spray the main shaft part and the journal part respectively. The spraying device for motor production ensures the uniformity of the thickness of the spray coating.

Description

Technical Field

[0001] The invention relates to the technical field of motor shaft spraying devices, and in particular to a spraying device for motor production. Background Art

[0002] The motor shaft is one of the most important parts of the motor, used to support and fix the rotor core and rotor winding to ensure that the rotor can rotate accurately inside the stator. The design and manufacture of the shaft are crucial to the overall performance and reliability of the motor. The motor shaft body is usually made of medium carbon steel or alloy steel to ensure sufficient strength and durability, and is in the form of a stepped shaft for easy connection with other components. The structure of the shaft includes a main shaft part and a journal part. The main shaft part is the most important part of the motor shaft, usually with a larger diameter, used to transmit the main torque. The journal part is the part with a smaller diameter on the shaft, usually located on one or both sides of the main shaft part, for mounting bearings.

[0003] When producing motor shafts, it is necessary to spray a ceramic coating on the transition area between the main shaft and the journal to specifically improve the insulation and wear resistance between the main shaft and the journal, thereby saving costs and avoiding adding unnecessary weight while ensuring that the key parts of the motor have a longer service life.

[0004] A Chinese patent document with authorization announcement number CN215744291U discloses a surface spraying device for motor shaft processing. The surface spraying device for motor shaft processing is provided with a clamping mechanism and a motor. The clamping mechanism can conveniently realize the clamping operation of shafts of different lengths, and the motor can realize the engagement of the first gear with the third gear to rotate, so that the spraying effect of the shaft is good and the efficiency of the shaft spraying processing is improved.

[0005] However, when the surface spraying device for motor shaft processing in the prior art sprays the transition part between the main shaft part and the journal part of the motor shaft, there is a problem that the spray coating is too thick or too thin in some parts, which will affect the insulation, wear resistance and aesthetics of the coating. The uneven thickness of the spray coating is mainly because the motor shaft is not cleaned before spraying, resulting in different adhesion of the coating at different places on the motor shaft surface. In addition, in the prior art, the nozzle moves along the axial direction of the motor shaft, and its distance from the main shaft part and the journal part is different, which also leads to uneven coating thickness. Summary of the invention

[0006] The present invention provides a spraying device for motor production, aiming to solve the problem of uneven spray coating thickness existing in the surface spraying device used for motor shaft processing in the related art.

[0007] The present invention provides a spraying device for motor production using the following technical solutions:

[0008] A spraying device for motor production, comprising a bracket and a conveyor belt arranged on the bracket, and also comprising a clamping mechanism and a cleaning and spraying assembly respectively mounted on the bracket for left and right movement and relatively distributed on the left and right sides of the conveyor belt, wherein the clamping mechanism is used to clamp the motor shaft to drive the motor shaft to rotate; the cleaning and spraying assembly comprises a spraying barrel with an opening window, a switching motor arranged outside the spraying barrel to drive the spraying barrel to rotate, a cleaning mechanism and a spraying mechanism arranged on the front and rear sides of the spraying barrel; a main sealing plate, a secondary sealing plate, a main sealing plate and a secondary sealing plate are arranged in sequence from left to right in the spraying barrel The sealing plate is used to plug the motor shaft and seal the left and right sides of the motor shaft area to be sprayed to cooperate with the spray barrel to form a closed chamber; the cleaning mechanism includes a hot air duct and an exhaust pipe arranged on the bracket, the hot air duct has an air injection hole that can be connected to the opening window, one end of the exhaust pipe is connected to the outside, and the other end of the exhaust pipe is connected to the closed chamber; the spraying mechanism includes a main spray gun and an auxiliary spray gun assembled on the bracket for left and right movement, the main spray gun and the auxiliary spray gun can extend into the closed chamber through the opening window, and spray the main shaft part and the journal part respectively.

[0009] By adopting the above technical scheme, the spraying device for motor production is provided with a cleaning spray component for the spraying requirements of the motor shaft with a stepped shaft shape. The cleaning mechanism uses high-temperature gas cleaning to clean the surface of the motor shaft after sandblasting to remove impurities on the surface of the motor shaft, ensuring that the coating can directly contact the surface of the motor shaft, thereby improving the adhesion of the coating, and preheating the motor shaft at the same time to improve the fluidity of the coating, making it easier to form a uniform coating on the surface of the motor shaft; then the surface of the motor shaft is sprayed by the spraying mechanism, and the spraying mechanism is provided with a main spray gun and an auxiliary spray gun for spraying the main shaft part and the journal part respectively, which can ensure that the spraying distance from each spray gun to the spraying surface is the same, thereby achieving uniform spraying on parts of different diameters of the stepped shaft, ensuring the consistency of the coating thickness, and improving the overall quality of the coating. At the same time, it can adapt to the complex shape and size changes of the stepped shaft, has good flexibility, and improves operating efficiency.

[0010] Furthermore, the cleaning mechanism also includes a main jet rod and a secondary jet rod which are movably mounted on the bracket and connected to the hot air pipeline. The main jet rod and the secondary jet rod can extend into the closed chamber through the opening window and spray the main shaft part and the journal part respectively.

[0011] By adopting the above technical solution, the main jet rod and the auxiliary jet rod are used to carry out targeted cleaning of the parts on the main shaft part and the journal part that need to be cleaned intensively, thereby improving the cleaning effect.

[0012] Furthermore, the spray cleaning assembly also includes a movable frame that is movably assembled on the bracket left and right and an outer sleeve fixed on the movable frame. The spray barrel is rotatably sleeved in the outer sleeve, and the outer wall of the spray barrel abuts against the inner wall of the outer sleeve. The front and rear sides of the outer sleeve are respectively provided with placement grooves that extend left and right and can be connected with the opening window. The placement groove located on the front side of the outer sleeve is used for placing the hot air pipe, the main jet rod and the auxiliary jet rod, and the placement groove located on the rear side of the outer sleeve is used for placing the main spray gun and the auxiliary spray gun.

[0013] Furthermore, the cleaning mechanism also includes a cleaning drive device 1 and a cleaning drive device 2, the output ends of the two cleaning drive devices 1 are respectively connected to the corresponding cleaning drive device 2, and the output ends of the two cleaning drive devices 2 are respectively connected to the main jet rod and the auxiliary jet rod to drive the main jet rod or the auxiliary jet rod to move left and right and forward and backward; the spraying mechanism also includes a spraying drive device 1 and a spraying drive device 2, the output ends of the two spraying drive devices 1 are respectively connected to the corresponding spraying drive device 2, and the output ends of the two spraying drive devices 2 are respectively connected to the main spray gun and the auxiliary spray gun to drive the main spray gun or the auxiliary spray gun to move left and right and forward and backward.

[0014] Furthermore, the main spray gun is fixedly connected to the output end of the corresponding spray drive device 2, and the auxiliary spray gun is rotatably connected to the output end of the corresponding spray drive device 2. A volute spring is arranged between the auxiliary spray gun and the output end of the corresponding spray drive device 2 to apply elastic force to the auxiliary spray gun so that the auxiliary spray gun has a tendency to rotate parallel to the main spray gun; a slot is provided on the auxiliary spray gun, and a pushing member that can extend into the slot is provided on the main spray gun. When the auxiliary spray gun moves to the point where the slot and the pushing member are staggered front and back, the pushing member can push against the auxiliary spray gun to make the auxiliary spray gun rotate relative to the output end of the corresponding spray drive device 2.

[0015] By adopting the above technical solution, the spraying angle of the auxiliary spray gun can be controlled so that the auxiliary spray gun can spray the step surface, thereby more comprehensively covering the spraying area and further improving the spraying effect.

[0016] Furthermore, the main sealing plate can be removably assembled on the left open end of the spray barrel, the main sealing plate has a main through hole adapted to the diameter of the main shaft part, the secondary sealing plate includes a plate body and a secondary mold plate, the plate body is assembled in the spray barrel for left and right movement, the secondary mold plate can be removably assembled on the plate body, the secondary mold plate has a secondary through hole adapted to the diameter of the shaft neck part; the spray cleaning assembly also includes a secondary sealing drive device installed on the movable frame, the output end of the secondary sealing drive device is connected to the plate body to drive the secondary sealing plate to move left and right.

[0017] By adopting the above technical solution, when spraying motor shafts of different diameters, the main sealing plate and the secondary mold plate can be removed, and the main sealing plate 540 and the secondary mold plate 552 of the required size can be replaced to adapt to motor shafts 10 of different diameters.

[0018] Furthermore, the spray cleaning assembly also includes a retractable discharge pipe, one end of which is fixed on the movable frame and communicated with the outside, and the other end of which is fixed on the plate body and communicated with the closed chamber.

[0019] By adopting the above technical solution, the exhaust pipe is used to cooperate with the blowing of the air jet hole to exhaust the gas and impurities in the closed chamber.

[0020] Furthermore, the hot air pipe includes a first pipe and a second pipe which are movably assembled in the placement groove left and right, and the cleaning mechanism also includes a first cover plate for sealing the jet hole of the first pipe and a second cover plate for sealing the jet hole of the second pipe. The first cover plate is fixed to the left open end of the spray barrel, and the second cover plate is movably assembled on the second pipe left and right and connected to the output end of the secondary sealing drive device to move synchronously with the secondary sealing plate; the main jet rod and the auxiliary jet rod are respectively guided forward and backward and movably assembled on the first pipe and the second pipe left and right, and the main jet rod and the auxiliary jet rod are respectively provided with jet holes at the ends facing the motor shaft.

[0021] Furthermore, a positioning piece is provided in the spray barrel on the right side of the auxiliary sealing plate, and the positioning piece is assembled in the spray barrel for left and right movement. The spray cleaning assembly also includes a positioning drive device, and the output end of the positioning drive device is connected to the positioning piece to drive the positioning piece to move left and right.

[0022] Furthermore, the spraying device for motor production also includes a clamping drive mechanism, two of which are installed on the bracket and are respectively connected to the clamping mechanism and the cleaning spray assembly to drive the clamping mechanism and the cleaning spray assembly to move closer to or away from each other.

[0023] The beneficial effects of a spraying device for motor production provided by the present invention are as follows: a cleaning spray component is provided for the spraying requirements of a motor shaft in a stepped shaft shape, and the surface of the motor shaft after sandblasting is cleaned by a cleaning mechanism using high-temperature gas cleaning to remove impurities on the surface of the motor shaft, thereby ensuring that the coating can directly contact the surface of the motor shaft, thereby improving the adhesion of the coating, and at the same time preheating the motor shaft to improve the fluidity of the coating, making it easier to form a uniform coating on the surface of the motor shaft; then the surface of the motor shaft is sprayed by a spraying mechanism, and a main spray gun and an auxiliary spray gun are provided in the spraying mechanism to spray the main shaft part and the journal part respectively, which can ensure that the spraying distance from each spray gun to the spraying surface is the same, thereby achieving uniform spraying on parts of different diameters of the stepped shaft, ensuring the consistency of the coating thickness, and improving the overall quality of the coating, while being able to adapt to the complex shape and size changes of the stepped shaft, having good flexibility, and improving operating efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic structural diagram of an embodiment of a spraying device for motor production according to the present invention.

[0025] Figure 2 yes Figure 1 Schematic diagram of the structure of the motor shaft.

[0026] Figure 3 yes Figure 1 Schematic diagram of the structure of the spray cleaning component.

[0027] Figure 4 yes Figure 1 A cross-sectional view of the spray cleaning assembly.

[0028] Figure 5 yes Figure 3 Schematic diagram of the structure of the cleaning mechanism and spraying mechanism.

[0029] Figure 6 yes Figure 3 A cross-sectional view of the cleaning mechanism in FIG.

[0030] Figure 7 yes Figure 3 Schematic diagram of the structure of the cleaning mechanism.

[0031] Figure 8 yes Figure 3 Schematic diagram of the structure of the spraying mechanism.

[0032] Reference numerals:

[0033] 10. Motor shaft; 110. Spindle part; 120. Journal part; 130. Step surface; 20. Bracket; 30. Conveyor belt; 310. Push rod; 40. Clamping mechanism; 50. Cleaning and spraying assembly; 510. Moving frame; 520. Outer sleeve; 521. Placement groove; 530. Spraying barrel; 531. Opening window; 540. Main sealing plate; 550. Secondary sealing plate; 551. Plate body; 552. Secondary mold plate; 560. Secondary sealing drive device; 570. Positioning member; 580. Positioning drive device; 590. Switching motor; 500, discharge pipe; 60, cleaning mechanism; 610, hot air pipeline; 611, first pipeline; 612, second pipeline; 620, main jet rod; 630, auxiliary jet rod; 640, cleaning drive device 1; 650, cleaning drive device 2; 660, first cover plate; 670, second cover plate; 70, spraying mechanism; 720, main spray gun; 721, pusher; 730, auxiliary spray gun; 731, slot; 740, spraying drive device 1; 750, spraying drive device 2; 760, volute spring; 80, clamping drive mechanism. DETAILED DESCRIPTION

[0034] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0035] like Figures 1 to 8 As shown, and refer to Figure 1 In the orientation shown in the figure, an embodiment of the spraying device for motor production of the present invention is used to spray a motor shaft 10 in the shape of a stepped shaft, and includes a bracket 20, a conveyor belt 30, a clamping mechanism 40, a cleaning and spraying assembly 50, and a clamping and driving mechanism 80. Among them, the conveyor belt 30, the clamping mechanism 40, the cleaning and spraying assembly 50, and the clamping and driving mechanism 80 are respectively arranged on the bracket 20, the conveyor belt 30 extends forward and backward, and the clamping mechanism 40 and the cleaning and spraying assembly 50 are relatively distributed on the left and right sides of the conveyor belt 30.

[0036] like Figure 1 and Figure 2 As shown, the motor shaft 10 in the embodiment includes a main shaft portion 110 and a journal portion 120. The main shaft portion 110 has a larger diameter and is located in the middle of the motor shaft 10. The journal portion 120 has a smaller diameter and is located on the left and right sides of the main shaft portion 110. A step surface 130 is formed between the main shaft portion 110 and the journal portion 120. Specifically, the embodiment of the spraying device for motor production is used to spray the transition portion between the main shaft portion 110 and the journal portion 120 on the right side of the motor shaft 10. The area to be sprayed includes the side wall of the main shaft portion 110 located at the transition portion, the side wall of the journal portion 120, and the step surface 130.

[0037] The conveyor belt 30 is used to convey the motor shaft 10 from the loading end of the bracket 20 to the unloading end of the bracket 20, that is, from front to back. The upper surface of the conveyor belt 30 is provided with a push rod 310 for pushing the motor shaft 10. The middle part of the main shaft part 110 of the motor shaft 10 is placed on the upper surface of the conveyor belt 30, and the remaining part extends to the outside of the conveyor belt 30. In the embodiment, the left end of the motor shaft 10 is the clamping end, and the right end is the spraying end.

[0038] The clamping mechanism 40 and the cleaning and spraying assembly 50 are respectively assembled on the bracket 20 for left and right movement. The clamping mechanism 40 is a three-jaw chuck for clamping the clamping end of the motor shaft 10 and driving the motor shaft 10 to rotate. The cleaning and spraying assembly 50 is used to position, clean and spray the spraying end of the motor shaft 10. Two clamping drive mechanisms 80 are installed on the bracket 20 and are respectively connected to the clamping mechanism 40 and the cleaning and spraying assembly 50 to drive the clamping mechanism 40 and the cleaning and spraying assembly 50 to move closer to or away from each other.

[0039] like Figure 1 , Figure 3 and Figure 4 As shown, the cleaning and spraying assembly 50 includes a movable frame 510, an outer sleeve 520, a spraying sleeve 530, a main sealing plate 540, a secondary sealing plate 550, a secondary sealing drive device 560, a positioning member 570, a positioning drive device 580, a switching motor 590, a cleaning mechanism 60, and a spraying mechanism 70.

[0040] The moving frame 510 is assembled on the bracket 20 for left-right movement, and is connected to the output end of the corresponding clamping drive mechanism 80, so as to move left-right on the bracket 20 under the drive of the clamping drive mechanism 80. The outer sleeve 520 is fixed on the moving frame 510, and the front and rear sides of the outer sleeve 520 are respectively provided with placement grooves 521 extending left-right.

[0041] like Figure 3 and Figure 6 As shown, the spray barrel 530 is rotatably sleeved in the outer sleeve 520, the outer side wall of the spray barrel 530 abuts against the inner side wall of the outer sleeve 520, and the spray barrel 530 has an opening window 531 extending left and right and capable of correspondingly communicating with the placement groove 521. The switching motor 590 is installed on the moving frame 510, and drives the spray barrel 530 to rotate through the belt transmission, so that the opening window 531 of the spray barrel 530 corresponds to the placement groove 521 on the front side or rear side of the outer sleeve 520.

[0042] like Figure 4As shown, the main sealing plate 540 is detachably mounted on the left open end of the spray barrel 530, and the main sealing plate 540 has a main through hole that matches the diameter of the main shaft part 110. The secondary sealing plate 550 includes a plate body 551 and a secondary mold plate 552. The plate body 551 is movably mounted in the spray barrel 530, and the secondary mold plate 552 is detachably mounted on the plate body 551. The secondary mold plate 552 has a secondary through hole that matches the diameter of the journal part 120. The plate body 551 is connected to a secondary sealing drive device 560 mounted on the mobile frame 510, so that the secondary sealing plate 550 moves left and right under the drive of the secondary sealing drive device 560. In the embodiment, the main sealing plate 540 and the secondary mold plate 552 are respectively mounted on the spray barrel 530 and the plate body 551 by bolt connection. In other embodiments, a detachable assembly method such as magnetic connection, threaded connection, and snap connection can also be adopted.

[0043] Thus, the main sealing plate 540 and the secondary sealing plate 550 are used to plug the motor shaft 10 and respectively block the left and right sides of the area to be sprayed of the motor shaft 10 to limit the up and down, front and back movement of the motor shaft 10 and cooperate with the spray barrel 530 to form a closed chamber, which is convenient for the subsequent cleaning and spraying of the area to be sprayed in the closed chamber. It should be noted that when spraying motor shafts 10 of different diameters, the main sealing plate 540 and the secondary mold plate 552 can be removed, and the main sealing plate 540 and the secondary mold plate 552 of the required size can be replaced to adapt to motor shafts 10 of different diameters.

[0044] The positioning member 570 is assembled in the spray barrel 530 and is located on the right side of the secondary sealing plate 550. The positioning member 570 is connected to the positioning drive device 580 installed on the movable frame 510, so that it can move left and right under the drive of the positioning drive device 580, thereby adapting to motor shafts 10 of different lengths, and abutting against the spray end face of the motor shaft 10 to limit its left and right movement.

[0045] like Figure 2 , Figure 3 , Figure 5 , Figure 6 and Figure 7 As shown, the cleaning mechanism 60 is arranged at the placement slot 521 on the front side of the spray barrel 530. The cleaning mechanism 60 includes a hot air duct 610, a main jet rod 620, a secondary jet rod 630, a cleaning drive device 1 640, a cleaning drive device 2 650, a first cover plate 660 and a second cover plate 670.

[0046] The hot gas pipe 610 is filled with high-temperature gas and includes a first pipe 611 and a second pipe 612 which are movably mounted in the placement groove 521. The first pipe 611 and the second pipe 612 are respectively provided with jet holes on the sides facing the spray barrel 530. The jet holes can be connected with the opening window 531 to spray high-temperature gas to the area to be sprayed. The first cover plate 660 is fixed to the left open end of the spray barrel 530 to block the jet holes of the first pipe 611 outside the closed chamber; the second cover plate 670 is movably mounted on the second pipe 612 and connected to the output end of the secondary sealing drive device 560 to move synchronously with the secondary sealing plate 550 to block the jet holes of the second pipe 612 outside the closed chamber.

[0047] The main jet rod 620 and the auxiliary jet rod 630 are respectively guided forward and backward and are movable and limited left and right on the first pipe 611 and the second pipe 612. The main jet rod 620 is connected to the first pipe 611 and is located at the right end of the first pipe 611. The auxiliary jet rod 630 is connected to the second pipe 612 and is located at the left end of the second pipe 612. The main jet rod 620 and the auxiliary jet rod 630 are respectively provided with jet holes at the ends facing the motor shaft 10. The two cleaning drive devices 1 640 are respectively installed on the movable frame 510, and the output ends of the two cleaning drive devices 1 640 are respectively connected to the corresponding cleaning drive devices 2 650, and the output ends of the two cleaning drive devices 2 650 are respectively connected to the main jet rod 620 and the auxiliary jet rod 630. The cleaning drive device 1 640 is used to drive the cleaning drive device 2 650 to move left and right, and the cleaning drive device 2 650 is used to drive the main jet rod 620 or the auxiliary jet rod 630 to move forward and backward, thereby controlling the main jet rod 620 or the auxiliary jet rod 630 to move left and right and forward and backward, so that the main jet rod 620 and the auxiliary jet rod 630 extend into the closed chamber through the opening window 531, and respectively abut against the main shaft part 110 and the journal part 120, so that the parts on the main shaft part 110 and the journal part 120 that need to be cleaned in a targeted manner can be cleaned, thereby improving the cleaning effect.

[0048] In addition, after the main jet rod 620 drives the first pipe 611 and the second pipe 612 to collide with each other, a gap is formed between the main jet rod 620 and the auxiliary jet rod 630. The main jet rod 620 and the auxiliary jet rod 630 are also provided with jet holes on the sides facing each other, which can spray high-temperature gas and flow out from the gap, and are used to cooperate with the jet holes at the ends of the main jet rod 620 and the auxiliary jet rod 630 to spray the step surface 130, thereby more comprehensively covering the cleaning area and further improving the cleaning effect.

[0049] like Figure 4As shown, the discharge pipe 500 is used to discharge the gas and impurities in the closed chamber in coordination with the blowing of the air jet hole. One end of the discharge pipe 500 is fixed on the mobile frame 510 and communicated with the outside. The other end of the discharge pipe 500 is fixed on the plate body 551 and communicated with the closed chamber. The discharge pipe 500 includes an inner pipe and an outer pipe that are mutually sleeved to adapt to the left and right movement of the plate body 551 for expansion and contraction. In other embodiments, the discharge pipe 500 may also include a section of bellows to achieve expansion and contraction.

[0050] like Figure 2 , Figure 3 , Figure 5 and Figure 8 As shown, the spray mechanism 70 is arranged at the placement slot 521 at the rear side of the spray barrel 530. The spray mechanism 70 includes a paint pipeline, a main spray gun 720, an auxiliary spray gun 730, a spray drive device 1 740, a spray drive device 2 750 and a spiral spring 760.

[0051] Paint is passed into the paint pipeline, and the main spray gun 720 and the auxiliary spray gun 730 are respectively moved left and right and assembled on the mobile frame 510 and connected to the paint pipeline. The main spray gun 720 and the auxiliary spray gun 730 are respectively placed in the placement groove 521 at one end facing the spray barrel 530. Two spray drive devices 1 740 are respectively installed on the mobile frame 510, and the output ends of the two spray drive devices 1 740 are respectively connected to the corresponding spray drive device 2 750, and the output ends of the two spray drive devices 2 750 are respectively connected to the main spray gun 720 and the auxiliary spray gun 730. The spray drive device 1 740 is used to drive the spray drive device 2 750 to move forward and backward, and the spray drive device 2 750 is used to drive the main spray gun 720 or the auxiliary spray gun 730 to move left and right, thereby controlling the main spray gun 720 or the auxiliary spray gun 730 to move left and right and forward and backward, so that the main spray gun 720 and the auxiliary spray gun 730 extend into the closed chamber through the opening window 531 to spray the area to be sprayed.

[0052] The main spray gun 720 is fixedly connected to the output end of the corresponding spray drive device 2 750, and the auxiliary spray gun 730 is rotatably connected to the output end of the corresponding spray drive device 2 750. A volute spring 760 is arranged between the auxiliary spray gun 730 and the output end of the corresponding spray drive device 2 750 to apply elastic force to the auxiliary spray gun 730 so that the auxiliary spray gun 730 has a tendency to rotate parallel to the main spray gun 720. A slot 731 is provided on the auxiliary spray gun 730, and a pusher 721 that can be inserted into the slot 731 is arranged on the main spray gun 720. When the auxiliary spray gun 730 moves to the slot 731 and is staggered with the pusher 721, the pusher 721 can push against the auxiliary spray gun 730, so that the auxiliary spray gun 730 rotates relative to the output end of the corresponding spray drive device 2 750, controls the spraying angle of the auxiliary spray gun 730, and makes the auxiliary spray gun 730 spray the step surface 130, thereby covering the spraying area more comprehensively and further improving the spraying effect.

[0053] like Figures 3 to 8 As shown, the clamping drive mechanism 80, the secondary sealing drive device 560, the positioning drive device 580, the cleaning drive device 1 640, the cleaning drive device 2 650, the spraying drive device 1 740 and the spraying drive device 2 750 are respectively any one of the electric push rod, the hydraulic cylinder and the air cylinder.

[0054] The working process of the embodiment of the motor production spraying device of the present invention comprises the following steps:

[0055] The first step is loading. The conveyor belt 30 conveys the motor shaft 10 from the loading end of the bracket 20 to the unloading end of the bracket 20, so that the motor shaft 10 moves to between the clamping mechanism 40 and the cleaning spray assembly 50 and stays there, so as to spray the motor shaft 10.

[0056] The second step is clamping. The two clamping drive mechanisms 80 drive the clamping mechanism 40 and the cleaning spray assembly 50 to approach each other, so that the clamping end of the motor shaft 10 extends into the clamping mechanism 40. The clamping mechanism 40 clamps the clamping end of the motor shaft 10 and drives the motor shaft 10 to rotate. The spraying end of the motor shaft 10 extends into the spray barrel 530 of the cleaning spray assembly 50.

[0057] The third step is positioning. The main shaft part 110 of the spraying end of the motor shaft 10 passes through the main perforation of the main sealing plate 540, and the journal part 120 of the spraying end of the motor shaft 10 passes through the secondary perforation of the secondary mold plate 552. The secondary sealing drive device 560 drives the secondary sealing plate 550 to move left and right, so that the distance between the main sealing plate 540 and the secondary sealing plate 550 corresponds to the area to be sprayed, and a closed chamber is formed between the main sealing plate 540, the secondary sealing plate 550 and the spray barrel 530.

[0058] Step 4: Cleaning. Switch the motor 590 to drive the spray barrel 530 to rotate, so that the opening window 531 of the spray barrel 530 corresponds to the placement groove 521 on the front side of the outer sleeve 520. The main jet rod 620 and the auxiliary jet rod 630 extend into the closed chamber through the opening window 531 and approach each other until they are against each other. The high-temperature gas of the hot gas pipeline 610 is sprayed into the closed chamber through the jet holes of the first pipeline 611 and the second pipeline 612. The main jet rod 620 and the auxiliary jet rod 630 extend into the closed chamber through the opening window 531. 30 keeps the left and right sides against each other and moves back and forth synchronously to focus on the main shaft part 110 and the journal part 120; when the main jet rod 620 and the sub-jet rod 630 move to the main shaft part 110 or the journal part 120, the main jet rod 620 and the sub-jet rod 630 move forward and backward accordingly to keep in contact with the side wall of the main shaft part 110 or the journal part 120; after cleaning, the main jet rod 620 and the sub-jet rod 630 extend back into the placement groove 521.

[0059] The fifth step is spraying. The switching motor 590 drives the spray barrel 530 to rotate so that the opening window 531 of the spray barrel 530 corresponds to the placement groove 521 on the rear side of the outer sleeve 520. The main spray gun 720 and the auxiliary spray gun 730 extend into the closed chamber through the opening window 531 and spray the main shaft part 110 and the journal part 120 respectively. When spraying the step surface 130, the main spray gun 720 and the auxiliary spray gun 730 are staggered front and back, and the auxiliary spray gun 730 is pushed against by the pushing member 721 to change the spraying angle of the auxiliary spray gun 730 so that the auxiliary spray gun 730 sprays the step surface 130.

[0060] The sixth step is unloading. The two clamping drive mechanisms 80 drive the clamping mechanism 40 and the cleaning spray assembly 50 to move away from each other, and the conveyor belt 30 outputs the motor shaft 10 after spraying.

[0061] In this way, the spraying device for motor production is provided with a cleaning spray component 50 for the spraying requirements of the motor shaft 10 in the shape of a stepped shaft. The surface of the motor shaft 10 after sandblasting is cleaned by a cleaning mechanism 60 using high-temperature gas cleaning to remove impurities on the surface of the motor shaft 10, ensuring that the coating can directly contact the surface of the motor shaft 10, thereby improving the adhesion of the coating, and preheating the motor shaft 10 to improve the fluidity of the coating, making it easier to form a uniform coating on the surface of the motor shaft 10; then the surface of the motor shaft 10 is sprayed by a spraying mechanism 70, and the spraying mechanism 70 is provided with a main spray gun 720 and an auxiliary spray gun 730 for spraying the main shaft part 110 and the journal part 120 respectively, which can ensure that the spraying distance from each spray gun to the spraying surface is the same, thereby achieving uniform spraying on parts of different diameters of the stepped shaft, ensuring the consistency of the coating thickness, improving the overall quality of the coating, and at the same time adapting to the complex shape and size changes of the stepped shaft, having good flexibility, and improving operating efficiency.

[0062] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0063] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0064] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A spraying device for motor production, comprising a support (20) and a conveyor belt (30) arranged on the support (20), characterized in that: The invention also includes a clamping mechanism (40) and a cleaning and spraying assembly (50) which are respectively mounted on the bracket (20) and are relatively distributed on the left and right sides of the conveyor belt (30). The clamping mechanism (40) is used to clamp the motor shaft (10) to drive the motor shaft (10) to rotate. The cleaning and spraying assembly (50) includes a spray barrel (530) having an opening window (531), a switching motor (590) arranged outside the spray barrel (530) to drive the spray barrel (530) to rotate, and a cleaning mechanism (60) and a spraying mechanism (70) arranged on the front and rear sides of the spray barrel (530). A main sealing plate (540) and a secondary sealing plate (550) are arranged in sequence from left to right in the spray barrel (530). The main sealing plate (540) and the secondary sealing plate (550) are used to plug the motor shaft (101) into the spray barrel (530). ) and sealed on the left and right sides of the area to be sprayed of the motor shaft (10) to cooperate with the spray barrel (530) to form a closed chamber; the cleaning mechanism (60) includes a hot air pipe (610) and an exhaust pipe (500) arranged on the bracket (20), the hot air pipe (610) has an air injection hole that can be communicated with the opening window (531), one end of the exhaust pipe (500) is communicated with the outside, and the other end of the exhaust pipe (500) is communicated with the closed chamber; the spray mechanism (70) includes a main spray gun (720) and an auxiliary spray gun (730) that are assembled on the bracket (20) to move left and right, the main spray gun (720) and the auxiliary spray gun (730) can extend into the closed chamber through the opening window (531) and spray the main shaft part (110) and the journal part (120) respectively; The cleaning mechanism (60) further comprises a main jet rod (620) and a secondary jet rod (630) which are movably mounted on the bracket (20) and communicate with the hot air pipe (610); the main jet rod (620) and the secondary jet rod (630) are capable of extending into the closed chamber through the opening window (531) and respectively spraying the main shaft portion (110) and the journal portion (120); The spray cleaning assembly (50) further comprises a movable frame (510) movably mounted on the bracket (20) and an outer sleeve (520) fixed on the movable frame (510); the spray barrel (530) is rotatably sleeved in the outer sleeve (520); the outer side wall of the spray barrel (530) abuts against the inner side wall of the outer sleeve (520); the outer sleeve (520) is provided with placement grooves (521) extending left and right and capable of communicating with the opening window (531) on the front and rear sides respectively; the placement groove (521) located on the front side of the outer sleeve (520) is used to place the hot air pipe (610), the main jet rod (620) and the auxiliary jet rod (630); and the placement groove (521) located on the rear side of the outer sleeve (520) is used to place the main spray gun (720) and the auxiliary spray gun (730); The main sealing plate (540) is detachably mounted on the left open end of the spray barrel (530), and the main sealing plate (540) has a main through hole that matches the diameter of the main shaft portion (110). The secondary sealing plate (550) includes a plate body (551) and a secondary mold plate (552). The plate body (551) is movably mounted in the spray barrel (530) to the left and right, and the secondary mold plate (552) is detachably mounted on the plate body (551), and the secondary mold plate (552) has a secondary through hole that matches the diameter of the journal portion (120). The spray cleaning assembly (50) also includes a secondary sealing drive device (560) mounted on the movable frame (510), and the output end of the secondary sealing drive device (560) is connected to the plate body (551) to drive the secondary sealing plate (550) to move to the left and right.

2. A spraying device for motor production according to claim 1, characterized in that: The cleaning mechanism (60) further comprises a cleaning drive device 1 (640) and a cleaning drive device 2 (650), the output ends of the two cleaning drive devices 1 (640) being respectively connected to the corresponding cleaning drive device 2 (650), and the output ends of the two cleaning drive devices 2 (650) being respectively connected to the main jet rod (620) and the auxiliary jet rod (630), so as to drive the main jet rod (620) or the auxiliary jet rod (630) to move left and right and forward and backward; the spraying mechanism (70) further comprises a spraying drive device 1 (740) and a spraying drive device 2 (750), the output ends of the two spraying drive devices 1 (740) being respectively connected to the corresponding spraying drive device 2 (750), and the output ends of the two spraying drive devices 2 (750) being respectively connected to the main spray gun (720) and the auxiliary spray gun (730), so as to drive the main spray gun (720) or the auxiliary spray gun (730) to move left and right and forward and backward.

3. A spraying device for motor production according to claim 2, characterized in that: The main spray gun (720) is fixedly connected to the output end of the corresponding spray drive device (750), and the auxiliary spray gun (730) is rotatably connected to the output end of the corresponding spray drive device (750). A vortex spring (760) is arranged between the auxiliary spray gun (730) and the output end of the corresponding spray drive device (750) to apply elastic force to the auxiliary spray gun (730) so that the auxiliary spray gun (730) has a tendency to rotate parallel to the main spray gun (720). A slot (731) is provided on the auxiliary spray gun (730), and a pushing member (721) capable of extending into the slot (731) is arranged on the main spray gun (720). When the auxiliary spray gun (730) moves to the slot (731) and is staggered with the pushing member (721) in front and behind, the pushing member (721) can push against the auxiliary spray gun (730) so that the auxiliary spray gun (730) rotates relative to the output end of the corresponding spray drive device (750).

4. A spraying device for motor production according to claim 1, characterized in that: The spray cleaning assembly (50) further comprises a retractable discharge pipe (500), one end of the discharge pipe (500) being fixed on the movable frame (510) and communicating with the outside, and the other end of the discharge pipe (500) being fixed on the plate body (551) and communicating with the closed chamber.

5. The spraying device for motor production according to claim 1, characterized in that: The hot air pipe (610) comprises a first pipe (611) and a second pipe (612) which are movably mounted in the placement groove (521) left and right. The cleaning mechanism (60) further comprises a first cover plate (660) for blocking the jet hole of the first pipe (611) and a second cover plate (670) for blocking the jet hole of the second pipe (612). The first cover plate (660) is fixed to the left open end of the spray barrel (530). The second cover plate (670) is movably mounted on the second pipe (612) left and right and connected to the output end of the secondary sealing drive device (560) so as to move synchronously with the secondary sealing plate (550). The main jet rod (620) and the secondary jet rod (630) are respectively guided forward and backward and movably mounted on the first pipe (611) and the second pipe (612) left and right. The main jet rod (620) and the secondary jet rod (630) are respectively provided with jet holes at their ends facing the motor shaft (10).

6. A spraying device for motor production according to claim 1, characterized in that: The spray barrel (530) is also provided with a positioning member (570) located on the right side of the auxiliary sealing plate (550), and the positioning member (570) is assembled in the spray barrel (530) so as to move left and right. The spray cleaning assembly (50) further comprises a positioning drive device (580), and an output end of the positioning drive device (580) is connected to the positioning member (570) so as to drive the positioning member (570) to move left and right.

7. A spraying device for motor production according to claim 1, characterized in that: The motor production spraying device further comprises a clamping drive mechanism (80), wherein two clamping drive mechanisms (80) are mounted on the bracket (20) and are respectively connected to the clamping mechanism (40) and the cleaning spray assembly (50) to drive the clamping mechanism (40) and the cleaning spray assembly (50) to move closer to or farther from each other.

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