Automatic spraying equipment for casing of three-phase asynchronous motor

Abstract

The invention discloses a three-phase asynchronous motor casing automatic spray plating device which comprises a spray plating box, a machine frame is installed in the spray plating box, a differential feeding mechanism and a centering material turning mechanism are arranged on the machine frame, and the differential feeding mechanism comprises a differential mechanism and a feeding mechanism. The differential mechanism is used for adjusting the conveying speed of the machine shell and enabling the machine shell to rotate by adjusting the speed difference, and the feeding mechanism is used for continuously conveying the machine shell to one side. The machine shell body is placed on the roller shaft, the two ends of the machine shell body abut against the cushion wheels on the corresponding sides respectively, the machine shell body is driven to move by rotating the roller shaft, the machine shell body rotates in the moving process by changing the rotating speed of the cushion wheels, and in the rotating state, gaseous film particles can be attached to the surface of the machine shell in an all-around mode; and moreover, no barrier is arranged in the machine shell, gaseous film particles can easily enter the machine shell and are uniformly attached to the inner wall of the machine shell, and double-sided film coating treatment on the machine shell is easily realized.

Description

Technical Field

[0001] The invention relates to the technical field of motor casing processing, in particular to automatic spraying equipment for a three-phase asynchronous motor casing. Background Art

[0002] The motor casing is composed of a cylindrical casing body, a base welded to the bottom of the casing body, a number of heat dissipation fins arranged on the casing body cylinder, and end covers encapsulated at the openings at both ends of the casing body. During the processing of the motor casing, the casing body needs to be double-sided coated to ensure its service life. The middle part of the casing body is thicker than its two ends, and the openings at both ends of the casing body gradually shrink from the inside to the outside.

[0003] Prior art publication number CN116024534B discloses an automatic spray-plating device for a three-phase asynchronous motor casing, which is used to coat the casing surface by rotating and moving the casing and collecting particles for heating and vacuum spraying. The casing is clamped in the box by a clamping structure, and the clamped part of the casing will be blocked. During coating, gaseous particles cannot adhere to the blocked area, which will cause incomplete coating. At the same time, the casing in the above device rotates around the axis of the clamping shaft after being clamped by the clamping structure, and the casing itself does not roll. The inner wall of the casing is difficult to be coated due to the existence of the clamping structure, and the double-sided coating effect of the casing is poor. Summary of the invention

[0004] The object of the present invention is to provide an automatic spray coating device for a three-phase asynchronous motor housing to solve the problems of incomplete coating and poor double-sided coating effect mentioned in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: An automatic spraying device for a three-phase asynchronous motor housing comprises a spraying box, a frame is installed inside the spraying box, a differential feeding mechanism and a centering and turning mechanism are arranged on the frame, the differential feeding mechanism comprises a differential mechanism and a feeding mechanism, the differential mechanism is used to adjust the conveying speed of the housing and make the housing rotate by adjusting the speed difference, the feeding mechanism is used to continuously convey the housing to one side, the centering and turning mechanism comprises a centering mechanism and a turning mechanism, the centering mechanism is used to align the housing and place it centrally on the feeding mechanism, and the turning mechanism is used to turn over the housing so that the top and bottom sides of the housing are swapped to realize and accelerate the all-round coating of the housing surface; A loading table and an unloading table, both of which are rotatably connected with a plurality of conveying rollers, and the plurality of conveying rollers on the loading table and the unloading table are driven by external driving devices respectively. The loading table is used to continuously feed the motor casing to be sprayed into the spraying box, and the unloading table is used to continuously receive the motor casing that has been sprayed and transport it outward, so as to realize the continuity of the casing spraying work.

[0006] As a further solution of the present invention: a workbench is arranged on the top of the frame, and the workbench is a frame structure, and the cavity inside the workbench is arranged as a first working area, a second working area and a third working area from left to right, and nozzles are installed on the front and rear sides and the top of the spraying box corresponding to the first working area and the third working area, and a plurality of the nozzles located on the same side constitute a group of spraying mechanisms, which are used to perform double-sided spraying on the inside and outside of the casing in the current working area, and two card slots are opened on the back side of the top of the workbench corresponding to the second working area, and the two card slots are symmetrical and cooperate with each other, and are used to clamp and limit the centering and turning mechanism.

[0007] As a further solution of the present invention: the differential feeding mechanism includes a plurality of rollers, the plurality of rollers are evenly arranged from left to right in the first working area, the second working area and the third working area, and the plurality of rollers are rotatably connected in the cavity inside the workbench, a housing body is placed on the workbench, and the housing body is conveyed by the cooperation of the plurality of rollers, a first transmission shaft and a second transmission shaft are rotatably connected below the front and rear sides of the first working area and the third working area in the spraying box, respectively, a third transmission shaft is rotatably connected on one side of the spraying box close to the second transmission shaft, first pulleys are fixed to one end of the two first transmission shafts, the two second transmission shafts and the third transmission shaft, and first belts are provided on the plurality of first pulleys; The first anti-slip sleeve is sleeved on the shaft body of the plurality of rollers, and a second pulley is fixed at one end of the plurality of rollers, the second pulleys on each adjacent two of the plurality of rollers are connected by a second belt transmission, the second pulley on one of the plurality of rollers corresponding to the side of the third transmission shaft is connected to the first pulley on the third transmission shaft by the corresponding first belt transmission, a third motor is installed on the side of the outside of the spraying box corresponding to the third transmission shaft, one end of the output shaft of the third motor is connected and fixed to one end of the third transmission shaft, the plurality of rollers, the third transmission shaft, the third motor and the corresponding belt transmission structure cooperate to form the feeding mechanism.

[0008] As a further solution of the present invention: both ends of the plurality of roller shafts located in the first working area and the third working area are rotatably sleeved with sleeves, the inner ends of the plurality of sleeves are sleeved and fixed with pad wheels, the wheel bodies of the plurality of pad wheels are sleeved with second anti-slip sleeves, the outer ends of the plurality of sleeves are sleeved and fixed with third pulleys, and two adjacent third pulleys are connected by a third belt transmission, and the first pulleys on the two first transmission shafts are connected to the third pulleys at both ends of a corresponding roller shaft located in the first working area by a first belt transmission; A first motor and a fifth motor are respectively installed on one side of the outside of the spraying box corresponding to the two first transmission shafts, one end of the output shaft of the first motor and one end of the output shaft of the fifth motor are respectively connected and fixed to one end of the first transmission shaft on the corresponding side, the first pulleys on the two second transmission shafts and the third pulleys at both ends of a corresponding roller shaft in the third working area are connected through a first belt transmission, a second motor and a sixth motor are respectively installed on one side of the outside of the spraying box corresponding to the two second transmission shafts, one end of the output shaft of the second motor and one end of the output shaft of the sixth motor are respectively connected and fixed to one end of the second transmission shaft on the corresponding side.

[0009] As a further solution of the present invention: the pad wheels at both ends of the roller shaft are independent of each other and can rotate freely, and the multiple pad wheels located on the same side are transmitted through the corresponding third pulley and the third belt to form a group of pad wheel structures, and each group of the pad wheel structures is driven by the corresponding motor and the transmission shaft. The diameter of the pad wheel is larger than the diameter of the roller shaft to adapt to the outer diameter of different parts of the casing body. The multiple pad wheels, the multiple roller shafts and the corresponding motor drive structure cooperate to form the differential mechanism.

[0010] As a further solution of the present invention: the centering and turning mechanism includes a turntable, a guide platform and two centering components, the turntable is rotatably connected to the rear side of the second working area inside the spraying box, a fourth motor is installed on the side of the spraying box outside corresponding to the turntable, one end of the fourth motor output shaft is connected and fixed to one end of the turntable shaft, the guide platform is fixed on one side of the turntable, and two guide grooves are symmetrically provided on the guide platform, the two centering components are slidably connected to the guide platform, and cylinders are installed on the side of the guide platform corresponding to the two centering components, the movable ends of the two cylinders extend outward and are connected and fixed to the centering components on the corresponding side, the turntable, the two centering components and the fourth motor cooperate to form the turning mechanism.

[0011] As a further solution of the present invention: the centering component includes a connecting block, and a guide block is fixed on one side of the connecting block corresponding to the two guide grooves, and the two guide blocks are respectively slidably connected in the guide grooves on the corresponding side, and clamping blocks are fixed on the left and right ends of the connecting block away from the guide block, and the shapes of the two clamping blocks are adapted to the shapes of the clamping grooves, and the two clamping blocks are respectively clamped into the clamping grooves on the corresponding side, and the connecting block, the two clamping blocks and the two guide blocks cooperate to form a driving member for sliding on the guide platform.

[0012] As a further scheme of the present invention: guide rods are fixed at both ends of the two blocks away from the connecting block, the two guide rods on adjacent sides are a group, forming a group of guide structures, and one end of the two guide rods on adjacent sides is fixed with a limit block, and limit switches are installed on the two limit blocks, and the two limit blocks are rotatably connected with screw rods at the middle position facing the one side of the block, and a connecting cavity is formed between the two blocks and the connecting block, and one end of the two screw rods rotates through the inner wall of the block on the corresponding side and extends to the connecting cavity, and a seventh motor is installed in the connecting cavity, and one end of the seventh motor output shaft and one end of the two screw rods are fixed with a fourth pulley, and each adjacent two fourth pulleys are connected by a fourth belt transmission.

[0013] As a further solution of the present invention: a driving block is provided on one side of the two clamping blocks, and the two driving blocks are respectively slidably connected to the two guide rods on the corresponding side, and the two driving blocks are respectively threadedly connected to the screw rods on the corresponding side, and the driving block, the limit block and the corresponding guide structure cooperate to jointly constitute the centering mechanism.

[0014] As a further solution of the present invention: the spraying box is a sealed structure, and a vacuum tube is fixed on one side of the top thereof. The vacuum tube is used to evacuate the inside of the spraying box and form a vacuum negative pressure state inside the box.

[0015] Compared with the prior art, the present invention has the following beneficial effects: In the present invention, the motor casing to be sprayed is continuously fed into the spraying box through the loading platform, and the motor casing that has been sprayed is continuously received and transported outward through the unloading platform, so as to realize the continuity of the casing spraying work and improve the processing efficiency. The spraying box is a sealed structure, and the interior thereof can be evacuated to realize vacuum adsorption coating, so as to ensure that the coating material is evenly attached to the surface of the casing; In the present invention, the casing body is placed on the roller shaft, and its two ends are respectively placed on the pad wheels on the corresponding side. The casing body is driven to move by rotating the roller shaft, and the casing body is caused to rotate in the process of moving by changing the rotation speed of the pad wheels. In the rotating state, the gaseous film particles can be attached to the casing surface in all directions, and there are no obstacles inside the casing. The gaseous film particles can easily enter the casing and evenly attach to the inner wall of the casing, so that the double-sided coating treatment of the casing can be easily achieved; In the present invention, the flipping mechanism is used to flip the casing so that the top and bottom sides of the casing are swapped to achieve and accelerate the all-round coating of the casing surface. In a conveying process, there is a dead angle at the bottom of the casing during spraying. By flipping the casing, the bottom of the casing is directly facing upward, and the bottom of the casing is directly coated, which saves time and effort. Although the casing is continuously conveyed by the feeding mechanism, the bottom of the casing will always face upward, but this will inevitably increase the length of the conveying line, causing the entire device to be larger and too complicated. By setting up the flipping mechanism, the casing can be directly flipped without expanding the conveying line, making the entire device more streamlined and efficient, and the production efficiency is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0017] Figure 1 This is a first viewing angle diagram of the present invention.

[0018] Figure 2 This is a second viewing angle diagram of the present invention.

[0019] Figure 3 It is a schematic diagram of the cross-sectional structure of the spraying box in the present invention.

[0020] Figure 4 It is a front view of the cross-sectional structure of the spraying box in the present invention.

[0021] Figure 5 It is a schematic diagram of the expanded structure of the differential feeding mechanism and the centering and turning mechanism in the spraying box.

[0022] Figure 6 It is a schematic diagram of the connection structure between the roller and the frame in the differential feeding mechanism.

[0023] Figure 7 This is the motion state diagram of the casing body on the differential feeding mechanism.

[0024] Figure 8 It is a structural schematic diagram of the differential mechanism in the differential feeding mechanism.

[0025] Fig. 9 It is a top view schematic diagram of the differential mechanism in the differential feeding mechanism.

[0026] Fig.10 It is a structural schematic diagram of the centering and turning mechanism in the present invention.

[0027] Fig.11 It is a schematic diagram of the structure of the centering component in the centering and turning mechanism.

[0028] Fig.12 It is a top view schematic diagram of the centering component in the centering and turning mechanism.

[0029] Fig.13 for Fig.12 Enlarged view of point A in the middle.

[0030] Figure numerals: 1-spraying box, 2-loading table, 3-unloading table, 4-first motor, 5-second motor, 6-third motor, 7-conveyor roller, 8-discharge port, 9-box cover, 10-vacuum tube, 11-fourth motor, 12-fifth motor, 13-sixth motor, 14-feeding port, 15-spray pipe, 16-frame, 17-differential feeding mechanism, 18-centering and turning mechanism, 19-workbench, 20-card slot, 21-first working area, 22-second working area, 23-third working area, 24-roller, 25-first transmission shaft, 26-second transmission shaft, 27-third transmission shaft, 28-first belt, 2 9-first pulley, 30-first anti-slip sleeve, 31-second pulley, 32-second belt, 33-washer, 34-second anti-slip sleeve, 35-third pulley, 36-third belt, 37-sleeve, 38-turntable, 39-guide platform, 40-guide groove, 41-cylinder, 42-centering assembly, 421-connecting block, 422-guide block, 423-block, 424-driving block, 425-guide rod, 426-screw, 427-limit block, 428-limit switch, 429-connecting cavity, 4210-seventh motor, 4211-fourth belt, 4212-fourth pulley, 43-casing body. DETAILED DESCRIPTION

[0031] The following embodiments will be described in detail with reference to the accompanying drawings. In the drawings or descriptions, similar or identical parts use the same reference numerals, and in actual applications, the shape, thickness or height of each component may be enlarged or reduced. The embodiments listed in the present invention are only used to illustrate the present invention and are not used to limit the scope of the present invention. Any obvious modifications or changes made to the present invention do not depart from the spirit and scope of the present invention.

[0032] See also Figure 1 and Figure 2In an embodiment of the present invention, a three-phase asynchronous motor housing automatic spraying equipment comprises a spraying box 1, a loading platform 2 and a unloading platform 3. The motor housing to be sprayed is continuously fed into the spraying box 1 through the loading platform 2, and the motor housing that has been sprayed is continuously received and transported outward through the unloading platform 3, so as to realize the continuity of the housing spraying work and improve the processing efficiency. The spraying box 1 is a sealed structure, and its interior can be evacuated to realize vacuum adsorption coating, so as to ensure that the coating material is evenly attached to the surface of the housing; The loading platform 2 and the unloading platform 3 are both rotatably connected with a plurality of conveying rollers 7, and the plurality of conveying rollers 7 on the loading platform 2 and the plurality of conveying rollers 7 on the unloading platform 3 are all connected through a belt transmission structure (not shown in the figure). The loading platform 2 and the unloading platform 3 are both provided with a driving device (not shown in the figure), and the driving device is a motor and related electrical parts. The plurality of conveying rollers 7 on the loading platform 2 and the unloading platform 3 are respectively driven by the corresponding driving devices. In this embodiment, the loading platform 2, the unloading platform 3, the conveying rollers 7 and the driving device for driving the conveying rollers 7 are all prior art, which are not improved by the present invention and will not be described in detail.

[0033] See also Figure 1 and Figure 3 The spraying box 1 has a feed port 14 and a discharge port 8 on one side of the box body corresponding to the loading platform 2 and the unloading platform 3, and the feed port 14 and the discharge port 8 are both provided with a box cover 9, and the two box covers 9 are used to cover and seal the feed port 14 and the discharge port 8, respectively. A vacuum pipe 10 is fixed on one side of the top of the spraying box 1, and the inside of the spraying box 1 can be evacuated through the vacuum pipe 10 to form a vacuum negative pressure state inside the box body. In this state, the surface of the casing is coated, and the vaporized film material can be evenly attached to the casing; The spraying box 1 has a frame 16 installed inside, and a differential feeding mechanism 17 and a centering and turning mechanism 18 are arranged on the frame 16. The differential feeding mechanism 17 is used for differential feeding, so that the housing can maintain a certain speed for self-rotation during the conveying process. The differential feeding mechanism 17 includes a differential mechanism and a feeding mechanism, wherein the feeding mechanism is used to continuously convey the housing to one side, and the differential mechanism is used to adjust the conveying speed of the housing and make the housing rotate by adjusting the speed difference. The centering and turning mechanism 18 includes a centering mechanism and a turning mechanism, and the centering mechanism is used to align the housing and place it in the center on the feeding mechanism; The flipping mechanism is used to flip the casing so that the top and bottom sides of the casing are swapped to achieve and accelerate the all-round coating of the casing surface. In a conveying process, there is a dead angle at the bottom of the casing during spraying. By flipping the casing, the bottom of the casing is directly facing upward, and the bottom of the casing is directly coated, which saves time and effort. Although the casing is continuously conveyed by the feeding mechanism, the bottom of the casing will always face upward, but this will inevitably increase the length of the conveying line, causing the entire device to be larger and too complicated. By setting up a flipping mechanism, the casing can be directly flipped without expanding the conveying line, making the entire device more streamlined and efficient, and having higher production efficiency.

[0034] See also Figure 4 , Figure 5 , Figure 6 and Figure 7 A workbench 19 is arranged on the top of the frame 16. The workbench 19 is a frame structure. The cavity inside the workbench 19 is arranged from left to right as a first working area 21, a second working area 22 and a third working area 23. Spray pipes 15 are installed on the front and rear sides and the top of the spraying box 1 corresponding to the first working area 21 and the third working area 23, and a plurality of the spray pipes 15 on the same side constitute a group of spraying mechanisms for performing double-sided spraying on the inside and outside of the casing in the current working area. Two card slots 20 are arranged on the top of the workbench 19 corresponding to the rear side of the second working area 22. The two card slots 20 are symmetrical and cooperate with each other, and are used to clamp and limit the centering and turning mechanism 18; The spray pipe 15 is provided with a flat nozzle for diffusing the vaporized coating material. The gaseous particles generated after the coating material is heated and evaporated are connected to the spray pipe 15 through a conduit, and then sprayed into the inside of the spraying box 1 through the nozzle on the spray pipe 15. At this time, the inside of the spraying box 1 has been evacuated through the vacuum pipe 10, and the box is in a vacuum negative pressure state, and the gaseous film particles will be evenly adsorbed on the surface of the casing; The differential feeding mechanism 17 includes a plurality of rollers 24, which are evenly arranged from left to right in the first working area 21, the second working area 22 and the third working area 23, and the plurality of rollers 24 are rotatably connected to the cavity inside the workbench 19, a housing body 43 is placed on the workbench 19, and the housing body 43 is transported by the cooperation of the plurality of rollers 24; A first transmission shaft 25 and a second transmission shaft 26 are rotatably connected to the lower part of the front and rear sides of the first working area 21 and the third working area 23 inside the spraying box 1, and a third transmission shaft 27 is rotatably connected to the side of the spraying box 1 close to the second transmission shaft 26. A first pulley 29 is fixed to one end of the two first transmission shafts 25, the two second transmission shafts 26 and the third transmission shaft 27, and a first belt 28 is provided on each of the multiple first pulleys 29.

[0035] See also Figure 1 , Figure 2 , Figure 8 and Fig. 9 , the shaft bodies of the plurality of roller shafts 24 are sleeved with a first anti-slip sleeve 30, and one end of the plurality of roller shafts 24 is fixed with a second pulley 31, and the second pulleys 31 on each adjacent two of the plurality of roller shafts 24 are connected by a second belt 32, and the second pulley 31 on one of the plurality of roller shafts 24 corresponding to the side of the third transmission shaft 27 is connected to the first pulley 29 on the third transmission shaft 27 by the corresponding first belt 28. A third motor 6 is installed on the side of the outside of the spraying box 1 corresponding to the third transmission shaft 27, and one end of the output shaft of the third motor 6 is connected and fixed to one end of the third transmission shaft 27. The plurality of roller shafts 24, the third transmission shaft 27, the third motor 6 and the corresponding belt transmission structure cooperate to form the feeding mechanism together, and the third transmission shaft 27 is rotated by the third motor 6, and the plurality of roller shafts 24 are driven to rotate synchronously by the use of the belt transmission structure, so that the casing body 43 placed on the roller shaft 24 can be transported to one side; Both ends of the plurality of roller shafts 24 located in the first working area 21 and the third working area 23 are rotatably sleeved with sleeves 37, the inner ends of the plurality of sleeves 37 are sleeved and fixed with pad wheels 33, the wheel bodies of the plurality of pad wheels 33 are sleeved with second anti-slip sleeves 34, the outer ends of the plurality of sleeves 37 are sleeved and fixed with third pulleys 35, and two adjacent third pulleys 35 are connected by a third belt 36, the first pulleys 29 on the two first transmission shafts 25 and the third pulleys 35 at both ends of the corresponding roller shaft 24 located in the first working area 21 are connected by a first belt 28, and the first motor 4 and the fifth motor 12 are respectively installed on one side of the corresponding two first transmission shafts 25 outside the spraying box 1, and one end of the output shaft of the first motor 4 and one end of the output shaft of the fifth motor 12 are respectively connected and fixed to one end of the first transmission shaft 25 on the corresponding side; The first pulleys 29 on the two second transmission shafts 26 are connected to the third pulleys 35 at both ends of the corresponding roller shaft 24 in the third working area 23 through the first belt 28. The second motor 5 and the sixth motor 13 are respectively installed on one side of the two second transmission shafts 26 outside the spraying box 1, and one end of the output shaft of the second motor 5 and one end of the output shaft of the sixth motor 13 are respectively connected and fixed to one end of the second transmission shaft 26 on the corresponding side; The pad wheels 33 at both ends of the roller shaft 24 are independent of each other and can rotate freely. The plurality of pad wheels 33 located on the same side are driven by the corresponding third pulley 35 and the third belt 36 to form a group of pad wheel structures. Each group of pad wheel structures is driven by the corresponding motor and transmission shaft. In this embodiment, there are four groups of pad wheel structures, which are respectively located at the front and rear sides of the first working area 21 and the third working area 23. The rotation speed of the plurality of pad wheels 33 in the pad wheel structure is adjustable, which can be achieved by controlling the corresponding motor. The pad wheels 33 and the roller shaft 24 are independent of each other and can rotate separately. The rotation directions can be the same or different. By controlling the rotation speeds of the pad wheels 33 and the roller shaft 24, a difference is generated between the two to achieve the effect of differential operation. The diameter of the pad wheel 33 is larger than the diameter of the roller shaft 24 to adapt to the outer diameter of different parts of the casing body 43, so that the pad wheel 33 and the roller shaft 24 can both abut against the outer wall of the casing body 43. A plurality of pad wheels 33, a plurality of roller shafts 24 and corresponding motor drive structures cooperate to form the differential mechanism. The casing body 43 is placed on the roller shaft 24, and its two ends are respectively abutted against the pad wheel 33 on the corresponding side. The casing body 43 is driven to move by rotating the roller shaft 24. By changing the rotation speed of the pad wheel 33, the casing body 43 is caused to rotate during the movement. In the rotating state, the gaseous film particles can be attached to the casing surface in all directions, and there are no obstacles inside the casing. The gaseous film particles can easily enter the casing and evenly adhere to the inner wall of the casing, so that the double-sided coating treatment of the casing can be easily achieved. In this embodiment, there are four main situations when the differential mechanism is running, namely: The first type is that the pad wheel 33 and the roller shaft 24 have the same rotation speed and the same direction. In this case, the casing body 43 will be transported to one side on the roller shaft 24, and will not rotate during transportation, and the feeding speed will be accelerated; The second type is that the wheel 33 rotates at the same speed as the roller 24 but in opposite directions. In this case, the housing body 43 will no longer be transported to one side on the roller 24, but will only stay in place and rotate. At this time, the coating process can be performed; The third type is that the rotation speeds of the pad wheel 33 and the roller shaft 24 are different but the directions are the same. In this case, the housing body 43 will be transported to one side on the roller shaft 24, and during the transportation process, the housing body 43 will flip. Specifically, in this case, there are two cases: the rotation speed of the pad wheel 33 is greater than the rotation speed of the roller shaft 24, and the rotation speed of the pad wheel 33 is less than the rotation speed of the roller shaft 24. In both cases, the housing body 43 will flip. The specific flipping situation varies according to the speed difference. The relevant description is relatively complicated and will not be repeated here due to limited space. The fourth type is that the rotation speeds of the pad wheel 33 and the roller shaft 24 are different and the directions are also different. In this case, the casing body 43 may be transported to one side on the roller shaft 24, or it may not be transported to one side. Specifically, it needs to be determined according to the rotation speeds of the pad wheel 33 and the roller shaft 24. For example, when the rotation speed of the roller shaft 24 is much greater than the rotation speed of the pad wheel 33, although the directions of the two are different, the casing body 43 will still be transported to one side driven by the strong rotation speed of the roller shaft 24, and the casing itself will also flip over during the transportation process. For another example, when the rotation speed of the pad wheel 33 is much greater than the rotation speed of the roller shaft 24, the casing body 43 will not only be unable to be normally transported on the roller shaft 24, but will also reverse in the opposite direction. During the backward process, the casing itself will also flip over. In this case, the casing that has not been completely coated can be sent back to the working area for secondary coating. In the fourth type of situation, the movement state of the casing is different according to the speed difference between the pad wheel 33 and the roller shaft 24, and the difference in the movement state is more obvious. The relevant description is relatively complicated. Due to limited space, it will not be repeated here.

[0036] See also Fig.10 , Fig.11 , Fig.12 and Fig.13 The centering and turning mechanism 18 includes a turntable 38, a guide platform 39 and two centering components 42. The turntable 38 is rotatably connected to the rear side of the second working area 22 inside the spraying box 1. A fourth motor 11 is installed on the side of the turntable 38 outside the spraying box 1. One end of the output shaft of the fourth motor 11 is connected and fixed to one end of the rotating shaft of the turntable 38. The guide platform 39 is fixed on one side of the turntable 38, and two guide grooves 40 are symmetrically provided on the guide platform 39. The two centering components 42 are slidably connected to the guide platform 39. The guide platform 39 corresponds to two A cylinder 41 is installed on one side of each centering component 42, and the movable ends of the two cylinders 41 extend outward and are connected and fixed to the centering component 42 on the corresponding side. The centering component 42 can be pushed by the cylinder 41 to make the two centering components 42 approach each other or move away from each other. By making the two centering components 42 approach each other, the casing body 43 can be clamped between the two centering components 42, and then the casing can be turned over by using it in conjunction with the fourth motor 11 and the turntable 38, so that the top and bottom of the casing are mutually adjusted. The turntable 38, the two centering components 42 and the fourth motor 11 cooperate to form the material turning mechanism; The centering component 42 includes a connecting block 421, and a guide block 422 is fixed on one side of the connecting block 421 corresponding to the two guide grooves 40. The two guide blocks 422 are respectively slidably connected in the guide groove 40 on the corresponding side. Blocks 423 are fixed on the left and right ends of the connecting block 421 away from the guide block 422. The shapes of the two blocks 423 are adapted to the shapes of the grooves 20. When the centering component 42 is placed downward into the second working area 22, the two blocks 423 are respectively inserted into the grooves 20 on the corresponding side. In this embodiment, the connecting block 421, the two blocks 423 and the two guide blocks 422 cooperate to form a driving member for sliding on the guide platform 39, wherein the two blocks 423 and the connecting block 421 form a whole, and a connecting cavity 429 is opened inside the whole. Guide rods 425 are fixed to both ends of the two clamping blocks 423 away from the connecting block 421. The two guide rods 425 on the adjacent sides are a group, forming a group of guide structures, and one end of the two guide rods 425 on the adjacent sides is fixed with a limit block 427, and limit switches 428 are installed on the two limit blocks 427. The limit switches 428 are distance sensors that can be used with existing technologies and devices. The middle positions of the two limit blocks 427 facing the clamping block 423 are rotatably connected with screw rods 426, and one end of the two screw rods 426 rotates through the inner wall of the clamping block 423 on the corresponding side and extends into the connecting cavity 429. A seventh motor 4210 is installed in the connecting cavity 429, and a fourth pulley 4212 is fixed to one end of the output shaft of the seventh motor 4210 and one end of the two screw rods 426, and each adjacent two fourth pulleys 4212 are connected by a fourth belt 4211, and a driving block 424 is provided on one side of the two clamping blocks 423, and the two driving blocks 424 are respectively slidably connected to the two guide rods 425 on the corresponding side, and the two driving blocks 424 are respectively threadedly connected to the screw rods 426 on the corresponding side; In this embodiment, the driving block 424 is slidably connected to the two guide rods 425, and the driving block 424 is threadedly matched with the screw rod 426. By rotating the screw rod 426, the driving block 424 can be driven to move along the axial direction of the guide rod 425, so that the driving block 424 can be close to or away from the limit block 427. In the initial stage, when the centering component 42 is placed downwardly into the second working area 22, the two clamping blocks 423 are respectively clamped into the corresponding side of the clamping groove 20. At this time, the two sets of guide structures are respectively located in the gap between the two adjacent roller shafts 24; The tops of the driving block 424 and the limiting block 427 are flush with the top of the roller shaft 24. When the housing body 43 is transported to the second working area 22, the rotation of the roller shaft 24 is stopped, and the seventh motor 4210 is started to rotate the screw 426 to move the driving block 424 toward the limiting block 427. During the movement of the driving block 424, it will gradually approach and abut against the outer wall of the housing. As the driving block 424 continues to move, it will bring the housing body 43 to the side of the limiting block 427. The limit switch 428 arranged on the limit block 427 is used to detect the translation distance of the casing. When it is detected that the casing moves to the center above the roller 24, the seventh motor 4210 is controlled and turned off. At this time, the middle part of the casing body 43 is located on the roller 24, and the two ends of the casing are respectively placed on the pad wheels 33 on the corresponding side, thereby completing the casing centering processing. The centered casing can rotate during the transportation process. The driving block 424, the limit block 427 and the corresponding guide structure cooperate with each other to form the centering mechanism. The casing can be centered on the roller 24 through the centering mechanism to facilitate the coating process.

[0037] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0038] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A three-phase asynchronous motor housing automatic spraying equipment, characterized in that: include A spraying box (1), wherein a frame (16) is installed inside the spraying box (1), and a differential feeding mechanism (17) and a centering and turning mechanism (18) are arranged on the frame (16), wherein the differential feeding mechanism (17) comprises a differential mechanism and a feeding mechanism, wherein the differential mechanism is used to adjust the conveying speed of the casing and to make the casing rotate by adjusting the speed difference, wherein the feeding mechanism is used to continuously convey the casing to one side, wherein the centering and turning mechanism (18) comprises a centering mechanism and a turning mechanism, wherein the centering mechanism is used to align the casing and place it in the center on the feeding mechanism, and wherein the turning mechanism is used to turn over the casing so that the top and bottom sides of the casing are swapped, so as to realize and accelerate the coating of the casing surface in all directions; A loading platform (2) and a unloading platform (3), wherein the loading platform (2) and the unloading platform (3) are both rotatably connected to a plurality of conveying rollers (7), and the plurality of conveying rollers (7) on the loading platform (2) and the unloading platform (3) are respectively driven by external driving devices, the loading platform (2) is used to continuously feed the motor casing to be sprayed into the spraying box (1), and the unloading platform (3) is used to continuously receive the motor casing that has been sprayed and transport it outward, so as to achieve the continuity of the casing spraying operation.

2. The automatic spraying equipment for the casing of a three-phase asynchronous motor according to claim 1 is characterized in that: A workbench (19) is arranged on the top of the frame (16). The workbench (19) is a frame structure. The cavity inside the workbench is arranged from left to right as a first working area (21), a second working area (22) and a third working area (23). Spray pipes (15) are installed on the front and rear sides and the top of the spraying box (1) corresponding to the first working area (21) and the third working area (23). A plurality of spray pipes (15) located on the same side constitute a group of spraying mechanisms for performing double-sided spraying on the inside and outside of the casing in the current working area. Two card slots (20) are arranged on the top of the workbench (19) corresponding to the rear side of the second working area (22). The two card slots (20) are symmetrical and cooperate with each other, and are used to clamp and limit the centering and turning mechanism (18).

3. The automatic spraying equipment for the casing of a three-phase asynchronous motor according to claim 2 is characterized in that: The differential feeding mechanism (17) comprises a plurality of rollers (24), the plurality of rollers (24) being evenly arranged from left to right in the first working area (21), the second working area (22) and the third working area (23), and the plurality of rollers (24) being rotatably connected to the cavity inside the workbench (19), a housing body (43) being placed on the workbench (19), and the housing body (43) being transported by the cooperation of the plurality of rollers (24), and the interior of the spraying box (1) corresponding to the A first transmission shaft (25) and a second transmission shaft (26) are rotatably connected to the lower sides of the front and rear sides of the first working area (21) and the third working area (23), respectively; a third transmission shaft (27) is rotatably connected to one side of the inside of the spraying box (1) close to the second transmission shaft (26); first pulleys (29) are fixed to one end of the two first transmission shafts (25), the two second transmission shafts (26) and the third transmission shaft (27); and a first belt (28) is provided on each of the plurality of first belt pulleys (29); The shafts of the plurality of rollers (24) are all sleeved with a first anti-slip sleeve (30), and one end of the plurality of rollers (24) is fixed with a second pulley (31), the second pulleys (31) on each adjacent two of the plurality of rollers (24) are connected by a second belt (32), the second pulley (31) on one of the plurality of rollers (24) corresponding to the side of the third transmission shaft (27) is connected by a corresponding first belt (28), a third motor (6) is installed on the side of the outside of the spraying box (1) corresponding to the third transmission shaft (27), one end of the output shaft of the third motor (6) is connected and fixed to one end of the third transmission shaft (27), the plurality of rollers (24), the third transmission shaft (27), the third motor (6) and the corresponding belt transmission structure cooperate to form the feeding mechanism.

4. The automatic spraying equipment for the casing of a three-phase asynchronous motor according to claim 3 is characterized in that: The two ends of the plurality of roller shafts (24) located in the first working area (21) and the third working area (23) are rotatably sleeved with sleeves (37), the inner ends of the plurality of sleeves (37) are sleeved and fixed with pad wheels (33), the wheel bodies of the plurality of pad wheels (33) are sleeved with second anti-slip sleeves (34), the outer ends of the plurality of sleeves (37) are sleeved and fixed with third pulleys (35), and two adjacent third pulleys (35) are connected to each other through a third belt (36), and the first pulleys (29) on the two first transmission shafts (25) and the third pulleys (35) at both ends of a corresponding roller shaft (24) located in the first working area (21) are connected to each other through a first belt (28); A first motor (4) and a fifth motor (12) are respectively installed on one side of the two first transmission shafts (25) outside the spraying box (1); one end of the output shaft of the first motor (4) and one end of the output shaft of the fifth motor (12) are respectively connected and fixed to one end of the first transmission shaft (25) on the corresponding side; the first pulleys (29) on the two second transmission shafts (26) and the third pulleys (35) at both ends of a corresponding roller shaft (24) in the third working area (23) are connected by a first belt (28); a second motor (5) and a sixth motor (13) are respectively installed on one side of the two second transmission shafts (26) outside the spraying box (1); one end of the output shaft of the second motor (5) and one end of the output shaft of the sixth motor (13) are respectively connected and fixed to one end of the second transmission shaft (26) on the corresponding side.

5. The automatic spraying equipment for the casing of a three-phase asynchronous motor according to claim 4 is characterized in that: The pad wheels (33) at both ends of the roller shaft (24) are independent of each other and can rotate freely. The plurality of pad wheels (33) located on the same side are driven by the corresponding third pulley (35) and the third belt (36) to form a group of pad wheel structures. Each group of pad wheel structures is driven by the corresponding motor and transmission shaft. The diameter of the pad wheel (33) is larger than the diameter of the roller shaft (24) to adapt to the outer diameter of different parts of the housing body (43). The plurality of pad wheels (33), the plurality of roller shafts (24) and the corresponding motor drive structure cooperate to form the differential mechanism.

6. The automatic spraying equipment for the casing of a three-phase asynchronous motor according to claim 5, characterized in that: The centering and turning mechanism (18) comprises a turntable (38), a guide platform (39) and two centering components (42), wherein the turntable (38) is rotatably connected to the rear side of the inside of the spraying box (1) corresponding to the second working area (22), a fourth motor (11) is installed on the side of the outside of the spraying box (1) corresponding to the turntable (38), one end of the output shaft of the fourth motor (11) is connected and fixed to one end of the rotating shaft of the turntable (38), the guide platform (39) is fixed on one side of the turntable (38), and the Two guide grooves (40) are symmetrically provided on the guide platform (39), and the two centering components (42) are slidably connected to the guide platform (39). A cylinder (41) is installed on one side of the guide platform (39) corresponding to the two centering components (42), and the movable ends of the two cylinders (41) extend outward and are fixedly connected to the centering components (42) on the corresponding side. The turntable (38), the two centering components (42) and the fourth motor (11) cooperate to form the material turning mechanism.

7. The automatic spraying equipment for the casing of a three-phase asynchronous motor according to claim 6, characterized in that: The centering component (42) comprises a connecting block (421), a guide block (422) being fixed on one side of the connecting block (421) corresponding to the two guide grooves (40), the two guide blocks (422) being slidably connected in the guide grooves (40) on the corresponding side, and a clamping block (423) being fixed on both left and right ends of the connecting block (421) away from the guide block (422), the outer shapes of the two clamping blocks (423) being adapted to the shapes of the clamping grooves (20), the two clamping blocks (423) being respectively clamped in the clamping grooves (20) on the corresponding side, and the connecting block (421), the two clamping blocks (423) and the two guide blocks (422) being matched to form a driving member for sliding on the guide platform (39).

8. The automatic spraying equipment for the casing of a three-phase asynchronous motor according to claim 7, characterized in that: Both ends of the two clamping blocks (423) away from the connecting block (421) are fixed with guide rods (425), the two guide rods (425) on the adjacent side are grouped together to form a guide structure, and one end of the two guide rods (425) on the adjacent side is fixed with a limit block (427), and both limit switches (428) are installed on the two limit blocks (427), and the middle positions of the two limit blocks (427) facing the clamping blocks (423) are rotatably connected with a screw rod (426), and the two clamping blocks (423) and the connecting block (4 21) form a whole, wherein a connecting cavity (429) is provided inside, one end of each of the two screw rods (426) rotates through the inner wall of the block (423) on the corresponding side and extends into the connecting cavity (429), a seventh motor (4210) is installed in the connecting cavity (429), one end of the output shaft of the seventh motor (4210) and one end of each of the two screw rods (426) are fixed with a fourth pulley (4212), and each adjacent two of the fourth pulleys (4212) are connected by a fourth belt (4211) for transmission.

9. The automatic spraying equipment for the casing of a three-phase asynchronous motor according to claim 8, characterized in that: A driving block (424) is provided on one side of each of the two clamping blocks (423); the two driving blocks (424) are respectively slidably connected to the two guide rods (425) on the corresponding side, and the two driving blocks (424) are respectively threadedly connected to the lead screw (426) on the corresponding side; the driving block (424), the limit block (427) and the corresponding guide structure cooperate to form the centering mechanism.

10. The automatic spraying equipment for the casing of a three-phase asynchronous motor according to claim 1 or 9, characterized in that: The spraying box (1) is a sealed structure, and a vacuum tube (10) is fixed on one side of the top thereof. The vacuum tube (10) is used to evacuate the interior of the spraying box (1) and form a vacuum negative pressure state inside the box.

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