Assembly equipment for shaded pole motor

Abstract

The invention discloses assembly equipment for a shaded pole motor, and relates to the technical field of shaded pole motor assembly, the assembly equipment comprises an assembly table and a rotary disc located above the assembly table, an intermittent rotary table used for driving the rotary disc to rotate in an indexing mode is installed in the middle of the assembly table, and an assembly seat used for positioning shaded pole motor parts is arranged on the rotary disc. According to the assembling equipment for the shaded pole motor, the assembling and welding section and the assembling section are arranged to assemble short circuit rings on a stator and other parts assembled with the stator respectively, the adjusting mechanism is driven to operate through the reversing air cylinder and the jacking air cylinder, the assembling base can be made to horizontally turn over in a reciprocating mode, the short circuit rings with different widths can be jacked, and the assembling efficiency is improved. Therefore, the assembly base used for positioning the shaded pole motor component sequentially achieves positioning assembly, positioning bending and positioning welding of the two sets of short circuit rings at the assembly and welding section, it is ensured that the assembly equipment can conduct high-quality welding assembly on the two sets of short circuit rings with different widths, and the welding missing phenomenon at the welding positions of the short circuit rings is prevented.

Description

Technical Field

[0001] This invention relates to the field of shaded-pole motor assembly technology, specifically to an assembly device for a shaded-pole motor. Background Technology

[0002] A shaded-pole motor is a simple, low-cost single-phase AC motor that generates a rotating magnetic field through short-circuited copper rings (shaded-pole windings) on the stator, thus achieving self-starting. Shaded-pole motors are widely used in various low-power household appliances and equipment. They are also commonly used in car air purifiers, enabling them to release large amounts of negative oxygen ions and active oxygen.

[0003] In existing technologies, the assembly of shaded-pole motors generally involves using equipment such as gripping robots, suction robots, riveting equipment, and screw-driving machines to assemble the motor components onto the stator, thus completing the assembly of the shaded-pole motor. However, the short-circuit rings on the stator are usually assembled by welding. In order to reduce the difficulty of welding the short-circuit rings after the rotor of the shaded-pole motor is assembled, the short-circuit rings are usually assembled onto the stator first, and then laser welding is performed. However, each shaded-pole motor stator needs to install two sets of short-circuit rings with different widths. Using conventional assembly and welding methods will cause the welding points of the short-circuit rings to shift and incompletely weld, which makes it easy for the short-circuit ring joints to be poorly welded during the assembly of the shaded-pole motor. Summary of the Invention

[0004] The purpose of this invention is to provide an assembly device for a shaded-pole motor to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an assembly device for a shaded-pole motor, comprising an assembly table and a rotary table located above the assembly table, wherein an intermittent rotary table for driving the rotary table to rotate in increments is installed in the middle of the assembly table, and an assembly seat for positioning shaded-pole motor components is provided on the rotary table.

[0006] The assembly table is equipped with a welding section and an assembly section. The welding section is used to assemble and weld the short-circuit ring to the stator of the shaded-pole motor.

[0007] The assembly and welding section includes a second loading station for clamping and feeding the short-circuit ring, a third loading station for clamping and feeding the stator of the shaded-pole motor, and a welding station for welding the short-circuit ring.

[0008] A bending mechanism is provided on one side of the feeding station three, which is used to bend and squeeze the end of the short-circuit ring that extends out of the upper edge of the stator.

[0009] An adjustment mechanism is provided near the through hole of the rotary table. A reversing cylinder is installed on the surface of the assembly table near the second loading station, the third loading station and the welding station. The reversing cylinder drives the adjustment mechanism to rotate the assembly seat horizontally. A lifting cylinder is installed on the surface of the assembly table near the second loading station. The lifting cylinder drives the adjustment mechanism to lift the short-circuit ring.

[0010] Preferably, the upper surface of the mounting base has shallow grooves and deep grooves for placing the stator and winding of the motor, respectively. The shallow grooves have an inner cavity extending downward to place the bottom bearing bracket and the motor rotor. The mounting base has two sets of positioning cavities a with different widths through the edge near the inner cavity. The positioning cavities a are used to vertically place two sets of short-circuit rings with different widths.

[0011] Preferably, the feeding station three for clamping and feeding the shaded-pole motor stator includes a lead screw module one arranged along the feeding direction, and the lead screw module one is equipped with a stator clamp that can be raised and lowered by a longitudinal cylinder. The stator clamp can be moved by the lead screw module one to feed the clamped shaded-pole motor stator. The side of the stator clamp is equipped with a pressure rod for abutting against the upper side of the stator.

[0012] Preferably, the bending mechanism includes a bracket installed on the side of the output end of the longitudinal cylinder, with parallel electric push rods vertically installed inside the bracket, and sliding seats that are longitudinally pushed and pulled by the electric push rods on both sides of the bottom of the bracket.

[0013] A V-shaped movable arm is hinged to one side of the slide, and rollers are connected to both ends of the movable arm;

[0014] The bottom of the support has straight and curved tracks on both sides. The curved track includes an end curved groove and a horizontal groove connecting the curved groove. The movable arm on one side of the support drives two rollers to bend the narrow-pitch short-circuit ring along the straight track, so that the end of the narrow-pitch short-circuit ring extending from the upper side of the stator is horizontally bent. The movable arm on the other side of the support drives two rollers to bend the wide-pitch short-circuit ring along the curved track, so that the end of the wide-pitch short-circuit ring extending from the upper side of the stator is curved at the curved groove and horizontally straightened at the horizontal groove.

[0015] Preferably, the welding station for welding the short-circuit ring includes a second lead screw module arranged along the forward adjustment direction, and the second lead screw module is equipped with a laser welding gun that can be laterally offset via an adjustment cylinder. The laser welding gun for welding the short-circuit ring is adjusted forward and horizontally by the second lead screw module and the adjustment cylinder respectively, so that the laser welding gun can be aligned with the weld gap of the short-circuit ring for welding.

[0016] Preferably, the edge surface of the rotary table is provided with through holes at equal included angles, and the inner wall surface of the through holes is provided with spiral grooves;

[0017] A guide hole parallel to the central axis of the through hole is provided on the side of the rotary table near the through hole;

[0018] The bottom of the mounting base is equipped with a bearing, and the bearing is collinear with the central axis of the inner cavity of the motor rotor. The mounting base is interference-fitted with the upper edge of the through hole of the rotary table through the bearing at the bottom, so that the mounting base can rotate with the central axis of the inner cavity of the motor rotor.

[0019] Preferably, a collar and a first spring are arranged sequentially from bottom to top in the through hole on the surface of the rotary table. A limit block is provided on the rotary table near the bottom of the through hole. The top of the first spring abuts against the bottom wall of the mounting base. A sliding plate that passes through the positioning cavity a is fixed on the surface of the collar.

[0020] Preferably, a rotating component that fits onto the slide plate is also provided inside the through hole, and a pin is fixed to the outer edge of the rotating component, and the pin is connected to the spiral groove.

[0021] The central rod of the rotating component passes downward through the No. 1 spring and the collar and engages with the limiting block on the lower side of the rotary table;

[0022] The limiting block has a clearance opening in the middle, and a frustum block matching the size of the clearance opening is fixed at the output end of the reversing cylinder.

[0023] The output end of the lifting cylinder is fixed with a U-shaped pad for avoiding the limit block.

[0024] Preferably, the guide hole is provided with a threaded pin and a second spring, the threaded pin passing downward through the second spring and threadedly engaging with the limit block.

[0025] Preferably, the assembly section includes:

[0026] The first feeding station is a material feeding station that uses adsorption to feed material to the bottom bearing frame;

[0027] The fourth feeding station is used to clamp and feed materials to the rotor;

[0028] The fifth feeding station is for adsorption and feeding of materials to the top bearing frame;

[0029] A screw-driving station that uses screws to fasten and assemble the top bearing bracket, stator, and bottom bearing bracket;

[0030] And, a material handling station for clamping and unloading the completed shaded-pole motor assembly.

[0031] Compared with the prior art, the beneficial effects of the present invention are as follows: The assembly equipment for the shaded-pole motor is equipped with a welding section and an assembly section to assemble the short-circuit rings on the stator and other components assembled with the stator, respectively. By driving the adjustment mechanism through the reversing cylinder and the lifting cylinder, the assembly seat can be horizontally reciprocated and rotated, and the short-circuit rings of different widths can be lifted. Thus, the assembly seat used to position the shaded-pole motor components can sequentially perform positioning assembly, positioning bending, and positioning welding of two sets of short-circuit rings in the welding section. This ensures that the assembly equipment can perform high-quality welding assembly of two sets of short-circuit rings of different widths, prevents incomplete welding at the welding points of the short-circuit rings, and prevents the short-circuit rings from being poorly welded during the assembly of the shaded-pole motor. Attached Figure Description

[0032] Figure 1 This is a top view of the assembly equipment for the shaded-pole motor of the present invention.

[0033] Figure 2 This is a three-dimensional structural schematic diagram of the assembly equipment for the shaded-pole motor of the present invention;

[0034] Figure 3 This is a three-dimensional cross-sectional view of the assembly equipment for the shaded-pole motor of the present invention;

[0035] Figure 4 This is a three-dimensional structural diagram of the linkage between the material feeding station three and the bending mechanism of the present invention;

[0036] Figure 5 This is a first three-dimensional structural schematic diagram of the bending mechanism of the present invention;

[0037] Figure 6 This is a schematic diagram of the second three-dimensional structure of the bending mechanism of the present invention;

[0038] Figure 7 This is a three-dimensional structural diagram of the welding station of the present invention;

[0039] Figure 8 This is a three-dimensional structural diagram of the rotary table of the present invention;

[0040] Figure 9 This is a three-dimensional exploded view of the docking structure of the rotary table and the assembly base of the present invention;

[0041] Figure 10 This is a three-dimensional cross-sectional view of the rotary table of the present invention;

[0042] Figure 11 For the present invention Figure 10 Enlarged structural diagram at point A in the diagram;

[0043] Figure 12 This is a three-dimensional cross-sectional schematic diagram of the lifting and adjusting structure of the reversing cylinder of the present invention at three positions in the loading station;

[0044] Figure 13 This is a three-dimensional structural schematic diagram of the adjustment mechanism of the present invention;

[0045] Figure 14 This is a three-dimensional structural diagram of the assembly base of the present invention.

[0046] In the diagram: 1. Assembly table; 2. Rotary table; 201. Intermittent rotary table; 202. Assembly base; 203. Spiral groove; 204. Guide hole; 3. Welding section; 301. Loading station two; 302. Loading station three; 3021. Longitudinal cylinder; 3022. Stator fixture; 3023. Pressure rod; 303. Welding station; 3031. Adjusting cylinder; 3032. Laser welding gun; 4. Assembly section; 401. Loading station one; 40 2. Loading station 4; 403. Loading station 5; 404. Screw driving station; 405. Material picking station; 5. Bending mechanism; 501. Bracket; 502. Electric actuator; 503. Slide; 504. Movable arm; 6. Adjustment mechanism; 601. Collar; 602. Slide plate; 603. Spring No. 1; 604. Rotating component; 605. Limit block; 606. Threaded pin; 607. Spring No. 2; 7. Reversing cylinder; 8. Lifting cylinder. Detailed Implementation

[0047] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0048] Please see Figures 1-3 , Figure 8 , Figure 9 and Figure 14 This invention provides a technical solution: an assembly device for a shaded-pole motor, including an assembly platform 1 and a rotary table 2 located above the assembly platform 1. An intermittent turntable 201 for driving the rotary table 2 to rotate in increments is installed in the middle of the assembly platform 1. An assembly seat 202 for positioning the shaded-pole motor components is provided on the rotary table 2. The upper surface of the assembly seat 202 has shallow grooves and deep grooves for placing the motor stator and windings respectively. An inner cavity for placing the bottom bearing bracket and the motor rotor extends downward in the shallow groove. Two sets of positioning cavities a of different widths are provided through the edge of the assembly seat 202 near the inner cavity. The positioning cavities a are used to vertically place two sets of short-circuit rings of different widths. The assembly platform 1 is provided with a welding section 3 and an assembly section 4. The welding section 3 is used to assemble and weld the short-circuit rings to the stator of the shaded-pole motor.

[0049] In this embodiment, the rotary table 201 drives the rotary disk 2 to rotate in increments on the assembly table 1, thereby enabling the rotary table 2 to rotate and drive the assembly base 202 to align with different operating positions of the welding section 3 and the assembly section 4, thus facilitating the assembly base 202 to perform step-by-step assembly of the shaded pole motor at different positions.

[0050] Please see Figure 1 and Figure 2 The assembly and welding section 3 includes a second loading station 301 for clamping and feeding short-circuit rings, which enables the second loading station 301 to sequentially clamp wide-pitch short-circuit rings and narrow-pitch short-circuit rings and load them into the positioning cavity a of the assembly base 202; a third loading station 302 for clamping and feeding the stator of the shaded-pole motor; and a welding station 303 for welding short-circuit rings.

[0051] Please see Figure 1 , Figure 2 and Figure 4 The feeding station 302 for clamping and feeding the stator of the shaded-pole motor includes a lead screw module 1 arranged along the feeding direction. The lead screw module 1 is equipped with a stator clamp 3022 that can be raised and lowered by a longitudinal cylinder 3021. The stator clamp 3022 can be moved by the lead screw module 1 to feed the clamped stator of the shaded-pole motor. The side of the stator clamp 3022 is equipped with a pressure rod 3023 for abutting against the upper side of the stator.

[0052] In this embodiment, the longitudinal cylinder 3021 is driven by the lead screw module of the feeding station 302 to move along the feeding direction. The longitudinal cylinder 3021 moves the stator clamp 3022 at the output end up and down, so that the stator clamp 3022 can clamp or release the stator. When the stator clamp 3022 is clamping the motor stator on both sides, the pressure rod 3023 on the stator clamp 3022 abuts against the upper side of the stator, so that the stator can be kept horizontally when clamped. When the stator clamp 3022 places the clamped stator on the assembly base 202, the clamped stator is positioned in the shallow groove on the upper side of the assembly base 202.

[0053] Please see Figures 1-3 and Figure 7 The welding station 303 for welding the short-circuit ring includes a lead screw module 2 arranged along the forward adjustment direction. The lead screw module 2 is equipped with a laser welding gun 3032 that can be laterally offset via an adjustment cylinder 3031. The laser welding gun 3032 for welding the short-circuit ring is adjusted forward and horizontally by the lead screw module 2 and the adjustment cylinder 3031, respectively, so that the laser welding gun 3032 can be aligned with the gap to be welded on the short-circuit ring for welding.

[0054] In this embodiment, when the rotary table 2 drives several assembly seats 202 to rotate to the welding station 303, the forward position and horizontal position of the laser welding gun 3032 are adjusted by the lead screw module 2 and the adjusting cylinder 3031 respectively. When the laser welding gun 3032 is started, it can be aligned with the weld gap of the short-circuit ring for welding, ensuring that the wide-pitch short-circuit ring and the narrow-pitch short-circuit ring are fixed on the stator to prevent loosening. Furthermore, the laser welding gun 3032 can weld the wide-pitch short-circuit ring and the narrow-pitch short-circuit ring that are close to each other, so that the wide-pitch short-circuit ring and the narrow-pitch short-circuit ring that are close to each other can be connected together.

[0055] Please see Figures 1-3 Assembly section 4 includes a loading station 401 for adsorbing and feeding the bottom bearing bracket, a loading station 402 for clamping and feeding the rotor, a loading station 403 for adsorbing and feeding the top bearing bracket, a screw-driving station 404 for fastening and assembling the top bearing bracket, stator and bottom bearing bracket with screws, and a material removal station 405 for clamping and unloading the completed shaded-pole motor assembly.

[0056] In this embodiment, a rotary table 2 with indexing rotation drives several assembly seats 202 distributed at equal angles to rotate to the loading station 401. Since the loading station 401 is the starting point of the assembly equipment, it can first place the bottom bearing bracket into the lowest part of the inner cavity of the assembly seat 202. Then, the rotor and the top bearing bracket are sequentially clamped and adsorbed by the loading stations 402 and 403 for assembly and feeding. After that, the screws are screwed into the top bearing bracket, stator and bottom bearing by the screw-driving station 404. The frame is fastened and assembled. Finally, the assembled shaded-pole motor is clamped and exported through the material picking station 405 to ensure that the assembled shaded-pole motor can be continuously assembled. The material loading station 401 for adsorbing the bottom bearing frame, the material loading station 402 for clamping the rotor, the material loading station 403 for adsorbing the top bearing frame, the screw-driving station 404 for fastening the top bearing frame, stator and bottom bearing frame, and the material picking station 405 for clamping and exporting the assembled shaded-pole motor are all existing technologies and will not be described in detail here.

[0057] Please see Figures 9-11 The rotary disk 2 has through holes with equal included angles on its edge surface. The inner wall of the through holes has spiral grooves 203. The rotary disk 2 has a guide hole 204 parallel to the central axis of the through holes on the side near the through holes. The bottom of the mounting base 202 is equipped with a bearing, and the bearing is collinear with the central axis of the inner cavity of the motor rotor. The mounting base 202 is interference-fitted with the upper edge of the through holes of the rotary disk 2 through the bearing at the bottom, so that the mounting base 202 can rotate with the central axis of the inner cavity of the motor rotor.

[0058] In this embodiment, the bearings at the bottom of several mounting bases 202 are interference-fitted to the through holes on the surface of the rotary table 2, and the bearings enable the mounting bases 202 to be horizontally rotated on the rotary table 2.

[0059] Please see Figures 4-6 A bending mechanism 5 is provided on one side of the loading station 302, which is used to bend and squeeze the end of the short-circuit ring extending from the upper edge of the stator. The bending mechanism 5 includes a bracket 501 installed on the side of the output end of the longitudinal cylinder 3021. Parallel electric push rods 502 are vertically installed inside the bracket 501. Slide seats 503 that are longitudinally pushed and pulled by the electric push rods 502 are slidable on both sides of the bottom of the bracket 501. A V-shaped movable arm 504 is hinged on one side of the slide seat 503. Roller rollers are connected to both ends of the movable arm 504.

[0060] The bottom of the bracket 501 has straight tracks and curved tracks on both sides. The curved track includes an end curved groove and a horizontal groove connecting the curved groove. The movable arm 504 on one side of the bracket 501 drives two rollers to bend the narrow-pitch short-circuit ring along the straight track, so that the end of the narrow-pitch short-circuit ring extending from the upper side of the stator is horizontally bent. The movable arm 504 on the other side of the bracket 501 drives two rollers to bend the wide-pitch short-circuit ring along the curved track, so that the end of the wide-pitch short-circuit ring extending from the upper side of the stator is curved at the curved groove and horizontally straightened at the horizontal groove.

[0061] In this embodiment, when the stator clamp 3022 positions the stator in the shallow groove on the upper side of the assembly base 202, the ends of the wide-pitch short-circuit ring and the narrow-pitch short-circuit ring, which are extended upward from the positioning cavity a of the assembly base 202, pass through the reserved gaps on both sides of the stator. This allows the formed wide-pitch short-circuit ring and the narrow-pitch short-circuit ring to be positioned and assembled with the stator. Then, the two electric push rods 502 on the bracket 501 pull the slide 503, which in turn pulls the movable arm 504 upward. This causes the rollers at the end of the movable arm 504 to move closer together along the straight and curved tracks on both sides of the bracket 501. This allows the two sets of rollers to roll and bend the ends of the wide-pitch short-circuit ring and the narrow-pitch short-circuit ring exposed on the upper side of the stator, ensuring that the wide-pitch short-circuit ring and the narrow-pitch short-circuit ring can wrap around the stator.

[0062] As one set of rollers moves closer along the straight track, it can horizontally bend the narrow-pitch short-circuit ring. As the other set of rollers moves closer along the end groove and horizontal groove of the curved track, it can arc-shapedly bend and horizontally straighten the wide-pitch short-circuit ring. This ensures that the longer end of the wide-pitch short-circuit ring exposed on the upper side of the stator is stably attached to the upper side of the stator after being horizontally bent, creating an arc-shaped bend at the bent part and preventing the bent end from warping against the upper surface of the stator.

[0063] Please see Figure 3 , Figures 8-14An adjustment mechanism 6 is provided near the through hole of the rotary table 2. A reversing cylinder 7 is installed on the surface of the assembly table 1 near the loading station 2 301, the loading station 302 and the welding station 303. The reversing cylinder 7 drives the adjustment mechanism 6 to drive the assembly base 202 to rotate horizontally. A lifting cylinder 8 is installed on the surface of the assembly table 1 near the loading station 2 301. The lifting cylinder 8 drives the adjustment mechanism 6 to drive the short-circuit ring to move upward.

[0064] A collar 601 and a first spring 603 are arranged sequentially from bottom to top in the through hole on the surface of the rotary table 2. A limit block 605 is arranged below the through hole on the rotary table 2. The top of the first spring 603 abuts against the bottom wall of the mounting base 202. A sliding plate 602 that penetrates into the positioning cavity a is fixed on the surface of the collar 601.

[0065] In this embodiment, when the collar 601 compresses the first spring 603 to contract and causes the slide plate 602 to move upward, the slide plate 602 can move along the positioning cavity a. At this time, the slide plate 602 moving upward along the positioning cavity a can lift the short-circuit ring to move upward. Conversely, it can retract the short-circuit ring into the positioning cavity a and expose the upper end of the short-circuit ring through the upper opening of the positioning cavity a, which facilitates the positioning and docking of the stator of the shaded-pole motor with the upper end of the short-circuit ring.

[0066] Please see Figures 11-14 The through hole is also provided with a rotating part 604 that is fitted with the slide plate 602. The outer edge of the rotating part 604 is fixed with a pin, and the pin is connected to the spiral groove 203. The central rod of the rotating part 604 passes downward through the first spring 603 and the collar 601 and is engaged with the limiting block 605 on the lower side of the rotary table 2. The limiting block 605 has a clearance opening in the middle. The output end of the reversing cylinder 7 is fixed with a frustum block that matches the size of the clearance opening. The output end of the lifting cylinder 8 is fixed with a U-shaped pad for clearance of the limiting block 605.

[0067] In this embodiment, since a limiting block 605 that moves with the rotation of the rotary table 2 is provided below the assembly base 202, when the loading station 2 301 sorts and puts the wide-pitch short-circuit rings and narrow-pitch short-circuit rings into the corresponding positioning cavity a of the first group, the top of the slide plate 602 can support the corresponding short-circuit rings; when the reversing cylinder 7 pulls down the clearance of the limiting block 605 through the frustum block at the output end, the limiting block 605 will drive the rotating part 604 to move down, thereby causing the pin of the outer edge of the rotating part 604 to move along the spiral groove 203, so that the rotating part 604 will rotate 180° when it moves down. At this time, the rotating part 604 The slide plate 602 and collar 601 will rotate 180°. The 180° rotation of the slide plate 602 will cause the assembly seat 202 to rotate 180° around the through hole. At this time, the wide-pitch short-circuit ring and the narrow-pitch short-circuit ring can be sorted and placed into the corresponding positioning cavity a in the second group using the second loading station 301. Conversely, when the reversing cylinder 7 pushes the clearance of the limit block 605 upward, the rotating part 604 will cause the slide plate 602 to rotate 180° in the opposite direction when it moves upward. At this time, the assembly seat 202 will rotate 180° in the opposite direction around the through hole, ensuring that the reversing cylinder 7, which moves up and down, can reset the assembly seat 202 after rotating 180° in the forward direction.

[0068] When the reversing cylinder 7 at the loading station 302 pulls down the limiting block 605, the assembly seat 202 at the loading station 302 will rotate 180° around the through hole, which makes it convenient for the bending mechanism 5 to alternately bend the two sets of short-circuit rings on the stator. The problem of bending the two sets of short-circuit rings in a narrow position can be solved in one station without changing the position of the rotary table 2. It is necessary to note that when the assembly seat 202 at the loading station 302 is rotating, the longitudinal cylinder 3021 will first drive the pressure rod 3023 on the stator clamp 3022 away from the upper surface of the stator that is abutting.

[0069] When the reversing cylinder 7 at welding station 303 pulls down the limiting block 605, the assembly seat 202 at welding station 303 will rotate 180° around the through hole, so that the gaps to be welded of the two sets of short-circuit rings are alternately aligned with the bottom of the laser welding gun 3032. The welding problem of two sets of short-circuit rings in narrow positions can be solved in one station without changing the position of the rotary table 2, ensuring that the assembly equipment can position and prevent leakage welding of two sets of short-circuit rings with different widths.

[0070] When the stator is installed into the shallow groove of the assembly base 202 at the loading station 302, the U-shaped pad at the output end of the lifting cylinder 8 pushes the collar 601 upward, thereby causing the collar 601 to drive the slide plate 602 to lift the short-circuit ring. This allows the wide-pitch short-circuit ring and the narrow-pitch short-circuit ring to complete the insertion with the reserved gap of the stator after exiting the positioning cavity a. Then, through the reserved gap on the surface of the stator and the positioning cavity a on the surface of the assembly base 202, the short-circuit ring that has been lifted into place and whose end is exposed on the upper side of the stator can be interference-locked, thereby preventing the short-circuit ring from shifting. This continues until the ends of the wide-pitch short-circuit ring and the narrow-pitch short-circuit ring are bent by the bending mechanism 5, and then the output end is reset downward by the lifting cylinder 8. When the lifting cylinder 8 resets the output end downward, the elastic compression of the collar 601 by the first spring 603 resets the collar 601, which causes the collar 601 to drive the slide plate 602 downward, so that the top of the slide plate 602 is away from the short-circuit ring.

[0071] It should be noted that at the loading station 302, after the lifting cylinder 8 drives the slide plate 602 to lift the short-circuit ring and move it to the docking position, the reversing cylinder 7 can only drive the rotating part 604 to move down and up if the lifting cylinder 8 drives the output end to descend without interfering with the reversing cylinder 7 driving the rotating part 604 to move down.

[0072] Please see Figures 10-13 The guide hole 204 is equipped with a threaded pin 606 and a second spring 607. The threaded pin 606 passes downward through the second spring 607 and is threadedly connected to the limit block 605.

[0073] In this embodiment, when the reversing cylinder 7 pulls the limiting block 605, the threaded pin 606 compresses the second spring 607 in the guide hole 204. Conversely, when the reversing cylinder 7 pushes the limiting block 605, the second spring 607 elastically resets the movement of the threaded pin 606. When the rotary table 2 drives the limiting block 605 to rotate, the clearance of the limiting block 605 disengages from the frustum block at the output end of the reversing cylinder 7. At this time, the second spring 607 continuously squeezes the threaded pin 606, thereby enabling... The limiting block 605 is continuously attached to the lower surface of the rotary table 2, and the pin at the edge of the rotating part 604 is aligned with the upper limit end of the spiral groove 203. It should be noted that when the rotary table 2 drives the limiting block 605 to rotate, the output end of the lifting cylinder 8 must be lowered to a position below the limiting block 605 to prevent motion interference between the rotating limiting block 605 and the output end of the lifting cylinder 8. The contents not described in detail in this specification are prior art known to those skilled in the art.

Claims

1. An assembly device for a shaded-pole motor, comprising an assembly table (1) and a rotary table (2) located above the assembly table (1), characterized in that: The assembly table (1) is equipped with an intermittent turntable (201) for driving the rotary table (2) to rotate in increments. The rotary table (2) is provided with an assembly seat (202) for positioning the shaded pole motor components. The assembly table (1) is provided with a welding section (3) and an assembly section (4). The welding section (3) is used to assemble and weld the short-circuit ring to the stator of the shaded pole motor. The assembly and welding section (3) includes a second loading station (301) for clamping and feeding the short-circuit ring, a third loading station (302) for clamping and feeding the stator of the shaded-pole motor, and a welding station (303) for welding the short-circuit ring. A bending mechanism (5) is provided on one side of the loading station three (302) for bending and pressing the end of the short-circuit ring that extends out of the upper edge of the stator; The rotary table (2) is provided with an adjustment mechanism (6) near the through hole. The assembly table (1) is provided with a reversing cylinder (7) near the loading station 2 (301), loading station 3 (302) and welding station (303). The reversing cylinder (7) drives the adjustment mechanism (6) to drive the assembly seat (202) to rotate horizontally. The assembly table (1) is provided with a lifting cylinder (8) near the loading station 2 (301). The lifting cylinder (8) drives the adjustment mechanism (6) to drive the short-circuit ring to move upward.

2. The assembly equipment for a shaded-pole motor according to claim 1, characterized in that: The upper surface of the mounting base (202) is provided with shallow grooves and deep grooves for placing the stator and winding of the power supply respectively. The shallow groove extends downward into the inner cavity for placing the bottom bearing bracket and the motor rotor. The mounting base (202) has two sets of positioning cavities a with different widths through the edge near the inner cavity. The positioning cavities a are used to vertically place two sets of short-circuit rings with different widths.

3. The assembly equipment for a shaded-pole motor according to claim 1, characterized in that: The third feeding station (302) for clamping and feeding the stator of the shaded-pole motor includes a lead screw module 1 arranged along the feeding direction. The lead screw module 1 is equipped with a stator clamp (3022) that can be raised and lowered by a longitudinal cylinder (3021). The stator clamp (3022) can be moved by the lead screw module 1 to feed the clamped stator of the shaded-pole motor. The side of the stator clamp (3022) is equipped with a pressure rod (3023) for abutting against the upper side of the stator.

4. The assembly equipment for a shaded-pole motor according to claim 3, characterized in that: The bending mechanism (5) includes a bracket (501) installed on the side of the output end of the longitudinal cylinder (3021). Parallel electric push rods (502) are vertically installed inside the bracket (501). Slide seats (503) that are longitudinally pushed and pulled by the electric push rods (502) are slidable on both sides of the bottom of the bracket (501). A V-shaped movable arm (504) is hinged to one side of the slide (503), and rollers are connected to both ends of the movable arm (504); The bottom of the bracket (501) is provided with a straight track and a curved track on both sides. The curved track includes an end curved groove and a horizontal groove connecting the curved groove. The movable arm (504) on one side of the bracket (501) drives two rollers to bend the narrow-pitch short-circuit ring along the straight track, so that the end of the narrow-pitch short-circuit ring extending from the upper side of the stator is horizontally bent. The movable arm (504) on the other side of the bracket (501) drives two rollers to bend the wide-pitch short-circuit ring along the curved track, so that the end of the wide-pitch short-circuit ring extending from the upper side of the stator is curved at the curved groove and horizontally straightened at the horizontal groove.

5. The assembly equipment for a shaded-pole motor according to claim 1, characterized in that: The welding station (303) for welding the short-circuit ring includes a second lead screw module arranged along the forward adjustment direction. The second lead screw module is equipped with a laser welding gun (3032) that can be laterally offset via an adjustment cylinder (3031). The laser welding gun (3032) for welding the short-circuit ring is adjusted forward and horizontally by the second lead screw module and the adjustment cylinder (3031) respectively, so that the laser welding gun (3032) can be aligned with the gap to be welded on the short-circuit ring for welding.

6. The assembly equipment for a shaded-pole motor according to claim 2, characterized in that: The rotary table (2) has through holes at equal included angles on its edge surface, and spiral grooves (203) are formed on the inner wall of the through holes. The rotary table (2) has a guide hole (204) on the side near the through hole that is parallel to the central axis of the through hole. The bottom of the mounting base (202) is equipped with a bearing, and the bearing and the inner cavity center axis of the motor rotor are collinear. The mounting base (202) is interference-fitted with the upper edge of the through hole of the rotary table (2) through the bearing at the bottom, so that the mounting base (202) can rotate on the inner cavity center axis of the motor rotor.

7. An assembly device for a shaded-pole motor according to claim 6, characterized in that: A collar (601) and a first spring (603) are arranged sequentially from bottom to top in the through hole on the surface of the rotary table (2). A limit block (605) is arranged below the through hole on the rotary table (2). The top of the first spring (603) abuts against the bottom wall of the mounting base (202). A sliding plate (602) that passes through the positioning cavity a is fixed on the surface of the collar (601).

8. An assembly device for a shaded-pole motor according to claim 7, characterized in that: A rotating component (604) fitted with the slide plate (602) is also provided in the through hole. The outer edge of the rotating component (604) is fixed with a pin, and the pin is connected to the spiral groove (203). The central rod of the rotating component (604) passes downward through the first spring (603) and the collar (601) and engages with the limiting block (605) on the lower side of the rotary table (2); The limiting block (605) has a clearance opening in the middle, and the output end of the reversing cylinder (7) is fixed with a frustum block that matches the size of the clearance opening; The output end of the lifting cylinder (8) is fixed with a U-shaped pad for avoiding the limit block (605).

9. An assembly device for a shaded-pole motor according to claim 8, characterized in that: The guide hole (204) is provided with a threaded pin (606) and a second spring (607). The threaded pin (606) passes through the second spring (607) downward and is threadedly connected to the limit block (605).

10. An assembly device for a shaded-pole motor according to claim 1, characterized in that: Assembly section (4) includes: Loading station 1 (401) for adsorption feeding of bottom bearing frame. The fourth (402) feeding station for clamping and feeding the rotor. The fifth (403) loading station for adsorption feeding of the top bearing frame. Screw fastening station (404) for fastening the top bearing bracket, stator and bottom bearing bracket with screws. And, a material handling station (405) for clamping and unloading the completed shaded-pole motor assembly.

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