Multi-station automatic assembly machine for coreless motor rotor

Abstract

The utility model discloses a coreless motor rotor multi-station automatic assembling machine which comprises a middle fixing disc, a first rotating disc assembly is rotatably arranged on the periphery of the middle fixing disc, a plurality of sets of positioning clamps are arranged on the first rotating disc assembly in the circumferential direction, and a feeding mechanism is used for automatically feeding commutator assemblies to the first positioning clamps. The first alignment mechanism is used for aligning the commutator assembly to enable the commutator segments to be located at set positions, the second alignment mechanism drives the winding coil to rotate relative to the commutator assembly to enable the pins and the commutator segments to be correspondingly arranged, and the spot welding mechanism is used for welding the pins and the corresponding commutator segments one by one. The resistance testing mechanism is used for testing resistance values of adjacent welding spots, the dispensing mechanism is used for packaging the commutator assembly and the end face of the welding end of a winding coil, the polishing mechanism is used for polishing the peripheral face of a motor shaft of the commutator assembly, and the discharging mechanism is used for taking out the processed hollow cup motor rotor. Therefore, the processing efficiency of the coreless motor rotor is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of hollow cup motor rotor's processing equipment, especially relates to a hollow cup motor rotor multi-station automatic assembly machine. BACKGROUND

[0002] Hollow cup motor rotor includes commutator assembly and winding coil, commutator assembly includes motor shaft, fixedly arranged in the outer periphery of motor shaft rotor frame and installs the commutator on the outer periphery of rotor frame, and the commutator upper end surface circumferential distribution has multiple groups of commutator sheet, and the winding coil is provided with multiple groups of pins, and the pin of winding coil is welded and fixed with the commutator sheet on the commutator.

[0003] At present, hollow cup motor rotor has the following technical problems in processing:

[0004] 1. Commutator assembly adopts manual feeding, and the manual feeding efficiency is low, so the overall processing efficiency is also low;

[0005] 2. After commutator assembly and winding coil are assembled, the position of commutator sheet of commutator assembly and pin of winding coil is aligned manually, the efficiency is very low and the precision is not high;

[0006] 3. The corresponding pin of commutator sheet of commutator assembly and winding coil is welded, resistance tested and glued by hand one by one, the efficiency is very low, so it needs to be improved. SUMMARY

[0007] The utility model discloses a hollow cup motor rotor multi-station automatic assembly machine can realize automatic feeding, automatic alignment, spot welding, resistance test, glue, polishing and discharging, thereby effectively improve the processing efficiency of hollow cup motor rotor.

[0008] The technical purpose is achieved by the following technical scheme: a hollow cup motor rotor multi-station automatic assembling machine, which comprises an intermediate fixed disc, a first rotating disc assembly, a feeding mechanism, a first alignment mechanism, a second alignment mechanism, a spot welding mechanism, a resistance testing mechanism, a dispensing mechanism, a polishing mechanism and a discharging mechanism, the first rotating disc assembly is rotatably arranged at the outer periphery of the intermediate fixed disc, a plurality of positioning clamps are arranged on the first rotating disc assembly in a circumferential direction, the feeding mechanism is used for automatically feeding a commutator assembly to the first positioning clamp, the first alignment mechanism is used for aligning the commutator assembly so that the commutating sheet is located at a set position, the second alignment mechanism is used for rotating the winding coil relative to the commutator assembly so that the pin is correspondingly arranged with the commutating sheet, the spot welding mechanism is used for welding the pin with the corresponding commutating sheet one by one, the resistance testing mechanism is used for testing the resistance value of the adjacent welding points, the dispensing mechanism is used for packaging the welding end face of the commutator assembly and the winding coil, the polishing mechanism is used for polishing the outer peripheral surface of the motor shaft of the commutator assembly, and the discharging mechanism is used for taking out the processed hollow cup motor rotor.

[0009] Further, the positioning clamp comprises a fixed seat, a first positioning assembly arranged on the fixed seat, a bearing seat rotatably mounted on the fixed seat, and a clamping assembly arranged on the bearing seat, the lower part of the bearing seat is provided with a rotary driving part, the bearing seat is provided with a positioning column, the positioning column is provided with a central passage for the motor shaft, the positioning column is provided with a supporting part matched with the inner diameter of the winding coil, the first positioning assembly is movable between a locking position and an unlocking position, the bearing seat is locked on the fixed seat through the first positioning assembly, and the clamping assembly is movable between a clamping position and an unlocking position, the winding coil and the commutator assembly are clamped and fixed through the clamping assembly.

[0010] Further, the first rotating disc assembly is provided with an assembly station between the first alignment mechanism and the second alignment mechanism, the winding coil is sleeved on the outer periphery of the commutator assembly at the assembly station, the intermediate fixed disc is provided with a first pushing piece corresponding to the positions of the assembly station, the first alignment mechanism, the second alignment mechanism and the discharging mechanism, and the first pushing piece is used for driving the first clamping assembly to switch from the clamping position to the unlocking position.

[0011] Further, the intermediate fixed disc is provided with an image recognition sensor corresponding to the position of the second alignment mechanism, the image recognition sensor is used for identifying whether the pin of the winding coil and the commutating sheet of the commutator assembly are aligned, so as to assist the second alignment mechanism in adjusting the pin position of the winding coil.

[0012] Further, the intermediate fixed disc is provided with a second pushing piece corresponding to the positions of the spot welding mechanism, resistance testing mechanism, glue dispensing mechanism and polishing mechanism, the second pushing piece is used to drive the first positioning assembly to switch from the locking position to the unlocking position, the lower end of the first rotating disc assembly is provided with a rotary driving unit corresponding to the positions of the spot welding mechanism, resistance testing mechanism, glue dispensing mechanism and polishing mechanism, the rotary driving unit comprises a mounting seat, a driving motor fixedly installed on the mounting seat and a lifting assembly for driving the mounting seat to lift, the output end of the driving motor is provided with a joint part matched with the rotary driving part, and the driving motor drives the first bearing seat to rotate through the joint part.

[0013] Further, the resistance testing mechanism comprises a first testing mechanism and a second testing mechanism, the first testing mechanism is arranged between the work station of the spot welding mechanism and the work station of the glue dispensing mechanism, the second testing mechanism is arranged between the work station of the polishing mechanism and the work station of the blanking mechanism, and a waste taking-out mechanism is arranged between the work station of the first testing mechanism and the work station of the glue dispensing mechanism.

[0014] Further, the glue dispensing mechanism comprises a glue dispensing mechanism for quick-drying glue and a glue dispensing mechanism for UV glue, and a hot air drying mechanism and a UV lamp drying mechanism are arranged between the glue dispensing mechanism and the polishing mechanism, the hot air drying mechanism is arranged between the glue dispensing mechanism for quick-drying glue and the glue dispensing mechanism for UV glue, and the UV lamp drying mechanism is arranged between the work station of the glue dispensing mechanism for UV glue and the work station of the polishing mechanism.

[0015] Further, the feeding mechanism comprises a vibrating disc, a material shelf and a material taking-out mechanism, the vibrating disc is used to orderly and directionally convey the commutator assembly, the material shelf is fixedly arranged at the output end of the vibrating disc, the material shelf is provided with a material taking-out cavity with an open upper end and a feeding channel communicated with the material taking-out cavity and the output end of the vibrating disc, and the material taking-out mechanism comprises an openable and closable clamping jaw assembly, a first moving assembly for driving the clamping jaw assembly to move vertically and reciprocally and a second moving assembly for driving the clamping jaw assembly to move longitudinally and reciprocally.

[0016] Further, the material shelf is provided with a second positioning assembly, the second positioning assembly can move reciprocally between a locking position and an unlocking position, the second positioning assembly can position the commutator assembly in the material taking-out cavity at a set position when the second positioning assembly is at the locking position, and the side adjacent to the second positioning assembly of the clamping jaw assembly is provided with an unlocking block, when the clamping jaw assembly moves downward to a clamping position, the unlocking block drives the second positioning assembly to move towards the unlocking position to unlock the locking of the commutator assembly by the second positioning assembly, so that the clamping jaw assembly can accurately clamp the commutator assembly.

[0017] Further, the work station of the blanking mechanism and the work station of the feeding mechanism are a workpiece residual detection work station, the intermediate fixed disc is provided with an infrared sensor corresponding to the position of the workpiece residual detection work station, and whether there is a workpiece not taken down is detected by the infrared sensor.

[0018] In summary, the hollow cup motor rotor multi-station automatic assembling machine has the following beneficial effects:

[0019] The hollow cup motor rotor multi-station automatic assembling machine can realize automatic feeding, automatic alignment, spot welding, resistance testing, dispensing, polishing and discharging, thereby effectively improving the processing efficiency of the hollow cup motor rotor. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a schematic view of the overall structure of the utility model.

[0021] Figure 2 It is a top view of the utility model.

[0022] Figure 3 It is a schematic view of the structure of the feeding mechanism of the utility model.

[0023] Figure 4 It is a schematic view of the structure of the material shelf of the utility model.

[0024] Figure 5 It is a schematic view of the structure of the utility model Figure 4 The enlarged view of A of the utility model.

[0025] Figure 6 It is a schematic view of the structure of the positioning pressing plate of the utility model.

[0026] Figure 7 It is a schematic view of the structure of the positioning clamp of the utility model.

[0027] Figure 8 It is a top view of the positioning clamp of the utility model.

[0028] Figure 9 It is a schematic view of the structure of the utility model Figure 8 The sectional view of B of the utility model.

[0029] Figure 10 It is a schematic view of the structure of the rotary drive unit of the utility model.

[0030] Figure 11 It is a schematic view of the structure of the second alignment mechanism of the utility model.

[0031] Figure 12 It is a schematic view of the structure of the coil pressing mechanism of the utility model.

[0032] 10, middle fixed disc; 11, second pushing piece; 20, rotating disc assembly; 21, positioning clamp; 211, fixed seat; 212, first positioning assembly; 2121, connecting plate A; 2122, connecting plate B; 2123, connecting rod; 2124, positioning part; 2125, elastic piece A; 213, bearing seat; 2131, rotating driving part; 2132, positioning column; 2133, positioning notch; 214, clamping assembly; 2141, connecting block A; 2142, connecting block B; 2143, connecting column; 2144, clamping part; 2145, elastic piece B; 30, feeding mechanism; 31, vibrating disc; 32, material shelf; 321, material taking cavity; 322, feeding channel; 33, material taking mechanism; 331, clamping jaw assembly; 332, first moving assembly; 333, second moving assembly; 34, second positioning assembly; 341, positioning pressing plate; 342, elastic piece C; 343, positioning groove; 344, limiting plate; 345, flange; 35, unlocking block; 40, first alignment mechanism; 50, second alignment mechanism; 51, image recognition sensor; 52, first pushing piece; 53, mounting plate; 54, pushing cylinder; 55, adjusting wheel; 56, tensioning wheel; 57, driving wheel; 58, first motor; 60, spot welding mechanism; 70, resistance testing mechanism; 71, first testing mechanism; 72, second testing mechanism; 73, waste taking-out mechanism; 80, dispensing mechanism; 81, quick-drying adhesive dispensing mechanism; 82, UV adhesive dispensing mechanism; 83, hot air drying mechanism; 84, UV lamp drying mechanism; 90, polishing mechanism; 100, discharging mechanism; 110, coil pressing mechanism; 1101, coil pressing cylinder; 1102, pressing block; 1103, fixed sleeve; 1104, pressing column; 1105, elastic piece D; 1106, jackscrew; 120, infrared sensor; 130, infrared inductor; 140, hollow cup motor rotor; 141, commutator assembly; 1411, commutating sheet; 1412, motor shaft; 142, winding coil; 1421, pin; 150, rotating driving unit; 151, mounting seat; 152, driving motor; 1521, joint part; 153, lifting assembly. DETAILED DESCRIPTION

[0033] The utility model will be further explained in connection with the drawings below.

[0034] As Figures 1-12As shown, a hollow cup motor rotor multi-station automatic assembly machine, including base, intermediate fixed disc 10, first rotating disc assembly 20, feeding mechanism 30, first alignment mechanism 40, second alignment mechanism 50, spot welding mechanism 60, resistance testing mechanism 70, dispensing mechanism 80, polishing mechanism 90, discharging mechanism 100, the intermediate fixed disc 10 is fixedly installed on the base, the first rotating disc assembly 20 is rotatably arranged on the outer periphery of the intermediate fixed disc 10, a power drive unit for driving the first rotating disc assembly 20 to rotate intermittently is arranged on the base, a plurality of positioning clamps 21 are arranged on the first rotating disc assembly 20 in the circumferential direction, and the number of the positioning clamps 21 can be set according to the number of stations.

[0035] The positioning clamp 21 comprises a fixed seat 211, a first positioning assembly 212 arranged on the fixed seat 211, a bearing seat 213 rotatably mounted on the fixed seat 211, and a clamping assembly 214 arranged on the bearing seat 213. The lower part of the bearing seat 213 has a rotary drive part 2131, and a positioning column 2132 is arranged on the bearing seat 213. The positioning column 2132 is provided with a central passage for the motor shaft 1412 to pass through, and the positioning column 2132 has a support part matched with the inner diameter of the winding coil 142. The first positioning assembly 212 can move between a locking position and an unlocking position, and the bearing seat 213 is locked to the fixed seat 211 by the first positioning assembly 212. The clamping assembly 214 can move between a clamping position and an unlocking position, and the winding coil 142 and the commutator assembly 141 are clamped and fixed by the clamping assembly 214.

[0036] The first positioning assembly 212 comprises a first connecting plate A 2121, a first connecting plate B 2122, and two connecting rods 2123 connecting the first connecting plate A 2121 and the first connecting plate B 2122. The two sides of the first fixed seat 211 are respectively provided with a first guide groove A arranged through. The two connecting rods 2123 are respectively guided and matched with the corresponding first guide groove A. The position of the first bearing seat 213 towards the first connecting plate A 2121 is provided with a positioning notch 2133. The first connecting plate A 2121 is provided with a positioning part 2124 matched with the positioning notch 2133. The first connecting plate B 2122 is provided with a first elastic member A 2125 between the first connecting plate B 2122 and the first fixed seat 211. The first clamping assembly 214 comprises a first connecting block A 2141, a first connecting block B 2142, and a first connecting column 2143 of the first connecting block A 2141 and the first connecting block B 2142. The first bearing seat 213 is provided with a first guide groove B for the first connecting column 2143 to stretch and contract. The side of the first connecting block A 2141 towards the positioning column 2132 is provided with a first clamping part 2144. The first connecting block B 2142 is provided with a first elastic member B 2145 between the first connecting block B 2142 and the first bearing seat 213.

[0037] The feeding mechanism 30 is used for automatically feeding the commutator assembly 141 to the first positioning clamp 21, and comprises a vibrating disc 31, a material shelf 32 and a material taking mechanism 33. The vibrating disc 31 is used for orderly and directional conveying of the commutator assembly 141. The material shelf 32 is fixedly arranged at the output end of the vibrating disc 31, and is provided with a material taking cavity 321 with an open upper end and a feeding passage 322 communicating the material taking cavity 321 and the output end of the vibrating disc 31. The material taking mechanism 33 comprises an openable and closable jaw assembly 331, a first moving assembly 332 for driving the jaw assembly 331 to move vertically and reciprocally, and a second moving assembly 333 for driving the jaw assembly 331 to move longitudinally and reciprocally.

[0038] The material shelf 32 is provided with a second positioning assembly 34, which can move reciprocally between a locking position and an unlocking position. When the second positioning assembly 34 is in the locking position, the commutator assembly 141 in the material taking cavity 321 can be positioned at a set position. The jaw assembly 331 is provided with an unlocking block 35 adjacent to one side of the second positioning assembly 34. When the jaw assembly 331 moves downward to a clamping position, the unlocking block 35 drives the second positioning assembly 34 to move toward the unlocking position to unlock the locking of the commutator assembly 141 by the second positioning assembly 34, so that the jaw assembly 331 can accurately clamp the commutator assembly 141. Specifically, the second positioning assembly 34 comprises a positioning pressing plate 341 and an elastic member C 342. The material shelf 32 is provided with a guide passage through which the positioning pressing plate 341 slides transversely. The positioning pressing plate 341 partially penetrates through the guide passage and extends into the material taking cavity 321. The positioning pressing plate 341 has a positioning groove 343 open to the side of the feeding passage 322. The commutator assembly 141 is positioned at the set position by the groove wall of the positioning groove 343. The positioning pressing plate 341 has a tendency to move toward the material taking cavity 321 under the action of the elastic member C 342. The material shelf 32 is provided with a limiting plate 344 corresponding to the two sides of the positioning pressing plate 341, which limits the moving stroke of the positioning pressing plate 341.

[0039] The first alignment mechanism 40 is used for aligning the commutator assembly 141 so that the commutator segment 1411 is located at a set position. Specifically, the first alignment mechanism 40 is used for adjusting the position of the commutator assembly 141 so that the commutator segment 1411 of the commutator assembly 141 is at the set position. The first alignment mechanism 40 is a prior art, which will not be described in detail herein. For details, please refer to the Chinese patent (Patent Publication No. CN201659409U) entitled “Workpiece Rotating Down-pressing Alignment Device”.

[0040] The second alignment mechanism 50 drives the winding coil 142 to rotate relative to the commutator assembly 141 to correspondingly arrange the pin 1421 with the commutator segment 1411. Further, the intermediate fixed disc 10 is provided with an image recognition sensor 51 corresponding to the position of the second alignment mechanism 50. The image recognition sensor 51 recognizes whether the pin 1421 of the winding coil 142 and the commutator segment 1411 of the commutator assembly 141 are aligned, thereby assisting the second alignment mechanism 50 to adjust the position of the pin 1421 of the winding coil 142. The second alignment mechanism 50 includes a mounting plate 53 and a push air cylinder 54 for driving the mounting plate 53 to move longitudinally. The mounting plate 53 is provided with an adjusting wheel 55, a tensioning wheel 56 and a driving wheel 57. The adjusting wheel 55 is provided with two groups and is flushly arranged on the side of the mounting plate 53 adjacent to the rotating disc assembly 20. The outer periphery of the adjusting wheel 55, the tensioning wheel 56 and the driving wheel 57 is provided with a transmission belt. The lower end of the mounting plate 53 is provided with a first motor 58 for driving the driving wheel 57 to rotate. The transmission belt between the two adjusting wheels 55 drives the winding coil 142 to rotate relative to the commutator assembly 141, so that the pin 1421 of the winding coil 142 corresponds to the commutator segment 1411 of the commutator assembly 141. Specifically, the commutator assembly 141 has a certain rotational damping between the center channel of the positioning column 2132, so that when the transmission belt drives the winding coil 142 to rotate, the commutator assembly 141 will not rotate.

[0041] The first rotating disc assembly 20 is provided with an assembly station between the first alignment mechanism 40 and the second alignment mechanism 50. The winding coil 142 is sleeved on the outer periphery of the commutator assembly 141 at the assembly station. The winding coil 142 can be grabbed and placed on the outer periphery of the positioning column 2132 of the positioning clamp 21 of the assembly station by the transfer mechanism. The intermediate fixed disc 10 is provided with a first push piece 52 corresponding to the positions of the assembly station, the first alignment mechanism 40, the second alignment mechanism 50 and the feeding mechanism 100. The first push piece 52 is used to drive the first clamping assembly 214 to switch from the clamping position to the unclamping position.

[0042] The spot welding mechanism 60 is used for welding the pins 1421 and the corresponding commutator segments 1411 one by one, the spot welding mechanism 60 is a prior art, which is not described in the present application, the resistance testing mechanism 70 is used for testing the resistance value of the adjacent welding points, the resistance testing mechanism 70 measures the resistance value by detecting two adjacent welding points, and the resistance value can be used to judge whether the winding coil 142 has problems such as grounding, turn-to-turn short circuit, open circuit, and turn shortage, and the detection of whether the connection welding points of the winding coil 142 and the commutator assembly 141 have welding problems, the resistance testing mechanism 70 and the testing method belong to the prior art, which is not described in the present application, for example, the hollow cup motor coil detection system and method based on PLC control disclosed in Chinese patent (publication number CN113917375B) can be referred to. The dispensing mechanism 80 is used for packaging the welding end face of the commutator assembly 141 and the winding coil 142, the dispensing mechanism 80 is a prior art, which is not described in the present application, the polishing mechanism 90 is used to solve the problem that the outer circumferential surface of the motor shaft 1412 is not smooth due to oxidation, the polishing mechanism 90 is a prior art, which is not described in the present application, and the hollow cup motor rotor 140 polishing mechanism 90 disclosed in Chinese patent (application publication number CN220162086U) can be referred to in detail. The blanking mechanism 100 is used to take out the processed hollow cup motor rotor 140.

[0043] The second push piece 11 is arranged at the position corresponding to the spot welding mechanism 60, the resistance testing mechanism 70, the dispensing mechanism 80, and the polishing mechanism 90 of the intermediate fixed disc 10, and is used to drive the first positioning assembly 212 to switch from the locked position to the unlocked position. The rotating drive unit 150 is arranged at the position corresponding to the spot welding mechanism 60, the resistance testing mechanism 70, the dispensing mechanism 80, and the polishing mechanism 90 of the lower end of the first rotating disc assembly 20, and includes a mounting seat 151, a driving motor 152 fixedly installed on the mounting seat 151, and a lifting assembly 153 for driving the mounting seat 151 to lift. The output end of the driving motor 152 is provided with a joint portion 1521 matched with the rotating drive portion 2131, and the driving motor 152 drives the first bearing seat 213 to rotate through the joint portion 1521. The rotating drive unit 150 can drive the bearing seat 213 to rotate relative to the fixed seat 211, that is, drive the winding coil 142 and the commutator assembly 141 to rotate synchronously, so as to facilitate the spot welding mechanism 60 to spot weld each corresponding pin 1421 and commutator segment 1411, facilitate the resistance testing mechanism 70 to test the adjacent welding points, facilitate the dispensing mechanism 80 to dispense and package the welding surface of the commutator assembly 141, and facilitate the polishing mechanism 90 to polish the electronic shaft.

[0044] The resistance testing mechanism 70 comprises a first testing mechanism 71 and a second testing mechanism 72, the first testing mechanism 71 is arranged between the station where the spot welding mechanism 60 is arranged and the station where the dispensing mechanism 80 is arranged, the second testing mechanism 72 is arranged between the station where the polishing mechanism 90 is arranged and the station where the unloading mechanism 100 is arranged, and a waste taking-out mechanism 73 is arranged between the station where the first testing mechanism 71 is arranged and the station where the dispensing mechanism 80 is arranged.

[0045] The dispensing mechanism 80 comprises a quick-drying glue dispensing mechanism 81 and a UV glue dispensing mechanism 82, and a hot air drying mechanism 83 and a UV lamp drying mechanism 84 are arranged between the dispensing mechanism 80 and the polishing mechanism 90, wherein the hot air drying mechanism 83 is arranged between the quick-drying glue dispensing mechanism 81 and the UV glue dispensing mechanism 82, and the UV lamp drying mechanism 84 is arranged between the station where the UV glue dispensing mechanism 82 is arranged and the station where the polishing mechanism 90 is arranged.

[0046] The station where the unloading mechanism 100 is arranged and the station where the feeding mechanism 30 is arranged are a workpiece residual detection station, and the infrared sensor 120 is arranged on the fixed disc 10 corresponding to the position of the workpiece residual detection station, so as to detect whether there is a workpiece not taken down through the infrared sensor 120.

[0047] Preferably, the first rotating disc assembly 20 is provided with twenty-four stations, that is, twenty-four positioning clamps 21 are arranged on the first rotating disc assembly 20, the first station is a feeding station, a feeding mechanism 30 is arranged at the first station, the feeding mechanism 30 is used for automatically feeding the commutator assembly 141 to the positioning clamp 21, the second station is a first alignment station, a first alignment mechanism 40 is arranged at the second station and is used for aligning the position of the commutator segment 1411 of the commutator assembly 141, the third station is a detection station, an infrared sensor 130 is arranged at the third station of the intermediate fixed disc 10, whether the positioning clamp 21 at the third station is provided with the commutator assembly 141 is detected through the infrared sensor 130, the fourth station is an assembly station, the winding coil 142 is moved to the outer periphery of the commutator assembly 141 at the fourth station through a transfer mechanism, the fifth station, the eighth station and the twelfth station are all coil pressing stations, the intermediate fixed disc 10 is provided with a coil pressing mechanism 110 corresponding to the positions of the fifth station, the eighth station and the twelfth station, the pin 1421 of the winding coil 142 is pre-pressed through the coil pressing mechanism 110 at the fifth station, so that the position of the pin 1421 is detected by the image recognition sensor 51 at the seventh station, the sixth station is a vacant station, the sixth station is used to coordinate the different processing time required by each station, the seventh station is a second alignment station, the winding coil 142 and the pin 1421 are aligned with the position of the commutator segment 1411 of the commutator assembly 141 through the cooperation of the second alignment mechanism 50 and the image recognition sensor 51, the pin 1421 of the winding coil 142 is pressed downward through the coil pressing mechanism 110 at the eighth station so as to be attached to the commutator segment 1411 of the commutator assembly 141, thereby facilitating the spot welding of the pin 1421 and the commutator segment 1411 by the spot welding mechanism 60 at the ninth station, the ninth station is a spot welding station, the pins 1421 of each group of winding coils 142 are spot welded with the corresponding commutator segments 1411 of the commutator assembly 141 through the spot welding mechanism 60, the tenth station and the twenty-second station are both resistance test stations, the first test mechanism 71 is arranged at the position of the tenth station of the intermediate fixed disc 10, the resistance value of the adjacent welding points is measured through the first test mechanism 71, so as to detect whether the welding is qualified, the eleventh station is an NG taking-out station, a waste taking-out mechanism 73 is arranged at the eleventh station, the hollow cup motor rotor 140 (the winding coil 142 and the commutator assembly 141) detected as unqualified is removed through the waste taking-out mechanism 73 at the eleventh station, the coil pressing mechanism 110 at the twelfth station is used to solve the problem that the pin 1421 is raised due to high temperature generated during spot welding, the thirteenth station is a spot quick dry adhesive station, the spot quick dry adhesive mechanism 81 at the spot quick dry adhesive station is used for spot quick dry adhesive of the pin 1421 of the winding coil 142 and one end of the commutator segment 1411 of the commutator assembly 141.The fourteenth station and the fifteenth station are hot air drying stations, the middle fixed disc 10 is provided with a hot air drying mechanism 83 corresponding to the positions of the fourteenth station and the fifteenth station, and the hot air drying mechanism 83 is used for quickly drying the quick-drying glue; the sixteenth station is a UV glue dotting station, the middle fixed disc 10 is provided with a UV glue dotting mechanism 82 corresponding to the sixteenth station, and the UV glue dotting mechanism 82 is used for packaging the commutator assembly 141 and the welding end face of the winding coil 142; the seventeenth station is a vacant station, and the seventeenth station is used for coordinating the different processing time required by each station; the eighteenth station, the nineteenth station and the twentieth station are UV lamp drying stations, the middle fixed disc 10 is respectively provided with a UV lamp drying mechanism 84 corresponding to the eighteenth station, the nineteenth station and the twentieth station, and the UV lamp drying mechanism 84 is used for quickly drying the UV glue; the twenty-first station is a polishing station, and a polishing mechanism 90 is used for polishing the outer circumferential surface of the motor shaft 1412 of the commutator assembly 141; the twenty-second station is a resistance test station, the middle fixed disc 10 is provided with a second test mechanism 72 corresponding to the position of the twenty-second station, and the second test mechanism 72 is used for measuring the resistance value of the adjacent welding spot, so as to detect whether the welding is qualified; the twenty-third station is a discharging station, and a discharging mechanism 100 at the discharging station is used for taking out the qualified hollow cup motor rotor 140 and rejecting the unqualified hollow cup motor rotor 140; the twenty-fourth station is a residual detection station, and an infrared sensor 120 is arranged at the twenty-fourth station, and the infrared sensor 120 is used for detecting whether there is a workpiece remaining on the positioning clamp 21 of the station.

[0048] The coil pressing mechanism 110 comprises a coil pressing cylinder 1101, a pressing block 1102 connected to the output end of the coil pressing cylinder 1101, a fixed sleeve 1103 fixed to the pressing block 1102, a lower pressing column 1104 slidingly arranged in the fixed sleeve 1103, a top screw 1106 fixedly arranged on the upper end of the fixed sleeve 1103 and an elastic piece D1105 arranged between the top screw 1106 and the lower pressing column 1104, wherein the lower pressing column 1104 is extended out of the fixed sleeve 1103 under the action of the elastic piece D1105, and the lower end surface of the lower pressing column 1104 is provided with an open groove.

[0049] In summary, the utility model has the following beneficial effects:

[0050] The hollow cup motor rotor multi-station automatic assembly machine can realize automatic feeding, automatic alignment, spot welding, resistance testing, glue dispensing, polishing and discharging, thereby effectively improving the processing efficiency of the hollow cup motor rotor 140.

[0051] The above merely describes preferred embodiments of the present application, and thus equivalent changes or modifications made in accordance with the structure, features and principles described in the patent application scope of the present application are included in the patent application scope of the present application.

Claims

1. A multi-station automatic assembly machine for hollow cup motor rotors, characterized in that: The application relates to a commutator assembly automatic processing device which comprises an intermediate fixed disc (10), a first rotating disc assembly (20), a feeding mechanism (30), a first alignment mechanism (40), a second alignment mechanism (50), a spot welding mechanism (60), a resistance testing mechanism (70), a dispensing mechanism (80), a polishing mechanism (90) and a discharging mechanism (100). The first rotating disc assembly (20) is rotatably arranged on the outer periphery of the intermediate fixed disc (10), a plurality of positioning clamps (21) are arranged on the first rotating disc assembly (20) in a circumferential direction, the feeding mechanism (30) is used for automatically feeding the commutator assembly (141) to the first positioning clamp (21), the first alignment mechanism (40) is used for aligning the commutator assembly (141) so that the commutator segment (1411) is located at a set position, the second alignment mechanism (50) is used for rotating the winding coil (142) relative to the commutator assembly (141) so that the pin (1421) is correspondingly arranged with the commutator segment (1411), the spot welding mechanism (60) is used for welding the pin (1421) and the corresponding commutator segment (1411) one by one, the resistance testing mechanism (70) is used for testing the resistance value of adjacent welding spots, the dispensing mechanism (80) is used for encapsulating the welding end face of the commutator assembly (141) and the winding coil (142), the polishing mechanism (90) is used for polishing the outer peripheral surface of the motor shaft (1412) of the commutator assembly (141), and the discharging mechanism (100) is used for taking out the processed hollow cup motor rotor (140).

2. The multi-station automatic assembly machine for hollow cup motor rotors of claim 1, wherein: The positioning clamp (21) comprises a fixed seat (211), a first positioning assembly (212) arranged on the fixed seat (211), a bearing seat (213) rotatably mounted on the fixed seat (211) and a clamping assembly (214) arranged on the bearing seat (213). The lower part of the bearing seat (213) is provided with a rotating driving part (2131), the bearing seat (213) is provided with a positioning column (2132), the positioning column (2132) is provided with a central passage for the motor shaft (1412) to pass through, the positioning column (2132) is provided with a supporting part matched with the inner diameter of the winding coil (142), the first positioning assembly (212) can move between a locking position and an unlocking position, the bearing seat (213) is locked on the fixed seat (211) through the first positioning assembly (212), and the clamping assembly (214) can move between a clamping position and an unlocking position, the winding coil (142) and the commutator assembly (141) are clamped and fixed through the clamping assembly (214).

3. The multi-station automatic assembly machine for hollow cup motor rotors of claim 2, wherein: The first rotating disc assembly (20) is provided with an assembly station between the first alignment mechanism (40) and the second alignment mechanism (50), the winding coil (142) is sleeved to the outer periphery of the commutator assembly (141) at the assembly station, the intermediate fixed disc (10) is provided with a first pushing piece (52) corresponding to the positions of the assembly station, the first alignment mechanism (40), the second alignment mechanism (50) and the discharging mechanism (100), and the first pushing piece (52) is used for driving the first clamping assembly (214) to switch from the clamping position to the unlocking position.

4. The multi-station automatic assembly machine for hollow cup motor rotors of claim 3, wherein: The intermediate fixed disc (10) is provided with an image recognition sensor (51) corresponding to the position of the second alignment mechanism (50), which recognizes whether the pin (1421) of the winding coil (142) and the commutator sheet (1411) of the commutator assembly (141) are aligned, thereby assisting the second alignment mechanism (50) to adjust the position of the pin (1421) of the winding coil (142).

5. The multi-station automatic assembly machine for hollow cup motor rotors of claim 2, wherein: The intermediate fixed disc (10) is provided with a second pushing piece (11) corresponding to the positions of the spot welding mechanism (60), the resistance test mechanism (70), the dispensing mechanism (80), and the polishing mechanism (90), respectively, which is used to drive the first positioning assembly (212) to switch from the locked position to the unlocked position. The lower end of the first rotating disc assembly (20) is provided with a rotating drive unit (150) corresponding to the positions of the spot welding mechanism (60), the resistance test mechanism (70), the dispensing mechanism (80), and the polishing mechanism (90), respectively. The rotating drive unit (150) includes a mounting seat (151), a drive motor (152) fixedly installed on the mounting seat (151), and a lifting assembly (153) for lifting the mounting seat (151). The drive motor (152) is provided with a joint portion (1521) matched with the rotating drive portion (2131). The drive motor (152) drives the first bearing seat (213) to rotate through the joint portion (1521).

6. The multi-station automatic assembly machine for hollow cup motor rotors of claim 1, wherein: The resistance test mechanism (70) includes a first test mechanism (71) and a second test mechanism (72). The first test mechanism (71) is arranged between the station of the spot welding mechanism (60) and the station of the dispensing mechanism (80). The second test mechanism (72) is arranged between the station of the polishing mechanism (90) and the station of the blanking mechanism (100). A waste removal mechanism (73) is arranged between the station of the first test mechanism (71) and the station of the dispensing mechanism (80).

7. A multi-station automatic assembly machine for hollow cup motor rotors according to claim 6, characterized in that: The dispensing mechanism (80) includes a point quick-drying glue mechanism (81) and a point UV glue mechanism (82). A hot air drying mechanism (83) and a UV lamp drying mechanism (84) are arranged between the dispensing mechanism (80) and the polishing mechanism (90). The hot air drying mechanism (83) is arranged between the point quick-drying glue mechanism (81) and the point UV glue mechanism (82). The UV lamp drying mechanism (84) is arranged between the station of the point UV glue mechanism (82) and the station of the polishing mechanism (90).

8. The multi-station automatic assembly machine for hollow cup motor rotors of claim 1, wherein: The feeding mechanism comprises a vibrating disc (31), a material shelf (32) and a material taking mechanism (33), the vibrating disc (31) is used for orderly and directional conveying of the commutator assembly (141); the material shelf (32) is fixedly arranged at the output end of the vibrating disc (31), the material shelf (32) is provided with a material taking cavity (321) with an open upper end and a feeding channel (322) communicating the material taking cavity (321) and the output end of the vibrating disc (31); the material taking mechanism (33) comprises an openable and closable clamping jaw assembly (331), a first moving assembly (332) for driving the clamping jaw assembly (331) to move vertically and reciprocally and a second moving assembly (333) for driving the clamping jaw assembly (331) to move longitudinally and reciprocally.

9. A multi-station automatic assembly machine for hollow cup motor rotors according to claim 8, characterized in that: The material shelf (32) is provided with a second positioning assembly (34), the second positioning assembly (34) can move reciprocally between a locking position and an unlocking position, the second positioning assembly (34) can position the commutator assembly (141) in the material taking cavity (321) at a set position when in the locking position, the clamping jaw assembly (331) is provided with an unlocking block (35) adjacent to one side of the second positioning assembly (34), when the clamping jaw assembly (331) moves downward to a clamping position, the unlocking block (35) drives the second positioning assembly (34) to move towards the unlocking position to unlock the locking of the commutator assembly (141) by the second positioning assembly (34), so that the clamping jaw assembly (331) can accurately clamp the commutator assembly (141).

10. The multi-station automatic assembly machine for hollow cup motor rotors of claim 1, wherein: The workpiece residual detection station is arranged between the work station of the feeding mechanism (30) and the work station of the discharging mechanism (100), the middle fixed disc (10) is provided with an infrared sensor (120) corresponding to the position of the workpiece residual detection station, whether there is a workpiece not taken down is detected by the infrared sensor (120).

Images