CN113231821A

CN113231821A - Permanent magnet direct current motor elastic piece feeding device, feeding method and motor assembling equipment

Info

Publication number: CN113231821A
Application number: CN202110663961.0A
Authority: CN
Inventors: 陈荣乾; 朱在修; 陈开文; 吴志兵
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-06-16
Filing date: 2021-06-16
Publication date: 2021-08-10

Abstract

The invention relates to the field of motor production, in particular to a permanent magnet direct current motor elastic piece feeding device, a feeding method and motor assembling equipment. A motor elastic piece feeding device comprises a chassis, a material belt feeding mechanism, an elastic piece cutting mechanism, an elastic piece carrying mechanism and a material belt collecting mechanism; the material belt feeding mechanism is arranged on the chassis, the elastic sheet cutting mechanism is positioned below the material belt feeding mechanism, the elastic sheet carrying mechanism corresponds to the discharge end of the material belt feeding mechanism, and the material belt collecting mechanism is connected with the lower end of the material belt feeding mechanism; the elastic piece conveying mechanism is used for conveying and feeding the elastic pieces, and the material belt collecting mechanism is used for cutting and collecting waste materials in the material belt; the elastic sheet carrying mechanism comprises a vertical seat, a horizontal cylinder, a vertical cylinder, a suction block, a centering column and a limiting sensor. The invention has the advantages of accurate connection, high carrying efficiency and high accuracy.

Description

Permanent magnet direct current motor elastic piece feeding device, feeding method and motor assembling equipment

Technical Field

The invention relates to the field of motor production, in particular to a permanent magnet direct current motor elastic piece feeding device, a feeding method and motor assembling equipment.

Background

The motor is widely applied to various portable electronic devices or appliances, such as recorders, VCD (video recorder), record players, electric massagers and various toys, and the permanent magnet direct current motor is a direct current motor which uses a permanent magnet to establish a magnetic field. The structure of the permanent magnet direct current motor comprises a general stator and a rotor, wherein the stator comprises a shell, magnetic shoes, a magnetic shoe frame, a riveting piece and the like. In the prior art, the assembly of the stator of the dc permanent magnet motor is generally completed manually, and as shown in fig. 22, the motor rotor is composed of a casing (100), a mandrel (200), a spring plate (300) and a rotor (400). The mandrel (200) is fixed on the machine shell (100), the elastic sheet (300) is sleeved on the mandrel (200), and the rotor (400) is arranged on the elastic sheet (300).

The Chinese invention patent application (publication number: CN109802532A, published: 2019.05.24) discloses a direct-current permanent magnet motor stator assembling machine, which comprises a frame and also comprises: the gluing device is used for gluing the shell; the first assembling device is used for realizing the installation of the magnetic shoe on the magnetic shoe rack; the second assembling device is used for realizing the assembly of the magnetic tile frame and the shell; a magnetizing device; the detection device is used for realizing the detection of the residual magnetic strength of the magnetic shoe; a riveting device; an output device; and a conveying device.

The prior art has the following defects: 1. the elastic sheet has a fine structure, and accurate feeding is difficult after cutting; 2. the installation of the mandrel into the shell is not accurate; 3. the mandrel has a small structure, is difficult to clamp and carry, and has low feeding accuracy; 4. the motor has more assembly processes, low processing efficiency and slow process connection; 5. the cutting quality and efficiency of the elastic sheet are low; 6. the operation of cleaning and washing the rotor is complex, and the air-drying process is needed to be carried out for a plurality of flows; 7. the rotor can not be cleaned and loaded after being taken out from the material tray.

Disclosure of Invention

The invention aims to provide a motor elastic sheet feeding device and a feeding method thereof, which are accurate in connection, high in carrying efficiency and high in accuracy, aiming at the problems that an elastic sheet in the prior art is small in structure and difficult to accurately feed after being cut.

For the purpose of the invention, the following technical scheme is adopted for realizing the purpose:

a permanent magnet direct current motor elastic piece feeding device comprises a chassis, a material belt feeding mechanism, an elastic piece cutting mechanism, an elastic piece carrying mechanism and a material belt collecting mechanism; the material belt feeding mechanism is arranged on the chassis, the elastic sheet cutting mechanism is positioned below the material belt feeding mechanism, the elastic sheet carrying mechanism corresponds to the discharge end of the material belt feeding mechanism, and the material belt collecting mechanism is connected with the lower end of the material belt feeding mechanism; the elastic piece conveying mechanism is used for conveying and feeding the elastic pieces, and the material belt collecting mechanism is used for cutting and collecting waste materials in the material belt; the elastic piece carrying mechanism comprises a vertical seat, a horizontal cylinder, a vertical cylinder, a suction block, a centering column and a limiting sensor; the setting of founding the seat on the chassis, horizontal cylinder horizontal installation is on founding the seat, and vertical cylinder removes to be connected on founding the seat, and horizontal cylinder's flexible end is connected with vertical cylinder, absorbs the piece and installs the flexible end at vertical cylinder, and the lower extreme cross-section of absorbing the piece is the anchor ring, and the anchor ring is provided with the suction hole, and centering post elastic connection is in the center of absorbing the piece, and the lower extreme salient of centering post is in absorbing terminal surface under the piece, centering post and the centre bore phase-match of shell fragment.

Preferably, the material belt feeding mechanism comprises an overhead table, a middle rail, an auxiliary pressing wheel, a driving pressing wheel, a stepping motor, a butting block and an arc-shaped material rail; the device comprises a chassis, an overhead table, a middle track, a material belt, an auxiliary pressing wheel, a driving pressing wheel, a stepping motor, an auxiliary pressing wheel, a middle track, a material belt, a driving pressing wheel, a pressing wheel and a pressing wheel, wherein the overhead table is arranged on the chassis; the arc-shaped material rail is connected with the discharge end of the middle rail.

Preferably, the end part of the middle track is provided with a vertical through hole, the abutting block is arranged above the middle track, the end part of the abutting block is provided with an arc-shaped cutting edge, and the arc-shaped cutting edge is matched with the outer contour of the elastic sheet.

Preferably, the elastic piece cutting mechanism comprises a mounting seat, a guide pillar, a lifting seat, a roller, a primary air cylinder, a secondary air cylinder, a driving inclined plate, a cutting block and a pressing block, wherein a first chute and a second chute are formed in the mounting seat; the guide post is arranged on the mounting seat, and the lifting seat is movably connected to the guide post through a linear bearing; the roller is rotatably connected to the lower end of the lifting seat and is matched with the upper end face of the driving inclined plate; the cutting block and the pressing block are both connected on the lifting seat, the cutting block is fixedly connected with the lifting seat, and the pressing block is connected with the lifting seat through a spring with pressure; the upper end of the pressing block is in a T shape, the upper end of the pressing block is matched with the material belt, the upper end of the cutting block is cylindrical, and a fine hole is formed in the middle of the cylinder.

Preferably, the lifting seat is provided with a sharp needle which is matched with the round hole on the material belt; the driving inclined plate is provided with a reset plane, a middle plane and a high plane, the three planes are connected through inclined planes, and the cutting block and the pressing block are lifted together in the process that the roller moves from the reset plane to the middle plane, so that the material belt is clamped; and in the process that the roller moves from the middle plane to the high plane, the pressing block is fixed, the cutting block continuously rises, and the elastic sheet is cut.

Preferably, the material belt collecting mechanism comprises a feeding seat, a cutting knife, a cutting cylinder, a pin shaft and a discharging barrel, the cutting knife is matched in a round hole in the feeding seat, a swing rod part is arranged at the other end of the cutting knife, an elongated groove is formed in the swing rod part, the cutting cylinder is horizontally fixed, and a telescopic end of the cutting cylinder is matched with the elongated groove through the pin shaft to form a groove pair.

Preferably, the feeding seat is provided with a vertical flat feeding hole, the cutting knife is cylindrical, one end of the cutting knife is provided with a cutting opening, and the cutting opening is in a reducing opening shape.

A permanent magnet direct current motor elastic sheet feeding method is characterized in that a stepping motor drives a driving pressing wheel to rotate to achieve feeding of a material belt, a secondary air cylinder drives a driving inclined plate to move to drive a lifting seat to move upwards step by step, a pressing block presses the material belt, a suction block of an elastic sheet carrying mechanism sucks an elastic sheet from the upper side, a cutting block continues to rise, and the elastic sheet is cut off; the shell fragment transport mechanism realizes the transport with the shell fragment, and unnecessary material area gets into to take to cut off to collect in the material collects the mechanism.

A permanent magnet direct current motor assembling device comprises a rack, a jig rotating device, a mandrel feeding device, a shell feeding device, a mandrel riveting device, a shell overturning device, a motor elastic sheet feeding device, a mandrel oiling device, a rotor feeding device and a product discharging device, wherein the jig rotating device, the mandrel feeding device, the shell uploading device, the core riveting device, the shell overturning device, the motor elastic sheet feeding device, the mandrel oiling device, the rotor feeding device and the product discharging device are installed on the rack; a plurality of stations are arranged on the circumference of the jig rotating device and respectively comprise a mandrel feeding station, a shell feeding station, a riveting station, a turning station, a spring plate feeding station, an oiling station, a rotor feeding station and a discharging station, and the mandrel feeding device, the shell feeding device, the mandrel riveting device, the shell turning device, the motor spring plate feeding device, the mandrel oiling device, the rotor feeding device and the product discharging device sequentially correspond to one circle of the jig rotating device along the machining direction; the motor elastic piece feeding device adopts the technical scheme.

Preferably, the jig rotating device is used for carrying the assembled parts to realize circumferential rotation, the mandrel feeding device and the machine shell feeding device are used for realizing feeding of the mandrel and the machine shell, and the mandrel riveting device is used for pressing the mandrel in the machine shell; the shell turnover device is used for turning over the shell, the motor elastic piece feeding device is used for assembling the elastic pieces into the shell, the mandrel oiling device is used for coating lubricating oil in the middle, the rotor feeding device is used for cleaning the rotor and assembling the rotor onto a mandrel, and the product discharging device is used for discharging.

The motor elastic piece feeding device and the feeding method adopting the technical scheme have the advantages that: the elastic piece is cut correspondingly by arranging the elastic piece carrying mechanism and the elastic piece cutting mechanism, the elastic piece is clamped by the cutting block and the suction block, the specific position is determined, the position precision after cutting is ensured, the positioning is realized by inserting the centering column into the center of the elastic piece, the suction is realized by the suction block, and the carrying reliability is improved; the material belt collecting mechanism utilizes the lever principle to realize cutting of redundant material belts, is convenient to collect, can realize cutting once, has no idle return stroke, and is high in cutting efficiency.

The motor equipment adopting the technical scheme has the advantages that:

1. the jig rotating device is provided with the forward mounting jig and the reverse mounting jig, so that on one hand, the assembly of the mandrel and the shell can be better completed by the reverse mounting jig, the mandrel is fixed, and the success rate of the assembly is improved by the way of assembling the shell, and on the other hand, the subsequent assembly parts can be better placed into the shell by upward arranging the forward mounting jig on the inner space of the shell, so that the assembly efficiency is improved; through setting up clamping assembly, improve the straightness and the rigidity of dabber, the follow-up equipment of being convenient for.

2. The mandrel feeding device is used for receiving a single mandrel by arranging the receiving block, the mandrel is arranged in the receiving through hole to realize position fixing, the mandrel can be conveyed by moving the receiving block, and the lower end of the mandrel controls material discharge through the stop block, so that convenience and high efficiency are realized; in the conveying process, the upper end of the receiving block is tightly attached to the blanking rail, and the lower end of the receiving block is tightly attached to the guide seat, so that the accuracy of the mandrel in the conveying process is ensured, and the position dislocation is prevented; the conveyed core shaft is placed in the guide seat for positioning and then pressed downwards, so that the accuracy in the core shaft assembling process is improved; the receiving block moves in a small range and a large range through the micro-motion cylinder and the carrying cylinder, the small range is separated in a staggered mode, large-stroke carrying is achieved, and carrying efficiency is improved.

3. The elastic piece cutting mechanism drives the inclined plate to be provided with a middle plane and a high plane which are used for pressing and cutting respectively, and cutting is finished through two steps, so that the cutting quality is improved; adopt two cylinders control drive swash plate of one-level cylinder and second grade cylinder to remove, compare the multistage driven mode of a cylinder, the accurate control stroke is easier, and flexible control is more swift more sensitive, improves cutting speed.

4. The motor elastic sheet feeding device cuts by arranging the elastic sheet carrying mechanism and the elastic sheet cutting mechanism correspondingly, the elastic sheet is clamped by the cutting block and the suction block, the specific position is determined, the position precision after cutting is ensured, the positioning is realized by inserting the centering column into the center of the elastic sheet, the suction is realized by the suction block, and the carrying reliability is improved; the material belt collecting mechanism utilizes the lever principle to realize cutting of redundant material belts, is convenient to collect, can realize cutting once, has no idle return stroke, and is high in cutting efficiency.

5. The clean subassembly of rotor is brought through setting up the glue and is glued debris such as dust, glues the collection of the dust of being more convenient for of the mode of removing, simple structure, and the sticky tape can realize the automatic feeding that replaces, realizes replacing not having sticky tape position, improves the dust and glues the reliable degree that removes to the heavy groove of bar that the upper end of clean seat set up not only is suitable for the cleanness of rotor middle thick portion, also can clean both ends axle side, and clean degree is higher.

6. The rotor feeding device carries the materials by arranging a first rotor carrying assembly and a second rotor carrying assembly in two different carrying modes, the first rotor carrying assembly adopts a magnetic suction mode to take the materials, and the magnetic suction mode is simple and efficient; the second rotor carrying assembly adopts a mode of clamping a central hole of the rotor, is suitable for the horizontal rotation of the rotor and is convenient for subsequent cleaning; the transfer assembly is arranged for transferring, so that the first rotor carrying assembly is connected with the second rotor carrying assembly, and the two carrying assemblies are adopted to improve the feeding efficiency of the rotors; through setting up rotor upset subassembly and linking up second rotor handling subassembly, clip the one end of rotor, realize the upset, be convenient for realize the rotor material loading from the top.

Drawings

FIG. 1 is a flow chart of the present invention.

Fig. 2 is an exploded view of the present invention.

Fig. 3 is an exploded view of the jig rotating device.

Fig. 4 is a structural diagram of a forward mounting jig and a reverse mounting jig.

Fig. 5 is a structural view of the mandrel feeding device.

Fig. 6 is a structural view of the casing feeding device.

Fig. 7 is a structural view of the mandrel caulking apparatus.

Fig. 8 is a structural view of the cabinet turnover device.

Fig. 9 is a structural view of the motor tab feeding device.

Fig. 10 is a structural diagram of the tape feeding mechanism.

Fig. 11 is a structural view of the spring piece cutting mechanism.

Fig. 12 is a structural view of the spring piece conveying mechanism.

Fig. 13 is a structural view of the tape collecting mechanism.

Fig. 14 is a schematic diagram of the cutting of the material tape.

Fig. 15 is a structural view of the rotor charging device.

FIG. 16 is a block diagram of a rotor feed assembly and a first rotor handling assembly.

Fig. 17 is a structural view of the relay assembly.

Fig. 18 is a structural view of the second rotor handling assembly.

Figure 19 is a block diagram of a rotor cleaning assembly.

Figure 20 is a detail view of the rotor cleaning assembly.

Fig. 21 is a structural view of the rotor flipping unit.

Fig. 22 is a structural view of a rotor of the motor.

Detailed Description

As shown in fig. 2, a permanent magnet dc motor assembly apparatus includes a frame, and a jig rotating device 1, a mandrel feeding device 2, a case feeding device 3, a mandrel riveting device 4, a case turning device 5, a motor elastic sheet feeding device 6, a mandrel oiling device 7, a rotor feeding device 8, and a product blanking device 9 mounted on the frame; the circumference of the jig rotating device 1 is provided with a plurality of stations which are respectively a mandrel feeding station, a casing feeding station, a riveting station, a turning station, a spring plate feeding station, an oiling station, a rotor feeding station and a discharging station, wherein the mandrel feeding device 2, the casing feeding device 3, the mandrel riveting device 4, the casing turning device 5, the motor spring plate feeding device 6, the mandrel oiling device 7, the rotor feeding device 8 and the product discharging device 9 sequentially correspond to one circle of the jig rotating device 1 along the machining direction.

The jig rotating device 1 is used for carrying and moving the assembled parts to realize circumferential rotation, the mandrel feeding device 2 and the machine shell feeding device 3 are used for realizing mandrel and machine shell feeding, and the mandrel riveting device 4 is used for pressing the mandrel in the machine shell; casing turning device 5 is arranged in realizing the upset with the casing, and motor shell fragment loading attachment 6 is arranged in assembling the shell fragment to the casing, and dabber filling device 7 is arranged in scribbling lubricating oil to the centre, and rotor loading attachment 8 is used for wasing the rotor to assemble the dabber on, product unloader 9 is used for carrying out the unloading. The motor spring piece feeding device 6 is a permanent magnet direct current motor spring piece feeding device.

As shown in fig. 3 and 4, the jig rotating device 1 includes a rotating disc 11, a fixed disc 12, a rotating disc 13, a clamping assembly 14, an air blowing assembly 16, a forward mounting jig 17 and a reverse mounting jig 18; the rotary table 11 is arranged on the frame, the upper end of the rotary table 11 is provided with a fixed shaft and a rotating shaft, the center of the fixed disc 12 is fixed on the fixed shaft, the rotating disc 13 is arranged on the rotating shaft, and the fixed disc 12 is positioned above the rotating disc 13; the forward mounting jig 17 and the reverse mounting jig 18 are arranged on the clamping assembly 14 and are arranged on one circle of the rotating disc 13, one forward mounting jig 17 and one reverse mounting jig 18 form a group, and one group corresponds to one station; the clamping assemblies 14 are fixed on the disc 12, two groups of clamping assemblies 14 are arranged, and the clamping assemblies 14 respectively correspond to the positive mounting jigs 17 at the elastic sheet feeding station 102 and the rotor feeding station 103; the air blowing assembly 16 is arranged on the fixed disc 12, and the air blowing assembly 16 corresponds to the reverse installation jig 18 at the elastic piece feeding station 102.

The clamping assembly 14 comprises a lateral movement cylinder 141, a moving plate 142, a clamping cylinder 143 and clamping fingers 144, the moving plate 142 is movably connected to the fixed disc 12 through a sliding rail, the lateral movement cylinder 141 is fixedly installed on the disc 12, the telescopic end of the lateral movement cylinder 141 is connected with the moving plate 142, the clamping cylinder 143 is installed on the moving plate 142, the clamping fingers 144 are installed at two moving ends of the clamping cylinder 143, and the inner side of the clamping fingers 144 is matched with the core shaft.

The blowing assembly 16 comprises a lifting cylinder 161, a vertical guide seat 162, a lifting block 163 and an air pipe 164, wherein the vertical guide seat 162 is fixed on the fixed disc 12, the lifting cylinder 161 is installed on the vertical guide seat 162, a guide post is arranged on the vertical guide seat 162, the lifting block 163 is movably matched on the guide post, the telescopic end of the lifting cylinder 161 is connected with the lifting block 163, the air pipe 164 is connected on the lifting block 163, and the lower end of the air pipe 164 is opposite to the reverse installation jig 18.

The normal installation jig 17 comprises a fixed jig seat 171, an annular block 172 and a positioning nail 173, wherein a circular hole is formed in the annular block 172, the annular block 172 is installed on the fixed jig seat 171, the positioning nail 173 is arranged on the fixed jig seat 171, the positioning nail 173 protrudes out of the surface of the fixed jig seat 171, and the fixed jig seat 171 is installed on the rotating disc 13; the side surface of the fixing jig seat 171 is notched. The reverse installation jig 18 comprises a lifting jig seat 181 and a positioning column 182; the lifting jig base 181 is movably connected to the rotating disc 13, two positioning columns 182 are arranged, the positioning columns 182 are installed at the side ends of the lifting jig base 181, and the positioning columns 182 are used for blocking the shell from rotating; the upper end of the lifting jig seat 181 is provided with a counter bore 183, the size of the counter bore 183 is matched with the size of the mandrel, and the upper end of the lifting jig seat 181 is further provided with a ring groove 184.

When the jig rotating device 1 works, the turntable 11 drives the rotating disc 13 to realize intermittent motion, firstly, a mandrel and a shell are placed on the reverse-installation jig 18 to be conveyed, assembly is realized, the assembled mandrel and the shell are placed in the forward-installation jig 17 in a turnover mode to be conveyed for subsequent processing, the mandrel is clamped by the clamping assembly 14 at the elastic sheet feeding station 102 and the rotor feeding station 103, and the shell is dedusted by the blowing assembly 16 in the reverse-installation jig 18 at the elastic sheet feeding station 102.

The jig rotating device 1 solves the problem that the mandrel is not accurately assembled into the casing, and by arranging the forward assembling jig 17 and the reverse assembling jig 18, on one hand, the assembling of the mandrel and the casing can be better completed by using the reverse assembling jig 18, the mandrel is fixed, the casing is assembled in a mode, the success rate of the assembling is improved, on the other hand, the internal space of the casing is upward by using the forward assembling jig 17, the subsequent assembly parts can be better placed into the casing, and the assembling efficiency is improved; by providing the clamping assembly 14, the straightness and rigidity of the mandrel are improved, facilitating subsequent assembly.

As shown in fig. 5, the mandrel feeding device 2 includes a support 21, a rail falling assembly 22, a receiving assembly 23, a carrying cylinder 24 and a pressing assembly 25, the rail falling assembly 22 is mounted on the support 21, the receiving assembly 23 is movably connected to the support 21 through a slide rail, the carrying cylinder 24 is horizontally mounted on the support 21, a telescopic end of the carrying cylinder 24 is connected to the receiving assembly 23, the pressing assembly 25 corresponds to a feeding station, and the receiving assembly 23 is connected to the rail falling assembly 22 and the pressing assembly 25; the falling rail assembly 22 comprises a falling rail 221, a side connecting seat 222, a pressing block 223 and a pressing cylinder 224; the blanking rail 221 is provided with a vertical pore, a mandrel passes through the pore, the upper end of the blanking rail 221 is provided with an optical fiber sensor 225, the optical fiber sensor 225 corresponds to the pore, and the upper end of the blanking rail 221 is connected with a vibration feeder; side connecting seat 222 installs in the below of blanking rail 221, and blanking rail 221's lower extreme side is opened has the rectangular hole, and the rectangular hole is corresponding with the pore, and compact heap 223 removes the cooperation in the rectangular hole, and compress tightly cylinder 224 and fix on side connecting seat 222, and the flexible end that compresses tightly cylinder 224 is connected with compact heap 223, and compact heap 223 is corresponding with the pore, presss from both sides the dabber in the pore tightly.

The receiving assembly 23 comprises a primary moving plate 231, a receiving block 232, a micro-motion cylinder 233, a stop block 234, a blocking cylinder 235 and a secondary moving plate 236; the first-stage moving plate 231 is connected to the support 21 through a sliding rail, and the first-stage moving plate 231 is connected with the telescopic end of the carrying cylinder 24; the secondary moving plate 236 is connected to the primary moving plate 231 through a sliding rail, the secondary moving plate 236 is connected with the telescopic end of the micro-moving cylinder 233, the micro-moving cylinder 233 is mounted on the primary moving plate 231, the receiving block 232 and the blocking cylinder 235 are mounted on the secondary moving plate 236, a vertical receiving through hole is formed in the receiving block 232, a notch 2321 is further formed in the lower end of the receiving block 232, the notch 2321 is used for enabling an optical path of the optical fiber sensor 2322 to pass through, and the optical fiber sensor 2322 is connected to the support 21; the receiving block 232 is provided with a horizontal through groove, the stop 234 is movably matched in the through groove, the stop 234 is connected with the telescopic end of the blocking cylinder 235, and the stop 234 is positioned at the lower end of the receiving block 232 and used for blocking the falling of the mandrel.

The pressing assembly 25 comprises a pressing cylinder 251, a sliding seat 252, a sliding sleeve 253, a guide seat 254, a thimble 255 and a jacking cylinder 256; the pushing cylinder 251 is arranged on the sliding base 252, the sliding sleeve 253 is connected to the sliding base 252, the sliding sleeve 253 is connected with the telescopic end of the pushing cylinder 251, the pushing cylinder 256 is arranged at the upper end of the sliding sleeve 253, the middle part of the sliding sleeve 253 is provided with a guide seat 2531, the thimble 255 is matched in the guide seat 2531, and the thimble 255 is connected with the telescopic end of the pushing cylinder 256; the guide holder 254 is installed at the lower extreme of sliding sleeve 253, and the guide holder 254 middle part is provided with the round hole, the distance in the middle of guide holder 254 and the guide holder 2531 and the high phase-match of piece 232 of catching.

When the mandrel feeding device 2 works, a mandrel falls from the blanking rail 221, the pressing block 223 is loosened and falls into the receiving block 232, the pressing block 223 presses the mandrel above, then the micro-motion cylinder 233 drives the receiving block 232 to move laterally, and then the carrying cylinder 24 moves the receiving assembly 23 to the pressing assembly 25; the blocking cylinder 235 drives the stop block 234 to leave, so that the mandrel falls into the guide seat 254, the receiving assembly 23 is withdrawn, the ejector pin 255 descends, the mandrel is ejected, and feeding is achieved.

The mandrel feeding device 2 solves the problems that a mandrel is small in structure, difficult to clamp and carry and low in feeding accuracy, a receiving block 232 is arranged for receiving a single mandrel, the mandrel is arranged in a receiving through hole to achieve position fixing, the mandrel can be carried by moving the receiving block 232, the lower end of the mandrel controls discharging through a stop block 234, and convenience and high efficiency are achieved; in the conveying process, the upper end of the receiving block 232 is tightly attached to the blanking rail 221, and the lower end of the receiving block 232 is tightly attached to the guide seat 254, so that the accuracy of the mandrel in the conveying process is guaranteed, and the position dislocation is prevented; the conveyed mandrel is placed in the guide seat 254 for positioning and then pressed downwards, so that the accuracy in the mandrel assembling process is improved; the receiving block 232 moves slightly and greatly through the micro-motion cylinder 233 and the carrying cylinder 24, dislocation separation is achieved slightly, large-stroke carrying is achieved greatly, and carrying efficiency is improved.

As shown in fig. 6, the casing loading device 3 includes a casing vibrating-out mechanism 31 and a casing clamping and transporting mechanism 32, the casing clamping and transporting mechanism 32 corresponds to the discharging end of the casing vibrating-out mechanism 31, and the casing clamping and transporting mechanism 32 is used for transporting and loading the casing.

As shown in fig. 7, the mandrel riveting device 4 includes a riveting support 41, a riveting cylinder 42, a support frame 43 and a riveting base 44; riveting cylinder 42 is installed on riveting support 41, and riveting seat 44 is installed at the flexible end of riveting cylinder 42, and support frame 43 sets up in the frame, and support frame 43 and riveting seat 44 are in same vertical direction.

As shown in fig. 8, the machine shell turning device 5 includes a turning base 51, a two-degree-of-freedom moving mechanism 52, a clamping and rotating cylinder 53, a clamping plate 54 and an air suction gun 55, wherein the two-degree-of-freedom moving mechanism 52 is arranged on the turning base 51, the clamping and rotating cylinder 53 is arranged at the motion end of the two-degree-of-freedom moving mechanism 52, the clamping plate 54 is arranged at the two moving ends of the clamping and rotating cylinder 53, the motion end of the clamping and rotating cylinder 53 rotates and can be clamped, the air suction gun 55 is arranged at the motion end of the two-degree-of-freedom moving mechanism 52, and the lower end of the air suction.

As shown in fig. 9-14, a permanent magnet dc motor spring loading device includes a chassis 61, a material belt loading mechanism 62, a spring piece cutting mechanism 63, a spring piece carrying mechanism 64, and a material belt collecting mechanism 65; the material belt feeding mechanism 62 is installed on the chassis 61, the elastic sheet cutting mechanism 63 is located below the material belt feeding mechanism 62, the elastic sheet carrying mechanism 64 corresponds to the discharge end of the material belt feeding mechanism 62, and the material belt collecting mechanism 65 is connected with the lower end of the material belt feeding mechanism 62. The material belt feeding mechanism 62 is used for driving the material belt of the elastic sheet to realize feeding, the elastic sheet cutting mechanism 63 is used for separating the elastic sheet from the material belt, the elastic sheet carrying mechanism 64 is used for carrying and feeding the elastic sheet, and the material belt collecting mechanism 65 is used for cutting and collecting the material belt waste.

The material belt feeding mechanism 62 comprises an overhead table 621, a middle track 622, an auxiliary pressing wheel 623, a driving pressing wheel 624, a stepping motor 625, a resisting block 626 and an arc-shaped material rail 627; an overhead table 621 is installed on the chassis 61, a middle track 622 is arranged in the middle of the overhead table 621, a material belt is arranged in the middle track 622, an auxiliary pressure wheel 623 and a driving pressure wheel 624 are connected to the overhead table 621, the auxiliary pressure wheel 623 and the driving pressure wheel 624 correspond to the material belt in the middle track 622, the driving pressure wheel 624 is installed at the rotating end of a stepping motor 625, salient points are arranged on the circumferential edges of the auxiliary pressure wheel 623 and the driving pressure wheel 624, and the salient points correspond to round holes in the material belt; the end part of the middle rail 622 is provided with a vertical through hole, the resisting block 626 is arranged above the middle rail 622, the end part of the resisting block 626 is provided with an arc-shaped cutting edge, and the arc-shaped cutting edge is matched with the outer contour of the elastic sheet; the arc-shaped material rail 627 is connected with the discharge end of the middle rail 622.

The elastic piece cutting mechanism 63 comprises a mounting seat 631, a guide post 632, a lifting seat 633, a roller 634, a primary cylinder 636, a secondary cylinder 637, a driving inclined plate 638, a cutting block 639 and a pressing block 630, wherein the mounting seat 631 is provided with a first sliding groove 6311 and a second sliding groove 6312, the secondary cylinder 637 is movably connected in the first sliding groove 6311, the primary cylinder 636 is mounted on the mounting seat 631, the telescopic end of the primary cylinder 636 is connected with the base of the secondary cylinder 637, the driving inclined plate 638 is movably connected in the second sliding groove 6312, and the driving inclined plate 638 is connected with the telescopic end of the secondary cylinder 637; the guide post 632 is arranged on the mounting seat 631, and the lifting seat 633 is movably connected to the guide post 632 through a linear bearing; the roller 634 is rotatably connected to the lower end of the lifting seat 633, and the roller 634 is matched with the upper end surface of the driving inclined plate 638; the cutting block 639 and the pressing block 630 are both connected to the lifting seat 633, the cutting block 639 is fixedly connected with the lifting seat 633, and the pressing block 630 is connected with the lifting seat 633 through a pressed spring; briquetting 630 upper end become the T font, briquetting 630 upper end and material area phase-match, the upper end that cuts piece 639 is cylindrical, the cylinder middle part is provided with the pore. The lifting seat 633 is provided with a sharp needle 6331, and the sharp needle 6331 is matched with the round hole in the material belt. The driving inclined plate 638 is provided with a reset plane, a middle plane and a high plane, the three planes are connected through inclined planes, and the roller 634 moves from the reset plane to the middle plane to lift the cutting block 639 and the pressing block 630 together, so as to clamp the material belt; in the process that the roller 634 moves from the middle plane to the high plane, the pressing block 630 is not moved, the cutting block 639 continues to ascend, and the elastic sheet is cut.

When the elastic piece cutting mechanism 63 works, firstly, the primary air cylinder 636 extends to drive the secondary air cylinder 637 to reach a designated position, the inclined plate 638 is driven to enter, the roller 634 moves from a reset plane to a middle plane, and the pressing block 630 presses the material belt by the rising height of the lifting seat 633; then secondary cylinder 637 drives drive swash plate 638 and continues to stretch out, continues ejecting with cutting block 639, separates the shell fragment from the material area, and then primary cylinder 636 contracts, makes drive swash plate 638 withdraw from, and lift seat 633 resets under the action of gravity.

The elastic piece cutting mechanism 63 solves the problems of low elastic piece cutting quality and low cutting efficiency, the middle plane and the high plane are arranged on the driving inclined plate 638 and are used for pressing and cutting respectively, the cutting is completed through two steps, and the cutting quality is improved; adopt two cylinders control drive swash plate 638 of one-level cylinder 636 and second grade cylinder 637 to remove, compare the multistage driven mode of a cylinder, the accurate control stroke is easier, and flexible control is more swift more sensitive, improves cutting speed.

The shrapnel carrying mechanism 64 comprises a vertical seat 641, a horizontal air cylinder 642, a vertical air cylinder 643, a suction block 644, a centering column 645 and a limit sensor 646; the vertical base 641 is arranged on the base plate 61, the horizontal cylinder 642 is horizontally arranged on the vertical base 641, the vertical cylinder 643 is movably connected on the vertical base 641, the telescopic end of the horizontal cylinder 642 is connected with the vertical cylinder 643, the suction block 644 is arranged at the telescopic end of the vertical cylinder 643, the cross section of the lower end of the suction block 644 is a ring surface, the ring surface is provided with a suction hole, the centering column 645 is elastically connected to the center of the suction block 644, the lower end of the centering column 645 protrudes out of the lower end surface of the suction block 644, and the centering column 645 is matched with the center hole of the elastic sheet.

The material belt collecting mechanism 65 comprises a feeding seat 651, a cutting knife 652, a cutting cylinder 653, a pin shaft 654 and a blanking barrel 655, wherein a vertical flat feeding hole is formed in the feeding seat 651, the cutting knife 652 is cylindrical, a cutting opening 6521 is formed in one end of the cutting knife 652, the cutting opening 6521 is in a reducing opening shape, the cutting knife 652 is matched in a round hole 6511 in the feeding seat 651, a swing rod portion 6522 is arranged at the other end of the cutting knife 652, a long groove is formed in the swing rod portion 6522, the cutting cylinder 653 is horizontally fixed, and the telescopic end of the cutting cylinder 653 is matched with the long groove through the pin shaft 654 to form a groove.

When the permanent magnet direct current motor elastic sheet feeding device works, the stepping motor 625 drives the driving pressing wheel 624 to rotate to realize material belt feeding, the secondary cylinder 637 drives the driving inclined plate 638 to move to drive the lifting seat 633 to move upwards step by step, firstly, the pressing block 630 presses the material belt, then, the sucking block 644 of the elastic sheet carrying mechanism 64 sucks the elastic sheet from above, the cutting block 639 continues to ascend, and the elastic sheet is cut off; the elastic piece carrying mechanism 64 carries the elastic pieces, and redundant material belts enter the material belt collecting mechanism 65 to be cut off and collected.

A permanent magnet direct current motor shell fragment loading attachment has solved the shell fragment structure is tiny, the problem difficult to feed accurately after cutting, cut through setting up shell fragment transport mechanism 64 and shell fragment to cut mechanism 63 correspondingly, adopt cut block 639 and absorb the block 644 and grasp the shell fragment first, confirm the concrete position, guarantee the position accuracy after cutting, and realize the location through inserting in the centre of the shell fragment through the centering column 645, and absorb the block 644 and realize absorbing, improve the reliability of carrying; the material belt collecting mechanism 65 utilizes the lever principle to realize the cutting of redundant material belts, is convenient for collecting, can realize the cutting once, has no idle return stroke, and has high cutting efficiency.

As shown in fig. 15-21, the rotor feeding device 8 includes a rotor feeding assembly 81, a first rotor handling assembly 82, a second rotor handling assembly 83, a rotor cleaning assembly 84, a rotor turning assembly 85 and a rotor turning assembly 86, wherein the first rotor handling assembly 82 is connected with the rotor feeding assembly 81 and the rotor turning assembly 86, the second rotor handling assembly 83 is connected with the rotor turning assembly 86, the rotor cleaning assembly 84 and the rotor turning assembly 85, the rotor turning assembly 86 is installed at the side of the rotor cleaning assembly 84, and the rotor turning assembly 85 is used for final rotor feeding; the first rotor handling assembly 82 is used for handling the rotor to the rotor cleaning assembly 84, the second rotor handling assembly 83 is used for clamping the rotor to be processed at the rotor cleaning assembly 84, and the rotor overturning assembly 85 is used for overturning and loading the rotor.

The rotor feeding assembly 81 comprises a full disc track 811, an empty disc track 812, a positioning channel 813, a pushing mechanism 814, a disc taking mechanism 815 and a disc stacking mechanism 816; the positioning channel 813 is positioned at the lower ends of the full tray track 811 and the empty tray track 812, the middle part of the positioning channel 813 is a material taking station, the pushing mechanism 814 corresponds to the positioning channel 813, the pushing mechanism 814 is connected with the full tray track 811 and the empty tray track 812, and the pushing mechanism 814 is used for horizontally pushing the tray with the rotor; the tray taking mechanism 815 is located below the full tray track 811, the tray stacking mechanism 816 is located below the empty tray track 812, the tray taking mechanism 815 is used for taking out a tray filled with a rotor from the lowest end of the full tray track 811 and placing the tray at one end of the positioning channel 813, and the tray stacking mechanism 816 is used for stacking empty trays at the empty tray track 812.

First rotor transport subassembly 82 include sideslip module 821, indulge and move cylinder 822, locating piece 823 and magnet 824, indulge and move cylinder 822 and set up the motion end at sideslip module 821, sideslip module 821 passes through synchronous belt drive, and locating piece 823 is installed and is being indulged the lower extreme that moves cylinder 822, locating piece 823 lower extreme be provided with V-arrangement recess, the middle part of locating piece 823 is provided with scarce groove 8231, magnet 824 sets up inside locating piece 823, magnet 824 corresponds V-arrangement recess.

The transfer assembly 86 comprises a folding seat 861, a limiting cylinder 862, a barrier strip 863 and a positioning seat 864; the positioning seat 864 is installed on the folding seat 861, a V-shaped groove is arranged on the positioning seat 864, the rotor is placed in the V-shaped groove, the limit cylinder 862 is installed on the folding seat 861, the barrier strip 863 is installed at the telescopic end of the limit cylinder 862, the barrier strip 863 is located above the positioning seat 864, and the barrier strip 863 corresponds to the notch 8231 in the positioning block 823.

The second rotor carrying assembly 83 comprises a portal frame 831, a transverse cylinder 832, a middle seat 833, a longitudinal cylinder 834, a finger cylinder 835 and a clamping block 836, the transverse cylinder 832 is horizontally installed on the portal frame 831, the middle seat 833 is connected to the portal frame 831 through a sliding rail, the longitudinal cylinder 834 is installed on the middle seat 833, the finger cylinder 835 is connected to the middle seat 833 through a sliding rail, the finger cylinder 835 is connected with the telescopic end of the longitudinal cylinder 834, the clamping block 836 is installed at two moving ends of the finger cylinder 835, and the opposite side surfaces of the clamping block 836 are provided with ejector pins.

The rotor cleaning assembly 84 comprises a cleaning seat 841, a feeding roll 842, a receiving roll 843, an adhesive tape 844, a locking cylinder 845 and a pressing frame 846; the feeding roll 842 and the receiving roll 843 are positioned at two sides of the cleaning seat 841, the central shaft of the receiving roll 843 is provided with an active motor 848, the adhesive tape 844 is wound on the feeding roll 842 and the receiving roll 843, the adhesive tape 844 passes through the upper end of the cleaning seat 841, a guide roller 847 is arranged at the side of the cleaning seat 841, the guide roller 847 guides the adhesive tape 844 and then winds upwards, and the upper end surface of the adhesive tape 844 is an adhesive layer; compress tightly frame 846 and install the flexible end at locking cylinder 845, locking cylinder 845 is fixed on clean seat 841, compresses tightly frame 846 removal cooperation in clean seat 841 upper end, and the upper end that compresses tightly frame 846 is provided with layering 8461, and layering 8461 is located the up end top of clean seat 841, and the upper end of clean seat 841 is provided with the heavy groove 8411 of bar, and layering 8461 corresponds the both ends of the heavy groove 8411 of bar, compresses tightly the sticky tape from both ends. The width of the strip-shaped sunken groove 8411 is matched with the height of the thicker part of the rotor, the pressing strip 8461 is concave, the bottom surface of the pressing strip 8461 is provided with convex ribs, and the contact area between the convex ribs and the adhesive layer of the adhesive tape 844 is reduced. The material receiving roll 843 is provided with a shading sheet and a photoelectric sensor, and the material receiving roll 843 is provided with a damper.

When the rotor cleaning assembly 84 works, the locking cylinder 845 drives the pressing frame 846 to descend, the pressing strip 8461 presses the adhesive tape on the cleaning seat 841, then the rotor rolls up the adhesive tape to stick dust on the surface of the rotor by adhering to the adhesive tape by adhering to the surface of the adhesive tape, and then the feeding roll 842 is matched with the receiving roll 843 to move the adhesive tape to continue cleaning of the next rotor.

Clean subassembly 84 of rotor has solved the clean washing operation of rotor complicacy, need air-dry the many problems of process flow, glue through setting up sticky tape 844 and remove debris such as dust, glue the collection of the dust of being more convenient for of the mode of removing, moreover, the steam generator is simple in structure, the sticky tape can realize the automatic feeding of replacing, realize replacing not having sticky tape position, improve the dust and glue the reliable degree that removes, and the heavy groove 8411 of bar that the upper end of clean seat 841 set up, not only be suitable for the cleanness of thick portion in the middle of the rotor, also can clean both ends axle side, clean degree is higher.

The rotor overturning assembly 85 comprises an overturning support 851, a lowering cylinder 852, a lifting plate 853, a rotating cylinder 854, a rotating table 855, a clamping cylinder 856 and a clamping block 857; the lifting plate 853 is connected to the turning support 851 through a slide rail, the lower air cylinder 852 is installed above the turning support 851, and the telescopic end of the lower air cylinder 852 is connected with the lifting plate 853; the revolving cylinder 854 is installed on the lifter plate 853, the revolving stage 855 is installed at the end of rotation of the revolving cylinder 854, the clamping cylinder 856 is installed on the revolving stage 855, the clamping block 857 is installed at the two ends of movement of the clamping cylinder 856, the side end of the clamping block 857 is protruded, and the protruded part is used for clamping.

When the rotor feeding device 8 works, the first rotor carrying assembly 82 takes the rotor out of the rotor feeding assembly 81 and places the rotor at the position of the transfer assembly 86, then the second rotor carrying assembly 83 clamps the rotor at the position of the transfer assembly 86, and the rotor slowly rolls along the upper part of the rotor cleaning assembly 84 to realize side cleaning; and finally, the rotor overturning assembly 85 clamps the rotor on the second rotor carrying assembly 83 to overturn by ninety degrees, so that vertical feeding is realized.

The rotor feeding device 8 solves the problem that the rotor cannot be cleaned and fed after being taken out of a material tray, the rotor is conveyed by two different conveying modes of the first rotor conveying assembly 82 and the second rotor conveying assembly 83, the first rotor conveying assembly 82 adopts a magnetic suction mode to take materials, and the magnetic suction mode is simple and efficient; the second rotor carrying assembly 83 adopts a mode of clamping a central hole of the rotor, so that the horizontal rotation of the rotor is adapted, and the subsequent cleaning is convenient; the transfer assembly 86 is arranged for transferring, so that the first rotor carrying assembly 82 is connected with the second rotor carrying assembly 83, and the two carrying assemblies are adopted to improve the feeding efficiency of the rotors; through setting up rotor upset subassembly 85 and linking second rotor handling subassembly 83, clip the one end of rotor, realize the upset, be convenient for realize the rotor material loading from the top.

A motor assembling method comprises the following steps of processing in sequence:

s1 mandrel feeding: the mandrel feeding device 2 separates the mandrel and carries the mandrel to a positive jig 17 in the jig rotating device 1; s2 casing feeding: the shell feeding device 3 conveys the shell to the normal loading jig 17 to realize feeding;

s3 mandrel riveting: the mandrel riveting device 4 compresses the mandrel in the shell;

s4 turning the case: the shell turnover device 5 turns over the shell with the mandrel and then places the shell in the reverse installation jig 18;

s5 assembling the elastic sheet: the motor elastic sheet feeding device 6 is assembled on a mandrel in the shell after the elastic sheets are cut;

s6 mandrel oiling: the core shaft oiling device 7 coats the core shaft with oil;

s7 rotor assembly: the rotor feeding device 8 is used for cleaning the rotor and then conveying the cleaned rotor to the mandrel to realize assembly;

s8 blanking: the product blanking device 9 clamps the formed products out of the reverse installation jig 18 to realize blanking.

Claims

1. A permanent magnet direct current motor elastic sheet feeding device is characterized by comprising a chassis (61), a material belt feeding mechanism (62), an elastic sheet cutting mechanism (63), an elastic sheet carrying mechanism (64) and a material belt collecting mechanism (65); the material belt feeding mechanism (62) is installed on the chassis (61), the elastic sheet cutting mechanism (63) is located below the material belt feeding mechanism (62), the elastic sheet carrying mechanism (64) corresponds to the discharging end of the material belt feeding mechanism (62), and the material belt collecting mechanism (65) is connected with the lower end of the material belt feeding mechanism (62); the material belt feeding mechanism (62) is used for driving a material belt of the elastic sheets to realize feeding, the elastic sheet cutting mechanism (63) is used for separating the elastic sheets from the material belt, the elastic sheet carrying mechanism (64) is used for carrying and feeding the elastic sheets, and the material belt collecting mechanism (65) is used for cutting and collecting waste materials of the material belt; the shrapnel carrying mechanism (64) comprises a vertical seat (641), a horizontal cylinder (642), a vertical cylinder (643), a suction block (644), a centering column (645) and a limit sensor (646); the vertical base (641) is arranged on the chassis (61), the horizontal cylinder (642) is horizontally arranged on the vertical base (641), the vertical cylinder (643) is movably connected on the vertical base (641), the telescopic end of the horizontal cylinder (642) is connected with the vertical cylinder (643), the suction block (644) is arranged at the telescopic end of the vertical cylinder (643), the cross section of the lower end of the suction block (644) is a ring surface, the ring surface is provided with a suction hole, the centering column (645) is elastically connected with the center of the suction block (644), the lower end of the centering column (645) protrudes out of the lower end surface of the suction block (644), and the centering column (645) is matched with the central hole of the elastic sheet.

2. The permanent magnet direct current motor spring plate feeding device according to claim 1, wherein the material belt feeding mechanism (62) comprises an overhead table (621), a middle rail (622), an auxiliary pressing wheel (623), a driving pressing wheel (624), a stepping motor (625), a resisting block (626) and an arc-shaped material rail (627); an overhead table (621) is arranged on a chassis (61), a middle track (622) is arranged in the middle of the overhead table (621), a material belt is arranged in the middle track (622), an auxiliary pressing wheel (623) and an active pressing wheel (624) are connected to the overhead table (621), the auxiliary pressing wheel (623) and the active pressing wheel (624) correspond to the material belt in the middle track (622), the active pressing wheel (624) is arranged at the rotating end of a stepping motor (625), salient points are arranged on the circumferential edges of the auxiliary pressing wheel (623) and the active pressing wheel (624), and the salient points correspond to circular holes in the material belt; the arc-shaped material rail (627) is connected with the discharge end of the middle rail (622).

3. The permanent magnet direct current motor spring plate feeding device according to claim 2, wherein a vertical through hole is formed in the end portion of the middle rail (622), the abutting block (626) is installed above the middle rail (622), an arc-shaped cutting edge is formed in the end portion of the abutting block (626), and the arc-shaped cutting edge is matched with the outer contour of the spring plate.

4. The permanent magnet direct current motor spring piece feeding device is characterized in that the spring piece cutting mechanism (63) comprises a mounting seat (631), a guide post (632), a lifting seat (633), a roller (634), a primary cylinder (636), a secondary cylinder (637), a driving inclined plate (638), a cutting block (639) and a pressing block (630), wherein the mounting seat (631) is provided with a first sliding groove (6311) and a second sliding groove (6312), the secondary cylinder (637) is movably connected in the first sliding groove (6311), the primary cylinder (636) is mounted on the mounting seat (631), the telescopic end of the primary cylinder (636) is connected with the base of the secondary cylinder (637), the driving inclined plate (638) is movably connected in the second sliding groove (6312), and the driving inclined plate (638) is connected with the telescopic end of the secondary cylinder (637); the guide post (632) is arranged on the mounting seat (631), and the lifting seat (633) is movably connected to the guide post (632) through a linear bearing; the roller (634) is rotatably connected to the lower end of the lifting seat (633), and the roller (634) is matched with the upper end face of the driving inclined plate (638); the cutting block (639) and the pressing block (630) are both connected to the lifting seat (633), the cutting block (639) is fixedly connected with the lifting seat (633), and the pressing block (630) is connected with the lifting seat (633) through a spring with pressure; the utility model discloses a cutting device, including briquetting (630), briquetting (630) upper end become the T font, briquetting (630) upper end and material area phase-match, the upper end of cutting piece (639) is cylindrical, the cylinder middle part is provided with the pore.

5. The permanent magnet direct current motor spring plate feeding device according to claim 4, wherein a sharp needle (6331) is arranged on the lifting seat (633), and the sharp needle (6331) is matched with a round hole in the material belt; the driving inclined plate (638) is provided with a reset plane, a middle plane and a high plane, the three planes are connected through inclined planes, and the roller (634) lifts the cutting block (639) and the pressing block (630) together in the process of moving from the reset plane to the middle plane, so that the material belt is clamped; in the process that the roller (634) moves from the middle plane to the high plane, the pressing block (630) is not moved, the cutting block (639) continues to rise, and the elastic sheet is cut.

6. The permanent magnet direct current motor elastic piece feeding device according to claim 1, wherein the material belt collecting mechanism (65) comprises a feeding seat (651), a cutting knife (652), a cutting cylinder (653), a pin shaft (654) and a feeding barrel (655), the cutting knife (652) is matched in a round hole (6511) in the feeding seat (651), the other end of the cutting knife (652) is provided with a swing rod part (6522), the swing rod part (6522) is provided with a long groove, the cutting cylinder (653) is horizontally fixed, and the telescopic end of the cutting cylinder (653) is matched with the long groove through the pin shaft (654) to form a groove pair.

7. The permanent magnet direct current motor spring piece feeding device according to claim 6, wherein a vertical flat feeding hole is formed in the feeding seat (651), the cutting knife (652) is cylindrical, a cutting notch (6521) is formed in one end of the cutting knife (652), and the cutting notch (6521) is in a reducing opening shape.

8. A permanent magnet direct current motor elastic sheet feeding method is characterized in that a stepping motor (625) drives a driving pressing wheel (624) to rotate to realize feeding of a material belt, a secondary cylinder (637) drives a driving inclined plate (638) to move to drive a lifting seat (633) to move upwards step by step, a pressing block (630) is made to press the material belt firstly, then a suction block (644) of an elastic sheet carrying mechanism (64) sucks an elastic sheet from the upper side, a cutting block (639) continues to ascend, and the elastic sheet is cut off; the elastic piece conveying mechanism (64) conveys the elastic pieces, and redundant material belts enter the material belt collecting mechanism (65) to be cut off and collected.

9. A permanent magnet direct current motor assembling device is characterized by comprising a rack, a jig rotating device (1), a mandrel feeding device (2), a shell feeding device (3), a mandrel riveting device (4), a shell turning device (5), a motor elastic piece feeding device (6), a mandrel oiling device (7), a rotor feeding device (8) and a product discharging device (9), wherein the jig rotating device, the mandrel feeding device, the shell turning device, the motor elastic piece feeding device, the mandrel oiling device, the rotor feeding device and the product discharging device are mounted on the rack; a plurality of stations are arranged on the circumference of the jig rotating device (1), and are respectively a mandrel feeding station, a shell feeding station, a riveting station, a turning station, a spring plate feeding station, an oiling station, a rotor feeding station and a discharging station, wherein the mandrel feeding device (2), the shell feeding device (3), the mandrel riveting device (4), the shell turning device (5), the motor spring plate feeding device (6), the mandrel oiling device (7), the rotor feeding device (8) and the product discharging device (9) sequentially correspond to one circle of the jig rotating device (1) along the machining direction; the motor spring plate loading device (6) is a permanent magnet direct current motor spring plate loading device according to any one of claims 1 to 7.

10. The assembling equipment of the permanent magnet direct current motor according to claim 9, wherein the jig rotating device (1) is used for carrying the assembling parts to realize circumferential rotation, the mandrel feeding device (2) and the machine shell feeding device (3) are used for realizing mandrel and machine shell feeding, and the mandrel riveting device (4) is used for pressing the mandrel in the machine shell; casing turning device (5) are arranged in realizing the upset with the casing, and motor shell fragment loading attachment (6) are arranged in assembling the shell fragment to the casing, and dabber filling device (7) are arranged in scribbling lubricating oil to the centre, and rotor loading attachment (8) are used for wasing the rotor to assemble the dabber on, product unloader (9) are used for carrying out the unloading.