CN216912885U

CN216912885U - Electric automobile stopper assembly line rides instead of walk

Info

Publication number: CN216912885U
Application number: CN202220683882.6U
Authority: CN
Inventors: 金成海; 黄启荣; 严时炬
Original assignee: Hubei Yueda Technology Co ltd
Current assignee: Hubei Yueda Technology Co ltd
Priority date: 2022-03-28
Filing date: 2022-03-28
Publication date: 2022-07-08
Anticipated expiration: 2032-03-28

Abstract

An assembly production line for a brake of a walk-substituting electric automobile comprises an assembly table (10), wherein the assembly table (10) is provided with an annular guide rail, a feeding station (11), a hub connecting screw press-mounting station (12), a brake disc correcting and feeding station (13), a brake disc assembly station (14), a coaxiality detection station (15), a sorting station (16) and a knuckle assembly station (17) which are sequentially distributed on two sides of the annular guide rail in a clockwise direction; the utility model has the advantages that: all stations of the whole assembly process are connected through the annular guide rail, the labor distribution layout is reasonable, and the operation personnel are greatly reduced and the work efficiency is improved through automatic alignment and assembly of all the stations.

Description

Electric automobile stopper assembly line rides instead of walk

Technical Field

The utility model relates to the technical field of automobile brake assembly, in particular to an assembly production line of a brake of an electric automobile instead of walking.

Background

At present, because of the large consumption of non-renewable energy, the electric vehicle instead of walk is small in size and convenient to operate and control, so that the electric vehicle is widely used, a brake of the electric vehicle mainly comprises a hub seat, a brake disc, a steering knuckle and a locking nut, wherein the center part of the hub seat is provided with an installation shaft, four hub connecting screw rods are arranged in an annular array by taking the installation shaft as a circle center, the hub connecting screw rods are pressed on the hub seat through a press-fitting machine, the brake disc is fixed with the hub seat through four hexagon bolts, and two ends of the steering knuckle are respectively arranged on the installation shaft through a steering knuckle connecting bearing and are connected and locked through the locking nut and the installation shaft thread; in the whole assembly process, each step needs one worker to operate independently, the worker consumption is excessive, and the working efficiency is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the current, because of the large consumption of non-renewable energy, the electric vehicle instead of walk is small in size and convenient to operate and control, so that the electric vehicle is widely used; every step needs a staff to carry out the isolated operation in whole assembling process, and personnel consume too much, and the low not enough of work efficiency, and provides a electric automobile brake assembly production line of riding instead of walk.

The device comprises an assembly table, wherein the assembly table is provided with an annular guide rail, a feeding station, a hub connecting screw press-mounting station, a brake disc correcting and feeding station, a brake disc assembling station, a coaxiality detection station, a sorting station and a knuckle assembling station which are sequentially distributed on two sides of the annular guide rail in a clockwise direction;

the annular guide rail comprises an annular rail and a synchronous belt driving assembly, the synchronous belt driving assembly is positioned in the annular rail, a plurality of sliding blocks are arranged on the annular rail, one side of each sliding block is connected with a transmission belt of the synchronous belt driving assembly through a connecting piece, a plurality of bearing blocks corresponding to the sliding blocks are further arranged on the assembly table, the bearing blocks are positioned below the sliding blocks, a hub seat positioning disc is arranged at the top of each sliding block, a hub seat placing groove is formed in the hub seat positioning disc, four hub connecting screw avoiding holes are formed in the groove, the hub seat positioning disc is movably arranged on the sliding blocks through a rotating shaft, a circle of fluted disc is arranged at the top of the hub seat positioning disc, a locking rod is hinged to one side of each sliding block, an annular array is provided with four locking grooves on the hub seat positioning disc, and the sliding blocks and the hub seat positioning disc are locked through the locking rods;

the feeding station comprises a belt conveyor and a screw frame which are arranged at one end of the assembling table,

the hub connection screw press-mounting station comprises a screw press-mounting machine, a first fluted disc driving motor and a first motor displacement cylinder, the screw press-mounting machine and the first motor displacement cylinder are respectively installed on the assembling table, the first fluted disc driving motor is movably installed on a piston rod of the first motor displacement cylinder through a buffer seat, a transmission gear matched with a fluted disc for use is arranged on an output shaft of the first fluted disc driving motor, and a first push rod for controlling the locking rod to open is further arranged on the piston rod of the first motor displacement cylinder;

the brake disc correction feeding station comprises a brake disc placing frame, a brake disc correction rotating platform and a first mechanical arm, wherein the brake disc placing frame is positioned on one side of the assembling platform, the first mechanical arm is arranged on the assembling platform, a brake disc carrying mechanical arm is arranged between the brake disc placing frame and the brake disc correction rotating platform, the brake disc correction rotating platform comprises a rotating platform supporting seat, a fixed disc, an annular movable disc, a movable disc driving motor and a brake disc positioning pin, the fixed disc is fixedly connected to the top of the rotating platform supporting seat, the annular movable disc is movably arranged on the fixed disc through a bearing, a driving wheel which is contacted with the annular movable disc is arranged on an output shaft of the movable disc driving motor, the movable disc driving motor is arranged on the rotating platform supporting seat and drives the annular movable disc to rotate on the fixed disc through the driving wheel, a positioning pin mounting groove is formed in the fixed disc, the brake disc is movably arranged in the groove through a spring, and a touch switch for controlling the movable disc driving motor to be opened or closed is arranged at the bottom of the positioning pin mounting groove, the working end of the first mechanical arm is provided with a pneumatic chuck;

the brake disc assembling station comprises a bolt feeding vibration disc, a second mechanical arm, a second gear disc driving motor and a second motor displacement cylinder, the bolt feeding vibration disc is located on one side of an assembling table, the second mechanical arm and the second motor displacement cylinder are respectively installed on the assembling table, a linear feeder is arranged at the discharge end of the bolt feeding vibration disc, a first limit baffle is arranged on one side of a feeding track of the linear feeder, a V-shaped screw head positioning block is arranged at the discharge end of the feeding track, a second limit baffle is arranged on the other side close to the discharge end of the feeding track, a bolt ejection cylinder is arranged on the assembling table, an ejector rod is arranged on a piston rod of the bolt ejection cylinder, a screw positioning groove is formed in the ejector rod, and the ejector rod is located below the discharge end of the feeding track; the working end of the second mechanical arm is provided with an electric screwdriver, a second gear disc driving motor is movably arranged on a piston rod of a second motor displacement cylinder through a buffer seat, the output end of the second gear disc driving motor is provided with a transmission gear matched with a gear disc, and a second push rod for controlling the locking rod to open is further arranged on the piston rod of the second motor displacement cylinder;

the coaxiality detection station comprises a third fluted disc driving motor, a dial indicator, a rotary cylinder and a third motor displacement cylinder, the third motor displacement cylinder and the rotary cylinder are respectively installed on the assembling table, the third fluted disc driving motor is movably installed on a piston rod of the third motor displacement cylinder through a buffer seat, a transmission gear matched with a fluted disc for use is arranged at the output end of the third fluted disc driving motor, a third push rod for controlling the locking rod to open is further arranged on the piston rod of the third motor displacement cylinder, and the dial indicator is installed on the piston rod of the rotary cylinder;

the sorting station comprises a third mechanical arm and a pneumatic chuck arranged at the working end of the third mechanical arm;

the knuckle assembling station comprises a bearing press-mounting machine, a bearing feeding device, a knuckle placing frame and a knuckle carrying mechanical arm, the bearing press-mounting machine and the bearing feeding device are mounted on an assembling table, the knuckle placing frame and the knuckle carrying mechanical arm are positioned on one side of the assembling table, the bearing feeding device comprises a bearing placing frame, a bearing feeding rotary cylinder and an arc chute, the bearing placing frame and the bearing feeding rotary cylinder are respectively mounted on the assembling table, the arc chute is mounted on a piston rod of the bearing feeding rotary cylinder and is positioned below a discharge port of the bearing placing frame, a material baffle is arranged at the feeding end of the arc chute, a discharging plate is arranged at the discharging end of the arc chute, a bearing placing groove is arranged on the discharging plate, a discharging hole is arranged at the bottom of the bearing placing groove, one side of the bearing placing groove is in an open shape communicated with the discharging end of the arc chute, and the discharging plate is formed by splicing a pair of semi-circular plates, the pair of semi-circular plates are hinged to the discharging end of the arc chute respectively, transmission gears matched with each other are arranged at the hinged positions respectively, and a discharging plate driving cylinder for controlling the pair of semi-circular plates to open and close is arranged on one side of the discharging end of the arc chute.

The electric screwdriver comprises a shell, a motor driving assembly, a screw head connector and a connector guide sleeve, wherein the motor driving assembly, the screw head connector and the connector guide sleeve are arranged in the shell; the connector guide sleeve is installed on the shell, a screw connector guide rod is arranged in the connector guide sleeve, a guide ball is arranged at one end of the guide rod, a circle of boss is arranged on the screw connector, a group of guide grooves matched with the guide ball for use are formed in the boss, and the screw connector is located in the connector guide sleeve.

Chamfers are arranged at the corners at the two sides of the bottom of the sliding block and the corners at the two sides of the top of the bearing block.

The assembly table located on two sides of the circular track is respectively provided with a set of slide block positioning rods and a positioning rod driving cylinder, the set of slide block positioning rods are hinged to the assembly table, the positioning rod driving cylinder drives the set of slide block positioning rods to rotate, and one side of each slide block is provided with a limiting groove matched with the slide block positioning rods for use.

And a locking nut placing frame is also arranged on the assembling table positioned at the feeding station.

The utility model has the advantages that: all stations of the whole assembly process are connected through the annular guide rail, the labor distribution layout is reasonable, and the operation personnel are greatly reduced and the work efficiency is improved through automatic alignment and assembly of all the stations.

Drawings

FIG. 1 is a schematic view of the present invention.

FIG. 2 is a schematic structural view of a press-fitting station of the hub connecting screw according to the present invention.

Fig. 3 is a schematic structural view of a brake disc correcting turntable of the utility model.

FIG. 4 is a schematic view of the structure of the bolt loading vibration disk of the present invention.

Fig. 5 is a partially enlarged schematic view of fig. 4.

Fig. 6 is a schematic structural diagram of a brake disc assembling station of the utility model.

FIG. 7 is a schematic diagram of the electric batch structure of the present invention.

FIG. 8 is a schematic view of the screw head connection structure of the electric screwdriver of the present invention.

Fig. 9 is a schematic structural diagram of a bearing feeding device of the utility model.

Fig. 10 is an exploded view of the brake of the present invention.

Detailed Description

As shown in the attached drawings, the brake of the utility model comprises a hub seat 1, a brake disc 2, a steering knuckle 3 and a lock nut 4, wherein the center part of the hub seat 1 is provided with an installation shaft 5, four hub connection screw rods 6 are arranged in an annular array by taking the installation shaft 5 as the circle center, the brake disc 2 is sleeved on the installation shaft 5 and is fixed on the hub seat 1 through four hexagon bolts 7, and two ends of the steering knuckle 3 are respectively installed on the installation shaft 5 through a steering knuckle connection bearing 8 and are connected and locked through the lock nut 4 and the installation shaft 5 in a threaded manner;

the assembly production line comprises an assembly table 10, wherein the assembly table 10 is provided with an annular guide rail, a feeding station 11, a hub connecting screw press-mounting station 12, a brake disc correcting and feeding station 13, a brake disc assembling station 14, a coaxiality detection station 15, a sorting station 16 and a knuckle assembling station 17 which are sequentially distributed on two sides of the annular guide rail in a clockwise direction;

the annular guide rail comprises an annular rail 20 and a synchronous belt driving assembly 21, the synchronous belt driving assembly 21 is positioned in the annular rail 20, a plurality of sliding blocks 22 are arranged on the annular rail 20, one side of each sliding block 22 is connected with a transmission belt of the synchronous belt driving assembly 21 through a connecting piece, a plurality of bearing blocks 23 corresponding to the sliding blocks 22 are further arranged on the assembling table 10, the bearing blocks 23 are positioned below the sliding blocks 22, a hub seat positioning disc 25 is arranged at the top of each sliding block 22, a hub seat placing groove is formed in the hub seat positioning disc 25, four hub connecting screw avoiding holes are formed in the grooves, a hub seat positioning disc 25 is movably mounted on the sliding block 22 through a rotating shaft, a circle of fluted disc 26 is arranged at the top of the hub seat positioning disc 25, a locking rod 27 is hinged to one side of the sliding block 22, four locking grooves are formed in the hub seat positioning disc 25 in an annular array mode, and the sliding block 22 and the hub seat positioning disc 25 are locked through the locking rod 27;

the loading station 11 comprises a belt conveyor 30 and a screw frame 31 mounted at one end of the assembly station 10,

the hub connection screw press-mounting station 12 comprises a screw press-mounting machine 35, a first fluted disc driving motor 36 and a first motor displacement cylinder 37, the screw press-mounting machine 35 and the first motor displacement cylinder 37 are respectively installed on the assembling table 10, the first fluted disc driving motor 36 is movably installed on a piston rod of the first motor displacement cylinder 37 through a buffer seat, a transmission gear matched with a fluted disc 26 is arranged on an output shaft of the first fluted disc driving motor 36, and a first push rod 38 for controlling the locking rod 27 to be opened is further arranged on the piston rod of the first motor displacement cylinder 37;

the brake disc correction feeding station 13 comprises a brake disc placing rack 40 and a brake disc correction rotating platform 48 which are positioned on one side of the assembly table 10, and a first mechanical arm 49 arranged on the assembly table 10, a brake disc carrying mechanical arm 41 is arranged between the brake disc placing rack 40 and the brake disc correction rotating platform 48, the brake disc correction rotating platform 48 comprises a rotating platform supporting seat 42, a fixed disc 43, an annular movable disc 44, a movable disc driving motor 45 and a brake disc positioning pin 46, the fixed disc 43 is fixedly connected to the top of the rotating platform supporting seat 42, the annular movable disc 44 is movably arranged on the fixed disc 43 through a bearing, a driving wheel in contact with the annular movable disc 44 is arranged on an output shaft of the movable disc driving motor 45, the movable disc driving motor 45 is arranged on the rotating platform supporting seat 42 and drives the annular movable disc 44 to rotate on the fixed disc 43 through the driving wheel, a positioning pin mounting groove is formed in the fixed disc 43, and the brake disc positioning pin 46 is movably arranged in the groove through a spring, a touch switch 47 for controlling the opening or closing of the movable disc driving motor 45 is arranged at the bottom of the positioning pin mounting groove, and a pneumatic chuck is arranged at the working end of the first mechanical arm 49;

the brake disc assembling station 14 comprises a bolt feeding vibration disc 50, a second mechanical arm 51, a second gear disc driving motor 53 and a second motor displacement cylinder 54, the bolt feeding vibration disc 50 is located on one side of the assembling table 10, the second mechanical arm 51 and the second motor displacement cylinder 54 are respectively installed on the assembling table 10, a linear feeder 60 is arranged at the discharge end of the bolt feeding vibration disc 50, a first limit baffle plate 62 is arranged on one side of a feeding rail 61 of the linear feeder 60, a V-shaped screw head positioning block 63 is arranged at the discharge end of the feeding rail 61, a second limit baffle plate 64 is arranged on the other side close to the discharge end of the feeding rail 61, a bolt ejection cylinder 65 is arranged on the assembling table 10, an ejector rod 66 is arranged on a piston rod of the bolt ejection cylinder 65, a screw positioning groove is formed in the ejector rod 66, and the ejector rod 66 is located below the discharge end of the feeding rail 61; the working end of the second mechanical arm 51 is provided with an electric screwdriver 70, a second gear disc driving motor 53 is movably arranged on a piston rod of a second motor displacement cylinder 54 through a buffer seat, the output end of the second gear disc driving motor 53 is provided with a transmission gear matched with the gear disc 26 for use, and a second push rod 71 for controlling the locking rod 27 to be opened is further arranged on the piston rod of the second motor displacement cylinder 54;

the coaxiality detection station 15 comprises a third fluted disc driving motor 75, a dial indicator 76, a rotary air cylinder 78 and a third motor displacement air cylinder 79, the third motor displacement air cylinder 79 and the rotary air cylinder 78 are respectively installed on the assembling table 10, the third fluted disc driving motor 75 is movably installed on a piston rod of the third motor displacement air cylinder 79 through a buffer seat, a transmission gear matched with the fluted disc 26 is arranged at the output end of the third fluted disc driving motor 75, a third push rod for controlling the locking rod 27 to be opened is further arranged on the piston rod of the third motor displacement air cylinder 79, and the dial indicator 76 is installed on the piston rod of the rotary air cylinder 78;

the sorting station 16 comprises a third mechanical arm 85 and a pneumatic chuck mounted at a working end of the third mechanical arm 85;

the knuckle assembling station 17 comprises a bearing press-fitting machine 90, a bearing feeding device 93, a knuckle placing rack 91 and a knuckle carrying manipulator 92, the bearing press-fitting machine 90 and the bearing feeding device 93 are installed on an assembling table 10, the knuckle placing rack 91 and the knuckle carrying manipulator 92 are located on one side of the assembling table 10, the bearing feeding device 93 comprises a bearing placing rack 95, a bearing feeding rotary cylinder 96 and an arc chute 97, the bearing placing rack 95 and the bearing feeding rotary cylinder 96 are respectively installed on the assembling table 10, the arc chute 97 is installed on a piston rod of the bearing feeding rotary cylinder 96 and is located below a discharge port of the bearing placing rack 95, a material baffle plate 99 is arranged at the feeding end of the arc chute 97, a blanking plate 98 is arranged at the blanking end of the arc chute 97, a bearing placing groove is formed in the blanking plate 98, a blanking hole is formed in the bottom of the bearing placing groove, one side of the bearing placing groove is in an open shape communicated with the blanking end of the arc chute 97, the blanking plate 98 is formed by splicing a pair of semicircular plates, the semicircular plates are respectively hinged to the blanking end of the arc chute 97, transmission gears matched with each other are respectively arranged at the hinged positions, and a blanking plate driving cylinder 100 for controlling the semicircular plates to open and close is arranged on one side of the blanking end of the arc chute 97.

The electric screwdriver 70 comprises a shell 110, a motor driving component 111 arranged in the shell 110, a screw head connector 112 and a connector guide sleeve 113, wherein one end of the bottom of the screw head connector 112 is provided with a slot matched with a hexagonal screw head for use, a magnet is arranged in the slot, one end of the top of the screw head connector 112 is movably inserted on a power output shaft of the motor driving component 111, and a buffer spring is arranged between the screw head connector 112 and the output shaft of the motor driving component 111; the connector guide sleeve 113 is installed on the housing 110, a screw connector guide rod is arranged in the connector guide sleeve 113, a guide ball 114 is arranged at one end of the guide rod, a circle of boss is arranged on the screw connector 112, a group of guide grooves matched with the guide ball 114 are formed in the boss, and the screw connector 112 is located in the connector guide sleeve 113.

The corners at the two sides of the bottom of the sliding block 22 and the corners at the two sides of the top of the bearing block 23 are both provided with chamfers.

Be located and be equipped with a set of slider locating lever 120 and locating lever drive actuating cylinder 121 on the equipment platform 10 of ring rail 20 both sides respectively, a set of slider locating lever 120 articulates on equipment platform 10, and the locating lever drives actuating cylinder 121 and drives a set of slider locating lever 120 rotation, and open slider 22 one side has the spacing groove of using with slider locating lever 120 cooperation.

A lock nut placing frame 122 is also arranged on the assembling table 10 positioned at the feeding station 11.

The working mode and principle are as follows: the feeding station 11 and the coaxiality detecting station 15 are respectively positioned at two arc ends of the annular guide rail, the hub connecting screw press-mounting station 12, the brake disc correcting and feeding station 13 and the brake disc assembling station 14 are positioned at one side of the annular guide rail, the sorting station 16 and the knuckle assembling station 17 are positioned at the other side of the annular guide rail, the slider positioning rod 120 enables the hub connecting screw press-mounting station 12, the brake disc correcting and feeding station 13, the brake disc assembling station 14, the sliders 22 of the sorting station 16 and the knuckle assembling station 17 to be positioned, the stopping position of each slider 22 is accurate, each station corresponds to one slider 22, a bearing block 23 is arranged below the slider 22 of each station, chamfers are arranged at two side corners of the bottom of the slider 22 and two side corners of the top of the bearing block 23, the sliders 22 can conveniently and smoothly slide above the bearing block 23, and the bearing block 23 can avoid the sliders 22 from pressing and damaging the annular rail 20 during assembling, band conveyer 30 is used for carrying hub seat 1 and the brake disc after the equipment is accomplished, the staff is manual to place hub seat 1 on the hub seat positioning disk 25 that material loading station 11 corresponds slider 22, hub seat 1 is plum blossom form disc, it has the profile modeling groove with hub seat 1 complex to open on the hub seat positioning disk 25, be used for fixed hub seat 1, hub seat positioning disk 25 is under acquiescence the situation and through the locking lever 27 locking between the slider 22, manual insert each mounting hole of hub seat 1 in proper order four wheel hub connecting screw 6, the annular guide starts after the completion, according to station of clockwise movement.

12 working modes of the hub connecting screw press-mounting station: the hub seat 1 moves to the hub connecting screw press-mounting station 12 and stops, the screw press-mounting machine 35 is started to press-mount the first hub connecting screw 6 downwards, the screw press-mounting machine 35 resets after completion, then the first motor displacement cylinder 37 is started to drive the first fluted disc driving motor 36 to approach towards the workpiece, a transmission gear on an output shaft of the first fluted disc driving motor 36 firstly contacts a fluted disc 26 on the hub seat positioning disc 25, the first push rod 38 abuts against one end of the locking rod 27 in the process of continuing to approach towards the workpiece, so that the locking rod 27 is opened, the hub seat positioning disc 25 can rotate on the sliding block 22, the buffer seat has elasticity, after the position of the first fluted disc driving motor 36 is fixed, a piston rod of the first motor displacement cylinder 37 can continue to move forwards for a certain distance, after the locking rod 27 is opened, the first fluted disc driving motor 36 is started to drive the hub seat positioning disc 25 to rotate for 90 degrees, and then the first motor displacement cylinder 37 is reset, the hub seat positioning disc 25 and the sliding block 22 are in a locking state, the screw press-mounting machine 35 is started for the second time to press-mount the second hub connecting screw 6, the actions are repeated, the rest hub connecting screws 6 are sequentially pressed, the annular guide rail is started after the punching is finished, and a station is moved clockwise.

The working mode of the brake disc correction feeding station 13 is as follows: the hub seat 1 after press mounting is moved to the position below the first mechanical arm 49, the brake disc correcting rotary table 48 is used for enabling the bolt mounting hole position on the brake disc 2 to correspond to the bolt mounting hole position on the hub seat 1, and after the brake disc 2 is mounted on the hub seat 1, the bolt mounting holes on the brake disc 2 and the hub seat 1 are aligned, so that bolts can be conveniently mounted; the brake disc carrying manipulator 41 grabs the brake disc 2 in the brake disc placing rack 40 onto the annular movable disc 44, one end of the brake disc 2 is a bolt connecting part protruding outwards, the other end of the brake disc 2 is a knuckle mounting part recessed inwards, the protruding end of the brake disc 2 is positioned in the annular movable disc 44, when the brake disc positioning pin 46 is pressed by the brake disc 2 in the placing process, the touch switch 47 is powered on, the movable disc driving motor 45 is started and drives the annular movable disc 44 to rotate, the brake disc 2 can rotate along with the annular movable disc 44, in the rotating process, when the brake disc positioning pin 46 is aligned with the bolt mounting hole of the brake disc 2, the brake disc positioning pin 46 is popped out and inserted into the bolt mounting hole of the brake disc 2, the bolt mounting hole position of the brake disc 2 is determined, meanwhile, the touch switch 47 is disconnected, the movable disc driving motor 45 is turned off, the first mechanical arm 49 is started, and the brake disc 2 on the brake disc correcting rotary table 48 is grabbed and placed on the hub seat 1 through the pneumatic chuck at the working end, and after the completion, the annular guide rail is started to move a station in a clockwise direction.

Brake disc assembly station 14 mode of operation: the electric screwdriver 70 at the working end of the second mechanical arm 51 grabs the hexagon bolts 7 from the bolt loading vibration disc 50 and fixes the brake disc 2 and the hub seat 1 through the hexagon bolts 7, the bolt loading vibration disc 50 is matched with the linear feeder 60 to load the hexagon bolts 7, the length of the first limit baffle 62 is larger than that of the second limit baffle 64, the first limit baffle 62 is used for primarily adjusting the position of the hexagon bolts 7 to enable one side edge of the hexagon bolts 7 to be parallel to the first limit baffle 62, the second limit baffle 64 and the V-shaped screw head positioning block 63 are used for further positioning the hexagon bolts 7 to enable the hexagon bolts 7 to be placed in order at the discharging end of the feeding track 61, the second mechanical arm 51 drives the electric screwdriver 70 to move to the position above the discharging end of the feeding track 61, the bolt ejecting cylinder 65 is started to eject the hexagon bolts 7 into the screw head connecting head 112 of the electric screwdriver 70, the magnets in the screw head connecting block 112 adsorb the hexagon bolts 7, then the second mechanical arm 51 drives the screwdriver 70 to reset, and the screwdriver 70 drives the hexagon bolt 7 to rotate to fix the brake disc 2 and the hub seat 1; one end of the top of the screw head connector 112 is provided with a power output shaft insertion groove of the motor driving assembly 111, and an angle limiting guide groove is formed in the groove, the screw head connector 112 can only slide up and down on the power output shaft of the motor driving assembly 111, when the electric screwdriver 70 does not work, the guide ball 114 is positioned in the guide groove of the screw head connector 112 under the action of a spring, so that the screw head connector 112 keeps a fixed angle and is conveniently connected with the screw head of the hexagon bolt 7, the number of the guide grooves is six, the number of the guide rods of the screw head connector is optimally six, the hexagon bolt 7 needs to be pressed downwards when the electric screwdriver 70 works, when the electric screwdriver is pressed downwards, the screw head connector 112 moves upwards for a certain distance, the guide ball 114 is separated from the guide groove of the screw head connector 112, when the electric screwdriver 70 is started, the guide ball 114 does not interfere with the rotation of the screw head connector 112, and after one hexagon bolt 7 is installed, the second motor displacement cylinder 54 is started to drive the second gear drive motor 53 to approach towards the workpiece, a transmission gear on an output shaft of the second gear drive motor 53 firstly contacts the gear disc 26 on the hub seat positioning disc 25, the second push rod 71 abuts against one end of the locking rod 27 in the process of continuing to approach towards the workpiece, so that the locking rod 27 is opened, the hub seat positioning disc 25 can rotate on the slide block 22, the buffer seat has elasticity, after the position of the second gear drive motor 53 is fixed, a piston rod of the second motor displacement cylinder 54 can continuously move forwards for a certain distance, after the locking rod 27 is opened, the second gear drive motor 53 is started to drive the hub seat positioning disc 25 to rotate 90 degrees, then the second motor displacement cylinder 54 is reset, the hub seat positioning disc 25 and the slide block 22 are in a locking state, the second mechanical arm 51 is started to install the second hexagon bolt 7 through the electric batch 70, and repeating the actions, sequentially installing the rest hexagon bolts 7, starting the annular guide rail after the installation, and moving one station in the clockwise direction.

Working mode of coaxiality detection station 15: when the installed brake disc 2 moves to the coaxiality detection station 15, the rotary cylinder 78 drives the dial indicator 76 to move to the upper surface of the brake disc 2, the third motor displacement cylinder 79 is started to drive the third fluted disc drive motor 75 to approach towards the workpiece, a transmission gear on an output shaft of the third fluted disc drive motor 75 firstly contacts a fluted disc 26 on the hub seat positioning disc 25, a third push rod abuts against one end of the locking rod 27 in the process of continuing to approach towards the workpiece, so that the locking rod 27 is opened, the hub seat positioning disc 25 can rotate on the slide block 22, the buffer seat has elasticity, when the position of the third fluted disc drive motor 75 is fixed, a piston rod of the third motor displacement cylinder 79 can continue to move forwards for a certain distance, after the locking rod 27 is opened, the third fluted disc drive motor 75 is started to drive the hub seat positioning disc 25 to rotate, and detect the coaxiality of the brake disc 2 through the dial indicator 76, if the installation quality is not reached, if the installation quality is not qualified, when the wheel hub base is moved to the sorting station 16, the third mechanical arm 85 is started to take away the wheel hub base 1 connected with the brake disc 2, the taking-away mode is that the mounting shaft 5 on the wheel hub base 1 is clamped through the pneumatic chuck, the annular guide rail is started after the completion, and the wheel hub is moved to a station in the clockwise direction.

The working mode of the knuckle assembling station 17 is as follows: the bearing feeding device 93 and the knuckle carrying manipulator 92 are used for sequentially sleeving the first knuckle connecting bearing 8, the knuckle 3 and the second knuckle connecting bearing 8 on the mounting shaft 5, each time a part bearing press-fitting machine 90 is placed for press-fitting, the groove body depth of the arc chute 97 is smaller than the height of the knuckle connecting bearing 8, the lowest knuckle connecting bearing 8 of the bearing placing frame 95 is taken away by rotating the arc chute 97 once, the arc chute 97 rotates until the blanking plate 98 is positioned right above the mounting shaft 5 to stop, the baffle plate 99 plays a role of blocking, when the arc chute 97 is reset, the second knuckle connecting bearing 8 falls into the groove, the arc chute 97 is in an inclined shape with a high feeding end and a low discharging end, and in the process that the knuckle connecting bearing 8 is taken away by rotating the arc chute 97, the knuckle connecting bearing 8 positioned in the groove can slide into the blanking plate 98 at the discharging end, after arc chute 97 stops, unloading board 98 is opened under the drive of unloading board drive cylinder 100, knuckle connection bearing 8 falls and overlaps on installation axle 5, and after the pressure equipment was accomplished, the ring rail started, according to a station of clockwise rebound, when the stopper of accomplishing the equipment got back to material loading station 11, manual installation lock nut 4, then take off the stopper and change new wheel hub seat 1, circulate in proper order, only need through alone can control whole assembly line.

Claims

1. An assembly production line of a brake of a walk-substituting electric automobile is characterized by comprising an assembly table (10), wherein the assembly table (10) is provided with an annular guide rail, a feeding station (11), a hub connecting screw press-mounting station (12), a brake disc correcting and feeding station (13), a brake disc assembly station (14), a coaxiality detection station (15), a sorting station (16) and a knuckle assembly station (17) which are sequentially distributed on two sides of the annular guide rail in a clockwise direction;

the annular guide rail comprises an annular rail (20) and a synchronous belt driving assembly (21), the synchronous belt driving assembly (21) is positioned in the annular rail (20), a plurality of sliding blocks (22) are arranged on the annular rail (20), one side of each sliding block (22) is connected with a transmission belt of the synchronous belt driving assembly (21) through a connecting piece, a plurality of bearing blocks (23) corresponding to the sliding blocks (22) are further arranged on the assembly table (10), the bearing blocks (23) are positioned below the sliding blocks (22), a hub seat positioning disc (25) is arranged at the top of each sliding block (22), a hub seat placing groove is formed in each hub seat positioning disc (25), four hub connecting screw avoiding holes are formed in each groove, each hub seat positioning disc (25) is movably arranged on each sliding block (22) through a rotating shaft, a circle of fluted disc (26) is arranged at the top of each hub seat positioning disc (25), and a locking rod (27) is hinged to one side of each sliding block (22), four locking grooves are formed in an annular array on the hub seat positioning disc (25), and the sliding block (22) and the hub seat positioning disc (25) are locked through a locking rod (27);

the feeding station (11) comprises a belt conveyor (30) and a screw frame (31) which are arranged at one end of the assembling table (10),

the hub connection screw press-mounting station (12) comprises a screw press-mounting machine (35), a first fluted disc driving motor (36) and a first motor displacement cylinder (37), the screw press-mounting machine (35) and the first motor displacement cylinder (37) are respectively installed on the assembling table (10), the first fluted disc driving motor (36) is movably installed on a piston rod of the first motor displacement cylinder (37) through a buffer seat, a transmission gear matched with the fluted disc (26) for use is arranged on an output shaft of the first fluted disc driving motor (36), and a first push rod (38) for controlling the locking rod (27) to be opened is further arranged on the piston rod of the first motor displacement cylinder (37);

the brake disc correction feeding station (13) comprises a brake disc placing rack (40) and a brake disc correction rotating table (48) which are positioned on one side of the assembly table (10) and a first mechanical arm (49) arranged on the assembly table (10), a brake disc carrying mechanical arm (41) is arranged between the brake disc placing rack (40) and the brake disc correction rotating table (48), the brake disc correction rotating table (48) comprises a rotating table supporting seat (42), a fixed disc (43), an annular movable disc (44), a movable disc driving motor (45) and a brake disc positioning pin (46), the fixed disc (43) is fixedly connected to the top of the rotating table supporting seat (42), the annular movable disc (44) is movably arranged on the fixed disc (43) through a bearing, a driving wheel which is in contact with the annular movable disc (44) is arranged on an output shaft of the movable disc driving motor (45), the movable disc driving motor (45) is arranged on the rotating table supporting seat (42), the annular movable disc (44) is driven to rotate on the fixed disc (43) through the driving wheel, a positioning pin mounting groove is formed in the fixed disc (43), a brake disc positioning pin (46) is movably mounted in the groove through a spring, a touch switch (47) for controlling the opening or closing of the movable disc driving motor (45) is arranged at the bottom of the positioning pin mounting groove, and a pneumatic chuck is arranged at the working end of the first mechanical arm (49);

the brake disc assembling station (14) comprises a bolt feeding vibration disc (50), a second mechanical arm (51), a second gear disc driving motor (53) and a second motor displacement cylinder (54), the bolt feeding vibration disc (50) is located on one side of the assembling table (10), the second mechanical arm (51) and the second motor displacement cylinder (54) are respectively installed on the assembling table (10), a linear feeder (60) is arranged at the discharge end of the bolt feeding vibration disc (50), a first limit baffle (62) is arranged on one side of a feeding track (61) of the linear feeder (60), a V-shaped screw head positioning block (63) is arranged at the discharge end of the feeding track (61), a second limit baffle (64) is arranged on the other side close to the discharge end of the feeding track (61), a bolt ejection cylinder (65) is arranged on the assembling table (10), and an ejector rod (66) is arranged on a piston rod of the bolt ejection cylinder (65), the ejector rod (66) is provided with a screw positioning groove, and the ejector rod (66) is positioned below the discharge end of the feeding track (61); the working end of the second mechanical arm (51) is provided with an electric screwdriver (70), a second gear disc driving motor (53) is movably mounted on a piston rod of a second motor displacement cylinder (54) through a buffer seat, the output end of the second gear disc driving motor (53) is provided with a transmission gear matched with the gear disc (26) for use, and a second push rod (71) for controlling the locking rod (27) to open is further arranged on the piston rod of the second motor displacement cylinder (54);

the coaxiality detection station (15) comprises a third fluted disc driving motor (75), a dial indicator (76), a rotary cylinder (78) and a third motor displacement cylinder (79), the third motor displacement cylinder (79) and the rotary cylinder (78) are respectively installed on the assembly table (10), the third fluted disc driving motor (75) is movably installed on a piston rod of the third motor displacement cylinder (79) through a buffer seat, a transmission gear matched with the fluted disc (26) is arranged at the output end of the third fluted disc driving motor (75), a third push rod for controlling the locking rod (27) to be opened is further arranged on the piston rod of the third motor displacement cylinder (79), and the dial indicator (76) is installed on the piston rod of the rotary cylinder (78);

the sorting station (16) comprises a third mechanical arm (85) and an air chuck arranged at the working end of the third mechanical arm (85);

the knuckle assembling station (17) comprises a bearing press-fitting machine (90), a bearing feeding device (93), a knuckle placing frame (91) and a knuckle carrying mechanical arm (92), the bearing press-fitting machine (90) and the bearing feeding device (93) are installed on an assembling table (10), the knuckle placing frame (91) and the knuckle carrying mechanical arm (92) are located on one side of the assembling table (10), the bearing feeding device (93) comprises a bearing placing frame (95), a bearing feeding rotary cylinder (96) and an arc chute (97), the bearing placing frame (95) and the bearing feeding rotary cylinder (96) are respectively installed on the assembling table (10), the arc chute (97) is installed on a piston rod of the bearing feeding rotary cylinder (96) and located below a discharge port of the bearing placing frame (95), a material baffle plate (99) is arranged at the feeding end of the arc chute (97), a material discharging plate (98) is arranged at the discharging end of the arc chute (97), it has the bearing standing groove to open on flitch (98) down, and it has the unloading hole to open bottom the bearing standing groove, one side of bearing standing groove for with arc chute (97) unloading end communicating opening form, flitch (98) are formed by the concatenation of a pair of semicircle board down, a pair of semicircle board articulates respectively at the unloading end of arc chute (97), and do not be equipped with the drive gear of mutually supporting in articulated punishment, unloading end one side of arc chute (97) is equipped with the unloading board that a pair of semicircle board of control opened and shut and drives actuating cylinder (100).

2. The assembly production line of the electric automobile brake as claimed in claim 1, wherein the electric screwdriver (70) comprises a housing (110), a motor driving component (111) installed in the housing (110), a screw head connector (112) and a connector guide sleeve (113), wherein a slot matched with the hexagonal screw head is formed in one end of the bottom of the screw head connector (112), a magnet is arranged in the slot, one end of the top of the screw head connector (112) is movably inserted into a power output shaft of the motor driving component (111), and a buffer spring is arranged between the screw head connector (112) and the output shaft of the motor driving component (111); the connector guide sleeve (113) is arranged on the shell (110), a screw connector guide rod is arranged in the connector guide sleeve (113), a guide ball (114) is arranged at one end of the guide rod, a circle of boss is arranged on the screw connector (112), a group of guide grooves matched with the guide ball (114) for use are formed in the boss, and the screw connector (112) is located in the connector guide sleeve (113).

3. The assembly line of claim 1, wherein the corners of the bottom of the sliding block (22) and the corners of the top of the bearing block (23) are chamfered.

4. The assembly line of the electric automobile brake of riding instead of walk according to claim 1, characterized in that a set of slider positioning rods (120) and a positioning rod driving cylinder (121) are respectively arranged on the assembly table (10) at both sides of the circular track (20), the set of slider positioning rods (120) are hinged on the assembly table (10), the positioning rod driving cylinder (121) drives the set of slider positioning rods (120) to rotate, and one side of the slider (22) is provided with a limit groove used in cooperation with the slider positioning rods (120).

5. The assembly line of the electric automobile brake instead of walk according to claim 1, characterized in that a lock nut placing frame (122) is further provided on the assembly table (10) located at the loading station (11).