CN113263309B - Chassis assembly EMS line for intelligent transportation of multiple vehicle types and control method thereof - Google Patents
Chassis assembly EMS line for intelligent transportation of multiple vehicle types and control method thereof Download PDFInfo
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- CN113263309B CN113263309B CN202110656043.5A CN202110656043A CN113263309B CN 113263309 B CN113263309 B CN 113263309B CN 202110656043 A CN202110656043 A CN 202110656043A CN 113263309 B CN113263309 B CN 113263309B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/001—Article feeders for assembling machines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P21/00—Machines for assembling a multiplicity of different parts to compose units, with or without preceding or subsequent working of such parts, e.g. with programme control
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D65/00—Designing, manufacturing, e.g. assembling, facilitating disassembly, or structurally modifying motor vehicles or trailers, not otherwise provided for
- B62D65/02—Joining sub-units or components to, or positioning sub-units or components with respect to, body shell or other sub-units or components
- B62D65/022—Transferring or handling sub-units or components, e.g. in work stations or between workstations and transportation systems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P2700/00—Indexing scheme relating to the articles being treated, e.g. manufactured, repaired, assembled, connected or other operations covered in the subgroups
- B23P2700/50—Other automobile vehicle parts, i.e. manufactured in assembly lines
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- Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
Abstract
The invention discloses a chassis assembly EMS line for intelligent transportation of multiple vehicle types and a control method thereof, wherein the chassis assembly EMS line comprises a chassis body patch cord, an EMS lifting appliance and a lifting appliance maintenance lifting section; EMS hoist includes EMS transport trolley, hoist elevating gear, switch and carbon brush, it is qualified for the next round of competitions station, hoist detection station, carbon brush detection station and automobile body on-line station to set gradually on the chassis automobile body transfer line, hoist detection station department is provided with hoist adjustment mechanism and adjusts the locating pin that makes it accord with the motorcycle type position on the wheel base of hoist and the hoist, the carbon brush that the current collector carried the trolley is installed to the drive train of units of EMS transport trolley carries the EMS to accessible switch over control EMS gets into the automobile body and goes on the line station or hoist maintenance lift section. The invention can realize the functions of conveying, assembling, switching, chassis assembling and the like of all vehicle types, and the comprehensive beat of each station and switching point meets 52S.
Description
Technical Field
The invention relates to a chassis assembly EMS line and a control method thereof, in particular to a chassis assembly EMS line for intelligent transportation of multiple vehicle types and a control method thereof.
Background
With the individuation and diversification of the automobile consumer market demands, the automobile assembly operation is also converted from the traditional single-variety and large-batch production to multi-variety and medium-small batch production, the batch characteristic of the assembly production tends to be complex, new requirements are provided for the assembly operation, and the discrete manufacturing industry is gradually converted from the batch production stage to the individuation customization production stage.
But present current transportation hoist basic structure form all is single chassis motorcycle type transportation hoist, and only the chassis of a specification can be produced on same production line, when the car of other chassis forms is produced to needs, just need to change a whole set of transportation hoist, and the problem that brings like this needs redesign to transport the hoist and stop the line transformation, has reduced production efficiency and cost.
Disclosure of Invention
The invention aims to solve the technical problem of providing a chassis assembly EMS line for intelligent transfer of multiple vehicle types and a control method thereof, which can meet the functions of conveying, assembling, transferring, chassis assembling and the like of multiple vehicle types, and the comprehensive beat of each station and transfer point meets 52S.
The invention adopts the technical scheme to solve the technical problems that an EMS (energy management system) line for assembling a chassis for intelligent transportation of multiple vehicle types is provided, and the EMS line comprises a chassis body transfer line, an EMS lifting appliance and a lifting appliance maintenance lifting section; wherein, the EMS hoist includes EMS transport trolley, hoist elevating gear, switch and carbon brush, it down lines station, hoist detection station, carbon brush detection station and the automobile body station of going on the line to set gradually on the chassis automobile body transfer line, hoist detection station department is provided with hoist adjustment mechanism, hoist adjustment mechanism adjusts the locating pin on the wheel base of hoist and the hoist and makes it accord with the motorcycle type position, the current collector is installed to the drive train of units of EMS transport trolley, the current collector detects the carbon brush of station to EMS transport trolley at the carbon brush and carries out the wearing and tearing detection to accessible switch over control EMS hoist gets into the automobile body station of going on the line or hoist maintenance lift section.
Furthermore, the lifting appliance comprises a pair of front lifting appliance arms and a pair of rear lifting appliance arms which are separately arranged, the upper ends of the front lifting appliance arms are fixed on the front sliding frame and can move back and forth along the front sliding shaft, the lower ends of the front lifting appliance arms are provided with a front supporting block and a rotating seat, and two different chassis positioning pins are arranged on the rotating seat; the upper end of the rear arm of the lifting appliance is fixed on the rear sliding frame and can move back and forth along the rear sliding shaft, and the lower end of the rear arm of the lifting appliance is provided with a rear supporting block; the rear sliding frame is connected with the T-shaped lead screw, the T-shaped lead screw drives the rear sliding frame to move, and the rear sliding frame drives the rear arm of the lifting appliance to move so as to adjust the axle distance of the front arm and the rear arm of the lifting appliance.
Furthermore, the front arm of the lifting appliance comprises a front arm clamping pipe and a front arm upright post, the upper part of the front arm upright post is connected with the front arm clamping pipe after being molded by a hot bending pipe, a front mounting bracket of a lifting appliance opening wheel and a lifting appliance folding adjusting bolt front mounting plate are arranged on the front arm clamping pipe, and the front mounting bracket is in a drawer shape; a front supporting block mounting bracket is arranged at the lower part of the front arm upright post, and the front supporting block and the rotating seat are arranged on the front supporting block mounting bracket; the lifting appliance rear arm comprises a rear arm clamping pipe and a rear arm upright post, the upper part of the rear arm upright post is connected with the front arm clamping pipe after being molded by a hot bending pipe, the bottom of the rear arm upright post is S-shaped and is provided with a rear supporting block mounting bracket, and the rear supporting block is arranged on the rear supporting block mounting bracket; the front supporting block and the rear supporting block are made of polyurethane, the hardness is controlled to be 60-70 degrees of Shore hardness, the front supporting block mounting support and the rear supporting block mounting support are machined and formed by integral square steel, and waist-shaped holes are formed in the front supporting block mounting support and the rear supporting block mounting support to finely adjust the positions of the supporting blocks.
Further, the lifting appliance adjusting mechanism comprises a fixed frame, and a rotating unit and a pin changing mechanism are arranged on the fixed frame; the rotating unit is provided with a guide sleeve and is connected with a T-shaped lead screw on the lifting appliance in a clutch mode to adjust the distance between the front arm and the rear arm of the lifting appliance; the pin changing mechanism comprises a pair of parallel shift levers, the shift levers are eccentrically fixed on the motor shaft and used for shifting the chassis positioning pins on the rotating seat, so that the rotating seat on the lifting appliance can rotate by 90 degrees or 180 degrees.
Furthermore, the EMS conveying trolley comprises a trolley group walking wheel, a driving wheel and a lateral guide wheel, wherein the trolley group walking wheel is in a polyurethane rubber coating form, and the driving wheel is connected with an output shaft of a motor through an expansion sleeve; the lateral guide wheels are positioned on the upper side face and the lower side face of the rail profile; the end of the car group of the EMS conveying trolley is provided with a mechanical accumulation connecting rod and an accumulation shovel plate.
The invention also provides a control method of the chassis assembly EMS line for solving the technical problems, which comprises the following steps:
a vehicle type scanning station is arranged behind a vehicle body offline station, and the vehicle type is scanned and confirmed;
the lifting appliance is conveyed to a lifting appliance detection station by an EMS conveying small handle, and the original position of the lifting appliance is determined by a lifting appliance adjusting mechanism; when the hanger meets the position of the vehicle to be transported, the hanger directly enters a carbon brush inspection station, when the carbon brush inspection meets the requirement, the hanger enters a vehicle body on-line station, a hanger opening mechanism is used for opening the hanger, the hanger is opened, and whether the opening position is in place or not is detected, so that the vehicle is ready to be picked up in place;
when the hanger does not conform to the position of the vehicle model, the wheelbase between the front arm and the rear arm of the hanger is adjusted through the hanger adjusting mechanism; rotating a supporting point corresponding to a chassis positioning pin on a rotating seat of the lifting appliance to a position required by a vehicle type, detecting signals in place, automatically resetting a lifting appliance adjusting mechanism to an original position after the detection is in place, starting an EMS conveying trolley after the resetting of the lifting appliance adjusting mechanism is completed, running the lifting appliance to a carbon brush inspection station, inspecting the carbon brush inspection station, switching to a branch line through a second turnout, entering a supporting point detection station, detecting whether the supporting position meets the requirements of the vehicle type, and switching to a main line through a third turnout and a first turnout according with the requirements;
when the carbon brush inspection does not meet the requirements, the carbon brush enters a branch line maintenance station through the second turnout and the third turnout to be replaced, the carbon brush is returned to a carbon brush inspection station through the third turnout and the first turnout after the replacement is completed, whether the carbon brush is qualified is continuously detected, the carbon brush is directly operated to a vehicle body on-line station after the carbon brush is qualified, a lifting appliance is opened, whether the opening position is in place is detected, and the vehicle is in place and is ready to be picked up.
Furthermore, a line body of the chassis body patch cord is powered by a trolley line, and the trolley line supplies power to the EMS conveying trolley according to a safety partition and electric control power; the collector slides in the electricity row along with the motion of EMS transport trolley and provides the electric energy for other equipment assembly, sliding contact line side is equipped with pause, start and scram button box, and the button box designs to hang the form in the air, and each station is one, and the skew symmetry evenly distributed, be equipped with the pillar lamp on the button box, show station operating condition.
Further, still including adopting two scissors forks to add the belt and carry out the hoist and go up and down, set up safe crashproof switch on the hoist, be equipped with locking and fracture protection switch on the belt, use safe two-dimensional code to detect hoist horizontal position, detect hoist elevating position through two encoders.
Furthermore, each EMS conveying trolley is provided with two stay cord encoders, one is an absolute value encoder, and the other is an incremental encoder, which are used for respectively controlling the lifting distance and the lifting speed of the EMS self-propelled trolley.
Further, the method also comprises the step of displaying by using an HMI (human machine interface) or an industrial personal computer, wherein the picture at least comprises the following components: 4 pieces of finished vehicle information, current vehicle information, 5 pieces of subsequent vehicle type information and corresponding positions of vehicle type fulcrums; and reserving related signal addresses of more than 10 new vehicle types, designing the vehicle type information and the fulcrum corresponding position list into an expandable form, and increasing the vehicle type information and hardware switches in the list when the subsequent new vehicle types are on line to meet the adjustment requirement of the new vehicle types.
Compared with the prior art, the invention has the following beneficial effects: the chassis assembly EMS line for intelligent transfer of multiple vehicle types and the control method thereof can meet the functions of conveying, assembling, switching, chassis assembling and the like of multiple vehicle types, and the comprehensive beat of each station and switching point meets 52S.
Drawings
FIG. 1 is a schematic view of a chassis assembly EMS line for intelligent transportation of multiple vehicle types according to the present invention;
FIG. 2 is a schematic diagram of a spreader structure on a chassis assembly EMS line according to the present invention;
FIG. 3 is a schematic diagram of the forearm construction of the spreader of FIG. 2;
fig. 4 is a schematic diagram of the rear arm structure of the spreader of fig. 2;
FIG. 5A is an enlarged structural view of the bottom of the front arm of the spreader in FIG. 2;
FIG. 5B is a schematic view of a rotary base of the spreader of FIG. 2;
FIG. 5C is a schematic view of a shaft seat structure of the spreader of FIG. 2;
FIG. 6 is a schematic diagram of a spreader adjustment mechanism on a chassis-mounted EMS line according to the present invention;
FIG. 7A is a schematic diagram of the rotary unit of the spreader adjustment mechanism of FIG. 6;
FIG. 7B is a schematic cross-sectional view of the guide sleeve of FIG. 7A;
FIG. 8 is a schematic structural view of a docking feed mechanism of the spreader adjustment mechanism of FIG. 6;
FIG. 9 is a schematic structural view of a pin changer mechanism of the spreader adjustment mechanism of FIG. 6;
fig. 10 is a schematic structural view of a pin change feed mechanism of the spreader adjustment mechanism of fig. 6.
In the figure:
1. a vehicle body off-line station; 2. a lifting appliance detection station; 3. a carbon brush detection station; 4. a vehicle body online station; 5. a lifting section for maintaining a lifting appliance, 6, a first turnout; 7. a second turnout; 8. a third turnout;
101. a front arm of the sling; 102. a rear arm of the spreader; 103. a front support block; 104 rear chock plate; 105. a rotating base; 106. a shaft seat; 107. a front chock; 108. a retainer ring; 109. a rear supporting block; 110. the shaft is provided with an organ cover; 111. the lead screw is covered by an organ; 112. a connecting seat; 113. a rear sliding shaft; 114. a front sliding shaft; 115. a front carriage; 116. connecting sleeves; 117. a bearing support rod; 118. a first bearing housing; 119. a second bearing housing; 120. a T-shaped lead screw; 121. a rear carriage; 122. a first chassis locating pin; 123. a second chassis locating pin; 124. a positioning pin mounting hole; 125. a slew bearing mounting hole; 126. rotating the positioning hole; 127. an end surface step; 128. a dust cover mounting hole; 129. a connecting shaft; 130. a step surface; 131. a kidney-shaped hole;
101-1, a forearm holding tube; 101-2, a first round steel insert; 101-3, forearm upright; 101-4, a first reinforcing rib; 101-5, a front mounting bracket; 101-6, a front mounting plate; 101-7, a front supporting block mounting bracket;
102-1, a rear arm holding tube; 102-2, a second round steel insert; 102-3, rear arm upright; 102-4, a second reinforcing rib; 102-5, mounting plates of spreader opening wheels; 102-6, a rear mounting plate; 102-7, mounting a bracket on the rear supporting block;
201. a rotation unit; 202. a docking feed mechanism; 203. a pin changing mechanism; 204. a pin change feed mechanism; 205. a fixed frame;
201-1, a base; 201-2, a transmission shaft; 201-3, a guide sleeve; 201-4, a first floating plate; 201-5, a second floating plate; 201-6, rotating plate; 201-7, motor spacer bush; 201-8, a pin shaft; 201-9, sealing plate; 201-10, a switch bracket; 201-11, a servo motor; 201-12, deep groove ball bearing; 201-13, a coupler; 201-14, bolt spring; 201-15 nut seats;
202-1, T-shaped lead screw; 202-2 and a limiting block; 202-3, a base; 202-4, a cover plate; 202-5, a servo motor; 202-6, a coupler; 202-7, a bearing; 202-8, linear guide rail; 202-9, a support block; 202-10, positioning pin; 202-11, mounting plate;
203-1, a deflector rod; 203-2, wear-resistant sleeve; 203-3, mounting plate; 203-4, a check ring; 203-5, identifying a switch bracket; 203-6, a drawing pin shifting fork; 203-7, a servo motor;
204-1, a backing plate; 204-2, a base frame; 204-3, a motor bracket; 204-4, a pull rod; 204-5, a switch bracket; 204-6 and a limiting block; 204-8, a rack; 204-9, a gear; 204-11, a servo motor; 204-12, linear guide rail.
Detailed Description
The invention is further described below with reference to the figures and examples.
Fig. 1 is a schematic view of a chassis assembly EMS line for intelligent transportation of multiple vehicle types according to the present invention.
Referring to fig. 1, the chassis assembly EMS line for intelligent transportation of multiple vehicle types provided by the present invention includes a chassis body patch cord, an EMS spreader and a spreader maintenance lifting section; EMS hoist includes EMS transport trolley, hoist elevating gear, switch and carbon brush, it is 1, hoist detection station 2, carbon brush detection station 3 and the automobile body station 4 of going on the line that goes on to set gradually the automobile body of chassis automobile body transfer line, hoist detection station 2 department is provided with hoist adjustment mechanism, hoist adjustment mechanism can adjust the locating pin on the wheel base of hoist and the hoist and make it accord with the motorcycle type position, the current collector is installed to the drive train set of EMS transport trolley, the current collector detects 3 carbon brushes to EMS transport trolley at the carbon brush and abrades the detection to accessible switch over control hoist gets into 4 or the hoist maintenance lift section 5 of the automobile body station of going on the line.
1. Overall technical implementation scheme of the invention
1.1 32 operation process positions can be arranged on the chassis line, wherein the chassis assembling station and the lifting appliance EMS trolley are passively followed.
1.2 Chassis line Process spacing 6500 mm.
1.3 the running speed of the process section with continuous operation of the wire body is 52S-120S/table adjustable, and the running speed of the return section is not lower than 30 m/min;
the 1.4 line body adopts the transmission form that wiping line power supply, liftable EMS are proper motion dolly drive, four post hoists bear the weight of the automobile body shirt rim, requires the adjustment of hoist rear branch point, satisfies the support of all motorcycle types and carries on, and guiding mechanism adopts the form of non-mark manipulator to with the design of locating pin adjusting device in same position.
1.5 the height of the skirt of the vehicle body from the ground is adjustable in the whole process position, and the adjustment range is 500-1800.
1.6 the Y-direction spacing of the positioning pins adopts two forms of 1150mm and 1162mm, and the switching of the positioning pins adopts a full-automatic form.
1.7 load carrying of the consist and spreader was designed to weigh 2.8T.
2. EMS line partial technology implementation scheme of the invention
2.1 accuracy of walking and stopping positions of the trolley group is not less than +/-2 mm.
2.2 the road wheel of the vehicle group is in a polyurethane rubber coating form, the driving wheel is connected with the output shaft of the motor through an expansion sleeve, and a bearing of the road wheel is in a maintenance-free form; the track cleaning brush is designed on the car set, so that the travelling wheels are prevented from being stained and the service life is shortened.
2.3 the lateral guide wheels of the trolley group are positioned on the upper side and the lower side of the track section bar, play a role in guiding and adopt lubrication-free bearings.
And 2.4, the trolley meets the accumulation function, a mechanical accumulation connecting rod and an accumulation shovel plate are designed at the end head of the trolley set, and the mechanical accumulation has the function of ensuring the accumulation safety of the lifting appliance under the condition of failure of electrical control.
2.5EMS current collectors are mounted on the drive train and slide within the banks to provide power to other equipment components while moving with the cart.
2.6 the machining precision on the door cover plate of current collector installation guarantees whole uniformity, guarantees the dolly and at the stability of walking process apron, and the door cover plate satisfies quick maintenance and change simultaneously.
2.7 the current collector has carbon brush wear detection function, carbon brush wear detection position before entering into maintenance area switch.
2.8 in the EMS system, one trolley is provided with a dust suction device, and the dust collector gets electricity from a slide wire.
2.9 the running location of the vehicle group is controlled by using a code belt, and the lifting of the lifting appliance is located by adopting an encoder.
And 2.10 the control box of the bicycle small train set is provided with a display device for displaying diagnosis information such as fault codes of the train set, current and voltage and the like.
2.11 the running mode of the train set can be switched between manual mode and automatic mode through a remote controller; the manual mode operation adopts a wireless remote control mode.
2.12 the slide wire supplies power to the self-propelled trolley by adopting a sectional power supply method, and the power supply section needs to be divided into a safe area and an electric control power.
2.13 the self-propelled trolley is provided with a bicolor warning lamp and a buzzer.
2.14 safety signals of a belt switch, an encoder and the like of the lifting EMS are processed by the safety controller and then fed back to the PLC control system.
3. The invention relates to a technical implementation scheme of a lifting appliance and a lifting part
3.1 the lifting of the lifting appliance adopts a double-scissors fork and belt type, and the integral lifting is required to be stable.
3.2 the descending stroke of the self-propelled trolley is controlled by adopting a double-stay-wire encoder, so that the descending process is controllable.
3.3 the lifting mechanism has necessary safety measures such as descending stroke limit, belt loosening or overspeed protection, an independent safety brake mechanism and the like, and the start, stop and operation have no influence on various safety detections.
3.5 the lift hoist adopts bi-motor to promote, and two promotion motors need link to each other at afterbody output shaft, and the lift adopts frequency conversion control, guarantees the security of lift.
3.6 four belts are adopted for lifting by the lifting appliance, the four belts are respectively lifted independently, and output shafts on two sides of the reduction box respectively drive one belt through a coupler. The belt sets up guide wheel mechanism, presss from both sides the steel wire rope core in the promotion belt, and belt factor of safety guarantees more than 10 times. The transmission coupling ensures that the safety factor is more than 10 times. The output shaft of the motor is connected with the coupler, and the coupler is connected with the belt pulley by adopting an expansion sleeve.
3.7 the lifting appliance is lifted by the traction of a belt, and in order to keep the lifting stable, four pairs of rectangular frames are adopted to form a double-scissor fork, and the stability of the lower frame relative to the upper frame is ensured by the scissor fork. The scissors fork requires reliable structure, and under the condition that any single belt is broken, the scissors fork can ensure the safety of the lifting appliance without tipping.
3.8 for guaranteeing the hoist safety, four promotion belts set up the disconnected area of belt separately and detect the function.
3.9 the sliding section of the scissors fork adopts a guide rail/roller design.
3.10 the switching position, operation station design balance track, need to set up the stabilizer on the lifting mechanism upper frame of dolly group, guarantee that the upper frame walking is steady.
3.11 in order to guarantee the lifting stability and safety of the lifting appliance, two sets of pull rope absolute encoders are required to be arranged on the lifting appliance, and the lifting height and the lifting speed are monitored in real time.
3.12 the hoist adopts four-column hoist form, and hoist major structure adopts the section bar welding to form.
2.13 the lifting appliance is subjected to stress relief treatment, and the strength design safety factor of the chassis lifting appliance is more than or equal to 2.5.
3.14 the connection of the supporting arm and the side arm of the hanger adopts a bolt connection mode.
3.15 line body switching department adopts hoist open mode to connect the car.
3.16 the equipment possesses the hoist leg and opens detection device that targets in place after the hoist is opened, and hoist opens uniformity deviation and does not exceed 5 mm.
3.17 the design of hoist should guarantee that can keep left right balance when the hoist is opened, and the safe distance with lifting machine both sides is not less than 100mm when the hoist is opened.
3.18 drag block of chassis EMS line hoist supports the bottom skirt of the car body. The supporting block can not influence the technological assembly of the chassis line; the supporting block is made of polyurethane material; the supporting block is formed by one-time injection molding of a die, so that the consistency and the strength of the part are ensured.
The 3.19 spreader design should not interfere with chassis line process operations and process equipment (e.g., tighteners, AGVs, manipulators, etc.).
3.20 safety steel cables are arranged between the upper frame of all the lifting appliances and the train set.
3.21 shot blasting the surface of the hanger, and then spraying plastics. The main part is sprayed with obvious numbers so as to be convenient for management.
3.22 all chassis hoists need to be detected through the detection tool after being on line, and the consistency of the adjustable parts of the hoists is ensured.
4. The invention relates to a technical scheme for realizing a track part
4.1EMS walking track adopts the aluminium alloy, and specification is no less than 6005T5, and the heavy-duty track of size no less than 240X 80 (track bearing carries out accounting according to hoist weight and automobile body weight), and aluminium track manufacturing requirement accords with GB/T6892-2000Al, GB50429-2007[ aluminium alloy structural design specification ] standard and GBT 14846-. The straightness of the track is required to be guaranteed to be 1 mm/m. The surface cleanness and the surface flatness of the track are required to be within the range of 0.2mm/m, the curves are uniform, and the track system is stable in structure.
4.2 the processing and manufacturing deviation of the compensation steel structure, and the C-shaped hook is an adjustable structure.
4.3 the track connection requires to adopt rigid connection board, requires that the difference in height of the upper surfaces of two sections of tracks at the junction is less than 0.5mm, avoids the phenomenon of colliding with the walking wheel.
4.4 temperature expansion joint: the temperature expansion joint is required to be arranged at least 30 meters, and the expansion distance meets the expansion range of the track caused by temperature difference change.
4.5 expansion joints are used to compensate for temperature changes and length changes of the steel structure and the EMS rail due to temperature changes.
4.6 the expansion joint area requires enough strength of the steel structure, the ratio of the bearing length to the non-bearing length of any section of track on the expansion joint is required to be more than or equal to 3:1, and meanwhile, the strength of the expansion joint track is ensured.
4.7 the rail seam of switch off-position aligns, and the rigidity is guaranteed in the rail butt joint, requires that butt joint department track upper surface parallel and level, avoids the walking wheel to collide with. The gap between the interfaces is less than or equal to 3mm, and the planeness of the joint rail is less than or equal to 0.5 mm. The seam is required to be controlled within a tolerance of + -3 mm.
4.8 the maintenance turnout is electric, can be manually controlled to send the trouble dolly into the maintenance section, does not influence the normal use of full line after restoring to the throne.
5. Technical implementation scheme of maintenance lifting section
The EMS car travels to the first switch of the maintenance section and signals the EMS switch. If there is an EMS trolley that is being serviced at the same time ready to enter the spreader main loop section, the trolley will wait until the EMS trolley that is being serviced enters the spreader main loop section. The EMS trolley will then drive into the detection area of the maintenance section between two switches on the main line. Every time the device runs in the detection area, the lifting brake detection, the anti-collision proximity switch detection and the carbon brush abrasion detection can be carried out, and if the device is needed, other device detection can be carried out.
Once the functions cannot be normally operated, the EMS trolley can automatically enter a maintenance area. The EMS trolley can drive to a vacant position behind the turnout and in front of the lifting appliance checking fixture. If the maintenance segment is occupied by an EMS trolley, the faulty EMS trolley cannot move into the maintenance segment, and the trolley will stay in the detection area. The hanger gauge is located in a maintenance section parallel to the main line. The EMS trolley can be returned to the main line or run through a switch to a service lift or service lift hoist.
6. Implementation scheme of electric control part of the invention
6.1 the lift EMS hoist controller scheme needs integrated safety controller, and the detection related to safety should adopt a double-channel safety sensor and integrate the functions of safe speed/safe braking/safe limiting.
6.2 hoist horizontal position detects uses safe two-dimensional code, and the lift position detects through two encoders.
6.3 the control signal wiring on the lifting appliance adopts a precast connector and an electronic junction box, and the motor adopts a fast plug wire technology.
6.4 before entering the maintenance area, a detection station is arranged to detect the carbon brush abrasion of the current collector and the grounding of the vehicle group, the detection result is displayed in the HMI, and the vehicle group with the problems is led into the maintenance area.
6.5 line side design pause, start, emergency stop button box, the button box design is the form of hanging in the air, each station one, the oblique symmetry is evenly distributed; a pillar lamp is required to be designed on the button box, and the operating state of the station is displayed; the specific hanging height and the function of the button box meet the process requirements.
6.6EMS is proper motion dolly conveying system adopts the wiping line to supply power, and control system adopts SEW control system, and EMS is proper motion dolly controller has the frequency conversion function, steerable walking motor and elevator motor steady operation. Each self-propelled trolley is provided with two stay cord encoders, one is an absolute value encoder, and the other is an incremental encoder, which respectively control the lifting distance and the lifting speed of the EMS self-propelled trolley.
6.7EMS bicycle car controller can real time monitoring system's key function, in case the system appears the mistake and will enter the safe mode automatically (stop all actions), and show relevant trouble information on the controller display screen, and transmit trouble information to line body master control system, show on corresponding operation panel. Each self-propelled trolley control unit is communicated with the main control system through waveguide communication.
6.8 the sling is provided with a safety anti-collision switch (proximity switch), the belt is provided with an anti-loosening and fracture protection switch (one switch at the fixed end of each belt), a pull rope encoder and a reference searching switch; the EMS self-propelled trolley can realize different height control according to different vehicle types, and vehicle type codes and altimeter parameter setting can be set through a field touch screen.
7. Other control part technical scheme of the invention
7.1 two sets of online detection are designed on a lifting appliance return section and a sliding plate line switching section of a chassis assembly EMS line, and the system simultaneously meets the automatic switching of a positioning pin and the precision detection of a front fulcrum and a rear fulcrum; and designing a high-position checking fixture and a low-position checking fixture in a maintenance area.
7.2 the front end support is assisted with pin positioning, so that the position precision of the trolley body relative to the trolley at the switching position can be ensured to be +/-1 mm; the precision of the center distance position of the positioning pin of the vehicle body is +/-0.5 mm, and three-coordinate detection data of main sizes are submitted during delivery.
7.3 the EMS line sets up on-line measuring at the hoist section of returning, sets up in the maintenance area and examines the utensil.
The 7.4 detection tool can be used for verifying and adjusting the position of a fulcrum of the lifting tool in the X and Y directions, the function and the position of a bar code rail reading head, the terminal position/reference point of the lifting unit and the lifting height in the Z direction.
7.5 fulcrum adjustment control system, change annular slide line lift preface relevant information, show with HMI or industrial computer, the picture contains at least: 4 pieces of finished vehicle information, current vehicle information, 5 pieces of subsequent vehicle type information and corresponding positions of vehicle type fulcrums; the system reserves relevant signal addresses of more than 10 new vehicle types, designs the vehicle type information and the fulcrum corresponding position list into an expandable form, and can meet the adjustment requirement of the new vehicle type only by adding the vehicle type information and a hardware switch in the list when the subsequent new vehicle type is on line.
7.6 in the maintenance area it must be ensured that all functions of the equipment can be checked and maintained:
the EMS car travels to the first switch of the maintenance section and signals the EMS switch. If there is an EMS trolley that is being serviced at the same time ready to enter the spreader main loop section, the trolley will wait until the EMS trolley that is being serviced enters the spreader main loop section. The EMS trolley will then drive into the detection area of the maintenance section between two switches on the main line. Every time the device runs in the detection area, the lifting brake detection, the anti-collision proximity switch detection and the carbon brush abrasion detection can be carried out, and if the device is needed, other device detection can be carried out.
Once the functions cannot be normally operated, the EMS trolley can automatically enter a maintenance area. The EMS trolley can drive to a vacant position behind the turnout and in front of the lifting appliance checking fixture. If the maintenance segment is occupied by an EMS trolley, the faulty EMS trolley cannot move into the maintenance segment, and the trolley will stay in the detection area. The hanger gauge is located in a maintenance section parallel to the main line. The EMS trolley can be returned to the main line or run through a switch to a service lift or service lift hoist.
The structure and function realization of the main device of the invention are continuously provided in the following with the attached drawings.
Fig. 2 is a schematic diagram of a spreader structure on the chassis assembly EMS line of the present invention.
With continued reference to fig. 2, the spreader of the present invention includes a pair of spreader front arms 101 and a pair of spreader rear arms 102, which are separately disposed, and the spreader front arms 101 and the spreader rear arms 102 are both fixed on the scissor fork lifting spreader through 4 connecting seats 112; the upper end of the front arm 101 of the hanger is fixed on a front sliding frame 115 and can move back and forth along a front sliding shaft 114, the lower end of the front arm 101 of the hanger is provided with a front chock block 107, a front chock block 103 and a rotating seat 105, and the rotating seat 105 is provided with two positioning pins: a first chassis alignment pin 122 and a second chassis alignment pin 123, as shown in fig. 5A.
The upper end of the rear arm 102 of the lifting appliance is fixed on the rear sliding frame 121 and can move back and forth along the rear sliding shaft 113, a connecting sleeve 116 is arranged between the rear sliding frame 121 and the rear sliding shaft 113, and the lower end of the rear arm 102 of the lifting appliance is provided with a rear supporting block 109. The T-shaped lead screw 120 is used for driving torque in a back-and-forth movement mode, one end of the T-shaped lead screw 120 is connected with the first bearing seat 118, the other end of the T-shaped lead screw is connected with the bearing support rod 117 through the second bearing seat 119, and the bearing support rod 117 and the T-shaped lead screw 120 are fixed on the lifting frame. The bearing support rod 117 and the first bearing seat 118 are kept still, the T-shaped lead screw 120 drives the rear carriage 121 to move, and the rear carriage 121 drives the rear arm 102 of the lifting appliance to move so as to adjust the wheelbase of the front arm and the rear arm of the lifting appliance.
The front supporting block 103 and the rear supporting block 109 are supporting blocks which are in contact with a vehicle body, are made of polyurethane, are controlled to be 60-70 degrees in Shore hardness, are made of PA66 originally, are close to the paint hardness of the vehicle body and have certain damage to the paint of the vehicle body, and are made of polyurethane materials, so that the vehicle body can be protected from damage.
As shown in fig. 3, the spreader front arm 101 of the present invention comprises:
the forearm clamping pipe 101-1 is made of a seamless pipe steel pipe Q345, two ends of the forearm clamping pipe are first round steel inserts 101-2, holes are integrally machined to the required size, the concentricity of the holes at the two ends of the first round steel inserts 101-2 is guaranteed to be 0.02mm, an oilless bearing is installed, the fit clearance is controlled within 0.05mm, and the functions of axial sliding and circumferential rotation are guaranteed; the single arm bears 800 Kg. The upper part of a front arm upright post 101-3 is connected with a front arm clamping pipe 101-1 after being molded by a hot bending pipe, so that enough space is ensured for receiving a vehicle, a first reinforcing rib 101-4 is arranged between the front arm clamping pipe 101-1 and the upper part of the front arm upright post 101-3 to play a role in reinforcing, one end of the front arm clamping pipe 101-1 is provided with a front mounting bracket 101-5 of a hanger opening wheel, the front mounting bracket 101-5 is in a drawer shape so as to ensure the space size of the hanger opening wheel, and the other end of the front arm clamping pipe 101-1 is provided with a hanger folding adjusting bolt front mounting plate 101-6; the bottom of the front arm upright post 101-3 is provided with a front support block mounting bracket 101-7, the front support block mounting bracket 101-7 is processed and molded by adopting integral square steel, and a plurality of waist-shaped holes are formed on the front support block mounting bracket 101-7 to ensure the bearing and fine adjustment. Besides moving along the second sliding shaft 114, the forearm clamping tube 101-1 can also be adjusted to an open position by a spreader closing adjusting bolt, and can be rotated inwards or outwards around the second sliding shaft 114.
As shown in fig. 4, the spreader rear arm 102 of the present invention includes:
the rear arm holding pipe 102-1 is made of a seamless pipe steel pipe Q345, two ends of the rear arm holding pipe are second round steel inserts 102-2, holes are integrally machined to the required size, the concentricity of the holes of the two ends of the second round steel inserts 101-2 is guaranteed to be 0.02mm, the fit clearance of the oilless bearings is controlled within 0.05mm, and the functions of axial sliding and circumferential rotation are guaranteed; the single arm bears 800 Kg. The rear arm upright post 102-3 is connected with the rear arm clamping pipe 102-1 after being formed through hot bent pipe, so that enough space is ensured for receiving a vehicle, the bottom S bend avoids the mounting space of wheels, and the assembly of the wheels is ensured not to interfere; a second reinforcing rib 102-4 is arranged between the rear arm holding pipe 102-1 and the upper part of the rear arm upright post 102-3 to play a role in reinforcing, one end of the rear arm holding pipe 102-1 is a mounting plate 102-5 of a lifting appliance opening wheel, the other end of the rear arm holding pipe is a lifting appliance folding adjusting bolt rear mounting plate 102-6, the bottom of the rear arm upright post 102-3 is a rear supporting block mounting bracket 102-7, the rear supporting block mounting bracket 102-7 is formed by machining integral square steel, and a waist-shaped hole is formed in the rear supporting block mounting bracket 102-7 to guarantee bearing and fine adjustment.
Referring to fig. 5A and 5B, the rotary seat 105 is a part for positioning hole fixing and vehicle type switching positioning holes on a chassis of a vehicle body, the rotary seat 105 is cylindrical, two outer circular milling planes of 90 degrees are formed on the outer circular surface, a positioning pin mounting hole 124 is formed on the outer circular milling plane, a first chassis positioning pin 122 and a second chassis positioning pin 123 are mounted by screwing, a rotary bearing mounting hole 125 is axially arranged in the middle of the rotary seat 105 in a penetrating manner, two rotary positioning holes 126 and an end face step 127 are formed on one end face of the rotary seat 105, two ends of the two rotary positioning holes 126 and the end face step 127 are distributed on the circumference at intervals of 90 degrees and are used for positioning by rotating by 90 degrees, and the end face step 127 is used as a hard rotation limit; two dust cover mounting holes 128 are provided in the end surface step 127 for mounting the bellows cover 110 for mounting the shaft and the bellows cover 111 for the lead screw, the bellows cover 110 for the shaft is used for dust prevention for the forward and backward movement shaft, and the bellows cover 111 for the lead screw is used for dust prevention 7 for the lead screw. The first chassis positioning pin 122 and the second chassis positioning pin 123 are different in corresponding vehicle type, different in height and size, made of 42CrMo4, and have certain wear resistance. Of course, the first chassis positioning pin 122 and the second chassis positioning pin 123 may also be distributed on the rotating base 105 at 180 °.
The shaft seat 106 is a fixed seat for installing the rotating seat 105, and a waist-shaped hole 131 on the large surface is arranged on the supporting block installing support of the front arm 101 and the rear arm 102 of the lifting appliance, so that the fine adjustment function is realized; the uppermost connecting shaft 129 is used for fixing and rotating the mounting rotary base, and the step surface 130 is fixed as a rotation angle, as shown in fig. 5C.
Fig. 6 is a schematic structural diagram of a spreader adjusting mechanism on a chassis-mounted EMS line according to the present invention.
The lifting appliance adjusting mechanism comprises a fixed frame 205, wherein a rotating unit 201 and a pin changing mechanism 203 are arranged on the fixed frame 205, the rotating unit 201 is connected with a butt joint feeding mechanism 202, and the pin changing mechanism 203 is connected with a pin changing feeding mechanism 204; the rotating unit 201 moves back and forth under the driving of the butt-joint feeding mechanism 202, a guide sleeve is arranged on the rotating unit 201, and the rotating unit is connected with the T-shaped lead screw 120 on the hanger in a clutch mode to adjust the distance between the front arm and the rear arm of the hanger.
FIG. 7A is a schematic diagram of the rotary unit of the spreader adjustment mechanism of FIG. 6; fig. 7B is a schematic cross-sectional view of the transmission shaft and the guide sleeve in fig. 7A.
Continuing to refer to fig. 7A and 7B, specifically, the rotating unit 201 includes a base 201-1 and a closing plate 201-9, a nut seat 201-15 is disposed on an outer side of the closing plate 201-9, a servo motor 201-11 and a switch bracket 201-10 are disposed on the base 201-1, the servo motor 201-11 is connected to a coupler 201-13 through a deep groove ball bearing 201-12, the coupler 201-13 is connected to a transmission shaft 201-2, a guide sleeve 201-3 is formed by covering an opening end of the transmission shaft 201-2, and the guide sleeve 201-3 is connected to a left hexagon head of a T-shaped lead screw 120 on the hanger in a clutch manner; the opening end of the transmission shaft 201-2 is fixed on the base 201-1 through the rotating plate 201-6, and one end of the rotating plate 201-6 is connected with the base 201-1 through a bolt spring 201-14; a first floating plate 201-4 is arranged on one side of the rotating plate 201-6, a second floating plate 201-5 is arranged on the other side of the rotating plate, and a switch bracket 201-10 is connected to a base 201-1 through a pin shaft 201-8; the deep groove ball bearing 201-11 drives the transmission shaft 201-2 to work, and is matched with the rotating plate 201-6, the first floating plate 201-4 and the second floating plate 201-5 to realize self-centering and certain angle adjustment, so that an angular contact bearing is replaced, the cost is saved, and the use is simpler and more reliable.
Fig. 8 is a schematic structural diagram of a docking feed mechanism of the spreader adjustment mechanism of fig. 6.
Continuing to refer to fig. 8, specifically, the docking and feeding mechanism 202 comprises a base 202-3, a servo motor 202-5, a linear guide rail 202-8 and a T-shaped screw 202-1 are arranged on the base 202-3, and a limit block 202-2 is arranged on the linear guide rail 202-8;
a base 201-1 of the rotating unit 201 is fixed on a linear guide rail 202-8, one end of a T-shaped lead screw 202-1 is connected with a servo motor 202-5 through a bearing 202-7 and a coupler 202-6, and the other end of the T-shaped lead screw is connected with a nut seat 201-15 of the rotating unit 201. The servo motor 202-5 drives the rotating unit 201 to move back and forth, and the T-shaped screw 202-1 drives the rotating unit 201 of the lifting appliance adjusting mechanism to rotate through the screw seat 201-15.
Two ends of one side of the base 202-3 are provided with support blocks 202-9, the periphery of each support block 202-9 is provided with 4 locking positioning holes, the middle of each support block is provided with a positioning pin 202-10, and the positioning pins 202-10 extend out of the surface of the support blocks 202-9 and are used for being connected with the fixed frame 205. In order to ensure the stability and the coaxiality of the T-shaped lead screw 202-1, two ends of the T-shaped lead screw 202-1 are respectively provided with a mounting plate 202-11, and a cover plate 202-4 is arranged on the mounting plate 202-11.
Fig. 9 is a schematic structural view of a pin changing mechanism of the spreader adjustment mechanism of fig. 6.
Referring to fig. 9, in detail, the pin changing mechanism 203 includes a mounting plate 203-4, a servo motor 203-7 and a pair of parallel shift rods 203-1 are disposed on the mounting plate 203-3, a wear-resistant sleeve 203-2 is disposed on the shift rod 203-1, and a pull pin fork 203-6 is connected to one side of the bottom of the mounting plate 203-3 for opening the lock pins of the first chassis positioning pin 122 and the second chassis positioning pin 123. The deflector rod 203-1 is eccentrically fixed on a motor shaft, and the positions of the deflector rod 203-1 and the wear-resistant sleeve 203-2 are adjusted by rotating the servo motor 203-7; the mounting plate 203-3 is also fixedly provided with an identification switch bracket 203-5, the identification switch bracket 203-5 is arc-shaped, and two travel proximity switches distributed at 90 degrees are arranged along the circumferential direction and are used for detecting the positions of the first chassis positioning pin 122 and the second chassis positioning pin 123. The first chassis positioning pin 122 and/or the second chassis positioning pin 123 are/is shifted by the shift lever 203-1 and the wear-resistant sleeve 203-2, so that the rotary seat 105 on the lifting appliance rotates together by 90 degrees or 180 degrees.
Fig. 10 is a schematic structural view of a pin change feed mechanism of the spreader adjustment mechanism of fig. 6.
Referring to fig. 10, specifically, the pin changing and feeding mechanism 204 includes a base frame 204-2, a pad 204-1 is disposed below the base frame 204-2 for adjusting the height, a linear guide 204-12 and a motor bracket 204-3 are disposed above the base frame 204-2, a servo motor 204-11 is disposed on the motor bracket 204-3, the servo motor 204-11 is connected to a gear 204-9, a module of the gear 204-9 is 2, a number of teeth is 30, and a pressure angle is 20 °.
204-8 rack is meshed with the gear 204-9, and 204-8 rack is connected with the pull rod 204-4; the mounting plate 203-3 of the pin changing mechanism 203 is fixed on the linear guide rail 204-12 and is provided with a fixing hole which is sleeved on the pull rod 204-4. The servo motor 204-11 drives the gear 204-9, the gear 204-9 drives the rack 204-8, and the rack 204-8 drives the pull rod 204-4, so as to drive the pin changing mechanism 203 of the lifting appliance adjusting mechanism to move. The number of the racks 204-8 and the pull rod 204-4 is preferably two, the racks are symmetrically distributed on two sides of the gear 204-9, and the two racks 204-8 are driven by the gear 204-9 to simultaneously move outwards or inwards, so that the two pin changing mechanisms 203 can be driven to synchronously move.
Although the present invention has been described with respect to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (7)
1. A chassis assembly EMS line for intelligent transportation of multiple vehicle types comprises a chassis body patch cord, an EMS hanger and a hanger maintenance lifting section; the system is characterized in that the EMS lifting appliance comprises an EMS conveying trolley, a lifting appliance lifting device, switches and carbon brushes, wherein a trolley body unloading station, a lifting appliance detecting station, a carbon brush detecting station and a trolley body loading station are sequentially arranged on a chassis trolley body transfer line, a lifting appliance adjusting mechanism is arranged at the lifting appliance detecting station, the lifting appliance adjusting mechanism adjusts the shaft distance of the lifting appliance and a positioning pin on the lifting appliance to be in line with the position of a trolley type, a current collector is arranged on a driving trolley group of the EMS conveying trolley, the current collector carries out abrasion detection on the carbon brushes of the EMS conveying trolley at the carbon brush detecting station, and the EMS lifting appliance is controlled to enter the trolley body loading station or a lifting appliance maintenance section through switch switching;
the lifting appliance comprises a pair of lifting appliance front arms and a pair of lifting appliance rear arms which are separately arranged, the upper ends of the lifting appliance front arms are fixed on the front sliding frame and move back and forth along the front sliding shaft, the lower ends of the lifting appliance front arms are provided with a front supporting block and a rotating seat, and two different chassis positioning pins are arranged on the rotating seat; the upper end of the rear arm of the lifting appliance is fixed on the rear sliding frame and moves back and forth along the rear sliding shaft, and the lower end of the rear arm of the lifting appliance is provided with a rear supporting block; the rear sliding frame is connected with a T-shaped lead screw, the T-shaped lead screw drives the rear sliding frame to move, and the rear sliding frame drives the rear arm of the lifting appliance to move so as to adjust the wheelbase of the front arm and the rear arm of the lifting appliance;
the front arm of the lifting appliance comprises a front arm clamping pipe and a front arm upright post, the upper part of the front arm upright post is connected with the front arm clamping pipe after being molded by a hot bending pipe, a front mounting bracket of a lifting appliance opening wheel and a front mounting plate of a lifting appliance folding adjusting bolt are arranged on the front arm clamping pipe, and the front mounting bracket is in a drawer shape; a front supporting block mounting bracket is arranged at the lower part of the front arm upright post, and the front supporting block and the rotating seat are arranged on the front supporting block mounting bracket;
the lifting appliance rear arm comprises a rear arm clamping pipe and a rear arm upright post, the upper part of the rear arm upright post is connected with the front arm clamping pipe after being molded by a hot bending pipe, the bottom of the rear arm upright post is S-shaped and is provided with a rear supporting block mounting bracket, and the rear supporting block is arranged on the rear supporting block mounting bracket;
the front supporting block and the rear supporting block are made of polyurethane, the hardness is controlled to be 60-70 degrees of Shore hardness, the front supporting block mounting bracket and the rear supporting block mounting bracket are machined and formed by integral square steel, and waist-shaped holes are formed in the front supporting block mounting bracket and the rear supporting block mounting bracket to finely adjust the positions of the supporting blocks;
the lifting appliance adjusting mechanism comprises a fixed frame, and a rotating unit and a pin changing mechanism are arranged on the fixed frame; the rotating unit is provided with a guide sleeve and is connected with a T-shaped lead screw on the lifting appliance in a clutch mode to adjust the distance between the front arm and the rear arm of the lifting appliance; the pin changing mechanism comprises a pair of parallel shift levers, the shift levers are eccentrically fixed on the motor shaft and used for shifting the chassis positioning pins on the rotating seat, so that the rotating seat on the lifting appliance can rotate by 90 degrees or 180 degrees.
2. The chassis assembly EMS line for intelligent transportation of multiple vehicle types according to claim 1, wherein the EMS transport trolley comprises a set of vehicle wheels, a driving wheel and a lateral guide wheel, the set of vehicle wheels are made of polyurethane rubber coating, and the driving wheel is connected with an output shaft of a motor by an expansion sleeve; the lateral guide wheels are positioned on the upper side face and the lower side face of the rail profile; the end of the car group of the EMS conveying trolley is provided with a mechanical accumulation connecting rod and an accumulation shovel plate.
3. A control method of a chassis-mounted EMS line for intelligent transfer of multi-vehicle models, as recited in claim 1 or 2, comprising the steps of:
a vehicle type scanning station is arranged behind a vehicle body offline station, and the vehicle type is scanned and confirmed;
the lifting appliance is conveyed to a lifting appliance detection station by an EMS conveying small handle, and the original position of the lifting appliance is determined by a lifting appliance adjusting mechanism; when the hanger meets the position of the vehicle to be transported, the hanger directly enters a carbon brush inspection station, when the carbon brush inspection meets the requirement, the hanger enters a vehicle body on-line station, a hanger opening mechanism is used for opening the hanger, the hanger is opened, and whether the opening position is in place or not is detected, so that the vehicle is ready to be picked up in place;
when the hanger does not conform to the position of the vehicle model, the wheelbase between the front arm and the rear arm of the hanger is adjusted through the hanger adjusting mechanism; rotating a supporting point corresponding to a chassis positioning pin on a rotating seat of the lifting appliance to a position required by a vehicle type, detecting signals in place, automatically resetting a lifting appliance adjusting mechanism to an original position after the detection is in place, starting an EMS conveying trolley after the resetting of the lifting appliance adjusting mechanism is completed, running the lifting appliance to a carbon brush inspection station, inspecting the carbon brush inspection station, switching to a branch line through a second turnout, entering a supporting point detection station, detecting whether the supporting position meets the requirements of the vehicle type, and switching to a main line through a third turnout and a first turnout according with the requirements;
when the carbon brush inspection does not meet the requirements, the carbon brush enters a branch line maintenance station through the second turnout and the third turnout to be replaced, the carbon brush is returned to a carbon brush inspection station through the third turnout and the first turnout after the replacement is completed, whether the carbon brush is qualified is continuously detected, the carbon brush is directly operated to a vehicle body on-line station after the carbon brush is qualified, a lifting appliance is opened, whether the opening position is in place is detected, and the vehicle is in place and is ready to be picked up.
4. The method for controlling the chassis assembly EMS line applicable to the intelligent multi-vehicle transfer of claim 3, wherein the line body of the chassis body patch cord is powered by a trolley line, and the trolley line supplies power to the EMS transport trolley according to a safety partition and electric control power; the collector slides along the sliding contact line to provide electric energy for other equipment components while moving along with the EMS conveying trolley, a pause button box, a start button box and an emergency stop button box are arranged on the side of the sliding contact line, the button boxes are designed in an air suspension mode, one is arranged at each station and are obliquely, symmetrically and uniformly distributed, and column lamps are arranged on the button boxes to display the operating state of the stations.
5. The method as claimed in claim 3, further comprising lifting the lifting tool by using a double scissor fork and a belt, wherein the lifting tool is provided with a safety anti-collision switch, the belt is provided with an anti-loosening and fracture protection switch, the horizontal position of the lifting tool is detected by using a safety two-dimensional code, and the lifting position of the lifting tool is detected by using a double encoder.
6. The method as claimed in claim 3, wherein each EMS transport vehicle is provided with two pull rope encoders, one absolute encoder and one incremental encoder, for controlling the lifting distance and speed of the EMS transport vehicle.
7. The method as claimed in claim 3, further comprising displaying with an HMI or an industrial personal computer, wherein the screen at least comprises: 4 pieces of finished vehicle information, current vehicle information, 5 pieces of subsequent vehicle type information and corresponding positions of vehicle type fulcrums; and reserving related signal addresses of more than 10 new vehicle types, designing a position list corresponding to the vehicle type information and the fulcrum into an expandable form, and realizing the adjustment requirement of the new vehicle type by adding the vehicle type information and a hardware switch in the list when the subsequent new vehicle type is on line.
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| CN202110656043.5A CN113263309B (en) | 2021-06-11 | 2021-06-11 | Chassis assembly EMS line for intelligent transportation of multiple vehicle types and control method thereof |
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| CN202110656043.5A CN113263309B (en) | 2021-06-11 | 2021-06-11 | Chassis assembly EMS line for intelligent transportation of multiple vehicle types and control method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE19523294A1 (en) * | 1995-06-27 | 1997-01-02 | Opel Adam Ag | System for joining the chassis units to the body of a motor vehicle |
| JP4710882B2 (en) * | 2007-07-02 | 2011-06-29 | 中西金属工業株式会社 | Transport cart with lifting and rotating functions and automobile assembly line using the same |
| CN102874342A (en) * | 2012-11-16 | 2013-01-16 | 合肥昌河汽车有限责任公司 | Loading system for multiple vehicle frames |
| CN105620585A (en) * | 2016-02-17 | 2016-06-01 | 江苏金坛汽车工业有限公司 | Assembling technology for chassis of electric vehicle |
| CN109204608B (en) * | 2018-10-15 | 2020-07-07 | 宁波吉利汽车研究开发有限公司 | Chassis and vehicle body assembly system and process thereof |
| CN209618670U (en) * | 2018-12-21 | 2019-11-12 | 嘉兴久科机械设备有限公司 | A kind of adjustable automobile chassis line suspender |
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Denomination of invention: Chassis assembly EMS line and its control method for intelligent transportation of multiple vehicle models Effective date of registration: 20231120 Granted publication date: 20220429 Pledgee: Agricultural Bank of China Limited by Share Ltd. South Lake branch Pledgor: Zhejiang jiuke Intelligent Equipment Co.,Ltd. Registration number: Y2023980066351 |
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