CN114655690A - Automobile body-in-white positioning welding conveying method - Google Patents
Automobile body-in-white positioning welding conveying method Download PDFInfo
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- CN114655690A CN114655690A CN202210286048.8A CN202210286048A CN114655690A CN 114655690 A CN114655690 A CN 114655690A CN 202210286048 A CN202210286048 A CN 202210286048A CN 114655690 A CN114655690 A CN 114655690A
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- positioning
- welding
- white
- conveying system
- agv
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
- B65G47/90—Devices for picking-up and depositing articles or materials
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/02—Carriages for supporting the welding or cutting element
- B23K37/0294—Transport carriages or vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0461—Welding tables
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
- B65G2201/02—Articles
- B65G2201/0294—Vehicle bodies
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Automatic Assembly (AREA)
Abstract
The invention discloses a positioning, welding and conveying method for a white automobile body, which is applied to a positioning, welding and conveying system for a white automobile body, and comprises a preassembly station, a positioning and welding station and a repair welding station which are sequentially arranged, an AGV conveying system, an NC flexible positioning system and a robot conveying system, wherein the NC positioning system is used for positioning white automobile bodies of multiple automobile types.
Description
Technical Field
The invention relates to the technical field of automobile manufacturing equipment, in particular to a positioning, welding and conveying method for an automobile body-in-white.
Background
At present, the trial production of the white automobile body of the automobile is a positioning welding mode, and a calabash island manual hoisting conveying mode is usually adopted due to small batch, so that the defects of low cost, low efficiency and easy deformation of the automobile body are overcome. And the volume production line belongs to mass production, adopts ground reciprocating lever conveying system, high-speed roller bed conveying system usually, has the efficient advantage, nevertheless along with the manufacturing upgrade of riding usefulness and customization, white automobile body fixed-position welding's transport mode shortcoming is prominent gradually:
1. the line body is in a rigid connection or fixed linear layout, the conveying path is single and fixed, and different conveying paths cannot be flexibly selected according to the requirements of the personalized customization process;
2. waiting exists among different stations, and great mechanical impact noise is generated when the stations descend in place;
3. the high-speed roller bed conveying system mainly carries out conveying between stations under the action of friction force of a skid trolley and a rubber coating wheel of a roller bed, synchronous waiting is not needed between the stations, and conveying is needed on a fixed roller bed according to a fixed path.
In the prior art, for example, in patent document "CN 109396683A, integrated welding workstation and automobile production line", a transportation method using an AGV transport cart is shown, but the following disadvantages exist:
1. an AGV is used as a transport trolley, but different conveying paths can be flexibly selected according to the requirements of the personalized customization process;
2. the universal ground positioning device is fixed and does not have the function of directly and flexibly positioning the body-in-white of a plurality of vehicle types;
3. the AGV has the following trolley (skid) to locate the lower trolley body, the lower trolley body carrying and positioning gripper of the trolley type is in positioning butt joint with the universal positioning device, the gripper needs to be stored and replaced, the gripper is placed in the gripper library, and the AGV does not have the function of universal positioning.
Disclosure of Invention
The invention mainly aims to provide a positioning, welding and conveying method for a white automobile body, and aims to solve the problems of multi-vehicle type flexible positioning function of customized white automobile body positioning and welding and multi-path conveying according to process requirements.
In order to achieve the purpose, the invention provides a positioning welding conveying method for an automobile body-in-white, which is applied to a positioning welding conveying system for the automobile body-in-white, wherein the positioning welding conveying system for the automobile body-in-white comprises a preassembly station, a positioning welding station and a repair welding station which are sequentially arranged, an AGV conveying system, an NC flexible positioning system and a robot conveying system, the NC positioning system is used for positioning the body-in-white of multiple vehicle types, and the positioning welding conveying method for the automobile body-in-white comprises the following steps:
after the vehicle type is selected, the AGV conveying system operates to feed materials to pull the materials to the preassembly station, or the vehicle body is connected and operates to the preassembly station to preassemble the white vehicle body along the guidance of a ground magnetic stripe;
after preassembling is completed, the AGV conveying system runs to the stop position of the positioning welding station, and the AGV conveying system is mechanically positioned through a telescopic bolt mechanism;
the NC flexible positioning system operates to control the NC flexible positioning unit to simultaneously act, enter a lower vehicle body positioning hole and lock, and synchronously lift to lift the white vehicle body to a certain height;
the robot conveying system respectively grabs and places the side wall and the top cover on the splicing table to realize positioning and pressing of the side wall;
the robot conveying system grabs the welding gun and completes welding according to the process sequence;
the NC flexible positioning system controls a plurality of groups of NC flexible positioning units to be hooked and opened, then synchronously descend and place a body in white into the AGV conveying system;
after the telescopic bolt for mechanical positioning of the AGV conveying system is opened, the body in white is conveyed to the repair welding station.
According to a further technical scheme, the AGV conveying system is an AGV, laser scanners are arranged in the front of and behind the AGV, and after the vehicle type is selected, the AGV conveying system runs to a loading position to pull materials to the preassembly station, or a vehicle is connected to run to the preassembly station along the guidance of a ground magnetic stripe, and the step of preassembling a white vehicle body comprises the following steps:
and the laser scanner is used for identifying obstacles or personnel so as to ensure the operation safety.
The further technical scheme of the invention is that the robot conveying system grabs the welding gun, and after the welding steps are completed according to the process sequence, the robot conveying system further comprises:
and the robot conveying system places the welding gun on a trolley beside the welding line.
The further technical scheme of the invention is that the NC positioning system adopts a three-axis six-direction full-flexible lower vehicle body positioning mode.
The positioning welding conveying method for the white automobile body of the automobile has the beneficial effects that:
1. the traditional rigid connection line body is broken through, and the flexible process layout of the distributed working island is easier to adopt;
2. the advantages of flexibility, flexibility and economy of the conveying mode are improved;
3. the conveying system is provided with a safety monitoring device, so that the operation is safer and more reliable;
4. personalized customization and intelligent manufacturing upgrade are easier to realize;
5. and a carrying hand grip, a hand grip positioning device and a hand grip storage library of the lower vehicle body are not needed.
Drawings
In order to more clearly illustrate the embodiments or technical solutions of the present invention, the drawings used in the embodiments or technical solutions of the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a top plan view of an automotive body-in-white tack weld feed;
FIG. 2 is a schematic perspective view of the positioning, welding and conveying of the body-in-white of an automobile.
The reference numbers illustrate:
preassembly station 1; a tack welding station 2; a repair welding station 3; an AGV transport system 4; an NC flexible positioning system 5; a robotic delivery system 6; an AGV dolly 7; a bracket 8; an NC positioning unit 9; a robot 10; a linear movement module 11; a welding gun unit 12; a hand placing unit 13; a gripper unit 14; and a gripper unit 15.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
The technical scheme adopted by the positioning, welding and conveying method of the white automobile body of the automobile mainly adopts an NC flexible positioning system to directly position the white automobile bodies of multiple automobile types, is compatible with long and short automobile types, and positions the lower automobile body through the NC flexible positioning system, wherein the NC flexible positioning system is a three-axis six-direction full-flexible lower automobile body positioning mode; the AGV conveying method comprises the following steps of (1) conveying a white automobile body by adopting a ground magnetic stripe navigation AGV trolley, and realizing the function of flexible conveying according to different process requirements; according to the differences of different positioning accuracies, different positioning modes (AGV self-positioning and auxiliary positioning mechanisms) are selected, so that the flexibility and the economy of the conveying system are ensured; the conveying control is realized by a PLC control system, an AGV control system, an NC positioning control system and a robot control system respectively.
The positioning, welding and conveying method for the white automobile body of the automobile is applied to a positioning, welding and conveying system for the white automobile body of the automobile shown in figures 1 and 2, the positioning, welding and conveying system for the white automobile body of the automobile comprises a preassembly station 1, a positioning and welding station 2 and a repair welding station 3, an AGV conveying system 4, an NC flexible positioning system 5 and a robot conveying system 6, wherein the NC flexible positioning system 5 is used for positioning the white automobile bodies of multiple automobile types.
In this embodiment, the AGV conveying system 4 mainly includes a control system, an AGV carriage 7 and a tray 8, and is mainly used for conveying a body in white or a lower body, and realizes flexibility of a vehicle type by replacing the tray 8. The working principle is as follows: the AGV trolley 7 accurately reaches the station stopping position under the control of the system, and the AGV is mechanically positioned through the telescopic bolt mechanism of the clamp unit 15, so that the positioning accuracy is ensured.
The NC flexible positioning system 5 mainly comprises a control system and a plurality of groups of NC positioning units 9, the lower vehicle body is positioned by the NC flexible positioning system 5, the NC flexible positioning system 5 adopts a three-axis six-direction full-flexible lower vehicle body positioning mode, and the NC flexible positioning system has the technical advantages that the carrying hand grip, the hand grip positioning device and the hand grip storage library of the lower vehicle body are not needed. The working principle is as follows: the NC positioning unit 9 moves in the X/Y/Z direction to an accurate positioning hole position according to vehicle type information under the control of the system, and lifts the body in white to realize accurate positioning and supporting functions.
The robot conveying system 6 mainly comprises a linear moving module 11 (seven-axis slide rail) and a robot 10, has the function of grabbing various grippers and a welding gun 12, has the technical characteristic of flexibility, and completes the general splicing welding of the body in white by using the least robot 10. The working principle is as follows: the robot 10 moves to different positions through a linear moving module 11 (seven-axis slide rail) under the control of the system, a gripper unit 14 is gripped and placed on a clamp unit 15 from a gripper placing unit 13 beside the robot, a sliding mechanism on the clamp unit 15 pushes the gripper unit 14 to achieve the accurate positioning and clamping function of the side wall, then the robot 10 releases the gripper to change a gun plate, and other grippers or welding guns 12 are gripped according to the process.
Specifically, the preferred embodiment of the method for welding and conveying the body-in-white of the automobile comprises the following steps:
step S10, after the vehicle type is selected, the AGV conveying system operates to the loading and unloading station to pull the materials to the preassembly station, or the vehicle body is connected and operates to the preassembly station to preassemble the white vehicle body along the guidance of the ground magnetic stripe;
step S20, after preassembling, the AGV conveying system runs to the stop position of the positioning welding station, and the AGV conveying system is mechanically positioned through the telescopic bolt mechanism;
step S30, the NC flexible positioning system operates to control the NC flexible positioning unit to simultaneously act, enter a positioning hole of the lower vehicle body and lock, and then synchronously lift to lift the white vehicle body to a certain height;
step S40, the robot conveying system respectively grabs and places the side wall and the top cover on the splicing table to realize the positioning and pressing of the side wall;
step S50, the robot conveying system grabs the welding gun and completes welding according to the process sequence;
step S60, the NC flexible positioning system controls a plurality of groups of NC flexible positioning units to open hooks and then synchronously descend, and a body in white is placed in the AGV conveying system;
and step S70, after the telescopic bolt for mechanical positioning of the AGV conveying system is opened, the body in white is conveyed to the repair welding station.
In this embodiment, AGV conveying system is the AGV dolly, be provided with laser scanner around the AGV dolly, after selecting the motorcycle type, AGV conveying system moves to the material and removes to draw the material extremely preassemble the station, perhaps connects the body along the navigation of ground magnetic stripe and move extremely the step of preassembling station preassemble white automobile body includes:
and the laser scanner is used for identifying obstacles or personnel so as to ensure the operation safety.
In this embodiment, the robot transportation system grabs the welding gun, and after completing the welding steps according to the process sequence, the method further includes:
and the robot conveying system places the welding gun on a trolley beside the welding line.
The technical innovation points of the positioning welding conveying method for the white automobile body of the automobile are as follows:
1. the invention adopts the distributed station layout according to the process requirements, and has the characteristic of flexibility;
2. according to the invention, different positioning modes (AGV self-positioning, AGV and body-in-white flexible positioning mechanisms) are adopted, so that the advantages of flexibility and economy are integrated;
3. the AGV has the advantages that a plurality of control systems are integrated, and the AGV is provided with a safety monitoring device, so that the safe and reliable running function is realized;
4. the invention has simple principle, breaks through the characteristics of the traditional linear type and fixed line body, and is easy to realize personalized customization and intelligent manufacturing upgrade.
The positioning welding conveying method for the white automobile body of the automobile has the beneficial effects that:
1. the traditional rigid connection line body is broken through, and the flexible process layout of the distributed working island is easier to adopt;
2. the advantages of flexibility, flexibility and economy of the conveying mode are improved;
3. the conveying system is provided with a safety monitoring device, so that the operation is safer and more reliable;
4. personalized customization and intelligent manufacturing upgrade are easier to realize;
5. the carrying hand grips, hand grip positioning devices and hand grip storage rooms for unloading the vehicle body are not needed.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (4)
1. The utility model provides a white automobile body of car fixed-position welding conveying method, its characterized in that, white automobile body of car fixed-position welding conveying method is applied to white automobile body of car fixed-position welding conveying system, white automobile body of car fixed-position welding conveying system is including the pre-installation station, fixed-position welding station and the repair welding station that set gradually to and AGV conveying system, NC flexible positioning system and robot conveying system, wherein, NC positioning system is used for the white automobile body of location multi-vehicle type, white automobile body of car fixed-position welding conveying method includes following step:
after the vehicle type is selected, the AGV conveying system operates to feed materials to pull the materials to the preassembly station, or the vehicle body is connected and operates to the preassembly station to preassemble the white vehicle body along the guidance of a ground magnetic stripe;
after preassembling is completed, the AGV conveying system runs to the stop position of the positioning welding station, and the AGV conveying system is mechanically positioned through a telescopic bolt mechanism;
the NC flexible positioning system operates to control the NC flexible positioning unit to simultaneously act, enter a positioning hole of the lower vehicle body and lock, and then synchronously lift to lift the white vehicle body to a certain height;
the robot conveying system respectively grabs and places the side wall and the top cover on the splicing table to realize positioning and pressing of the side wall;
the robot conveying system grabs the welding gun and completes welding according to the process sequence;
the NC flexible positioning system controls a plurality of groups of NC flexible positioning units to open and then synchronously descend, and the body in white is placed in the AGV conveying system;
and after the telescopic bolt for mechanical positioning of the AGV conveying system is opened, the body in white is conveyed to the repair welding station.
2. The automobile body-in-white positioning, welding and conveying method according to claim 1, wherein the AGV conveying system is an AGV, a laser scanner is arranged in front of and behind the AGV, and after the automobile type is selected, the AGV conveying system runs to a loading station to pull materials to the preassembly station, or the step of connecting the automobile body to preassemble the body-in-white at the preassembly station along a ground magnetic stripe navigation operation comprises the following steps:
and the laser scanner is used for identifying obstacles or personnel so as to ensure the operation safety.
3. The automobile body-in-white positioning, welding and conveying method according to claim 1, wherein the robot conveying system grabs a welding gun and further comprises the following steps after the welding is completed according to the process sequence:
and the robot conveying system places the welding gun on a trolley beside the welding line.
4. The automobile body-in-white tack welding conveying method according to claim 1, characterized in that the NC positioning system adopts a three-axis six-direction fully flexible lower body positioning mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210286048.8A CN114655690A (en) | 2022-03-23 | 2022-03-23 | Automobile body-in-white positioning welding conveying method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210286048.8A CN114655690A (en) | 2022-03-23 | 2022-03-23 | Automobile body-in-white positioning welding conveying method |
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| Publication Number | Publication Date |
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| CN114655690A true CN114655690A (en) | 2022-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210286048.8A Pending CN114655690A (en) | 2022-03-23 | 2022-03-23 | Automobile body-in-white positioning welding conveying method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115258003A (en) * | 2022-07-08 | 2022-11-01 | 奇瑞汽车股份有限公司 | Fixing tool for vehicle body side wall assembly |
-
2022
- 2022-03-23 CN CN202210286048.8A patent/CN114655690A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115258003A (en) * | 2022-07-08 | 2022-11-01 | 奇瑞汽车股份有限公司 | Fixing tool for vehicle body side wall assembly |
| CN115258003B (en) * | 2022-07-08 | 2023-10-31 | 奇瑞汽车股份有限公司 | Car body side wall assembly fixing tool |
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