CN113353567A

CN113353567A - RGV turns to and device is dodged to many cars for production line

Info

Publication number: CN113353567A
Application number: CN202110618204.1A
Authority: CN
Inventors: 李德明; 王彩凤; 宫涛; 查明彦; 雷宁宁; 丁志远; 王国帅; 蒋富强
Original assignee: Shantui Chutian Construction Machinery Co Ltd
Current assignee: Shantui Chutian Construction Machinery Co Ltd
Priority date: 2021-05-31
Filing date: 2021-05-31
Publication date: 2021-09-07

Abstract

The invention discloses an RGV steering and multi-vehicle avoiding device for a production line, which belongs to the technical field of GV logistics and is characterized by comprising a feeding platform, a welding robot workstation, a sub-vehicle track, a main track, a preset number of modularized rotating devices, a preset number of RGV avoiding parking areas, RGV trolleys, a discharging platform, a welding repair positioner, a discharging platform and a safety fence; the invention has the beneficial effects that: can realize many RGV dollies turn to fast, carry the functional mode in coordination, take the rotatory mode of modularization track, realize many RGV mother's car dodging on the thread, solved many cars in coordination and can't realize dodging functional problem in the track, changed the operation (primary and secondary car) that RGV can only go up unloading in two directions at most, can realize diversified automatic unloading operation, possess each station cluster integrated intelligent logistics concept of workshop level.

Description

RGV turns to and device is dodged to many cars for production line

The technical field is as follows:

the invention belongs to the technical field of RGV logistics of multiple processes of a product part production line in the mechanical industry, and can be applied to welding, machining or assembling processes.

Background art:

in recent years, breakthrough in manufacturing automation, numerical control and intellectualization is accelerated, and automatic production lines for welding key structural components are produced at the same time. At present, a structural part welding production line mainly comprises a feeding platform, a welding robot workstation, a sub-vehicle track, a blanking platform, a main track, RGV sub-and-main vehicles, a safety fence and the like. The main process and the operation flow are the working procedures of workpiece assembly → feeding on a feeding table → RGV is automatically conveyed to a position changer → hydraulic automatic clamping of the position changer → robot welding → RGV blanking → automatic conveying to a blanking table, etc.

In the process of intelligent manufacturing and upgrading in the mechanical manufacturing industry, the small-scale automatic production line is mostly adopted. Because general large-scale structure welding man-hour is longer, unloading operation on can all being accomplished to an RGV, through communicating with relevant integrator, in case the RGV dolly goes wrong and generally carries out maintenance work on the track, takes the current driving in the mill to carry out work piece hoist and mount and realize artifical unloading on the track. The RGV automatic feeding and discharging main track is linear, the defect exists that the RGV cannot be separated from the main track, if a long distance or long automatic line serial line is adopted in the future on a large scale, due to the fact that more equipment or more beats exist on a production line, when one RGV cannot meet the requirement of operation load, the problem of cooperative operation of a plurality of RGVs on a common rail needs to be considered, or the problem of steering transportation at any angle occurs, and the existing industry has no substantive solution for a while.

Aiming at the conventional RGV automatic conveying logistics principle, an RGV main vehicle runs on a main rail, a sub vehicle runs on a corresponding loading and unloading station, the sub vehicle rail is generally vertical to the main rail, a production line is too long, and multiple RGV vehicles are needed for cooperative operation; in addition, due to the fact that space limitation needs to be carried out on the production line across the workshop, multiple RGVs need to be avoided on the line and steering is achieved, and the conventional RGV automatic conveying production line cannot meet requirements.

The invention content is as follows:

in order to solve the problems and overcome the defects of the prior art, the invention provides an RGV steering and multi-vehicle avoiding device for a production line, which can effectively solve the technical problems.

The specific technical scheme for solving the technical problems comprises the following steps: the RGV steering and multi-vehicle avoiding device for the production line is characterized by comprising a feeding platform, a welding robot workstation, a sub-vehicle track, a main track, a preset number of modularized rotating devices, a preset number of RGV avoiding parking areas, RGV trolleys, a discharging platform, a welding repair positioner, a discharging platform and a safety fence.

Further, the modular rotating device comprises a rotating disk driven by a servo motor and a slewing bearing, an absolute encoder, a rotating device track and an optoelectronic non-contact sensor.

Furthermore, the servo motor and the slewing bearing are responsible for rotating and bearing gravity, and the absolute encoder ensures that the rotating device track is in butt joint with the main track after rotating through precision control; the rotary device track can be connected with the butt joint main track through a sliding contact line to ensure that the RGV trolley normally runs and runs onto the rotary device track; electro-optical contactless sensing enables RGVs to be parked.

Further, the use method of the RGV steering and multi-vehicle avoiding device for the production line comprises the following steps:

the rotary device track is provided with a modular rotary device with the same specification as the main track, the rotary device drives a rotary disk to rotate and bear gravity through a servo motor and a slewing bearing, the precision is controlled through an absolute encoder, the precision of butt joint after the rotary device track arranged on the rotary disk and the main track on one side rotate is realized, then the rotary device track is connected with the butt joint main track through a sliding contact line, and the RGV is stopped through photoelectric non-contact sensing,

the modular rotating device drives the rotating disc to rotate to a preset angle through the servo motor and the slewing bearing according to instructions, a rotating device track arranged on the rotating disc is in butt joint with a main track on the other side, a sliding contact line is connected with the butt joint track and electrified, and the RGV continues to start to run to realize steering running;

the rotating disc rotates to butt the original main track according to the instruction, and other RGVs pass through; a plurality of embedded modularized rotating devices can be arranged on the RGV main track to realize the all-dimensional automatic material conveying of the RGV, the passing is implemented according to instructions and priorities, and the plurality of embedded modularized rotating devices are combined with the RGVs with preset numbers to avoid parking areas to realize the avoidance.

The invention has the beneficial effects that:

1. aiming at the working procedures of overlong production line or higher load rate, the rapid steering and cooperative conveying functional mode of a plurality of RGV trolleys can be realized.

2. A modularized track rotation mode is adopted, and fast connection power supply of a sliding contact line is combined, so that avoidance of multiple RGV (traffic target volume) master vehicles on a main line is realized, and the problem that avoidance of multiple vehicles on a track cannot be realized in cooperation is solved.

3. The operation (primary and secondary vehicles) that the RGV can only feed and unload in two directions at most is changed, the multidirectional automatic feeding and unloading operation can be realized, and the intelligent logistics concept of inter-vehicle stage and station series line integration is realized.

4. The special field of need taking one and using one to be equipped with the RGV effectively solves and parks on the reserve RGV line, solves the RGV trouble simultaneously and leads to producing the unable automatic conveying of line and goes up the realistic problem of unloading.

Description of the drawings:

FIG. 1 is a schematic of the present invention;

FIG. 2 is a schematic view of a modular rotary apparatus embodying the present invention; in the drawings:

1-feeding platform, 2-welding robot workstation, 3-sub vehicle track, 4-main track, 5-modular rotating device, 6-RGV avoidance parking area, 7-RGV trolley, 8-blanking platform, 9-welding repair positioner, 10-blanking platform, 11-safety fence and 12-rotating disk.

The specific implementation mode is as follows:

in the description of the invention, specific details are given only to enable a full understanding of the embodiments of the invention, but it should be understood by those skilled in the art that the invention is not limited to these details for the implementation. In other instances, well-known structures and functions have not been described or shown in detail to avoid obscuring the points of the embodiments of the invention. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The specific implementation flow is roughly as follows:

production line dispatching calling → the modular rotating device 5 rotates to be in butt joint with the main track 4 according to the priority, the trolley line is electrified → the RGV trolley 7 moves to a set pause position of the main track 4 to stop → the completion of track butt joint of the modular rotating device 5 is confirmed again, the trolley line is electrified → the trolley moves to a preset position of the modular rotating device 5 to stop → the rotating track butt joint of the modular rotating device 5, the trolley line is electrified and fed back → the RGV trolley 7 moves to the track, and the steering operation of the RGV trolley 7 is realized; the avoidance function is to set an RGV avoidance parking area 6 in a predetermined area and complete the above-described rotation collection.

The main principle of the above operation is: in order to solve the limitation that the RGV trolley 7 can only linearly reciprocate on the track, the modularized rotating device 5 with the same specification as the main track is adopted, the modularized rotating device 5 rotates by a servo motor and a rotating disk 12 driven by a slewing bearing and bears gravity, precision control is carried out by an absolute encoder, the precision of butt joint of the track of the modularized rotating device 5 and the main track after rotation is ensured, then the modularized rotating device is connected with the butt joint main track through a sliding contact line, the normal operation of the RGV trolley 7 is ensured, the RGV trolley 7 runs on the rotating device, and the RGV trolley 7 is stopped by photoelectric non-contact sensing,

the modularized rotating device 5 drives the rotating disc 12 to rotate to any angle through the servo motor and the slewing bearing according to the instruction, the rail is in butt joint with the main rail on the other side, the sliding contact line is connected with the butt joint rail and electrified, the RGV trolley 7 continues to start to operate to realize steering operation, the rotating disc 12 rotates to butt the original main rail according to the instruction, and other RGV trolleys 7 pass through.

The RGV main track is provided with a plurality of embedded modular rotating devices 5, so that the omnibearing automatic material conveying of the RGV can be realized, and the modular rotating devices 5 pass through according to instructions and priorities;

the whole line intelligent integrated control can also realize the step control of the segmented manual intervention, a detection sensing mechanism is arranged at the head end and the tail end of each process, the RGV step-by-step transmission control of the workpiece is realized through the PLC programming integrated control, and the method is safe and reliable;

the RGV steering and multi-vehicle avoiding device is only one mode which is beneficial to solving the problems of automatic conveying and feeding and discharging of a production line, but is not limited to the specific example structure, for example, the conventional RGV mode can not meet the requirements, the avoiding function of the RGV can be realized by increasing the length of the main track at two ends of the feeding and discharging platform on the main track, and the device also has a direct relation with an animal streamline and a production organization and changes along with the straight relation.

It should be understood that although the present description has been described in terms of embodiments, it is not intended that each embodiment be construed as a separate embodiment, but rather that the description be given for clarity only, and that the series of detailed descriptions set forth above are merely illustrative of possible embodiments of the invention and are not intended to limit the scope of the invention so that equivalents and modifications thereof can be made without departing from the technical spirit of the invention.

Claims

1. The utility model provides a device is dodged to RGV and multi-car for production line, its characterized in that includes material loading platform, welding robot workstation, sub-car track, main track, the modularization rotary device of predetermineeing quantity, the RGV of predetermineeing quantity dodges parking area, RGV dolly, unloading platform, repair welding machine of shifting, unloading platform and security fence.

2. An RGV steering and multi-car avoidance apparatus for a production line according to claim 1, wherein said modular rotation means comprises a rotary disc driven by a servo motor and a slewing bearing, an absolute encoder, a rotation means track and an electro-optical non-contact sensor.

3. The RGV steering and multi-vehicle avoiding device for the production line as claimed in claim 2, wherein the servo motor and the slewing bearing are responsible for rotation and bear gravity, and the absolute encoder ensures that the rail of the rotating device is butted with the main rail after rotating through precision control; the rotary device track can be connected with the main track through a sliding contact line to ensure that the RGV trolley normally runs and runs onto the rotary device track; electro-optical contactless sensing enables RGVs to be parked.

4. The RGV steering and multi-vehicle avoidance apparatus for a production line according to claim 1, wherein the method of using the RGV steering and multi-vehicle avoidance apparatus for a production line comprises:

the RGV parking system is characterized in that a rotating device track provided with a modularized rotating device with the same specification as the main track is arranged, the rotating device drives a rotating disc to rotate and bear gravity through a servo motor and a slewing bearing, accuracy control is performed through an absolute encoder, the accuracy of butt joint is achieved after the rotating device track arranged on the rotating disc and the main track on one side rotate, then the rotating device track is connected with the main butt joint track through a sliding contact line, and RGV parking is achieved through photoelectric non-contact sensing.

5. The RGV steering and multi-vehicle avoiding device for the production line as claimed in claim 4, which is characterized in that the RGV steering and multi-vehicle avoiding device for the production line is used in a using method, the modular rotating device drives the rotating disc to rotate to a preset angle through a servo motor and a slewing bearing according to a command, a rotating device track arranged on the rotating disc is butted with a main track on the other side, a sliding contact line is connected with the butted track to be electrified, and an RGV trolley is continuously started to run to realize steering running; after the rotating disc rotates to butt the original main track according to the instruction, other RGVs pass through;

a plurality of embedded modularized rotating devices can be arranged on the RGV main track to realize the all-dimensional automatic material conveying of the RGV, the passing is implemented according to instructions and priorities, and the plurality of embedded modularized rotating devices are combined with the RGVs with preset numbers to avoid parking areas to realize the avoidance.