CN218533254U

CN218533254U - Gantry type welding workstation

Info

Publication number: CN218533254U
Application number: CN202120020371.1U
Authority: CN
Inventors: 贾芜青; 郝海成
Original assignee: Shanghai Chinese Car Riberd Intelligent System Co ltd
Current assignee: Shanghai Chinese Car Riberd Intelligent System Co ltd
Priority date: 2020-10-30
Filing date: 2021-01-06
Publication date: 2023-02-28
Anticipated expiration: 2031-01-06

Abstract

The utility model provides a gantry type welding workstation, which comprises a first positioner, a second positioner, a logistics trolley and a welding robot system; the first positioner and the second positioner respectively comprise a gantry framework, a lifting driving device, a hydraulic balance mechanism, a lifting cross beam and a turnover arm with an L-shaped structure; a ladder stand is arranged on the side surface of the gantry framework; the tail end of the turnover arm is provided with a fixed clamp; the hydraulic balance mechanism connects the lifting beam with the gantry framework through a chain and sprocket mechanism; the first positioner further comprises a driving mechanism and a ground rail; the gantry type positioner structure and the automatic clamping device can automatically clamp the workpiece to be welded, replace the existing manual clamping mode, reduce the labor intensity of workers and improve the welding operation efficiency; the automatic welding process does not need too much participation of workers, reduces the possibility of dangerous accidents in the welding process, and improves the safety and reliability of welding.

Description

Gantry type welding workstation

Technical Field

The utility model belongs to the technical field of the welding, especially, relate to a planer-type weldment work station.

Background

At present, in the welding process of the welding seam outside the wagon body of the railway wagon, manual welding is carried out, the welding seam at the side face position of the wagon body needs to be changed into the welding seam at the horizontal position by using the cooperation of a manual welding positioner of the wagon body, and then an operator is lifted to the upper plane position of the wagon body by an auxiliary lifting platform for welding.

In the welding process of the wagon body of the railway wagon, the welding process flow is as follows: the overhead traveling crane hangs one → the positioner clamp fixes the vehicle body → the positioner shifts the vehicle body → manual welding → the positioner resets the vehicle body → the positioner clamp loosens the vehicle body → the overhead traveling crane hangs the vehicle body away from the positioner, the whole process is manually operated; because the railway wagon belongs to a long and large object and has heavy weight, the state of the wagon body is clamped by the positioner, manual confirmation is needed, the labor intensity of workers is high, and the welding operation efficiency is reduced; moreover, when a person works above the vehicle body, the working height is usually about 3m, which is likely to cause a dangerous accident.

SUMMERY OF THE UTILITY MODEL

In view of the above shortcoming of prior art, an object of the utility model is to provide a planer-type weldment work station for it is big to solve current welding process workman intensity of labour, problem that the operating efficiency is low.

To achieve the above and other related objects, the present invention provides a gantry welding station, including: the system comprises a first positioner, a second positioner, a logistics trolley and a welding robot system; the first positioner and the second positioner are arranged face to face and span the vehicle logistics channel; the logistics trolley is positioned on the vehicle logistics channel, and a workpiece to be welded is loaded on the logistics trolley; the welding robot system is arranged on the same side of the first positioner and the second positioner; the first positioner and the second positioner both include: the device comprises a gantry framework, a lifting driving device, a hydraulic balance mechanism, a lifting cross beam and a turnover arm of an L-shaped structure; wherein, a ladder stand is arranged on the side surface of the gantry framework; the upper end of the turnover arm is connected with the lifting cross beam, and a fixed clamp is installed at the tail end of the turnover arm; the hydraulic balance mechanism connects the lifting cross beam with the gantry framework through a chain and sprocket mechanism; the lifting driving device is connected with the lifting cross beam; the first positioner further comprises: a driving mechanism and a ground rail; wherein the driving mechanism is connected with the gantry framework; the ground rail is arranged below the gantry framework.

In an embodiment of the present invention, the welding robot system includes: the robot comprises a first robot motion shaft, a second robot motion shaft and a supporting upright post; the first robot movement axis is horizontally arranged; the supporting upright column is vertically arranged, the upper end of the supporting upright column is connected with the lower end of the first robot motion shaft, and the lower end of the supporting upright column is arranged on the ground; the second robot motion shaft is erected above the first robot motion shaft through a wire disc, and the extension direction of the second robot motion shaft is vertical to that of the first robot motion shaft; and the lower end of the second robot motion shaft is provided with a welding robot.

In an embodiment of the present invention, the welding robot system further includes: a gun cleaning device and a control cabinet; the gun cleaning device and the control cabinet are both arranged on the first robot motion shaft.

In an embodiment of the present invention, the number of the supporting columns is four, and four supporting columns are uniformly disposed below the first robot moving shaft at intervals.

In an embodiment of the present invention, the number of the second robot motion axes is two.

In an embodiment of the utility model, first machine of shifting contacts the position of ground rail is provided with the anticollision shirt rim.

In an embodiment of the present invention, the lifting driving device is a screw lifting mechanism with a T-shaped structure; the hydraulic balance mechanism uses four groups of balance oil cylinders.

In an embodiment of the present invention, the number of the driving mechanisms is two, and two of the driving mechanisms are respectively disposed at two ends of the gantry frame.

As above, planer-type weldment work station, following beneficial effect has:

(1) Compared with the prior art, the utility model discloses an automatic commodity circulation dolly will treat welding workpiece (this indicates the automobile body) and transport

When the workpiece to be welded is positioned at the corresponding working position to be welded, the positioner can be lifted, and the workpiece to be welded is automatically clamped after being separated from the logistics trolley; after the trolley exits from the working position, the gantry type welding workstation can automatically control the positioner to turn and shift, and then the welding robot enters the welding position to realize automatic welding of a planar weld on a workpiece to be welded.

(2) The utility model discloses a gantry type machine of shifting structure and automatic clamp get treat welding workpiece, have replaced current artifical clamping mode, have reduced workman intensity of labour, have improved welding operation efficiency.

(3) The automatic welding process does not need too much participation of workers, reduces the possibility of dangerous accidents in the welding process, and improves the safety and reliability of welding.

Drawings

Fig. 1 is a front view of a gantry welding station according to an embodiment of the present invention.

Fig. 2 is a left side view of the gantry welding station of the present invention in one embodiment.

Fig. 3 is a schematic structural diagram of the first positioner according to an embodiment of the present invention.

Fig. 4 is a schematic structural diagram of the welding robot system according to an embodiment of the present invention.

Fig. 5 is a schematic structural diagram of a gantry welding station according to an embodiment of the present invention.

Description of the element reference

1-a first positioner; 101-gantry frame; 102-a lifting drive; 103-a hydraulic balancing mechanism; 104-a lifting beam; 105-a flipping arm; 106-climbing a ladder; 107-fixing the clamp; 108-a drive mechanism; 109-ground rail; 110-crashproof skirts; 2-a second positioner; 3-a welding robotic system; 301-first robot motion axis; 302-a second robot motion axis; 303-supporting the column; 304-a silk plate frame; 305-a welding robot; 306-a gun cleaning device; 307-control cabinet; 4-logistics trolley.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be apparent to those skilled in the art from the disclosure herein.

It should be understood that the structures, ratios, sizes, etc. shown in the drawings attached to the present specification are only used for matching with the contents disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any modification of the structures, changes of the ratio relationship, or adjustment of the size should still fall within the scope that the technical contents disclosed in the present invention can cover without affecting the efficacy that the present invention can produce and the purpose that the present invention can achieve. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.

The utility model discloses a planer-type weldment work station is arranged in solving among the prior art problem that welding process workman intensity of labour is big, the operating efficiency is low. The principles and embodiments of a gantry welding station of the present invention will be described in detail below, so that those skilled in the art can understand the gantry welding station without creative work.

See fig. 1 through 5. Compared with the prior art, the gantry welding workstation provided by the embodiment has the advantages that the workpieces to be welded (the vehicle body) are conveyed to the corresponding working positions to be welded through the automatic logistics trolley, the positioner can be lifted, and the workpieces to be welded are automatically clamped after being separated from the logistics trolley; after the trolley exits from the working position, the gantry type welding workstation can automatically control the positioner to turn over and shift, and then a welding robot enters the welding position to automatically weld a planar weld on a workpiece to be welded; the gantry type positioner structure and the automatic clamping device can automatically clamp the workpiece to be welded, replace the existing manual clamping mode, reduce the labor intensity of workers and improve the welding operation efficiency; the automatic welding process does not need too much participation of workers, reduces the possibility of dangerous accidents in the welding process, and improves the safety and reliability of welding.

As shown in fig. 1 to 5, in an embodiment, the utility model discloses a gantry type welding workstation is applied to and realizes in the rail transit freight train vehicle automatic weld, including first machine of shifting 1, second machine of shifting 2, commodity circulation dolly 4 and welding robot system 3.

Specifically, the first positioner 1 and the second positioner 2 are arranged face to face and cross over a vehicle logistics channel; the material flow trolley 4 is positioned on the vehicle material flow channel and can freely pass through the vehicle material flow channel, and a workpiece to be welded (here, a vehicle body) is carried on the material flow trolley 4; the welding robot system 3 is arranged on the same side of the first positioner 1 and the second positioner 2 and is not connected with the first positioner 1 and the second positioner 2.

It should be noted that the work flow of the gantry welding workstation is as follows:

the cross beam of the first positioner 1 rises to avoid the passage of the vehicle body, the logistics trolley 4 transports the vehicle body from the outer side of the first positioner 1 into a position between the first positioner 1 and the second positioner 2, the first positioner 1 moves and forks to clamp the vehicle body, and the first positioner 1 and the second positioner 2 rise simultaneously to separate the vehicle body from the logistics trolley 4; the logistics trolley 4 exits the working interval; the first positioner 1 and the second positioner 2 are turned over for 90 degrees at the same time, and the welding seam on the side surface of the vehicle body is displaced to a horizontal position; the welding robot in the welding robot system 3 automatically welds; after welding is finished, the first positioner 1 and the second positioner 2 are turned over and reset simultaneously, the vehicle body falls onto the logistics trolley 4, and the clamp is loosened; the cross beam of the second positioner 2 rises to avoid the vehicle body to pass through, and the logistics trolley 4 transports the vehicle body out from one side of the second positioner 2.

The first positioner 1 and the second positioner 2 both comprise a gantry framework 101, a lifting driving device 102, a hydraulic balance mechanism 103, a lifting cross beam 104 and an L-shaped turnover arm 105.

Wherein, a ladder 106 is arranged on the side surface of the gantry frame 101; the upper end of the turning arm 105 is connected with the lifting beam 104, the tail end of the turning arm 105 is provided with a fixing clamp 107, and the fixing clamp 107 is used for clamping and fixing the vehicle body.

It should be noted that the tilt arm 105 can be tilted by ± 90 ° with respect to the lifting beam 104.

In an embodiment, the lifting driving device 102 is a screw lifting mechanism with a T-shaped structure, and the lifting driving device 102 is connected to the lifting beam 104 and is configured to servo-drive the lifting beam 104 to lift up and down, so as to drive the vehicle body to move up and down in the Z-axis direction.

Further, in order to ensure that the first positioner 1 and the second positioner 2 are driven synchronously, the lifting driving device 102 adopts a high-precision RV reducer + servo configuration.

In one embodiment, the hydraulic balance mechanism 103 uses four groups of balance cylinders, and the hydraulic balance mechanism 103 connects the lifting beam 104 to the gantry 101 through a chain and sprocket mechanism, so as to balance the external force of the lifting beam 104 and ensure that the lifting beam 104 is prevented from suddenly falling after the lifting drive device 102 fails.

Further, the first positioner 1 further comprises a driving mechanism 108 and a ground rail 109; wherein the driving mechanism 108 is connected with the gantry frame 101; the ground rail 109 is disposed below the gantry frame 101.

The drive mechanism 108 is a servo drive mechanism.

In an embodiment, the number of the driving mechanisms 108 is two, and the two driving mechanisms 108 are respectively disposed at two ends of the gantry frame 101 and are used for simultaneously driving the first positioner 1 to move.

In an embodiment, an anti-collision skirt 110 is arranged at a position where the first positioner 1 contacts the ground rail 109, and is used for protecting the first positioner 1, reducing damage to the first positioner caused by impact and protecting workers safely.

The first positioner 1 can travel along the traveling direction of the logistics trolley 4 and can drive the trolley body to lift and turn; the second positioner 2 is a fixed part and can drive the vehicle body to lift and turn over.

In one embodiment, the welding robot system 3 includes a first robot motion axis 301, a second robot motion axis 302, and a support column 303.

Specifically, the first robot motion axis 301 is arranged horizontally; the supporting upright column 303 is vertically arranged, the upper end of the supporting upright column 303 is connected with the lower end of the first robot movement shaft 301, and the lower end of the supporting upright column 303 is arranged on the ground; the second robot motion axis 302 is arranged above the first robot motion axis 301 through a wire reel frame 304, and the extending direction of the second robot motion axis 302 is perpendicular to the extending direction of the first robot motion axis 301; the lower end of the second robot movement axis 302 is mounted with a welding robot 305.

It should be noted that the first robot motion axis 301 and the second robot motion axis 302 form an XY coordinate system, wherein the first robot motion axis 301 is used as a Y axis, and the second robot motion axis 302 is used as an X axis, so as to drive the welding robot 305 to freely move in a horizontal plane, and perform vertical adjustment compensation in a small range, thereby achieving cover welding on a vehicle body plane.

In one embodiment, the welding robot system 3 further includes a gun cleaning device 306 and a control cabinet 307; the gun cleaning device 306 and the control cabinet 307 are both arranged on the first robot movement axis 301.

In one embodiment, the number of the supporting columns 303 is four, and four supporting columns 303 are uniformly arranged below the first robot movement axis 301 at intervals for stably supporting the welding robot system 3.

In an embodiment, the number of the second robot motion axes 302 is two, the number of the corresponding welding robots 304 is also two, and the two welding robots 305 are installed upside down on the lower end of the second robot motion axes 302.

It should be noted that, the gantry framework 101, the lifting driving device 102, the hydraulic balance mechanism 103, the driving mechanism 108, the wire coil frame 304 and the gun cleaning device 306 mentioned in the present invention are common structural features in the field, and the specific structural composition thereof is not limited to the conditions of the present invention, so that the specific structural composition and the connection relationship thereof are not described in detail herein.

To sum up, compared with the prior art, the gantry welding workstation of the utility model transports the workpieces to be welded (here, the car body) to the corresponding working positions to be welded through the automatic logistics trolley, the positioner can be lifted, and the workpieces to be welded are automatically clamped after being separated from the logistics trolley; after the trolley exits from the working position, the gantry type welding workstation can automatically control the positioner to turn over and shift, and then a welding robot enters the welding position to automatically weld a planar weld on a workpiece to be welded; the gantry type positioner is used for automatically clamping the workpieces to be welded, replaces the conventional manual clamping mode, reduces the labor intensity of workers and improves the welding operation efficiency; the automatic welding process does not need excessive participation of workers, reduces the possibility of dangerous accidents in the welding process and improves the safety and reliability of welding; therefore, the utility model effectively overcomes various defects in the prior art and has high industrial utilization value.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. A gantry welding station, comprising: the system comprises a first positioner, a second positioner, a logistics trolley and a welding robot system;

the first positioner and the second positioner are arranged face to face and span the vehicle logistics channel;

the logistics trolley is positioned on the vehicle logistics channel and is loaded with a workpiece to be welded;

the welding robot system is arranged on the same side of the first positioner and the second positioner;

the first positioner and the second positioner both comprise: the device comprises a gantry framework, a lifting driving device, a hydraulic balance mechanism, a lifting cross beam and a turnover arm of an L-shaped structure; wherein the content of the first and second substances,

a ladder stand is arranged on the side surface of the gantry framework;

the upper end of the turnover arm is connected with the lifting cross beam, and a fixed clamp is installed at the tail end of the turnover arm;

the hydraulic balance mechanism connects the lifting beam with the gantry framework through a chain and sprocket mechanism;

the lifting driving device is connected with the lifting cross beam;

the first positioner further comprises: a drive mechanism and a ground rail; wherein, the first and the second end of the pipe are connected with each other,

the driving mechanism is connected with the gantry framework;

the ground rail is arranged below the gantry framework.

2. The gantry welding workstation of claim 1, wherein the welding robotic system comprises: the robot comprises a first robot motion shaft, a second robot motion shaft and a bearing upright post;

the first robot motion axis is horizontally arranged;

the supporting upright column is vertically arranged, the upper end of the supporting upright column is connected with the lower end of the first robot motion shaft, and the lower end of the supporting upright column is arranged on the ground;

the second robot motion shaft is erected above the first robot motion shaft through a wire disc, and the extension direction of the second robot motion shaft is vertical to that of the first robot motion shaft; and the lower end of the second robot motion shaft is provided with a welding robot.

3. The gantry welding workstation of claim 2, wherein the welding robotic system further comprises: a gun cleaning device and a control cabinet; the gun cleaning device and the control cabinet are both arranged on the first robot motion shaft.

4. The gantry welding station of claim 2, wherein the number of support columns is four, and four of the support columns are spaced evenly below the first axis of robot motion.

5. The gantry welding station of claim 2, wherein the number of axes of motion of the second robot is two.

6. The gantry welding station of claim 1, wherein a crash skirt is provided at a location where the first positioner contacts the ground rail.

7. The gantry welding workstation of claim 1, wherein the elevation drive is a lead screw elevation mechanism of T-shaped configuration; the hydraulic balance mechanism uses four groups of balance oil cylinders.

8. The gantry welding station of claim 1, wherein the number of the driving mechanisms is two, and two driving mechanisms are respectively disposed at two ends of the gantry frame.