CN115716156A - Automatic workstation of fuel tank weldment welding part - Google Patents
Automatic workstation of fuel tank weldment welding part Download PDFInfo
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- CN115716156A CN115716156A CN202211479002.4A CN202211479002A CN115716156A CN 115716156 A CN115716156 A CN 115716156A CN 202211479002 A CN202211479002 A CN 202211479002A CN 115716156 A CN115716156 A CN 115716156A
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Abstract
The invention discloses an automatic workstation of a welding part of a fuel tank welding part, which comprises: the device comprises a welding robot unit, a positioning tool unit, a moving tool unit, a blanking unit, a transmission unit and a PLC (programmable logic controller), wherein the moving tool unit is used for alternately moving a workpiece between a welding station and a feeding and discharging station and moving the welded workpiece from the welding station to the feeding and discharging station; the welding robot unit is used for welding a workpiece at a welding station; the positioning tool unit is used for positioning the workpiece at a feeding and discharging station; the blanking unit is used for lifting and translating the welded workpiece from the feeding and discharging station to the transmission unit; the transmission unit is used for conveying the translated workpiece to the automatic workstation; the PLC controller is used for controlling the movement of the movable welding tongs of the welding robot unit in two mutually perpendicular directions so as to control the position of a welding point. The invention can realize the automation of the welding parts of the fuel tank welding piece and improve the working efficiency and the product quality.
Description
Technical Field
The invention belongs to the field of manufacturing processes of automobile metal fuel tanks, and particularly relates to an automatic workstation for welding parts of a metal fuel tank welding piece.
Background
At present, most welding of a welding piece of a fuel tank adopts the mode that an operator cooperates with a tool to weld parts through resistance welding, welding tongs are controlled to weld by manually positioning the welding piece and the parts of the fuel tank, the welding piece of the fuel tank is moved to control the position of a welding spot, and the fuel tank is manually carried to enter and exit the working procedure, so that the welding work is completed. The process has the following disadvantages: firstly, the automation degree is low, personnel are adopted to match with equipment for welding in the whole process, and the welding automation is zero; secondly, the flexibility is poor, and due to the fact that the appearance difference of the fuel tank is large, a replacement tool can be involved when the model is replaced; thirdly, the consistency of the product quality is low, welded parts are clamped by people, and the positions of the parts and welding points are not uniform; thirdly, the labor intensity of personnel is high, the average weight of the welded part is more than 10KG, the feeding and discharging are carried by manpower, and the personnel are hard; fourthly, the production beat is low, two employees are equipped in one process, and the beat still cannot reach the target (the target is 20 seconds); fifthly, more staff are provided, and two staff are provided in one process; sixthly, the potential safety hazard is more, and the man-machine is not separated in the operation process, so that the clamping injury, the scratch and the smashing injury are easy to happen.
Disclosure of Invention
The invention aims to provide an automatic workstation for welding parts of a fuel tank welding part, which can realize the automation of the welding parts of the fuel tank welding part and improve the working efficiency and the product quality.
One aspect of the present invention provides an automated workstation for welding fuel tank weldment work pieces, for welding workpieces comprised of fuel tank weldment work pieces and fuel tank weldment work pieces, comprising: the device comprises a welding robot unit, a positioning tool unit, a moving tool unit, a blanking unit, a transmission unit and a PLC (programmable logic controller);
the movable tool unit is used for alternately moving workpieces between a welding station and a feeding and discharging station and moving the welded workpieces to the feeding and discharging station from the welding station; the welding robot unit is used for welding a workpiece at the welding station; the positioning tool unit is used for positioning a workpiece at the feeding and discharging station; the blanking unit is arranged above the feeding and discharging station and used for lifting and translating the welded workpiece from the feeding and discharging station to the transmission unit; the transmission unit is used for conveying the translated workpiece out of the automatic workstation; the PLC is used for controlling the welding robot unit and the movable tool unit;
the welding robot unit comprises a movable welding tongs which can move in two mutually perpendicular directions, the movable welding tongs is used for welding a workpiece, and the PLC is used for controlling the movement of the movable welding tongs in the two mutually perpendicular directions so as to control the position of a welding point.
Preferably, the two mutually perpendicular directions are an X-axis direction and a Y-axis direction, the welding robot unit further includes an X-axis guide rail in the X-axis direction, an X-axis servo motor, a Y-axis guide rail in the Y-axis direction, and a Y-axis servo motor, and the X-axis servo motor and the Y-axis servo motor are respectively used for pushing the movable welding tongs to move on the X-axis guide rail and the Y-axis guide rail under the control of the PLC controller, so as to control the welding spot position.
Preferably, the number of the movable welding tongs, the number of the X-axis guide rail, the number of the X-axis servo motor, the number of the Y-axis guide rail and the number of the Y-axis servo motor are respectively 4, and the welding of 4 workpieces can be simultaneously carried out under the control of the PLC.
Preferably, location frock unit includes that the profile modeling supports and the locating pin pole, the profile modeling supports the profile that is used for fuel tank seam piece and supports, the locating pin pole is used for carrying out the relative position location to fuel tank seam piece and part.
Preferably, the positioning tool unit further comprises a bottom plate, and the profiling support and the positioning pin rod are fixed on the bottom plate.
Preferably, the movable tool unit comprises a movable tool and a movable rail, the movable tool is placed on the movable rail and can move on the movable rail under the control of the PLC, and therefore the workpiece is moved alternately between the welding station and the feeding and discharging station.
Preferably, the unloading unit includes lifting machine, translation robot and electro-magnet, the electro-magnet is installed lifting machine downside for absorb the work piece, lifting machine installs feed and discharge station top is used for promoting by the work piece that the electro-magnet was absorbed, translation robot installs lifting machine is last, is used for with promoting the work piece translation that comes up to the transmission unit is last.
Preferably, the blanking unit further comprises a falling-proof net protecting grid, and the falling-proof net protecting grid is installed on the lower side of the translation robot and used for preventing the workpiece from falling off in the translation process of the translation robot.
Preferably, the business turn over material station has 2, location frock unit, removal frock unit, unloading unit include 2 respectively.
Preferably, the transmission unit comprises a high-position conveyor belt and a low-position conveyor belt, the high-position conveyor belt is used for conveying the workpieces out of the automatic workstation, and the low-position conveyor belt is used for conveying the workpieces into the feeding and discharging station.
According to the automatic workstation for the welding part of the fuel tank welding part, the automation of workpiece filling, clamping, welding and transportation can be realized, and the automatic workstation has the advantages of high automation degree, good flexibility, high product quality consistency, low labor intensity of personnel, high working efficiency/production rhythm, small personnel number, small potential safety hazard of stations and the like.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly introduced, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts:
FIG. 1 is a schematic diagram of an automated workstation for welding parts of a fuel tank assembly in accordance with one embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a mobile tool unit according to an embodiment of the present invention.
Fig. 3 is a schematic structural view of a welding robot unit according to an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a positioning tool unit according to an embodiment of the present invention.
Fig. 5 is a schematic structural view of a blanking unit according to an embodiment of the present invention.
Fig. 6 is a schematic structural diagram of a transmission unit according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, 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 derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the invention provides an automatic workstation for welding parts of a welding part of a fuel tank. The automated workstation of embodiments of the present invention is suitable for use in welding components of fuel tank assemblies, such as resistance welds, such as reinforcement plates, and the like. For convenience of description, the fuel tank assembly and the component are collectively referred to as a workpiece, and the automated workstation according to the embodiment of the present invention performs welding on the workpiece including the fuel tank assembly and the component.
FIG. 1 is a schematic diagram of an automated workstation for welding parts of a fuel tank assembly in accordance with one embodiment of the present invention. As shown in fig. 1, the automated workstation for welding components of a fuel tank welding component according to an embodiment of the present invention is used for welding a workpiece composed of a fuel tank welding component and components, and includes a welding robot unit 1, a positioning tool unit 2, a moving tool unit 3, a blanking unit 4, a transmission unit 5, and a PLC controller (programmable logic controller) (not shown in the figure).
The welding robot unit 1, the positioning tool unit 2, the moving tool unit 3, the blanking unit 4, and the transfer unit 5 will be described in detail below.
1. Movable tool unit
Fig. 2 is a schematic structural diagram of a mobile tooling unit according to an embodiment of the present invention. With reference to fig. 1 and 2, the moving tooling unit 3 is used for alternately moving the workpiece between the welding station and the feeding and discharging station, and moving the welded workpiece from the welding station to the feeding and discharging station. In the embodiment of fig. 2, the station (2) is a welding station for performing welding operation, and the stations (1) and (3) are feeding and discharging stations for performing feeding and discharging operations, where feeding (filling) of the workpiece before welding is performed and discharging (taking) of the workpiece after welding is performed. The movable tool unit 3 comprises a movable tool 31 and a movable rail 32, wherein the movable tool 31 is placed on the movable rail 32 and can move left and right on the movable rail 32 under the control of the PLC, so that the workpiece is moved alternately between a welding station and a feeding and discharging station, and the workpiece is welded and fed and discharged alternately.
The feeding and discharging stations can be set to be one, or can be set to be two as shown in fig. 2, and under the condition of setting to be two, correspondingly, the moving tool unit 2 comprises 2, the left moving tool 31 can alternately move at the stations (1) and (2), and the right moving tool 31 can alternately move at the stations (2) and (3), so that the simultaneous operation of filling/taking and welding can be realized, and the production efficiency/rhythm is improved. The moving tool 31 can be preferably driven to move on the moving track 32 by controlling a servo motor through a PLC controller.
2. Welding robot unit
The welding robot unit 1 is used to weld a workpiece at a welding station. Fig. 3 is a schematic structural view of a welding robot unit according to an embodiment of the present invention. As shown in fig. 3, the welding robot unit 1 includes a movable electrode holder 11 for performing a welding operation on a workpiece. The mobile welding tongs 11 can be moved in two mutually perpendicular directions. In the embodiment of fig. 3, the two mutually perpendicular directions are an X-axis direction and a Y-axis direction, and the welding robot unit 1 further includes an X-axis guide rail 12 in the X-axis direction, an X-axis servo motor 13, a Y-axis guide rail 14 in the Y-axis direction, and a Y-axis servo motor 15. The X-axis guide rail 12, the X-axis servomotor 13, the Y-axis guide rail 14, and the Y-axis servomotor 15 may be fixed on the skeleton of the welding robot unit 2.
The movable welding tongs 11 is used for welding parts to a fuel tank welding piece, the PLC is used for controlling the movable welding tongs 11, the X-axis servo motor 13 and the Y-axis servo motor 15, and the X-axis servo motor 13 and the Y-axis servo motor 15 are respectively used for pushing the movable welding tongs 11 to move on the X-axis guide rail 12 and the Y-axis guide rail 14 under the control of the PLC, so that the welding point position is controlled.
In the embodiment of fig. 3, there are 4 movable welding tongs 11, X-axis guide rail 12, X-axis servo motor 13, Y-axis guide rail 14 and Y-axis servo motor 15, respectively, to form 4 sets of welding units, which can weld 4 workpieces at the same time under the control of the PLC controller, so as to improve the production efficiency/tact.
In the operation process, a workpiece is fixed, each movable welding tongs 11 slides on the X-axis guide rail 12 and the Y-axis guide rail 14 through the pushing of the X-axis servo motor 13 and the Y-axis servo motor 15, the positions of the movable welding tongs in the X-axis direction and the Y-axis direction are accurately controlled, and the PLC controller is used for controlling the movable welding tongs 11 to be closed, electrified and disconnected, so that the welding is completed.
3. Positioning tool unit
The positioning tool unit 2 is used for positioning the workpiece at the feeding and discharging station, and positioning the fuel tank welding piece and the part before welding so as to ensure the welding precision of subsequent welding operation. Fig. 4 is a schematic structural diagram of a positioning tool unit according to an embodiment of the present invention. As shown in fig. 4, the positioning tool unit 2 comprises a profiling support 21 and a positioning pin rod 23, wherein the profiling support 21 is used for supporting the profile of the welding surface of the fuel tank before welding, so that incorrect welding position caused by too large swinging of the welding piece of the fuel tank is prevented, and the position between the welding piece of the fuel tank and a part is accurately positioned. The locating pin 23 is used for locating the relative position of the fuel tank seam piece and the part, and the position location is accurately reinforced by the profiling support 21. The positioning pin rod 23 and the profiling support 21 can be replaced according to different types of fuel tank products, and flexibility is better.
In the embodiment of fig. 4, the positioning tool unit 2 further includes a bottom plate 22, the bottom plate 22 is used for installing the profiling support 21 and the positioning pin 23, and is a working platform of the positioning tool unit 2, and the profiling support 21 and the positioning pin 23 are fixed on the bottom plate 22.
4. Blanking unit
And the blanking unit 4 is arranged above the feeding and discharging station and used for lifting and translating the welded workpiece from the feeding and discharging station to the transmission unit 5. Fig. 5 is a schematic structural view of a blanking unit according to an embodiment of the present invention. Fig. 5 is a front view of the discharging unit 4 on the left side, and a left view of the discharging unit 4 on the right side. As shown in fig. 5, the blanking unit 4 includes a lifting mechanism 41, a translation robot 42, and an electromagnet 43.
An electromagnet 43 is mounted on the underside of the lifting mechanism 41 for picking up the work piece. The lifting mechanism 41 is installed above the feeding and discharging stations ((1) and (3)) and used for lifting the workpiece sucked by the electromagnet 43. A translation robot 42 is vertically mounted to the lifting mechanism 41 for translating the lifted workpiece to the transfer unit 5. After the welding is completed, the workpiece is stopped at the predetermined positions of the stations (1) and (3), the lifting mechanism 41 sucks the workpiece by the electromagnet 43 and lifts the workpiece to the predetermined positions, the transfer robot 42 moves above the transfer unit 5, and the electromagnet 43 is released, thereby transferring the workpiece to the transfer unit 5.
In the embodiment of fig. 5, the blanking unit 4 further comprises a fall protection grid 44, and the fall protection grid 44 is mounted on the underside of the translating robot 42 for preventing the workpiece from accidentally falling to hurt the person during the translation.
5. Transmission unit
Fig. 6 is a schematic structural diagram of a transmission unit according to an embodiment of the present invention. As shown in fig. 6, the transfer unit 5 is used for conveying the workpiece transferred by the translation robot 42 of the blanking unit 4 out of the automated workstation according to the embodiment of the present invention. The transmission unit 5 comprises an upper layer of conveyor belt and a lower layer of conveyor belt, the upper layer is a high-position conveyor belt 51 which is a discharge conveyor belt, the translation robot 42 moves the workpiece to the position above the high-position conveyor belt 51 of the transmission unit 5, the electromagnet 43 is loosened, and the workpiece is conveyed to the next working procedure by the high-position conveyor belt 51. The lower level is a lower conveyor 52, which is a feed conveyor, and transports the work piece from the previous process to the feed and discharge station for subsequent welding operations. The transfer unit 5 can efficiently perform feeding and discharging of workpieces, and efficiently utilize space.
In summary, the automatic workstation for the welding part of the fuel tank welding piece in the embodiment of the invention realizes the automation of product filling, clamping, welding and transportation by effectively connecting 5 units of the welding robot unit, the positioning tool unit, the moving tool unit, the blanking unit and the transmission unit, has the advantages of high automation degree, good flexibility, high product quality consistency, low labor intensity of personnel, high working efficiency/production rhythm, less personnel number, less potential safety hazard of stations and the like, and provides technical reserve for the automatic production of the fuel tank.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.
Claims (10)
1. An automated workstation for welding fuel tank weldment weld parts for welding workpieces comprised of fuel tank weldment and parts, comprising: the device comprises a welding robot unit, a positioning tool unit, a moving tool unit, a blanking unit, a transmission unit and a PLC (programmable logic controller);
the movable tool unit is used for alternately moving workpieces between a welding station and a feeding and discharging station and moving the welded workpieces to the feeding and discharging station from the welding station; the welding robot unit is used for welding a workpiece at the welding station; the positioning tool unit is used for positioning a workpiece at the feeding and discharging station; the blanking unit is arranged above the feeding and discharging station and used for lifting and translating the welded workpiece from the feeding and discharging station to the transmission unit; the transmission unit is used for conveying the translated workpiece out of the automatic workstation; the PLC is used for controlling the welding robot unit and the movable tool unit;
the welding robot unit comprises a movable welding tongs which can move in two mutually perpendicular directions, the movable welding tongs is used for welding a workpiece, and the PLC is used for controlling the movement of the movable welding tongs in the two mutually perpendicular directions so as to control the position of a welding point.
2. The automated workstation of claim 1, wherein the two mutually perpendicular directions are an X-axis direction and a Y-axis direction, the welding robotic unit further comprises an X-axis guide rail in the X-axis direction, an X-axis servo motor, a Y-axis guide rail in the Y-axis direction, and a Y-axis servo motor, the X-axis servo motor and the Y-axis servo motor being respectively configured to move the movable welding tongs on the X-axis guide rail and the Y-axis guide rail under the control of the PLC controller, thereby controlling the welding spot position.
3. The automated workstation of claim 2, wherein there are 4 of said moving electrode holder, X-axis guide rail, X-axis servo motor, Y-axis guide rail and Y-axis servo motor, respectively, capable of simultaneously welding 4 workpieces under the control of said PLC controller.
4. The automated workstation of any one of claims 1-3, wherein the positioning tooling unit comprises a profiling support for supporting the profile of the fuel tank weldment and a locating pin rod for locating the relative position of the fuel tank weldment and the part.
5. The automated workstation of claim 4, wherein the positioning tooling unit further comprises a base plate to which the profiling support and the locating pin are secured.
6. The automated workstation of any one of claims 1-5, wherein the mobile tooling unit comprises a mobile tooling and a mobile track, the mobile tooling being placed on the mobile track and being capable of moving on the mobile track under control of the PLC controller to alternately move workpieces between a welding station and a feeding and discharging station.
7. The automated workstation of any one of claims 1 to 6, wherein the blanking unit comprises a lifting mechanism, a translation robot and an electromagnet, the electromagnet is mounted on the underside of the lifting mechanism for picking up a workpiece, the lifting mechanism is mounted above the infeed and outfeed station for lifting the workpiece picked up by the electromagnet, and the translation robot is mounted on the lifting mechanism for translating the lifted workpiece onto the transfer unit.
8. The automated workstation of claim 7, wherein the blanking unit further comprises a fall protection fence mounted on an underside of the translation robot for preventing workpieces from falling during translation by the translation robot.
9. The automated working station of any one of claims 1 to 8, wherein there are 2 feeding and discharging stations, and the positioning tooling unit, the moving tooling unit and the blanking unit comprise 2 units respectively.
10. The automated workstation of any one of claims 1-9, wherein the transport unit comprises an upper conveyor for transporting workpieces out of the automated workstation and a lower conveyor for transporting workpieces into the infeed and outfeed stations.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211479002.4A CN115716156A (en) | 2022-11-23 | 2022-11-23 | Automatic workstation of fuel tank weldment welding part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211479002.4A CN115716156A (en) | 2022-11-23 | 2022-11-23 | Automatic workstation of fuel tank weldment welding part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115716156A true CN115716156A (en) | 2023-02-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211479002.4A Pending CN115716156A (en) | 2022-11-23 | 2022-11-23 | Automatic workstation of fuel tank weldment welding part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115716156A (en) |
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2022
- 2022-11-23 CN CN202211479002.4A patent/CN115716156A/en active Pending
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