Gantry walking mechanism and welding device

Abstract

The utility model discloses a portal walking mechanism and welding equipment belongs to welding technical field. Including two tracks of being placed in the both sides of operation platform, and the walking assembly is slidably installed on the track, the portal frame is arranged above the operation platform, and the both sides support leg of portal frame is fixed on the walking assembly of corresponding side respectively, a vertical slide column is connected through servo module on the crossbeam of portal frame, and the welding support is fixed in vertical slide column lower extreme, and a plurality of welding assemblies are fixed on the welding support, and the welding assembly includes the seam camera and servo adjusting structure of being fixed on the welding support, and the execution end of servo adjusting structure is fixed with the welding torch. When operating, the portal frame is along with the welding assembly and moves along the carriage bottom plate, and through the cooperation of seam camera and servo adjusting structure, the welding of all welds on the carriage bottom plate can be realized in the walking of portal frame, reduces the welding frequency and workpiece adjustment frequency, improves production efficiency and reduces production cost.

Description

Technical Field

[0001] This utility model relates to the field of welding technology, specifically a gantry-type traveling mechanism and welding equipment. Background Technology

[0002] Welding of large workpieces is a common and critical production process, with the welding of trailer bed panels being a typical example. Current robotic welding equipment is ill-suited for welding trailer bed panels. This is because the effective working radius of the robotic arms in existing robotic welding equipment is limited, making it impossible to directly cover the entire weld seam of the bed panel. This necessitates multiple positioning and adjustments of the workpiece during the welding process, resulting in low efficiency. Alternatively, multiple machines can be used for segmented welding, but this significantly increases equipment costs and requires more floor space. Utility Model Content

[0003] The purpose of this invention is to provide a gantry-type traveling mechanism and welding equipment for welding long workpieces.

[0004] This utility model adopts the following technical solution: a gantry-type traveling mechanism, comprising: Two parallel tracks are placed on either side of the workbench; Two symmetrical walking components are slidably mounted on the two tracks, respectively; A gantry frame is positioned above the work platform; the two side legs of the gantry frame are respectively fixed to the corresponding walking components. The gantry has a horizontal sliding plate that slides horizontally on its crossbeam, and a vertical sliding column that slides vertically on the horizontal sliding plate. A horizontal drive motor for moving the horizontal sliding plate and a lifting drive motor for raising and lowering the vertical sliding column are fixed on the horizontal sliding plate.

[0005] Preferably, the walking component includes: The housing is fixed to the bottom of the legs of the gantry frame; Two wheels are rotatably mounted on the front and rear ends of the box and rolled on the track; Two guide wheel sets are fixed to the front and rear ends of the housing and clamped on both sides of the track; The drive motor is installed in the middle of the housing; The output end of the walking drive motor is fixed with a walking drive gear, and a walking rack is fixed on one side of the track. The walking drive gear meshes with the walking rack.

[0006] Preferably, the guide wheel assembly includes a guide seat fixed to the end of the housing; a fixed guide wheel is rotatably mounted on one side of the guide seat, and the fixed guide wheel presses against one side of the track; an adjusting block is hinged to the other side of the guide seat, and one end of the adjusting block is fixedly connected to the guide seat by bolts; a movable guide wheel is rotatably mounted on the adjusting block, and the movable guide wheel presses against the other side of the track.

[0007] Preferably, a pair of horizontal slide rails and a horizontal rack are fixed on the crossbeam of the gantry frame, with the horizontal rack arranged between the two horizontal slide rails; the side of the horizontal slide plate closest to the gantry frame is slidably mounted on the two horizontal slide rails; a horizontal drive gear is fixed to the output end of the horizontal drive motor, and the horizontal drive gear meshes with the horizontal rack.

[0008] Preferably, a telescopic dust cover is fixed to each end of the horizontal slide rail, and the other end of the telescopic dust cover is fixed to the horizontal slide plate.

[0009] Preferably, a pair of vertical slide rails and a vertical rack are fixed on the vertical slide column; the side of the horizontal slide plate closest to the vertical slide column is slidably mounted on the two vertical slide rails; a lifting drive gear is fixed to the output end of the lifting drive motor, and the lifting drive gear meshes with the vertical rack.

[0010] Preferably, two lubrication gears are installed on the horizontal slide plate, and the two lubrication gears mesh with the horizontal rack and the vertical rack respectively.

[0011] A welding device employs a gantry-type traveling mechanism, wherein a welding bracket is fixed to the lower end of the vertical sliding column, and multiple welding torches are fixed on the welding bracket.

[0012] Preferably, the welding torch is fixed to the welding bracket via a servo adjustment structure, and a seam-finding camera fixed to the welding bracket is provided in front of each welding torch; the seam-finding camera is used to detect the weld position on the workpiece to be welded, and the servo adjustment structure is used to automatically adjust the position of the welding torch according to the weld position fed back by the seam-finding camera.

[0013] Preferably, there are three or more welding torches, all of which are arranged in a direction perpendicular to the track; each welding torch has a pressure roller that is rotatably mounted on the welding bracket in front of it; during operation, the pressure roller presses on both sides of the weld seam on the workpiece to be welded.

[0014] The beneficial effects of this utility model are as follows: the gantry frame can move along the track with the welding components, thereby realizing the welding operation of long workpieces (such as the bottom plate of a trailer car body), overcoming the limitation of existing equipment that it is difficult to complete the welding of long weld seams in one go; the servo module can adjust the position of the welding components, enabling the welding components to adapt to workpieces of different shapes and sizes to be welded. The welding setup has multiple welding components. When the gantry moves along the car floor with the welding components, the welding can be completed in one pass of the gantry by the cooperation of the weld-finding camera and the servo adjustment structure. This reduces the number of welding operations and workpiece adjustments, improves production efficiency, and lowers production costs. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 A perspective view of a gantry-type traveling mechanism and welding equipment provided for an embodiment of this utility model.

[0017] Figure 2 A front view of a gantry-type traveling mechanism and welding equipment provided for an embodiment of this utility model.

[0018] Figure 3 for Figure 1 Enlarged view of the central walking component (the sealing plate on one side of the box is hidden in the picture).

[0019] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0020] Figure 5 This is a perspective view of the gantry and servo module components in this utility model.

[0021] Figure 6 for Figure 5 Three-dimensional structure of the horizontal sliding plate and vertical sliding column sections Figure 1 .

[0022] Figure 7 for Figure 5 Three-dimensional structure of the horizontal sliding plate and vertical sliding column sections Figure 2 .

[0023] Figure 8 This is a perspective view of the welding assembly in this utility model.

[0024] Figure 9 This is a front view of the welding assembly in this utility model.

[0025] Explanation of reference numerals in the attached figures: 1. Track; 2. Walking assembly; 21. Housing; 22. Walking wheels; 23. Guide wheel assembly; 231. Guide seat; 232. Fixed guide wheel; 233. Adjusting block; 234. Bolt; 235. Movable guide wheel; 24. Walking drive motor; 25. Walking drive gear; 26. Walking rack; 3. Gantry frame; 4. Horizontal sliding plate; 41. Horizontal drive motor; 42. Horizontal slide rail; 43. Horizontal rack; 44. Horizontal drive gear; 45. Telescopic dust cover; 5. Vertical sliding column; 51. Lifting drive motor; 52. Vertical slide rail; 53. Vertical rack; 54. Lifting drive gear; 55. Lubrication gear; 6. Welding bracket; 7. Welding torch; 8. Seam-finding camera; 9. Pressure roller. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around" and other terms indicating orientation or positional relationship are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0028] Example 1: like Figures 1 to 3 As shown, this utility model provides a gantry-type traveling mechanism, including two parallel tracks 1 placed on both sides of a worktable, which supports the workpiece to be welded. The crossbeam of the gantry frame 3 is located above the worktable, and the legs on both sides of the gantry frame 3 are respectively fixed to a traveling component 2, which is slidably mounted on the corresponding track 1. A vertical sliding column 5 is connected to the crossbeam of the gantry frame 3 via a servo module; under the action of the servo module, the vertical sliding column 5 can move up, down, left, and right relative to the gantry frame 3.

[0029] Combination Figures 1 to 4As shown, in this embodiment, the walking assembly 2 includes a housing 21, within which multiple horizontal and vertical partitions are fixed to improve the structural strength of the housing 21. A walking wheel 22 is rotatably mounted at each of the front and rear ends of the housing 21, and the walking wheels 22 are supported on the track 1. A vertically arranged walking drive motor 24 is fixed at the middle position inside the housing 21, and a walking drive gear 25 is fixed to the output end of the walking drive motor 24. A walking rack 26 is fixed to one side of the track 1, and the walking drive gear 25 meshes with the walking rack 26.

[0030] At each end of the housing 21, a guide wheel assembly 23 is fixed. The guide wheel assembly 23 includes a guide seat 231 fixed to the end of the housing 21. A fixed guide wheel 232 is rotatably mounted on the inner side of the guide seat 231, pressing against the inner side of the track 1. An adjusting block 233 is hinged to the outer side of the guide seat 231, with one end of the adjusting block 233 away from the hinge point connected to the guide seat 231 by a bolt 234. A movable guide wheel 235 is rotatably mounted on the adjusting block 233, pressing against the outer side of the track 1. By adjusting the bolt 234, the movable guide wheel 235 on the adjusting block 233 can be pressed tightly against the outer side of the track 1, causing the movable guide wheels 235 and the fixed guide wheels 232 on both sides to clamp the track 1, improving the stability of the traveling assembly 2.

[0031] During operation, the workpiece to be welded is supported on the workbench, and the welding assembly is fixed to the vertical sliding column 5. The travel drive motor 24 drives the travel assembly 2 and the gantry 3 to move along the track 1 through the travel drive gear 25 and the travel rack 26. The gantry 3 carries the welding assembly to move along the workpiece to be welded, and the welding of the workpiece to be welded is achieved through the welding assembly.

[0032] Example 2: Based on the above embodiment one, combined with Figures 4 to 6 As shown, this embodiment provides a servo module for controlling the vertical sliding column 5.

[0033] The servo module includes a pair of horizontal slide rails 42 fixed to the crossbeam of the gantry 3, and a horizontal rack 43 fixed in the middle of the two horizontal slide rails 42. Two sets of inner sliders are fixed to the inner side of the horizontal slide plate 4, and the inner sliders are slidably mounted on the corresponding horizontal slide rails 42. A horizontal drive motor 41 is vertically fixed to the horizontal slide plate 4, and the output end of the horizontal drive motor 41 passes through the horizontal slide plate 4. A horizontal drive gear 44 is fixed to the output end of the horizontal drive motor 41, and the horizontal drive gear 44 meshes with the horizontal rack 43. A telescopic dust cover 45 is fixed to each end of the horizontal slide rail 42, and the free end of the telescopic dust cover 45 is fixed to one side of the horizontal slide plate 4. When the horizontal slide plate 4 moves horizontally, it can automatically extend and retract the telescopic dust cover 45, so that the telescopic dust cover 45 covers the horizontal slide rails 42 and the horizontal rack 43, thus providing dust protection.

[0034] A pair of vertical slide rails 52 are fixed to one side of the vertical slide column 5 near the horizontal slide plate 4. Two sets of outer sliders are fixed to the outer side of the horizontal slide plate 4, and the outer sliders are slidably mounted on the corresponding vertical slide rails 52. A vertical rack 53 is fixed to the other side of the vertical slide column 5. A lifting drive motor 51 is fixed to the horizontal slide plate 4, and a lifting drive gear 54 is fixed to the output end of the lifting drive motor 51. The lifting drive gear 54 meshes with the vertical rack 53. Two lubrication gears 55 are installed on the horizontal slide plate 4. The two lubrication gears 55 mesh with the horizontal rack 43 and the vertical rack 53 respectively. The lubrication gears 55 are connected to a lubrication system. The lubrication system fills the internal oil passages of the lubrication gears 55, and the lubrication oil enters the meshing surfaces of the lubrication gears 55 with the horizontal rack 43 and the vertical rack 53 through the internal oil passages, thereby achieving oil distribution to the horizontal rack 43 and the vertical rack 53.

[0035] During operation, the horizontal drive motor 41 adjusts the left and right positions of the horizontal slide plate 4 and the vertical slide column 5 by using the horizontal drive gear 44 and the horizontal rack 43. The lifting drive gear 54 adjusts the up and down position of the vertical slide column 5 by using the lifting drive gear 54 and the vertical rack 53, thereby adjusting the position of the welding component at the bottom of the vertical slide column 5 to adapt to different workpieces to be welded.

[0036] Example 3: Based on the above-described embodiment two, combined with Figure 8 and Figure 9 As shown, this embodiment provides a welding device, including a welding bracket 6 fixed to the lower end of a vertical sliding column 5. The welding bracket 6 is a long frame structure. Two rows of welding components are fixed on the welding bracket 6. The number of welding torches can be adjusted according to requirements. In this embodiment, six welding components are provided, arranged in a two-in-front, four-in-back configuration.

[0037] The welding assembly includes a seam-finding camera 8 fixed on a welding bracket 6 and a servo adjustment structure. The actuating end of the servo adjustment structure is fixed with a welding torch 7, and the seam-finding camera 8 is located in front of the welding torch 7 in the direction of travel. A pressure roller 9 is provided in front of each welding torch 7 and seam-finding camera 8, and the pressure roller 9 is rotatably mounted on the welding bracket.

[0038] The position of the welding components is adjusted by the servo module so that the seam-finding camera 8 and the welding gun 7 are aligned vertically with each weld seam on the car floor. At this time, the pressure roller 9 presses on the weld seam on the car floor in front of the seam-finding camera 8, so that the car floor on both sides of the weld seam is flush, improving the overall flatness of the car floor after the weld seam. Then, the gantry 3 moves along the car floor with the welding components, and the weld-finding camera 8 detects the weld position on the car floor in real time and transmits the weld position information to the host computer. The host computer adjusts the position of the corresponding welding gun 7 through the servo adjustment structure according to the weld position information, so that the welding gun 7 can accurately complete the welding operation. The gantry 3 can complete the welding of all welds on the car floor in one trip, improving the welding efficiency of the car floor.

[0039] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A gantry-type traveling mechanism, characterized in that, include: Two parallel tracks are placed on either side of the workbench; Two symmetrical walking components are slidably mounted on the two tracks, respectively; A gantry frame is positioned above the work platform; the two side legs of the gantry frame are respectively fixed to the corresponding walking components. Among them, a horizontal sliding plate is horizontally slidably installed on the crossbeam of the gantry frame, and a vertical sliding column is vertically slidably installed on the horizontal sliding plate; a horizontal drive motor for driving the horizontal sliding plate to move is fixed on the horizontal sliding plate, and a lifting drive motor for driving the vertical sliding column to rise and fall. The walking component includes: The housing is fixed to the bottom of the legs of the gantry frame; Two wheels are rotatably mounted on the front and rear ends of the box and rolled on the track; Two guide wheel sets are fixed to the front and rear ends of the housing and clamped on both sides of the track; The drive motor is installed in the middle of the housing; The output end of the walking drive motor is fixed with a walking drive gear, and a walking rack is fixed on one side of the track. The walking drive gear meshes with the walking rack. The guide wheel assembly includes a guide seat fixed to the end of the housing; a fixed guide wheel is rotatably mounted on one side of the guide seat, and the fixed guide wheel presses against one side of the track; an adjusting block is hinged to the other side of the guide seat, and one end of the adjusting block is fixedly connected to the guide seat by bolts; a movable guide wheel is rotatably mounted on the adjusting block, and the movable guide wheel presses against the other side of the track.

2. The gantry-type traveling mechanism according to claim 1, characterized in that: A pair of horizontal slide rails and a horizontal rack are fixed on the crossbeam of the gantry frame, with the horizontal rack arranged between the two horizontal slide rails; the side of the horizontal slide plate closest to the gantry frame is slidably mounted on the two horizontal slide rails; a horizontal drive gear is fixed to the output end of the horizontal drive motor, and the horizontal drive gear meshes with the horizontal rack.

3. The gantry-type traveling mechanism according to claim 2, characterized in that: A telescopic dust cover is fixed to each end of the horizontal slide rail, and the other end of the telescopic dust cover is fixed to the horizontal slide plate.

4. A gantry-type traveling mechanism according to claim 2, characterized in that: A pair of vertical slide rails and a vertical rack are fixed on the vertical slide column; the side of the horizontal slide plate closest to the vertical slide column is slidably mounted on the two vertical slide rails; a lifting drive gear is fixed to the output end of the lifting drive motor, and the lifting drive gear meshes with the vertical rack.

5. A gantry-type traveling mechanism according to claim 4, characterized in that: Two lubrication gears are installed on the horizontal slide plate, and the two lubrication gears mesh with the horizontal rack and the vertical rack respectively.

6. A welding device, employing a gantry-type traveling mechanism as described in any one of claims 1 to 5, characterized in that: The lower end of the vertical sliding column is fixed with a welding bracket, and multiple welding guns are fixed on the welding bracket.

7. The welding equipment according to claim 6, characterized in that: The welding torch is fixed to the welding bracket via a servo adjustment structure, and a seam-finding camera fixed to the welding bracket is set in front of each welding torch; the seam-finding camera is used to detect the weld position on the workpiece to be welded, and the servo adjustment structure is used to automatically adjust the position of the welding torch according to the weld position fed back by the seam-finding camera.

8. The welding equipment according to claim 6, characterized in that: There are three or more welding torches, and all welding torches are arranged in a direction perpendicular to the track; Each welding torch has a pressure roller mounted on a welding bracket at the front; during operation, the pressure roller presses on both sides of the weld seam on the workpiece to be welded.

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