Fixed base device for welding robot

Abstract

The utility model discloses a fixed base device for a welding robot, which comprises a base station, a lifting mechanism arranged at the bottom end of the base station, a wheel set arranged on the side surface of the base station, and a rotation limiting component arranged at the top end of the base station, the rotating limiting assembly comprises a first locking pin assembly fixed to the top end of the base table and a rotating base, a first rotating base is hinged to the rotating base, a plurality of first locking holes are evenly formed in the top end of the first rotating base in the circumferential direction, a second locking pin assembly is arranged at the top end of the first rotating base, and a limiting groove is formed in the middle of the first rotating base. A rotating shaft is transversely arranged in the middle of the limiting groove, a second rotating base is hinged to the rotating shaft, a mounting base is arranged on the outer side of the second rotating base, and a plurality of second locking holes are evenly formed in the end, close to the second locking pin assembly, of the second rotating base in the circumferential direction; the welding robot is simple in structure, convenient to disassemble and assemble and wide in application range, and the problem that an existing welding robot shakes in the welding process is greatly solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of welding robots, and in particular relates to a fixing base device for a welding robot. Background Art

[0002] In modern industry, industrial robots are man-made machine devices that can perform tasks automatically. Welding robots are industrial robots that perform welding work. Welding robots can replace or assist human welding work. Welding robots have been widely used in the automotive manufacturing industry, such as welding of automobile chassis, seat frames, guide rails, mufflers, and torque converters, especially in automobile chassis welding production.

[0003] In the prior art, a rotating mechanism is usually added to the base of the welding robot to enable the workpiece to rotate at any angle to solve the problem of dead angles in the welding process of the welding robot. However, the rotating mechanism will rotate to a certain extent during the welding process, causing the welding robot to shake slightly during the processing, affecting the welding quality. In summary, there is an urgent need for a welding robot base device that can limit the rotating mechanism to solve the problem of shaking in the welding of the existing welding robot, thereby improving the stability and welding quality of the welding robot during the welding process. Utility Model Content

[0004] In order to solve some or all of the technical problems existing in the above-mentioned prior art, the utility model provides a fixed base device for a welding robot, comprising a base, a lifting mechanism arranged at the bottom end of the base, and a wheel set arranged on the side of the base, wherein:

[0005] A rotation limit assembly is provided at the top of the base, and the rotation limit assembly includes a first locking pin assembly fixed to the top of the base and a rotating base, a first rotating base is hinged on the rotating base, a plurality of first locking holes are evenly opened along the circumferential direction at the top of the first rotating base, a second locking pin assembly is provided at the top of the first rotating base, a limiting groove is provided in the middle of the first rotating base, a rotating shaft is horizontally provided in the middle of the limiting groove, a second rotating base is hinged on the rotating shaft, a mounting seat is provided on the outer side of the second rotating base, and a plurality of second locking holes are evenly opened along the circumferential direction at one end of the second rotating base close to the second locking pin assembly.

[0006] As a specific embodiment, in the above-mentioned fixed base device for a welding robot, the first locking pin assembly includes a first fixed rod and a second fixed rod fixed to the top of the base, a rotator is hinged in the middle of the first fixed rod, a sliding groove is opened on the side of the second fixed rod, a slider is slidably connected in the sliding groove, a connecting rod is slidably connected in the rotator, a first locking pin is vertically arranged at one end of the connecting rod, and the other end is slidably connected to the slider.

[0007] Furthermore, in the above-mentioned fixed base device for a welding robot, a straight-line distance between the first fixed rod and the second fixed rod is greater than a straight-line distance between the first locking pin and the rotator.

[0008] As a specific implementation, in the above-mentioned fixed base device for a welding robot, the second locking pin assembly includes a fixed block fixed above the first rotating base, and a second locking pin slidably connected to the fixed block.

[0009] Furthermore, in the above-mentioned fixed base device for a welding robot, the outer diameter of the first locking pin matches the inner diameter of the first locking hole, and the outer diameter of the second locking pin matches the inner diameter of the second locking hole.

[0010] Furthermore, in the above-mentioned fixed base device for a welding robot, the width of the second rotating base and the width of the mounting seat both match the width of the limiting groove.

[0011] As a specific implementation, in the above-mentioned fixed base device for a welding robot, the lifting mechanism includes a storage groove opened below the base, and a lifting top plate whose shape matches the contour of the storage groove, and the lifting top plate is connected to the bottom of the base through a hydraulic cylinder.

[0012] As a specific implementation, in the above-mentioned fixed base device for a welding robot, the slider is connected to a driving motor.

[0013] As a specific implementation, in the above-mentioned fixed base device for a welding robot, the wheel set includes two pairs of moving wheels symmetrically distributed on the side surfaces of the base.

[0014] Furthermore, in the above-mentioned fixed base device for a welding robot, a plurality of threaded holes are provided on the mounting base.

[0015] The fixed base device for a welding robot of the utility model has the following advantages and beneficial effects:

[0016] The device has a simple structure and is easy to assemble and disassemble. It limits the horizontal and vertical directions of the rotating mechanism of the welding robot by rotating the limit assembly, which greatly solves the shaking problem of the existing welding robot and improves the stability and welding quality of the welding robot during the welding process. The position distribution of the first locking hole and the position distribution of the second locking hole can also be designed according to different models of welding robots and different welding conditions. It has good practicality. The device can flexibly adjust the horizontal and vertical displacements of the welding robot through the moving wheels and the lifting mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the embodiments or the prior art descriptions. Obviously, the drawings in the following descriptions are only used to further understand the embodiments of the utility model and constitute a part of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0018] Figure 1 It is a structural schematic diagram of a fixed base device for a welding robot of the utility model;

[0019] Figure 2 It is a structural schematic diagram of a first locking pin assembly in a fixed base device for a welding robot of the utility model;

[0020] Figure 3 It is a structural schematic diagram of a lifting mechanism in a fixed base device for a welding robot of the utility model;

[0021] Figure 4 It is a structural schematic diagram of a second rotating base in a fixed base device for a welding robot of the utility model.

[0022] Description of reference numerals:

[0023] 1-base, 2-lifting mechanism, 21-storage slot, 22-lifting top plate, 23-hydraulic cylinder, 3-wheel set, 4-rotation limit assembly, 5-first locking pin assembly, 51-first fixed rod, 52-second fixed rod, 53-rotator, 54-slide, 55-slider, 56-connecting rod, 57-first locking pin, 6-second locking pin assembly, 61-fixed block, 62-second locking pin, 7-rotating base, 8-first rotating base, 81-first locking hole, 82-limiting slot, 9-second rotating base, 91-second locking hole, 92-mounting seat, 93-threaded hole. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in combination with the specific embodiments of the utility model and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the utility model.

[0025] like Figures 1 to 4 As shown, the fixed base device for a welding robot of the utility model comprises a base 1, a lifting mechanism 2 arranged at the bottom end of the base 1, and a wheel group 3 arranged on the side of the base 1, wherein a rotation limit assembly 4 is arranged at the top of the base 1, and the rotation limit assembly 4 comprises a first locking pin assembly 5 fixed to the top of the base 1, and a rotating base 7, a first rotating base 8 is hinged on the rotating base 7, a plurality of first locking holes 81 are evenly opened along the circumferential direction at the top of the first rotating base 8, a second locking pin assembly 6 is arranged at the top of the first rotating base 8, a limiting groove 82 is opened in the middle of the first rotating base 8, a rotating shaft is horizontally arranged in the middle of the limiting groove 82, a second rotating base 9 is hinged on the rotating shaft, a mounting seat 92 is arranged on the outer side of the second rotating base 9, and a plurality of second locking holes 91 are evenly opened along the circumferential direction at one end of the second rotating base 9 close to the second locking pin assembly 6.

[0026] As a specific embodiment, in the fixed base device for a welding robot of the utility model, the first locking pin assembly 5 includes a first fixed rod 51 and a second fixed rod 52 fixed to the top of the base 1, a rotator 53 is hinged in the middle of the first fixed rod 51, and a slide groove 54 is opened on the side of the second fixed rod 52, a slider 55 is slidably connected in the slide groove 54, a connecting rod 56 is slidably connected in the rotator 53, one end of the connecting rod 56 is vertically provided with a first locking pin 57, and the other end is slidably connected to the slider 55. In this way, when the slider 55 moves upward along the slide groove 54, the connecting rod 56 moves upward away from one end of the first locking pin 57, thereby driving the rotator 53 to rotate forward, and the first locking pin 57 moves downward, and when the slider 55 moves downward along the slide groove 54, the connecting rod 56 moves downward away from one end of the first locking pin 57, thereby driving the rotator 53 to rotate in the opposite direction, and the first locking pin 57 moves upward.

[0027] Furthermore, in the fixed base device for a welding robot of the utility model, the straight-line distance between the first fixed rod 51 and the second fixed rod 52 is greater than the straight-line distance between the first locking pin 57 and the rotator 53. Such a setting facilitates more precise adjustment of the displacement amplitude of the first locking pin 57, thereby effectively improving the stability of the first locking pin 57 and the first locking hole 81 when they are mating.

[0028] As a specific implementation, in the fixed base device for a welding robot of the present utility model, the second locking pin assembly 6 includes a fixed block 61 fixed above the first rotating base 8 and a second locking pin 62 slidably connected to the fixed block 61 .

[0029] Furthermore, in the fixed base device for the welding robot of the utility model, the outer diameter of the first locking pin 57 matches the inner diameter of the first locking hole 81, and the outer diameter of the second locking pin 62 matches the inner diameter of the second locking hole 91. In this way, the first locking pin 57 is inserted into the first locking hole 81 to limit the horizontal rotation angle of the welding robot, and the second locking pin 62 is inserted into the second locking hole 91 to limit the vertical rotation angle of the welding robot.

[0030] Furthermore, in the fixed base device for the welding robot of the utility model, the width of the second rotating base 9 and the width of the mounting seat 92 are both matched with the width of the limiting groove 82. Such a setting prevents the limiting groove 82 from blocking the rotation of the mounting seat 92 during the positioning process of the vertical rotation angle of the welding robot, thereby improving the rotation smoothness of the mounting seat 92.

[0031] As a specific embodiment, in the fixed base device for a welding robot of the utility model, the lifting mechanism 2 includes a storage groove 21 opened below the base 1, and a lifting top plate 22 whose shape matches the contour of the storage groove 21. The lifting top plate 22 is connected to the bottom of the base 1 through a hydraulic cylinder 23. In this way, when the hydraulic cylinder 23 contracts, it drives the lifting top plate 22 to move upward until the lifting top plate 22 is completely fitted into the storage groove 21. Conversely, the base 1 moves downward, and when the hydraulic cylinder 23 extends, it drives the lifting top plate 22 to move downward until the lifting top plate 22 touches the bottom. At this time, the hydraulic cylinder 23 continues to extend, and the base 1 moves upward relative to the lifting top plate 22. The base 1 can be displaced in the vertical direction through the adjustment of the lifting mechanism 2.

[0032] As a specific implementation, in the fixed base device for a welding robot of the present invention, the slider 55 is connected to a driving motor. With such an arrangement, the slider 55 can be driven by the driving motor to move vertically along the slide groove 54 .

[0033] As a specific implementation, in the fixed base device for a welding robot of the present invention, the wheel set 3 includes two pairs of symmetrically distributed moving wheels located on the side of the base 1, so that the base 1 can be horizontally displaced by the moving wheels.

[0034] Furthermore, in the fixed base device for a welding robot of the utility model, a plurality of threaded holes 93 are provided on the mounting seat 92, and the welding robot is threadedly connected to the mounting seat 92 by fasteners. The layout of the plurality of threaded holes 93 on the mounting seat 92 is designed according to the model of the welding robot in actual use requirements. Of course, the welding robot can also be connected to the mounting seat 92 by other connection methods such as welding and riveting, as long as the mounting seat 92 plays a fixed supporting role for the welding robot.

[0035] The method for using the fixed base device for the welding robot of the utility model is as follows: first, the welding robot is fixed on the mounting seat 92, the position of the slider 55 is adjusted to be below the slide groove 54, the second locking pin 62 is separated from the second rotating base 9 by a certain distance, and then the base 1 is moved to the vicinity of the workpiece by the moving wheel, and the base 1 is adjusted to move vertically to a specified position by the lifting mechanism 2, and then the first rotating base 8 is adjusted by the rotating base 7 according to actual use requirements to drive the second rotating base 9 and the welding robot on the mounting seat 92 to rotate horizontally to a preset angle, so that the slider 55 moves along the slide groove 54, and the second locking pin 62 is separated from the second rotating base 9 by a certain distance. The slot 54 moves upward, and the connecting rod 56 rotates forward around the first fixed rod 51 through the rotator 53, so that the first locking pin 57 is inserted into the corresponding first locking hole 81 below, thereby achieving a locking and limiting effect on the first rotating base 8; then, according to actual use requirements, the second rotating base 9 is rotated and adjusted to drive the welding robot on the mounting base 92 to rotate vertically to a preset angle, and then the second locking pin 62 in the fixed block 61 is pushed, so that the second locking pin 62 is inserted into the corresponding second locking hole 91, thereby achieving a locking and limiting effect on the second rotating base 9, and completing the base fixation of the welding robot.

[0036] In summary, compared with the prior art, the fixed base device for a welding robot of the utility model has the following advantages and beneficial effects:

[0037] The device has a simple structure and is easy to assemble and disassemble. It can limit the horizontal and vertical directions of the rotating mechanism of the welding robot by rotating the limit assembly 4, which greatly solves the shaking problem of the existing welding robot and improves the stability and welding quality of the welding robot during welding. The position distribution of the first locking hole 81 and the position distribution of the second locking hole 91 can also be designed according to different types of welding robots and different welding conditions. It has good practicality. The device can flexibly adjust the horizontal and vertical displacements of the welding robot through the moving wheels and the lifting mechanism 2.

[0038] It should be noted that, in this article, unless otherwise clearly specified and limited, the term "connection" or its synonyms should be understood in a broad sense. For example, "connection" can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances. Moreover, expressions such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. At the same time, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such a process, method, article or device. In addition, "front", "back", "left", "right", "upper", "lower" and the like in this article are all referenced to the placement state shown in the accompanying drawings.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features therein may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A fixed base device for a welding robot, characterized in that: The fixed base device for the welding robot comprises a base, a lifting mechanism arranged at the bottom end of the base, and a wheel set arranged at the side of the base, wherein: A rotation limit assembly is provided at the top of the base, and the rotation limit assembly includes a first locking pin assembly fixed to the top of the base and a rotating base, a first rotating base is hinged on the rotating base, a plurality of first locking holes are evenly opened along the circumferential direction at the top of the first rotating base, a second locking pin assembly is provided at the top of the first rotating base, a limiting groove is provided in the middle of the first rotating base, a rotating shaft is horizontally provided in the middle of the limiting groove, a second rotating base is hinged on the rotating shaft, a mounting seat is provided on the outer side of the second rotating base, and a plurality of second locking holes are evenly opened along the circumferential direction at one end of the second rotating base close to the second locking pin assembly.

2. The fixed base device for a welding robot according to claim 1, characterized in that: The first locking pin assembly includes a first fixed rod and a second fixed rod fixed to the top of the base, a rotator is hinged in the middle of the first fixed rod, a sliding groove is opened on the side of the second fixed rod, a slider is slidably connected in the sliding groove, a connecting rod is slidably connected in the rotator, a first locking pin is vertically arranged at one end of the connecting rod, and the other end is slidably connected to the slider.

3. The fixed base device for a welding robot according to claim 2, characterized in that: A straight-line distance between the first fixing rod and the second fixing rod is greater than a straight-line distance between the first locking pin and the rotator.

4. The fixed base device for a welding robot according to claim 3, characterized in that: The second locking pin assembly includes a fixed block fixed above the first rotating base and a second locking pin slidably connected to the fixed block.

5. The fixed base device for a welding robot according to claim 4, characterized in that: The outer diameter of the first locking pin matches the inner diameter of the first locking hole, and the outer diameter of the second locking pin matches the inner diameter of the second locking hole.

6. The fixed base device for a welding robot according to claim 2, characterized in that: The slider is connected with a driving motor.

7. The fixed base device for a welding robot according to claim 1, characterized in that: The width of the second rotating base and the width of the mounting base both match the width of the limiting groove.

8. The fixed base device for a welding robot according to claim 1, characterized in that: The lifting mechanism includes a storage groove opened below the base, and a lifting top plate whose shape matches the contour of the storage groove. The lifting top plate is connected to the bottom of the base through a hydraulic cylinder.

9. The fixed base device for a welding robot according to claim 1, characterized in that: The wheel set comprises two pairs of moving wheels symmetrically distributed on the side surfaces of the base.

10. The fixed base device for a welding robot according to claim 1, characterized in that: The mounting seat is provided with a plurality of threaded holes.

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