Positioning, overturning and welding device

Abstract

The utility model relates to the technical field of overturning welding devices, and provides a positioning overturning welding device which comprises a supporting frame arranged on one side of a welding robot, a bracket is installed on the supporting frame in an overturning mode through a driving assembly, an installation plate is installed on the bracket in a hinged mode, and a first pushing device is arranged between the installation plate and the bracket. One end of the first pushing device is hinged to the mounting plate, the other end of the first pushing device is hinged to the fixing frame, the fixing frame is mounted at the bottom of the bracket, and the mounting plate is further provided with a positioning mechanism used for positioning the guide rail frame. According to the utility model, a welding workpiece can be positioned and overturned, and can be inclined in another axial direction, so that the workpiece can be adjusted in multiple directions, the welding of a welding head of a robot is facilitated, and the welding efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a turnover welding device technical field especially relates to a positioning turnover welding device. BACKGROUND

[0002] At present, the welding of guide rail frame is mainly manual welding by welders, but manual welding is troublesome and has low welding processing efficiency, and the sputtering slag in the welding process can easily cause harm to the welder, in order to solve these problems and improve the welding efficiency, a robot welding is introduced, but the guide rail frame needs to be fixed in advance during robot welding, and the guide rail frame also needs to be turned over, many positioning turnover welding devices exist at present, for example, a Chinese utility model patent with the patent number CN202022771757.4 and the patent name of a vehicle frame positioning turnover welding clamp, which comprises a base, a bearing seat, a speed reducer motor, a driving shaft, a driven shaft and a turnover frame, the turnover frame has a long side frame and a wide side frame; the long side frame and the wide side frame are connected through a pin shaft sliding rod, the long side frame clamps the long side of the vehicle frame through a plurality of clamping air cylinders; the wide side frame clamps the wide side of the vehicle frame by translating along the strip-shaped hole at the end of the long side frame, the above structure can realize convenient turnover of the vehicle frame, thereby realizing welding operation on the front and back surfaces of the vehicle frame, although the above device can realize turnover welding, when welding workpieces such as guide rail frames, some welds are located at the bottom of the workpiece, and sometimes other components block the top of the weld, when the welding robot welds from the front or side, the other components will hinder the welding head of the welding robot, and even cause collision and other problems, often after the workpiece is welded, the welding worker needs to perform repair welding on the incomplete welding area, which affects the normal operation of the robot welding and the welding efficiency, in view of the above problems, the workpiece can be inclined to cooperate with the welding robot to complete the welding operation, but the positioning turnover welding device at present mostly only has the turnover function and cannot incline the workpiece in another axial direction. SUMMARY

[0003] In order to overcome the defects of the prior art as pointed out above, the utility model provides a positioning turnover welding device, which can position and turn over the welding workpiece, and also can incline the welding workpiece in another axial direction, realize the adjustment of the workpiece in multiple directions, facilitate the welding of the welding head of the robot, and improve the welding efficiency.

[0004] To solve the above technical problems, the technical scheme of the utility model is:

[0005] The application discloses a positioning and overturning welding device which comprises a support frame arranged on one side of a welding robot, a bracket is rotatably arranged on the support frame through a driving assembly, a mounting plate is hingedly arranged on the bracket, a first pushing device is arranged between the mounting plate and the bracket, one end of the first pushing device is hingedly connected with the mounting plate, the other end is hingedly arranged on a fixed frame, the fixed frame is arranged on the bottom of the bracket, and a positioning mechanism for positioning a guide rail frame is further arranged on the mounting plate.

[0006] As an improved technical scheme, the driving assembly comprises two driving shafts arranged oppositely, the two driving shafts are respectively arranged at two ends of the bracket, the two driving shafts are both arranged on the support frame through bearing seats, and one of the driving shafts is connected with a driving motor, and the driving motor is arranged on the support frame through a base.

[0007] As an improved technical scheme, one end of the mounting plate is provided with a first connecting lug, a first connecting shaft is arranged in the first connecting lug, and the first connecting shaft is arranged on the bracket.

[0008] The other end of the mounting plate is provided with a second connecting lug, the second connecting lug is connected with a piston rod of the first pushing device through a second connecting shaft, and one end of the first pushing device, which is away from the second connecting lug, is hingedly connected with the fixed frame.

[0009] As an improved technical scheme, one end of the mounting plate, which is close to the first connecting shaft, is provided with a clearance groove for avoiding the bracket.

[0010] As an improved technical scheme, the positioning mechanism comprises at least one group of first positioning assemblies arranged along the long axis direction of the guide rail frame and at least one group of second positioning assemblies arranged along the short axis direction of the guide rail frame, and the first positioning assemblies and the second positioning assemblies jointly form the positioning of the guide rail frame in the horizontal direction.

[0011] As an improved technical scheme, the first positioning assembly comprises a first fixing plate arranged on the mounting plate, the first fixing plate abuts against one end of the guide rail frame along the long axis direction, the other end of the guide rail frame along the long axis direction is correspondingly provided with a second pushing device, the second pushing device is also arranged on the mounting plate, one end of the second pushing device, which is close to the guide rail frame, is connected with a push plate, and the push plate and the first fixing plate jointly form a space for positioning the guide rail frame in the long axis direction.

[0012] As an improved technical scheme, the second positioning assembly comprises a second fixing plate mounted on the mounting plate, the second fixing plate abuts against one end of the guide rail frame in the short axis direction, the other end of the guide rail frame in the short axis direction is correspondingly provided with a third pushing device, the third pushing device is also mounted on the mounting plate, the third pushing device is connected with a pushing block close to one end of the guide rail frame, and the pushing block and the second fixing plate jointly form a space for positioning the guide rail frame in the short axis direction.

[0013] As an improved technical scheme, the mounting plate is provided with a plurality of avoidance holes for welding of the welding robot.

[0014] After the above technical scheme is adopted, the welding device has the following beneficial effects:

[0015] By arranging the support frame on one side of the welding robot, the bracket is reversibly mounted on the support frame through the driving assembly, the mounting plate is hingedly mounted on the bracket, the first pushing device is arranged between the mounting plate and the bracket, one end of the first pushing device is hingedly connected with the mounting plate, the other end is hingedly mounted on the fixed frame, the fixed frame is mounted on the bottom of the bracket, and the positioning mechanism for positioning the guide rail frame is further arranged on the mounting plate. The guide rail frame can be positioned through the positioning mechanism, the mounting plate can be pushed to rotate around the bracket through the first pushing device, and the bracket can be pushed to reverse through the driving assembly. Therefore, multi-directional adjustment is realized, the guide rail frame can be welded in multiple directions by cooperating with the welding robot, the problem that the traditional welding tool can only be reversed and is inconvenient to weld in some areas due to the limitation of the structure of the workpiece is avoided, and the welding efficiency is improved.

[0016] In conclusion, the positioning and reversing welding device can position and reverse the welding workpiece, can also tilt the welding workpiece in another axial direction, can adjust the workpiece in multiple directions, is convenient for welding of the welding head of the robot, and improves the welding efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained according to the structures shown in the drawings without creative labor for those skilled in the art. In addition, in the drawings, each element or part is not necessarily drawn according to the actual proportion.

[0018] Figure 1 The figure is a structural schematic view of the present application;

[0019] Figure 2 The figure is a structural schematic view of the present application from another angle.

[0020] Figure 3 It is a structure schematic view of the support frame, the driving assembly and the positioning mechanism in the utility model;

[0021] Figure 4 It is a structure schematic view of the support frame, the driving assembly and the positioning mechanism in the utility model; Figure 3 It is a structure schematic view of the support frame, the driving assembly and the positioning mechanism in the utility model;

[0022] Reference signs:

[0023] 1, welding robot, 2, support frame, 3, driving assembly, 301, drive shaft, 302, bearing seat, 303, drive motor, 304, base, 4, bracket, 5, mounting plate, 6, first push device, 7, fixed frame, 8, guide rail frame, 9, first connecting lug, 10, first connecting shaft, 11, second connecting lug, 12, second connecting shaft, 13, position avoiding groove, 14, first positioning assembly, 1401, first fixed plate, 1402, second push device, 1403, push plate, 15, second positioning assembly, 1501, second fixed plate, 1502, third push device, 1503, push block, 16, position avoiding hole. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0025] It should be noted that all directionality indications (such as up, down, left, right, front, back, etc.) in the embodiments of the utility model are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directionality indications also change accordingly.

[0026] Meanwhile, the meaning of "and / or" or "and / or" appearing throughout the text is that three schemes are included, taking "A and / or B" as an example, including A scheme, or B scheme, or A and B schemes are satisfied at the same time.

[0027] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0028] like Figures 1-4 As shown, a positioning and flipping welding device includes a support frame 2 located on one side of a welding robot 1. A bracket 4 is flipped and mounted on the support frame 2 via a drive assembly 3. An mounting plate 5 is hinged to the bracket 4. A first pushing device 6 is provided between the mounting plate 5 and the bracket 4. The first pushing device 6 can be a cylinder. One end of the first pushing device 6 is hinged to the mounting plate 5, and the other end is hinged to a fixed frame 7. The fixed frame 7 is installed at the bottom of the bracket 4. The mounting plate 5 is also provided with a positioning mechanism for positioning a guide rail frame 8.

[0029] In this embodiment, Figure 1 The corner of the support frame 2 shown is the origin of the XYZ axis. The rotation of the bracket 4 driven by the drive component 3 is the adjustment in the X and Y axis directions. The rotation of the mounting plate 5 around the bracket 4 driven by the first push device 6 is the adjustment in the Z axis direction. Thus, multi-directional adjustment of the guide rail frame 8 can be achieved.

[0030] The guide rail frame 8 can be positioned by the positioning mechanism, the mounting plate 5 can be rotated around the bracket 4 by the first pushing device 6, and the bracket 4 can be flipped by the driving component 3. Thus, multi-directional adjustment can be achieved. In conjunction with the welding robot 1, multi-directional welding of the guide rail frame 8 can be achieved, avoiding the problem that traditional welding fixtures that can only be flipped are inconvenient to weld in some areas due to the limitations of the workpiece structure, thus improving welding efficiency.

[0031] like Figures 1-4 As shown, the drive assembly 3 includes two drive shafts 301 arranged opposite to each other. The two drive shafts 301 are respectively fixedly installed at both ends of the bracket 4. Both drive shafts 301 are rotatably installed on the support frame 2 through bearing seats 302. One of the drive shafts 301 is connected to a drive motor 303. The drive motor 303 can be a servo motor. The drive motor 303 is installed on the support frame 2 through a base 304. The drive motor 303 can drive the drive shaft 301 to rotate. During the rotation of the drive shaft 301, the bracket 4 is driven to rotate synchronously, thereby realizing the flipping action of the bracket 4, which facilitates the welding robot 1 to weld the front, side and back of the guide rail frame 8.

[0032] As Figure 4 shown, one end of the mounting plate 5 is provided with a first connecting lug 9, a first connecting shaft 10 is arranged in the first connecting lug 9, and the first connecting shaft 10 is arranged on the bracket 4. By arranging the first connecting lug 9 and the first connecting shaft 10, the mounting plate 5 can rotate around the first connecting shaft 10 on the bracket 4 when subjected to external force.

[0033] The other end of the mounting plate 5 is provided with a second connecting lug 11, and the second connecting lug 11 is connected with the piston rod of the first pushing device 6 through a second connecting shaft 12. The end of the first pushing device 6 away from the second connecting lug 11 is hingedly connected with the fixed frame 7. The extension and retraction of the piston rod of the first pushing device 6 can push the mounting plate 5 to rotate around the bracket 4, so as to realize the adjustment of the guide rail frame 8 in the Z-axis direction.

[0034] As Figures 1-3 shown, the end of the mounting plate 5 close to the first connecting shaft 10 is provided with a clearance groove 13 for avoiding the bracket 4. By arranging the clearance groove 13, the mounting plate 5 can smoothly rotate around the first connecting shaft 10 of the bracket 4, so as to avoid collision and obstruction during rotation.

[0035] As Figures 1-3 shown, the positioning mechanism includes at least one set of first positioning assemblies 14 arranged along the long axis direction of the guide rail frame 8 and at least one set of second positioning assemblies 15 arranged along the short axis direction of the guide rail frame 8. The first positioning assemblies 14 and the second positioning assemblies 15 jointly form the positioning of the guide rail frame 8 in the horizontal direction. The long axis direction of the guide rail frame 8 can be positioned by the first positioning assemblies 14, and the short axis direction of the guide rail frame 8 can be positioned by the second positioning assemblies 15.

[0036] In this embodiment, the long axis direction of the guide rail frame 8 is defined along the length direction of the guide rail frame 8, and the short axis direction of the guide rail frame 8 is defined along the width direction of the guide rail frame 8.

[0037] As Figures 1-3 shown, the first positioning assembly 14 includes a first fixed plate 1401 mounted on the mounting plate 5. The first fixed plate 1401 abuts against one end of the guide rail frame 8 along the long axis direction. A second pushing device 1402 is correspondingly arranged at the other end of the guide rail frame 8 along the long axis direction. The second pushing device 1402 can be a pneumatic cylinder. The second pushing device 1402 is also mounted on the mounting plate 5. The end of the second pushing device 1402 close to the guide rail frame 8 is connected with a push plate 1403. The push plate 1403 and the first fixed plate 1401 jointly form a space for positioning the guide rail frame 8 in the long axis direction. The extension of the piston rod of the second pushing device 1402 can drive the push plate 1403 to move synchronously. During the movement of the push plate 1403, the guide rail frame 8 is pushed to move towards the first fixed plate 1401, so as to realize the positioning of the guide rail frame 8 in the long axis direction in cooperation with the first fixed plate 1401.

[0038] As Figures 1-3 shown, the second positioning assembly 15 comprises a second fixed plate 1501 mounted on the mounting plate 5, the second fixed plate 1501 abuts against one end of the guide rail frame 8 along the short axis direction, and the other end of the guide rail frame 8 along the short axis direction is provided with a third pushing device 1502 corresponding, the third pushing device 1502 can adopt a pneumatic cylinder, the third pushing device 1502 is also mounted on the mounting plate 5, and the third pushing device 1502 is connected with a push block 1503 close to one end of the guide rail frame 8. The push block 1503 and the second fixed plate 1501 jointly form a space for positioning the guide rail frame 8 in the short axis direction. The piston rod of the third pushing device 1502 can drive the push block 1503 to move synchronously. During the movement of the push block 1503, the guide rail frame 8 is pushed to move towards the second fixed plate 1501, thereby cooperating with the second fixed plate 1501 to realize positioning of the guide rail frame 8 in the short axis direction.

[0039] As Figures 1-4 shown, the mounting plate 5 is provided with a plurality of avoidance holes 16 for welding by the welding robot 1. When the bracket 4 is turned over, the welding robot 1 can pass through the avoidance holes 16 to weld the back of the guide rail frame 8.

[0040] In addition, the first pushing device 6, the second pushing device 1402, the third pushing device 1502, the driving motor 303 and the welding robot 1 are connected to the control system, which can adopt PLC. The control system controls the running state of each part. The control system is common in daily life and belongs to the common knowledge of those skilled in the art. Therefore, it will not be described here and is not marked in the figure.

[0041] In order to facilitate understanding, the working process of the present embodiment is described as follows:

[0042] As Figures 1-4 shown, first, the guide rail frame 8 is pre-welded, then the guide rail frame 8 is placed on the positioning mechanism of the mounting plate 5, and one long axis side and one short axis side of the guide rail frame 8 abut on the second fixed plate 1501 and the first fixed plate 1401 respectively. Then, the piston rod of the second pushing device 1402 is elongated, and the push plate 1403 is driven to move synchronously. The push plate 1403 cooperates with the first fixed plate 1401 to realize positioning of the guide rail frame 8 in the long axis direction. Then, the piston rod of the third pushing device 1502 is elongated, and the push block 1503 is driven to move synchronously. The push block 1503 cooperates with the second fixed plate 1501 to realize positioning of the guide rail frame 8 in the short axis direction.

[0043] When the guide rail frame 8 is positioned, the welding robot 1 is started, and the welding robot 1 welds the guide rail frame 8 on the mounting plate 5 according to the set program, in the process of welding, the piston rod of the first pushing device 6 is elongated, and the mounting plate 5 is rotated around the first connecting shaft 10 of the bracket 4 to realize the adjustment of the guide rail frame 8 in the Z-axis direction, so that the weld of the shielding part of the guide rail frame 8 is inclined to expose, and the welding of the welding robot 1 is facilitated, in addition, the driving motor 303 drives the bracket 4 to overturn 90°, 180°, 270° and 360° along the X-axis and Y-axis directions through the driving shaft 301, so that the front, side and back of the guide rail frame 8 can be welded by the welding robot 1.

[0044] In conclusion, the positioning and overturning welding device can position and overturn the welding workpiece, and can also incline the welding workpiece in another axial direction, so that the welding workpiece can be adjusted in multiple directions, the welding of the welding head of the robot is facilitated, and the welding efficiency is improved.

[0045] It should be understood that the use of these embodiments is only for the purpose of illustrating the present application and is not intended to limit the protection scope of the present application. In addition, it should also be understood that after reading the technical content of the present application, those skilled in the art can make various modifications, modifications and / or variations to the present application, and all these equivalent forms also fall within the protection scope defined by the appended claims of the present application.

Claims

1. A positioning and flipping welding device, characterized by: The application relates to a support frame arranged on one side of a welding robot, a bracket is reversibly arranged on the support frame through a driving assembly, a mounting plate is hingedly arranged on the bracket, a first pushing device is arranged between the mounting plate and the bracket, one end of the first pushing device is hingedly connected with the mounting plate, the other end is hingedly arranged on a fixed frame, the fixed frame is arranged on the bottom of the bracket, and a positioning mechanism for positioning a guide rail frame is further arranged on the mounting plate.

2. A positioning and inverting welding device as claimed in claim 1, characterized in that: The driving assembly comprises two driving shafts arranged oppositely, the two driving shafts are respectively arranged on two ends of the bracket, the two driving shafts are both arranged on the support frame through bearing seats, and one of the driving shafts is connected with a driving motor, and the driving motor is arranged on the support frame through a base.

3. A positioning and inverting welding device as defined in claim 1, characterized in that: One end of the mounting plate is provided with a first connecting lug, a first connecting shaft is arranged in the first connecting lug, and the first connecting shaft is arranged on the bracket. The other end of the mounting plate is provided with a second connecting lug, the second connecting lug is connected with a piston rod of the first pushing device through a second connecting shaft, and one end of the first pushing device away from the second connecting lug is hingedly connected with the fixed frame.

4. A positioning and inverting welding device as defined in claim 3, characterized in that: One end of the mounting plate close to the first connecting shaft is provided with a position-avoiding groove for avoiding the bracket.

5. A positioning and inverting welding device as defined in claim 1, characterized in that: The positioning mechanism comprises at least one group of first positioning components arranged along the long-axis direction of the guide rail frame and at least one group of second positioning components arranged along the short-axis direction of the guide rail frame, and the first positioning components and the second positioning components jointly form horizontal positioning of the guide rail frame.

6. A positioning and inverting welding device as defined in claim 5, characterized in that: The first positioning component comprises a first fixing plate arranged on the mounting plate, the first fixing plate abuts against one end of the guide rail frame along the long-axis direction, the other end of the guide rail frame along the long-axis direction is correspondingly provided with a second pushing device, the second pushing device is also arranged on the mounting plate, one end of the second pushing device close to the guide rail frame is connected with a push plate, and the push plate and the first fixing plate jointly form a space for positioning the guide rail frame along the long-axis direction.

7. A positioning and inverting welding device as defined in claim 5, characterized in that: The second positioning component comprises a second fixing plate arranged on the mounting plate, the second fixing plate abuts against one end of the guide rail frame along the short-axis direction, the other end of the guide rail frame along the short-axis direction is correspondingly provided with a third pushing device, the third pushing device is also arranged on the mounting plate, one end of the third pushing device close to the guide rail frame is connected with a push block, and the push block and the second fixing plate jointly form a space for positioning the guide rail frame along the short-axis direction.

8. A positioning and inverting welding device as defined in claim 1, characterized in that: The mounting plate is provided with a plurality of position-avoiding holes for welding of the welding robot.

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