Large valve machining and welding operation platform

Abstract

The invention relates to the field of valve welding, in particular to a large valve machining and welding operation platform which comprises a mounting frame, a translation and rotation assembly, an adaptive rod, a push plate, a lifting assembly, a clamping piece and a welding robot. A translation and rotation assembly is mounted on the left side of the mounting rack, and another translation and rotation assembly is mounted on the right side of the mounting rack; a plurality of adaptive rods are mounted on the translation and rotation assembly; the adaptive rod is driven by the translation and rotation assembly to horizontally move and annularly rotate; the diameter of the push plate is larger than that of the adaptive rod; a lifting assembly is installed on the upper portion of the rear side of the installation frame, and another lifting assembly is installed on the lower portion of the rear side of the installation frame. A clamping piece is mounted on the lifting assembly; a welding robot is arranged on one side of the mounting frame. Butt joint of the middle circular ring and the flange plate can be accurately achieved, the problem that manual welding alignment is difficult due to the fact that a large butterfly valve is large in size is solved, and the welding quality is greatly improved.

Description

Technical Field

[0001] The present invention relates to the field of valve welding, and particularly to a welding operation platform for the processing of large valves. Background Art

[0002] In the field of large butterfly valve welding, traditional operations mostly rely on manual operation. The butterfly valve body consists of a middle ring and flange plates welded at both ends. During welding, spot welding is required first and then surfacing welding. However, large butterfly valves are huge in size, and manual welding faces severe challenges. The welding alignment work is difficult, which directly leads to difficult guarantee of welding quality and thus affects the overall quality of the butterfly valve. At the same time, welding slag and spatter generated during the welding process, if not cleaned up in time after spot welding, will seriously interfere with the subsequent surfacing welding effect. The existing technology can only rely on manual cleaning, which is inefficient and labor-consuming. Against this background, there is an urgent need to develop a new welding operation platform to solve the above problems. Summary of the Invention

[0003] In order to overcome the disadvantages that large butterfly valves are huge in size, manual welding faces severe challenges, and the welding alignment work is difficult, which directly leads to difficult guarantee of welding quality and thus affects the overall quality of the butterfly valve, the present invention provides a welding operation platform for the processing of large valves, including an installation frame, a translation and rotation assembly, an adapter rod, a push plate, a lifting assembly, a clamping member, and a welding robot; a translation and rotation assembly is installed on the left side of the installation frame, and another translation and rotation assembly is installed on the right side of the installation frame; a plurality of adapter rods are installed on the translation and rotation assembly; the adapter rods are driven by the translation and rotation assembly to move horizontally and rotate annularly; a push plate is fixedly connected to the middle of the adapter rod, and the diameter of the push plate is larger than that of the adapter rod; a lifting assembly is installed on the upper part of the rear side of the installation frame, and another lifting assembly is installed on the lower part of the rear side of the installation frame; a clamping member is installed on the lifting assembly; a welding robot is arranged on one side of the installation frame.

[0004] In addition, particularly preferably, an expansion part is provided at the end of the adapter rod.

[0005] In addition, particularly preferably, the clamping member is arranged in a U shape.

[0006] In addition, particularly preferably, the translation and rotation assembly includes a first electric push rod, a first connecting plate, an annular guide rail, a first electric slider, and an annular connecting plate; the first electric push rod is fixedly connected to the installation frame; the telescopic part of the first electric push rod is fixedly connected to the first connecting plate; the annular guide rail is fixedly connected to the first connecting plate; a plurality of first electric sliders are slidably connected to the annular guide rail, and all the first electric sliders are commonly connected to the annular connecting plate; the adapter rod is fixedly connected to the annular connecting plate.

[0007] In addition, it is particularly preferred that the lifting assembly includes a linear guide rail, a second electric slider, and a second connecting plate; the linear guide rail is fixedly connected to the mounting bracket; the second electric slider is slidably connected to the linear guide rail; the second connecting plate is fixedly connected to the second electric slider; the second connecting plate is fixedly connected to the clamping member.

[0008] In addition, it is particularly preferred that it further includes a second electric push rod, a U-shaped plate, and a steel brush; the bottom of the lower clamping member is fixedly connected to the second electric push rod; the telescopic part of the second electric push rod is fixedly connected to the U-shaped plate; two steel brushes are detachably connected to the top of the U-shaped plate.

[0009] In addition, it is particularly preferred that the two steel brushes are respectively aligned with the two weld seams of the butterfly valve body.

[0010] In addition, it is particularly preferred that it further includes a third connecting plate and a sponge; two third connecting plates are fixedly connected to the U-shaped plate; one sponge is detachably connected to each third connecting plate.

[0011] In addition, it is particularly preferred that the two sponges are respectively aligned with the two weld seams of the butterfly valve body.

[0012] In addition, it is particularly preferred that the sponge is inclined.

[0013] The beneficial effects are:

[0014] Improve welding alignment accuracy and quality:

[0015] Convenient component docking: The translation and rotation assembly drives the adapter rod to move horizontally and rotate annularly. The adapter rod is inserted into the bolt holes of the flange, and the docking of the middle ring and the flange can be accurately realized, overcoming the problem of difficult manual welding alignment caused by the large volume of large butterfly valves, and greatly improving the welding quality.

[0016] Automatic centering adjustment: The larger-diameter push plate on the adapter rod can push the middle ring to make it in a centered state, effectively solving the deviation problem of the middle ring being offset to the left or right during manual placement, and further ensuring the accuracy of welding.

[0017] Reduce the production rate of defective products:

[0018] In the welding preparation stage, if the worker cannot install the flange on the adapter rod, or the middle ring is placed unevenly on the lower clamping member, the component can be determined as a defective product, and the problematic components can be screened out in advance, greatly reducing the production of defective butterfly valve bodies.

[0019] Efficient welding process:

[0020] Automated spot welding: The welding robot cooperates with the translation and rotation assembly and the lifting assembly to automatically complete the spot welding work on the front and back sides of the middle ring and the flange, achieving complete spot welding, reducing manual operation, and improving the spot welding efficiency and consistency.

[0021] Reliable surfacing welding: Through the effective restriction of the spot-welded components by the expansion part at the end of the adapter rod, in cooperation with the translation and rotation components and the welding robot, the surfacing welding work can be smoothly completed, realizing the complete surfacing welding of the middle ring and the flange, and obtaining a high-quality butterfly valve body.

[0022] Innovative slag cleaning function:

[0023] Automatic cleaning: Before surfacing welding after spot welding and after the completion of surfacing welding, the steel brush and sponge on the U-shaped plate can be driven by the second electric push rod to automatically clean the welding seam. The steel brush sweeps the welding slag and welding skin, and the sponge cleans the welding seam, eliminating the need for manual cleaning, improving the cleaning efficiency, and ensuring the welding quality.

[0024] Improve product quality: Effectively clean the welding slag and welding skin generated during welding, avoid their influence on the subsequent welding effect, significantly improve the product quality and production efficiency, and the steel brush and sponge are detachable and replaceable, facilitating maintenance.

[0025] Moreover, the bolt holes of the flange are filled with the adapter rod during both spot welding and surfacing welding, so the welding slag will not splash into the bolt holes, eliminating the need for additional cleaning of the bolt holes and reducing the cleaning workload. Description of the drawings

[0026] Figure 1 It is a state diagram showing the placement of the middle ring and the flange disclosed in the present invention;

[0027] Figure 2 It is a state diagram showing the preparation for docking after the middle ring and the flange disclosed in the present invention are placed;

[0028] Figure 3 It is a state diagram showing the docking of the middle ring and the flange disclosed in the present invention;

[0029] Figure 4 It is a state diagram showing the spot welding performed by the welding robot disclosed in the present invention;

[0030] Figure 5 It is a state diagram showing the surfacing welding performed by the welding robot disclosed in the present invention;

[0031] Figure 6 It is a partial structural schematic diagram disclosed in the present invention;

[0032] Figure 7 It is a structural schematic diagram of the butterfly valve body disclosed in the present invention;

[0033] Figure 8 It is a combined structural schematic diagram of the second electric push rod, the U-shaped plate, the steel brush, the third connecting plate and the sponge disclosed in the present invention.

[0034] The labels in the figure are: 1 - mounting bracket, 2 - translation and rotation assembly, 3 - adapter rod, 4 - push plate, 5 - lifting assembly, 6 - clamping member, 7 - welding robot, 3a - expansion part, 100 - butterfly valve body, 100a - middle ring, 100b - flange, 2a - first electric push rod, 2b - first connecting plate, 2c - annular guide rail, 2d - first electric slider, 2f - annular connecting plate, 5a - linear guide rail, 5b - second electric slider, 5c - second connecting plate, 101 - second electric push rod, 102 - U-shaped plate, 103 - steel brush, 104 - third connecting plate, 105 - sponge. Detailed implementation mode

[0035] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0036] Embodiment 1

[0037] A large valve processing and welding operation platform, as Figures 1-8 shown, includes a mounting bracket 1, a translation and rotation assembly 2, an adapter rod 3, a push plate 4, a lifting assembly 5, a clamping member 6 and a welding robot 7; a translation and rotation assembly 2 is installed on the left side of the mounting bracket 1, and another translation and rotation assembly 2 is installed on the right side of the mounting bracket 1; a plurality of adapter rods 3 are installed on the translation and rotation assembly 2, and the adapter rods 3 are arranged in a ring and correspond to the bolt holes of the flange 100b; the adapter rods 3 are driven by the translation and rotation assembly 2 to move horizontally and rotate annularly; a push plate 4 is fixedly connected to the middle of the adapter rod 3, and the diameter of the push plate 4 is larger than that of the adapter rod 3; a lifting assembly 5 is installed on the upper part of the rear side of the mounting bracket 1, and another lifting assembly 5 is installed on the lower part of the rear side of the mounting bracket 1; a clamping member 6 is installed on the lifting assembly 5, and the middle ring 100a is clamped by the upper and lower clamping members 6; a welding robot 7 is arranged on one side of the mounting bracket 1, and the butterfly valve body 100 is first spot-welded and then surfacing-welded by the welding robot 7.

[0038] It should be noted that the welding object butterfly valve body 100 in the present invention is composed of a middle ring 100a and flanges 100b welded at both ends of the middle ring 100a. The specific welding method is to first weld the flange 100b on the middle ring 100a by spot welding, and then perform surfacing welding, so as to realize the complete welding of the middle ring 100a and the flange 100b. In the prior art, when welding the butterfly valve body 100, it is usually welded manually. However, due to the large volume of the large butterfly valve, it is difficult to align the welding of the butterfly valve body 100, resulting in poor welding quality and further affecting the quality of the large butterfly valve. Based on this, the present invention is proposed.

[0039] When the present invention works, as Figure 1As shown, first, the worker places the middle ring 100a on the lower clamping member 6, and installs the two flange plates 100b on the adapter rod 3. The adapter rod 3 is inserted into the bolt holes of the flange plates 100b, thus completing the welding preparation work, which is convenient for the worker to operate.

[0040] It should be noted that there are also some defective products among the middle ring 100a and the flange plates 100b. When the worker cannot install the flange plate 100b on the adapter rod 3, or the middle ring 100a is placed unevenly on the lower clamping member 6, the worker can know that it is a defective product, which also greatly reduces the generation of defective products of the butterfly valve body 100.

[0041] After that, as Figure 2 shown, control the two lifting components 5 to work, thereby driving the two clamping members 6 to move towards each other, and then driving the middle ring 100a to move upward, so that the middle ring 100a and the flange plates 100b are on the same axis. At this time, the two clamping members 6 clamp the middle ring 100a up and down;

[0042] After that, as Figure 3 shown, control the translation and rotation component 2 to work, thereby driving the two flange plates 100b to move towards each other, so that the left flange plate 100b is sleeved on the left side of the middle ring 100a, and the right flange plate 100b is sleeved on the right side of the middle ring 100a, thus completing the docking work of the middle ring 100a and the flange plates 100b;

[0043] It should be noted that the diameter of the push plates 4 provided on the adapter rod 3 is larger. Therefore, the push plates 4 on both sides will push the middle ring 100a to move left or right, making it in the center state, so as to overcome the problem that the middle ring 100a is biased to the left or right when placed manually.

[0044] After that, as Figure 4 shown, control the two lifting components 5 to work, thereby driving the two clamping members 6 to move away from each other, canceling the clamping of the middle ring 100a. At this time, the movement of the middle ring 100a is restricted by the push plates 4. Then control the welding robot 7 to perform spot welding on the rear sides of the middle ring 100a and the flange plates 100b. When the rear side spot welding is completed, control the translation and rotation component 2 to work, thereby driving the adapter rod 3 to rotate circumferentially. The adapter rod 3 drives the flange plates 100b to rotate. Since the rear sides of the middle ring 100a and the flange plates 100b are spot welded together, it can drive the middle ring 100a and the flange plates 100b to rotate together, making the front side that was not spot welded face the welding robot 7 to complete the remaining spot welding work, thereby realizing the complete spot welding work of the middle ring 100a and the flange plates 100b.

[0045] An expansion part 3a is provided at the end of the adapter rod 3, and the expansion part 3a expands or contracts actively by electricity or air pressure.

[0046] After the spot welding work is completed, control the two clamping members 6 to move towards each other and clamp the middle ring 100a again. Then, control the two side adapter rods 3 to move away from each other, so that the expansion part 3a moves into the bolt hole of the flange 100b. Through the active expansion of the expansion part 3a, the flange 100b is fixed by the expansion part 3a, and at the same time, the bolt hole of the flange 100b is blocked. After that, control the two clamping members 6 to move away from each other, and then control the translation and rotation assembly 2 to work, so that the adapter rod 3 drives the spot-welded middle ring 100a and flange 100b to rotate. At the same time, control the welding robot 7 to work for surfacing welding; thus, the complete surfacing welding work of the middle ring 100a and flange 100b is realized, and the butterfly valve body 100 is obtained. The bolt holes of the flange 100b are filled by the adapter rod 3 during both spot welding and surfacing welding, so the welding slag will not splash into the bolt holes, and there is no need to clean the bolt holes additionally.

[0047] The clamping member 6 is arranged in a U shape.

[0048] The translation and rotation assembly 2 includes a first electric push rod 2a, a first connecting plate 2b, an annular guide rail 2c, a first electric slider 2d and an annular connecting plate 2f; the first electric push rod 2a is fixedly connected to the mounting frame 1; the telescopic part of the first electric push rod 2a is fixedly connected to the first connecting plate 2b; the first connecting plate 2b is fixedly connected to the annular guide rail 2c; a plurality of first electric sliders 2d are slidably connected to the annular guide rail 2c, and all the first electric sliders 2d are commonly connected to the annular connecting plate 2f; the adapter rod 3 is fixedly connected to the annular connecting plate 2f; by the telescopic movement of the telescopic part of the first electric push rod 2a, the first connecting plate 2b, the annular guide rail 2c, the first electric slider 2d and the annular connecting plate 2f are pushed to move left or right, so as to drive the flange 100b to move left or right. By the annular sliding of the first electric slider 2d on the annular guide rail 2c, the annular connecting plate 2f and the adapter rod 3 are driven to rotate annularly, so as to drive the flange 100b to rotate.

[0049] The lifting assembly 5 includes a linear guide rail 5a, a second electric slider 5b and a second connecting plate 5c; the linear guide rail 5a is fixedly connected to the mounting frame 1; the second electric slider 5b is slidably connected to the linear guide rail 5a; the second electric slider 5b is fixedly connected to the second connecting plate 5c; the second connecting plate 5c is fixedly connected to the clamping member 6; by the upward or downward movement of the second electric slider 5b on the linear guide rail 5a, the second connecting plate 5c and the clamping member 6 are driven to move upward or downward.

[0050] Embodiment 2

[0051] On the basis of Embodiment 1, as Figures 1-8As shown in the figure, it further includes a second electric push rod 101, a U-shaped plate 102 and a steel brush 103; the bottom of the clamping member 6 located below is fixedly connected with the second electric push rod 101; the telescopic part of the second electric push rod 101 is fixedly connected with the U-shaped plate 102; two steel brushes 103 are detachably connected to the top of the U-shaped plate 102.

[0052] The two steel brushes 103 are respectively aligned with the two welding seams of the butterfly valve body 100.

[0053] It further includes a third connecting plate 104 and a sponge 105; two third connecting plates 104 are fixedly connected to the U-shaped plate 102; one sponge 105 is detachably connected to each third connecting plate 104.

[0054] The two sponges 105 are respectively aligned with the two welding seams of the butterfly valve body 100. The steel brush 103 acts on the welding seam first, and then the sponge 105 acts on the welding seam.

[0055] The sponge 105 is inclined, which is conducive to guiding the debris to fall.

[0056] It should be noted that during welding, welding slag and welding skin will be generated. If these welding slag and welding skin are not cleaned up after spot welding, it will seriously affect the subsequent surfacing effect. In the prior art, only manual cleaning can be carried out, which is time-consuming and laborious. Based on this problem, in the present invention, after spot welding, as Figure 5 、 Figure 8 shown, before the surfacing work is carried out, the second electric push rod 101 can be controlled to work, and its telescopic part drives the U-shaped plate 102 to move upward, so as to drive the steel brush 103 and the sponge 105 to contact the welding seams of the middle ring 100a and the flange 100b. Then, the middle ring 100a and the flange 100b are controlled to rotate, so that the spot welding positions are successively in contact with the steel brush 103 and the sponge 105, so as to first use the steel brush 103 to sweep down the welding slag and welding skin, and then use the sponge 105 to clean the welding seam; in addition, after the surfacing of the butterfly valve body 100 is completed, the welding slag and welding skin generated by surfacing can still be cleaned up through the steel brush 103 and the sponge 105, so as to obtain a clean welded butterfly valve body 100, greatly improving the product quality and production efficiency.

[0057] Furthermore, when the steel brush 103 and the sponge 105 reach the replacement standard, the operator can disassemble them and replace them with new ones.

[0058] Although the present disclosure has been shown and described with reference to specific exemplary embodiments thereof, those skilled in the art should understand that various changes in form and detail may be made therein without departing from the spirit and scope of the present disclosure as defined by the appended claims and their equivalents. Therefore, the scope of the present disclosure should not be limited to the above-described embodiments, but should be determined not only by the appended claims but also by the equivalents of the appended claims.

Claims

1. A large valve processing and welding operation platform, characterized by: The invention comprises a mounting frame (1), a translation and rotation assembly (2), an adaptor rod (3), a push plate (4), a lifting assembly (5), a clamping member (6) and a welding robot (7); a translation and rotation assembly (2) is mounted on the left side of the mounting frame (1), and another translation and rotation assembly (2) is mounted on the right side of the mounting frame (1); a plurality of adaptor rods (3) are mounted on the translation and rotation assembly (2); the adaptor rod (3) is driven to move horizontally and rotate in a circular manner by the translation and rotation assembly (2); a push plate (4) is fixedly connected to the middle of the adaptor rod (3), and the diameter of the push plate (4) is larger than that of the adaptor rod (3); a lifting assembly (5) is mounted on the upper part of the rear side of the mounting frame (1), and another lifting assembly (5) is mounted on the lower part of the rear side of the mounting frame (1); a clamping member (6) is mounted on the lifting assembly (5); and a welding robot (7) is arranged on one side of the mounting frame (1).

2. A large valve processing and welding operation platform according to claim 1, characterized in that: The end of the adapter rod (3) is provided with an expansion portion (3a).

3. A large valve processing and welding operation platform according to claim 1, characterized in that: The clamping member (6) is arranged in a U shape.

4. A large valve processing and welding operation platform according to claim 1, characterized in that: The translation and rotation assembly (2) comprises a first electric push rod (2a), a first connecting plate (2b), an annular guide rail (2c), a first electric slider (2d) and an annular connecting plate (2f); the first electric push rod (2a) is fixedly connected to the mounting frame (1); the telescopic portion of the first electric push rod (2a) is fixedly connected to the first connecting plate (2b); the first connecting plate (2b) is fixedly connected to the annular guide rail (2c); a plurality of first electric sliders (2d) are slidably connected to the annular guide rail (2c), and all the first electric sliders (2d) are commonly connected to the annular connecting plate (2f); and the adapter rod (3) is fixedly connected to the annular connecting plate (2f).

5. A large valve processing and welding operation platform according to claim 1, characterized in that: The lifting assembly (5) comprises a linear guide rail (5a), a second electric slider (5b) and a second connecting plate (5c); the linear guide rail (5a) is fixedly connected to the mounting frame (1); the second electric slider (5b) is slidably connected to the linear guide rail (5a); the second connecting plate (5c) is fixedly connected to the second electric slider (5b); and the second connecting plate (5c) is fixedly connected to the clamping member (6).

6. A large valve processing and welding operation platform according to claim 1, characterized in that: It also includes a second electric push rod (101), a U-shaped plate (102) and a steel brush (103); the second electric push rod (101) is fixedly connected to the bottom of the clamping member (6) located below; the telescopic portion of the second electric push rod (101) is fixedly connected to the U-shaped plate (102); and the top of the U-shaped plate (102) is detachably connected to two steel brushes (103).

7. A large valve processing and welding operation platform according to claim 6, characterized in that: The two steel brushes (103) are respectively aligned with the two welding seams of the butterfly valve body (100).

8. A large valve processing and welding operation platform according to claim 6, characterized in that: It also comprises a third connecting plate (104) and a sponge (105); two third connecting plates (104) are fixedly connected to the U-shaped plate (102); and a sponge (105) is detachably connected to each third connecting plate (104).

9. A large valve processing and welding operation platform according to claim 8, characterized in that: The two sponges (105) are respectively aligned with the two welding seams of the butterfly valve body (100).

10. A large valve processing and welding operation platform according to claim 8, characterized in that: The sponge (105) is arranged in an inclined manner.

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