Sleeper Girder Assembly Welding Production Line

Abstract

The present invention provides a production line for assembling and welding bolster beams, comprising: a material rack; a first track located on one side of the material rack; a first handling robot movably arranged on the first track; an alignment device arranged on the first track and connected to the first handling robot, the alignment device comprising a bracket, an inclined plate arranged on the bracket, and a first alignment bar and a second alignment bar arranged on the inclined plate, the first alignment bar and the second alignment bar being arranged at a right angle to each other, and a first opening between the first alignment bar and the second alignment bar facing upwards; an assembly device arranged on the side of the first handling robot away from the first track; a second track arranged on the side of the assembly device away from the first handling robot; a second handling robot movably arranged on the second track; and a welding processing area arranged on the side of the second handling robot away from the second track. The technical solution of the present application effectively solves the problem of low assembly efficiency of the production line for assembling and welding bolster beams in the related art.

Description

Technical Field

[0001] The present invention relates to the technical field of railway vehicle production equipment, and more particularly, to a bolster assembly welding production line. Background Art

[0002] Taking the bolster of an open wagon as an example, the components of the bolster include a bottom plate, a web plate and a partition plate. The assembly welding of the bottom plate, the web plate and the partition plate into a bolster needs to be realized through a bolster assembly welding production line.

[0003] The bolster production line in the related art includes a material rack, a first handling robot, an assembly device, a second handling robot and a welding processing area. The first handling robot is located on one side of the material rack, the assembly device is arranged on one side of the first handling robot, the second handling robot is arranged on one side of the assembly device, and the welding processing area is arranged on one side of the second handling robot. The material rack is used to place the bottom plate, the web plate and the partition plate. Taking the web plate as an example, the first handling robot directly places the web plate at the position of the assembly device. Since the position of the web plate placed on the assembly device is inaccurate and needs to be adjusted, at this time, it is necessary to re-handle by the first handling robot. After multiple adjustments, the web plate is placed at a suitable position on the assembly device, which results in a low assembly efficiency of the bolster assembly welding production line. Summary of the Invention

[0004] The main object of the present invention is to provide a bolster assembly welding production line to solve the problem of low assembly efficiency of the bolster assembly welding production line in the related art.

[0005] To achieve the above object, the present invention provides a bolster assembly welding production line for producing a bolster. The bolster assembly welding production line includes: a material rack; a first track located on one side of the material rack; a first handling robot movably arranged on the first track; an alignment device arranged on the first track and connected to the first handling robot. The alignment device includes a bracket, an inclined plate arranged on the bracket, a first alignment bar and a second alignment bar arranged on the inclined plate. The first alignment bar and the second alignment bar are arranged at a right angle to each other, and the first opening between the first alignment bar and the second alignment bar faces upward; an assembly device arranged on the side of the first handling robot away from the material rack; a second track arranged on the side of the assembly device away from the first handling robot; a second handling robot movably arranged on the second track; and a welding processing area arranged on the side of the second handling robot away from the assembly device.

[0006] Further, the inclined plate is a rectangular plate, the rectangular plate includes an upper edge and a lower edge arranged opposite to each other and a left edge and a right edge arranged between the upper edge and the lower edge. The first alignment bar is connected to the left edge and the lower edge, and the second alignment bar is connected to the right edge and the lower edge.

[0007] Further, the centering device further includes a third centering strip and a fourth centering strip disposed on the inclined plate. The third centering strip and the fourth centering strip are arranged at a right angle to each other. The third centering strip and the fourth centering strip are located between the left edge and the first centering strip, and the lengths of both the third centering strip and the fourth centering strip are less than the length of the first centering strip. The second opening between the third centering strip and the fourth centering strip faces upward.

[0008] Further, the bolster includes two webs arranged in parallel, a partition disposed between the two webs, and a bottom plate connected to the bottoms of the two webs and the partition. A suspension seat is provided on the outer side surface of each web. Among them, the suspension seat includes a horizontal piece vertically connected to the outer side surface of the web and a vertical piece connected to the horizontal piece and the outer side surface of the web.

[0009] Further, the welding processing area includes a base, a first hanging frame disposed on one side of the base, and a first welding robot movably disposed on the first hanging frame. The base includes a pair of rotary motors and a bottom bracket connected to the motor shafts of the pair of rotary motors.

[0010] Further, the assembly equipment includes: a first assembly device, including a first positioning table, multiple pairs of first support members, multiple pairs of web clamping devices, and a partition clamping device. The multiple first support members, the multiple web clamping devices, and the partition clamping device are all disposed on the first positioning table. The multiple pairs of web clamping devices are located on both sides of the multiple pairs of first support members, and the partition clamping device is located between the multiple pairs of first support members. Among them, a first assembly space is formed among the multiple first support members, the multiple web clamping devices, and the partition clamping device; a second assembly device, spaced apart from the first assembly device. The second assembly device includes a second positioning table, multiple pairs of second support members, multiple pairs of end face pressing devices, multiple pairs of top face pressing devices, and multiple pairs of bottom plate pressing devices. The multiple pairs of second support members, the multiple pairs of end face pressing devices, a pair of top face pressing devices, and the multiple pairs of bottom plate pressing devices are all disposed on the second positioning table. The multiple pairs of end face pressing devices are located on both sides of the multiple pairs of second support members, a pair of top face pressing devices is located above the multiple pairs of second support members, and the multiple pairs of bottom plate pressing devices are located on both sides of a pair of top face pressing devices. Among them, a second assembly space is formed among the multiple pairs of second support members, the multiple pairs of end face pressing devices, a pair of top face pressing devices, and the multiple pairs of bottom plate pressing devices.

[0011] Further, the web clamping device includes a first column, a first positioning wheel disposed on one side of the first column, a first clamping block disposed on one side of the first column, and a second clamping block rotatably disposed on the first column. The first clamping block and the first positioning wheel are located on the same side of the first column. The second clamping block has a first clamping position close to each other and a first loosening position away from each other relative to the first clamping block. The web clamping device further includes a first driving cylinder disposed on the first column, and the second clamping block is disposed on the first driving cylinder.

[0012] Further, the first driving cylinder includes a cylinder block, a piston telescopic rod disposed within the cylinder block, and a rotating shaft rotatably disposed on the cylinder block. The axis of the rotating shaft is perpendicular to the piston telescopic rod. The second clamping block is disposed on the rotating shaft. The piston telescopic rod is disposed on one side of the rotating shaft and drives the rotating shaft to rotate. Wherein, a square through hole is provided on the second clamping block, and the rotating shaft includes a square shaft section inserted into the square through hole.

[0013] Further, the partition clamping device includes a second driving cylinder disposed on the first positioning table, a positioning plate disposed on the second driving cylinder, and a clamping plate disposed on the piston rod of the second driving cylinder. The piston rod of the second driving cylinder performs telescopic movement in the horizontal direction to drive the clamping plate to have a second clamping position close to each other and a second release position away from each other relative to the positioning plate. The positioning plate is perpendicular to the horizontal plane, a support plate is provided on the positioning plate, the support plate is parallel to the horizontal plane, and an avoidance notch for avoiding the support plate is provided on the clamping plate.

[0014] Further, the assembly equipment further includes a second hanging bracket disposed above the first assembly device and the second assembly device, and a second welding robot movably disposed on the second hanging bracket; the second assembly device further includes a plurality of pairs of roller structures disposed between the top surface pressing device and the bottom plate pressing device. Each roller structure includes a mounting seat disposed on the side wall of the bottom plate pressing device, a telescopic cylinder disposed on the mounting seat, and a roller disposed on the telescopic rod of the telescopic cylinder. The axis of the roller is perpendicular to the horizontal plane.

[0015] Applying the technical solution of the present invention, the bolster assembly welding production line is used to produce bolsters. The bolster assembly welding production line includes: a material rack, a first track, a first handling robot, a positioning device, an assembly device, a second track, a second handling robot, and a welding processing area. The first track is located on one side of the material rack. The first handling robot is movably arranged on the first track. The material rack is used to place the bottom plate, web plate, and partition plate of the bolster. The positioning device is arranged on the first track and is connected to the first handling robot. Since the positioning device is connected to the first handling robot, during the movement of the first handling robot, the positioning device can move on the first track along with the first handling robot. The positioning device includes a bracket, an inclined plate arranged on the bracket, and a first positioning strip and a second positioning strip arranged on the inclined plate. The first positioning strip and the second positioning strip are arranged at a right angle to each other, and the first opening between the first positioning strip and the second positioning strip faces upward. The assembly device is arranged on the side of the first handling robot away from the material rack. The second track is arranged on the side of the assembly device away from the first handling robot. The second handling robot is movably arranged on the second track. The welding processing area is arranged on the side of the second handling robot away from the assembly device. In this way, taking the web plate as an example, the first handling robot first places the web plate located on the material rack on the positioning device. During the process of placing the web plate, under the action of gravity, the web plate slides along the inclined direction of the inclined plate and stops at the right angle between the first positioning strip and the second positioning strip along the first positioning strip and the second positioning strip. In this way, the web plate is accurately positioned, and then the first handling robot places the web plate that has been adjusted to the accurate position on the assembly device, so that the web plate can be directly placed at the appropriate position on the assembly device without the first handling robot adjusting the position of the web plate again, improving the handling efficiency of the first handling robot, and further improving the assembly welding efficiency of the bolster assembly welding production line. The technical solution of the present application effectively solves the problem of low assembly efficiency of the bolster assembly welding production line in the related art. Similarly, the bottom plate and the partition plate can both be directly placed at the appropriate positions on the assembly device for assembly to obtain the assembled bolster, and then the second handling robot places the assembled bolster into the welding processing area to weld the assembled bolster to obtain the bolster. In this process, no manual participation is required, and the bolster can be produced only through the cooperation among the handling manipulator, the assembly device, and the second handling robot, reducing the safety risks existing in manual cooperative assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The specification drawings forming a part of the present application are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0017] Figure 1 FIG. shows a top view schematic diagram of an embodiment of a bolster assembly welding production line according to the present invention;

[0018] Figure 2 Shows Figure 1 The three-dimensional structure diagram of the centering device of the bolster assembly welding production line and the first handling robot located on the first track;

[0019] Figure 3 Shows Figure 1 The three-dimensional structure diagram of the centering device of the bolster assembly welding production line;

[0020] Figure 4 Shows Figure 1 The three-dimensional structure diagram of the assembly equipment of the bolster assembly welding production line;

[0021] Figure 5 Shows Figure 4 The three-dimensional structure diagram of the first assembly device of the assembly equipment;

[0022] Figure 6 Shows Figure 5 The three-dimensional structure diagram of the web clamping device of the first assembly device;

[0023] Figure 7 Shows Figure 5 The three-dimensional structure diagram of the partition clamping device of the first assembly device;

[0024] Figure 8 Shows Figure 4 The three-dimensional structure diagram of the second assembly device of the assembly equipment;

[0025] Figure 9 Shows Figure 8 The three-dimensional structure diagram of the end face pressing device of the second assembly device;

[0026] Figure 10 Shows Figure 8 The three-dimensional structure diagram of the drum structure of the second assembly device;

[0027] Figure 11 Shows Figure 8 The three-dimensional structure diagram of the second support member of the second assembly device;

[0028] Figure 12 Shows Figure 1 The three-dimensional structure diagram of the web, partition and hanger seat of the bolster assembly welding production line assembled together.

[0029] Among them, the above-mentioned drawings include the following reference numerals:

[0030] 11, web; 12, partition; 13, hanger seat; 14, bottom plate;

[0031] 21. Rack; 22. First track; 23. First handling robot; 24. Second track; 25. Second handling robot;

[0032] 30. Alignment device; 31. Bracket; 32. Tilt plate; 33. First alignment bar; 34. Second alignment bar; 35. Third alignment bar; 36. Fourth alignment bar;

[0033] 40. Assembly equipment; 41. Second hanging bracket; 42. Second welding robot;

[0034] 50. First assembly device; 51. First positioning table; 52. First support; 53. Web clamping device; 531. First column; 532. First positioning wheel; 533. First clamping block; 534. Second clamping block; 54. First driving cylinder; 541. Cylinder block; 542. Rotating shaft;

[0035] 55. Partition clamping device; 551. Second driving cylinder; 552. Positioning plate; 553. Clamping plate; 554. Support plate; 555. Avoidance notch;

[0036] 60. Second assembly device; 61. Second positioning table; 62. Second support; 63. End face pressing device; 64. Top face pressing device; 65. Bottom plate pressing device; 66. Roller structure; 661. Mounting seat; 662. Telescopic cylinder; 663. Roller;

[0037] 70. Welding processing area; 71. Base; 72. First hanging bracket; 73. First welding robot;

[0038] 81. Finished product rack; 82. Flat car. Detailed implementation manner

[0039] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and in no way limits the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0040] It should be noted that the terms used herein are only for describing specific implementation manners and are not intended to limit the exemplary implementation manners according to the present application. As used herein, unless otherwise clearly specified in the context, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "include" and / or "comprise" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0041] Unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that for the sake of convenience in description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationships. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the said technologies, methods, and devices should be regarded as part of the authorization specification. In all the examples shown and discussed here, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, further discussion thereof is not required in subsequent drawings.

[0042] As Figures 1 to 12 shown, the bolster assembly welding production line of this embodiment is used to produce bolsters. The bolster assembly welding production line includes: a material rack 21, a first track 22, a first handling robot 23, an alignment device 30, an assembly device 40, a second track 24, a second handling robot 25, and a welding processing area 70. The first track 22 is located on one side of the material rack 21. The first handling robot 23 is movably arranged on the first track 22. The alignment device 30 is arranged on the first track 22 and is connected to the first handling robot 23. The alignment device 30 includes a bracket 31, an inclined plate 32 arranged on the bracket 31, and a first alignment bar 33 and a second alignment bar 34 arranged on the inclined plate 32. The first alignment bar 33 and the second alignment bar 34 are arranged at a right angle to each other, and the first opening between the first alignment bar 33 and the second alignment bar 34 faces upward. The assembly device 40 is arranged on the side of the first handling robot 23 away from the material rack 21. The second track 24 is arranged on the side of the assembly device 40 away from the first handling robot 23. The second handling robot 25 is movably arranged on the second track 24. The welding processing area 70 is arranged on the side of the second handling robot 25 away from the assembly device 40.

[0043] Applying the technical solution of this embodiment, the bottom plate 14, the web 11, and the partition 12 for placing the bolster are on the rack 21. The alignment device 30 is arranged on the first track 22 and is connected to the first handling robot 23. Since the alignment device 30 is connected to the first handling robot 23, during the movement of the first handling robot, the alignment device 30 can move on the first track 22 along with the first handling robot. The alignment device 30 includes a bracket 31, an inclined plate 32 arranged on the bracket 31, and a first alignment bar 33 and a second alignment bar 34 arranged on the inclined plate 32. The first alignment bar 33 and the second alignment bar 34 are arranged at a right angle to each other, and the first opening between the first alignment bar 33 and the second alignment bar 34 faces upward. The assembly device 40 is arranged on the side of the first handling robot 23 away from the first track 22. The second track 24 is arranged on the side of the assembly device 40 away from the rack 21. The second handling robot 25 is movably arranged on the second track 24. The welding processing area 70 is arranged on the side of the second handling robot 25 away from the assembly device 40. Thus, taking the web 11 as an example, the first handling robot first places the web 11 on the rack 21 on the alignment device 30. During the process of placing the web 11, under the action of gravity, the web 11 slides along the inclined direction of the inclined plate 32 and stops at the right angle between the first alignment bar 33 and the second alignment bar 34 along the first alignment bar 33 and the second alignment bar 34. In this way, the web 11 is accurately positioned, and then the first handling robot places the web 11 that has been adjusted to the accurate position on the assembly device 40, so that the web 11 is directly placed at a suitable position on the assembly device 40 without the first handling robot adjusting the position of the web 11 again, improving the handling efficiency of the first handling robot and further improving the assembly welding efficiency of the bolster assembly welding production line. The technical solution of this embodiment effectively solves the problem of low assembly efficiency in the related art of the bolster assembly welding production line. Similarly, both the bottom plate 14 and the partition 12 can be directly placed at suitable positions on the assembly device 40 for assembly to obtain the assembled bolster, and then the second handling robot 25 places the assembled bolster into the welding processing area 70 to weld the assembled bolster to obtain the bolster. In this process, no manual participation is required, and the bolster can be produced only through the cooperation among the handling manipulator, the assembly device 40, and the second handling robot 25, reducing the safety risks existing in manual cooperative assembly.

[0044] As Figures 1 to 3 shown, the inclined plate 32 is a rectangular plate. The rectangular plate includes an upper edge and a lower edge arranged oppositely and a left edge and a right edge arranged between the upper edge and the lower edge. The first alignment bar 33 is connected to the left edge and the lower edge, and the second alignment bar 34 is connected to the right edge and the lower edge. In this way, both the first alignment bar 33 and the second alignment bar 34 can play the roles of guiding and stopping, so that the web 11 freely slides along the inclined direction of the inclined plate 32 under the action of gravity.

[0045] As Figures 1 to 3 shown, the vertical alignment device 30 further includes a third vertical alignment bar 35 and a fourth vertical alignment bar 36 disposed on the inclined plate 32. The third vertical alignment bar 35 and the fourth vertical alignment bar 36 are disposed at a right angle to each other. The third vertical alignment bar 35 and the fourth vertical alignment bar 36 are located between the left edge and the first vertical alignment bar 33, and the lengths of both the third vertical alignment bar 35 and the fourth vertical alignment bar 36 are less than the length of the first vertical alignment bar 33. The second opening between the third vertical alignment bar 35 and the fourth vertical alignment bar 36 faces upward. In this way, under the action of gravity, the hanging seat 13 slides along the inclined direction of the inclined plate 32 and stops at the right angle between the third vertical alignment bar 35 and the fourth vertical alignment bar 36, thereby accurately positioning the hanging seat 13.

[0046] As Figures 1 to 3 shown, the welding processing area 70 includes a base 71, a first hanging frame 72 disposed on one side of the base 71, and a first welding robot 73 movably disposed on the first hanging frame 72. The base 71 includes a pair of rotating motors and a bottom bracket connected to the motor shafts of the pair of rotating motors. The assembled bolster is clamped on the bottom bracket, and the first welding robot 73 moves from a safe position to a working position. The first welding robot 73 cooperates with the pair of rotating motors to complete the rotary welding of the workpiece. Before welding, the first welding robot 73 determines the weld position through contact positioning; during welding, arc tracking is used to perform real-time tracking of the weld. The bolster assembly welding production line further includes a gun cleaning and wire cutting device disposed on one side of the first welding robot 73. After the first welding robot 73 moves from the working position to the gun cleaning and wire cutting device for gun cleaning and wire cutting, the first welding robot 73 moves to a safe position.

[0047] As Figures 1 to 9As shown in the figure, the assembly device 40 includes: a first assembly device 50 and a second assembly device 60. The first assembly device 50 includes a first positioning table 51, multiple pairs of first support members 52, multiple pairs of web clamping devices 53, and a partition clamping device 55. The multiple first support members 52, the multiple web clamping devices 53, and the partition clamping device 55 are all arranged on the first positioning table 51. The multiple pairs of web clamping devices 53 are located on both sides of the multiple pairs of first support members 52, and the partition clamping device 55 is located between the multiple pairs of first support members 52. Among them, a first assembly space is formed among the multiple first support members 52, the multiple web clamping devices 53, and the partition clamping device 55. The second assembly device 60 is arranged at an interval from the first assembly device 50. The second assembly device 60 includes a second positioning table 61, multiple pairs of second support members 62, multiple pairs of end face pressing devices 63, multiple pairs of top face pressing devices 64, and multiple pairs of bottom plate pressing devices 65. The multiple pairs of second support members 62, the multiple pairs of end face pressing devices 63, a pair of top face pressing devices 64, and the multiple pairs of bottom plate pressing devices 65 are all arranged on the second positioning table 61. The multiple pairs of end face pressing devices 63 are located on both sides of the multiple pairs of second support members 62, a pair of top face pressing devices 64 is located above the multiple pairs of second support members 62, and the multiple pairs of bottom plate pressing devices 65 are located on both sides of a pair of top face pressing devices 64. Among them, a second assembly space is formed among the multiple pairs of second support members 62, the multiple pairs of end face pressing devices 63, a pair of top face pressing devices 64, and the multiple pairs of bottom plate pressing devices 65. The web 11 is placed in the first assembly space by the first handling robot 23. The multiple pairs of first support members 52 support the web 11, and at the same time, the multiple web clamping devices 53 clamp the web 11. Then, the partition 12 is placed in the first assembly space by the first handling robot 23, and the partition clamping device 55 clamps the partition 12. In this way, the first assembly device 50 can clamp the partition 12 and the web 11 together, and then the partition 12 and the web 11 are welded together by a welding robot in the related art. Then, the bottom plate 14 is placed in the second assembly space by the first handling robot 23. The multiple pairs of second support members 62 support the bottom plate 14, and the multiple pairs of bottom plate pressing devices 65 press the bottom plate 14 against the second support members 62. Then, the partition 12 and the web 11 welded together are placed in the second assembly space by the first handling robot 23, so that the partition 12 and the web 11 welded together are located above the bottom plate 14. Then, the end face of the web 11 is pressed by the multiple pairs of end face pressing devices 63, and at the same time, the top face of the web 11 is pressed by a pair of top face pressing devices 64. In this way, the second assembly device 60 can clamp the partition 12, the web 11, and the bottom plate 14 together, and then the partition 12, the web 11, and the bottom plate 14 are welded together by a welding robot in the related art to form a bolster. In this process, no manual participation is required, and the bolster can be produced only through the cooperation among the handling manipulator, the first assembly device 50, and the second assembly device 60, reducing the safety risks existing in manual cooperative assembly.

[0048] AsFigures 1 to 9 and Figure 12 As shown in Figure 12 , the bolster includes two webs 11 arranged in parallel, a partition 12 disposed between the two webs 11, and a bottom plate 14 connected to the bottoms of the two webs 11 and the partition 12. A suspension seat 13 is provided on the outer side surface of each web 11. Among them, the suspension seat 13 includes a horizontal piece vertically connected to the outer side surface of the web 11 and a vertical piece connected to the horizontal piece and the outer side surface of the web 11. In this way, the structural strength of the welded bolster is relatively high, and the first handling robot 23 is used to take out the assembled web 11 and partition 12 from the first assembly space and place them in the second assembly space for positioning and clamping. The first handling robot 23 is used to take out the suspension seat 13 from the alignment device 30 and place it in the second assembly space for positioning and clamping.

[0049] As Figures 1 to 7 and Figure 12 shown in Figure 12 , the web clamping device 53 includes a first column 531, a first positioning wheel 532 provided on one side of the first column 531, a first clamping block 533 provided on one side of the first column 531, and a second clamping block 534 rotatably provided on the first column 531. The first clamping block 533 and the first positioning wheel 532 are located on the same side of the first column 531. The second clamping block 534 has a first clamping position where it approaches each other and a first release position where it moves away from each other relative to the first clamping block 533. The web clamping device 53 further includes a first driving cylinder 54 provided on the first column 531, and the second clamping block 534 is provided on the first driving cylinder 54. When the second clamping block 534 is in the first clamping position, it can clamp the end of the web 11, facilitating the fixation of the web 11 in the first assembly space. When the second clamping block 534 is in the first release position, it can release the end of the web 11, facilitating the removal of the web 11 and the partition 12 together from the first assembly space.

[0050] As Figures 1 to 6 shown in Figures 1 to 6 , the first driving cylinder 54 includes a cylinder block 541, a piston expansion rod disposed in the cylinder block 541, and a rotating shaft 542 rotatably provided on the cylinder block 541. The axis of the rotating shaft 542 is perpendicular to the piston expansion rod. The second clamping block 534 is provided on the rotating shaft 542, and the piston expansion rod is disposed on one side of the rotating shaft 542 and drives the rotating shaft 542 to rotate. Among them, a square through hole is provided on the second clamping block 534, and the rotating shaft 542 includes a square shaft section inserted into the square through hole. In this way, the rotating shaft 542 does not rotate relative to the second clamping block 534, enabling the rotating shaft 542 to drive the second clamping block 534 to rotate synchronously, enabling the second clamping block 534 to switch between the first release position and the first clamping position.

[0051] As Figures 1 to 7 and Figure 12As shown, the partition clamping device 55 includes a second driving cylinder 551 disposed on the first positioning table 51, a positioning plate 552 disposed on the second driving cylinder 551, and a clamping plate 553 disposed on the piston rod of the second driving cylinder 551. The piston rod of the second driving cylinder 551 telescopically moves in the horizontal direction to drive the clamping plate 553 to have a second clamping position close to each other and a second loosening position away from each other relative to the positioning plate 552. The positioning plate is perpendicular to the horizontal plane, and a support plate 554 is disposed on the positioning plate. The support plate 554 can support the partition 12 so that the partition 12 can be stably clamped by the clamping plate 553 and the second clamping plate. The support plate 554 is parallel to the horizontal plane, and an avoidance notch 555 for avoiding the support plate 554 is disposed on the clamping plate 553. When the second clamping plate is in the second clamping position, it can clamp the partition 12, facilitating the fixing of the partition 12 in the first assembly space. When the second clamping plate is in the second loosening position, it can loosen the partition 12, facilitating the removal of the partition 12 and the web 11 from the first assembly space together.

[0052] As Figures 1 to 3 and Figure 12 shown, the assembly device 40 further includes a second hanging bracket 41 disposed above the first assembly device 50 and the second assembly device 60, and a second welding robot 42 movably disposed on the second hanging bracket 41. The second welding robot 42 can weld the web 11 and the partition 12 located in the first assembly space so that the web 11 and the partition 12 can be assembled into an integral body. The second welding robot 42 can also weld the bottom plate 14, the web 11, the partition 12, and the hanging seat 13 located in the second assembly space so that the bottom plate 14, the web 11, the partition 12, and the hanging seat 13 can be assembled into an integral body.

[0053] As Figures 1 to 9 shown, the second assembly device 60 further includes a plurality of pairs of roller structures 66 disposed between the top surface pressing device 64 and the bottom plate pressing device 65. Each roller structure 66 includes a mounting seat 661 disposed on the side wall of the bottom plate pressing device 65, a telescopic cylinder 662 disposed on the mounting seat 661, and a roller 663 disposed on the telescopic rod of the telescopic cylinder 662. The axis of the roller 663 is perpendicular to the horizontal plane. During the process of placing the bottom plate 14 in the second assembly space, the side edge of the bottom plate 14 is in limit fit with the plurality of pairs of roller structures 66 to stably place the bottom plate 14 in the second assembly space.

[0054] As Figures 1 to 12As shown in the figure, by applying the technical solution of the present application, a rack 21 is used to place all the components (web plate 11, partition plate 12, hanging seat 13 and bottom plate 14), and the rack 21 is positioned, and the components are initially positioned to ensure that the first handling robot 23 can accurately grasp all the components. The first handling robot has a gripper composed of two square electro-permanent magnetic chucks and one circular electro-permanent magnetic chuck. Among them, the two square electro-permanent magnetic chucks are fixed on the cylinder and can rotate around the rotating shaft 542. The square electro-permanent magnetic chucks are used to suck large components such as the web plate 11, partition plate 12 and bottom plate 14, and the circular electro-permanent magnetic chuck is used to suck small components such as the hanging seat 13. The square electro-permanent magnetic chucks rotate around the shaft 542 and are driven by a motor to a parallel position to suck semi-finished products and finished products. The gripper realizes the grasping of different components. The first handling robot 23 places all the components on the positioning device 30 for precise positioning to ensure that the robot can accurately place them in the first assembly space and the second assembly space of the assembly device 40. After the assembly device 40 positions and clamps the components in sequence, the second welding robot 42 is used for automatic positioning welding. The second handling robot 25 is used for the transportation and blanking of the bolster. The second handling robot 25 performs automatic position finding, automatic tracking welding, and automatically clears the welding gun after welding. On one side of the welding processing area 70, there are a flat car 82 and two finished product racks 81 arranged at both ends of the flat car 82 at intervals. The flat car 82 is used for the automatic transfer of the finished product racks 81. The welding processing area 70 is equipped with an automatically opening and closing window to ensure smooth feeding and discharging, and can ensure the treatment effect of welding fumes. The bolster assembly welding production line adopts an independent information management system, which can realize the statistics and storage of key information such as the number of finished products, consumption quota, and process parameters, and real-time monitoring of the state of the production line. The product quality is steadily improved. In this way, the manual labor is only responsible for the production line monitoring, the labor intensity is greatly reduced, and the manufacturing cost can be reduced. The process of manufacturing the bolster is green and environmentally friendly.

[0055] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description. Without contrary description, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, so it cannot be understood as a limitation on the protection scope of the present invention; the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0056] For ease of description, spatial relative terms such as "above", "over", "on the upper surface", "upper", etc. can be used here to describe the spatial positional relationship of a device or feature shown in the figure with other devices or features. It should be understood that the spatial relative terms are intended to cover different orientations in use or operation in addition to the orientation depicted in the figure. For example, if the device in the drawing is inverted, a device described as "above" or "over" other devices or structures will then be positioned "below" or "under" other devices or structures when upright. Thus, the exemplary term "above" can include both the orientations of "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and corresponding interpretations of the spatial relative descriptions used here will be made.

[0057] In addition, it should be noted that the use of terms such as "first", "second", etc. to limit components is only for the convenience of differentiating the corresponding components. Without additional statement, the above terms have no special meaning, and thus should not be construed as limiting the protection scope of the present invention.

[0058] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A welding production line for bolster, characterized in that, The bolster assembly welding production line is used for producing bolsters, and the bolster assembly welding production line includes: a material rack (21); a first track (22) located on one side of the material rack (21); a first handling robot (23) movably arranged on the first track (22); an alignment device (30) arranged on the first track (22) and connected to the first handling robot (23). The alignment device (30) includes a bracket (31), an inclined plate (32) arranged on the bracket (31), a first alignment bar (33) and a second alignment bar (34) arranged on the inclined plate (32). The first alignment bar (33) and the second alignment bar (34) are arranged at a right angle to each other, and a first opening between the first alignment bar (33) and the second alignment bar (34) faces upward; an assembly device (40) arranged on the side of the first handling robot (23) away from the material rack (21); a second track (24) arranged on the side of the assembly device (40) away from the first handling robot (23); a second handling robot (25) movably arranged on the second track (24); a welding processing area (70) arranged on the side of the second handling robot (25) away from the assembly device (40); The assembly device (40) includes: a first assembly device (50), which includes a first positioning table (51), multiple pairs of first support members (52), multiple pairs of web clamping devices (53) and a partition clamping device (55). Multiple first support members (52), multiple web clamping devices (53) and the partition clamping device (55) are all arranged on the first positioning table (51). Multiple pairs of web clamping devices (53) are located on both sides of multiple pairs of first support members (52), and the partition clamping device (55) is located between multiple pairs of first support members (52). Among them, a first assembly space is formed among multiple first support members (52), multiple web clamping devices (53) and the partition clamping device (55); The web clamping device (53) includes a first column (531), a first positioning wheel (532) arranged on one side of the first column (531), a first clamping block (533) arranged on one side of the first column (531), and a second clamping block (534) rotatably arranged on the first column (531). The first clamping block (533) and the first positioning wheel (532) are located on the same side of the first column (531). The second clamping block (534) has a first clamping position close to each other and a first release position away from each other relative to the first clamping block (533). The web clamping device (53) further includes a first driving cylinder (54) arranged on the first column (531), and the second clamping block (534) is arranged on the first driving cylinder (54).

2. The welding production line for bolster as claimed in claim 1, wherein, The inclined plate (32) is a rectangular plate. The rectangular plate includes an upper edge and a lower edge arranged opposite to each other, and a left edge and a right edge arranged between the upper edge and the lower edge. The first positioning strip (33) is connected to the left edge and the lower edge, and the second positioning strip (34) is connected to the right edge and the lower edge.

3. The welding production line of bolster as claimed in claim 2, wherein, The positioning device (30) further includes a third positioning strip (35) and a fourth positioning strip (36) arranged on the inclined plate (32). The third positioning strip (35) and the fourth positioning strip (36) are arranged at a right angle to each other. The third positioning strip (35) and the fourth positioning strip (36) are located between the left edge and the first positioning strip (33), and the lengths of both the third positioning strip (35) and the fourth positioning strip (36) are less than the length of the first positioning strip (33). The second opening between the third positioning strip (35) and the fourth positioning strip (36) faces upward.

4. The welding production line for bolster as claimed in claim 1, wherein The bolster includes two webs (11) arranged in parallel, a partition (12) arranged between the two webs (11), and a bottom plate (14) connected to the bottoms of the two webs (11) and the partition (12). A suspension seat (13) is arranged on the outer side surface of each web (11). Wherein, the suspension seat (13) includes a horizontal piece vertically connected to the outer side surface of the web (11) and a vertical piece connected to the horizontal piece and the outer side surface of the web (11).

5. The welding production line of bolster according to claim 1, characterized in that The welding processing area (70) includes a base (71), a first hanging frame (72) arranged on one side of the base (71), and a first welding robot (73) movably arranged on the first hanging frame (72). The base (71) includes a pair of rotating motors and a bottom support connected to the motor shafts of the pair of rotating motors.

6. The welding production line of bolster as claimed in claim 1, wherein The assembly equipment (40) further includes: A second assembly device (60), arranged at an interval from the first assembly device (50). The second assembly device (60) includes a second positioning table (61), multiple pairs of second support members (62), multiple pairs of end surface pressing devices (63), multiple pairs of top surface pressing devices (64), and multiple pairs of bottom plate pressing devices (65). Multiple pairs of the second support members (62), multiple pairs of the end surface pressing devices (63), a pair of the top surface pressing devices (64), and multiple pairs of the bottom plate pressing devices (65) are all arranged on the second positioning table (61). Multiple pairs of the end surface pressing devices (63) are located on both sides of multiple pairs of the second support members (62), a pair of the top surface pressing devices (64) is located above multiple pairs of the second support members (62), and multiple pairs of the bottom plate pressing devices (65) are located on both sides of a pair of the top surface pressing devices (64). Wherein, a second assembly space is formed among multiple pairs of the second support members (62), multiple pairs of the end surface pressing devices (63), a pair of the top surface pressing devices (64), and multiple pairs of the bottom plate pressing devices (65).

7. The welding production line for bolster as claimed in claim 1, wherein, The first driving cylinder (54) includes a cylinder block (541), a piston telescopic rod disposed within the cylinder block (541), and a rotating shaft (542) rotatably disposed on the cylinder block (541). The axis of the rotating shaft (542) is perpendicular to the piston telescopic rod. The second clamping block (534) is disposed on the rotating shaft (542). The piston telescopic rod is disposed on one side of the rotating shaft (542) and drives the rotating shaft (542) to rotate. Wherein, a square through hole is provided on the second clamping block (534), and the rotating shaft (542) includes a square shaft section inserted into the square through hole.

8. The welding production line for bolster as claimed in claim 6, wherein, The partition clamping device (55) includes a second driving cylinder (551) disposed on the first positioning table (51), a positioning plate (552) disposed on the second driving cylinder (551), and a clamping plate (553) disposed on the piston rod of the second driving cylinder (551). The piston rod of the second driving cylinder (551) performs telescopic movement in the horizontal direction to drive the clamping plate (553) to have a second clamping position close to each other and a second release position away from each other relative to the positioning plate (552). The positioning plate is perpendicular to the horizontal plane. A support plate (554) is provided on the positioning plate, and the support plate (554) is parallel to the horizontal plane. An avoidance notch (555) for avoiding the support plate (554) is provided on the clamping plate (553).

9. The bolster assembly welding production line according to claim 6, characterized in that The assembling device (40) further includes a second hanging bracket (41) disposed above the first assembling device (50) and the second assembling device (60), and a second welding robot (42) movably disposed on the second hanging bracket (41); The second assembling device (60) further includes a plurality of pairs of roller structures (66) disposed between the top surface pressing device (64) and the bottom plate pressing device (65). Each roller structure (66) includes a mounting seat (661) disposed on the side wall of the bottom plate pressing device (65), a telescopic cylinder (662) disposed on the mounting seat (661), and a roller (663) disposed on the telescopic rod of the telescopic cylinder (662). The axis of the roller (663) is perpendicular to the horizontal plane.

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