A laser automatic welding device for fan casing processing

Abstract

The present invention relates to the technical field of welding machine tools, and in particular to a laser automatic welding device for processing fan casings, comprising: an automatic welding machine tool; a support table, an upper table surface provided thereon, and a spiral groove and a straight groove provided on the upper table surface; a calibration part, comprising a winding roller provided on the upper table surface, and a wrapping belt provided on the winding roller, and also comprising a guide column provided on the wrapping belt; the guide column is slidably provided in the spiral groove and the straight groove; a pushing part, on which a push rod is provided; a first driving part, for driving the pushing part to rotate on the support table. The first driving part of the present invention controls the rotation of the push rod and pushes the guide column to slide in the spiral groove and the straight groove. The guide column can push the fan casing to achieve preliminary alignment, and then the wrapping belt is wound up by the winding roller, and the fan casing is wrapped by the wrapping belt to achieve secondary alignment, which can effectively improve the alignment efficiency, and there is no need to spot weld the fan casing, thereby improving the welding efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of welding machine tools, in particular to a laser automatic welding device for processing fan casings. Background Art

[0002] The fan needs to maintain a certain degree of sealing during operation. Therefore, the connection parts of the fan casing need to be welded during production to prevent gas leakage from the connection gaps and improve the working efficiency and performance of the fan.

[0003] A fan is usually composed of an upper plate, a lower plate and a middle frame part, and a center hole is opened in the middle of the upper plate and the lower plate. Since the fan casing is usually spiral-shaped, before welding between the multi-layer structures, the upper plate, lower plate and middle frame of the fan need to be aligned in advance, first use spot welding to preliminarily fix them, then use a fixing fixture to fix the fan casing, and finally use laser welding on the machine tool.

[0004] Before using machine tools for laser welding, spot welding and preliminary assembly operations of the fan will reduce the overall production efficiency, and manually aligning the upper plate, lower plate and middle frame of the fan takes a long time. Errors are prone to occur during manual alignment, causing the laser to produce position deviations during automatic welding, resulting in weld leaks. For this reason, the present invention proposes a laser automatic welding device for fan casing processing. Summary of the Invention

[0005] In view of the problem in the above or prior art that spot welding and preliminary assembly operations on the fan reduce the overall production efficiency, the present invention is proposed.

[0006] Therefore, the object of the present invention is to provide a laser automatic welding device for processing fan casing.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: a laser automatic welding device for fan casing processing, comprising: an automatic welding machine; a support table, on which an upper table is provided, and a spiral groove and a straight groove are provided on the upper table; a calibration part, which includes a winding roller arranged on the upper table, and a wrapping belt arranged on the winding roller, and also includes a guide column arranged on the wrapping belt; the guide column is slidably arranged in the spiral groove and the straight groove; a pushing member, on which a push rod is provided; a first driving member, used to drive the pushing member to rotate on the support table.

[0008] As a preferred solution of the laser automatic welding device for fan casing processing of the present invention, it also includes a positioning member arranged on the support platform; the positioning member includes a fixed shaft and a roller shaft rotatably arranged on the fixed shaft, and the outer wall of the roller shaft is provided with a roller.

[0009] As a preferred solution of the laser automatic welding device for fan casing processing of the present invention, wherein: the outer wall of the fixed shaft is rotatably provided with at least three groups of roller shafts; and also includes a connecting piece, and the roller shafts are connected by the connecting piece.

[0010] As a preferred solution of the laser automatic welding device for processing fan casing of the present invention, the connecting member includes an arc frame and a connecting column; the arc frame on the roller shaft is connected to the connecting column on the adjacent roller shaft.

[0011] As a preferred solution of the laser automatic welding device for processing fan casing of the present invention, it further includes a second driving member, and the second driving member is used to drive the roller shaft to rotate on the outer wall of the fixed shaft.

[0012] As a preferred solution of the laser automatic welding device for fan casing processing of the present invention, it further includes: a fixing part arranged on the roller shaft; a cavity is provided in the roller shaft, and an air pipe is provided at one end of the roller shaft; the fixing part includes a sliding rod slidably arranged in the roller shaft, and a piston is provided at the end of the sliding rod, and a rubber block is provided at one end of the sliding rod.

[0013] As a preferred solution of the laser automatic welding device for processing fan casing of the present invention, the support platform includes a support seat, the upper table is arranged on the top of the support seat, and a placement platform is provided on the upper table.

[0014] As a preferred solution of the laser automatic welding device for fan casing processing of the present invention, wherein: the pushing member includes a rotating disk rotatably arranged in the support seat, and a gear block arranged on the rotating disk; the first driving member includes a first motor arranged on the support seat, and a first gear arranged on the first motor.

[0015] As a preferred solution of the laser automatic welding device for fan casing processing of the present invention, the second driving member includes a second gear rotatably arranged on the fixed shaft, and a second motor arranged on the support seat, and the second motor is provided with a third gear.

[0016] As a preferred solution of the laser automatic welding device for processing fan casing of the present invention, the straight groove and the spiral groove are arranged tangentially at their maximum diameters.

[0017] The beneficial effects of the laser automatic welding device for fan casing processing of the present invention: the first driving member of the present invention controls the rotation of the push rod and pushes the guide column to slide in the spiral groove and the straight groove. The guide column can push the fan casing to achieve preliminary alignment, and then the wrapping tape is wound by the winding roller, and the fan casing is wrapped by the wrapping tape to achieve secondary alignment, which can effectively improve the alignment efficiency. There is no need to spot weld the fan casing, thereby improving the welding efficiency, and the flexible wrapping of the wrapping tape can protect the fan casing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is a schematic diagram of the overall structure of the laser automatic welding device used for fan casing processing.

[0020] Figure 2 This is a reference diagram of the usage status of the laser automatic welding device for fan casing processing.

[0021] Figure 3 This is a schematic diagram of the internal structure of the support platform of the laser automatic welding device for fan casing processing.

[0022] Figure 4 Schematic diagram of the connection structure of the spiral groove and the straight groove on the support platform.

[0023] Figure 5 This is a schematic diagram of the structure of the driving part of the laser automatic welding device for fan casing processing.

[0024] Figure 6 This is a schematic diagram of the connection structure of the positioning parts and connecting parts of the laser automatic welding device for fan casing processing.

[0025] Figure 7 This is a schematic diagram of the internal structure of the drum of the laser automatic welding device used for fan casing processing.

[0026] Figure 8 This is a reference diagram of the guide pin near the end with the smallest diameter of the spiral groove.

[0027] Figure 9 This is a reference diagram of the guide post located in the middle of the spiral groove.

[0028] Figure 10 This is a reference diagram of the state where the guide pin is located at the end with the smallest diameter of the spiral groove.

[0029] Figure 11 The following figure is a reference diagram for the placement of the fan casing.

[0030] In the figure: 1. automatic welding machine; 2. support table; 21. support base; 22. upper table; 221. spiral groove; 222. straight groove; 23. placing table; 3. calibration part; 31. winding roller; 32. wrapping belt; 33. guide column; 4. pushing member; 41. push rod; 42. rotating disk; 43. gear block; 5. first driving member; 51. first motor; 52. first gear; 6. positioning member; 61. fixed shaft; 62. roller shaft; 621. cavity; 622. air pipe; 63. roller; 7. connecting member; 71. arc frame; 72. connecting column; 8. second driving member; 81. second gear; 82. second motor; 83. third gear; 9. fixing member; 91. slide rod; 92. rubber block; 93. piston; 100. lower plate of fan; 200. middle frame of fan; 300. upper plate of fan. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0032] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0033] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive of other embodiments.

[0034] Example 1, reference Figures 1 to 11 , which is the first embodiment of the present invention, provides a laser automatic welding device for processing a fan casing, including an automatic welding machine 1; the automatic welding machine 1 uses laser welding to automatically weld the fan casing.

[0035] The support platform 2 is provided with an upper surface 22 , on which a spiral groove 221 and a straight groove 222 are provided; the spiral groove 221 and the straight groove 222 are connected, and the maximum diameters of the straight groove 222 and the spiral groove 221 are tangent.

[0036] The calibration part 3 includes a winding roller 31 arranged on the upper table 22, and a wrapping belt 32 arranged on the winding roller 31, and also includes a guide column 33 arranged on the wrapping belt 32; the winding roller 31 is an electric winding roller, which can realize the winding operation of the wrapping belt 32 by itself, and the wrapping belt 32 can be a belt or a rubber belt. The guide column 33 is slidably arranged in the spiral groove 221 and the straight groove 222; the guide column 33 can slide along the track formed by the spiral groove 221 and the straight groove 222.

[0037] Pushing member 4, which is provided with a push rod 41; Figure 10 At this time, when the guide column 33 is located at the minimum diameter of the spiral groove 221, the rotation radius of the push rod 41 on the support platform 2 is the distance from the guide column 33 at the minimum diameter of the spiral groove 221 to the center of the support platform 2.

[0038] The first driving member 5 is used to drive the pushing member 4 to rotate on the support platform 2. When the guide column 33 is not located at the minimum diameter of the spiral groove 221, the pushing member 4 can push the guide column 33 to slide through the push rod 41 during rotation.

[0039] Preferably, the size of the spiral groove 221 matches the outline size of the fan housing.

[0040] Since the fan casing is in the shape of a volute, its outer surface profile is also spiral. Figure 2 First, place the fan lower plate 100 on the support platform 2, then place the fan middle frame 200 and the fan upper plate 300 in sequence, and stack them. When stacking, pay attention to the fan outlet facing the end with the smaller diameter of the spiral groove 221. Figure 11 After the stacking is completed, the first driving member 5 controls the pushing member 4 to rotate, so that the push rod 41 pushes the guide column 33 from the straight groove 222 to slide into the spiral groove 221. During this process, the wrapping belt 32 can be released by the winding roller 31 to increase its length. Since a part of the fan outlet is extended, when the guide column 33 moves in the spiral groove 221, it will conflict with the extended part of the fan outlet, thereby aligning the fan lower plate 100, the fan middle frame 200, and the fan upper plate 300. Figure 8, until the guide post 33 moves to the minimum diameter close to the spiral groove 221, the push rod 41 at this time can still resist the guide post 33, and the wrapping belt 32 wraps most of the outer surface of the fan. Therefore, the wrapping belt 32 can be rolled up by the winding roller 31 at this time. After rolling up, the wrapping belt 32 will be attached to the outside of the fan, and the wrapping belt 32 will wrap the fan lower plate 100, the fan middle frame 200, and the fan upper plate 300. The pressure provided by the wrapping belt 32 will enable the fan lower plate 100, the fan middle frame 200, and the fan upper plate 300 to be automatically aligned. Since the outer surface contours of the fan lower plate 100, the fan middle frame 200, and the fan upper plate 300 are all spiral, if the layers are not in an aligned state, the wrapping belt 32 will generate thrust to act on the deviation position, so that the fan lower plate 100, the fan middle frame 200, and the fan upper plate 300 are finally in an aligned state.

[0041] After the alignment is completed, the pusher 4 is directly rotated in the opposite direction so that the push rod 41 pushes the guide column 33 back into the straight groove 222. During this process, the wrapping belt 32 can be slightly released by the winding roller 31 to avoid the wrapping belt 32 from hitting the fan casing when the guide column 33 returns to the straight groove 222. In addition, since the wrapping belt 32 is spiral at the beginning, the wrapping belt 32 will move toward the area away from the fan when the guide column 33 is pushed back to avoid pushing the aligned fan.

[0042] After the fan is aligned, the fan lower plate 100 , the fan middle frame 200 , and the fan upper plate 300 are welded by the automatic welding machine 1 .

[0043] The straight groove 222 and the spiral groove 221 are tangent to each other at their maximum diameters, so that the wrapping belt 32 can fit on the plane on one side of the fan outlet to improve the positioning effect.

[0044] Specifically, the support platform 2 includes a support base 21, an upper table 22 is arranged at the top of the support base 21, and a placement platform 23 is provided on the upper table 22. The placement height of the fan casing is increased by the placement platform 23, so that the wrapping belt 32 can wrap the fan lower plate 100, the fan middle frame 200, and the fan upper plate 300 more comprehensively to improve the alignment effect.

[0045] Furthermore, the pushing member 4 includes a rotating disk 42 rotatably arranged in the support base 21, and a gear block 43 arranged on the rotating disk 42; the gear block 43 is evenly distributed on the inner wall of the rotating disk 42, and the first driving member 5 includes a first motor 51 arranged on the support base 21, and a first gear 52 arranged on the first motor 51, and the first gear 52 and the gear block 43 are in a meshing state.

[0046] During use, the first motor 51 is operated to rotate the first gear 52, and the rotation of the first gear 52 drives the gear block 43 to move, thereby causing the rotating disk 42 to rotate. The push rod 41 is fixedly set on the rotating disk 42, and when the rotating disk 42 rotates, it can drive the push rod 41 to move together.

[0047] Example 2, reference Figures 1 to 10 , which is the second embodiment of the present invention. Different from the previous embodiment, it further includes a positioning member 6 arranged on the support platform 2; the positioning member 6 includes a fixed shaft 61, and a roller shaft 62 rotatably arranged on the fixed shaft 61, and a roller 63 is provided on the outer wall of the roller shaft 62. The fixed shaft 61 is fixed on the support seat 21, and the roller 63 is vertically arranged on the outer wall of the roller shaft 62. The roller 63 can roll on the outer wall of the roller shaft 62.

[0048] The roller 63 is used to limit the placement positions of the fan lower plate 100 and the fan upper plate 300 .

[0049] Specifically, at least three groups of roller shafts 62 are rotatably provided on the outer wall of the fixed shaft 61 ; a connecting member 7 is also included, and the roller shafts 62 are connected by the connecting member 7 .

[0050] In this embodiment, referring to Figure 6 , four sets of roller shafts 62 are rotatably provided on the outer wall of the fixed shaft 61, and the distance between the axis center of the four sets of roller shafts 62 and the axis center of the fixed shaft 61 is equal to the center hole radius of the fan lower plate 100 and the fan upper plate 300 of the fan to be welded. It should be noted that the optimal welding object of the present invention is a fan with the same center hole diameter of the fan lower plate 100 and the fan upper plate 300. For fans with different center hole diameters of the fan lower plate 100 and the fan upper plate 300, the distance between the axis center of the four sets of roller shafts 62 and the axis center of the fixed shaft 61 is equal to the one with the smallest center hole radius of the fan lower plate 100 and the fan upper plate 300 of the fan to be welded. Therefore, when the equipment is actually used, the distance between the roller shaft 62 and the fixed shaft 61 can be adjusted by a variable-pitch connecting rod structure. Since it is not the content to be protected by the present invention and the existing technology is relatively mature, it will not be elaborated here. The distance between the roller shaft 62 and the fixed shaft 61 in the present invention is a fixed distance.

[0051] When in use, the roller shafts 62 are rotated so that the roller shafts 62 are close to each other to the minimum state, which can be referred to Figure 6, since the roller shafts 62 are close to each other, the overall space occupied is reduced, and it is convenient for the user to put the fan lower plate 100, the fan middle frame 200, and the fan upper plate 300 on the outside of the roller 63 of the positioning member 6. After the sleeve is completed, the roller shaft 62 is rotated so that the roller shaft 62 can be evenly distributed on the outer wall of the fixed shaft 61. Multiple roller shafts 62 can form the center positioning of the fan lower plate 100, the fan middle frame 200, and the fan upper plate 300, so as to improve the alignment efficiency and effect, and facilitate the wrapping belt 32 to align the fan lower plate 100, the fan middle frame 200, and the fan upper plate 300 by wrapping. After the welding is completed, the overall space occupied can be reduced by rotating the roller shaft 62. After the support and limitation of the center hole of the fan casing by multiple roller shafts 62 are lost, the welded fan casing is easier to remove.

[0052] Furthermore, the connecting member 7 includes an arc frame 71 and a connecting column 72 ; the arc frame 71 on the roller shaft 62 is connected to the connecting column 72 on the adjacent roller shaft 62 .

[0053] Reference Figure 6 The number of connecting members 7 is one group less than that of the roller shafts 62. The multiple roller shafts 62 are connected in sequence through the connecting members 7 without being connected end to end. The multiple groups of connecting members 7 are staggered from top to bottom. The arc frame 71 and the connecting column 72 of the connecting member 7 in each group are respectively arranged on the outer wall of the two adjacent roller shafts 62, and the arc frame 71 and the connecting column 72 of the two adjacent roller shafts 62 are slidably connected. Figure 6 In the figure, four roller shafts 62 are set as the first roller shaft, the second roller shaft, the third roller shaft and the fourth roller shaft from right to left. The first roller shaft, the second roller shaft and the third roller shaft are all provided with an arc frame 71, and the second roller shaft, the third roller shaft and the fourth roller shaft are all provided with a connecting column 72.

[0054] It should be noted that the plurality of roller shafts 62 of the present invention can all be rotatably connected to the fixed shaft 61, or the roller shaft 62 at the starting end or the end end can be fixedly connected to the fixed shaft 61. For example, referring to Figure 6, the first roller shaft on the far right is fixedly connected to the fixed shaft 61, and the remaining second roller shafts, third roller shafts, and fourth roller shafts are all rotatably connected to the fixed shaft 61; when the fourth roller shaft is rotated, the fourth roller shaft rotates first, and after rotating to a certain angle, the connecting column 72 on the fourth roller shaft contacts the arc frame 71 on the third roller shaft. At this time, continuing to rotate will pull the arc frame 71 on the third roller shaft through the connecting column 72 on the fourth roller shaft, so that the third roller shaft rotates, thereby realizing the fourth roller The rotation of the axis, the third roller axis, and the second roller axis in sequence causes multiple roller axis 62 to be deployed in sequence. Since the center position of the rotation of the roller axis 62 is fixed, which is the axis center of the fixed axis 61, the roller axis 62 can realize the automatic positioning of the center holes of the lower plate 100 and the upper plate 300 of the fan after being deployed in sequence. After the welding of the fan shell is completed, the fourth roller axis can be rotated in the opposite direction, and the third roller axis can be pushed by the fourth roller axis, and the third roller axis can push the second roller axis until they are in a fit state with each other and restored to Figure 6 state, it is now easy to remove the welded fan casing.

[0055] The second driving member 8 is further included, and the second driving member 8 is used to drive the roller shaft 62 to rotate on the outer wall of the fixed shaft 61.

[0056] It should be noted that the second driving member 8 is used to drive one of the two adjacent roller shafts 62 that are not connected by the connecting member 7 to rotate.

[0057] Reference Figure 6 The rightmost roller shaft 62 and the leftmost roller shaft 62 are not connected by the connecting member 7, so the second driving member 8 can choose to drive any one of the roller shafts 62 to rotate. Figure 6 In the embodiment, the connection between the leftmost roller shaft 62 and the second driving member 8 is selected.

[0058] The second driving member 8 includes a second gear 81 rotatably mounted on the fixed shaft 61, and a second motor 82 mounted on the support base 21. The second motor 82 is provided with a third gear 83. The second gear 81 and the third gear 83 are meshed with each other. The operation of the second motor 82 can rotate the third gear 83, and the third gear 83 drives the second gear 81 to rotate. The second gear 81 and the third gear 83 are meshed with each other. Figure 6 The leftmost roller shaft 62 is fixedly connected, so the second driving member 8 can control the rotation operation of the roller shaft 62.

[0059] When placing the fan lower plate 100, the fan middle frame 200, and the fan upper plate 300, first move the multiple roller shafts 62 to Figure 6The fan lower plate 100, the fan middle frame 200 and the fan upper plate 300 are in a gathered state. At this time, the difficulty of stacking the fan lower plate 100, the fan middle frame 200 and the fan upper plate 300 is reduced. After the stacking is completed, the second driving member 8 controls the roller shaft 62 to rotate in sequence, and the center of the fan lower plate 100 and the fan upper plate 300 are supported and limited for preliminary positioning. Then, the guide column 33 is pushed by the push rod 41, and the guide column 33 slides along the spiral groove 221, and then the wrapping belt 32 is wound up by the winding roller 31, and the fan lower plate 100, the fan middle frame 200 and the fan upper plate 300 are aligned by the wrapping belt 32.

[0060] Example 3, reference Figures 1 to 10 , which is the third embodiment of the present invention. Different from the previous embodiment, it further includes a fixing member 9 arranged on the roller shaft 62; a cavity 621 is provided in the roller shaft 62, and an air pipe 622 is provided at one end of the roller shaft 62; the air pipe 622 is connected to the cavity 621, and the air pipe 622 is connected to an external air pump, which can evacuate or inflate the cavity 621.

[0061] The fixing part 9 includes a sliding rod 91 slidingly arranged in the roller shaft 62, and a piston 93 arranged at the end of the sliding rod 91. A rubber block 92 is provided at one end of the sliding rod 91. The piston 93 is slidably arranged in the cavity 621. The air is exhausted or inflated by the air pipe 622, which can pull or push it up and down, thereby pressing the rubber block 92 on the upper plate 300 of the fan to fix the fan casing.

[0062] In the initial state, the guide column 33 is located at one end of the straight groove 222 close to the winding roller 31, and multiple roller shafts 62 are close to each other. At this time, the space on the support platform 2 is the largest, and because the roller shafts 62 are in a gathered state, the fan lower plate 100, the fan middle frame 200, and the fan upper plate 300 can be more easily put on the outside of the roller 63.

[0063] After the fan lower plate 100, the fan middle frame 200, and the fan upper plate 300 are sleeved on the outside of the drum 63, the second driving member 8 controls the multiple roller shafts 62 to rotate in sequence, first positioning the center of the fan lower plate 100 and the fan upper plate 300, and then pushing the guide column 33 to slide into the spiral groove 221 through the push rod 41. The state diagram of the guide column 33 sliding in the spiral groove 221 is shown in FIG. Figure 9 During the sliding process of the guide column 33, the secondary alignment can be completed by contacting the air outlet of the fan, referring to Figure 8When the guide post 33 slides to the minimum diameter close to the spiral groove 221, the push rod 41 can still resist the guide post 33, and the wrapping belt 32 wraps most of the outer surface of the fan. At this time, the wrapping belt 32 is wound and straightened by the winding roller 31, and the third alignment is performed by the wrapping force exerted by the wrapping belt 32. Since the wrapping belt 32 can be selected as a rubber belt or a belt, both the rubber belt and the belt have a certain degree of extensibility. Therefore, at this time, the guide post 33 can be pushed to continue sliding by continuing to rotate the push rod 41. Figure 10 , until the guide post 33 moves to the minimum diameter of the spiral groove 221, at which time the push rod 41 just loses the interference with the guide post 33. At this time, the wrapping force applied is the largest, completing the fourth alignment. At the same time, the air in the cavity 621 is evacuated through the air pipe 622, causing the piston 93 to slide down, causing the rubber block 92 to press on the upper plate 300 of the fan, completing the clamping and fixation of the aligned fan housing.

[0064] Reference Figure 10 Since the push rod 41 no longer conflicts with the guide column 33 and the fan casing has been clamped and fixed, the wrapping tape 32 can be directly rolled up by the winding roller 31. Under the guidance of the surface contour of the fan casing, the guide column 33 is reset to the straight groove 222. Then the automatic welding machine 1 performs laser welding. After welding is completed, the second driving member 8 controls the multiple roller shafts 62 to gather together and remove the welded fan casing.

[0065] The fan housing is compressed and fixed by the fixing member 9 to ensure the welding effect. After the welding is completed, the gathered roller shaft 62 can solve the problem of increased difficulty in disassembly caused by the presence of the rubber block 92.

[0066] In summary, during the entire process of aligning the fan casing, the force applied is the largest only when it is wrapped by the wrapping belt 32. Since the fan casing is generally thin, the force provided by conventional machinery during calibration cannot be too large. However, due to the volute structure of the fan casing, if the wrapping belt 32 is used to wrap it evenly, a larger force can be applied for calibration, and the fan casing is evenly stressed, and the wrapping belt 32 can apply a flexible force to protect the fan casing.

[0067] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A laser automatic welding device for fan casing processing, characterized by: include, Automatic welding machine (1); A support platform (2) is provided with an upper surface (22), wherein the upper surface (22) is provided with a spiral groove (221) and a straight groove (222); A calibration member (3), comprising a winding roller (31) disposed on the upper table (22), a wrapping belt (32) disposed on the winding roller (31), and a guide post (33) disposed on the wrapping belt (32); The guide column (33) is slidably arranged in the spiral groove (221) and the straight groove (222); A push member (4) having a push rod (41) provided thereon; A first driving member (5) is used to drive the pushing member (4) to rotate on the supporting platform (2); It also includes a positioning member (6) provided on the support platform (2); The positioning member (6) comprises a fixed shaft (61) and a roller shaft (62) rotatably arranged on the fixed shaft (61), and a roller (63) is provided on the outer wall of the roller shaft (62); At least three groups of roller shafts (62) are rotatably provided on the outer wall of the fixed shaft (61); It also includes a connecting member (7), and the roller shafts (62) are connected via the connecting member (7); The connecting member (7) comprises an arc-shaped frame (71) and a connecting column (72); The arc-shaped frame (71) on the roller shaft (62) is connected to the connecting column (72) on the adjacent roller shaft (62); It also includes a second driving member (8), the second driving member (8) is used to drive the roller shaft (62) to rotate on the outer wall of the fixed shaft (61); It also includes a fixing member (9) provided on the roller shaft (62); A cavity (621) is provided in the roller shaft (62), and an air pipe (622) is provided at one end of the roller shaft (62); The fixing member (9) comprises a sliding rod (91) slidably arranged in the roller shaft (62), and a piston (93) arranged at the end of the sliding rod (91). A rubber block (92) is provided at one end of the sliding rod (91).

2. The laser automatic welding device for fan casing processing according to claim 1, characterized in that: The support platform (2) comprises a support seat (21), the upper table surface (22) is arranged at the top end of the support seat (21), and a placement platform (23) is provided on the upper table surface (22).

3. The laser automatic welding device for fan casing processing according to claim 2, characterized in that: The pushing member (4) comprises a rotating disk (42) rotatably arranged in the support seat (21), and a tooth block (43) arranged on the rotating disk (42); The first driving member (5) comprises a first motor (51) provided on the support seat (21), and a first gear (52) provided on the first motor (51).

4. The laser automatic welding device for fan casing processing according to claim 3, characterized in that: The second driving member (8) comprises a second gear (81) rotatably arranged on the fixed shaft (61), and a second motor (82) arranged on the support seat (21), wherein the second motor (82) is provided with a third gear (83).

5. The automatic laser welding device for fan casing processing according to any one of claims 1 to 4, characterized in that: The straight groove (222) and the spiral groove (221) are arranged tangentially at their maximum diameters.

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