Carbon steel impeller assembly welding device and method

Abstract

The invention discloses a carbon steel impeller assembly and welding device and method, comprising a main body, a central axis, a central support ring, a pressure plate, a cone disk centering assembly, an impeller orientation group, a main body reverse installation and an impeller orientation group reverse installation; the main body comprises a base plate, a tray, a support plate, a lower column and a cushion block; the base plate and the support plate are connected by a plurality of lower columns distributed in an array, a tray is arranged between the base plate and the support plate, and a cushion block is arranged on the lower end surface of the tray; the central axis comprises a central support, a positioning plate, a diamond pin, a screw and a connecting shaft; a positioning plate is arranged on the upper end of the central support. The present application is easy to operate, has accurate and fast positioning, and the positioning accuracy is ensured by machine tool processing. The forward-rotating blade reference side positioning group and the reverse-rotating blade pressing group are used to disengage 12 groups of blades at a time for positioning, and the material removal is fast, thereby improving the production efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of automated welding, and relates to an assembling welding device, and in particular to an assembling welding device and method for a carbon steel impeller. Background Art

[0002] The traditional carbon steel impeller is assembled and welded by welding one set of blades to the upper cone disk and the center disk respectively, and then welding another set of blades to the lower cone disk and the center disk respectively. At present, the existing impeller welding method usually adopts manual welding, drawing auxiliary lines on the center disk of the impeller, and then welding the blades one by one to the center disk, and finally welding the upper and lower cone disks to the top of the blades. The step of welding the blades is very important. The accuracy of blade welding will directly affect the quality of the entire impeller. The efficiency of manual welding of blades is extremely low, and the welding accuracy is not high, the product qualification rate is low, and manpower, material resources and costs are wasted. Therefore, it is necessary to design a carbon steel impeller assembly welding device and method that is easy to operate and accurately positioned.

[0003] According to the special structure of carbon steel impeller, this device is easy to use and the blades are intact without damage by improving the quick clamp and ring. Summary of the invention

[0004] The object of the present invention is to provide a carbon steel impeller assembly welding device and method to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A carbon steel impeller assembly and welding device, comprising a main body, a center shaft, a center support ring, a pressure plate, a cone disk centering assembly, an impeller orientation group, a main body reverse assembly and an impeller orientation group reverse assembly; the main body comprises a bottom plate, a tray, a support plate, a lower column and a cushion block; the bottom plate and the support plate are connected by a plurality of lower columns distributed in an array, a tray is arranged between the bottom plate and the support plate, and a cushion block is arranged on the lower end surface of the tray; the center shaft comprises a center support, a positioning plate, a diamond pin, a screw and a connecting shaft; the upper end of the center support is provided with a positioning plate, the diamond pin is arranged on the upper end surface of the positioning plate, and the upper end of the center support is connected to the screw through a connecting shaft; The central support ring includes a limit block, a base, a No. 1 quick clamp, a circular ring and a lifting eye screw; the circular ring is arranged in the middle of the base, the lifting eye screw passes through the surface of the base close to the circular ring, at least four No. 1 quick clamps are arranged, and the array is distributed on the outside of the base, and each No. 1 quick clamp is provided with a limit block; the cone centering assembly includes a shaft sleeve and a main body; the shaft sleeve passes through a through hole at the center of the main body, and the two are fixed by bolt connection; the impeller orientation group includes a blade reference side positioning group and a blade clamping group matched therewith; the impeller orientation group includes a blade reference side positioning group and a blade clamping group matched therewith.

[0007] As a further solution of the present invention: the blade reference side positioning group includes an adjusting block, a fixing block, a sleeve, a main body, plate one, No. 2 quick clamps, guide pins and standard parts welded together; the sleeve is inserted into the hole position of the main body, and guide pins and standard parts welded together are provided on the outside of the sleeve; the adjusting block and the fixing block are arranged on the main body surface outside the sleeve, and the No. 2 quick clamp is also arranged on the main body surface outside the sleeve; and a plurality of plate one are provided, and an array is distributed on the outside of the main body.

[0008] As a further solution of the present invention: the blade pressing group includes plate four, plate five and plate seven.

[0009] As a further solution of the present invention: the base is further provided with at least two symmetrically arranged arc-shaped holes.

[0010] As a further solution of the present invention: the diamond pin corresponds to the positioning hole on the surface of the carbon steel impeller centering disk to be processed.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1) Easy to operate, accurate and fast positioning, positioning accuracy is ensured by machine tool processing, 12 sets of blade positioning are separated at one time through the forward blade reference side positioning group and the reverse blade pressing group, the material removal is fast, and the production efficiency is improved;

[0013] 2) QT450 (ductile iron) is used for the parts that are frequently disassembled and assembled to reduce the friction coefficient, making disassembly and assembly flexible, saving time and effort; QT450 has excellent cutting performance, which reduces the difficulty and cost of processing;

[0014] 3) Stable operation: The impeller orientation group is installed forward and backward, and the impeller orientation group is matched with the clearance between the center axis through the hole and the axis respectively. Such mechanical matching has high reliability, making the disassembly and assembly stable and reliable, and improving the product qualification rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the front structure of the carbon steel impeller of the present invention;

[0016] Figure 2 This is a schematic diagram of the front structure of the carbon steel impeller of the present invention from the axial side;

[0017] Figure 3 It is a cross-sectional view of the assembled and welded front part of the present invention;

[0018] Figure 4 It is a schematic axial view of the assembled and welded assembly of the present invention;

[0019] Figure 5 It is a cross-sectional view of the assembly welding reverse assembly of the present invention;

[0020] Figure 6 It is a schematic diagram of the axial side of the assembly welding reverse assembly of the present invention;

[0021] Figure 7 This is a schematic diagram of the front structure of the main body of the present invention;

[0022] Figure 8 It is a schematic diagram of the front structure of the main body of the present invention from the axial side;

[0023] Fig. 9 This is a schematic diagram of the front structure of the central axis;

[0024] Fig.10 This is a schematic diagram of the central support ring shaft side;

[0025] Fig.11 This is a schematic diagram of the front structure of the cone centering assembly;

[0026] Fig.12 This is the AA section view of the cone centering assembly;

[0027] Fig.13 This is a schematic diagram of the front structure of the impeller orientation group;

[0028] Fig.14 This is a schematic diagram of the axial side of the blade reference side positioning group;

[0029] Fig.15 This is a schematic diagram of the front structure of the blade pressing group;

[0030] Fig.16 This is a schematic diagram of the front structure of the reverse-installed impeller orientation group.

[0031] In the figure: 1. Center disk, 2. Blade, 3. Lower center ring, 4. Upper center ring, 5. Lower cone disk, 6. Upper cone disk, 7. Main body, 8. Center shaft, 9. Center support ring, 10. Pressure plate, 11. Cone disk centering assembly, 12. Impeller orientation assembly, 14. Impeller orientation assembly, 15. Bottom plate, 16. Tray, 17. Support plate, 18. Lower column, 19 Pad, 20. Center support, 21. Positioning plate, 22. Diamond pin, 23. Screw, 24. Connecting shaft, 25. Limit block, 26. Base, 27. No. 1 quick clamp, 28. Ring, 29. Eyebolt, 31. Main body, 32. Blade reference side positioning group, 33. Blade clamping group, 34. Adjustment block, 35. Fixed block, 36. Bushing, 38. Plate 1, 39. No. 2 quick clamp, 40. Guide pin, 41. Standard parts welding, 42. Plate 4, 43. Plate 5, 44. Plate 7, 45. Blade reference side positioning group reverse installation, 46. Blade clamping group reverse installation. DETAILED DESCRIPTION

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0033] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Example 1

[0036] See also Figure 1-16In an embodiment of the present invention, a carbon steel impeller assembly welding device includes a main body assembly 7, a central axis 8, a central support ring 9, a pressure plate 10, a cone disk centering assembly 11, an impeller orientation group assembly 12, a main body reverse assembly and an impeller orientation group reverse assembly 14; the main body assembly 7 includes a bottom plate 15, a tray 16, a support plate 17, a lower column 18 and a cushion block 19; the bottom plate 15 and the support plate 17 are connected by a plurality of lower columns 18 distributed in an array, a tray 16 is provided between the bottom plate 15 and the support plate 17, and a cushion block 19 is provided on the lower end surface of the support plate 17; the central axis 8 includes a central support 20, a positioning plate 21, a diamond pin 22, a screw 23, and a connecting shaft 24; the upper end of the central support 20 is provided with a positioning plate 21, and the diamond pin 22 is arranged on the upper end surface of the positioning plate 21, and the upper end of the central support 20 is connected to the connecting shaft 24 The screw rod 23 is connected; the central support ring 9 includes a limit block 25, a base 26, a No. 1 quick clamp 27, a circular ring 28 and a lifting eye screw 29; the circular ring 28 is arranged in the middle of the base 26, and the lifting eye screw 29 passes through the surface of the base 26 near the circular ring 28. At least four No. 1 quick clamps 27 are arranged, and the array is distributed on the outside of the base 26, and each No. 1 quick clamp 27 is provided with a limit block 25; the cone centering assembly 11 includes a sleeve 36 and a main body 31; the sleeve 36 passes through the through hole at the center of the main body 31, and the two are fixed by bolt connection; the impeller orientation group positive installation 12 includes a blade reference side positioning group 32 and a blade pressing group 33 matched therewith; the impeller orientation group reverse installation 14 includes a blade reference side positioning group reverse installation 45 and a blade pressing group reverse installation 46 matched therewith;

[0037] The blade reference side positioning group 32 includes an adjusting block 34, a fixing block 35, a sleeve 36, a main body 31, a plate 1 38, a No. 2 quick clamp 39, a guide pin 40 and a standard part weld 41. The sleeve 36 is inserted into the hole position of the main body 31, and a guide pin 40 and a standard part weld 41 are provided on the outside of the sleeve 36. The adjusting block 34 and the fixing block 35 are arranged on the surface of the main body 31 outside the sleeve 36. The No. 2 quick clamp 39 is also arranged on the surface of the main body 31 outside the sleeve 36. There are a plurality of plates 1 38, and the array is distributed on the outside of the main body 31.

[0038] The blade pressing group 33 includes a plate 42, a plate 5 43 and a plate 7 44;

[0039] The carbon steel impeller to be welded in this application includes an upper cone disk 6 , blades 2 , a center disk 1 , an upper center ring 4 , a lower center ring 3 and a lower cone disk 5 .

[0040] The working principle of the present invention is: the above-mentioned carbon steel impeller assembly welding device can work according to the following process:

[0041] In the first step, the center disk 1 is manually placed, the center axis 8 is used for centering, and the diamond pin 22 is used for positioning the center disk 1 in the circumferential direction.

[0042] In the second step, the center support ring 9 is placed into the center shaft 8, and the pins on the center shaft 8 are inserted into the grooves on the circular ring 28 on the center support ring 9 to position the center support ring 9 in the circumferential direction.

[0043] In the third step, the upper center ring 4 is placed into the limit block 25 on the center support ring 9 , and the four No. 1 quick clips 27 on the center support ring 9 are opened in sequence, and the upper center ring 4 is positioned by the No. 1 quick clips 27 .

[0044] The fourth step is to hoist the impeller orientation assembly 12 onto the central shaft 8, and tighten the standard weld 41 on the impeller orientation assembly 12 so that the cone head at the top of the standard weld 41 and the conical positioning hole on the central shaft 8 are matched to position the impeller orientation assembly 12 in the circumferential direction; at this time, the second quick clamp 39 on the impeller orientation assembly 12 is in the open state, and the plate 1 38 on the blade reference side positioning assembly 32 and the plate 7 44 on the blade pressing assembly 33 form an angle of 5 degrees;

[0045] The fifth step is to sequentially load twelve blades 2 and position the bottom of the blade 2 through the notch on the center plate 1, so that the upper part of the blade 2 fits with the plate 1 38 on the blade reference side positioning group 32.

[0046] In the sixth step, the second quick clamp 39 on the impeller orientation assembly 12 is closed and enters the dead point, so that the plate 1 38 on the blade reference side positioning assembly 32 and the plate 7 44 on the blade clamping assembly 33 clamp the blade.

[0047] The seventh step is to install the upper cone disc 6 and the cone disc centering assembly 11. The outer ring of the cone disc centering assembly 11 cooperates with the inner ring of the upper cone disc 6 to center the upper cone disc.

[0048] The eighth step is to install the pressure plate 10, tighten the nut on the central shaft 8 to compress the pressure plate 10, so that the inner ring of the pressure plate 10 fits with the upper cone plate 6, and the upper cone plate 6 is axially fixed.

[0049] The ninth step is to manually spot weld the blade 2, the upper cone disk 6 and the center disk 1.

[0050] Step 10. After the manual spot welding is completed, loosen the nut on the central shaft 8 and take out the pressure plate; then lift out the central support ring 9; open the No. 2 quick clamp 39 on the impeller orientation group assembly 12, so that the plate seven 44 on the blade clamping group 33 is separated from the twelve blades 2; then loosen the standard part weld 41, rotate the impeller orientation group assembly 12, so that the plate seven 44 on the impeller orientation group assembly 12 is separated from the blade 2, and take out the impeller orientation group assembly 12; then open the four quick clamps on the central support ring 9 and take out the central support ring 9.

[0051] In the eleventh step, the workpiece is removed from the workpiece. The upper and lower halves of the workpiece are symmetrical. The spot welding of the lower half of the workpiece is completed in the same way as in the above steps.

[0052] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0053] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A method for using a carbon steel impeller assembly welding device, characterized in that: A carbon steel impeller assembly welding device comprises a main body positive assembly (7), a center shaft (8), a center support ring (9), a pressure plate (10), a cone plate centering assembly (11), an impeller orientation assembly positive assembly (12), a main body reverse assembly and an impeller orientation assembly reverse assembly (14); The main body (7) comprises a bottom plate (15), a tray (16), a support plate (17), a lower column (18) and a cushion block (19); The bottom plate (15) and the support plate (17) are connected via a plurality of lower columns (18) distributed in an array, a tray (16) is provided between the bottom plate (15) and the support plate (17), and a cushion block (19) is provided on the lower end surface of the support plate (17); The central shaft (8) comprises a central support (20), a positioning plate (21), a diamond pin (22), a screw rod (23), and a connecting shaft (24); The upper end of the central support (20) is provided with a positioning plate (21), a diamond pin (22) is arranged on the upper end surface of the positioning plate (21), and the upper end of the central support (20) is connected to the screw rod (23) via a connecting shaft (24); The central support ring (9) comprises a limit block (25), a base (26), a No. 1 quick clamp (27), a circular ring (28) and a lifting eye screw (29); The circular ring (28) is arranged in the middle of the base (26); the eye screw (29) penetrates the surface of the base (26) near the circular ring (28); at least four No. 1 quick clamps (27) are arranged in an array on the outside of the base (26); and each No. 1 quick clamp (27) is provided with a limit block (25); The cone disk centering assembly (11) comprises a shaft sleeve and a main body; The shaft sleeve passes through the through hole at the center of the main body, and the two are fixed by bolt connection; The impeller orientation assembly (12) comprises a blade reference side positioning assembly (32) and a blade pressing assembly (33) matched therewith; The impeller orientation assembly reverse installation (14) comprises a blade reference side positioning assembly reverse installation (45) and a blade pressing assembly reverse installation (46) matched therewith; The blade reference side positioning group (32) comprises an adjusting block (34), a fixing block (35), a shaft sleeve (36), a main body, a plate 1 (38), a No. 2 quick clamp (39), a guide pin (40) and a standard part weld (41); The shaft sleeve (36) is inserted into the hole of the main body, and a guide pin (40) and a standard part weld (41) are arranged on the outside of the shaft sleeve (36). The adjustment block (34) and the fixing block (35) are arranged on the surface of the main body outside the shaft sleeve (36), and the second quick clamp (39) is also arranged on the surface of the main body outside the shaft sleeve (36). A plurality of plates (38) are arranged, and the plates are arranged in an array on the outside of the main body. The blade pressing group (33) comprises a plate four (42), a plate five (43) and a plate seven (44); The base (26) is also provided with at least two symmetrically arranged arc-shaped holes; The diamond pin (22) corresponds to the positioning hole on the surface of the carbon steel impeller center disk (1) to be processed; The circular ring (28) is provided with a groove corresponding to the pin on the central shaft (8); The method for using the carbon steel impeller assembly welding device comprises the following steps: The first step is to manually place the center disk (1), use the center shaft (8) for centering, and use the diamond pin (22) to position the center disk (1) in the circumferential direction; the second step is to place the center support ring (9) in the center shaft (8), and use the groove on the circular ring (28) on the center support ring (9) to insert the pin on the center shaft (8) to position the center support ring (9) in the circumferential direction; the third step is to place the upper center ring (4) in the limit block (25) on the center support ring (9), and open the four No. 1 quick clamps (27) on the center support ring (9) in turn, and use the No. 1 quick clamps (27) to position the upper center ring (4); the fourth step is to hoist the impeller orientation assembly (12) onto the center shaft (8), and tighten it. The standard part weld (41) on the impeller orientation assembly (12) is welded so that the cone head at the top of the standard part weld (41) and the cone positioning hole on the center axis (8) cooperate to position the circumferential direction of the impeller orientation assembly (12). At this time, the second quick clamp (39) on the impeller orientation assembly (12) is in an open state, and the plate 1 (38) on the blade reference side positioning assembly (32) and the plate 7 (44) on the blade pressing assembly (33) form an angle of five degrees; the fifth step is to sequentially install twelve blades (2) and position the bottom of the blade (2) through the notch on the center disk (1), and the upper part of the blade (2) is fitted with the plate 1 (38) on the blade reference side positioning assembly (32); the sixth step is to install the impeller orientation assembly (1 2) The No. 2 quick clamp (39) above is closed and enters the dead point, so that the plate 1 (38) on the blade reference side positioning group (32) and the plate 7 (44) on the blade clamping group (33) clamp the blade; the seventh step, install the upper cone disk (6) and the cone disk centering assembly (11), and the outer ring of the cone disk centering assembly (11) cooperates with the inner ring of the upper cone disk (6) to fix the center of the upper cone disk; the eighth step, install the pressure plate (10), tighten the nut on the center shaft (8) to press the pressure plate (10), so that the inner ring of the pressure plate (10) fits with the upper cone disk (6), and the upper cone disk (6) is axially fixed; the ninth step, manually spot weld the blade (2) with the upper cone disk (6) and the center disk (1); the tenth step, after the manual spot welding is completed, loosen the center shaft ( 8), and the pressure plate is taken out; then the center support ring (9) is lifted out; the second quick clamp (39) on the impeller orientation assembly (12) is opened, so that the plate seven (44) on the blade clamping assembly (33) is separated from the twelve blades (2); then the standard welding (41) is loosened, and the impeller orientation assembly (12) is rotated, so that the plate seven (44) on the impeller orientation assembly (12) is separated from the blades (2), and the impeller orientation assembly (12) is taken out; then the four quick clamps on the center support ring (9) are opened, and the center support ring (9) is taken out; in the eleventh step, the workpiece is stripped and taken out. The upper and lower parts of the workpiece are symmetrical, and the spot welding of the lower part of the workpiece is completed in the same way as in the above steps.

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