CN115008111A

CN115008111A - Welding tool clamp for gas turbine blade assembly

Info

Publication number: CN115008111A
Application number: CN202210948291.1A
Authority: CN
Inventors: 赵秀
Original assignee: Jiangsu Amos Gas Turbine Co ltd
Current assignee: Jiangsu Amos Gas Turbine Co ltd
Priority date: 2022-08-09
Filing date: 2022-08-09
Publication date: 2022-09-06
Anticipated expiration: 2042-08-09
Also published as: CN115008111B

Abstract

The invention relates to the technical field of welding of gas turbine blades, in particular to a welding tool fixture for a gas turbine blade assembly. According to the welding tool clamp for the gas turbine blade assembly, after the hub is fixed, the plurality of blades are sequentially placed on the inserting seat in the abutting mechanism, and then the plurality of blades are abutted and fixed on the side wall of the hub through the cooperation of the abutting mechanism and the push-pull group, so that the welding processing efficiency of the gas turbine blade assembly is improved.

Description

Gas turbine blade subassembly welding frock clamp

Technical Field

The invention relates to the technical field of welding of gas turbine blades, in particular to a welding tool clamp for a gas turbine blade assembly.

Background

The gas turbine is an internal combustion type power machine which takes continuously flowing gas as a working medium to drive an impeller to rotate at a high speed and converts the energy of fuel into useful work, and is a rotary impeller type heat engine.

When the welding tool for outer rotor axial flow blade double-side welding with the publication number of CN104259722B is used for welding and fixing the blades, the blades need to be tightly fixed on the side wall of the rotating shaft one by one, and a plurality of blades cannot be simultaneously fixed on the side wall of the rotating shaft in a supporting manner, so that the welding efficiency of a blade group is reduced, and meanwhile, when the rotating shaft and the blade group after welding is completed are taken down, fixing structures for fixing the blades need to be opened one by one, and the problem that the processes for taking down the rotating shaft and the blade group are complex is caused.

Disclosure of Invention

In order to solve the problems, the invention adopts the following technical scheme that the welding tool fixture for the gas turbine blade assembly comprises a supporting table, wherein a mounting groove is formed in the supporting table, an inner side push rod, an outer side pull rod and a support rod are sequentially and slidably mounted on the side wall of the supporting table from top to bottom, the inner side push rod, the outer side pull rod and the support rod are uniformly distributed along the circumferential direction of the supporting table, the inner side push rod and the outer side pull rod are aligned one by one, the outer side pull rod and the support rod are arranged in a staggered mode, a pushing column is mounted at the bottom of one end, away from the supporting table, of the inner side push rod, a pushing block is mounted at the top of one end, away from the supporting table, of the outer side pull rod, a driving group for driving the outer side pull rod and the inner side push rod to move and a pushing and pulling group for driving the support rod to move are mounted in the mounting groove, and a pushing and pulling group for supporting the blade is mounted on the support rod.

The abutting mechanism comprises an F-shaped frame connected with the top of one end of the supporting rod far away from the supporting platform, inserting seats are respectively arranged at two horizontal ends of the F-shaped frame through ear plates, the two inserting seats are arranged in a mirror-image staggered manner, the two inserting seats are of n-shaped structures, the top of one end of the support rod, which is far away from the support table, is rotatably connected with a rotating rod, the upper end of the rotating rod penetrates through the two lug plates above the rotating rod and is provided with a limit cap, and the dwang rotates with the otic placode to be connected, the both ends of dwang all are connected with the clamp plate through screw-thread fit's mode, the screw thread opposite direction at dwang both ends, insert the horizontal section of seat and keep away from one side of a supporting bench and set up the lapse groove that link up from top to bottom, sliding connection extrusion head in the lapse groove, extrusion head is connected with corresponding clamp plate, the terminal surface that the clamp plate was kept away from to extrusion head is close to a supporting bench is the inclined plane, install after the bottom of dwang runs through the bracing piece and drive it and carry out pivoted drive group.

Preferably, the drive group runs through fixed connection's behind the mounting groove screw rod including inboard push rod and outside pull rod, be connected with driven helical gear through screw-thread fit's mode on the screw rod, it is connected with the support to rotate on the driven helical gear, the lateral wall fixed connection of support and mounting groove, the bottom fixed mounting of mounting groove has the motor, install the axis of rotation on the output shaft of motor, the top and the mounting groove of axis of rotation rotate to be connected, the lateral wall of axis of rotation is from last to installing one number main skewed tooth ring and No. two main skewed tooth rings in proper order down, No. one main skewed tooth ring meshes the transmission with the driven helical gear on the inboard push rod, No. two main skewed tooth rings mesh the transmission with the driven helical gear on the outside pull rod.

Preferably, the push-pull group comprises a driving rod hinged to the bottom of the supporting rod after the supporting rod penetrates through the mounting groove, two sliding grooves which are symmetrically arranged are formed in the mounting groove, a rotating sleeve is connected between the two sliding grooves in a sliding mode and is sleeved on a push disc on the rotating shaft, and the lower end of the driving rod is hinged to the push disc.

Preferably, drive the group including connecting at a supporting bench lateral wall and along the connecting rod that its circumference was evenly arranged, the connecting rod is located the below between two adjacent bracing pieces, the tensioning shifting chute has been seted up to the bottom of connecting rod, has the slider through pulling spring mounting in the tensioning shifting chute, rotates on the slider to be connected with the tensioning axle, the lower pot head of dwang is equipped with anti-skidding cover, a plurality of tensioning axles pass through drive belt transmission with a plurality of anti-skidding covers and are connected.

Preferably, two vertical sections of inserting the seat are all seted up crowded push grooves in opposite directions, push away the inslot and have the location push pedal through the crowded spring of pushing away who is the matrix and arranges.

Preferably, one end of the positioning push plate, which is far away from the supporting table, is an inclined plane, and the inclined planes of the two positioning push plates on the same inserting seat are arranged in a splayed shape.

Preferably, the bottom of the supporting table is rotatably connected to the base, and poke rods uniformly distributed along the circumferential direction of the side wall of the supporting table are arranged at positions, close to the bottom, of the side wall of the supporting table.

The invention has the beneficial effects that: 1. the invention designs a welding tool fixture for a gas turbine blade assembly, after a hub is fixed, a plurality of blades are sequentially placed on an inserting seat in a propping mechanism, and then the plurality of blades are propped and fixed on the side wall of the hub through the matching of the propping mechanism and a push-pull group, so that the welding processing efficiency of the gas turbine blade assembly is improved.

2. According to the invention, the blades are positioned in the middle of the horizontal section of the inserting seat under the pushing action of the positioning push plates on the two sides, so that the blades are prevented from inclining to cause inaccurate blade fixing positions.

3. The push-pull group drives the supporting rod to move towards the supporting table until the blade is tightly abutted against the hub, no part is blocked at the tightly abutted part of the blade and the hub so as to be convenient for welding the blade and the hub, and meanwhile, one end of the blade, far away from the hub, is also supported, so that the phenomenon that the welding position of the blade is inaccurate due to the fact that the blade and the hub shake in the welding process is avoided.

Drawings

The invention is further illustrated with reference to the following figures and examples.

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is an enlarged view of fig. 1 a of the present invention.

Fig. 3 is a partial perspective view of the present invention.

Fig. 4 is an enlarged view of the invention at B of fig. 3.

FIG. 5 is a schematic view of the hub and blade configuration of the present invention.

FIG. 6 is a front sectional view of the inserting seat, the extruding-pushing groove, the positioning pushing plate and the extruding-pushing spring of the present invention.

FIG. 7 is a side sectional view of the socket, the pushing groove and the pushing head of the present invention.

Figure 8 is a top view of a positioning push plate of the present invention.

FIG. 9 is a front cross-sectional view of the support base, drive assembly and push-pull assembly of the present invention.

In the figure: 1. a support table; 2. mounting grooves; 10. an inner push rod; 11. an outer tie rod; 12. a support bar; 13. a pushing column; 14. a support block; 3. a drive group; 30. a screw; 31. a driven helical gear; 32. a support; 33. a motor; 34. a rotating shaft; 35. a first main bevel gear ring; 36. a second main bevel gear ring; 4. a push-pull group; 40. driving the rod; 41. sliding and pushing the groove; 42. pushing the disc; 5. a propping and fixing mechanism; 50. an F-shaped frame; 51. inserting a seat; 510. extruding and pushing the groove; 511. positioning a push plate; 512. pushing the spring; 52. rotating the rod; 53. a limiting cap; 54. pressing a plate; 55. a pushing groove; 56. extruding the pushing head; 57. a driving set; 570. a connecting rod; 571. tensioning the moving slot; 572. pulling the spring; 573. tensioning the shaft; 574. a transmission belt; 575. an anti-slip sleeve; 15. a base; 16. a poke rod; 101. a hub; 102. a blade.

Detailed Description

The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.

Referring to fig. 1, 3, 5 and 9, a welding tooling fixture for a gas turbine blade assembly includes a support table 1, supporting bench 1 is last to have seted up mounting groove 2, the lateral wall from the top down slidable mounting in proper order of supporting bench 1 has inboard push rod 10, outside pull rod 11 and bracing piece 12, inboard push rod 10, outside pull rod 11 all evenly arranges along supporting bench 1 circumference with bracing piece 12, inboard push rod 10 aligns with outside pull rod 11 one by one, outside pull rod 11 is crisscross with bracing piece 12 and arranges, inboard push rod 10 is kept away from the one end bottom of supporting bench 1 and is installed and support and push away post 13, outside pull rod 11 is kept away from the one end top of supporting bench 1 and is installed and support solid piece 14, install the push-and-pull group 4 that drives outside pull rod 11 and inboard push rod 10 removal 3 and drive bracing piece 12 removal in the mounting groove 2, install the solid mechanism 5 that supports to blade 102 on the bracing piece 12.

Referring to fig. 1, the bottom of the supporting table 1 is rotatably connected to the base 15, the side wall of the supporting table 1 near the bottom is provided with poke rods 16 uniformly arranged along the circumferential direction of the supporting table, and the poke rods 16 are used for driving the supporting table 1 to rotate, so that an operator can sequentially insert the blades 102 into the corresponding inserting seats 51 in the abutting mechanism 5.

Referring to fig. 9, the driving unit 3 includes a screw 30 fixedly connected to the inner side push rod 10 and the outer side pull rod 11 after penetrating through the mounting groove 2, a driven helical gear 31 is connected to the screw 30 in a thread fit manner, a support 32 is rotatably connected to the driven helical gear 31, the support 32 is fixedly connected to the side wall of the mounting groove 2, a motor 33 is fixedly mounted at the bottom of the mounting groove 2, a rotating shaft 34 is mounted on an output shaft of the motor 33, the top of the rotating shaft 34 is rotatably connected to the mounting groove 2, a first main helical gear ring 35 and a second main helical gear ring 36 are sequentially mounted on the side wall of the rotating shaft 34 from top to bottom, the first main helical gear ring 35 is in meshing transmission with the driven helical gear 31 on the inner side push rod 10, and the second main helical gear ring 36 is in meshing transmission with the driven helical gear 31 on the outer side pull rod 11.

After the wheel hub 101 is placed on the outer side pull rod 11, the motor 33 (forward and reverse rotation motor) is started, the motor 33 drives the rotating shaft 34 to rotate, the rotating shaft 34 drives the first main helical gear 35 and the second main helical gear 36 to rotate in the rotating process, the first main helical gear 35 drives the inner side push rod 10 and the abutting column 13 to move in the direction away from the supporting table 1 by being meshed with the driven helical gear 31 on the inner side push rod 10 in the rotating process, the second main helical gear 36 drives the outer side pull rod 11 and the abutting block 14 to move in the direction close to the supporting table 1 by being meshed with the driven helical gear 31 on the outer side pull rod 11 in the rotating process until the abutting column 13 abuts against the inner ring surface of the wheel hub 101, the abutting block 14 abuts against the outer ring surface of the wheel hub 101, at this time, the wheel hub 101 is not only fixed, but also the position of the wheel hub 101 is adjusted, so as to ensure that the center of the wheel hub 101 coincides with the center of the supporting table 1, so as to facilitate the precise welding of the blades 102 to the side walls of the hub 101.

Referring to fig. 2, the abutting mechanism 5 includes an F-shaped frame 50 connected to the top of one end of the support rod 12 far away from the support table 1, two horizontal ends of the F-shaped frame 50 are both provided with insertion seats 51 through ear plates, the two insertion seats 51 are arranged in a mirror-image staggered manner, and both the two insertion seats 51 are n-shaped structures, the top of one end of the support rod 12 far away from the support table 1 is rotatably connected with a rotating rod 52, the upper end of the rotating rod 52 penetrates through the two ear plates above the rotating rod 52 and is provided with a limit cap 53, the rotating rod 52 is rotatably connected with the ear plates, both ends of the rotating rod 52 are connected with press plates 54 through a thread fit manner, the thread directions of both ends of the rotating rod 52 are opposite, one side of the horizontal section of the insertion seat 51 far away from the support table 1 is provided with an up-down through pushing groove 55, the pushing head 56 is slidably connected with the corresponding press plate 54, the end face of the pushing head 56 far away from the press plate 54 is an inclined plane, the bottom of the rotating rod 52 penetrates through the supporting rod 12 and is provided with a driving set 57 for driving the supporting rod to rotate.

When the blade 102 is not placed in the inserting seat 51, the pushing and pulling set 4 drives the abutting mechanism 5 to move a distance to the supporting table 1, so that the inserting seat 51 is close to the supporting table 1, the blade 102 is prevented from falling from between the inserting seat 51 and the supporting table 1 due to a long distance between the inserting seat 51 and the supporting table 1, then the plurality of blades 102 are sequentially placed in the inserting seat 51, two inserting seats 51 on each supporting rod 12 support and limit the blade 102 therebetween, then the driving set 57 is started, the driving set 57 drives the rotating rod 52 to rotate, the rotating rod 52 drives the pressing plates 54 to move in a threaded fit manner in the rotating process, the upper and lower pressing plates 54 both drive the pushing heads 56 connected with the upper and lower pressing plates to move towards the blade 102, so that the inserted blade 102 is limited in multiple directions, meanwhile, the blade 102 is conveniently abutted against the hub 101, and after the pushing heads 56 limit the blade 102, the supporting rod 12 is driven by the push-pull group 4 to move towards the supporting table 1 until the blade 102 is tightly abutted to the hub 101, at the moment, no part is arranged at the tightly abutted position of the blade 102 and the hub 101 to facilitate welding of the blade 102 and the hub 101, and meanwhile, one end, far away from the hub 101, of the blade 102 is also supported, so that the blade 102 and the hub 101 are prevented from shaking to cause inaccuracy of the welding position of the blade 102 when the blade 102 is welded to the hub 101.

Referring to fig. 6 and 7, two opposite vertical sections of the inserting seat 51 are provided with pushing grooves 510, and positioning pushing plates 511 are installed in the pushing grooves 510 through pushing springs 512 arranged in a matrix.

Referring to fig. 8, one end of the positioning push plate 511 away from the supporting platform 1 is an inclined plane, and the inclined planes of the two positioning push plates 511 on the same inserting seat 51 are arranged in a splayed shape.

When the blade 102 is placed in the inserting seat 51, the positioning push plates 511 at two sides of the blade are pressed to move into the pushing groove 510, so that the pushing spring 512 is contracted, and meanwhile, the blade 102 is positioned in the middle of the horizontal section of the inserting seat 51 under the pushing action of the positioning push plates 511 at two sides, so that the placed blade 102 is prevented from being inclined, and the fixed position of the blade 102 is not accurate.

Referring to fig. 9, the push-pull set 4 includes a driving rod 40 hinged to the bottom of the supporting rod 12 after penetrating through the mounting groove 2, two sliding grooves 41 symmetrically arranged are formed in the mounting groove 2, a push plate 42 rotatably sleeved on the rotating shaft 34 is slidably connected between the two sliding grooves 41, and the lower end of the driving rod 40 is hinged to the push plate 42.

The push disc 42 is connected with the sliding groove through an external electric slider, when the support rod 12 needs to move, the push disc 42 is driven to move downwards through the external electric slider, the push disc 42 drives the support rod 12 to move towards the mounting groove 2 through the driving rod 40 in the moving process, and therefore the support rod 12 drives the blades 102 to abut against the hub 101.

Referring to fig. 4, the driving set 57 includes a connecting rod 570 connected to the side wall of the supporting table 1 and uniformly arranged along the circumferential direction thereof, the connecting rod 570 is located below the two adjacent supporting rods 12, a tensioning moving groove 571 is formed in the bottom of the connecting rod 570, a sliding block is installed in the tensioning moving groove 571 by pulling a spring 572, a tensioning shaft 573 is rotatably connected to the sliding block, an anti-slip sleeve 575 is sleeved at the lower end of the rotating rod 52, the tensioning shafts 573 are in transmission connection with the anti-slip sleeves 575 through a transmission belt 574, the anti-slip sleeves 575 increase the friction force between the rotating rod 52 and the transmission belt 574, tooth grooves (not shown in the figure) are uniformly formed in the inner wall of the transmission belt 574, and convex teeth (not shown in the figure) meshed with the tooth grooves are uniformly formed on the outer walls of the anti-slip sleeves 575 and the tensioning shaft 573 to improve the transmission stability.

The bottom of one of the rotating rods 52 is connected with an external driving motor to drive the rotating rods 52 to rotate, the rotating rod 52 connected with the external driving motor 33 drives the other rotating rods 52 to rotate synchronously through the transmission belt 574 during the rotation process, the rotating rod 52 rotates to drive the pressing plate 54 to move with the pushing head 56, and when the supporting rod 12 moves, the transmission belt 574 between two adjacent rotating rods 52 pulls the tensioning shaft 573 to move with the sliding block, so as to achieve the effect of supplementing the distance of the transmission belt 574 between two adjacent rotating rods 52.

The working principle is as follows: before use, the driving set 3 drives the inner push rod 10 and the abutting post 13 to move towards the supporting table 1, the outer pull rod 11 drives the abutting block 14 to move towards the direction far away from the supporting table 1, then the hub 101 is placed on the outer pull rod 11, the outer pull rod 11 supports the hub 101, then the driving set 3 is started, the driving set 3 drives the inner push rod 10 and the abutting post 13 to move towards the direction far away from the supporting table 1, the outer pull rod 11 drives the abutting block 14 to move towards the direction close to the supporting table 1 until the abutting post 13 and the abutting block 14 abut against the side wall of the hub 101, so that the hub 101 is fixed, then the pushing and pulling set 4 is started to drive the supporting rod 12 to move, so that the abutting mechanism 5 is close to the hub 101, the blade 102 is inserted on the abutting mechanism 5, the blade 102 is abutted and fixed with the hub 101, and finally the blade 102 is welded and fixed with the hub 101, after the welding is finished, the pushing and pulling group 4 pushes the abutting mechanism 5 on the supporting rod 12 to move in the direction away from the supporting table 1 until the inserting seat 51 is separated from the blade 102.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a gas turbine blade subassembly welding frock clamp which characterized in that: comprises a supporting table (1), a mounting groove (2) is formed in the supporting table (1), the side wall of the supporting table (1) is sequentially provided with an inner push rod (10), an outer pull rod (11) and a supporting rod (12) in a sliding manner from top to bottom, the inner push rod (10), the outer pull rod (11) and the supporting rod (12) are uniformly arranged along the circumferential direction of the supporting table (1), the inner push rod (10) is aligned with the outer pull rod (11) one by one, the outer pull rod (11) and the supporting rod (12) are arranged in a staggered manner, a pushing column (13) is arranged at the bottom of one end of the inner push rod (10) far away from the supporting table (1), a pushing block (14) is arranged at the top of one end of the outer pull rod (11) far away from the supporting table (1), a driving group (3) for driving the outer pull rod (11) and the inner push rod (10) to move and a pushing and pulling group (4) for driving the supporting rod (12) to move are arranged in the mounting groove (2), the supporting rod (12) is provided with a propping and fixing mechanism (5) for supporting the blade (102);

the abutting mechanism (5) comprises an F-shaped frame (50) connected with the top of one end, far away from the supporting table (1), of a supporting rod (12), two horizontal ends of the F-shaped frame (50) are provided with inserting seats (51) through lug plates, the two inserting seats (51) are arranged in a mirror-image staggered mode, the two inserting seats (51) are of n-shaped structures, the top of one end, far away from the supporting table (1), of the supporting rod (12) is rotatably connected with a rotating rod (52), a limiting cap (53) is arranged at the upper end of the rotating rod (52) after penetrating through the two lug plates above the rotating rod, the rotating rod (52) is rotatably connected with the lug plates, two ends of the rotating rod (52) are respectively connected with a pressing plate (54) in a threaded fit mode, the directions of threads at two ends of the rotating rod (52) are opposite, one side, far away from the supporting table (1), of the horizontal section of the inserting seat (51) is provided with a pushing groove (55) which is vertically communicated, and an extruding head (56) is connected in the pushing groove (55) in a sliding connection mode, the pushing heads (56) are connected with the corresponding pressing plates (54), the end faces, close to the supporting platform (1), of the ends, far away from the pressing plates (54), of the pushing heads (56) are inclined planes, and a driving group (57) for driving the rotating rods (52) to rotate is installed behind the supporting rods (12) which are penetrated through the bottom of the rotating rods.

2. The gas turbine blade assembly welding tooling fixture of claim 1, characterized in that: drive group (3) run through mounting groove (2) back fixed connection's screw rod (30) including inboard push rod (10) and outside pull rod (11), be connected with driven helical gear (31) through screw-thread fit's mode on screw rod (30), it is connected with support (32) to rotate on driven helical gear (31), the lateral wall fixed connection of support (32) and mounting groove (2), the bottom fixed mounting of mounting groove (2) has motor (33), install axis of rotation (34) on the output shaft of motor (33), the top and mounting groove (2) of axis of rotation (34) rotate and are connected, the lateral wall of axis of rotation (34) is from last to installing one number main helical gear (35) and No. two main helical gear (36) in proper order, one main helical gear (35) and driven helical gear (31) meshing transmission on inboard push rod (10), No. two main helical gear (36) and driven helical gear (31) meshing transmission on outside pull rod (11).

3. The gas turbine blade assembly welding tooling fixture of claim 2, characterized in that: the push-pull group (4) comprises a driving rod (40) which is hinged to the bottom of the supporting rod (12) after penetrating through the mounting groove (2), two sliding grooves (41) which are symmetrically arranged are formed in the mounting groove (2), a push disc (42) which is rotatably sleeved on the rotating shaft (34) is connected between the two sliding grooves (41) in a sliding mode, and the lower end of the driving rod (40) is hinged to the push disc (42).

4. The gas turbine blade assembly welding tooling fixture of claim 1, characterized in that: drive group (57) including connecting rod (570) that evenly arranges along its circumference at a supporting bench (1) lateral wall, connecting rod (570) are located the below between two adjacent bracing pieces (12), tensioning shifting chute (571) have been seted up to the bottom of connecting rod (570), install the slider through pulling spring (572) in tensioning shifting chute (571), it is connected with tensioning axle (573) to rotate on the slider, the lower pot head of dwang (52) is equipped with antiskid cover (575), a plurality of tensioning axles (573) are connected through drive belt (574) transmission with a plurality of antiskid cover (575).

5. The gas turbine blade assembly welding tooling fixture of claim 1, characterized in that: two vertical sections of the inserting seat (51) are oppositely provided with extruding and pushing grooves (510), and positioning push plates (511) are arranged in the extruding and pushing grooves (510) through extruding and pushing springs (512) which are arranged in a matrix.

6. The gas turbine blade assembly welding tooling fixture of claim 5, characterized in that: one end of the positioning push plate (511), which is far away from the supporting table (1), is an inclined plane, and the inclined planes of the two positioning push plates (511) on the same inserting seat (51) are arranged in a splayed shape.

7. The gas turbine blade assembly welding tooling fixture of claim 1, characterized in that: the bottom of the supporting table (1) is rotatably connected to the base (15), and poke rods (16) which are evenly distributed along the circumferential direction of the supporting table (1) are arranged on the side wall of the supporting table close to the bottom.