CN218426388U

CN218426388U - Processing spot welding device of steam turbine stationary blade

Info

Publication number: CN218426388U
Application number: CN202222041325.7U
Authority: CN
Inventors: 高忠; 黄一江
Original assignee: Changzhou 3d Technology Complete Set Equipment Co ltd
Current assignee: Changzhou 3d Technology Complete Set Equipment Co ltd
Priority date: 2022-08-04
Filing date: 2022-08-04
Publication date: 2023-02-03
Anticipated expiration: 2032-08-04

Abstract

The utility model relates to a processing spot welding device of steam turbine stator blade, comprises a workbench, the last fixed surface of workstation has the welding case, the roof of welding incasement chamber is fixed with the cylinder, the outside of cylinder output shaft is fixed with the installation base that is being linear motion from top to bottom by its drive, the upper surface of welding case is equipped with purification mechanism, the upper surface of workstation is equipped with positioning mechanism. This device is welded to processing point of steam turbine stator blade, set up purification mechanism in this device is welded to processing point, through the mutually supporting between each structure in the purification mechanism, in the course of working to steam turbine stator blade, can effectively purify the welding cigarette that produces when welding, reduce the influence of welding cigarette to the air, ensure that the staff can not excessively inhale the welding cigarette at the in-process of processing spot welding, guarantee for staff's healthy provision, the positioning mechanism that deuterogamies, fixed action has been played steam turbine stator blade, the welding effect of spot welding device has been improved.

Description

Processing spot welding device of turbine stator blade

Technical Field

The utility model relates to a steam turbine stator blade processing technology field specifically is a processing spot welding device of steam turbine stator blade.

Background

A static blade fixed on a clapboard or a guide blade holding ring is a static blade, the static blade not only guides the steam flow in a steam turbine but also accelerates the steam, the static blade in the steam chamber is called a nozzle, the static blade is taken as a guide blade at a speed stage, the steam flow changes the direction to enter a next row of movable blades, in a reaction steam turbine, the static blade plays a role of the nozzle, spot welding, which is a welding method that a columnar electrode is utilized to form a welding spot between two overlapped workpiece contact surfaces during welding, when in spot welding, workpieces are pressed to be tightly contacted firstly, then current is switched on, the contact part of the workpieces is melted under the action of resistance heat, the welding spot is formed after cooling, the spot welding is mainly used for welding thin plate component stamping parts with the thickness of less than four millimeters, and in the processing process of the static blade of the steam turbine, the spot welding technology is often used for processing the static blade of the steam turbine.

In the course of working at the stationary blade of steam turbine, need use spot welding technique to carry out the processing welding to the stationary blade of steam turbine, but in the use of processing spot welding device, because processing spot welding device only possesses the welding function to the stationary blade of steam turbine, at the in-process of spot welding, can produce certain welding smoke, these welding smoke can be discharged directly in the air, not only can pollute the air, and after the staff inhales, also can cause certain influence to its health, the practicality of this processing spot welding device has been reduced.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a device is welded to processing point of steam turbine stator blade possesses the advantage that the cigarette was welded in the purification, has solved and has welded the problem that the cigarette influences environment and staff are healthy.

In order to achieve the above object, the utility model provides a following technical scheme: a spot welding device for machining a stationary blade of a steam turbine comprises a workbench, wherein a welding box is fixed on the upper surface of the workbench, a cylinder is fixed on the top wall of an inner cavity of the welding box, a mounting base driven by an output shaft of the cylinder to do vertical linear motion is fixed on the outer side of the output shaft of the cylinder, a purification mechanism is arranged on the upper surface of the welding box, and a positioning mechanism is arranged on the upper surface of the workbench;

purification mechanism includes the smoke abatement subassembly and opens and shuts the subassembly, the smoke abatement subassembly is including fixing the fan at the welding box upper surface, the air inlet end intercommunication of fan has the other end to run through and extend to the hose of welding incasement portion, the outside of installation base is fixed with the smoking cover, the last fixed surface of welding box has the purifying box, the inside of purifying box is fixed with three active carbon filter screen.

Further, the one end that the fan was kept away from to the hose communicates with the upper surface of cigarette cover, the lower surface intercommunication of cigarette cover has the cigarette end of advancing that quantity is no less than two.

Further, the air outlet end of the fan is communicated with a guide pipe, and one end, far away from the fan, of the guide pipe is communicated with the left side face of the purification box.

Furthermore, the opening and closing assembly comprises a supporting plate fixed on the right side of the welding box, an electric push rod is fixed on the upper surface of the supporting plate, and a baffle driven by the electric push rod to do vertical linear motion is fixed on the outer side of an output shaft of the electric push rod.

Further, the movable opening has been seted up on the right side of welding case, the left side of baffle and the right side laminating of welding case.

Further, positioning mechanism is including seting up the spout at the workstation upper surface, the inside sliding connection of spout has the slider, the last fixed surface of slider has the rack, the roof of rack inner chamber is fixed with the control box, the back of the body wall of control box inner chamber is fixed with the motor, the outside of motor output shaft is fixed with the gear, the outside meshing of gear has two racks.

Furthermore, the upside the left side of rack and the right side of downside rack all are fixed with L shape pole, two the one end that L shape pole carried on the back mutually all is fixed with the movable rod.

Compared with the prior art, the technical scheme of the application has the following beneficial effects:

1. this device is welded to processing point of steam turbine stationary blade has set up purification mechanism in this device is welded to processing point, through the mutually supporting between each structure in the purification mechanism, in the course of working to steam turbine stationary blade, can effectively purify the welding cigarette that produces when welding, reduces the influence of welding the cigarette to the air, ensures that the staff can not excessively inhale the welding cigarette at the in-process of processing spot welding, provides the guarantee for staff's healthy.

2. This processing spot welding device of steam turbine stator blade has set up positioning mechanism in this processing spot welding device, through the mutual cooperation between each structure in the positioning mechanism, has played good fixed action to the steam turbine stator blade that needs the welding, prevents that the steam turbine stator blade from taking place the condition of offset in welding process, has improved this spot welding device's welding effect.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the purifying mechanism of the present invention;

FIG. 3 is a schematic view of the positioning mechanism of the present invention;

fig. 4 is an enlarged schematic view of a structure in fig. 3 according to the present invention.

In the figure: 1 workbench, 2 welding box, 3 cylinder, 4 mounting base, 5 purifying mechanism, 501 fan, 502 hose, 503 smoke absorbing sleeve, 504 purifying box, 505 active carbon filter screen, 506 supporting plate, 507 electric push rod, 508 baffle, 6 positioning mechanism, 601 sliding groove, 602 sliding block, 603 placing rack, 604 control box, 605 motor, 606 gear and 607 rack.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, the spot welding device for processing a stationary blade of a steam turbine in this embodiment includes a workbench 1, a welding box 2 is fixed on an upper surface of the workbench 1, a cylinder 3 is fixed on a top wall of an inner cavity of the welding box 2, the cylinder 3 is a common article in the market, and will not be described in detail herein, an installation base 4 driven by an output shaft of the cylinder 3 to move up and down linearly is fixed on an outer side of the output shaft, a purification mechanism 5 is disposed on an upper surface of the welding box 2, and a positioning mechanism 6 is disposed on an upper surface of the workbench 1.

It should be noted that a spot welding machine is fixed on the lower surface of the mounting base 4, four supporting legs are welded on the lower surface of the workbench 1, and the supporting legs support the spot welding machine.

Please refer to fig. 2, in order to purify the welding fume generated during spot welding and reduce the influence caused by the welding fume, the purifying mechanism 5 in this embodiment includes a fume removing component and an opening and closing component, the fume removing component includes a fan 501 fixed on the upper surface of the welding box 2, an air inlet end of the fan 501 is communicated with a hose 502 having the other end penetrating and extending to the inside of the welding box 2, a fume sucking sleeve 503 is fixed on the outer side of the mounting base 4, a purifying box 504 is fixed on the upper surface of the welding box 2, three activated carbon filter screens 505 are fixed inside the purifying box 504, the activated carbon filter screens 505 are common articles in the prior art, and have a purifying effect on the welding fume generated during spot welding.

Wherein, the one end that the hose 502 is kept away from fan 501 communicates with the upper surface of smoking cover 503, and the lower surface intercommunication of smoking cover 503 has the cigarette end of advancing that quantity is no less than two, advances the cigarette end and gets into the passageway of smoking cover 503 for welding the cigarette, and the air-out end intercommunication of fan 501 has the pipe, and the one end that the fan 501 was kept away from to the pipe communicates with the left surface of purifying box 504.

The opening and closing assembly comprises a supporting plate 506 fixed on the right side of the welding box 2, an electric push rod 507 is fixed on the upper surface of the supporting plate 506, and a baffle 508 driven by the electric push rod 507 to do vertical linear motion is fixed on the outer side of an output shaft of the electric push rod 507.

The movable opening is opened on the right side of welding box 2, and the left side of baffle 508 is laminated with the right side of welding box 2.

When the lower surface of the shutter 508 contacts the upper surface of the table 1, the shutter 508 blocks the movable opening.

It can be understood that, when the fan 501 is started, and under the action of the fan 501, welding fume generated during spot welding is sucked by the fume inlet head on the lower surface of the smoking sleeve 503, then reaches the fan 501 from the hose 502, and then reaches the purification box 504 through the conduit, and the welding fume is purified by the three activated carbon filter screens 505 in the purification box 504 and then is discharged out of the purification box 504.

Referring to fig. 3-4, in order to fix the turbine stationary blade to be welded, the positioning mechanism 6 in this embodiment includes a sliding groove 601 formed on the upper surface of the workbench 1, a sliding block 602 is slidably connected inside the sliding groove 601, a placing rack 603 is fixed on the upper surface of the sliding block 602, a handle is fixed on the right side of the placing rack 603, the handle is a common article on the market and is not described in detail herein, a control box 604 is fixed on the top wall of an inner cavity of the placing rack 603, a motor 605 is fixed on the back wall of the inner cavity of the control box 604, a gear 606 is fixed on the outer side of an output shaft of the motor 605, and two racks 607 are engaged on the outer side of the gear 606.

Wherein, the left side of upside rack 607 and the right side of downside rack 607 all are fixed with L shape pole, and the one end that two L shape poles are carried on the back mutually all is fixed with the movable rod.

It should be noted that the positioning plates are fixed to the two opposite short movable rods, and when the positioning plates fix the turbine stationary blades on the placing frame 603, the turbine stationary blades are fixed at this time, so that the spot welding effect of the processing spot welding device is improved.

The working principle of the above embodiment is as follows:

(1) When the turbine stator blade needs to be subjected to spot welding, the turbine stator blade needing spot welding is placed on the placing frame 603, then the motor 605 is driven, an output shaft of the motor 605 rotates clockwise, the gear 606 rotates clockwise to drive the upper rack 607 to move rightwards, the lower rack 607 is driven to move leftwards, the L-shaped rod on the left side of the upper rack 607 moves rightwards, the L-shaped rod on the right side of the lower rack 607 moves leftwards, the two L-shaped rods move to drive the two movable rods to move towards the direction close to the central axis of the placing frame 603, the two positioning plates are driven to move towards the direction close to the central axis of the placing frame 603, and after the turbine stator blade on the placing frame 603 is fixed by the two positioning plates, the motor 605 is closed.

(2) Then push the handle on the right side of the placing rack 603, push the placing rack 603 to the left, at this time, the sliding block 602 slides in the chute 601, after the placing rack 603 moves to a specified position, then start the electric push rod 507, extend the output shaft of the electric push rod 507, drive the baffle 508 to move downwards, when the baffle 508 seals the movable opening, at this time, start to spot-weld the turbine stator blade, start the cylinder 3, the cylinder 3 drives the mounting base 4 and the spot welder to move downwards, at this time, start the fan 501, receive the effect of the fan 501, the welding fume generated during spot welding is sucked by the fume inlet head on the lower surface of the fume suction sleeve 503, then reach the fan 501 from the hose 502, and then reach the purifying box 504 through the conduit, the welding fume is purified by the three activated carbon filter screens 505 in the purifying box 504, and then is discharged to the outside of the purifying box 504.

It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a processing spot welding device of steam turbine stationary blade, includes workstation (1), its characterized in that: a welding box (2) is fixed on the upper surface of the workbench (1), a cylinder (3) is fixed on the top wall of an inner cavity of the welding box (2), an installation base (4) which is driven by an output shaft of the cylinder (3) to do vertical linear motion is fixed on the outer side of the output shaft of the cylinder (3), a purification mechanism (5) is arranged on the upper surface of the welding box (2), and a positioning mechanism (6) is arranged on the upper surface of the workbench (1);

purification mechanism (5) are including removing the cigarette subassembly and the subassembly that opens and shuts, remove the cigarette subassembly including fixing fan (501) at welding case (2) upper surface, the air inlet end intercommunication of fan (501) has the other end to run through and extend to hose (502) of welding case (2) inside, the outside of installation base (4) is fixed with smoking cover (503), the last fixed surface of welding case (2) has purifying box (504), the inside of purifying box (504) is fixed with three active carbon filter screen (505).

2. The spot welding apparatus for machining a turbine stationary blade according to claim 1, wherein: one end, far away from the fan (501), of the hose (502) is communicated with the upper surface of the smoking sleeve (503), and the lower surface of the smoking sleeve (503) is communicated with at least two smoke inlet heads.

3. The apparatus for spot-welding a stationary blade for a steam turbine according to claim 1, wherein: the air outlet end of the fan (501) is communicated with a guide pipe, and one end of the guide pipe, which is far away from the fan (501), is communicated with the left side face of the purification box (504).

4. The apparatus for spot-welding a stationary blade for a steam turbine according to claim 1, wherein: the opening and closing assembly comprises a supporting plate (506) fixed to the right side of the welding box (2), an electric push rod (507) is fixed to the upper surface of the supporting plate (506), and a baffle (508) driven by the electric push rod (507) to move up and down linearly is fixed to the outer side of an output shaft of the electric push rod (507).

5. The apparatus for spot-welding a stationary blade for a steam turbine according to claim 4, wherein: the right side of welding case (2) has seted up the expansion joint, the left side of baffle (508) and the right side laminating of welding case (2).

6. The spot welding apparatus for machining a turbine stationary blade according to claim 1, wherein: positioning mechanism (6) are including seting up spout (601) at workstation (1) upper surface, the inside sliding connection of spout (601) has slider (602), the last fixed surface of slider (602) has rack (603), the roof of rack (603) inner chamber is fixed with control box (604), the back wall of control box (604) inner chamber is fixed with motor (605), the outside of motor (605) output shaft is fixed with gear (606), the outside meshing of gear (606) has two racks (607).

7. The apparatus for spot-welding a stationary blade for a steam turbine according to claim 6, wherein: the upside the left side of rack (607) and the right side of downside rack (607) all are fixed with L shape pole, two the one end that the L shape pole carried on the back mutually all is fixed with the movable rod.