CN220050566U - Annular welding structure for stator core - Google Patents

Abstract

The utility model relates to an annular welding structure for a stator core, which comprises an annular ground rail, a guide upright post, a welding robot, a welding power supply and a welding controller, wherein the lower end of the guide upright post is movably connected with the rail surface of the annular ground rail, the guide upright post performs circular motion along the annular ground rail, the welding robot is arranged at the upper end of the guide upright post and performs reciprocating lifting motion along the guide upright post, and the welding power supply and the welding controller are arranged at the side part of the guide upright post and are used for being electrically connected with the welding robot and providing power supply and control for the welding power supply and the welding controller. The welding robot, the welding power supply and the welding controller are integrated on the guide post which can move along the circular ground rail, automatic welding operation is carried out around the stator core in the vertical direction, the welding speed is high, the welding quality is good, splashing is avoided almost, the polishing labor cost after welding forming is reduced, the labor intensity is reduced, and the economic benefit is good.

Description

Annular welding structure for stator core

Technical Field

The utility model relates to the technical field of automatic welding equipment, in particular to an annular welding structure for a stator core.

Background

In recent years, with the development of middle and small thermal power industry, market situation is well developed, order quantity is gradually improved, and the welding process of the positioning ribs in the stator core assembly process of the generator in the field takes more time, for example, a stator core assembled by 5 layers of support rings and 12 positioning ribs is provided with 40 fillet welds with 20mm positioning ribs, the rest positioning ribs are 80 fillet welds with 15mm, and during welding, more man hours are consumed by using two man-power symmetrical welding, and the process has the characteristics of simple action, repetition and high labor intensity, so that in order to save the man power and improve the welding efficiency, the automatic welding operation is necessary to be realized.

Disclosure of Invention

In view of the above, it is necessary to provide a ring-shaped welding structure for stator cores.

The utility model provides a stator core is with annular welded structure, includes annular ground rail, direction stand, welding robot, welding power supply and welding controller, the rail surface swing joint of direction stand lower extreme and annular ground rail, the direction stand is along annular ground rail circular motion, welding robot installs in the direction stand upper end to reciprocating type elevating movement is done along the direction stand, welding power supply and welding controller are all installed in the direction stand lateral part for be connected with welding robot electricity, and provide power and control for it.

Preferably, the surface of the annular ground rail is provided with a sliding rail, the bottom of the guide upright post is provided with a sliding block movably clamped with the sliding rail, the side part of the annular ground rail is provided with an annular rack, the bottom of the guide upright post is provided with a driving motor, the output end of the driving motor is meshed with the annular rack, and the guide upright post is driven to do circular motion along the sliding rail.

Preferably, the number of the guide posts is two, two sets of welding robots, and a welding power supply and a welding controller are respectively arranged on the two guide posts.

Preferably, the welding robot comprises a mechanical arm, a welding gun, a sliding plate and a lifting motor, wherein the mechanical arm and the lifting motor are arranged on the sliding plate side by side, a guide rail and a straight rack are arranged on the side wall of the guide upright along the vertical direction, the sliding plate is movably clamped with the guide rail, the output end of the lifting motor penetrates through the sliding plate to be meshed with the straight rack to drive the sliding plate to move up and down along the guide rail, and the welding gun is arranged on the movable end of the mechanical arm.

Preferably, the welding robot further comprises a wire feeder, and the wire feeder is arranged on the mechanical arm.

Preferably, the guide upright post is also provided with a gun cleaning wire cutter, and the gun cleaning wire cutter is positioned under the sliding plate.

Preferably, a laser tracker is additionally arranged at the gun head of the welding gun.

The utility model has the advantages that: the welding robot, the welding power supply and the welding controller are integrated on the guide upright post capable of moving along the circular ground rail, automatic welding operation is carried out around the stator core in the vertical direction, the welding speed is high, the welding quality is good, splashing is avoided almost, the polishing labor cost after welding forming is reduced, the labor intensity is reduced, and the economic benefit is good.

Drawings

Fig. 1 is a schematic perspective view of an annular welding structure for a stator core according to an embodiment;

FIG. 2 is an enlarged schematic view of portion A of FIG. 1;

FIG. 3 is a schematic front view of an annular welding structure for a stator core;

fig. 4 is a schematic view of a partial explosion of an annular welding structure for a stator core.

Description of the embodiments

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1-3, an annular welding structure for a stator core comprises an annular ground rail 1, a guide upright post 2, a welding robot 3, a welding power supply 4 and a welding controller 5, wherein the lower end of the guide upright post 2 is movably connected with the rail surface of the annular ground rail 1, the guide upright post 2 performs circular motion along the annular ground rail 1, the welding robot 3 is mounted at the upper end of the guide upright post 2 and performs reciprocating lifting motion along the guide upright post 2, and the welding power supply 4 and the welding controller 5 are mounted at the side part of the guide upright post 2 and are electrically connected with the welding robot 3 and provide power supply and control for the welding power supply and the welding controller. Specifically, in this embodiment, the guide post 2 adopts the hollow standpipe, reduces the dead weight, can save the loss electric quantity when moving, and the mode of accessible slider cooperation slide rail is connected with annular ground rail 1 in guide post 2 lower extreme for guide post 2 can be under the external driving force effect, along annular ground rail 1 circular motion. The welding robot 3, the welding power supply 4 and the welding controller 5 are integrated on the guide upright post 2, wherein the welding robot 3 adopts a six-axis joint robot of the family Faanaceae, the wrist load is large and can reach 25kg, the working radius exceeds 1800mm, the repeated positioning precision is high, the stability is good, the weight of the welding power supply 4 is heavier, the welding power supply can be installed at the lower end of the guide upright post 2, the function of stabilizing the gravity center is achieved, and the welding controller 5 is used for controlling the motion trail of the welding robot, the welding switch, the welding power and other precision control. The whole equipment can automatically perform welding operation around the welding seam on the surface of the cylindrical stator core (not shown in the figure), does not need manual work, has high welding speed and efficiency, attractive welding seam and good consistency, reduces the subsequent grinding treatment of the welding seam, and has good economic benefit.

As shown in fig. 2, a sliding rail 11 is arranged on the surface of the annular ground rail 1, a sliding block 21 movably clamped with the sliding rail 11 is arranged at the bottom of the guide upright post 2, an annular rack 12 is arranged at the side part of the annular ground rail 1, a driving motor 22 is arranged at the bottom of the guide upright post 2, the output end of the driving motor 22 is meshed with the annular rack 12, and the guide upright post 2 is driven to do circular motion along the sliding rail 11. Specifically, the output end of the driving motor 22 is meshed with the annular rack 12 through a gear, and when the driving motor 22 works, the guiding upright post 2 can be driven to do circular motion, and it is understood that the annular rack 12 is arranged at the outer side of the annular ground rail 1 in the embodiment, and in other embodiments, the annular rack 12 can be arranged at the inner side or on the end surface as long as the meshing with the output end of the driving motor 22 can be ensured. Meanwhile, in order to ensure that the motion track of the guide upright post 2 does not deviate, the circle center of the circular motion overlaps with the circle center of the annular ground rail 1, a sliding rail 11 is arranged on the end face of the annular ground rail 1, and a sliding block 21 at the bottom of the guide upright post 2 is clamped with the sliding rail 11, so that the track of the guide upright post 2 can be limited during motion.

As shown in fig. 1-3, the number of the guide posts 2 is two, two sets of welding robots 3, a welding power supply 4 and a welding controller 5 are respectively installed on the two guide posts 2, and two sets of equipment can synchronously operate, so that welding operation efficiency can be improved.

As shown in fig. 4, the welding robot 3 includes a mechanical arm 31, a welding gun 32, a sliding plate 33 and a lifting motor 34, the mechanical arm 31 and the lifting motor 34 are mounted on the sliding plate 33 side by side, a guide rail 23 and a straight rack 24 are arranged on the side wall of the guide column 2 along the vertical direction, the sliding plate 33 is movably clamped with the guide rail 23, an output end of the lifting motor 34 penetrates through the sliding plate 33 and is meshed with the straight rack 24 to drive the sliding plate 33 to move up and down along the guide rail 23, and the welding gun 32 is mounted on a movable end of the mechanical arm 31.

As shown in fig. 1 to 4, the welding robot 3 further includes a wire feeder 35, and the wire feeder 35 is disposed on the mechanical arm 31. Specifically, the integrated wire feeder 35 is used for feeding welding wires to the welding gun 32, and the wire feeder 35 is located at the elbow of the mechanical arm 31, so that stable feeding of the welding wires is ensured.

As shown in fig. 1-2, the guide upright post 2 is further provided with a gun cleaning wire cutter 6, the gun cleaning wire cutter 6 is located under the sliding plate 33 and can be used for cleaning the welding slag accumulated at the welding gun 32, it is understood that the gun cleaning wire cutter 6 is electrically connected with the welding controller 5, when the welding gun 32 reaches the mouth cleaning position, the gun cleaning wire cutter 6 locks the welding gun 32, and the welding controller 5 controls the cylinder in the welding controller to push the rotary blade to clean the internal splashing of the welding gun 32 without manual cleaning, so that full-automatic treatment is realized.

As shown in fig. 4, a laser tracker 321 is additionally installed at the gun head of the welding gun 32, specifically, the laser tracker 321 is used as a light source to emit laser with a certain wavelength to project onto the surface of the welding seam, so as to form a laser band, and a high-definition camera at another position receives the laser band and images the laser band. Through a series of algorithm processing, three-dimensional characteristic information of the welding seam is converted into an image, and structural information such as the position, the shape and the like of a detected object is generated and provided for the welding controller 5 to guide the welding robot 3 to perform welding work.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (7)

1. An annular welding structure for a stator core, which is characterized in that: including annular ground rail, direction stand, welding robot, welding power supply and welding controller, the rail surface swing joint of direction stand lower extreme and annular ground rail, the direction stand is along annular ground rail circular motion, welding robot installs in the direction stand upper end to reciprocating type elevating movement is along the direction stand, welding power supply and welding controller are all installed in the direction stand lateral part for be connected with welding robot electricity, and provide power and control for it.

2. The annular welding structure for a stator core as claimed in claim 1, wherein: the annular ground rail surface is provided with the slide rail, the guide stand bottom be provided with the slider of slide rail activity joint, annular ground rail lateral part is provided with annular rack, driving motor is installed to the guide stand bottom, driving motor's output and annular rack meshing, the drive guide stand is along the slide rail circular motion.

3. The annular welding structure for a stator core as claimed in claim 1, wherein: the number of the guide posts is two, two sets of welding robots, and a welding power supply and a welding controller are respectively arranged on the two guide posts.

4. The annular welding structure for a stator core as claimed in claim 1, wherein: the welding robot comprises a mechanical arm, a welding gun, a sliding plate and a lifting motor, wherein the mechanical arm and the lifting motor are installed on the sliding plate side by side, a guide rail and a straight rack are arranged on the side wall of a guide upright post along the vertical direction, the sliding plate is movably clamped with the guide rail, the output end of the lifting motor penetrates through the sliding plate to be meshed with the straight rack to drive the sliding plate to move up and down along the guide rail, and the welding gun is installed on the movable end of the mechanical arm.

5. The annular welding structure for a stator core as claimed in claim 4, wherein: the welding robot further comprises a wire feeder, and the wire feeder is arranged on the mechanical arm.

6. The annular welding structure for a stator core as claimed in claim 4, wherein: the guide upright post is also provided with a gun cleaning wire cutter which is positioned under the slide plate.

7. The annular welding structure for a stator core as claimed in claim 4, wherein: and a laser tracker is additionally arranged at the gun head of the welding gun.