Stator rib welding system

Abstract

The utility model discloses a stator rib welding system, the stator rib welding system is provided with a welding station and a stator rib feeding station, the stator rib welding system comprises a workbench, a feeding robot, a plurality of welding robots and a first visual inspection device, the workbench is rotatably arranged on the welding station, the feeding robot is arranged on the workbench, and the first visual inspection device is arranged on the feeding robot. The stator is used for bearing and driving the stator core to rotate; the feeding robot is arranged between the welding station and the stator rib feeding station and used for transferring stator ribs at the stator rib feeding station to stator iron cores at the welding station. The plurality of welding robots are arranged along the peripheral side of the workbench and are used for welding stator ribs to a stator iron core; the first visual detection device is installed on the feeding robot and used for detecting the quality of the stator ribs at the stator rib feeding station and the perpendicularity of the stator ribs arranged on the stator iron core. The utility model aims to solve the problems of low efficiency and poor quality of manual stator rib welding.

Description

Technical Field

[0001] The utility model relates to the technical field of wind power fan production and manufacturing, in particular to a stator reinforcement welding system. Background Art

[0002] With the development of wind power technology, motor models are developing towards larger capacity, and the size of motor boxes is getting larger and larger. The production time of motor stator core is long, and the welding quality requirements are high. Manual welding requires a long working time, and the welding quality is difficult to guarantee, which cannot meet the needs of the production line. Utility Model Content

[0003] The main purpose of the utility model is to provide a stator bar welding system, aiming to solve the problems of low efficiency and poor quality of manual welding of stator bars.

[0004] To achieve the above object, the utility model proposes a stator bar welding system, wherein the stator bar welding system is provided with a welding station and a stator bar feeding station, and the stator bar welding system comprises:

[0005] A workbench, rotatably disposed at the welding station, for carrying and driving the stator core to rotate;

[0006] A loading robot is arranged between the welding station and the stator bar loading station, and is used to transfer the stator bar at the stator bar loading station to the stator core at the welding station;

[0007] A plurality of welding robots are arranged along the circumference of the workbench to weld the stator bars to the stator core; and,

[0008] The first visual inspection device is installed on the feeding robot to detect the quality of the stator bars at the stator bar feeding station and the verticality of the stator bars placed on the stator core.

[0009] Optionally, the stator bar welding system further includes a second visual inspection device, which is disposed on the welding robot and is used to detect the verticality of the stator bar placed on the stator core.

[0010] Optionally, the stator bar welding system also includes a stator bar conveying device, which includes a first conveyor line body and a carrier movable on the first conveyor line body, the carrier is used to carry a plurality of stator bars, and the first conveyor line body is arranged across the stator bar loading station so that the first conveyor line body has a loading position located upstream of the stator bar loading station and a unloading position located downstream of the stator bar loading station.

[0011] Optionally, the stator bar welding system also includes a stator core conveying device, which includes a second conveying line body and a third conveying line body located on both sides of the workbench. A conveying structure is also provided on the workbench, and the conveying structure is used to convey the stator core on the second conveying line body to the workbench, and to convey the stator core welded on the workbench to the third conveying line body.

[0012] Optionally, the stator core conveying device further comprises a hoisting device, and the hoisting device is used to hoist the stator core to the second conveying line body, and to remove the stator core welded on the third conveying line body.

[0013] Optionally, a pedestrian passage is provided on the peripheral side of the stator core conveying device.

[0014] Optionally, a scrap box is further provided on one side of the loading robot, and the loading robot also has a movable stroke between the scrap box and the stator bar loading station so as to place unqualified stator bars into the scrap box.

[0015] Optionally, an eye protection shield is provided on the side of the stator bar loading station facing away from the welding station.

[0016] Optionally, the stator bar welding system also includes a dust collector.

[0017] Optionally, the welding end of the welding robot is also provided with a laser weld seam tracking sensor.

[0018] In the technical solution of the utility model, the stator bar welding system is provided with the welding station and the stator bar feeding station. By setting the rotatable workbench at the welding station, the stator core is driven to rotate through the workbench, so as to meet the operation of the feeding robot to feed the stator bar along the outer periphery of the stator core, and meet the operation of synchronous fixed-point welding of multiple welding robots, so as to realize the automatic welding of the stator bar and improve the welding efficiency. Specifically, after the stator core is placed on the workbench, the feeding robot transports the stator bar to the outer periphery of the stator core at a fixed point. With the rotation of the workbench, the feeding robot can transport the stator bar at a fixed point to cover the outer periphery of the stator core, so as to meet the fixing requirement of the stator bar to the stator core. In this process, when the feeding robot transports the stator bar to the outer periphery of the stator core, a welding robot performs spot welding to realize the pre-fixation of the stator bar, and then multiple welding robots are used to complete the welding points between the stator bar and the stator core, so as to automatically complete the welding of the stator bar, which is highly efficient. On this basis, the feeding robot is also provided with the first visual inspection device, which is used to inspect the quality of the incoming stator bars at the stator bar feeding station on the one hand, and to inspect the verticality between the stator bars and the stator core when the feeding robot transfers the stator bars to the stator core on the other hand, thereby improving the quality of the stator bars welded on the stator core. In summary, the stator bar welding system proposed in this application improves the welding efficiency and welding quality of the stator bars on the stator core, meeting the use requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0020] Figure 1 A three-dimensional schematic diagram of an embodiment of a stator bar welding system provided by the utility model;

[0021] Figure 2 for Figure 1 Schematic diagram of the floor plan.

[0022] Description of Figure Numbers:

[0023] Label name Label name 100 Stator bar welding system 61 The first conveyor line 1 Workbench 62 Carrier 11 Conveying structure 7 Stator core conveyor 2 Loading robot 71 The second conveyor line 3 Welding Robot 72 The third conveyor line 4 First visual inspection device 8 Pedestrian passage 5 Second visual inspection device 9 Eye shield 6 Stator bar conveying device 10 dust collector

[0024] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0027] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0028] With the development of wind power technology, motor models are developing towards larger capacity, and the size of motor boxes is getting larger and larger. The production time of motor stator core is long, and the welding quality requirements are high. Manual welding requires a long working time, and the welding quality is difficult to guarantee, which cannot meet the needs of the production line.

[0029] In view of this, the utility model provides a stator reinforcement welding system. Figure 1 to Figure 2 The embodiment of the stator bar welding system provided by the utility model will be described below in conjunction with specific drawings.

[0030] See also Figure 1 to Figure 2The stator bar welding system 100 is provided with a welding station and a stator bar loading station. The stator bar welding system 100 includes a workbench 1, a loading robot 2, a plurality of welding robots 3 and a first visual inspection device 4. The workbench 1 can be rotatably arranged at the welding station to carry and drive the stator core to rotate; the loading robot 2 is arranged between the welding station and the stator bar loading station to transfer the stator bar at the stator bar loading station to the stator core at the welding station; a plurality of welding robots 3 are arranged along the circumference of the workbench 1 to weld the stator bar to the stator core; the first visual inspection device 4 is installed on the loading robot 2 to detect the quality of the stator bar at the stator bar loading station and the verticality of the stator bar on the stator core.

[0031] In the technical solution of the utility model, the stator bar welding system 100 is provided with the welding station and the stator bar loading station. By arranging the rotatable workbench 1 at the welding station, the stator core is driven to rotate by the workbench 1, so as to meet the operation of the loading robot 2 to load the stator bars along the outer periphery of the stator core and the operation of synchronous fixed-point welding of multiple welding robots 3, thereby realizing the automatic welding of the stator bars and improving the welding efficiency. Specifically, after the stator core is placed on the workbench 1, the loading robot 2 transfers the stator bar to the periphery of the stator core at a fixed point. With the rotation of the workbench 1, the loading robot 2 can transfer the stator bar to cover the periphery of the stator core to meet the fixing requirements of the stator bar to the stator core. In this process, when the loading robot 2 transfers the stator bar to the periphery of the stator core, a welding robot 3 performs spot welding to achieve pre-fixation of the stator bar, and then multiple welding robots 3 are used to complete the welding points between the stator bar and the stator core, and the welding of the stator bar is automatically completed with high efficiency. On this basis, the loading robot 2 is also provided with the first visual inspection device 4, which is used on the one hand to perform quality inspection on the incoming materials of the stator bar at the stator bar loading station, and on the other hand to detect the verticality of the stator bar and the stator core when the loading robot 2 transfers the stator bar to the stator core, thereby improving the quality of welding the stator bar on the stator core. In summary, the stator bar welding system 100 proposed in the present application improves the welding efficiency and welding quality of the stator bars on the stator core, and meets the usage requirements.

[0032] In addition, the stator bar welding system 100 also includes a second visual inspection device 5, which is arranged on the welding robot 3, and the second visual inspection device 5 is used to detect the verticality of the stator bar placed on the stator core. When the loading robot 2 transfers the stator bar to the stator core, the first visual inspection device 4 is able to detect the verticality between the stator bar and the stator core, and then the welding robot 3 performs spot welding to position and fix the stator bar, so as to meet the pre-positioning of the stator bar and avoid the stator bar from falling off. The second visual inspection device 5 is arranged on the welding robot 3, which assists in the detection of the verticality between the stator bar and the stator core, improves the stability of the verticality between the stator bar and the stator core, so as to improve the welding quality and ensure the welding stability. Specifically, the number of the welding robots 3 may not be limited, as long as the welding efficiency and requirements are met. In this embodiment, three welding robots 3 are provided, and the welding robot 3 close to the feeding robot 2 is also used for spot welding to pre-fix the stator ribs. When the stator ribs are loaded, the three welding robots 3 weld synchronously, cooperate with the rotation of the workbench 1, and complete the welding points between the stator ribs and the stator core, with good efficiency and quality. Similarly, the number of the second visual inspection device 5 may not be limited, and each of the welding robots 3 may be provided with the second visual inspection device 5, or it may be selectively installed. In this embodiment, the second visual inspection device 5 is installed on the welding robot 3 opposite to the feeding robot 2, and detects the verticality of the stator ribs and the stator core together with the first visual inspection device 4, with low cost and good effect.

[0033] In addition, the stator bar welding system 100 also includes a stator bar conveying device 6, which includes a first conveyor line body 61 and a carrier 62 movable on the first conveyor line body 61, and the carrier 62 is used to carry multiple stator bars. The first conveyor line body 61 is arranged across the stator bar loading station so that the first conveyor line body 61 has a loading position located upstream of the stator bar loading station and a unloading position located downstream of the stator bar loading station. Since the stator bar loading station is within the activity range of the loading robot 2, there are certain safety hazards in directly replenishing the stator bars at the stator bar loading station. Therefore, in this embodiment, the stator bar welding system 100 is also provided with the stator bar conveying device 6, that is, the first conveying line body 61 straddling the stator bar loading station and the carrier 62 movable on the first conveying line body 61 are provided. The carrier 62 carries the stator bar from the loading position to the stator bar loading station. After the loading robot 2 completes the grabbing and loading, the empty carrier 62 moves from the stator bar loading station to the unloading position, so that the stator bar can be replenished at a place other than the stator bar loading station, thereby improving safety. That is, employees only need to take the carrier 62 at the unloading position to replenish the material and then put it to the loading position to meet the continuous processing needs, without having to approach the stator bar loading station and the loading robot 2, thereby ensuring employee safety.

[0034] In addition, the stator bar welding system 100 also includes a stator core conveying device 7, which includes a second conveying line body 71 and a third conveying line body 72 located on both sides of the workbench 1. A conveying structure 11 is also provided on the workbench 1. The conveying structure 11 is used to convey the stator core on the second conveying line body 71 to the workbench 1, and to convey the stator core welded on the workbench 1 to the third conveying line body 72. It can be understood that the wind turbine proposed in the present application is large in size and mass, and a plurality of welding robots 3 and loading robots 2 are arranged on the periphery of the workbench 1. At this time, it is difficult to directly place the stator core on the workbench 1, and there is a possibility of collision damage to the stator core or the peripheral structure of the workbench 1, and there are even certain safety hazards. Therefore, the second conveyor line 71 and the third conveyor line 72 are also provided in this embodiment, so that the stator core can be placed on the second conveyor line 71, and then transported to the workbench 1 by the second conveyor line 71. After the welding is completed at the workbench 1, the stator core is also moved out of the workbench 1 by the third conveyor line 72, which facilitates the loading and unloading operations of the stator core while improving safety.

[0035] Specifically, the stator core conveying device 7 also includes a hoisting device, which is used to hoist the stator core to the second conveyor line body 71 and remove the stator core that has been welded on the third conveyor line body 72. The stator core has been described in detail above. It has a large mass and volume, and employees cannot manually carry it. Therefore, the hoisting device is also provided in this embodiment, that is, a crane is provided above the stator bar welding system 100. The stator core is hoisted to the second conveyor line body 71 by the crane, which meets the production and processing requirements and has strong safety and stability.

[0036] In addition, a pedestrian passage 8 is provided around the stator core conveying device 7. To facilitate loading and unloading operations of the stator core, the pedestrian passage 8 is provided around the stator core conveying device 7. Employees can unload the stator core from the crane to the second conveying line body 71 at the pedestrian passage 8 or bind the welded stator core to the crane at the third conveying line body 72 to be lifted off the stator bar welding system 100, which is convenient for employees to operate and meets the production process requirements.

[0037] In addition, a scrap box is also provided on one side of the feeding robot 2, and the feeding robot 2 also has a movable stroke between the scrap box and the stator bar feeding station to place unqualified stator bars into the scrap box. The first visual inspection device 4 on the feeding robot 2 is used to detect the quality problems of the incoming stator bars, which have been described in the previous text and will not be repeated here. When the stator bars are detected to have quality problems, a variety of processing methods can be used, including but not limited to notifying employees to handle them, but obviously the processing efficiency is low and affects the production process. Therefore, in this embodiment, the scrap box is also provided on one side of the feeding robot 2, and the feeding robot 2 transfers the stator bars with abnormal quality to the scrap box. On the one hand, it does not affect the production and processing process of the normal production, and on the other hand, it realizes the collection of stator bars with abnormal quality, which is convenient for subsequent maintenance or scrapping operations.

[0038] In addition, a protective shield 9 is provided on the side of the stator bar loading station facing away from the welding station. In this way, when welding is performed at the welding station, the welding light is prevented from affecting one side of the stator bar welding system 100, especially affecting and damaging the eyes of the employees.

[0039] In addition, the stator bar welding system 100 also includes a dust collector 10. In order to avoid the influence of welding smoke on the welding quality, the stator bar welding system 100 is also provided with the dust collector 10. Specifically, the dust collector 10 body is arranged at the periphery of the stator bar welding system 100 to facilitate the operation of employees, and the dust removal duct of the dust collector 10 is arranged above the welding station to ensure the absorption of smoke.

[0040] In addition, a laser weld tracking sensor is also provided at the welding end of the welding robot 3. In order to ensure the stability of the welding robot 3 during the welding process, the welding robot 3 is also provided with the laser weld tracking sensor to detect the weld state during the welding process of the welding robot 3 and ensure the welding quality.

[0041] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. A stator bar welding system, characterized in that: The stator bar welding system is provided with a welding station and a stator bar feeding station, and the stator bar welding system comprises: A workbench, rotatably disposed at the welding station, for carrying and driving the stator core to rotate; A loading robot is arranged between the welding station and the stator bar loading station, and is used to transfer the stator bar at the stator bar loading station to the stator core at the welding station; A plurality of welding robots are arranged along the circumference of the workbench to weld the stator bars to the stator core; and, The first visual inspection device is installed on the feeding robot to detect the quality of the stator bars at the stator bar feeding station and the verticality of the stator bars placed on the stator core.

2. The stator bar welding system according to claim 1, characterized in that: The stator bar welding system also includes a second visual inspection device, which is arranged on the welding robot and is used to detect the verticality of the stator bar placed on the stator core.

3. The stator bar welding system according to claim 1, characterized in that: The stator bar welding system also includes a stator bar conveying device, which includes a first conveying line body and a carrier movable on the first conveying line body, the carrier is used to carry a plurality of stator bars, and the first conveying line body is arranged across the stator bar loading station so that the first conveying line body has a loading position located upstream of the stator bar loading station and a unloading position located downstream of the stator bar loading station.

4. The stator bar welding system according to claim 1, characterized in that: The stator bar welding system also includes a stator core conveying device, which includes a second conveying line body and a third conveying line body located on both sides of the workbench. A conveying structure is also provided on the workbench, and the conveying structure is used to convey the stator core on the second conveying line body to the workbench, and to convey the stator core welded on the workbench to the third conveying line body.

5. The stator bar welding system according to claim 4, characterized in that: The stator core conveying device also includes a hoisting device, which is used to hoist the stator core to the second conveying line body and remove the stator core that has been welded on the third conveying line body.

6. The stator bar welding system according to claim 4, characterized in that: A pedestrian passage is arranged on the peripheral side of the stator core conveying device.

7. The stator bar welding system according to claim 1, characterized in that: A scrap box is also arranged on one side of the feeding robot, and the feeding robot also has a movable stroke between the scrap box and the stator bar feeding station so as to place unqualified stator bars into the scrap box.

8. The stator bar welding system according to claim 1, characterized in that: An eye protection shield is arranged on the side of the stator bar loading station facing away from the welding station.

9. The stator bar welding system according to claim 1, characterized in that: The stator bar welding system also includes a dust collector.

10. The stator bar welding system according to claim 1, characterized in that: The welding end of the welding robot is also provided with a laser weld seam tracking sensor.

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