Novel stator core automatic assembling and welding machine and welding process thereof

Abstract

The invention discloses a novel stator iron core automatic assembling and welding machine and a welding process thereof, the novel stator iron core automatic assembling and welding machine comprises a rack and a workbench located above the rack, and the workbench is provided with an assembling and shaping station and a welding station. The automatic feeding table is located on the workbench, the first shifting system is used for transferring iron core materials from the automatic feeding table to the splicing and shaping station, and the second shifting system is used for transferring the spliced and shaped iron core materials from the splicing and shaping station to the welding station. The second shifting system can transfer the iron core formed by welding from the welding station to a discharging position; due to the fact that the automatic feeding table is arranged, woolen materials can be placed on the automatic feeding table in batches through the process, then the automatic feeding table conducts feeding in sequence under the action of the conveying crawler belt, the welding machine can achieve automatic feeding, automatic splicing and rounding, automatic welding and automatic discharging, manual participation is not needed in the whole process, and the production efficiency is improved. And the welding efficiency is improved, the welding qualification rate is guaranteed, and manual potential safety hazards are avoided.

Description

Technical Field

[0001] The invention relates to a stator core processing technology in the field of motor manufacturing equipment, and in particular to a block-type stator core automatic assembly and welding machine and an automatic assembly and welding process thereof. Background Art

[0002] The stator core is one of the core components of the motor. Its main function is to increase the magnetic flux of the inductor coil and achieve the maximum conversion of electromagnetic power. It is usually composed of a stator and a rotor, in which the stator is the non-rotating part and the rotor is usually embedded in the stator. The stator core plays a key role in motor accessories. For finished motors, if you want to improve the overall performance of a motor, you need to improve the performance of the stator core.

[0003] For the stator core prepared by round welding, in terms of manufacturing process, the stator core is usually prepared by high-precision hardware continuous stamping die and high-speed stamping machine, and then round welding is performed. The welding process can maintain the integrity of the stator and make the magnetic circuit more unobstructed inside the stator. The motor stator core welding equipment usually includes a feeder, a press, a welding module and a feeder. The press is used to ensure the close combination of various components during the welding process. The welding module includes a welding gun and a weld rotation device for welding. However, in the existing welding equipment, the feeder and feeder cannot be fully automatic. It is still necessary to manually operate the loading and unloading work through the feeder and feeder. The shaping and rounding station also needs to manually check the rounding qualification. The welding station also needs manual monitoring. In the welding process, harmful gases and radiation will be generated, and additional environmental protection measures and safety measures need to be taken, such as exhaust dust removal systems and safety protection equipment, etc. Even so, there is still a risk of injury to the operator.

[0004] Therefore, how to improve the full-automatic efficiency of the stator core welding machine, realize automatic loading and unloading, automatic assembly, and welding, and replace manual operation, is a technical problem that technical personnel in this field need to solve. Summary of the invention

[0005] The purpose of the present invention is to provide a stator core automatic assembly welding machine and a welding process thereof. The welding machine has an execution structure for automatic feeding, automatic assembly into a circle, automatic welding, and automatic feeding, and is provided with a welding process in conjunction with the execution structure, so that no manual participation is required throughout the process, thereby improving welding efficiency and avoiding the occurrence of manual safety hazards.

[0006] To achieve the above-mentioned purpose, the present invention provides a stator core automatic assembly welding machine, comprising a frame and a workbench located above the frame, wherein the workbench is provided with an assembly and shaping station and a welding station, and is characterized in that it also comprises an automatic loading platform located on the workbench, a first shifting system for transferring the core material from the automatic loading platform to the assembly and shaping station, and a second shifting system for transferring the assembled and shaped core material from the assembly and shaping station to the welding station, wherein the second shifting system can transfer the welded core from the welding station to the unloading location;

[0007] Furthermore, the first shifting system clamps the iron core material on the automatic loading platform through the first clamping claw and transfers the iron core material to the splicing and shaping station through the first guide rail group;

[0008] Furthermore, the second shifting system clamps the iron core material after the assembly and shaping at the assembly and shaping station through the first synchronous clamping jaw and transfers the assembled iron core material to the welding station through the second guide rail group;

[0009] Furthermore, the second moving system clamps the welded iron core at the welding station through the second synchronous clamp and transfers the welded iron core to the unloading location through the second guide rail group.

[0010] Furthermore, the automatic loading platform includes a conveyor belt driven by a motor and rollers and a magnetic suction component located at the unloading end of the conveyor belt, the magnetic suction component is composed of at least one magnetic suction column fixed by a connecting plate, the outer end of the connecting plate is connected to a magnetic suction cylinder, the output shaft of the magnetic suction cylinder drives the magnetic suction component to reciprocate along the conveying direction of the conveyor belt through the connecting plate, so that an iron core material closest to the magnetic suction component among the multiple iron core materials arranged on the loading platform is separated from an iron core material adjacent to it by a certain gap, thereby forming a clamping space for the first clamp.

[0011] Furthermore, the first clamp is located on one side of the magnetic suction component, the first guide rail group is fixed on the workbench through the first bracket, the first guide rail group includes a first transverse guide rail, a first longitudinal guide rail and a first clamp cylinder connected to the second guide rail through a first clamp cylinder fixing plate, the first clamp cylinder drives the first clamp to open and close; the first clamp cylinder fixing plate moves laterally and longitudinally along the first transverse guide rail and the first longitudinal guide rail under the drive of the guide rail motor, thereby driving the first clamp to move laterally and longitudinally on the first guide rail group.

[0012] Furthermore, a splicing assembly is provided at the shaping station, the splicing assembly consists of a first shaping piece, a second shaping piece, and a third shaping piece, a shaping positioning axis is provided in the middle of the splicing assembly, and the first shaping piece, the second shaping piece, and the third shaping piece are located on the periphery of the shaping positioning axis.

[0013] Furthermore, the first shaping member includes a first shaping push block pushed in the first direction by the first shaping cylinder; the second shaping member includes a second shaping push block pushed in the first direction and the second direction respectively by the second shaping cylinder A and the second shaping cylinder B; the third shaping member includes two third shaping push blocks pushed by two groups of third shaping cylinders.

[0014] Furthermore, the two groups of third shaping cylinders push the two third shaping push blocks in the fourth direction and the fifth direction respectively, and the angle between the fourth direction and the fifth direction is between °-°.

[0015] Furthermore, the second shifting system further comprises a second guide rail group fixed on the workbench through a second bracket, the second guide rail group comprises a second transverse guide rail, a second longitudinal guide rail and a synchronization arm fixed on the second longitudinal guide rail; the first synchronization clamp and the second synchronization clamp are arranged at both ends of the synchronization arm;

[0016] Furthermore, the synchronization arm is provided with a first synchronization jaw cylinder for driving the first synchronization jaw to open and close, and a second synchronization jaw cylinder for driving the second synchronization jaw to open and close;

[0017] Furthermore, the synchronous arm moves laterally and longitudinally along the second transverse guide rail and the second longitudinal guide rail under the drive of the guide rail motor, thereby driving the first synchronous clamping jaw and the second synchronous clamping jaw to move laterally and longitudinally on the second guide rail group.

[0018] The welding station includes a welding cylinder located on a workbench and a pressing cylinder arranged on the upper part of the welding cylinder through a pressing cylinder fixing frame, and also includes a pressing cylinder cylinder located on the upper part of the pressing cylinder fixing frame for driving the pressing cylinder to move up and down in a pressing direction.

[0019] Furthermore, the welding station also includes a top plate cylinder located at the bottom of the workbench and directly below the welding tube. A top plate is provided at the top of the output shaft of the top plate cylinder. The top plate is located at the bottom of the welding tube and is used to push the welded stator core out of the welding tube.

[0020] Furthermore, the welding station also includes a welding assembly located on the side of the welding cylinder, the welding assembly includes a welding support arm and a welding spray gun, the welding spray gun is connected to the workbench in sequence through the welding support arm and the welding frame, the welding frame is provided with a welding longitudinal guide rail, the welding longitudinal guide rail is provided with a welding transverse guide rail, the welding support arm is fixed on the welding transverse guide rail, and under the drive of the first welding cylinder and the second welding cylinder, the welding support arm moves longitudinally and transversely relative to the welding frame, driving the welding spray gun at the end of the welding support arm to weld the shaped iron core material.

[0021] The present invention also provides a novel stator core automatic assembly welding process, using the novel stator core automatic assembly welding machine as described above, characterized in that the welding process includes the following steps:

[0022] S1, loading: multiple core materials are placed on the automatic loading platform in sequence according to the conveying direction of the conveyor belt, and the conveyor belt is controlled by a motor to sequentially convey the multiple core materials to the first clamping claw of the first shifting system, and then the first core material 11 is separated from the adjacent core materials by controlling the magnetic suction component to obtain a clamping space;

[0023] S2, splicing and shaping: controlling the first clamping jaw to clamp the iron core material 11 through the clamping space obtained in S1, and transferring the clamped iron core material to the splicing and shaping station by controlling the first shifting system, and then controlling the splicing assembly to splice the strip-shaped iron core material into a circle to obtain a spliced ​​workpiece;

[0024] S3, welding and fixing: controlling the first synchronous clamping jaw of the second shifting system to move the assembled workpiece in step S2 to the welding station, and then controlling the welding assembly to weld the joint of the assembled workpiece to obtain a welded workpiece;

[0025] S4, unloading: controlling the second synchronous clamp in the second shifting system to automatically unload the welding workpiece in step S3 from the unloading position of the workbench to complete the welding process;

[0026] Among them, in step S4, the second synchronous clamp in the second shifting system moves synchronously with the first synchronous clamp, so that the assembled workpiece is synchronously transferred to the welding station and the welding station to the unloading place.

[0027] The beneficial effects of the novel stator core automatic assembly welding machine and the welding process thereof of the present invention are as follows:

[0028] 1: Due to the automatic loading table, the raw materials can be placed on the automatic loading table in batches, and then the automatic loading table loads the materials in sequence under the action of the conveyor belt. In addition, due to the magnetic suction structure provided on the loading table, the first clamping jaw can be easily clamped and shifted. No manual participation is required throughout the process, which saves labor, reduces safety hazards, and improves processing efficiency.

[0029] 2: Through the cooperation of the first shifting system and the second shifting system, the iron core material can be automatically transferred from the automatic loading table to the splicing and shaping station, and the spliced ​​iron core material can be transferred to the welding station while the welded iron core material can be transferred to the unloading station; the first moving system and the second shifting system are connected in spatial shifting without interfering with each other, and the second shifting system ensures synchronous loading and unloading of the welding station through the synchronous movement of the first synchronous clamp and the second synchronous clamp, thereby maximizing the transfer efficiency of each process and greatly improving the welding efficiency.

[0030] 3: The welding assembly and welding cylinder set at the welding station have novel structures and clever coordination. During welding, the parts to be welded are fixed in the welding cylinder through the pressure cylinder and top plate structure to ensure that there is no movement during the welding process, which further ensures the welding effect. The welding gun can move relative to the welding cylinder to realize welding action, improve welding efficiency and ensure the welding qualification rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the present invention 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 embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0032] Attached Figure 1 A schematic diagram of the overall structure of a novel stator core automatic assembly and welding machine provided by an embodiment of the present invention;

[0033] Attached Figure 2 A top view of the overall structure of a novel stator core automatic assembly and welding machine provided by an embodiment of the present invention;

[0034] Attached Figure 3 A schematic structural diagram of an automatic loading platform and a splicing and shaping station in a novel stator core automatic assembling and welding machine provided by an embodiment of the present invention;

[0035] Attached Figure 4 For attachment Figure 3 Schematic diagram of the matching structure of the spliced ​​components;

[0036] Attached Figure 5 For attachment Figure 4 A schematic diagram of a top view structure;

[0037] Attached Figure 6 A structural schematic diagram of a welding station and a second shifting system in a novel stator core automatic assembly welding machine provided by an embodiment of the present invention;

[0038] Attached Figure 7 For attachment Figure 6 Schematic diagram of the structural layout of the medium-pressure cylinder and the welding cylinder;

[0039] Attached Figure 8 For attachment Figure 6 Schematic diagram of the welding assembly structure.

[0040] Among them: 1 frame, 2 workbench, 3 automatic loading table, 4 first shifting system, 5 second shifting system, 6 splicing and shaping station, 7 splicing assembly, 8 welding station, 9 welding assembly, 10 anchor bolt, 31 conveyor track, 41 first clamping jaw, 11 core material, 32 magnetic suction cylinder, 33 magnetic suction assembly, 42 first bracket, 43 first guide rail group, 44 first clamping jaw cylinder, 45 first clamping jaw cylinder fixing plate, 51 first synchronous clamping jaw, 52 second synchronous clamping jaw, 53 second bracket, 54 second guide rail group, 55 second synchronous clamping jaw cylinder, 56 synchronous arm , 71 shaping positioning shaft, 72 first shaping part, 721 first shaping cylinder, 722 first shaping push block, 73 second shaping part, 731 second shaping cylinder A, 732 second shaping push block, 733 second shaping cylinder B, 734 second swing arm, 74 third shaping part, 741 third shaping cylinder, 742 third shaping push block, 81 welding cylinder, 82 pressing cylinder, 83 pressing cylinder cylinder, 84 pressing cylinder fixing frame, 85 top plate, 86 top plate cylinder, 91 welding frame, 92 welding first cylinder, 93 welding support arm, 94 welding spray gun, 95 welding second cylinder. DETAILED DESCRIPTION

[0041] The core of the invention is to provide a novel stator core automatic assembly welding machine to realize full-automatic welding and automatic loading and unloading.

[0042] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and implementation modes.

[0043] Please refer to Figures 1 to 8 The present invention discloses a novel stator core automatic assembly welding machine, which is similar to the existing welding machine in that it also includes a frame 1 and a workbench 2 located above the frame 1. The workbench 2 is provided with a splicing and shaping station 6 and a welding station 8. The shaping station 6 shapes and splices the free ends of the strip-shaped core material 11 into a circle to facilitate the subsequent welding. The core material 11 is as shown in the attached figure. Figure 3 In the embodiment, there are stators connected to each other in a string. The string-shaped core materials 11 are assembled into a circle by the shaping station 6 and then moved to the welding station 8. The assembled contact surfaces are welded by the welding assembly 9 on the welding station 8, so as to obtain a complete, circular stator core. Compared with the prior art, the scheme to be emphasized in this embodiment is that it also includes an automatic loading table 3 located on the workbench 2, and the core materials 11 stacked in rows are placed on the loading table 3. The loading table 3 can load automatically instead of manual loading. The automatic loading table 3 includes a conveyor belt 31 driven by a motor and rollers and a magnetic suction assembly 33 located at the unloading end of the conveyor belt 31. Multiple rows of neatly stacked core materials 11 are placed on the conveyor belt 31, as shown in the attached figure. Figure 3In the figure, only one row of core material pieces 11 is shown. Multiple rows can be arranged according to production needs, or the conveyor belt 31 can be filled. Driven by the motor and the rollers, the conveyor belt 31 sequentially conveys the core material pieces 11 to the first clamp 41 and close to the magnetic suction component 33.

[0044] In this embodiment, the magnetic attraction component 33 is composed of at least one magnetic attraction column fixed by a connecting plate. Figure 3 As shown in the figure, there are preferably two magnetic columns, of course, they can also be set to one or more, or they can be set to a long strip magnetic structure or other shapes. There is no specific limitation here as long as the magnetic function can be satisfied. The outer end of the connecting plate is connected to a magnetic cylinder 32, and the output shaft of the magnetic cylinder 32 drives the magnetic component 33 to reciprocate along the conveying direction of the conveying crawler 31 through the connecting plate, so that the iron core material 11 closest to the magnetic component 33 among the multiple iron core materials 11 arranged on the loading platform 3 is separated from the iron core material 11 adjacent to it by a certain gap, forming a clamping space for the first clamp 41. This is because there is no gap between the multiple iron core materials 11 stacked on the conveying crawler 31, which is not convenient for the first clamp 4 1. Clamping. When the conveyor belt 31 conveys the frontmost core material 11 to the first clamping jaw 41, there is no gap between it and the second core material 11, and the first clamping jaw 41 is not convenient for clamping. At this time, the magnetic suction cylinder 32 drives the magnetic suction component 33 to approach the first core material 11 through the connecting plate, so that the magnetic suction component 33 sucks the first core material 11, and then the magnetic suction cylinder 32 retracts, so that the magnetic suction component 33 pulls the first core material 11 to the front end (the direction of the magnetic suction cylinder retraction) for a certain distance, so that there is a gap between the first core material 11 and the second core material 11, and the first clamping jaw 41 can extend into the gap to facilitate clamping the first core material 11, and so on and so forth, to achieve clamping the core materials 11 one by one. In this scheme, the magnetic suction component 33 can be a conventional magnet or an electromagnet. If it is an electromagnet, it only needs to be magnetized in the state of adsorption and micro-movement, so that the clamping process is more flexible. Moreover, the present embodiment does not necessarily have a connecting plate structure, and the magnetic suction component 33 can also be directly installed on the output shaft of the magnetic suction cylinder 32, as long as it can achieve the first of the adjacent core materials 11 to be adsorbed and pulled apart to achieve the clamping gap of the first clamping jaw 41.

[0045] According to the welding process of the present scheme, it is also necessary to transfer the core material 11 from the automatic loading table 3 to the first shifting system 4 of the splicing and shaping station 6. The first shifting system 4 clamps the core material 11 on the automatic loading table 3 through the first clamping jaw 41 and transfers the core material 11 to the splicing and shaping station 6 through the first guide rail group 43; the first shifting system 4 realizes the purpose of station shifting of the core material 11, moves the strip-shaped core material 11 to the splicing position on the splicing and shaping station 6, then releases the first clamping jaw 41, and returns to the initial clamping position to prepare for the next clamping. Regarding the first shifting system 4 in the present solution, in a general initial state, the first clamping jaw 41 in the first shifting system 4 is located at the upper part of the frontmost core material 11. When the frontmost core material 11 is slightly displaced by the magnetic attraction of the magnetic attraction assembly 33, the first clamping jaw 41, driven by the first clamping jaw cylinder 44, clamps the core material 11 through the clamping gap, and under the action of the first guide rail group 43, moves up and down and left and right relative to the automatic loading platform 3 to grasp the core material 11 and transfer the grasped core material 11 to the splicing and shaping station 6, and then releases the core material 11 through the first clamping jaw 41, so that the core material 11 is in the splicing position of the splicing and shaping station 6. In this embodiment, as shown in the attached Figure 3 In the embodiment, the first guide rail group 43 is fixed on the workbench 2 through the first bracket 42. The first guide rail group 43 includes a first transverse guide rail, a first longitudinal guide rail and a first clamping jaw cylinder 44 connected to the second guide rail through a first clamping jaw cylinder fixing plate 45. The first clamping jaw cylinder 44 drives the first clamping jaw 41 to open and close. The first clamping jaw cylinder fixing plate 45 is also provided with a first clamping jaw 41 and an execution structure for opening and closing the first clamping jaw 41. The execution structure for opening and closing the first clamping jaw 41 is a common pneumatic opening and closing clamp structure, which is not the core technical point of this solution and will not be described in detail here. For example, it can be a pneumatic clamp, an electric push rod clamp, or a hydraulic clamp. Tools, etc., anything that can achieve the opening and closing clamping of the first clamping jaw 41 will do. It is an existing conventional technical means, and is not limited in this embodiment, nor is it introduced in detail. In this scheme, the first clamping jaw cylinder fixing plate 45 moves laterally and longitudinally along the first transverse guide rail and the first longitudinal guide rail under the drive of the guide rail motor, thereby driving the first clamping jaw 41 to move laterally and longitudinally on the first guide rail group 43, realizing the descending clamping, ascending movement, left and right movement, and descending release actions, thereby shifting the core material 11 from the automatic loading table 3 to the splicing and shaping station 6, and returning to the original position under the drive of the guide rail motor to perform the next clamping action. When descending to clamp, the first clamping jaw cylinder 44 opens the first clamping jaw 41 to clamp the core material 11, and then the first clamping jaw cylinder 44 clamps the core material 11 and holds it, and under the drive of the first guide rail group 43, it rises, translates, and descends in sequence until the core material 11 is located at the correct position of the splicing and shaping station 6, and then releases the first clamping jaw 41 to complete the clamping, moving, and releasing actions.

[0046] According to the welding process of this scheme, the core material 11 moved to the splicing and shaping station 6 is to be automatically spliced ​​at the station. Specifically, a splicing assembly 7 is provided at the splicing and shaping station 6. The splicing assembly 7 is formed by multiple groups of shaping parts that surround the core material 11 in space. Through the driving structure of each shaping part, the core material 11 that is initially in a strip shape is spliced ​​into a circle under the cooperation of each shaping part. Specifically, the splicing assembly 7 is composed of a first shaping part 72, a second shaping part 73, and a third shaping part 74. A shaping positioning shaft 71 is provided in the middle of the splicing assembly 7. The first shaping part 72, the second shaping part 73, and the third shaping part 74 are located on the periphery of the shaping positioning shaft 71. The shaping and positioning shaft 71 is located on one side of the core material 11. Under the action of the splicing component 7, the strip core material 11 will be wrapped and spliced ​​into a circle with the shaping and positioning shaft 71 as the center. The spliced ​​core material 11 is coaxial with the shaping and positioning shaft 71, and the inner circle of the spliced ​​core material 11 is in close contact with the outer wall of the shaping and positioning shaft 71.

[0047] Regarding the circular movement of the assembly 7 in this embodiment, the first shaping member 72 includes a first shaping push block 722 pushed in a first direction by a first shaping cylinder 721; Figure 4 As shown in FIG. 1 , the first shaping push block 722 includes at least one push block structure. Figure 4 Preferably, there are two of them, which are located in the middle of the core material 11, and the middle of the core material 11 is pushed against the side wall of the shaping positioning shaft 71; the second shaping member 73 includes a second shaping push block 732 that is pushed in the first direction and the second direction by the second shaping cylinder A731 and the second shaping cylinder B733 respectively, and the core material 11 is pushed in the first direction synchronously and then pushed in the second direction synchronously, such as Figure 4As shown in the figure, after the two second shaping cylinders A731 are pushed synchronously in the first direction (that is, in the same direction as the pushing direction of the first shaping push block 722 pushed by the first shaping cylinder 721 in the first direction) for a certain distance, the two second shaping cylinders B733 bring the two sides of the core material 11 inward in the second direction, that is, the second swing arm 734 first pushes the core material in the first direction, and then pushes the material in the second direction, so that the two sides of the core material 11 first move parallel to the first direction, and then move relative to each other in the second direction. As shown in the figure, the second direction is preferably a direction perpendicular to the first direction, so that the outer part of the middle part of the core material 11 is brought together and abuts against the side wall of the shaping positioning shaft 71; the third The shaping piece 74 includes two third shaping push blocks 742 pushed by two groups of third shaping cylinders 741. The function of the two third shaping push blocks 742 is to push the two end portions of the core material 11 to the side walls of the shaping positioning shaft 71 and to splice the two free ends of the core material 11. The two groups of third shaping cylinders 741 push the two third shaping push blocks 742 in the fourth direction and the fifth direction respectively. The angle between the fourth direction and the fifth direction is between 30°-70°, preferably 40°. With such a design, the two ends of the core material 11 can be better spliced ​​together, and the inner wall of the core material 11 can be completely against the side wall of the shaping positioning shaft 71, thereby completing the splicing action and obtaining a core material that is spliced ​​into a circle.

[0048] Then, according to the welding process of this scheme, under the action of the second shifting system 5, the iron core material 11 after being assembled into a circle is transferred from the assembly and shaping station 6 to the welding station 8, so that the welding station 8 performs welding processing on the iron core material 11; wherein, the second shifting system 5 can also synchronously transfer the iron core formed by welding in the previous step from the welding station 8 to the unloading place. Specifically, the second shifting system 5 clamps the assembled and shaped iron core material 11 on the assembly and shaping station 6 through the first synchronous clamping jaw 51 and transfers the assembled iron core material 11 to the welding station 8 through the second guide rail group 54; at the same time, the second moving system 5 clamps the iron core welded in the welding station 8 through the second synchronous clamping jaw 52 and transfers the welded iron core to the unloading place through the second guide rail group 54.

[0049] As a more detailed description of this embodiment, as shown in the attached Figure 6As shown, the second shifting system 5 also includes a second guide rail group 54 fixed on the workbench 2 by a second bracket 53, and the second guide rail group 54 includes a second transverse guide rail, a second longitudinal guide rail and a synchronization arm 56 fixed on the second longitudinal guide rail; the first synchronization clamp 51 and the second synchronization clamp 52 are arranged at both ends of the synchronization arm 56; for the up and down, left and right movement of the second guide rail group 54 in the second shifting system 5, refer to the description of the motion execution principle of the first guide rail group 43 in the first shifting system 4, which is consistent with the present principle and will not be repeated here. In short, combined with the motor drive mechanism, the second guide rail group 54 can realize the lifting and lowering, left and right movement of the second synchronization clamp 52 and the first synchronization clamp 51, as shown in the attached figure. Figure 6 As shown in Chinese, the synchronization arm 56 is provided with a first synchronization jaw cylinder driving the first synchronization jaw 51 to open and close, and a second synchronization jaw cylinder 55 driving the second synchronization jaw 52 to open and close; the synchronization arm 56 is driven by the guide rail motor to move horizontally and vertically along the second transverse guide rail and the second longitudinal guide rail, thereby driving the first synchronization jaw 51 and the second synchronization jaw 52 to move horizontally and vertically on the second guide rail group 54. At the same time, the iron core material 11 assembled on the assembly and shaping station 6 is moved to the welding station 8, and the iron core material 11 after the welding machine is completed is transferred to the unloading position.

[0050] As a more detailed description of this embodiment, as shown in the attached Figure 7-8 As shown in the figure, the welding station 8 includes a welding cylinder 81 located on the workbench 2 and a pressing cylinder 82 arranged on the upper part of the welding cylinder 81 through a pressing cylinder fixing frame 84, and also includes a pressing cylinder cylinder 83 located on the upper part of the pressing cylinder fixing frame 84 for driving the pressing cylinder 82 to move up and down in the pressing direction. The first synchronous clamp 51 places the clamped iron core material 11 assembled into a circle into the welding tube 81. The welding station 8 also includes a top plate cylinder 86 located at the lower part of the workbench 2 and directly below the welding tube 81. The top end of the output shaft of the top plate cylinder 86 is provided with a top plate 85. The iron core material 11 to be welded is located on the top plate 85. After being placed in place, the pressing cylinder 83 drives the pressing cylinder 82 to move downward to press the upper end surface of the iron core material 11. Under the cooperation of the top plate 85 and the circumferential positioning of the welding tube 81, the iron core material 11 to be welded is spatially positioned in the welding tube 81, and then the welding process is carried out. The top plate 85 is located at the bottom of the welding tube 81, and is used to push the welded stator core out of the welding tube 81; the second synchronous clamp 52 clamps the ejected, welded iron core material 11 and moves it to the unloading position.

[0051] Regarding the welding assembly 9, it is located on the side of the welding tube 81. The welding assembly 9 includes a welding arm 93 and a welding spray gun 94. The welding arm 93 drives the welding spray gun 94 to move up and down, and can be away from or close to the welding tube 81, thereby realizing the welding action. Specifically, the welding spray gun 94 is connected to the workbench 2 through the welding arm 93 and the welding frame 91 in sequence. The welding frame 91 is provided with a welding longitudinal guide rail, and the welding longitudinal guide rail is provided with a welding transverse guide rail. The welding arm 93 is fixed on the welding transverse guide rail, and under the drive of the first welding cylinder 92 and the second welding cylinder 95, the welding arm 93 moves longitudinally and transversely relative to the welding frame 91, driving the welding spray gun 94 at the end of the welding arm 93 to weld the shaped iron core material 11.

[0052] This embodiment also provides a novel stator core automatic assembly welding process, using the novel stator core automatic assembly welding machine as described above, including the following steps:

[0053] S1, loading: placing multiple iron core materials (11) on the automatic loading platform 3 in sequence according to the conveying direction of the conveying crawler 31, and controlling the conveying crawler 31 through a motor to sequentially convey the multiple iron core materials 11 to the first clamping claw 41 of the first shifting system 4, and then controlling the magnetic suction component 33 to separate the first iron core material 11 from the adjacent iron core material 11 to obtain a clamping space;

[0054] S2, splicing and shaping: controlling the first clamping jaw 41 to clamp the iron core material 11 through the clamping space obtained in S1, and controlling the first shifting system 4 to transfer the clamped iron core material 11 to the splicing and shaping station 6, and then controlling the splicing assembly 7 to splice the strip-shaped iron core material 11 into a circle to obtain a spliced ​​workpiece;

[0055] S3, welding and fixing: controlling the first synchronous clamping jaw 51 of the second displacement system 5 to move the assembled workpiece in step S2 to the welding station 8, and then controlling the welding assembly 9 to weld the joint of the assembled workpiece to obtain a welded workpiece;

[0056] S4, unloading: controlling the second synchronous clamping jaw 52 in the second shifting system 5 to automatically unload the welding workpiece in step S3 from the unloading position of the workbench 2 to complete the welding process;

[0057] Among them, in step S4, the second synchronous clamping jaw 52 in the second shifting system 5 moves synchronously with the first synchronous clamping jaw 51, so that the assembled workpiece is synchronously transferred to the welding station 8 and the welding station 8 is synchronously transferred to the unloading place.

[0058] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0059] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0060] Professionals may further appreciate that the unit structures and steps of each example described in conjunction with the embodiments disclosed herein can be implemented by electronic hardware, computer software, or a combination of the two. In order to clearly illustrate the interchangeability of hardware and software, the composition and steps of each example have been generally described in the above description according to function. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professionals and technicians may use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present invention.

[0061] The steps of the method described in conjunction with the embodiments disclosed herein may be implemented directly using hardware, a software module executed by a processor, or a combination of the two. The software module may be placed in a random access memory (RAM), a memory, a read-only memory (ROM), an electrically programmable ROM, an electrically erasable programmable ROM, a register, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.

[0062] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A novel stator core automatic assembly and welding machine, comprising a frame (1) and a workbench (2) located above the frame (1), wherein the workbench (2) is provided with an assembly and shaping station (6) and a welding station (8), wherein: It also includes an automatic loading platform (3) located on the workbench (2), a first shifting system (4) for transferring the iron core material (11) from the automatic loading platform (3) to the splicing and shaping station (6), and a second shifting system (5) for transferring the spliced ​​and shaped iron core material (11) from the splicing and shaping station (6) to the welding station (8), wherein the second shifting system (5) can transfer the welded iron core from the welding station (8) to the unloading location; The first shifting system (4) clamps the iron core material (11) on the automatic loading platform (3) through the first clamping claw (41) and transfers the iron core material (11) to the splicing and shaping station (6) through the first guide rail group (43); The second displacement system (5) clamps the iron core material (11) after being assembled and shaped at the assembly and shaping station (6) through the first synchronous clamp (51) and transfers the assembled iron core material (11) to the welding station (8) through the second guide rail group (54); The second moving system (5) clamps the welded iron core at the welding station (8) through the second synchronous clamp (52) and transfers the welded iron core to the unloading location through the second guide rail group (54).

2. A new type of stator core automatic assembly and welding machine as claimed in claim 1, characterized in that: The automatic loading platform (3) comprises a conveying belt (31) driven by a motor and rollers, and a magnetic suction component (33) located at the unloading end of the conveying belt (31), wherein the magnetic suction component (33) is composed of at least one magnetic suction column fixed by a connecting plate, and the outer end of the connecting plate is connected to a magnetic suction cylinder (32), and the output shaft of the magnetic suction cylinder (32) drives the magnetic suction component (33) to move back and forth along the conveying direction of the conveying belt (31) through the connecting plate, so that an iron core material (11) closest to the magnetic suction component (33) among a plurality of iron core materials (11) arranged on the loading platform (3) is separated from an iron core material (11) adjacent to it by a certain gap, thereby forming a clamping space for the first clamp (41).

3. A new type of stator core automatic assembly and welding machine as claimed in claim 2, characterized in that: The first clamping jaw (41) is located on one side of the magnetic attraction component (33); the first guide rail group (43) is fixed on the workbench (2) through a first bracket (42); the first guide rail group (43) includes a first transverse guide rail, a first longitudinal guide rail and a first clamping jaw cylinder (44) connected to the second guide rail through a first clamping jaw cylinder fixing plate (45); the first clamping jaw cylinder (44) drives the first clamping jaw (41) to open and close; the first clamping jaw cylinder fixing plate (45) is driven by a guide rail motor to move transversely and longitudinally along the first transverse guide rail and the first longitudinal guide rail, thereby driving the first clamping jaw (41) to move transversely and longitudinally on the first guide rail group (43).

4. A novel stator core automatic assembly and welding machine as claimed in claim 1, characterized in that: The shaping station (6) is provided with a splicing assembly (7), which is composed of a first shaping piece (72), a second shaping piece (73), and a third shaping piece (74). A shaping positioning shaft (71) is provided in the middle of the splicing assembly (7), and the first shaping piece (72), the second shaping piece (73), and the third shaping piece (74) are located on the periphery of the shaping positioning shaft (71).

5. A novel stator core automatic assembly and welding machine as claimed in claim 4, characterized in that: The first shaping member (72) includes a first shaping push block (722) pushed in a first direction by a first shaping cylinder (721); the second shaping member (73) includes two second shaping push blocks (732) pushed in a first direction and a second direction respectively by a second shaping cylinder A (731) and a second shaping cylinder B (733); the third shaping member (74) includes two third shaping push blocks (742) pushed by two groups of third shaping cylinders (741).

6. A novel stator core automatic assembly and welding machine as claimed in claim 5, characterized in that: The two groups of third shaping cylinders (741) push the two third shaping push blocks (742) in a fourth direction and a fifth direction respectively, and the included angle between the fourth direction and the fifth direction is between 30° and 70°.

7. A novel stator core automatic assembly and welding machine as claimed in claim 1, characterized in that: The second shifting system (5) further comprises a second guide rail group (54) fixed to the workbench (2) via a second bracket (53), the second guide rail group (54) comprising a second transverse guide rail, a second longitudinal guide rail and a synchronization arm (56) fixed to the second longitudinal guide rail; the first synchronization clamping jaw (51) and the second synchronization clamping jaw (52) are arranged at both ends of the synchronization arm (56); The synchronization arm (56) is provided with a first synchronization jaw cylinder for driving the first synchronization jaw (51) to open and close, and a second synchronization jaw cylinder (55) for driving the second synchronization jaw (52) to open and close; The synchronous arm (56) moves laterally and longitudinally along the second transverse guide rail and the second longitudinal guide rail under the drive of the guide rail motor, thereby driving the first synchronous clamping jaw (51) and the second synchronous clamping jaw (52) to move laterally and longitudinally on the second guide rail group (54).

8. A novel stator core automatic assembly and welding machine as claimed in claim 1, characterized in that: The welding station (8) comprises a welding cylinder (81) located on a workbench (2) and a pressing cylinder (82) arranged on the upper part of the welding cylinder (81) via a pressing cylinder fixing frame (84), and also comprises a pressing cylinder cylinder (83) located on the upper part of the pressing cylinder fixing frame (84) for driving the pressing cylinder (82) to move up and down in a pressing direction.

9. A novel stator core automatic assembly and welding machine as claimed in claim 8, characterized in that: The welding station (8) further comprises a top plate cylinder (86) located at the lower part of the workbench (2) and directly below the welding cylinder (81); a top plate (85) is provided at the top end of the output shaft of the top plate cylinder (86); the top plate (85) is located at the bottom of the welding cylinder (81); and the top plate (85) is used to push the stator core out of the welding cylinder (81) after welding; The welding station (8) also includes a welding assembly (9) located on the side of the welding tube (81), the welding assembly (9) including a welding arm (93) and a welding spray gun (94), the welding spray gun (94) being connected to the workbench (2) via the welding arm (93) and the welding frame (91) in sequence, the welding frame (91) being provided with a welding longitudinal guide rail, the welding longitudinal guide rail being provided with a welding transverse guide rail, the welding arm (93) being fixed on the welding transverse guide rail, and under the drive of the first welding cylinder (92) and the second welding cylinder (95), the welding arm (93) moves longitudinally and transversely relative to the welding frame (91), thereby driving the welding spray gun (94) at the end of the welding arm (93) to weld the shaped iron core material (11).

10. A novel stator core automatic assembly welding process, using the novel stator core automatic assembly welding machine as claimed in any one of claims 1 to 8, characterized in that: The welding process comprises the following steps: S1, loading: placing a plurality of iron core material pieces (11) on the automatic loading platform (3) in sequence according to the conveying direction of the conveying crawler (31), and controlling the conveying crawler (31) by a motor to sequentially convey the plurality of iron core material pieces (11) to the first clamping claw (41) of the first shifting system (4), and then controlling the magnetic suction component (33) to separate the first iron core material piece (11) from the adjacent iron core material piece (11) to obtain a clamping space; S2, splicing and shaping: controlling the first clamping jaw (41) to clamp the iron core material (11) through the clamping space obtained in S1, and controlling the first shifting system (4) to transfer the clamped iron core material (11) to the splicing and shaping station (6), and then controlling the splicing assembly (7) to splice the strip-shaped iron core material (11) into a circle to obtain a spliced ​​workpiece; S3, welding and fixing: controlling the first synchronous clamping jaw (51) of the second displacement system (5) to move the assembled workpiece in step S2 to the welding station (8), and then controlling the welding assembly (9) to weld the joint of the assembled workpiece to obtain a welded workpiece; S4, unloading: controlling the second synchronous clamp (52) in the second shifting system (5) to automatically unload the welding workpiece in step S3 from the unloading position of the workbench (2), thereby completing the welding process; wherein, in step S4, the second synchronous clamp (52) in the second shifting system (5) moves synchronously with the first synchronous clamp (51), so that the assembled workpiece is synchronously transferred to the welding station (8) and the welding station (8) is synchronously transferred to the unloading position.

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