A new type of stator core automatic assembling and welding machine and welding process thereof

Abstract

The application discloses a novel automatic assembling and welding machine for a stator core and a welding process thereof, which comprises a rack and a workbench arranged above the rack, and a split shaping station and a welding station are arranged on the workbench, characterized in that the automatic assembling and welding machine further comprises an automatic feeding table arranged on the workbench, a first displacement system for transferring core material parts from the automatic feeding table to the split shaping station, and a second displacement system for transferring the split-shaped core material parts from the split shaping station to the welding station, and the second displacement system can transfer the welded and shaped core from the welding station to a discharging position; since the automatic feeding table is arranged, the process can realize that the raw materials are placed on the automatic feeding table in batches, and then the automatic feeding table is sequentially fed under the action of a conveying track, the welding machine can realize automatic feeding, automatic split into a circle, automatic welding and automatic discharging, and the whole process does not need manual participation, welding efficiency is improved, welding qualification rate is ensured, and the occurrence of manual safety hazards is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of motor manufacturing equipment, in particular to a block type stator core automatic assembling and welding machine and a block type stator core automatic assembling and welding process. BACKGROUND

[0002] The stator core is one of the core components in the motor, mainly functions to increase the magnetic flux of the inductance coil and realize the maximum conversion of electromagnetic power. It is usually composed of a stator and a rotor, wherein the stator is the non-rotating part, and the rotor is usually embedded in the inner position of the stator. The stator core plays a key role in the motor accessories. For the finished motor, in order to improve the overall performance of the motor, the performance of the stator core needs to be improved.

[0003] For the stator core prepared by the round welding, in the manufacturing process, the stator core is usually prepared by high-precision hardware continuous stamping die matched with high-speed stamping machine, and then is subjected to round welding. The welding process can maintain the integrity of the stator, so that the magnetic circuit is more smooth in the stator. The motor stator core welding equipment usually includes a feeding machine, a press, a welding module and a discharging machine. The press is used to ensure the close combination of the components in the welding process. The welding module includes a welding gun and a welding seam rotating device, which are used for welding work. However, in the existing welding equipment, the feeding machine and the discharging machine cannot be fully automatic, and manual operation is still needed for feeding and discharging work. Manual inspection is also needed for the round welding qualification in the shaping and round welding station, and manual monitoring is also needed in the welding station. In the welding process, harmful gases and radiation are generated, and additional environmental protection measures and safety measures need to be taken, such as dust removal system and safety protection equipment. 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 feeding and discharging, automatic assembling and welding, and replace manual operation is a technical problem to be solved by those skilled in the art. SUMMARY

[0005] The present application aims to provide a block type stator core automatic assembling and welding machine and a welding process. The welding machine has an automatic feeding, automatic round assembling, automatic welding and automatic feeding execution structure, and is provided with a welding process cooperating with the execution structure. The whole process does not need manual participation, improves the welding efficiency and avoids the occurrence of manual safety hazards.

[0006] In order to achieve the above-mentioned purpose, the application provides a kind of automatic assembling and welding machine of stator core, including rack and the workbench located above rack, workbench is provided with split shaping station and welding station, it is characterized in that, still including automatic feeding table located on workbench, first displacement system for transferring core material from automatic feeding table to split shaping station, second displacement system for transferring split shaping after core material from split shaping station to welding station, wherein, the second displacement system can be transferred from welding station to discharge place after welding and shaping of core;

[0007] Further, the first displacement system is transferred to the split shaping station by the first guide rail group through the first gripper of the core material on the automatic feeding table;

[0008] Further, the second displacement system is transferred to the welding station by the second guide rail group through the first synchronous gripper of the split shaping after core material on the split shaping station;

[0009] Further, the second displacement system is transferred to the discharge place by the second guide rail group through the second synchronous gripper of the welding after core;

[0010] Further, the automatic feeding table includes a conveying track driven by a motor and a carrier roller, and a magnetic attraction assembly located at the discharge end of the conveying track, the magnetic attraction assembly is composed of at least one magnetic attraction column fixed by a connecting plate, the outer end of the connecting plate is connected with a magnetic attraction air cylinder, the output shaft of the magnetic attraction air cylinder drives the magnetic attraction assembly to reciprocate along the conveying direction of the conveying track through the connecting plate, so that the core material closest to the magnetic attraction assembly among the plurality of core materials arranged on the feeding table is separated from the adjacent core material by a certain gap to form the clamping space of the first gripper.

[0011] Further, the first gripper is located on one side of the magnetic attraction assembly, the first guide rail group is fixed on the workbench through a first support, and the first guide rail group includes a first transverse guide rail, a first longitudinal guide rail and a first gripper air cylinder connected to the second guide rail through a first gripper air cylinder fixed plate, the first gripper air cylinder drives the first gripper to open and close;The first gripper air cylinder fixed plate moves transversely 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 gripper to move transversely and longitudinally on the first guide rail group.

[0012] Further, the shaping station is provided with a split assembly, the split assembly is composed of a first shaping part, a second shaping part and a third shaping part, a shaping positioning shaft is arranged in the middle of the split assembly, and the first shaping part, the second shaping part and the third shaping part are located at the periphery of the shaping positioning shaft.

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

[0014] Further, 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 included angle between the fourth direction and the fifth direction is between ° and °.

[0015] Further, the second displacement system further comprises a second guide rail group fixed on the workbench by a second support, the second guide rail group comprising a second transverse guide rail, a second longitudinal guide rail and a synchronous arm fixed on the second longitudinal guide rail; the first synchronous jaw and the second synchronous jaw are arranged at two ends of the synchronous arm.

[0016] Further, the synchronous arm is provided with a first synchronous jaw cylinder for driving the first synchronous jaw to open and close, and a second synchronous jaw cylinder for driving the second synchronous jaw to open and close.

[0017] Further, the synchronous arm moves 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 jaw and the second synchronous jaw to move transversely and longitudinally on the second guide rail group.

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

[0019] Further, the welding station further comprises a top plate cylinder located at the lower part of the workbench and the lower part of the welding cylinder, and the top end of the output shaft of the top plate cylinder is provided with a top plate located at the bottom of the welding cylinder and used for ejecting the welded stator core out of the welding cylinder.

[0020] Further, the welding station further comprises a welding assembly located at the side of the welding cylinder, the welding assembly comprising a welding support arm and a welding torch, the welding torch being connected to the workbench in sequence through the welding support arm and a welding frame, the welding frame being provided with a welding longitudinal guide rail, the welding longitudinal guide rail being provided with a welding transverse guide rail, the welding support arm being fixed on the welding transverse guide rail, and the welding support arm moving longitudinally and transversely relative to the welding frame under the drive of a welding first cylinder and a welding second cylinder, thereby driving the welding torch at the end of the welding support arm to weld the shaped core material.

[0021] The application also provides a novel automatic assembling and welding process for a stator core.

[0022] S1, feeding: a plurality of core pieces are placed on the automatic feeding table in sequence according to the conveying direction of the conveying track, and the plurality of core pieces are conveyed to the first gripper of the first displacement system in sequence through the motor-controlled conveying track, then the first core piece 11 is separated from the adjacent core piece through the control of the magnetic attraction assembly, and a clamping space is obtained;

[0023] S2, splicing and shaping: the first gripper clamps the core piece 11 in the clamping space obtained through S1, and the clamped core piece is conveyed to the splicing and shaping station through the control of the first displacement system, then the splicing assembly is controlled to splice the strip-shaped core piece into a circle to obtain a spliced workpiece;

[0024] S3, welding and fixing: the first synchronous gripper of the second displacement system is controlled to convey the spliced workpiece in step S2 to the welding station, then the welding assembly is controlled to weld the spliced workpiece to obtain a welded workpiece;

[0025] S4, discharging: the second synchronous gripper in the second displacement system is controlled to automatically discharge the welded workpiece in step S3 from the discharge position of the workbench, and the welding process is completed;

[0026] In step S4, the second synchronous gripper in the second displacement system moves synchronously with the first synchronous gripper, so that the spliced workpiece is conveyed to the welding station and the welded workpiece is conveyed to the discharge position synchronously.

[0027] The novel automatic assembling and welding machine for a stator core and the welding process thereof have the following advantages:

[0028] 1: Because the automatic feeding table is provided, the raw materials can be placed on the automatic feeding table in batches, then the automatic feeding table feeds in sequence under the action of the conveying track, and because the magnetic attraction structure is provided on the feeding table, the first gripper can be easily clamped and displaced, the whole process does not need manual participation, labor is saved, safety hazards are reduced, and the processing efficiency is improved.

[0029] 2: Through the cooperation of the first displacement system and the second displacement system, the core pieces can be automatically conveyed from the automatic feeding table to the splicing and shaping station, the spliced core pieces can be conveyed to the welding station, and the welded core pieces can be conveyed to the discharge station at the same time; the first displacement system and the second displacement system are connected in space displacement and do not interfere with each other, the synchronous movement of the first synchronous gripper and the second synchronous gripper of the second displacement system ensures that the feeding and discharging of the welding station are carried out synchronously, the transfer efficiency of each process is maximized, and the welding efficiency is greatly improved.

[0030] 3: The welding assembly and the welding cylinder structure arranged in the welding station are novel and ingenious, and when welding, the workpiece to be welded is fixed in the welding cylinder through the pressing cylinder and the top plate structure, so that the welding process is free from movement, the welding effect is further ensured, the welding torch can move relative to the welding cylinder to realize the welding action, improve the welding efficiency, and ensure the welding qualification rate. BRIEF DESCRIPTION OF DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort on the basis of the provided drawings.

[0032] FIG. 1 is a schematic structural diagram of a new type of automatic assembling and welding machine for a stator core provided by the embodiment of the present application; Figure 1 FIG. 2 is a schematic structural diagram of the whole machine of the new type of automatic assembling and welding machine for a stator core provided by the embodiment of the present application;

[0033] FIG. 3 is a top view of the whole machine of the new type of automatic assembling and welding machine for a stator core provided by the embodiment of the present application; Figure 2 FIG. 4 is a structural schematic diagram of the automatic feeding table and the splicing and shaping station in the new type of automatic assembling and welding machine for a stator core provided by the embodiment of the present application;

[0034] Figure 3 FIG. 5 is a structural schematic diagram of the splicing assembly in the new type of automatic assembling and welding machine for a stator core provided by the embodiment of the present application;

[0035] FIG. 6 is a structural schematic diagram of the pressing cylinder and the welding cylinder in the new type of automatic assembling and welding machine for a stator core provided by the embodiment of the present application; Figure 4 Figure 3 FIG. 7 is a structural schematic diagram of the welding assembly in the new type of automatic assembling and welding machine for a stator core provided by the embodiment of the present application;

[0036] FIG. 8 is a top view structural schematic diagram of the welding assembly in the new type of automatic assembling and welding machine for a stator core provided by the embodiment of the present application; Figure 5 Figure 4 FIG. 9 is a structural schematic diagram of the second displacement system in the new type of automatic assembling and welding machine for a stator core provided by the embodiment of the present application;

[0037] FIG. 10 is a structural schematic diagram of the pressing cylinder and the welding cylinder in the new type of automatic assembling and welding machine for a stator core provided by the embodiment of the present application; Figure 6 FIG. 11 is a structural schematic diagram of the welding assembly in the new type of automatic assembling and welding machine for a stator core provided by the embodiment of the present application.

[0038] Figure 7 Figure 6

[0039] Figure 8 Figure 6

[0040] ​​​​​​​​​Wherein: 1 rack, 2 workbench, 3 automatic feeding table, 4 first displacement system, 5 second displacement system, 6 split shaping station, 7 split assembly, 8 welding station, 9 welding assembly, 10 anchor bolt, 31 conveying crawler belt, 41 first clamping jaw, 11 core material, 32 magnetic suction cylinder, 33 magnetic suction assembly, 42 first support, 43 first guide rail group, 44 first clamping cylinder, 45 first clamping cylinder fixing plate, 51 first synchronous clamping jaw, 52 second synchronous clamping jaw, 53 second support, 54 second guide rail group, 55 second synchronous clamping 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 torch, 95 welding second cylinder. DETAILED DESCRIPTION

[0041] The core of the present application is to provide a new type of stator core automatic assembly welding machine, which realizes full-automatic welding and automatic feeding and discharging.

[0042] In order to enable those skilled in the art to better understand the technical solutions of the present application, the present application will be further described in detail below in conjunction with the drawings and embodiments.

[0043] Please refer to Figures 1 to 8 The present application discloses a new type of stator core automatic assembly welding machine, which is similar to the existing welding machine in that it also comprises a rack 1 and a workbench 2 located above the rack 1, the workbench 2 is provided with a split shaping station 6 and a welding station 8, the split shaping station 6 shapes and splits the strip-shaped core material 11 into a circular shape at both ends of the free end, which is convenient for subsequent welding, and the core material 11 is like the attached Figure 3 The core material 11 is connected to each other in a block, and is in a string shape, the split shaping station 6 splits the string-shaped core material 11 into a circle, and then moves to the welding station 8, and the welding assembly 9 on the welding station 8 welds the split contact surface, so as to obtain a complete and circular stator core. Compared with the prior art, the scheme to be emphasized in the present embodiment is that the automatic feeding table 3 is further arranged on the workbench 2, the core material 11 arranged in rows is placed on the feeding table 3, the feeding table 3 can automatically feed, which replaces manual feeding, and the automatic feeding table 3 comprises a conveying crawler belt 31 driven by a motor and a roller and a magnetic suction assembly 33 located at the lower end of the conveying crawler belt 31, and the conveying crawler belt 31 is placed with the neatly arranged multiple rows of core material 11, as shown in the attached Figure 3In the middle, only the state of a row of core material pieces 11 is shown. According to production needs, multiple rows can be arranged, or the conveying track 31 can be fully loaded. The conveying track 31 is driven by a motor and a roller, and sequentially conveys the core material pieces 11 to the first clamping jaw 41 and close to the magnetic assembly 33.

[0044] In the embodiment, the magnetic assembly 33 is composed of at least one magnetic column fixed by a connecting plate, as shown in the attached Figure 3 As shown in the middle, the magnetic column is preferably two, and of course can be one or other multiple, or a long strip-shaped magnetic structure or other shapes, which are not specifically limited here, as long as the magnetic function is met. The outer end of the connecting plate is connected with a magnetic air cylinder 32. The output shaft of the magnetic air cylinder 32 drives the magnetic assembly 33 to reciprocate along the conveying direction of the conveying track 31, so that one of the multiple core material pieces 11 arranged on the feeding table 3 closest to the magnetic assembly 33 is separated from the adjacent core material piece 11 by a certain gap to form the clamping space of the first clamping jaw 41. This is because the multiple core material pieces 11 stacked on the conveying track 31 have no gap between them, which is not convenient for the first clamping jaw 41 to clamp. When the conveying track 31 conveys the frontmost core material piece 11 to the first clamping jaw 41, there is no gap between the first core material piece 11 and the second core material piece 11, which is not convenient for the first clamping jaw 41 to clamp. At this time, the magnetic air cylinder 32 drives the magnetic assembly 33 to approach the first core material piece 11 through the connecting plate, so that the magnetic assembly 33 attracts the first core material piece 11. Then the magnetic air cylinder 32 retracts, so that the magnetic assembly 33 pulls the first core material piece 11 to move a certain distance to the front end (the direction of retraction of the magnetic air cylinder), so that there is a gap between the first core material piece 11 and the second core material piece 11, and the first clamping jaw 41 can extend into the gap to conveniently clamp the first core material piece 11. In this way, the first core material piece 11 is clamped one by one. In this scheme, the magnetic assembly 33 can be a conventional magnet or an electromagnet. If it is an electromagnet, only the magnetic field is turned on in the adsorption and slight movement state, so that the clamping process is more flexible. Moreover, the embodiment does not necessarily have a connecting plate structure, and the magnetic assembly 33 can be directly installed on the output shaft of the magnetic air cylinder 32. As long as the first core material piece 11 can be adsorbed and pulled apart to form a clamping gap for the first clamping jaw 41.

[0045] According to the welding process of this scheme, the iron core material 11 also needs to be transferred from the automatic feeding table 3 to the first transfer system 4 of the assembly and shaping station 6. The first transfer system 4 uses the first gripper 41 to pick up the iron core material 11 on the automatic feeding table 3 and transfers the iron core material 11 to the assembly and shaping station 6 through the first guide rail group 43. The first transfer system 4 achieves the purpose of moving the iron core material 11 to the assembly position on the assembly and shaping station 6, and then releases the first gripper 41 and returns to the initial gripping position to prepare for the next gripping. Regarding the first shifting system 4 in this solution, in the initial state, the first gripper 41 in the first shifting system 4 is located above the foremost iron core component 11. After the foremost iron core component 11 is slightly shifted by the magnetic attraction of the magnetic attraction component 33, the first gripper 41, driven by the first gripper cylinder 44, grips the iron core component 11 through the gripping gap. Under the action of the first guide rail group 43, it moves up and down and left and right relative to the automatic loading table 3, thereby gripping the iron core component 11 and moving it to the assembly and shaping station 6. Then, the first gripper 41 releases the iron core component 11, placing it at the assembly position of the assembly and shaping station 6. In this embodiment, as shown in the attached... Figure 3 In the first guide rail assembly 43, the first guide rail assembly 43 is fixed to the workbench 2 by the first bracket 42. The first guide rail assembly 43 includes a first transverse guide rail, a first longitudinal guide rail, and a first gripper cylinder 44 connected to the second guide rail by a first gripper cylinder fixing plate 45. The first gripper cylinder 44 drives the first gripper 41 to open and close. The first gripper cylinder fixing plate 45 is also equipped with the first gripper 41 and the execution structure for opening and closing the first gripper 41. The execution structure for opening and closing the first gripper 41 is a common pneumatic opening and closing clamp structure, which is not the core technology 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. Any tool that can achieve the opening and closing of the first gripper 41 is acceptable. This is a conventional existing technical means and is not limited or described in detail in this embodiment. In this solution, the first gripper 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. This drives the first gripper 41 to move laterally and longitudinally on the first guide rail group 43, realizing the actions of lowering and clamping, raising and moving left and right, and lowering and releasing. This moves the iron core material 11 from the automatic loading table 3 to the assembly and shaping station 6, and returns to the original position under the drive of the guide rail motor to perform the next clamping action. When the clamping is lowered, the first gripper cylinder 44 opens the first gripper 41 to grip the iron core material 11. Then the first gripper cylinder 44 clamps the iron core material 11 and holds it. Driven by the first guide rail group 43, it rises, moves horizontally, and falls sequentially until the iron core material 11 is in the correct position at the assembly and shaping station 6. Then the first gripper 41 is released to complete the gripping, moving, and releasing actions.

[0046] According to the welding process of the present scheme, the core material 11 moved to the splicing and shaping station 6 needs to be automatically spliced at the station. Specifically, the splicing and shaping station 6 is provided with a splicing assembly 7, which is composed of multiple shaping parts arranged around the core material 11 in space. Through the driving structure of each shaping part, the initially strip-shaped core material 11 is spliced into a circular shape 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. The splicing assembly 7 is provided with a shaping positioning shaft 71 in the middle, and the first shaping part 72, the second shaping part 73, and the third shaping part 74 are located outside the shaping positioning shaft 71. The shaping positioning shaft 71 is located on one side of the core material 11. The strip-shaped core material 11 will be wrapped and spliced into a circle with the shaping positioning shaft 71 as the center under the action of the splicing assembly 7. The spliced core material 11 is coaxial with the shaping positioning shaft 71, and the inner circle of the spliced core material 11 tightly adheres to the outer wall of the shaping positioning shaft 71.

[0047] Regarding the splicing and shaping action of the splicing assembly 7 in the present embodiment, the first shaping part 72 includes a first shaping push block 722 pushed in a first direction by a first shaping cylinder 721. Figure 4 As shown in the first shaping push block 722, the first shaping push block 722 includes at least one push block structure, preferably two, located at the middle position of the core material 11, which pushes the middle part of the core material 11 against the side wall of the shaping positioning shaft 71. Figure 4 The second shaping part 73 includes a second shaping push block 732 pushed in a first direction and a second direction by a second shaping cylinder A 731 and a second shaping cylinder B 733, respectively. After pushing the core material 11 in the first direction, the second shaping push block 732 pushes the core material 11 in the second direction again. Figure 4As shown in the figure, after the two second shaping air cylinders A 731 push the iron core material piece 11 in the first direction by a certain distance, the two second shaping air cylinders B 733 push the two sides of the iron core material piece 11 inward in the second direction, that is, the second swing arm 734 first pushes the iron core material piece in the first direction, and then pushes the material piece in the second direction, so that the two sides of the iron core material piece 11 first move in the first direction, and then relatively move in the second direction, as shown in the figure, the second direction is preferably perpendicular to the first direction, so that the outer part of the middle of the iron core material piece 11 is close to the side wall of the shaping positioning shaft 71; the third shaping part 74 includes two third shaping push blocks 742 pushed by two groups of third shaping air cylinders 741, the two third shaping push blocks 742 are used to push the two ends of the iron core material piece 11 to the side wall of the shaping positioning shaft 71, and splice the two free ends of the iron core material piece 11, and the two groups of third shaping air cylinders 741 push the two third shaping push blocks 742 in the fourth direction and the fifth direction respectively, and the included angle between the fourth direction and the fifth direction is between 30°-70°, preferably 40°, so that the two ends of the iron core material piece 11 can be spliced better, and the inner wall of the iron core material piece 11 can be completely abutted on the side wall of the shaping positioning shaft 71, so as to complete the splicing action and obtain the spliced iron core material piece.

[0048] Then, according to the welding process of the present scheme, under the action of the second displacement system 5, the spliced iron core material piece 11 is transferred from the splicing and shaping station 6 to the welding station 8, so that the welding station 8 can weld the iron core material piece 11; wherein the second displacement system 5 can also synchronously transfer the iron core material piece welded in the previous step from the welding station 8 to the unloading station. Specifically, the second displacement system 5 clamps the spliced iron core material piece 11 in the splicing and shaping station 6 by the first synchronous clamp 51 and transfers the spliced iron core material piece 11 to the welding station 8 through the second guide rail group 54; at the same time, the second displacement system 5 clamps the welded iron core material piece in the welding station 8 by the second synchronous clamp 52 and transfers the welded iron core material piece to the unloading station through the second guide rail group 54.

[0049] As a more detailed description of the present embodiment, as shown in the accompanying drawings Figure 6As shown, the second displacement system 5 further comprises a second guide rail set 54 fixed on the workbench 2 by a second support 53, which comprises a second transverse guide rail, a second longitudinal guide rail and a synchronous arm 56 fixed on the second longitudinal guide rail; the first synchronous jaw 51 and the second synchronous jaw 52 are arranged at two ends of the synchronous arm 56; as for the up-down and left-right movement of the second guide rail set 54 in the second displacement system 5, refer to the movement execution principle of the first guide rail set 43 in the first displacement system 4, which is consistent with the present principle and will not be described here. In summary, in combination with the motor driving mechanism, the second guide rail set 54 can realize the lifting and left-right movement of the second synchronous jaw 52 and the first synchronous jaw 51, and as shown in the accompanying drawings, the second guide rail set 54 is arranged on the workbench 2, and the first synchronous jaw 51 and the second synchronous jaw 52 are arranged at two ends of the synchronous arm 56 fixed on the second guide rail set 54. Figure 6 As shown, the synchronous arm 56 is provided with a first synchronous jaw cylinder for driving the first synchronous jaw 51 to open and close, and a second synchronous jaw cylinder 55 for driving the second synchronous jaw 52 to open and close; the synchronous arm 56 moves along the second transverse guide rail and the second longitudinal guide rail under the driving of the guide rail motor, and in turn drives the first synchronous jaw 51 and the second synchronous jaw 52 to move transversely and longitudinally on the second guide rail set 54. At the same time, the split and shaped core material 11 on the split and shaping station 6 is moved to the welding station 8, and the welded core material 11 is transferred to the unloading station.

[0050] As a more detailed description of the present embodiment, as shown in the accompanying drawings, Figures 7-8 As shown, the welding station 8 comprises 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 further 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 the pressing direction. The first synchronous jaw 51 places the split and shaped core material 11 clamped into a circle into the welding cylinder 81, and the welding station 8 further comprises a top plate cylinder 86 located on the lower part of the workbench 2 and directly below the welding cylinder 81, and the top end of the output shaft of the top plate cylinder 86 is provided with a top plate 85, and the core material 11 to be welded is located on the top plate 85, after being placed in position, the pressing cylinder cylinder 83 drives the pressing cylinder 82 to move downward to press the upper end surface of the core material 11, under the cooperation of the top plate 85 and the circumferential positioning of the welding cylinder 81, the core material 11 to be welded is spatially positioned in the welding cylinder 81, and then the welding process is carried out, and the top plate 85 is located at the bottom of the welding cylinder 81 for ejecting the welded stator core out of the welding cylinder 81; the second synchronous jaw 52 clamps the ejected and welded core material 11 and moves to the unloading station.

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

[0052] The embodiment also provides a novel automatic assembling and welding process for a stator core, which adopts the novel automatic assembling and welding machine for a stator core and comprises the following steps.

[0053] S1, feeding: a plurality of iron core workpieces (11) are placed on the automatic feeding table 3 in sequence according to the conveying direction of the conveying belt 31, and the plurality of iron core workpieces 11 are conveyed to the first clamping jaw 41 of the first displacement system 4 in sequence through the motor control conveying belt 31, and then the first iron core workpiece 11 is separated from the adjacent iron core workpiece 11 through the control of the magnetic attraction assembly 33 to obtain a clamping space;

[0054] S2, splicing and shaping: the first clamping jaw 41 clamps the iron core workpiece 11 in the clamping space obtained through S1, and the clamped iron core workpiece 11 is conveyed to the splicing and shaping station 6 through the control of the first displacement system 4, and then the strip-shaped iron core workpiece 11 is spliced into a circle through the control of the splicing assembly 7 to obtain a spliced workpiece;

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

[0056] S4, discharging: the second synchronous clamping jaw 52 of the second displacement system 5 automatically discharges the welded workpiece in step S3 from the discharging position of the workbench 2 to complete the welding process;

[0057] In step S4, the second synchronous clamping jaw 52 of the second displacement system 5 moves synchronously with the first synchronous clamping jaw 51, so that the spliced workpiece is conveyed to the welding station 8 and the welding station 8 is conveyed to the discharging position synchronously.

[0058] Finally, it should be noted that the terms "first" and "second", and the like, herein do not denote any order, quantity, combination or important / primary / secondary or the like, but are used to simply distinguish one element from another, and do not necessarily imply a relationship or order between those elements. Also, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0059] The various embodiments described in this specification are presented by way of example, and are not intended to limit the scope of the application. Each embodiment is presented in a way that emphasizes the differences between that embodiment and other embodiments. The same or similar elements are presented in different embodiments by the same or similar reference numbers. The embodiments disclosed herein are not mutually exclusive, and the various features of the embodiments can be combined in any way.

[0060] Those skilled in the art will further appreciate that the functionality of the various examples presented herein can be implemented in electronic hardware, computer software, or combinations of both. To clearly illustrate this interchangeability of hardware and software, various examples have been described herein in terms of components that perform their functionality in both hardware and software. The functionality presented herein, however, can be implemented in hardware, software, or a combination of both. The described features can be implemented in different examples by different combinations of hardware and software.

[0061] The steps of a method or algorithm described in connection with the embodiments disclosed herein can be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. A software module can reside in RAM, flash memory, ROM, electrically programmable ROM (EPROM or EEPROM), registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such that the processor can read information from, and write information to, the storage medium. In the alternative, the storage medium can be integral to the processor. The processor and the storage medium can reside in an ASIC.

[0062] The foregoing description of the exemplary embodiments allows a skilled person to implement or use the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Therefore, the application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A novel automatic assembling and welding machine for stator core, which is used for welding iron core blanks (11) into a stator core, wherein the iron core blanks (11) are in the form of strips, and the automatic assembling and welding machine is used for welding the iron core blanks end to end to obtain the stator core, and the automatic assembling and welding machine comprises a machine frame (1) and a workbench (2) located above the machine frame (1), wherein a splicing and shaping station (6) and a welding station (8) are arranged on the workbench (2), and the automatic assembling and welding machine is characterized in that, Further comprising an automatic feeding table (3) located on the workbench (2), a first displacement system (4) for transferring the iron core material (11) from the automatic feeding table (3) to the split shaping station (6), and a second displacement system (5) for transferring the split-shaped iron core material (11) from the split shaping station (6) to the welding station (8), wherein the second displacement system (5) can transfer the welded and shaped iron core from the welding station (8) to the unloading position; The first displacement system (4) clamps the iron core material (11) on the automatic feeding table (3) by the first clamping jaw (41) and transfers the iron core material (11) to the split shaping station (6) by the first guide rail group (43); The second displacement system (5) clamps the split-shaped iron core material (11) on the split shaping station (6) by the first synchronous clamping jaw (51) and transfers the split-shaped iron core material (11) to the welding station (8) by the second guide rail group (54); The second displacement system (5) clamps the split-shaped iron core material (11) on the split shaping station (6) by the first synchronous clamping jaw (51) and transfers the split-shaped iron core material (11) to the welding station (8) by the second guide rail group (54); The split shaping station (6) is provided with a split assembly (7), which is composed of a first shaping part (72), a second shaping part (73) and a third shaping part (74). The split assembly (7) is provided with a shaping positioning shaft (71) in the middle. 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 first shaping part (72), the second shaping part (73) and the third shaping part (74) are used to completely abut the inner wall of the strip-shaped iron core material (11) on the side wall of the shaping positioning shaft (71), so as to change the iron core material (11) from strip-shaped to circular. The second shaping part (73) includes a second shaping cylinder A (731), a second shaping cylinder B (733) and two second shaping push blocks (732) respectively pushed in the first direction and the second direction. After the two second shaping push blocks (732) push a certain distance in the first direction, they inwardly gather the two sides of the iron core material (11) in the second direction.

2. A new type of automatic assembling and welding machine for stator core according to claim 1, characterized in that, The automatic feeding table (3) includes a conveying track (31) driven by a motor and a roller and a magnetic attraction assembly (33) located at the unloading end of the conveying track (31). The magnetic attraction assembly (33) is composed of at least one magnetic attraction column fixed by a connecting plate. The outer end of the connecting plate is connected with a magnetic attraction cylinder (32). The output shaft of the magnetic attraction cylinder (32) drives the magnetic attraction assembly (33) to reciprocate along the conveying direction of the conveying track (31) through the connecting plate, so that the iron core material (11) closest to the magnetic attraction assembly (33) among the multiple iron core materials (11) arranged on the feeding table (3) is separated from the adjacent iron core material (11) by a certain gap, forming a clamping space of the first clamping jaw (41).

3. A new type of automatic assembling and welding machine for stator core according to claim 2, characterized in that, The first clamping jaw (41) is located at one side of the magnetic attraction assembly (33), the first guide rail set (43) is fixed on the workbench (2) through the first support (42), the first guide rail set (43) comprises a first transverse guide rail, a first longitudinal guide rail and a first clamping jaw air cylinder (44) connected to the second guide rail through a first clamping jaw air cylinder fixing plate (45), and the first clamping jaw air cylinder (44) drives the first clamping jaw (41) to open and close; the first clamping jaw air cylinder fixing plate (45) moves transversely and longitudinally along the first transverse guide rail and the first longitudinal guide rail under the driving of a guide rail motor, thereby driving the first clamping jaw (41) to move transversely and longitudinally on the first guide rail set (43).

4. A new type of automatic assembling and welding machine for stator core according to claim 1, characterized in that, The first shaping member (72) comprises a first shaping push block (722) pushed in a first direction by a first shaping air cylinder (721); and the third shaping member (74) comprises two third shaping push blocks (742) pushed by two groups of third shaping air cylinders (741).

5. A new type of automatic assembling and welding machine for stator core according to claim 4, characterized in that, The two groups of third shaping air cylinders (741) respectively push the two third shaping push blocks (742) in a fourth direction and a fifth direction, and the included angle between the fourth direction and the fifth direction is between 30° and 70°.

6. A new type of automatic assembling and welding machine for stator core according to claim 1, characterized in that, The second displacement system (5) further comprises a second guide rail set (54) fixed on the workbench (2) through a second support (53), the second guide rail set (54) comprises a second transverse guide rail, a second longitudinal guide rail and a synchronous arm (56) fixed on the second longitudinal guide rail; the first synchronous clamping jaw (51) and the second synchronous clamping jaw (52) are arranged at two ends of the synchronous arm (56); The synchronous arm (56) is provided with a first synchronous clamping jaw air cylinder for driving the first synchronous clamping jaw (51) to open and close, and a second synchronous clamping jaw air cylinder (55) for driving the second synchronous clamping jaw (52) to open and close; The synchronous arm (56) moves transversely and longitudinally along the second transverse guide rail and the second longitudinal guide rail under the driving of a guide rail motor, thereby driving the first synchronous clamping jaw (51) and the second synchronous clamping jaw (52) to move transversely and longitudinally on the second guide rail set (54).

7. A new type of automatic assembling and welding machine for stator core according to claim 1, characterized in that, The welding station (8) comprises a welding cylinder (81) located on the workbench (2) and a pressing cylinder (82) arranged on the upper portion of the welding cylinder (81) through a pressing cylinder fixing frame (84), and further comprises a pressing cylinder air cylinder (83) located on the upper portion of the pressing cylinder fixing frame (84) and used for driving the pressing cylinder (82) to move up and down in a pressing direction.

8. A new type of automatic assembling and welding machine for stator core according to claim 7, characterized in that, The welding station (8) further comprises a top plate air cylinder (86) located at the lower portion of the workbench (2) and directly below the welding cylinder (81), a top end of an output shaft of the top plate air cylinder (86) is provided with a top plate (85), the top plate (85) is located at the bottom of the welding cylinder (81), and the top plate (85) is used for ejecting the welded stator core out of the welding cylinder (81); The welding station (8) further comprises a welding assembly (9) located at the side of the welding cylinder (81), the welding assembly (9) comprising a welding support arm (93) and a welding torch (94), the welding torch (94) being connected to the workbench (2) through the welding support 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 support arm (93) being fixed on the welding transverse guide rail and moving longitudinally and transversely relative to the welding frame (91) under the driving of the welding first cylinder (92) and the welding second cylinder (95), so as to drive the welding torch (94) at the end of the welding support arm (93) to weld the shaped iron core workpiece (11).

9. A new type of automatic assembling and welding process of stator core, using the new type of automatic assembling and welding machine of stator core according to any one of claims 1-8, characterized in that, The welding process comprises the following steps: S1, feeding: a plurality of iron core workpieces (11) are placed on the automatic feeding table (3) in sequence according to the conveying direction of the conveying belt (31), and the plurality of iron core workpieces (11) are conveyed to the first clamping jaw (41) of the first displacement system (4) by the motor-controlled conveying belt (31), and then the first iron core workpiece (11) is separated from the adjacent iron core workpiece (11) by controlling the magnetic attraction assembly (33) to obtain a clamping space; S2, splicing and shaping: the first clamping jaw (41) clamps the iron core workpiece (11) obtained by S1, and the clamped iron core workpiece (11) is moved to the splicing and shaping station (6) by controlling the first displacement system (4), and then the splicing assembly (7) is controlled to splice the strip-shaped iron core workpiece (11) into a circle to obtain a spliced workpiece; S3, welding and fixing: the first synchronous clamping jaw (51) of the second displacement system (5) moves the spliced workpiece in step S2 to the welding station (8), and then the welding assembly (9) is controlled to weld the spliced workpiece at the splicing position to obtain a welded workpiece; S4, discharging: the second synchronous clamping jaw (52) of the second displacement system (5) automatically discharges the welded workpiece in step S3 from the discharging position of the workbench (2) to complete the welding process; In step S4, the second synchronous clamping jaw (52) of the second displacement system (5) moves synchronously with the first synchronous clamping jaw (51), so that the spliced workpiece is synchronously moved to the welding station (8) and the welding station (8) is synchronously moved to the discharging position.

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