Star point line welding equipment and welding method thereof

Abstract

The invention relates to the technical field of stator machining, and discloses star point line welding equipment and a welding method.The star point line welding equipment comprises a welding table, a welding frame, a fixing base, a first limiting assembly, a second limiting assembly and a welding gun, and the fixing base is arranged on the welding table; the fixing seat is provided with an assembling groove used for assembling a stator. The first limiting assembly and the second limiting assembly are both arranged on the welding table. The first limiting assembly is located on the outer side of the fixing base and used for abutting against a wire end on the stator from the outer side. The second limiting assembly extends to the center of the fixing base and is used for abutting against a wire end on the stator from the inner side. Moreover, the first limiting assembly is provided with a containing groove used for placing the star point line, and the containing groove is configured in a manner that when the first limiting assembly abuts against the wire head, one side of the star point line is in contact with the side wall of the containing groove, and the other side of the star point line is in contact with the wire head. The welding gun is arranged on the welding frame and used for welding star point lines. And by automatically aligning the star point line and the stator, the welding stability and the welding efficiency are improved.

Description

Technical Field

[0001] This invention relates to the field of stator processing technology, and in particular to a star-shaped welding device and its welding method. Background Technology

[0002] Flat-wire motors, due to their advantages such as high power density, high efficiency, and good heat dissipation, have seen increasingly widespread application in new energy vehicles, high-end industrial drives, and aerospace in recent years. As the core component of a flat-wire motor, the stator winding's manufacturing process directly affects the motor's performance, reliability, and production cost. In the stator winding manufacturing process, the welding of the star-point wire to each phase wire is a critical connection step, and its welding quality directly affects the electrical continuity, contact resistance, mechanical strength, and long-term operational reliability of the motor winding. Traditionally, the welding of the star-point wire in flat-wire motor stators is done manually or semi-automatically. After shaping at the stator winding ends, operators manually align and overlap the star-point wire with the multiple phase wires to be connected, and then weld them using methods such as argon arc welding, laser welding, or resistance welding.

[0003] However, manual welding relies entirely on visual judgment and manual adjustment, which requires high operational skills, lacks processing stability, and requires alignment for each weld, resulting in low welding efficiency.

[0004] Therefore, existing technologies still need to be improved and developed. Summary of the Invention

[0005] In view of the shortcomings of the prior art, the purpose of this invention is to provide a star-line welding device and welding method, which aims to solve the problems of the existing star-line welding process relying entirely on manual operation, resulting in unstable welding quality and low welding efficiency.

[0006] The technical solution of the present invention is as follows: A star-shaped line welding device, comprising: Welding table and welding frame; A fixing base is provided on the welding table; the fixing base is provided with an assembly slot for assembling the stator. Both the first limiting component and the second limiting component are disposed on the welding table; the first limiting component is located on the outside of the fixing base and is used to abut against the wire end on the stator from the outside; the second limiting component extends to the center of the fixing base and is used to abut against the wire end on the stator from the inside; and the first limiting component is provided with a receiving groove for placing the star wire, the receiving groove being configured such that when the first limiting component abuts against the wire end, one side of the star wire contacts the side wall of the receiving groove, and the other side contacts the wire end; A welding torch, mounted on the welding frame, is used to weld the star-shaped lines.

[0007] The star-line welding equipment, wherein the first limiting component includes: A driver is located on the welding station; A push rod is connected to the driver; the push rod is configured to move toward the assembly slot under the drive of the driver. A limiting member is provided on the push rod; along the moving direction of the push rod, the front end of the limiting member is provided with an abutting sidewall, the abutting sidewall is used to abut the wire end on the stator, and the receiving groove is formed on the abutting sidewall.

[0008] The star-line welding equipment mentioned above, wherein the fixed base is provided with a guide groove, the guide groove is located on the side of the assembly groove and communicates with the assembly groove; The limiting member includes a limiting block disposed opposite to the guide groove, and the limiting block is provided with the abutting sidewall and the receiving groove; The width of the limiting block is equal to the width of the guide groove.

[0009] The star-line welding equipment includes a slot on the fixed base, the slot being located on the side of the assembly groove and communicating with the assembly groove; the slot is used to insert a connecting plate, the connecting plate extending to the center of the assembly groove, for assembling the second limiting component; The slot and the guide groove are symmetrically arranged on both sides of the assembly groove.

[0010] The star-line welding equipment, wherein the connecting plate is provided with a central shaft hole and a sliding groove extending from the central shaft hole to the edge of the connecting plate; the second limiting component includes: A slide bar is slidably disposed within the slide groove for extending into the assembly groove to abut against the wire end; A drive disc is rotatably mounted on the central shaft hole and covers the top of the slide groove; the drive disc is provided with an arc-shaped radial cam groove; A pin is inserted into the radial cam groove and connected to the slide bar; A driving component is disposed on the welding table; the driving component is connected to the driving disk and is used to drive the driving disk to rotate.

[0011] The star-line welding equipment is provided with multiple sliding grooves, which are arranged radially and evenly around the central shaft hole. The radial cam grooves are provided in multiple ways, and the multiple radial cam grooves are arranged at intervals along the circumference of the drive disk; Multiple slide bars are provided, each disposed within a plurality of slide grooves; multiple pins are provided, each disposed within a plurality of radial cam grooves.

[0012] The star-line welding equipment, wherein the driving component includes: A pusher is provided on the welding station; The telescopic rod is connected to the pusher at one end and has a Hooke's hinge at the other end. The connecting rod has one end connected to the drive disk and the other end extending along the radius of the drive disk and having an oblong hole; the oblong hole is used to assemble the Hooke hinge.

[0013] In the aforementioned star-line welding equipment, the pusher is a servo motor or a cylinder; and / or, the driver is a servo motor or a cylinder.

[0014] The aforementioned star-line welding equipment, wherein the welding frame comprises: A base, on which a first horizontally extending guide rail is provided; A slide table is slidably mounted on the first guide rail; a vertically extending second guide rail is provided on the slide table; the welding torch is slidably mounted on the second guide rail.

[0015] This application also discloses a star-line welding method for use in any of the star-line welding devices described above, wherein the method includes: Collect the first signal indicating that the stator is assembled in place and the second signal indicating that the star-point line is assembled in place; Based on the first signal, the second limiting component is activated, and it abuts the connector from the inside of the stator; Based on the second signal, the first limiting component is activated, and it abuts the connector from the outside of the stator; After both the first and second limiting components have moved into place, the welding torch is activated to weld the star-shaped lines.

[0016] Compared with the prior art, the embodiments of the present invention have the following advantages: The star-dot welding equipment disclosed in this invention provides two stable assembly surfaces through independently set welding tables and welding frames. A fixing seat is installed on the welding table to assemble the stator into the assembly slot; simultaneously, a first limiting component and a second limiting component abut the wire end from the outside and inside respectively, keeping the wire end on the stator stable during welding. Furthermore, the receiving groove on the first limiting component can place and constrain the star-dot wire, keeping the star-dot wire in contact with the wire end, replacing manual alignment operations and improving alignment accuracy and efficiency. Finally, a welding torch is used to weld the connection between the star-dot wire and the wire end to complete the automated welding operation. This improves welding quality, increases welding efficiency, and saves labor costs. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the star-line welding equipment in this invention; Figure 2 This is an exploded view of the star-line welding equipment of the present invention; Figure 3 This is a schematic diagram of the limiting component in this invention; Figure 4 This is an exploded view of the structure of the second limiting component in this invention; Figure 5 This is a schematic diagram of the connecting plate in this invention; Figure 6 This is a flowchart of the star-dot line welding method in this invention; Figure 7 This is a schematic diagram of the terminal in this invention.

[0019] Among them, 10 is the welding table; 20 is the welding frame; 21 is the base; 211 is the first guide rail; 22 is the slide table; 221 is the second guide rail; 30 is the fixed seat; 31 is the assembly slot; 32 is the guide slot; 33 is the slot; 40 is the first limiting component; 41 is the receiving slot; 42 is the driver; 43 is the push rod; 44 is the limiting component; 441 is the abutting side wall; 442 is the limiting block; 50 is the second limiting component; 51 is the slide bar; 52 is the driving disc; 521 is the radial cam groove; 53 is the pin; 54 is the driving component; 541 is the pusher; 542 is the telescopic rod; 5421 is the Hooke hinge; 543 is the connecting rod; 5431 is the waist-shaped hole; 60 is the welding torch; 70 is the connecting plate; 71 is the central shaft hole; 72 is the slide groove. Detailed Implementation

[0020] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Due to manufacturing techniques and / or tolerances, variations in the shapes shown in the accompanying drawings may occur. Therefore, the examples described herein are not limited to the specific shapes shown in the drawings, but include changes in shape that may occur during manufacturing. The flowcharts shown in the accompanying drawings are merely illustrative and do not necessarily include all contents, operations, or steps, nor do they necessarily need to be performed in the order described. For example, some operations or steps may be broken down, combined, or partially merged, so the actual order of execution may change depending on the specific circumstances.

[0022] As used herein, the term “and / or” includes any one of the relevant items listed and any combination of any two or more items.

[0023] Although terms such as “first,” “second,” and “third” may be used herein to describe individual components, assemblies, regions, layers, or parts, these components, assemblies, regions, layers, or parts are not limited by these terms. Rather, these terms are used only to distinguish one component, assembly, region, layer, or part from another. Therefore, without departing from the teachings of the examples described herein, the first component, assembly, region, layer, or part referred to as the second component, assembly, region, layer, or part may also be referred to as the second component, assembly, region, layer, or part.

[0024] For ease of description, spatial relational terms such as “above,” “upper,” “below,” and “lower” are used herein to describe the relationship between one element and another, as shown in the accompanying drawings. Such spatial relational terms are intended to encompass not only the orientation depicted in the drawings but also different orientations of the device during use or operation. For example, if the device in the drawings is flipped, an element described as being “above” or “upper” relative to another element will subsequently be “below” or “lower” relative to that other element. Therefore, the term “above” includes both “above” and “below” orientations depending on the spatial orientation of the device. The device may also be positioned in other ways, and the spatial relational terms used herein will be interpreted accordingly.

[0025] The terminology used herein is for the purpose of describing various examples only and is not intended to limit this disclosure. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms “comprising,” “including,” and “having” enumerate the stated features, quantities, operations, components, elements, and / or combinations thereof, but do not exclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof.

[0026] See Figure 1In one embodiment of this invention application, a star-shaped line welding device is disclosed, which includes a welding table 10, a welding frame 20, a fixing seat 30, a first limiting component 40, a second limiting component 50, and a welding torch 60. The fixing seat 30 is disposed on the welding table 10; the welding torch 60 is disposed on the welding frame 20 and is used to weld the star-shaped line.

[0027] The star-line welding equipment disclosed in this embodiment provides two stable assembly surfaces through independently set welding table 10 and welding frame 20. A fixing seat 30 is installed on the welding table 10 to assemble the stator into the fixing seat 30; then the welding gun 60 is aligned with the stator to weld the wire ends.

[0028] like Figure 2 and Figure 3 As shown, the fixed base 30 is provided with an assembly groove 31 for assembling the stator; the first limiting component 40 and the second limiting component 50 are both provided on the welding table 10; the first limiting component 40 is located on the outside of the fixed base 30 and is used to abut against the wire end on the stator from the outside; the second limiting component 50 extends to the center of the fixed base 30 and is used to abut against the wire end on the stator from the inside; and the first limiting component 40 is provided with a receiving groove 41 for placing a star wire, the receiving groove 41 being configured such that when the first limiting component 40 abuts against the wire end, one side of the star wire contacts the side wall of the receiving groove 41, and the other side contacts the wire end.

[0029] In this embodiment, the first limiting component 40 and the second limiting component 50 respectively abut against the wire end from the outside and inside, keeping the wire end on the stator stable during the welding process. Moreover, the receiving groove 41 provided on the first limiting component 40 can place and constrain the star-shaped wire, keeping the star-shaped wire in contact with the wire end, replacing manual alignment operation, which can improve alignment accuracy and efficiency.

[0030] In summary, by using the welding torch 60 to weld the star-shaped lines and the connection points of the wire ends, the welding operation is automated, which improves welding quality, increases welding efficiency, and saves labor costs.

[0031] For example Figure 2 and Figure 3As shown, in another embodiment of this application, the first limiting component 40 includes a driver 42, a push rod 43, and a limiting member 44. The driver 42 is disposed on the welding table 10. The push rod 43 is connected to the driver 42. The push rod 43 is configured to move toward the assembly groove 31 under the drive of the driver 42. The limiting member 44 is disposed on the push rod 43. Along the moving direction of the push rod 43, the front end of the limiting member 44 is provided with an abutting sidewall 441, which is used to abut the wire end on the stator. The receiving groove 41 is formed on the abutting sidewall 441.

[0032] The driver 42 disclosed in this embodiment can be fixed to the welding table 10 by screwing, welding, or other means, and assembled on the outside of the fixing base 30. When the driver 42 is activated, it can push the push rod 43 to move towards the assembly groove 31, thereby driving the limiting member 44 to move synchronously towards the assembly groove 31 until it abuts the side wall 441 and extends into the assembly groove 31, abutting the wire end on the stator. This mechanical drive method is simple and stable, which is conducive to improving control accuracy. It can accurately control the position of the limiting member 44 to ensure abutting the wire end and maintain stability.

[0033] Specifically, the receiving groove 41 disclosed in this embodiment is used to place the star-shaped wire. The receiving groove 41 is opened on the abutting side wall 441. Therefore, when the abutting side wall 441 abuts against the wire end, the wire end is located on the side of the receiving groove 41. The star-shaped wire can contact multiple wire ends at the same time and remain stable, thereby improving the stability of the welding process, facilitating quick alignment, and improving welding efficiency.

[0034] Specifically, in this embodiment, the shape of the abutting sidewall 441 is the same as the shape of the sidewall of the star-dot line. The star-dot line contacts the wire end from the side. To accommodate multiple wire ends, the star-dot line generally has several locally bent contact sections, so the overall shape of the star-dot line is arc-shaped, with some parts protruding inward or outward. Setting the shape of the abutting sidewall 441 to be the same as the shape of the sidewall of the star-dot line allows the abutting sidewall 441 to contact multiple wire ends simultaneously, providing support for them and reducing unnecessary compression. This prevents the abutting sidewall 441 from pushing the wire end and changing its position, thus affecting the contact between the wire end and the star-dot line.

[0035] Specifically, in another embodiment of this invention, the star-shaped line is fully adapted to the receiving groove 41. The shape of the receiving groove 41 is exactly the same as the shape of the star-shaped line. Therefore, the star-shaped line can be stably placed in the receiving groove 41. During the movement, the risk of displacement and falling off can be reduced, which is beneficial to improving the alignment accuracy of the star-shaped line and the line end.

[0036] Specifically, in this embodiment, the front end of the limiting member 44 is stepped, with the lower part protruding to form the abutting sidewall 441, and the upper part forming the receiving groove 41. Furthermore, the sidewalls of the upper and lower steps have the same shape, both matching the shape of the sidewall of the star-shaped wire. Therefore, the limiting member 44 can simultaneously approach multiple wire ends without causing compression, transporting the star-shaped wire to the sides of multiple wire ends to achieve contact without mutual compression. This maintains in-situ welding, avoids altering the stator shape, and improves product manufacturing quality.

[0037] For example Figure 2 and Figure 3 As shown, in another embodiment of this application, a guide groove 32 is provided on the fixing base 30. The guide groove 32 is located on the side of the assembly groove 31 and communicates with the assembly groove 31. The limiting member 44 includes a limiting block 442 disposed opposite to the guide groove 32. The limiting block 442 is provided with the abutting sidewall 441 and the receiving groove 41. The width of the limiting block 442 is equal to the width of the guide groove 32.

[0038] In this embodiment, the limiting member 44 is supported only by the push rod 43. During movement, it may deflect or vibrate. A guide groove 32 is provided to constrain the limiting block 442. The sidewall of the guide groove 32 fits against the sidewall of the limiting block 442, ensuring that the limiting block 442 can only move towards or out of the assembly groove 31. This improves stability during movement and further enhances the stability of the star-shaped line as it moves towards the end of the line, preventing it from falling off.

[0039] like Figure 2 and Figure 5 As shown, in another embodiment of this application, the fixed base 30 is provided with a slot 33, the slot 33 is located on the side of the assembly groove 31 and communicates with the assembly groove 31; the slot 33 is used to insert a connecting plate 70, the connecting plate 70 extends to the center of the assembly groove 31, and is used to assemble the second limiting component 50; the slot 33 and the guide groove 32 are symmetrically arranged on both sides of the assembly groove 31.

[0040] The slot 33 disclosed in this embodiment provides a connection position, allowing the connecting plate 70 to be assembled onto the fixing base 30. Furthermore, the slot 33 and the guide groove 32 are symmetrically arranged. The connecting plate 70 is assembled within the slot 33, and the limiting member 44 moves within the guide groove 32. Therefore, the connecting plate 70 and the limiting member 44 remain relatively positioned on the same plane. Based on this, the second limiting component 50 assembled on the connecting plate 70, opposite to the limiting member 44, can provide support from the inside and outside of the wire end, respectively, to improve the stability of the wire end in place.

[0041] In other words, by setting the slot 33 and guide groove 32 opposite each other in this embodiment, the alignment accuracy of the first limiting component 40 and the second limiting component 50 can be improved. This ensures that the forces on both sides of the wire end are opposite and can cancel each other out, maintaining the stability of the wire end in its initial position, avoiding squeezing the wire end, and preventing the wire end from twisting or deforming. Furthermore, the improved stability of the wire end is more conducive to the stable adhesion of the star-shaped wire and the wire end, thus improving the welding quality.

[0042] like Figure 2 , Figure 4 and Figure 5 As shown, in another embodiment of this application, the connecting plate 70 is provided with a central shaft hole 71 and a sliding groove 72 extending from the central shaft hole 71 to the edge of the connecting plate 70; the second limiting component 50 includes a slide bar 51, a driving disk 52, a pin 53 and a driving component 54. The slide bar 51 is slidably disposed in the sliding groove 72 for extending into the assembly groove 31 to abut against the wire end; the driving disk 52 is rotatably disposed on the central shaft hole 71 and covers the top of the sliding groove 72; the driving disk 52 is provided with an arc-shaped radial cam groove 521; the pin 53 is inserted into the radial cam groove 521 and connected to the slide bar 51; the driving component 54 is disposed on the welding table 10; the driving component 54 is connected to the driving disk 52 for driving the driving disk 52 to rotate.

[0043] In this embodiment, the second limiting component 50 is powered by the driving component 54 to rotate the disc. In the groove 72 below the disc, the slide bar 51 is driven by the pin 53. During the rotation of the disc, the position of the pin 53 in the radial cam groove 521 changes. It is pushed by the side wall of the radial cam groove 521, causing the pin 53 to move along the radial direction of the disc, thereby driving the slide bar 51 to move out of the groove 72, that is, to extend into the assembly groove 31 and contact the wire end on the stator.

[0044] As can be seen, the second limiting component 50 disclosed in this embodiment can accurately control the position of the slider 51 through mechanical transmission, thereby improving control accuracy and stably abutting the connector. Unlike traditional telescopic structures, the slider 51 is moved by a disc, which occupies less space and facilitates reciprocating drive, thus simplifying the structure.

[0045] For example Figure 2 and Figure 5As shown, in another embodiment of this application, multiple slide grooves 72 are disclosed, and the multiple slide grooves 72 are arranged radially and uniformly with the central shaft hole 71 as the center; multiple radial cam grooves 521 are provided, and the multiple radial cam grooves 521 are arranged at intervals along the circumference of the drive disk 52; multiple slide bars 51 are provided, and are respectively provided in the multiple slide grooves 72; multiple pins 53 are provided, and are respectively provided in the multiple radial cam grooves 521.

[0046] In this embodiment, the star-shaped line disclosed simultaneously contacts multiple wire ends on the stator. Therefore, by simultaneously driving multiple pins 53 mounted on the drive disc 52, multiple sliders 51 are moved simultaneously to achieve the effect of simultaneously contacting multiple wire ends. It can be seen that the drive disc 52 can improve transmission efficiency and accurately control the movement of multiple sliders 51.

[0047] like Figure 4 As shown, in another embodiment of this application, the driving component 54 includes a pusher 541, a telescopic rod 542, and a connecting rod 543. The pusher 541 is disposed on the welding table 10. One end of the telescopic rod 542 is connected to the pusher 541, and the other end is provided with a Hooke hinge 5421. One end of the connecting rod 543 is connected to the driving disk 52, and the other end extends along the radial direction of the driving disk 52 and is provided with an oblong hole 5431. The oblong hole 5431 is used to assemble the Hooke hinge 5421.

[0048] The pusher 541 disclosed in this embodiment can drive the telescopic rod 542 to move in a straight line. The Hooke hinge 5421 is hinged to the connecting rod 543, transmitting the thrust to the connecting rod 543, causing the connecting rod 543 to drive the drive disk 52 to rotate together. Furthermore, the connecting rod 543 is provided with an oblong hole 5431 to prevent jamming. When the connecting rod 543 rotates, the Hooke hinge 5421 slides within the oblong hole 5431, maintaining the connection between the connecting rod 543 and the telescopic rod 542.

[0049] Specifically, as another embodiment of this application, the pusher 541 is disclosed as a servo motor or a cylinder; and the driver 42 can also be configured as a servo motor or a cylinder. Both servo motors and cylinders can provide linear thrust, which can maintain uniform thrust and further improve stability during the assembly process.

[0050] In this embodiment, the actuator 541 and the driver 42 can be the same type of servo motor or cylinder to simplify operation and save costs.

[0051] It should be noted that this embodiment is only an example of the type of pusher 541 or driver 42, but the scope of protection of the present invention is not limited to this. Other types of pushers 541 or drivers 42, as long as they can achieve the technical effects disclosed in this application, can be used as equivalent replacements for the concept of the present invention and should also be within the scope of protection of this application.

[0052] For example Figure 1 and Figure 2 As shown, in another embodiment of this application, the welding frame 20 includes a base 21 and a slide 22. The base 21 is provided with a horizontally extending first guide rail 211; the slide 22 is slidably disposed on the first guide rail 211; the slide 22 is provided with a vertically extending second guide rail 221; and the welding torch 60 is slidably disposed on the second guide rail 221.

[0053] In this embodiment, the welding frame 20 and the welding table 10 are arranged side by side. A horizontal first guide rail 211 is provided on the base 21, allowing the slide table 22 to slide freely and move the welding torch 60 above the assembly slot 31; or move it away from above the assembly slot 31 to facilitate the disassembly and assembly of the stator before or after welding. In this embodiment, the second guide rail 221 is arranged vertically to lower the welding torch 60 to the contact position between the star line and the wire end for welding. After welding is completed, the welding torch 60 is raised to facilitate removal.

[0054] Specifically, in this embodiment, both the slide table 22 and the welding torch 60 can be controlled by a motor or a cylinder, so that the position of the slide table 22 on the first guide rail 211 is precisely controllable, and the position of the welding torch 60 on the second guide rail 221 is precisely controllable, thereby improving the control precision of the equipment, which is conducive to improving the welding quality and carrying out automated welding operations in an orderly manner.

[0055] like Figure 6 As shown, as another embodiment of this application, a star-line welding method is disclosed for use in any of the star-line welding devices described above, wherein the method includes: Step S10: Collect the first signal indicating that the stator is assembled in place and the second signal indicating that the star point line is assembled in place; Step S20: Based on the first signal, activate the second limiting component 50 to abut the connector from the inside of the stator; Step S30: Based on the second signal, activate the first limiting component 40 to abut the terminal block from the outside of the stator; In step S40, after the first limiting component 40 and the second limiting component 50 have both moved into place, the welding torch 60 is started to weld the star-shaped lines.

[0056] The welding method disclosed in this embodiment can automatically perform welding operations after acquiring the first and second signals by pre-setting the welding position. This high degree of automation helps replace manual labor and completes high-precision, high-quality welding processes. Specifically, the first and second signals can be pressure signals or light signals acquired by sensing components such as pressure sensors, infrared sensors, and cameras.

[0057] In some embodiments, a terminal is provided, the internal structure of which can be as follows: Figure 7 As shown, the terminal includes a processor, memory, input / output interface, communication interface, display unit, and input device. The processor, memory, and input / output interface are connected via a system bus, and the communication interface, display unit, and input device are also connected to the system bus via the input / output interface. The processor provides computing and control capabilities. The memory includes non-volatile storage media and internal memory. The non-volatile storage media stores the operating system and computer programs. The internal memory provides the environment for the operation of the operating system and computer programs stored in the non-volatile storage media. The input / output interface is used for exchanging information between the processor and external devices. The communication interface is used for wired or wireless communication with external terminals; wireless communication can be achieved through Wi-Fi, mobile cellular networks, NFC (Near Field Communication), or other technologies.

[0058] When the computer program is executed by the processor, it implements the star-line welding method described above. The display unit of the terminal is used to form a visually visible image and can be a display screen, a projection device, or a virtual reality imaging device. The display screen can be a liquid crystal display screen or an e-ink display screen. The input device of the terminal can be a touch layer covering the display screen, or buttons, a trackball, or a touchpad set on the terminal shell, or an external keyboard, touchpad, or mouse, etc.

[0059] Those skilled in the art will understand that Figure 7 The structure shown is merely a block diagram of a portion of the structure related to the present invention and does not constitute a limitation on the terminal to which the present invention is applied. A specific terminal may include more or fewer components than those shown in the figure, or combine certain components, or have different component arrangements.

[0060] Those skilled in the art will understand that all or part of the processes in the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above methods.

[0061] The processors involved in the various embodiments provided by this invention may be general-purpose processors, central processing units, graphics processors, digital signal processors, programmable logic devices, quantum computing-based data processing logic devices, etc., and are not limited thereto.

[0062] It should be understood that various parts of this application can be implemented using hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented using software or firmware stored in memory and executed by a suitable instruction execution system. If implemented in hardware, as in another embodiment, it can be implemented using any one or a combination of the following techniques known in the art: discrete logic circuits having logic gates for implementing logical functions on data signals, application-specific integrated circuits (ASICs) having suitable combinational logic gates, programmable gate arrays (FPGAs), field-programmable gate arrays (FPGAs), etc.

[0063] Furthermore, the functional units in the various embodiments of this application can be integrated into a processing module, or each unit can exist physically separately, or two or more units can be integrated into a module. The integrated module can be implemented in hardware or as a software functional module. If the integrated module is implemented as a software functional module and sold or used as an independent product, it can also be stored in a computer-readable storage medium.

[0064] In summary, this application discloses a star-line welding device, comprising a welding table 10, a welding frame 20, a fixed base 30, a first limiting component 40, a second limiting component 50, and a welding torch 60. The fixed base 30 is disposed on the welding table 10; the fixed base 30 is provided with an assembly groove 31 for assembling a stator; the first limiting component 40 and the second limiting component 50 are both disposed on the welding table 10; the first limiting component 40 is located outside the fixed base 30 and is used to abut against the welding torch from the outside. The first limiting component 40 is provided with a receiving groove 41 for placing a star-shaped wire. The receiving groove 41 is configured such that when the first limiting component 40 abuts the wire end, one side of the star-shaped wire contacts the sidewall of the receiving groove 41, and the other side contacts the wire end. The welding torch 60 is mounted on the welding frame 20 and used to weld the star-shaped wire. By having the first limiting component 40 and the second limiting component 50 abut the wire end from the outside and inside respectively, the wire end on the stator remains stable during welding. The receiving groove 41 can place and constrain the star-shaped wire, keeping it in contact with the wire end. The welding torch 60 welds the connection between the star-shaped wire and the wire end, completing the automated welding operation. This improves welding quality, increases welding efficiency, and saves labor costs.

[0065] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0066] It should be noted that this invention uses star-line welding equipment and its welding method as an example to introduce the specific structure and working principle of the invention. However, the application of this invention is not limited to star-line welding equipment and its welding method, and can also be applied to the production and use of other similar workpieces.

[0067] It should be understood that the present invention is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of the invention is limited only by the appended claims.

[0068] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A star-dot line welding device, characterized in that, include: Welding table and welding frame; A fixing base is provided on the welding table; the fixing base is provided with an assembly slot for assembling the stator. Both the first limiting component and the second limiting component are disposed on the welding table; the first limiting component is located on the outside of the fixing base and is used to abut against the wire end on the stator from the outside; the second limiting component extends to the center of the fixing base and is used to abut against the wire end on the stator from the inside; and the first limiting component is provided with a receiving groove for placing a star wire, the receiving groove being configured such that when the first limiting component abuts against the wire end, one side of the star wire contacts the side wall of the receiving groove, and the other side contacts the wire end; A welding torch, mounted on the welding frame, is used to weld the star-shaped lines.

2. The star-line welding equipment according to claim 1, characterized in that, The first limiting component includes: A driver is located on the welding station; A push rod is connected to the driver; the push rod is configured to move toward the assembly slot under the drive of the driver. A limiting member is provided on the push rod; along the moving direction of the push rod, the front end of the limiting member is provided with an abutting sidewall, the abutting sidewall is used to abut the wire end on the stator, and the receiving groove is formed on the abutting sidewall.

3. The star-line welding equipment according to claim 2, characterized in that, The fixing base is provided with a guide groove, which is located on the side of the assembly groove and communicates with the assembly groove; The limiting member includes a limiting block disposed opposite to the guide groove, and the limiting block is provided with the abutting sidewall and the receiving groove; The width of the limiting block is equal to the width of the guide groove.

4. The star-line welding equipment according to claim 3, characterized in that, The mounting base is provided with a slot, which is located on the side of the assembly groove and communicates with the assembly groove; the slot is used to insert a connecting plate, which extends to the center of the assembly groove and is used to assemble the second limiting component; The slot and the guide groove are symmetrically arranged on both sides of the assembly groove.

5. The star-line welding equipment according to claim 4, characterized in that, The connecting plate is provided with a central shaft hole and a sliding groove extending from the central shaft hole to the edge of the connecting plate; the second limiting component includes: A slide bar is slidably disposed within the slide groove for extending into the assembly groove to abut against the wire end; A drive disc is rotatably mounted on the central shaft hole and covers the top of the slide groove; the drive disc is provided with an arc-shaped radial cam groove; A pin is inserted into the radial cam groove and connected to the slide bar; A driving component is disposed on the welding table; the driving component is connected to the driving disk and is used to drive the driving disk to rotate.

6. The star-line welding equipment according to claim 5, characterized in that, The slide groove is provided in multiple ways, and the multiple slide grooves are arranged radially and evenly with the central shaft hole as the center. The radial cam grooves are provided in multiple ways, and the multiple radial cam grooves are arranged at intervals along the circumference of the drive disk; Multiple slide bars are provided, each disposed within a plurality of slide grooves; multiple pins are provided, each disposed within a plurality of radial cam grooves.

7. The star-line welding equipment according to claim 5, characterized in that, The driving component includes: A pusher is provided on the welding station; The telescopic rod is connected to the pusher at one end and has a Hooke's hinge at the other end. The connecting rod has one end connected to the drive disk and the other end extending along the radius of the drive disk and having an oblong hole; the oblong hole is used to assemble the Hooke hinge.

8. The star-line welding equipment according to claim 7, characterized in that, The actuator is a servo motor or a cylinder; and / or, the driver is a servo motor or a cylinder.

9. The star-line welding equipment according to claim 1, characterized in that, The welding frame includes: A base, on which a first horizontally extending guide rail is provided; A slide table is slidably mounted on the first guide rail; a vertically extending second guide rail is provided on the slide table; the welding torch is slidably mounted on the second guide rail.

10. A method for star-line welding, used in the star-line welding equipment as described in any one of claims 1 to 9, characterized in that, include: Collect the first signal indicating that the stator is assembled in place and the second signal indicating that the star-point line is assembled in place; Based on the first signal, the second limiting component is activated, and it abuts the connector from the inside of the stator; Based on the second signal, the first limiting component is activated, and it abuts the connector from the outside of the stator; After both the first and second limiting components have moved into place, the welding torch is activated to weld the star-shaped lines.

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