Short circuit ring automatic assembly welding equipment and process of motor stator

Abstract

The application discloses a kind of short-circuit ring automatic assembly welding equipment and process of motor stator, including machine table, machine table is provided with for conveying motor stator feeding assembly component, assembly component for installing short-circuit ring, and welding assembly;Welding assembly includes third support platform, and shaping structure and welding module are sequentially arranged along the direction of movement of motor stator, and shaping structure includes pressing support, pressing seat is arranged on pressing support, and first lifting unit for driving pressing support to move up and down, pressing seat includes first pressing plate and second pressing plate, and the first pressing plate is slidably arranged on the pressing support, the second pressing plate is provided with extrusion groove for pressing short-circuit ring welding position, changes traditional discrete operation mode of relying on manual or semi-automatic equipment, eliminates cumbersome material handling and waiting time between processes, production rhythm is greatly shortened, and overall production efficiency is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of automatic motor assembly equipment technology, specifically to an automatic assembly and welding equipment and process for short-circuit rings of motor stators. Background Technology

[0002] In the field of motor manufacturing, the stator is a core component, and its manufacturing quality and efficiency directly affect the overall performance and mass production cost of the motor. Among them, the installation and welding of the short-circuit ring is a key process in the stator assembly of wound-rotor asynchronous motors or some special motors. This process aims to reliably connect the lead-out ends of the stator winding coils to the short-circuit ring to form a complete electrical circuit. The quality of this connection directly affects the electrical performance, operational reliability and lifespan of the motor.

[0003] Currently, the short-circuit ring installation and welding technology commonly used in the industry still heavily relies on manual labor or semi-automatic equipment. The main modes can be summarized as follows:

[0004] 1. Manual operation: The operator manually places the short-circuit ring at the end of the stator winding and performs welding with hand tools. This method requires a high level of skill and experience from the operator, has low production efficiency, and makes it difficult to guarantee the consistency of welding quality. It is also easily affected by factors such as operator fatigue and mood.

[0005] 2. Semi-automatic auxiliary operation: The stator is fixed with simple positioning fixtures or jigs and welded in conjunction with a semi-automatic welding machine. Although it improves the consistency of positioning and reduces some labor intensity compared to pure manual operation, core processes such as feeding the short-circuit ring, precise alignment, monitoring of the welding process, and post-weld inspection still require frequent manual intervention.

[0006] However, the above production model has the following limitations:

[0007] 1. Low production efficiency: The speed of manual operation is limited and the cycle time of the process is long, which makes it difficult to match the increasingly high cycle time requirements of the motor production line, becoming a bottleneck for capacity improvement;

[0008] 2. Poor quality consistency: The process parameters of manual welding (such as welding time, current, angle, wire feeding speed, etc.) are not accurately controlled, which easily leads to defects such as incomplete welding, over-welding, welding deviation, and uneven weld seam, resulting in fluctuations in product qualification rate and potential risks to the reliability of electrical connection. Summary of the Invention

[0009] To address the technical problems existing in the background art, the present invention proposes an automatic assembly and welding equipment and process for short-circuit rings of motor stators.

[0010] The technical solution adopted by the present invention to solve its technical problem is as follows:

[0011] An automatic assembly and welding equipment for short-circuit rings of motor stators includes a machine base, on which a feeding component, an assembly component, and a welding component are provided;

[0012] The feeding assembly includes a feeding conveyor line for conveying the motor stator, a first support platform connecting the feeding conveyor line and the assembly assembly, and a first transfer module for transferring the motor stator onto the assembly assembly.

[0013] The assembly includes a second support platform and an mounting structure for mounting a short-circuit ring. The mounting structure includes a forming module for forming the short-circuit ring, a conveying module for conveying the short-circuit ring, and an mounting module for mounting the short-circuit ring on the motor stator. The output end of the second support platform is connected to a motor stator flipping structure, which reverses the direction of the motor stator and pushes the motor stator to the welding assembly.

[0014] The welding assembly includes a third support platform, a shaping structure and a welding module arranged sequentially along the moving direction of the motor stator, and the shaping structure includes a clamping bracket, a clamping seat arranged on the clamping bracket, and a first lifting unit that drives the clamping bracket to move up and down.

[0015] The clamping seat includes a first clamping plate and a second clamping plate slidably disposed on the clamping bracket. The first clamping plate and the second clamping plate are arranged sequentially along the moving direction of the motor stator. The first clamping plate and the second clamping plate are provided with limiting blocks for clamping the side of the short-circuit ring. The first clamping plate is rotatably provided with a toggle block assembly for bending the short-circuit ring. The second clamping plate is provided with an extrusion groove for clamping the welding part of the short-circuit ring.

[0016] Preferably, the first support platform is provided with a position sensing structure for detecting the placement direction of the motor stator and a position adjusting structure for adjusting the placement direction of the motor stator along the motor stator conveying direction. The position sensing structure includes a first detection bracket and a detection sensor disposed on the first detection bracket, the detection sensor being positioned towards the motor stator. The position adjusting structure includes a clamping cylinder for clamping the motor stator and a rotary cylinder for driving the clamping cylinder to rotate, and the actuating end of the clamping cylinder is placed on the first support platform. Through the above improvements, the position sensing structure achieves automatic and accurate detection of the placement direction of the motor stator, and combined with the clamping cylinder and rotary cylinder in the position adjusting structure, it can automatically complete the direction identification and attitude correction of the stator. The entire process does not require manual intervention, effectively ensuring the consistency of the subsequent short-circuit ring installation direction of the motor stator and avoiding the situation where the short-circuit ring installation of the motor stator fails.

[0017] Preferably, the forming module includes a conveying section for conveying copper bars, a cutting section for cutting copper bars, and a bending section for bending copper bars. The conveying module includes a vibration unit mounted on the machine base and a conveying track mounted on the vibration unit. The mounting module includes a receiving section and a pressing section. The receiving section includes a receiving seat facing the conveying track, a receiving plate mounted on the receiving seat, a receiving block slidably mounted on the receiving plate, and a receiving unit for driving the receiving block to move up and down. The receiving block has a supporting protrusion for supporting the short-circuit ring. The receiving unit drives the receiving block to rise and transfers the short-circuit ring to the pressing section. The pressing section includes a transfer bracket mounted above the receiving block, a transfer plate mounted on the transfer bracket, and a moving module for driving the transfer bracket to move. The transfer plate has a transfer groove for inserting the short-circuit ring. A pressing unit is installed on the support frame. The actuating end of the pressing unit is connected to a pressing rod that passes through the transfer groove. The pressing unit drives the pressing rod to descend, so that the short-circuit ring is disengaged from the transfer groove and pressed onto the motor stator. Through the above improvements, the conveying part conveys the whole roll of copper strip, and the cutting part cuts the copper strip into a specified length. Then, the bending part bends the copper strip into a short-circuit ring of a specified shape. After bending, the short-circuit ring moves to the supporting protrusion via the conveying track. As the receiving block rises, the short-circuit ring on the supporting protrusion is placed into the transfer groove of the transfer plate. When the transfer plate moves above the motor stator, the pressing unit drives the pressing rod to descend, so that the short-circuit ring is disengaged from the transfer groove and pressed onto the motor stator. This realizes the automatic forming and installation of the short-circuit ring, which not only greatly improves the production cycle and efficiency, but also improves the overall manufacturing quality and reliability of the motor stator.

[0018] Preferably, the second support platform is further provided with a short-circuit ring installation detection structure and a defective product unloading structure. The short-circuit ring installation detection structure includes a second detection bracket and an installation position sensor disposed on the second detection bracket. The installation position sensor is disposed opposite to the short-circuit ring. The defective product unloading structure includes a gripping unit, a drive module for driving the gripping unit to move, and a discharge channel connected to the side of the second support platform. Through the above improvements, the installation position sensor can determine the assembly status of the short-circuit ring in real time and accurately, ensuring the installation quality of each product. Once a defective product is identified, the gripping unit in the defective product unloading structure can immediately and automatically grip it under the drive of the drive module and quickly remove it from the production line through the discharge channel, greatly improving the continuity of the production line, operating efficiency, and overall quality control level.

[0019] Preferably, the motor stator flipping structure includes a flipping bracket, a rotating unit disposed on the flipping bracket, a flipping plate disposed on the rotating unit's actuating end, and a pushing unit for pushing the motor stator onto the third support platform. The flipping plate is provided with several adsorption units for adsorbing the motor stator. Through the above improvements, the adsorption units can adsorb the motor stator. As the flipping bracket rotates, the welding area of ​​the short-circuit ring on the motor stator is positioned upwards, and the pushing unit pushes the motor stator to the designated position on the third support platform, significantly improving the production cycle and smoothness, and ensuring welding quality.

[0020] Preferably, the clamping bracket is provided with a driving block for driving the actuating block assembly to rotate. The driving block is inserted into the first clamping plate, which has a clamping groove. The actuating block assembly includes a first actuating block and a second actuating block hinged in the clamping groove. A first elastic element is provided between the first actuating block and the second actuating block to give the first actuating block and the second actuating block a tendency to move away from the welding end of the short-circuit ring. The driving block has a driving groove. When the driving block is inserted into the clamping groove, the first actuating block and the second actuating block are placed in the driving groove and move closer to each other to bend the welding end of the short-circuit ring. Through the above improvements, during the shaping process, the first clamping plate and the second clamping plate will shape the short-circuit ring twice. The first clamping plate descends, which can firmly clamp the side of the short-circuit ring to the limiting block. The actuating block assembly pushes the vertical part of the top of the short-circuit ring into the groove. The short-circuit ring is initially shaped by bending. Then, the motor stator moves to the bottom of the second clamping plate, and the extrusion groove further extrudes and shapes the welding position of the short-circuit ring, ensuring the welding end reaches the optimal welding posture and guaranteeing the consistency and reliability of the weld quality, thus significantly improving the welding quality. During the shaping process, the first and second actuating blocks are pre-tightened in the clamping groove by the first elastic element, and automatically open and reset under normal conditions. When the drive block is inserted, the drive groove on the drive block can guide the two actuating blocks to overcome the elastic force and move synchronously and smoothly toward the center, thereby accurately applying bending force to the welding end of the short-circuit ring and completing the consistent pre-bending. The entire process is purely mechanically linked, with a rapid response. It does not require additional complex electrical or pneumatic units, has a simple structure, and is extremely reliable. It not only simplifies the complexity of the equipment but also ensures that the bending angle and shape of each product are highly uniform.

[0021] Preferably, the machine base is further provided with a feeding assembly, which includes a fourth support platform, a second transfer module for transferring the motor stator on the third support platform to the fourth support platform, a flattening structure for flattening the short-circuit ring welding position, and a feeding channel connected to the output end of the fourth support platform. The flattening structure includes a flattening bracket, a flattening seat set on the flattening bracket, and a second lifting unit for driving the flattening bracket to move up and down. Through the above improvements, automatic feeding of workpieces is realized, and the installation quality is further improved through the flattening structure.

[0022] Preferably, the flattening seat includes a flattening plate, a positioning post and a flattening protrusion disposed on the flattening plate. The positioning post is inserted into the motor stator, and the flattening protrusion abuts against the welding area of ​​the short-circuit ring. Through the above improvements, the positioning post is first inserted into the stator, providing an absolutely accurate reference for the flattening action. The flattening protrusion acts on the welding area of ​​the short-circuit ring that has just been welded, which can effectively eliminate local warping, deformation or residual stress that may be caused by the welding heat process, making the weld end and the winding joint flatter and stronger.

[0023] Preferably, the first, second, third, and fourth support platforms are equipped with transfer components for moving the motor stator. Through the above improvements, the motor stator is accurately displaced on the first, second, third, and fourth support platforms, significantly improving production cycle time and overall efficiency.

[0024] An automated assembly and welding process for the short-circuit ring of a motor stator includes the following steps:

[0025] S1. Loading and Transfer: The loading conveyor line transports the motor stator to the first support platform. The motor stator moves along the first support platform to the loading position. The first transfer module picks up the motor stator from the first support platform and transfers it to the second support platform.

[0026] S2. Short-circuit ring assembly: The motor stator moves to the installation position of the second support platform, the forming module forms the copper strip into the specified shape, and the conveying module conveys the formed short-circuit ring to the installation module. The installation module assembles the short-circuit ring into the designated position of the motor stator.

[0027] S3. Pre-welding shaping: The motor stator flipping structure reverses the direction of the motor stator so that the open end of the short-circuit ring faces upward, and pushes the motor stator onto the third support platform. The motor stator moves to the shaping position, and the first lifting unit drives the pressing seat to move down. The actuating block group first bends the welding end of the short-circuit ring, and then presses the welding end through the extrusion groove.

[0028] S4. Welding and fixing: After bending and pressing, the motor stator enters the welding station, and the welding module welds the short-circuit ring.

[0029] S5. Unloading and Flattening: The second transfer module transfers the motor stator from the third support platform to the fourth support platform of the unloading component. The motor stator enters the flattening station, and the second lifting unit drives the flattening seat to move down to flatten and shape the short-circuit ring. After flattening and shaping, the motor stator is output through the unloading channel to complete the unloading.

[0030] Compared with the prior art, the present invention has the following advantages and beneficial effects: By setting up a feeding assembly, an assembly assembly, and a welding assembly on the machine base, the feeding conveyor line transports the motor stator to the first support platform. The motor stator moves along the first support platform to the feeding position. The first transfer module picks up the motor stator from the first support platform and transfers it to the second support platform. The motor stator moves to the installation position on the second support platform. The forming module forms the copper strip into a specified shape, and the conveying module transports the formed short-circuit ring to the installation module. The installation module assembles the short-circuit ring into the designated position on the motor stator. After the short-circuit ring is installed, the motor stator continues to move. The motor stator flipping structure rotates the motor stator. The short-circuit ring is oriented so that the open end (welding end) faces upward, and the motor stator is pushed onto the third support platform. The motor stator is then transferred to the third support platform and moved along the third support platform to the shaping position. The first lifting unit drives the pressing seat to move downward, pressing the short-circuit ring onto the motor stator. Subsequently, the motor stator enters the welding station, and the welding module welds the short-circuit ring. The motor stator, short-circuit ring forming and installation, short-circuit ring shaping, and short-circuit ring welding are all completed automatically, creating an automated production line. This changes the traditional discrete operation mode that relies on manual or semi-automatic equipment, eliminates cumbersome material handling and waiting time between processes, significantly shortens the production cycle, and greatly improves overall production efficiency. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0032] Figure 2 This is a schematic diagram of the feeding assembly of the present invention;

[0033] Figure 3 This is a schematic diagram of the structure of the first support platform embodiment of the present invention;

[0034] Figure 4 This is a schematic diagram of the structure of the first transfer module and the second transfer module of the present invention;

[0035] Figure 5 This is a schematic diagram of the overall structure of the assembly component of the present invention;

[0036] Figure 6 This is a schematic diagram of the molding module and conveying module of the present invention;

[0037] Figure 7 This is a schematic diagram of the molding module of the present invention;

[0038] Figure 8 This is a schematic diagram of the material receiving part and the material pressing part of the present invention;

[0039] Figure 9 This is a schematic diagram of the material receiving part of the present invention;

[0040] Figure 10 This is a schematic diagram of the pressing unit and pressing rod of the present invention;

[0041] Figure 11 This is a schematic diagram of the position sensing structure of the present invention;

[0042] Figure 12 This is a schematic diagram of the non-conforming product unloading structure of the present invention;

[0043] Figure 13 This is a schematic diagram of the motor stator flipping structure of the present invention;

[0044] Figure 14 This is a schematic diagram of the welding assembly of the present invention;

[0045] Figure 15 This is a schematic diagram of the shaping structure of the present invention;

[0046] Figure 16 This is an exploded view of the shaping structure of the present invention;

[0047] Figure 17 This is a schematic diagram of the structure of the actuating block assembly of the present invention;

[0048] Figure 18 This is a schematic diagram of the extrusion groove of the present invention;

[0049] Figure 19 This is a schematic diagram of the welding module of the present invention;

[0050] Figure 20 This is a schematic diagram of the feeding assembly of the present invention;

[0051] Figure 21 This is a schematic diagram of the flattening structure of the present invention;

[0052] Figure 22 This is a schematic diagram of the secondary positioning structure of the present invention;

[0053] Figure 23 This is a schematic diagram of the short-circuit ring on the motor stator before and after bending according to the present invention;

[0054] In the diagram: 1. Machine base; 2. Feeding assembly; 3. Assembly assembly; 4. Welding assembly; 5. Unloading assembly; 6. Transfer assembly; 101. Feeding conveyor line; 102. First supporting platform; 103. First transfer module; 104. First transfer module; 111. Position sensing structure; 112. Position adjustment structure; 121. First detection bracket; 122. Detection sensor; 123. Clamping cylinder; 124. Rotary cylinder; 201. Second supporting platform; 202. Second transfer module; 203. Mounting structure; 204. Short-circuit ring mounting detection structure; 205. Defective product unloading structure; 211. Forming module; 212. Conveying module; 213. Mounting module; 221. Conveying section; 222. Cutting section; 223. Bending section; 224. Vibration unit; 225. Conveying track; 226. Receiving section; 227. Pressing section; 231. Receiving seat; 232. Receiving plate; 233. Receiving block; 234. Receiving unit; 235. Supporting protrusion; 236. Transfer bracket; 237. Transfer plate; 238. Moving module; 239. Transfer trough; 241. Pressing unit; 242. Pressing rod; 251. Second detection bracket; 252. Installation position sensor; 253. Gripping unit; 254. Drive module; 255. Discharge channel; 301. Third supporting platform; 302. Third transfer module; 303. Shaping structure; 304. Welding module; 311. Pressing bracket; 312. Pressing seat; 313. First lifting section 321. Lowering unit; 322. First pressing plate; 323. Second pressing plate; 324. Limiting block; 325. Actuating block assembly; 326. Drive block; 331. Extrusion groove; 332. Pressing groove; 333. First actuating block; 334. Second actuating block; 335. Drive groove; 401. Fourth supporting platform; 402. Fourth transfer module; 403. Second transfer module; 404. Flattening structure; 405. Unloading channel; 411. Flattening bracket; 412. Flattening seat; 413. Second lifting unit; 421. Pressing plate; 422. Positioning column; 423. Flattening protrusion; 501. Motor stator flipping structure; 511. Flipping bracket; 512. Rotation unit; 513. Flipping plate; 51 4. Pushing unit; 515. Adsorption unit; 601. Conveying seat; 602. Pressing module; 603. Screw module; 604. Conveying block; 605. Pressing unit; 606. Conveying channel; 607. Bending seat; 608. Lifting plate; 609. Bending block; 610. Bending groove; 611. Extrusion fixing plate; 612. Cutting seat; 613. Cutting slice; 614. Second elastic element; 615. Lower pressing protrusion; 701. Feeding structure; 711. Feeding unit; 712. Feeding rod; 801. Detection hole; 802. Mounting sensor; 803. Mounting hole; 804. Abutment rod; 901. Telescopic cylinder; 902. Translation cylinder; 903. Transfer plate; 904. Transfer groove; 905. Clamping cylinder;906. Rotary cylinder; 907. Lifting cylinder; 908. Secondary positioning structure; 911. Positioning plate; 912. Moving cylinder; 913. Positioning groove; 921. Sliding rod; 922. Spring; 931. Height adjustment bracket; 932. Angle adjustment plate; 933. Welding head; 934. Angle adjustment groove; 941. Top material structure; 942. Feed block; 943. Lifting cylinder; 944. Feed groove; 945. Clamping cylinder. Detailed Implementation

[0055] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. 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.

[0056] It should be understood that although the terms upper, middle, lower, top, one end, etc., appear in this document to describe various elements, these elements are not limited by these terms. These terms are only used to distinguish the elements from each other for ease of understanding, and are not used to define any directional or sequential restrictions.

[0057] like Figure 1 As shown, an automatic assembly and welding equipment and process for short-circuit rings of motor stators includes a machine base 1, on which a feeding component 2, an assembly component 3, a welding component 4, an unloading component 5, and a transfer component 6 for driving the movement of the motor stator are provided. The transfer component 6 includes a first transfer module 103, a second transfer module 202, a third transfer module 302, and a fourth transfer module 402.

[0058] Specifically, the feeding assembly 2 includes a feeding conveyor line 101 for conveying the motor stator, a first support platform 102 for connecting the feeding conveyor line 101 and the assembly assembly 3, a first transfer module 103 for driving the motor stator to move along the first support platform 102, and a first transfer module 104 for transferring the motor stator to the assembly assembly 3.

[0059] Furthermore, the assembly component 3 includes a second support platform 201, a second transfer module 202 that drives the motor stator to move along the second support platform 201, and an installation structure 203 for mounting the short-circuit ring. The installation structure 203 includes a forming module 211 for forming the short-circuit ring, a conveying module 212 for conveying the short-circuit ring, and an installation module 213 for mounting the short-circuit ring on the motor stator. The output end of the second support platform 201 is connected to a motor stator flipping structure 501. The motor stator flipping structure 501 reverses the direction of the motor stator and pushes the motor stator to the welding assembly 4, so that the welding end of the motor stator enters the welding assembly 4 with the welding end facing upward.

[0060] The welding assembly 4 includes a third support platform 301, a third transfer module 302 that drives the stator of the motor to move along the third support platform 301, and a shaping structure 303 and a welding module 304 arranged sequentially along the moving direction. The shaping structure 303 includes a clamping bracket 311, a clamping seat 312 arranged on the clamping bracket 311, and a first lifting unit 313 that drives the clamping bracket 311 to move up and down. The clamping seat 312 includes a first clamping plate 321 and a second clamping plate 322 that are slidably arranged on the clamping bracket 311. The first clamping plate 321 and the second clamping plate 322 are arranged sequentially along the moving direction of the motor stator. The first clamping plate 321 and the second clamping plate 322 are provided with a limiting block 323 for clamping the side of the short-circuit ring. The first clamping plate 321 is rotatably provided with a toggle block group 324 for bending the short-circuit ring. The second clamping plate 322 is provided with a pressing groove 326 for clamping the welding part of the short-circuit ring.

[0061] The unloading assembly 5 includes a fourth support platform 401, a fourth transfer module 402 for moving the stator of the drive motor along the fourth support platform 401, a second transfer module 403 for transferring the stator of the motor on the third support platform 301 to the fourth support platform 401, a flattening structure 404 for flattening the short-circuit ring welding position, and an unloading channel 405 connected to the output end of the fourth support platform 401. The flattening structure 404 includes a flattening bracket 411, a flattening seat 412 disposed on the flattening bracket 411, and a second lifting unit 413 for driving the flattening bracket 411 to move up and down.

[0062] During the entire motor stator assembly and welding process, firstly, the feeding conveyor 101 transports the motor stator to the first support platform 102. The first transfer module 103 drives the motor stator to move along the first support platform 102 to the feeding position. The first transfer module 104 picks up the motor stator from the first support platform 102 and transfers it to the second support platform 201. The second transfer module 202 moves the motor stator to the installation position on the second support platform 201. The forming module 211 forms the copper strip into the specified shape, and the conveying module 212 transports the formed short-circuit ring to the installation module 213. The installation module 213 assembles the short-circuit ring into the designated position on the motor stator. The second transfer module 202 continues to drive the motor stator with the assembled short-circuit ring to move, transferring it to the third support platform 301. The third transfer module 302 drives the motor stator into the shaping position, and the first lifting unit drives the pressing seat 312 to move down, pressing the short-circuit ring. The motor stator is attached to the third transfer module 302, which drives the motor stator into the welding station. The welding module 304 welds the short-circuit ring. The second transfer module 403 transfers the motor stator from the third support platform 301 to the fourth support platform 401 of the unloading assembly 5. The fourth transfer module 402 drives the motor stator into the flattening station. The second lifting unit 413 drives the flattening seat 412 to move down and flatten and shape the welding position of the short-circuit ring. The fourth transfer module 402 continues to drive the motor stator to move, so that it is output through the unloading channel 405 to complete the unloading. The entire process of motor stator, short-circuit ring forming and installation, short-circuit ring shaping, short-circuit ring welding, short-circuit ring flattening, and motor stator unloading is completed automatically, building an automated production line. This changes the traditional discrete operation mode that relies on manual or semi-automatic equipment, eliminates the tedious material handling and waiting time between processes, greatly shortens the production cycle, and significantly improves the overall production efficiency.

[0063] The first transfer module 103, the second transfer module 202, the third transfer module 302, and the fourth transfer module 402 include a transfer plate 903, a telescopic cylinder 901 for driving the transfer plate 903 to extend and retract, and a translation cylinder 902 for driving the transfer plate 903 to move horizontally. The transfer plate 903 is provided with a plurality of transfer slots 904 for inserting the motor stator. The telescopic cylinder 901 and the translation cylinder 902 work together to realize the transfer of the motor stator.

[0064] like Figure 4 As shown, the first transfer module 104 and the second transfer module 403 include a clamping cylinder 905 for clamping the motor stator, a rotary cylinder 906 for driving the clamping cylinder 905 to rotate, and a lifting cylinder 907 for driving the clamping cylinder 905 to move up and down. The clamping cylinder 905, the rotary cylinder 906, and the lifting cylinder 907 work together to realize the transfer of the motor stator.

[0065] Preferably, a secondary positioning structure 908 is provided at the inspection position, welding position and assembly position of the motor stator. The secondary positioning structure 908 includes a positioning plate 911 and a moving cylinder 912 for driving the positioning plate 911 to move. The positioning plate 911 is provided with a positioning groove 913 that is opposite to the transfer groove 904 and the positioning groove 913 is attached to the outer periphery of the motor stator to ensure the processing quality of the motor stator.

[0066] As a preferred embodiment, the feeding component 2, assembly component 3, welding component 4, and unloading component 5 are arranged in a rectangular pattern, which greatly saves the equipment floor space, simplifies the material flow path, makes the connection between each process more direct and smooth, minimizes the transfer distance of workpieces between each workstation, effectively reduces waiting and idle time, and significantly improves production cycle time and overall efficiency.

[0067] like Figure 1 , Figure 2 , Figure 3 As shown, as a further explanation of the specific implementation of the feeding component 2, the first support platform 102 is provided with a position sensing structure 111 for detecting the placement direction of the motor stator and a position adjusting structure 112 for adjusting the placement direction of the motor stator. The position sensing structure 111 includes a first detection bracket 121 and a detection sensor 122 disposed on the first detection bracket 121. The detection sensor 122 is disposed facing the motor stator. The position adjusting structure 112 includes a clamping cylinder 123 for clamping the motor stator and a rotary cylinder 124 for driving the clamping cylinder 123 to rotate. The actuating end of the clamping cylinder 123 is placed on the first support platform 102.

[0068] During the transport of the motor stator on the first support platform 102, the position sensing structure 111 first realizes the automatic and accurate detection of the placement direction of the motor stator. Then, combined with the clamping cylinder 123 and rotating cylinder 124 in the position adjustment structure 112, the direction recognition and attitude correction of the stator can be completed automatically. The whole process does not require manual intervention, which effectively ensures the consistency of the subsequent short-circuit ring installation direction of the motor stator and avoids the situation of failure to install the short-circuit ring of the motor stator.

[0069] In addition, the height of the input end of the first support platform 102 is higher than the output end of the feeding conveyor line 101. The bottom of the input end of the first support platform 102 is provided with a top material structure 941. The top material structure 941 includes a feeding block 942 connected to the output end of the feeding conveyor line 101, and a lifting cylinder 943 set on the feeding block 942. The feeding block 942 is provided with a feeding groove 944 for inserting the motor stator. When the motor stator enters the feeding groove 944, the actuating end of the lifting cylinder 943 will rise and push the motor stator onto the first support platform 102, so as to realize the one-to-one conveying of the motor stator and control the feeding efficiency.

[0070] Meanwhile, a clamping cylinder 945 is installed above the input end of the first support platform 102 to clamp the motor stator, so as to ensure the stability of the motor stator feeding.

[0071] like Figure 1 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 As shown, a further explanation of the specific structure of assembly component 3 is provided. The forming module 211 includes a conveying section 221 for conveying copper strips, a cutting section 222 for cutting copper strips, and a bending section 223 for bending copper strips. The conveying module 212 includes a vibration unit 224 mounted on the machine base 1 and a conveying track 225 mounted on the vibration unit 224. The mounting module 213 includes a receiving section 226 and a pressing section 227. The receiving section 226 includes a receiving seat 231 facing the conveying track 225, a receiving plate 232 mounted on the receiving seat 231, a receiving block 233 slidably mounted on the receiving plate 232, and a receiving unit 234 driving the receiving block 233 to move up and down. The receiving block 233... A supporting protrusion 235 is formed to support the short-circuit ring. The receiving unit 234 drives the receiving block 233 to rise and transfer the short-circuit ring to the pressing part 227. The pressing part 227 includes a transfer bracket 236 set above the receiving block 233, a transfer plate 237 set on the transfer bracket 236, and a moving module 238 that drives the transfer bracket 236 to move. The transfer plate 237 is formed with a transfer groove 239 for the short-circuit ring to be placed. A pressing unit 241 is set on the transfer bracket 236. The actuating end of the pressing unit 241 is connected to a pressing rod 242 that passes through the transfer groove 239. The pressing unit 241 drives the pressing rod 242 to descend so that the short-circuit ring is disengaged from the transfer groove 239 and pressed onto the motor stator.

[0072] During the entire short-circuit ring forming and installation process, the conveying unit 221 first conveys the entire roll of copper strip and cuts it into a specified length by the cutting unit 222. Then, the bending unit 223 bends the copper strip into a short-circuit ring of a specified shape. After bending, the short-circuit ring moves to the supporting protrusion 235 via the conveying track 225. As the receiving block 233 rises, the short-circuit ring on the supporting protrusion 235 is placed into the transfer groove 239 of the transfer plate 237. When the transfer plate 237 moves above the motor stator, the pressing unit 241 drives the pressing rod 242 to descend, so that the short-circuit ring is removed from the transfer groove 239 and pressed onto the motor stator. This realizes the automatic forming and installation of the short-circuit ring, which not only greatly improves the production cycle and efficiency, but also improves the overall manufacturing quality and reliability of the motor stator.

[0073] Specifically, the conveying unit 221 includes a conveying seat 601, a pressing module 602 slidably disposed on the conveying seat 601, and a lead screw module 603 for driving the pressing module 602 to move. The pressing module 602 includes a conveying block 604 and a pressing unit 605 disposed on the conveying block 604. The conveying block 604 forms a conveying channel 606 for inserting copper bars. The actuating end of the pressing unit 605 abuts against the copper bar to drive the copper bar to move. During the copper bar feeding process, the copper bar is inserted into the conveying channel 606 and pressed by the pressing unit 605. As the conveying block 604 moves, the quantitative conveying of the copper bar is achieved.

[0074] The clamping unit 605 is mounted on the lead screw module 603. The lead screw module 603 rotates to drive the clamping unit 605 to move.

[0075] The bending section 223 includes a bending seat 607 for supporting the copper strip, a lifting plate 608 that is raised and lowered above the bending seat 607, and a bending block 609 disposed on the lifting plate 608. The bending block 609 has a U-shaped bending groove 610. After the copper strip is cut, the bending block 609 will descend and squeeze the copper sheet on the bending seat 607. Under the action of the bending groove 610, the copper sheet will be bent into a U-shaped short-circuit ring, realizing the rapid bending and forming of the copper sheet.

[0076] Furthermore, the cutting section 222 includes a cutting seat 612 and a cutting slice 613 slidably disposed on the cutting seat 612. A second elastic element 614 is disposed on the cutting seat 612. The second elastic element 614 abuts against the cutting slice 613 so that the cutting slice 613 always has a tendency to move away from the copper strip. The lifting plate 608 descends and forces the cutting slice 613 to descend and cut the copper strip, forming a copper sheet of a fixed length. When the copper sheet extends out of the conveying channel 606, the copper sheet will move to the bending seat 607. The bending seat 607 descends to complete the bending and simultaneously forces the cutting slice 613 to overcome the elastic force and cut the copper strip. After the cutting is completed, the second elastic element 614 causes the cutting slice 613 to automatically reset.

[0077] Among them, the lifting plate 608 forms a pressing protrusion 615, which presses down on the cutting slice 613 to cut the copper strip.

[0078] Preferably, a pressing and fixing plate 611 is inserted into the bending seat 607. When the bending seat 607 descends, the pressing and fixing plate 611 abuts against the top of the copper strip, firmly constraining it on the worktable before bending and forming. This effectively eliminates the warping, springback or displacement that may occur when the copper strip is bent under force, ensuring the accuracy and controllability of bending deformation, thereby greatly improving the dimensional consistency and shape accuracy of the U-shaped short-circuit ring.

[0079] In addition, the conveying track 225 is set on both sides of the bending seat 607, and the machine base 1 is equipped with a material feeding structure 701. The material feeding structure 701 includes a material feeding unit 711 and a material feeding rod 712 set on the material feeding unit 711. The material feeding unit 711 drives the material feeding rod 712 to slide horizontally and moves the short-circuit ring onto the conveying track 225, realizing the efficient and reliable transfer of the short-circuit ring from the forming station to the conveying track 225. The material feeding unit 711 drives the material feeding rod 712 to slide horizontally, and uses a short stroke to directly and smoothly push the formed short-circuit ring from the outlets on both sides of the bending seat 607 onto the conveying track 225.

[0080] Preferably, the receiving base 231 has a detection hole 801 with a connecting sliding groove, and an installation sensor 802 is inserted in the detection hole 801 to achieve accurate monitoring of the short-circuit ring's position. Only when the installation sensor 802 detects the short-circuit ring will it send an upward signal to the lifting unit.

[0081] Preferably, the transfer groove 239 is interference-fitted with the short-circuit ring, so that the short-circuit ring can still be stably maintained in the preset position of the transfer groove 239 when moving at high speed or changing its posture, thus avoiding tilting, slippage or even falling off due to inertia or vibration.

[0082] like Figure 10 As shown, in some other embodiments, mounting holes 803 communicating with the transfer groove 239 are provided on both sides of the transfer plate 237, and abutment rods 804 for abutting the short-circuit ring are provided in the mounting holes 803. The abutment rods 804 can apply a clamping force to the short-circuit ring in the transfer groove 239 from the side, effectively eliminating the fit gap between the transfer groove 239 and the short-circuit ring, and preventing the short-circuit ring from shaking or deflecting due to inertia when the transfer bracket 236 moves quickly or stops.

[0083] like Figure 1 , Figure 11 , Figure 12As shown, the second support platform 201 is also equipped with a short-circuit ring installation detection structure 204 and a defective product unloading structure 205. The short-circuit ring installation detection structure 204 and the defective product unloading structure 205 are located at the rear of the installation module 213. The short-circuit ring installation detection structure 204 includes a second detection bracket 251 and an installation position sensor 252 mounted on the second detection bracket 251. The installation position sensor 252 is positioned opposite to the short-circuit ring. The defective product unloading structure 205 includes a gripping unit 253 and a drive gripper. The drive module 254 that moves the material unit 253, and the discharge channel 255 that connects to the side of the second support platform 201, use the installation position sensor 252 to determine the assembly status of the short-circuit ring in real time and accurately, ensuring the installation quality of each product. Once a defective product is identified, the gripping unit 253 in the non-conforming product unloading structure 205 can immediately and automatically grab it under the drive of the drive module 254, and quickly remove it from the production line through the discharge channel 255, which greatly improves the continuity of the production line, operating efficiency and overall quality control level.

[0084] like Figure 1 , Figure 13 As shown, to further explain the connection between the second support platform 201 and the third support platform 301, when the short-circuit ring is installed on the motor stator, the open end of the short-circuit ring faces upwards. Therefore, the motor stator needs to be flipped before welding so that the open end of the short-circuit ring faces upwards. The motor stator flipping structure 501 includes a flipping bracket 511, a rotating unit 512 disposed on the flipping bracket 511, a flipping plate 513 disposed on the moving end of the rotating unit 512, and a pushing unit 514 for pushing the motor stator onto the third support platform 301. The flipping plate 513 is provided with several adsorption units 515 for adsorbing the motor stator. The adsorption units 515 can adsorb the motor stator. As the flipping bracket 511 rotates, the welding area of ​​the short-circuit ring on the motor stator faces upwards, and the pushing unit 514 pushes the motor stator to the designated position on the third support platform 301, which greatly improves the production cycle and smoothness, and ensures the welding quality.

[0085] Preferably, the adsorption unit 515 is a magnet, which uses the magnet's adsorption force on the motor stator (iron core) to achieve the gripping and flipping of the motor stator.

[0086] like Figure 1 , Figure 14 , Figure 15 , Figure 16 , Figure 17 , Figure 18 , Figure 19 , Figure 23As shown, a further explanation of the specific structure of the welding assembly 4 is provided: the driving block 325 on the clamping bracket 311 drives the rotating actuating block assembly 324 to rotate. The driving block 325 is inserted on the first clamping plate 321, which forces the actuating block assembly 324 to rotate relative to each other and bend the short-circuit ring.

[0087] During the shaping process, the first clamping plate 321 and the second clamping plate 322 will shape the short-circuit ring twice. The first clamping plate 321 descends, and the limiting block 323 can firmly press the side of the short-circuit ring. The actuating block group 324 bends the vertical part of the top of the short-circuit ring to achieve the initial shaping. Then the motor stator moves to the bottom of the second clamping plate 322, and the extrusion groove 326 extrudes and shapes the welding position of the bent short-circuit ring again, so that the welding end reaches the optimal welding posture, ensuring the consistency and reliability of the weld quality, and greatly improving the welding quality.

[0088] Specifically, the first pressing plate 321 has a pressing groove 331. The actuating block assembly 324 includes a first actuating block 332 and a second actuating block 333 hinged in the pressing groove 331. A first elastic element 334 is provided between the first actuating block 332 and the second actuating block 333 to give the first actuating block 332 and the second actuating block 333 a tendency to move away from the short-circuit ring welding end. The driving block 325 has a driving groove 335. When the driving block 325 is inserted into the pressing groove 331, the first actuating block 332 and the second actuating block 333 are placed in the driving groove 335 and move closer together to bend the short-circuit ring. At the welding end, the first actuating block 332 and the second actuating block 333 are pre-tightened in the clamping groove 331 by the first elastic element 334. Under normal conditions, they automatically open and reset. When the driving block 325 is inserted, the driving groove 335 on the driving block 325 can guide the two actuating blocks to overcome the elastic force and move towards the center synchronously and smoothly, thereby accurately applying bending force to the welding end of the short-circuit ring and completing consistent pre-bending. The whole process is purely mechanical linkage, with rapid response. It does not require additional complex electrical control or pneumatic units, has a simple structure and extremely high reliability. It not only simplifies the complexity of the equipment, but also ensures that the bending angle and shape of each product are highly uniform.

[0089] The first pressing plate 321 and the second pressing plate 322 are provided with sliding rods 921, which are slidably mounted on the pressing bracket 311. Springs 922 are provided on the first pressing plate 321 and the second pressing plate 322, and the springs 922 abut against the pressing bracket 311, so that the first pressing plate 321 and the second pressing plate 322 always have a downward movement tendency to ensure the reliability of pressing the short-circuit ring.

[0090] In addition, the welding module 304 includes a height adjustment bracket 931, an angle adjustment plate 932 disposed on the height adjustment bracket 931, and a welding head 933 disposed on the angle adjustment plate 932. An angle adjustment groove 934 is formed on the angle adjustment plate 932, thereby realizing the rapid adjustment of the angle of the welding head 933.

[0091] Preferably, the first pressing plate 321 and the second pressing plate 322 are provided with positioning posts 422 at their centers. The positioning posts 422 are inserted into the motor stator to ensure stability during the shaping process.

[0092] like Figure 1 , Figure 21 , Figure 22 As shown, as a further explanation of the embodiment of the flattening seat 412, the flattening seat 412 includes a flattening plate 421, a positioning post 422 and a flattening protrusion 423 disposed on the flattening plate 421. The positioning post 422 is inserted into the stator of the motor, and the flattening protrusion 423 abuts against the welding area of ​​the short-circuit ring. The positioning post 422 is first inserted into the stator to provide an absolutely accurate reference for the flattening action. The flattening protrusion 423 acts on the welding area of ​​the short-circuit ring that has just been welded, which can effectively eliminate local warping, deformation or residual stress that may be generated due to the welding heat process, making the weld end and the winding joint more flat and firm.

[0093] The pressing plate 421 is also provided with a sliding rod 921, which is inserted into the pressing bracket 411 to achieve stability during the up-and-down sliding process of the pressing plate 421. The pressing plate 421 is also provided with a spring 922, which abuts against the pressing bracket 411 so that the pressing plate 421 always has a downward movement tendency.

[0094] The automatic assembly and welding process for the short-circuit ring of the motor stator includes the following steps:

[0095] S1. Loading and Transfer: The loading conveyor 101 transports the motor stator to the first support platform 102. The first transfer module 103 drives the motor stator to move along the first support platform 102 to the loading position. The first transfer module 104 picks up the motor stator from the first support platform 102 and transfers it to the second support platform 201.

[0096] S2. Short-circuit ring assembly: The second transfer module 202 moves the motor stator to the installation position of the second support platform 201. Copper bars are continuously fed in by the conveying unit 221, and the cutting unit 222 cuts the copper bars to a set length. The bending unit 223 punches and bends the straight copper bar segments into U-shaped short-circuit rings. The conveying module 212 conveys the formed short-circuit rings to the installation module 213. The formed short-circuit rings are fed into the vibration unit 224 and the conveying track 225 of the conveying module 212, arranged in an orderly manner, and conveyed to the assembly station. The receiving unit 226 of the installation module 213 is activated. 234 drives the receiving block 233 to rise, and its supporting protrusion 235 receives the short-circuit ring from the conveying track 225. The receiving block 233 carrying the short-circuit ring rises to be flush with the transfer plate 237 of the pressing part 227, and puts the short-circuit ring into the transfer groove 239. The moving module 238 drives the transfer bracket 236 to move horizontally, and precisely positions the transfer groove 239 carrying the short-circuit ring directly above the motor stator installation position on the second supporting platform 201. The pressing unit 241 drives the pressing rod 242 to descend, pressing the short-circuit ring out of the transfer groove 239 and pressing it into the designated groove of the motor stator.

[0097] S3. Pre-welding shaping: The third transfer module 302 drives the motor stator to enter the welding area along the third support platform 301. The first lifting unit 313 drives the clamping bracket 311 to descend, so that the clamping seat 312 approaches the stator. The limiting blocks 323 on the first clamping plate 321 and the second clamping plate 322 clamp both sides of the short-circuit ring for positioning. As the clamping bracket 311 continues to descend, the driving block 325 inserts into the first clamping plate 321, forcing the actuating block group 324 to overcome the force of the first elastic element 334 and move closer to each other, thereby pre-bending the end of the short-circuit ring to be welded to a suitable docking angle. Then the motor stator moves to the bottom of the second clamping plate 322, and the extrusion groove 326 clamps the welding part of the short-circuit ring to ensure stable contact during subsequent welding.

[0098] S4. Welding and fixing: After the shaping is completed, the clamping seat 312 rises and resets, and the stator is moved to the bottom of the welding module 304 for automatic welding. The two ends of the short-circuit ring are firmly welded together to form a closed loop. After the welding is completed, the third transfer module 302 moves the stator out of the welding station, and the second transfer module 403 transfers the motor stator on the third support platform 301 to the fourth support platform 401 of the unloading assembly 5.

[0099] S5. Unloading and Flattening: The fourth transfer module 402 delivers the stator to the flattening station. The second lifting unit 413 drives the flattening bracket 411 to descend, so that the positioning pin 422 on the flattening seat 412 is inserted into the positioning hole of the motor stator. At the same time, the flattening protrusion 423 precisely presses against the welding area of ​​the short-circuit ring to flatten the protrusion generated by welding, ensuring a flat appearance. After flattening, the flattening seat 412 rises, and the motor stator continues to be transported by the fourth transfer module 402. Finally, it slides out through the unloading channel 405, completing the entire assembly and welding process, and enters the finished product collection area.

[0100] Furthermore, step S1 is followed by steps S1.1 and S1.2, the specific steps of which are as follows:

[0101] S1.1 Direction detection: The orientation of the motor stator on the first support platform 102 is detected by the position sensing structure 111 (first detection bracket 121 and detection sensor 122).

[0102] S1.2 Direction Adjustment: If an incorrect direction is detected, the position adjustment structure 112 is activated, the clamping cylinder 123 is activated, and the motor stator is clamped; then the rotary cylinder 124 drives the clamping cylinder 123 to rotate, and the motor stator is adjusted to the correct direction and then released.

[0103] In addition, step S2 is followed by steps S2.1 and S2.2, the specific steps of which are as follows:

[0104] S2.1 Installation Quality Inspection and Non-conforming Product Handling: The installation position sensor 252 of the short-circuit ring installation detection structure 204 detects whether the short-circuit ring is installed in place. If the installation is qualified, the second transfer module 202 moves the motor stator to the next process. If the detection is a non-conforming product, the non-conforming product unloading structure 205 is activated, and the drive module 254 drives the gripping unit 253 to grab the non-conforming product and discharge it through the discharge channel 255.

[0105] S2.2 Stator Rotation and Transfer: The motor stator with the short-circuit ring installed is sent to the end of the second support platform 201 and is fixed by the adsorption unit 515 of the motor stator rotation structure 501. The rotation unit 512 drives the rotation plate 513 to rotate the stator 180 degrees so that the end of the short-circuit ring to be welded faces upward. After the rotation is completed, the pusher unit 514 pushes the stator onto the third support platform 301 of the welding assembly 4.

[0106] This specific embodiment is merely an explanation of the present invention and is not intended to limit the invention. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. An automatic assembly and welding equipment for short-circuit rings of a motor stator, comprising a machine base (1), characterized in that, The machine base (1) is equipped with a feeding assembly (2), an assembly assembly (3), and a welding assembly (4); The loading assembly (2) includes a loading conveyor line (101) for conveying the motor stator, a first support platform (102) connecting the loading conveyor line (101) and the assembly assembly (3), and a first transfer module (104) for transferring the motor stator to the assembly assembly (3). The assembly component (3) includes a second support platform (201) and an installation structure (203) for mounting a short-circuit ring. The installation structure (203) includes a forming module (211) for forming the short-circuit ring, a conveying module (212) for conveying the short-circuit ring, and an installation module (213) for mounting the short-circuit ring on the motor stator. The output end of the second support platform (201) is connected to a motor stator flipping structure (501). The motor stator flipping structure (501) reverses the direction of the motor stator and pushes the motor stator to the welding assembly (4). The welding assembly (4) includes a third support platform (301), a shaping structure (303) and a welding module (304) arranged sequentially along the moving direction of the motor stator, and the shaping structure (303) includes a clamping bracket (311), a clamping seat (312) arranged on the clamping bracket (311), and a first lifting unit (313) that drives the clamping bracket (311) to move up and down; The clamping seat (312) includes a first clamping plate (321) and a second clamping plate (322) slidably disposed on the clamping bracket (311). The first clamping plate (321) and the second clamping plate (322) are arranged sequentially along the moving direction of the motor stator. The first clamping plate (321) and the second clamping plate (322) are provided with limiting blocks (323) for clamping the side of the short-circuit ring. The first clamping plate (321) is rotatably provided with a toggle block group (324) for bending the short-circuit ring. The second clamping plate (322) is provided with an extrusion groove (326) for clamping the welding part of the short-circuit ring. The forming module (211) includes a conveying section (221) for conveying copper bars, a cutting section (222) for cutting copper bars, and a bending section (223) for bending copper bars. The conveying module (212) includes a vibration unit (224) mounted on the machine base (1) and a conveying track (225) mounted on the vibration unit (224). The mounting module (213) includes a receiving section (226) and a pressing section (227). The receiving section (226) includes a receiving seat (231) facing the conveying track (225), a receiving plate (232) mounted on the receiving seat (231), a receiving block (233) slidably mounted on the receiving plate (232), and a receiving unit (234) for driving the receiving block (233) to move up and down. The receiving block (233) is configured to support the short-circuit ring. The receiving unit (234) drives the receiving block (233) to rise and transfer the short-circuit ring to the pressing part (227). The pressing part (227) includes a transfer bracket (236) set above the receiving block (233), a transfer plate (237) set on the transfer bracket (236), and a moving module (238) that drives the transfer bracket (236) to move. The transfer plate (237) forms a transfer groove (239) for the short-circuit ring to be placed. The pressing unit (241) is set on the transfer bracket (236). The moving end of the pressing unit (241) is connected to a pressing rod (242) that passes through the transfer groove (239). The pressing unit (241) drives the pressing rod (242) to fall so that the short-circuit ring is disengaged from the transfer groove (239) and pressed onto the motor stator. The clamping bracket (311) is provided with a driving block (325) for driving the actuating block assembly (324) to rotate. The driving block (325) is inserted into the first clamping plate (321), and the first clamping plate (321) has a clamping groove (331). The actuating block assembly (324) includes a first actuating block (332) and a second actuating block (333) hinged in the clamping groove (331), and the first actuating block (332) and the second actuating block (333) are connected to each other. A first elastic element (334) is provided between the first actuating block (332) and the second actuating block (333) so that the first actuating block (332) and the second actuating block (333) have a tendency to move away from the welding end of the short-circuit ring. A driving groove (335) is formed on the driving block (325). When the driving block (325) is inserted into the clamping groove (331), the first actuating block (332) and the second actuating block (333) are placed in the driving groove (335) and move closer to each other to bend the welding end of the short-circuit ring.

2. The automatic assembly and welding equipment for short-circuit rings of a motor stator according to claim 1, characterized in that: The first support platform (102) is provided with a position sensing structure (111) for detecting the placement direction of the motor stator and a position adjusting structure (112) for adjusting the placement direction of the motor stator. The position sensing structure (111) includes a first detection bracket (121) and a detection sensor (122) disposed on the first detection bracket (121). The detection sensor (122) is disposed facing the motor stator. The position adjusting structure (112) includes a clamping cylinder (123) for clamping the motor stator and a rotary cylinder (124) for driving the clamping cylinder (123) to rotate. The actuating end of the clamping cylinder (123) is placed on the first support platform (102).

3. The automatic assembly and welding equipment for short-circuit rings of a motor stator according to claim 1, characterized in that: The second support platform (201) is also provided with a short-circuit ring installation detection structure (204) and a defective product unloading structure (205). The short-circuit ring installation detection structure (204) includes a second detection bracket (251) and an installation position sensor (252) disposed on the second detection bracket (251). The installation position sensor (252) is disposed opposite to the short-circuit ring. The defective product unloading structure (205) includes a gripping unit (253), a drive module (254) for driving the gripping unit (253) to move, and a discharge channel (255) connected to the side of the second support platform (201).

4. The automatic assembly and welding equipment for short-circuit rings of motor stators according to claim 1, characterized in that: The motor stator flipping structure (501) includes a flipping bracket (511), a rotating unit (512) disposed on the flipping bracket (511), a flipping plate (513) disposed on the moving end of the rotating unit (512), and a pushing unit (514) for pushing the motor stator onto the third support platform (301), and the flipping plate (513) is provided with a plurality of adsorption units (515) for adsorbing the motor stator.

5. The automatic assembly and welding equipment for short-circuit rings of a motor stator according to claim 1, characterized in that: The machine tool (1) is also equipped with a feeding assembly (5). The feeding assembly (5) includes a fourth support platform (401), a second transfer module (403) for transferring the motor stator on the third support platform (301) to the fourth support platform (401), a flattening structure (404) for flattening the short-circuit ring welding position, and a feeding channel (405) connected to the output end of the fourth support platform (401). The flattening structure (404) includes a flattening bracket (411), a flattening seat (412) set on the flattening bracket (411), and a second lifting unit (413) for driving the flattening bracket (411) to move up and down.

6. The automatic assembly and welding equipment for short-circuit rings of a motor stator according to claim 5, characterized in that: The flattening seat (412) includes a flattening plate (421), a positioning post (422) and a flattening protrusion (423) disposed on the flattening plate (421). The positioning post (422) is inserted into the motor stator, and the flattening protrusion (423) abuts against the welding area of ​​the short-circuit ring.

7. The automatic assembly and welding equipment for short-circuit rings of a motor stator according to claim 5, characterized in that: The first support platform (102), the second support platform (201), the third support platform (301), and the fourth support platform (401) are equipped with a transfer assembly (6) for moving the stator of the drive motor.

8. An automatic assembly and welding process for the short-circuit ring of a motor stator, comprising the automatic assembly and welding equipment as described in claim 6, characterized in that: Includes the following steps: S1. Loading and Transfer: The loading conveyor (101) transports the motor stator to the first support platform (102). The motor stator moves along the first support platform (102) to the loading position. The first transfer module (104) grabs the motor stator from the first support platform (102) and transfers it to the second support platform (201). S2. Short-circuit ring assembly: The motor stator moves to the installation position of the second support platform (201), the forming module (211) forms the copper sheet into the specified shape, and the conveying module (212) conveys the formed short-circuit ring to the installation module (213), and the installation module (213) assembles the short-circuit ring into the specified position of the motor stator. S3. Pre-welding shaping: The motor stator flipping structure (501) reverses the direction of the motor stator so that the open end of the short-circuit ring faces upward, and pushes the motor stator onto the third support platform (301). The motor stator moves to the shaping position, and the first lifting unit (313) drives the pressing seat (312) to move down. The toggle block group (324) first bends the welding end of the short-circuit ring, and then presses the welding end through the extrusion groove (326). S4. Welding and fixing: After bending and pressing, the motor stator enters the welding station, and the welding module (304) welds the short-circuit ring. S5. Unloading and flattening: The second transfer module (403) transfers the motor stator from the third support platform (301) to the fourth support platform (401) of the unloading component (5). The motor stator enters the flattening station. The second lifting unit (413) drives the flattening seat (412) to move down and flatten the short-circuit ring. After flattening, the motor stator is output through the unloading channel (405) to complete unloading.

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