A motor stator base dove tail reinforcement welding positioning and adjustment device

Abstract

The invention discloses a welding positioning and adjustment device for a motor stator base dovetail rib, which relates to the technical field of stator welding and comprises a positioning frame. The invention improves the structure of an existing welding positioning and adjustment device for a motor stator base dovetail rib, and arranges an opposite moving mechanism on the positioning frame, and drives the welding mechanism to move oppositely through the opposite moving mechanism. A bearing unit is arranged on the positioning frame, and a shell group unit is arranged on the bearing unit. A positioning and adjustment mechanism is connected to the back of the shell group unit. A planetary assembly is driven to rotate by a driving unit of the positioning and adjustment mechanism, and the planetary assembly is driven to realize rotational positioning and adjustment of a stator core or a dovetail rib through locking control of a switching mechanism. The invention can control the welding position more accurately, reduce the positioning error caused by fixed clamping, and the dynamic adjustment method can ensure the accurate alignment between the positioning rib and the stator core, thereby improving the welding quality.

Description

Technical Field

[0001] The invention relates to the technical field of stator welding, and more specifically to a welding positioning and adjusting device for dovetail ribs of a motor stator base. Background Art

[0002] In the manufacture of large-scale generator sets, the welding of the dovetail ribs on the stator base is crucial, and the welding positioning accuracy directly affects the performance and quality of the entire motor. However, the existing stator base dovetail rib welding positioning technology has exposed a series of problems in practical applications, mainly including the inability to flexibly adjust the positioning, poor accuracy and low efficiency. These problems not only increase the manufacturing cost, but also affect the operating stability and service life of the generator.

[0003] The traditional welding positioning method of the dovetail bar of the stator base often relies on complex mechanical devices and manual operations. Once the positioning is completed, it is difficult to make flexible adjustments. This results in that once the positioning deviation occurs during the manufacturing process, a lot of time and manpower are required for rework, which seriously affects the production efficiency and manufacturing cost. Due to the lack of high-precision positioning devices and effective control means in the prior art, there are often large errors in the welding positioning of the dovetail bar of the stator base. This error not only affects the roundness and concentricity of the stator core, but also causes the generator to generate unbalanced magnetic pull during operation, increase vibration and noise, and reduce efficiency and service life. Moreover, the traditional welding positioning method requires a lot of manual operation and complex mechanical devices, which makes the entire manufacturing process cumbersome and time-consuming. At the same time, due to poor accuracy, it is often necessary to repeat positioning and adjustment many times, which further reduces production efficiency. In view of the above problems, there is an urgent need for a new type of stator base dovetail bar welding positioning technology to solve the problems of positioning that cannot be adjusted, poor accuracy and low efficiency in the prior art. In view of this, we propose a motor stator base dovetail bar welding positioning and adjustment device. Summary of the invention

[0004] The purpose of the present invention is to provide a motor stator base dovetail rib welding positioning adjustment device to solve the above technical problems.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a motor stator base dove tail rib welding positioning and adjustment device, comprising a positioning frame, the positioning frame is provided with a opposing moving mechanism, the opposing moving mechanism is symmetrically provided with a welding mechanism, the positioning frame is provided with a bearing unit at a position between two welding mechanisms, the bearing unit is provided with a shell group unit, the back of the shell group unit is connected with a positioning and adjustment mechanism, and the bearing unit is provided with a switching mechanism at a position close to the back of the positioning and adjustment mechanism;

[0006] The positioning adjustment mechanism includes a driving unit, a planetary assembly, an iron core inner support assembly, a tail rib chuck and an elastic adjustment unit. The planetary assembly is rotatably connected to the bearing unit near the back of the shell group unit. The bottom end of the driving unit is arranged at the top of the switching mechanism. The output end of the driving unit passes through the switching mechanism and is connected to the planetary assembly. The iron core inner support assembly is connected to the axis of the planetary assembly. The tail rib chuck is arranged on the planetary assembly in a ring-shaped and equidistant manner. The elastic adjustment unit is connected to the iron core inner support assembly in a ring-shaped and equidistant manner. The iron core inner support assembly and the tail rib chuck are both movably inserted into the shell group unit.

[0007] Preferably, the welding mechanism includes a guide rail, a guide block, an abutment plate, a cylinder and a argon arc welding gun head, the guide rail is symmetrically installed on the opposing moving mechanism, the guide block is slidably connected to the guide rail, the abutment plate is connected to the guide block, the cylinder is arranged on the opposing moving mechanism, the cylinder output end is connected to the abutment plate, and the argon arc welding gun head is installed on the guide block.

[0008] Preferably, the shell assembly unit includes a bearing outer disk, an inner shell, an outer shell and a welding groove, the bearing outer disk is arranged on the bearing unit, the inner shell is connected to the front side of the bearing outer disk, the outer shell is connected to the outer wall of the inner shell in a circular shape with equal intervals, the welding grooves are opened on the outer wall of the inner shell in a circular shape with equal intervals, the inner shell, the outer shell and the welding grooves are connected to each other, and the size of the welding groove is adapted to the size of the argon arc welding gun head.

[0009] Preferably, the planetary assembly includes an outer disk body, an inner gear ring, a sun gear disk, a planetary gear disk and a locking groove, the inner gear ring is rotatably connected to the shell group unit, the outer disk body is connected to the inner gear ring, the sun gear disk is sleeved on the output end of the drive unit, the planetary gear disk is rotatably connected in a ring shape with equal intervals between the inner gear ring and the sun gear disk, the locking groove is opened in a ring shape with equal intervals on the outer wall of the outer disk body and the inner gear ring, and one end of the switching mechanism is movably inserted in the locking groove.

[0010] Preferably, the core inner support assembly includes a slide rail, a slider, a rotating block, a mounting plate, an inner support column, a rotating column A, a rotating column B, a curved rod and a servo motor. The slide rail is arranged in a circular shape with equal spacing on the sun gear plate, the slider is slidably connected to the slide rail, the rotating block is rotatably connected to several of the slide rails, the mounting plate is connected to the slider, the inner support column is arranged at one end of the mounting plate, the rotating column A is arranged at the other end of the mounting plate, the rotating column B is arranged in a circular shape with equal spacing on the rotating block, one end of the curved rod is rotatably sleeved on the rotating column A, and the other end of the curved rod is rotatably sleeved on the rotating column B, the elastic adjustment unit is connected to the inner support column, and the servo motor is connected to the rotating block.

[0011] Preferably, the elastic adjustment unit includes a mounting shell, an elastic groove, an elastic component, a contact plate and bolts, the mounting shell is connected to the inner support column, the elastic groove is opened on the mounting shell, the elastic component is arranged inside the elastic groove, the contact plate is movably inserted in the mounting shell, and a plurality of the bolts are inserted in the mounting shell.

[0012] Preferably, an insertion side hole is opened on the inner wall of the elastic groove, an insertion top hole is opened on the top of the mounting shell, the contact plate is movably inserted in the insertion top hole, the bolt is inserted in the insertion side hole, and the inner end of the bolt contacts the elastic component.

[0013] Preferably, the elastic component includes a coil spring, a spring and a flexible connecting shell, a plurality of the coil springs are linearly arranged inside the elastic groove, the spring is connected to the top of the coil spring, one end of the flexible connecting shell is connected to the top of the spring, and the other end of the flexible connecting shell is connected to the bottom of the contact plate.

[0014] Preferably, the switching mechanism includes a support frame, a screw hole, a rotating handle, a threaded rod, a sliding disk and a locking rod. The support frame is connected to the back of the carrying unit, the screw hole is opened on the support frame, the threaded rod is threadedly connected to the screw hole, the rotating handle is connected to the end of the threaded rod away from the screw hole, the sliding disk is movably sleeved on the output end of the drive unit, the locking rods are arranged in a ring shape with equal intervals on the outer wall of the sliding disk, and the locking rods are adapted to the locking grooves.

[0015] The present invention also provides a method for using the motor stator base dovetail rib welding positioning adjustment device, comprising the following steps:

[0016] S1, stator core arrangement operation;

[0017] First, the servo motor is driven to rotate the rotating block, and the rotating block drives the rotating column B to rotate. Since the rotating column B and the curved rod, and the curved rod and the rotating column A are all rotatably connected, the rotating column B pulls the rotating column A through the curved rod, and the rotating column A drives the mounting plate, the inner support column and the slider to move on the slide rail, so that the inner support column drives the elastic adjustment unit to move inward until it is adjusted to a state that matches the inner diameter of the stator core, and then a plurality of stator cores are sleeved on the elastic adjustment unit and slide in through the inner wall of the inner shell;

[0018] S2, stator core positioning and adjustment operation;

[0019] The rotating handle is turned to drive the threaded rod to rotate out of the screw hole, and the threaded rod drives the sliding plate to slide at the output end of the driving unit. The sliding plate drives a number of locking rods to pull out of the locking groove, and then drives the sun gear plate to rotate through the driving unit. The sun gear plate meshes with the planetary gear plate, driving the planetary gear plate to rotate. The planetary gear plate meshes with the inner gear ring, driving the inner gear ring to rotate, so that the planetary assembly as a whole revolves, driving the elastic adjustment unit and a number of stator cores to rotate for positioning adjustment;

[0020] S3, dovetail reinforcement arrangement operation;

[0021] After the stator core is rotated and positioned, a number of dove tail ribs are slid into the outer shell, and the dove tail ribs are clamped and fixed by the tail rib chuck;

[0022] S4, dove tail tendon positioning and adjustment operation;

[0023] Turning the rotating handle drives the threaded rod to screw into the screw hole, and the threaded rod drives the sliding plate to slide at the output end of the drive unit. The sliding plate drives a number of locking rods to insert into the locking groove, and then drives the sun gear plate to rotate through the drive unit. The sun gear plate meshes with the planetary gear plate, driving the planetary gear plate to rotate. At this time, since the inner gear ring is fixed, the planetary gear plate rotates on the inner wall of the inner gear ring, driving the tail rib chuck and the dove tail rib to rotate for positioning adjustment;

[0024] S5. Welding operation;

[0025] When the stator core and the dove tail rib are positioned and adjusted, the welding mechanism is driven to move in opposite directions through the opposite moving mechanism until the argon arc welding gun head is inserted into the welding groove. The cylinder repeatedly strokes and returns, driving the abutment plate, guide block and argon arc welding gun head to reciprocate on the guide rail to perform welding operations.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] 1. The present invention improves the structure of the existing motor stator base dove tail rib welding positioning and adjustment device, arranges an opposing moving mechanism on the positioning frame, drives the welding mechanism to move in opposite directions through the opposing moving mechanism, and is provided with a bearing unit on the positioning frame, and a shell group unit is provided on the bearing unit. The back of the shell group unit is connected with a positioning and adjustment mechanism, and the planetary assembly is driven to rotate by the driving unit of the positioning and adjustment mechanism, and the planetary assembly is driven by the locking control of the switching mechanism to realize the rotational positioning and adjustment of the stator core or the dove tail rib. The present invention can control the welding position more accurately, reduce the positioning error caused by fixed clamping, and the dynamic adjustment method can ensure the accurate alignment between the positioning rib and the stator core, thereby improving the welding quality.

[0028] 2. In the present invention, a bearing outer plate is arranged on the bearing unit, and an inner shell and an outer shell are connected to the bearing outer plate. The inner shell is cylindrical, and the outer shell is semi-cylindrical. The inner shell and the outer shell form an internally connected flower-shaped cylindrical structure, so that it is easier to stack multiple stator cores or insert dovetail bars, without the need for multiple workers to carry them at the same time. The welding groove opened on the inner shell allows the argon arc welding gun head to be inserted into the welding groove for welding operations, which also reduces the impact and damage to the outside world during the welding process.

[0029] 3. In the present invention, an inner gear ring is rotatably arranged on the shell assembly unit, an outer disc body is connected to the back of the inner gear ring, a sun gear disc is sleeved on the output end of the drive unit, a planetary gear disc is meshed with the sun gear disc and the inner gear ring, and when the locking rod of the switching mechanism is not inserted into the locking groove, a plurality of stator iron core sheets are sleeved on the core inner support assembly. After the sleeve is completed, the driving unit drives the planetary assembly to rotate as a whole so that the core inner support assembly drives a plurality of stator iron core sheets to rotate and position as a whole. When the locking rod of the switching mechanism is inserted into the locking groove, the inner gear ring is locked, and the sun gear disc drives the planetary gear disc to rotate around the inner wall of the inner gear ring to achieve the positioning and adjustment of the dove tail rib. The two adjustment methods of the present invention correspond to the two objects to be welded respectively. The traditional fixed clamping method often takes a lot of time to adjust and position, and the adjustment accuracy is limited. However, this adjustment device can greatly shorten the adjustment time and improve production efficiency through fast and accurate rotation adjustment.

[0030] 4. In the present invention, five slide rails are arranged in an annular manner with equal intervals on the outer surface of the sun gear disk, and five sliders are slidably connected to the five slide rails. When the servo motor drives the rotating block to rotate, the rotating block drives the rotating column B to rotate. Since the rotating column B and the curved rod, and the curved rod and the rotating column A are all rotatably connected, the rotating column B pulls the rotating column A through the curved rod, and the rotating column A drives the mounting plate, the inner support column and the slider to move on the slide rail, so that the inner support column drives the elastic adjustment unit to move inward or outward, thereby realizing the expansion, clamping and fixing of the inner wall of the stator core. The core inner support assembly of the present invention can fix stator cores of various sizes, so that the device of the present invention can be flexibly adjusted according to different sizes, thereby enhancing its scope of application and versatility. The annular inner support method has better support to prevent position displacement during welding.

[0031] 5. In the present invention, a mounting shell is connected to the inner support column, a trapezoidal elastic groove is provided on the mounting shell, a coil spring is provided at the bottom end of the elastic groove, a spring is provided at the top end of the coil spring, a plurality of interpenetrating side holes are provided on the inner side of the elastic groove, bolts are inserted in the interpenetrating side holes, the inner ends of the bolts abut against the outer walls of the coil springs, a contact plate is movably inserted in the interpenetrating top hole at the top end of the mounting shell, a flexible connecting shell is connected to the bottom end of the contact plate, and a spring is connected to the bottom end of the flexible connecting shell. Since argon arc welding is used for welding, the heat energy is relatively concentrated, which has a greater impact on the overall data. The elastic adjustment unit can effectively prevent the stator core from warping and deformation caused by the expansion of the stator core during welding, and can also reduce the vibration of the stator core, reduce the error caused by deformation, and improve the welding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall front structure of the present invention;

[0033] Figure 2 It is a schematic diagram of the overall back structure of the present invention;

[0034] Figure 3 It is a schematic diagram of the structure of the opposing moving mechanism and the welding mechanism of the present invention;

[0035] Figure 4 It is a schematic diagram of the welding mechanism structure of the present invention;

[0036] Figure 5 It is a schematic diagram of the internal structure of the whole and shell group unit of the present invention;

[0037] Figure 6 It is a schematic diagram of the split structure of the positioning adjustment mechanism of the present invention;

[0038] Figure 7 It is a schematic diagram of the structure of the planetary assembly, the core inner support assembly and the tail rib chuck of the present invention;

[0039] Figure 8 It is a schematic diagram of the structure of the planetary assembly of the present invention;

[0040] Fig. 9 It is a schematic diagram of the structure of the core inner support assembly of the present invention;

[0041] Fig.10 It is a schematic diagram of the split structure of the core inner support assembly of the present invention;

[0042] Fig.11 It is a schematic diagram of the structure of the bearing unit, the shell group unit and the switching mechanism of the present invention;

[0043] Fig.12 It is a schematic cross-sectional structure diagram of the elastic adjustment unit of the present invention;

[0044] Fig.13 It is a schematic diagram of the split structure of the elastic adjustment unit of the present invention;

[0045] Fig.14 It is a schematic cross-sectional view of the coil spring, spring and flexible connection shell of the present invention;

[0046] Fig.15 It is a schematic diagram of the welding use state of the present invention.

[0047] Description of the numbers in the figure:

[0048] 1. Positioning frame; 2. Opposite moving mechanism; 3. Welding mechanism; 4. Carrying unit; 5. Positioning adjustment mechanism; 6. Shell unit; 7. Switching mechanism;

[0049] 301, guide rail; 302, guide block; 303, abutment plate; 304, cylinder; 305, argon arc welding gun head;

[0050] 501, driving unit; 502, planetary assembly; 503, core inner support assembly; 504, tail rib chuck; 505, elastic adjustment unit;

[0051] 601, outer bearing plate; 602, inner shell; 603, outer shell; 604, welding groove;

[0052] 701, support frame; 702, screw hole; 703, rotating handle; 704, threaded rod; 705, sliding plate; 706, locking rod;

[0053] 5021, outer disc body; 5022, inner gear ring; 5023, sun gear disc; 5024, planetary gear disc; 5025, locking groove;

[0054] 5031, slide rail; 5032, slider; 5033, rotating block; 5034, mounting plate; 5035, inner support column; 5036, rotating column A; 5037, rotating column B; 5038, curved rod; 5039, servo motor;

[0055] 5051. mounting shell; 5052. elastic groove; 5053. elastic component; 5054. contact plate; 5055. bolt; 5056. through side hole; 5057. through top hole; 5058. coil spring; 5059. spring; 5060. flexible connection shell. DETAILED DESCRIPTION

[0056] like Figures 1 to 15 As shown, the present invention relates to a motor stator base dove tail rib welding positioning and adjustment device, comprising a positioning frame 1, a positioning frame 1 is provided with a counter-moving mechanism 2, a welding mechanism 3 is symmetrically provided on the counter-moving mechanism 2, a bearing unit 4 is provided at a position between two welding mechanisms 3 on the positioning frame 1, a shell group unit 6 is provided on the bearing unit 4, a positioning and adjustment mechanism 5 is connected to the back of the shell group unit 6, and a switching mechanism 7 is provided at a position of the bearing unit 4 near the back of the positioning and adjustment mechanism 5; the positioning and adjustment mechanism 5 comprises a driving unit 501, a planetary assembly 502, an iron core inner support assembly 503, and a tail rib chuck 50 4 and elastic adjustment unit 505, the planetary component 502 is rotatably connected to the bearing unit 4 near the back of the shell group unit 6, the bottom end of the driving unit 501 is arranged at the top of the switching mechanism 7, the output end of the driving unit 501 passes through the switching mechanism 7 and is connected to the planetary component 502, the core inner support component 503 is connected to the axis of the planetary component 502, the tail rib chuck 504 is arranged on the planetary component 502 in a ring shape with equal spacing, the elastic adjustment unit 505 is connected to the core inner support component 503 in a ring shape with equal spacing, and the core inner support component 503 and the tail rib chuck 504 are both movably inserted into the shell group unit 6. The present invention improves the structure of the existing motor stator base dovetail rib welding positioning and adjustment device, arranges an opposing moving mechanism 2 on the positioning frame 1, drives the welding mechanism 3 to move in opposite directions through the opposing moving mechanism 2, and is provided with a bearing unit 4 on the positioning frame 1, and a shell group unit 6 is provided on the bearing unit 4, and a positioning and adjustment mechanism 5 is connected to the back of the shell group unit 6. The planetary assembly 502 is driven to rotate by the driving unit 501 of the positioning and adjustment mechanism 5, and the planetary assembly 502 is driven by the locking control of the switching mechanism 7 to realize the rotational positioning and adjustment of the stator core or the dovetail rib. The present invention can control the welding position more accurately, reduce the positioning error caused by fixed clamping, and the dynamic adjustment method can ensure the accurate alignment between the positioning rib and the stator core, thereby improving the welding quality.

[0057] In the embodiment of the present invention, the welding mechanism 3 includes a guide rail 301, a guide block 302, an abutment plate 303, a cylinder 304 and a argon arc welding gun head 305. The guide rail 301 is symmetrically mounted on the opposing moving mechanism 2, the guide block 302 is slidably connected to the guide rail 301, the abutment plate 303 is connected to the guide block 302, the cylinder 304 is arranged on the opposing moving mechanism 2, the output end of the cylinder 304 is connected to the abutment plate 303, and the argon arc welding gun head 305 is installed on the guide block 302. In the present invention, the opposing moving mechanism 2 drives the welding mechanism 3 to move horizontally as a whole, and the cylinder 304 drives the abutment plate 303 and the guide block 302 to move on the guide rail 301 during the return stroke, and at the same time drives the argon arc welding gun head 305 arranged on the guide block 302 to move, so as to realize the biaxial movement of the argon arc welding gun head 305, so as to facilitate the welding of the connection between the stator core and the dovetail bar after positioning and adjusting.

[0058] In an embodiment of the present invention, the shell assembly unit 6 includes a supporting outer disk 601, an inner shell 602, an outer shell 603 and a welding groove 604. The supporting outer disk 601 is arranged on the supporting unit 4, the inner shell 602 is connected to the front of the supporting outer disk 601, the outer shell 603 is connected to the outer wall of the inner shell 602 in a circular shape with equal intervals, and the welding groove 604 is opened on the outer wall of the inner shell 602 in a circular shape with equal intervals. The inner shell 602, the outer shell 603 and the welding groove 604 are interconnected, and the size of the welding groove 604 is adapted to the size of the argon arc welding gun head 305. In the present invention, a bearing outer disk 601 is arranged on the bearing unit 4, and an inner shell 602 and an outer shell 603 are connected to the bearing outer disk 601. The inner shell 602 is cylindrical, and the outer shell 603 is semi-cylindrical. The inner shell 602 and the outer shell 603 form an internally connected flower-shaped cylindrical structure, so that whether in the process of stacking multiple stator cores or inserting dovetail bars, it is relatively easy and does not require multiple workers to carry them at the same time. The welding groove 604 opened on the inner shell 602 allows the argon arc welding gun head 305 to be inserted into the welding groove 604 for welding operations, which also reduces the impact and damage to the outside world during the welding process.

[0059] As another embodiment of the present invention, the switching mechanism 7 includes a support frame 701, a screw hole 702, a rotating handle 703, a threaded rod 704, a sliding disk 705 and a locking rod 706. The support frame 701 is connected to the back of the carrying unit 4, the screw hole 702 is opened on the support frame 701, the threaded rod 704 is threadedly connected to the screw hole 702, the rotating handle 703 is connected to the end of the threaded rod 704 away from the screw hole 702, the sliding disk 705 is movably mounted on the output end of the driving unit 501, and the locking rods 706 are arranged in a ring shape with equal intervals on the outer wall of the sliding disk 705, and the locking rods 706 are adapted to the locking groove 5025. In the present invention, a support frame 701 is set on the back of the bearing unit 4, and the driving unit 501 is placed on the top of the support frame 701. The rotating handle 703 is turned to drive the threaded rod 704 to screw into the screw hole 702. The threaded rod 704 pushes the sliding plate 705 to slide at the output end of the driving unit 501. The sliding plate 705 drives a plurality of locking rods 706 to insert into the locking groove 5025 to lock the inner gear ring 5022.

[0060] As another embodiment of the present invention, the planetary assembly 502 includes an outer disk body 5021, an inner gear ring 5022, a sun gear disk 5023, a planetary gear disk 5024 and a locking groove 5025. The inner gear ring 5022 is rotatably connected to the shell group unit 6, the outer disk body 5021 is connected to the inner gear ring 5022, the sun gear disk 5023 is sleeved on the output end of the drive unit 501, the planetary gear disk 5024 is rotatably connected in a ring shape with equal intervals between the inner gear ring 5022 and the sun gear disk 5023, the locking groove 5025 is opened in a ring shape with equal intervals on the outer wall of the outer disk body 5021 and the inner gear ring 5022, and one end of the switching mechanism 7 is movably inserted in the locking groove 5025. In the present invention, an inner gear ring 5022 is rotatably arranged on the shell assembly unit 6, an outer disc body 5021 is connected to the back of the inner gear ring 5022, a sun gear disc 5023 is sleeved on the output end of the drive unit 501, and a planetary gear disc 5024 is meshed and connected with the sun gear disc 5023 and the inner gear ring 5022. When the locking rod 706 of the switching mechanism 7 is not inserted into the locking groove 5025, a plurality of stator iron core sheets are sleeved on the iron core inner support assembly 503. After the sleeve is completed, the planetary assembly 502 is driven to rotate as a whole through the drive unit 501. The rotation makes the core inner support assembly 503 drive several stator core pieces to rotate and position as a whole. When the locking rod 706 of the switching mechanism 7 is inserted into the locking groove 5025, the inner gear ring 5022 is locked, and the sun gear plate 5023 drives the planetary gear plate 5024 to rotate around the inner wall of the inner gear ring 5022 to achieve the positioning adjustment of the dove tail rib. The two adjustment methods of the present invention correspond to the two objects to be welded respectively. The traditional fixed clamping method often takes a lot of time to adjust the positioning, and the adjustment accuracy is limited. This adjustment device can greatly shorten the adjustment time and improve production efficiency through fast and accurate rotation adjustment.

[0061] The core inner support assembly 503 includes a slide rail 5031, a slider 5032, a rotating block 5033, a mounting plate 5034, an inner support column 5035, a rotating column A 5036, a rotating column B 5037, a curved rod 5038 and a servo motor 5039. The slide rail 5031 is arranged in a circular shape with equal spacing on the sun gear plate 5023. The slider 5032 is slidably connected to the slide rail 5031. The rotating block 5033 is rotatably connected to a plurality of slide rails 5031. The mounting plate 5034 is connected to the slide rail 5032, the inner support column 5035 is arranged at one end of the mounting plate 5034, the rotating column A5036 is arranged at the other end of the mounting plate 5034, the rotating columns B5037 are arranged in a ring shape with equal intervals on the rotating block 5033, one end of the curved rod 5038 is rotatably sleeved on the rotating column A5036, and the other end of the curved rod 5038 is rotatably sleeved on the rotating column B5037, the elastic adjustment unit 505 is connected to the inner support column 5035, and the servo motor 5039 is connected to the rotating block 5033. In the present invention, five slide rails 5031 are arranged in an annular manner at equal intervals on the outer surface of the sun gear plate 5023, and five sliders 5032 are slidably connected to the five slide rails 5031. When the servo motor 5039 drives the rotating block 5033 to rotate, the rotating block 5033 drives the rotating column B5037 to rotate. Since the rotating column B5037 and the curved rod 5038, and the curved rod 5038 and the rotating column A5036 are all rotatably connected, the rotating column B5037 pulls the rotating column A5036 through the curved rod 5038, and the rotating column A5036 is rotated. 5036 drives the mounting plate 5034, the inner support column 5035 and the slider 5032 to move on the slide rail 5031, so that the inner support column 5035 drives the elastic adjustment unit 505 to move inward or outward, thereby achieving the expansion, clamping and fixing of the inner wall of the stator core. The core inner support assembly 503 of the present invention can fix stator cores of various sizes, so that the device of the present invention can be flexibly adjusted according to different sizes, thereby enhancing its scope of application and versatility. The annular inner support method has better support and prevents the position from shifting during the welding process.

[0062] As another embodiment of the present invention, the elastic adjustment unit 505 includes a mounting shell 5051, an elastic groove 5052, an elastic component 5053, a contact plate 5054 and bolts 5055. The mounting shell 5051 is connected to the inner support column 5035. The elastic groove 5052 is provided on the mounting shell 5051. The elastic component 5053 is provided inside the elastic groove 5052. The contact plate 5054 is movably inserted in the mounting shell 5051. A plurality of bolts 5055 are inserted in the mounting shell 5051. An insertion side hole 5056 is provided on the inner wall of the elastic groove 5052. An insertion top hole 5057 is provided on the top of the mounting shell 5051. The contact plate 5054 is movably inserted in the insertion top hole 5057. The bolts 5055 are inserted in the insertion side hole 5056. The inner end of the bolt 5055 contacts the elastic component 5053. The elastic component 5053 includes a coil spring 5058, a spring 5059 and a flexible connection shell 5060. A plurality of coil springs 5058 are linearly arranged inside the elastic groove 5052. The spring 5059 is connected to the top of the coil spring 5058. One end of the flexible connection shell 5060 is connected to the top of the spring 5059. The other end of the flexible connection shell 5060 is connected to the bottom of the contact plate 5054. In the present invention, the mounting shell 5051 is connected to the inner support column 5035. The mounting shell 5051 is provided with a trapezoidal elastic groove 5052. The coil spring 5058 is provided at the bottom of the elastic groove 5052. The spring 5059 is provided at the top of the coil spring 5058. A plurality of interlaced side holes 5056 are provided on the inner side of the elastic groove 5052. Bolts 5055 are inserted into the interlaced side holes 5056. The inner end of the bolt 5055 abuts against the outer wall of the coil spring 5058. The interlaced top of the top of the mounting shell 5051 A contact plate 5054 is movably inserted into the hole 5057, and a flexible connecting shell 5060 is connected to the bottom end of the contact plate 5054, and a spring 5059 is connected to the bottom end of the flexible connecting shell 5060. Since the welding adopts argon arc welding, the heat energy is relatively concentrated, which has a greater impact on the overall data. The elastic adjustment unit 505 can effectively prevent the stator core from warping and deformation caused by the expansion of the stator core during the welding process, and can also reduce the vibration of the stator core, reduce the error caused by deformation, and improve the welding quality.

[0063] This embodiment provides a method for using a motor stator base dovetail rib welding positioning adjustment device, comprising the following steps:

[0064] S1, stator core arrangement operation;

[0065] First, the servo motor 5039 is driven to rotate the rotating block 5033, and the rotating block 5033 drives the rotating column B5037 to rotate. Since the rotating column B5037 and the curved rod 5038, and the curved rod 5038 and the rotating column A5036 are all rotatably connected, the rotating column B5037 pulls the rotating column A5036 through the curved rod 5038, and the rotating column A5036 drives the mounting plate 5034, the inner support column 5035 and the slider 5032 to move on the slide rail 5031, so that the inner support column 5035 drives the elastic adjustment unit 505 to move inward until it is adjusted to a state matching the inner diameter of the stator core, and then a plurality of stator cores are sleeved on the elastic adjustment unit 505 and slide into through the inner wall of the inner shell 602;

[0066] S2, stator core positioning and adjustment operation;

[0067] The rotating handle 703 is rotated to drive the threaded rod 704 to be screwed out of the screw hole 702, and the threaded rod 704 drives the sliding plate 705 to slide at the output end of the driving unit 501. The sliding plate 705 drives the locking rods 706 to pull out the locking grooves 5025, and then drives the sun gear plate 5023 to rotate through the driving unit 501. The sun gear plate 5023 is meshed with the planetary gear plate 5024, driving the planetary gear plate 5024 to rotate. The planetary gear plate 5024 is meshed with the inner gear ring 5022, driving the inner gear ring 5022 to rotate, so that the planetary assembly 502 revolves as a whole, driving the elastic adjustment unit 505 and the stator cores to rotate for positioning adjustment;

[0068] S3, dovetail reinforcement arrangement operation;

[0069] After the stator core is rotated and positioned, a number of dove tail ribs are slid into the outer shell 603, and the dove tail ribs are clamped and fixed by the tail rib chuck 504;

[0070] S4, dove tail tendon positioning and adjustment operation;

[0071] The rotating handle 703 is turned to drive the threaded rod 704 to screw into the screw hole 702, and the threaded rod 704 drives the sliding plate 705 to slide at the output end of the driving unit 501. The sliding plate 705 drives a plurality of locking rods 706 to insert into the locking groove 5025, and then drives the sun gear plate 5023 to rotate through the driving unit 501. The sun gear plate 5023 meshes with the planetary gear plate 5024, driving the planetary gear plate 5024 to rotate. At this time, since the inner gear ring 5022 is fixed, the planetary gear plate 5024 generates self-rotation on the inner wall of the inner gear ring 5022, driving the tail rib chuck 504 and the dove tail rib to rotate for positioning adjustment;

[0072] S5. Welding operation;

[0073] When the stator core and the dove tail rib are positioned and adjusted, the welding mechanism 3 is driven to move in opposite directions by the opposite moving mechanism 2 until the argon arc welding gun head 305 is inserted into the welding groove 604. The cylinder 304 repeatedly strokes and returns, driving the abutment plate 303, the guide block 302 and the argon arc welding gun head 305 to reciprocate on the guide rail 301 to perform welding operations.

[0074] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A motor stator base dovetail rib welding positioning and adjustment device, characterized in that: The invention comprises a positioning frame (1), wherein the positioning frame (1) is provided with a facing moving mechanism (2), the facing moving mechanism (2) is symmetrically provided with a welding mechanism (3), the positioning frame (1) is provided with a bearing unit (4) at a position between the two welding mechanisms (3), the bearing unit (4) is provided with a shell assembly unit (6), the back of the shell assembly unit (6) is connected with a positioning adjustment mechanism (5), and the bearing unit (4) is provided with a switching mechanism (7) at a position close to the back of the positioning adjustment mechanism (5); The positioning adjustment mechanism (5) comprises a driving unit (501), a planetary assembly (502), an iron core inner support assembly (503), a tail rib chuck (504) and an elastic adjustment unit (505); the planetary assembly (502) is rotatably connected to a position of the bearing unit (4) close to the back of the shell assembly unit (6); the bottom end of the driving unit (501) is arranged at the top end of the switching mechanism (7); the output end of the driving unit (501) passes through the switching mechanism (7) and is connected to the planetary assembly (502); the iron core inner support assembly (503) is connected to the axis of the planetary assembly (502); the tail rib chuck (504) is arranged on the planetary assembly (502) in an annular shape with equal spacing; the elastic adjustment unit (505) is connected to the iron core inner support assembly (503) in an annular shape with equal spacing; the iron core inner support assembly (503) and the tail rib chuck (504) are both movably inserted into the shell assembly unit (6); The shell assembly unit (6) comprises a bearing outer disk (601), an inner shell (602), an outer shell (603) and a welding groove (604); the bearing outer disk (601) is arranged on the bearing unit (4); the inner shell (602) is connected to the front of the bearing outer disk (601); the outer shell (603) is connected to the outer wall of the inner shell (602) in an annular shape at equal intervals; the welding groove (604) is opened on the outer wall of the inner shell (602) in an annular shape at equal intervals; the inner shell (602), the outer shell (603) and the welding groove (604) are connected to each other; The planetary assembly (502) comprises an outer disc body (5021), an inner gear ring (5022), a sun gear disc (5023), a planetary gear disc (5024) and a locking groove (5025); the inner gear ring (5022) is rotatably connected to the shell assembly unit (6); the outer disc body (5021) is connected to the inner gear ring (5022); the sun gear disc (5023) is sleeved on the output end of the drive unit (501); the planetary gear disc (5024) is rotatably connected to a position between the inner gear ring (5022) and the sun gear disc (5023) at equal intervals in an annular shape; the locking groove (5025) is formed on the outer wall of the outer disc body (5021) and the inner gear ring (5022) at equal intervals in an annular shape; and one end of the switching mechanism (7) is movably inserted into the locking groove (5025); The core inner support assembly (503) comprises a slide rail (5031), a slider (5032), a rotating block (5033), a mounting plate (5034), an inner support column (5035), a rotating column A (5036), a rotating column B (5037), a curved rod (5038) and a servo motor (5039); the slide rail (5031) is arranged in a circular shape with equal spacing on the sun gear plate (5023); the slider (5032) is slidably connected to the slide rail (5031); the rotating block (5033) is rotatably connected to a plurality of the slide rails (5031); the mounting plate (5034) is provided with a plurality of inner support columns (5035), a rotating column A (5036), a rotating column B (5037), a curved rod (5038) and a servo motor (5039); The inner support column (5035) is provided at one end of the mounting plate (5034), the rotating column A (5036) is provided at the other end of the mounting plate (5034), the rotating columns B (5037) are arranged on the rotating block (5033) in a circular shape and at equal intervals, one end of the curved rod (5038) is rotatably sleeved on the rotating column A (5036), and the other end of the curved rod (5038) is rotatably sleeved on the rotating column B (5037), and the servo motor (5039) is connected to the rotating block (5033); The elastic adjustment unit (505) comprises a mounting shell (5051), an elastic groove (5052), an elastic component (5053), a contact plate (5054) and a bolt (5055); the mounting shell (5051) is connected to the inner support column (5035); the elastic groove (5052) is provided on the mounting shell (5051); the elastic component (5053) is arranged inside the elastic groove (5052); and the contact plate (5054) is movably inserted into the mounting shell (5051). 51), a plurality of bolts (5055) are inserted into the mounting housing (5051); an insertion side hole (5056) is provided on the inner wall of the elastic groove (5052), an insertion top hole (5057) is provided on the top of the mounting housing (5051), the contact plate (5054) is movably inserted into the insertion top hole (5057), the bolts (5055) are inserted into the insertion side hole (5056), and the inner ends of the bolts (5055) contact the elastic component (5053); The elastic component (5053) comprises a coil spring (5058), a spring (5059) and a flexible connection shell (5060); a plurality of the coil springs (5058) are linearly arranged inside the elastic groove (5052); the spring (5059) is connected to the top of the coil spring (5058); one end of the flexible connection shell (5060) is connected to the top of the spring (5059); and the other end of the flexible connection shell (5060) is connected to the bottom of the contact plate (5054).

2. The motor stator base dovetail rib welding positioning and adjustment device according to claim 1, characterized in that: The welding mechanism (3) comprises a guide rail (301), a guide block (302), an abutment plate (303), a cylinder (304) and an argon arc welding gun head (305); the guide rail (301) is symmetrically mounted on the opposing moving mechanism (2); the guide block (302) is slidably connected to the guide rail (301); the abutment plate (303) is connected to the guide block (302); the cylinder (304) is arranged on the opposing moving mechanism (2); the output end of the cylinder (304) is connected to the abutment plate (303); the argon arc welding gun head (305) is mounted on the guide block (302); and the size of the welding groove (604) is adapted to the size of the argon arc welding gun head (305).

3. A motor stator base dovetail rib welding positioning and adjustment device according to claim 2, characterized in that: The switching mechanism (7) comprises a support frame (701), a screw hole (702), a rotating handle (703), a threaded rod (704), a sliding disk (705) and a locking rod (706); the support frame (701) is connected to the back of the bearing unit (4); the screw hole (702) is opened on the support frame (701); the threaded rod (704) is threadedly connected to the screw hole (702); the rotating handle (703) is connected to an end of the threaded rod (704) away from the screw hole (702); the sliding disk (705) is movably sleeved on the output end of the driving unit (501); the locking rods (706) are arranged on the outer wall of the sliding disk (705) in a ring shape and at equal intervals; and the locking rods (706) are adapted to the locking grooves (5025).

4. The method for using the motor stator base dovetail reinforcement welding positioning adjustment device according to claim 3 is characterized in that: The following steps are involved: S1, stator core arrangement operation; First, the servo motor (5039) is driven to drive the rotating block (5033) to rotate, and the rotating block (5033) drives the rotating column B (5037) to rotate. Since the rotating column B (5037) and the curved rod (5038), the curved rod (5038) and the rotating column A (5036) are all rotatably connected, the rotating column B (5037) pulls the rotating column A (5036) through the curved rod (5038), and the rotating column A (5036) drives the mounting plate (5034), the inner support column (5035) and the slider (5032) to move on the slide rail (5031), so that the inner support column (5035) drives the elastic adjustment unit (505) to move inward until it is adjusted to a state matching the inner diameter of the stator core, and then a plurality of stator cores are sleeved on the elastic adjustment unit (505) and slide into the elastic adjustment unit through the inner wall of the inner shell (602); S2, stator core positioning and adjustment operation; The rotating handle (703) is rotated to drive the threaded rod (704) to rotate out of the screw hole (702), and the threaded rod (704) drives the sliding disk (705) to slide at the output end of the driving unit (501). The sliding disk (705) drives the plurality of locking rods (706) to pull out the locking groove (5025), and then drives the sun gear disk (5023) to rotate through the driving unit (501). The sun gear disk (5023) meshes with the planetary gear disk (5024), driving the planetary gear disk (5024) to rotate. The planetary gear disk (5024) meshes with the inner gear ring (5022), driving the inner gear ring (5022) to rotate, so that the planetary assembly (502) as a whole generates an orbit, and drives the elastic adjustment unit (505) and the plurality of stator cores to rotate for positioning adjustment; S3, dovetail reinforcement arrangement operation; After the stator core is rotated and positioned, a plurality of dove tail ribs are slid into the outer shell (603), and the dove tail ribs are clamped and fixed by the tail rib chuck (504); S4, dove tail tendon positioning and adjustment operation; The rotating handle (703) is rotated to drive the threaded rod (704) to rotate in the screw hole (702), and the threaded rod (704) drives the sliding plate (705) to slide at the output end of the driving unit (501). The sliding plate (705) drives a plurality of locking rods (706) to be inserted into the locking groove (5025), and then drives the sun gear plate (5023) to rotate through the driving unit (501). The sun gear plate (5023) meshes with the planetary gear plate (5024), driving the planetary gear plate (5024) to rotate. At this time, since the inner gear ring (5022) is fixed, the planetary gear plate (5024) generates self-rotation on the inner wall of the inner gear ring (5022), driving the tail rib chuck (504) and the dove tail rib to rotate for positioning adjustment; S5. Welding operation; After the stator core and the dovetail rib are positioned and adjusted, the opposite moving mechanism (2) drives the welding mechanism (3) to move in opposite directions until the argon arc welding gun head (305) is inserted into the welding groove (604), and the cylinder (304) repeatedly strokes and returns, driving the abutment plate (303), the guide block (302) and the argon arc welding gun head (305) to reciprocate on the guide rail (301) to perform welding operations.

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