Motor rotor end ring automatic caulking device based on intermediate frequency brazing

Abstract

The utility model discloses a motor rotor end ring automatic caulking device based on intermediate frequency brazing, and relates to the technical field of motor rotor end ring processing, the motor rotor end ring automatic caulking device comprises an intermediate frequency power supply box and a placing table, the side surface of the intermediate frequency power supply box is provided with a heating coil, the heating contact surface of the heating coil is fixedly connected to the top of the placing table, and the placing table is provided with a cavity. And a multi-point positioning and clamping mechanism is arranged in the placing table. When the motor rotor and the end ring are automatically caulked, a worker places the rotor and the end ring on the placing table, and the motor is started to drive the rotating shaft to rotate. The rotating shaft drives the small gear to rotate and rotates slowly through meshing transmission of the large gear, and the large gear drives the four sliding columns to move along the contour line through the four sliding arc grooves, so that the clamping frame linearly moves in the sliding grooves, the four fine adjustment columns are promoted to move, and the positioning cone touches the motor rotor to complete clamping.

Description

Technical Field

[0001] This utility model belongs to the field of safety engineering technology, and in particular relates to an automatic gap-filling device for motor rotor end rings based on medium frequency brazing. Background Technology

[0002] With the advancement of motor technology, higher requirements have been placed on the machining precision and welding quality of motor rotor end rings. Medium-frequency brazing, due to its advantages such as a small heat-affected zone, fast welding speed, and high welding quality, has gradually become a commonly used welding technology in motor manufacturing.

[0003] In existing technologies, automatic gap filling of motor rotor end rings cannot flexibly adapt to rotors and end rings of different sizes and shapes. This limitation may cause the rotor and end rings to be affected by external forces during the brazing process, resulting in displacement. This displacement not only affects the accuracy of welding but may also lead to a decrease in weld quality, causing insufficient weld strength or potential hazards. Therefore, we propose an automatic gap filling device for motor rotor end rings based on medium-frequency brazing. Utility Model Content

[0004] The purpose of this invention is to provide an automatic filler device for motor rotor end rings based on medium frequency brazing. Through the design of components such as the sliding arc groove, clamping frame and fine adjustment column of the multi-point positioning clamping mechanism, the invention solves the problem of poor weld quality caused by inaccurate positioning and unstable clamping in the prior art.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to an automatic gap-filling device for motor rotor end rings based on medium-frequency brazing. It includes a medium-frequency power supply box and a placement platform. The placement platform is located to the right of the medium-frequency power supply box. A heating coil is disposed on the side of the medium-frequency power supply box, and the heating contact surface of the heating coil is fixedly connected to the top of the placement platform. A multi-point positioning and clamping mechanism is disposed inside the placement platform. The multi-point positioning and clamping mechanism includes a motor, which is fixedly connected inside the placement platform. The output shaft of the motor is fixedly connected to a rotating shaft, and a small gear is fixedly connected to the circumferential surface of the rotating shaft. A large gear is rotatably connected to the inner top of the platform. A sliding arc groove is opened on the top of the large gear. A sliding groove is opened on the top of the platform. A clamping frame is slidably connected inside the sliding groove. A sliding column is fixedly connected to the bottom of the clamping frame. The sliding column is slidably connected to the inside of the sliding arc groove. A fine adjustment column is threadedly connected to the side of the clamping frame. A handwheel is fixedly connected to one end of the fine adjustment column. The purpose is to stabilize the rotor and end ring, ensure accurate positioning during the welding process, and allow the operator to make precise adjustments to the individual clamping frames when dealing with irregular shapes.

[0007] Furthermore, the small gear meshes with the large gear, and a positioning cone is fixedly connected to the end of the fine-tuning column away from the handwheel. The purpose of this is to ensure that the rotation of the small gear can drive the large gear to rotate.

[0008] Furthermore, the number of the sliding arc groove, clamping frame and sliding column is four, and they are arranged in a circumferential array along the circumference of the placement platform. The purpose is to position the motor rotor in multiple ways and improve the clamping effect.

[0009] Furthermore, a cooling mechanism is provided inside the placement platform. The cooling mechanism includes a suction box, which is fixedly connected inside the placement platform. A conveying pipe is fixedly inserted through the side of the suction box, and a blowing plate is fixedly inserted through the end of the conveying pipe away from the side of the suction box. A fan is provided on the side of the suction box, and a control shaft is rotatably connected to the side of the fan. A bevel gear is fixedly inserted through the circumference of the control shaft. A support shaft is rotatably connected through the top of the suction box, and a force-bearing plate is fixedly connected to the circumference of the support shaft. A push plate is fixedly connected to the circumference of the rotating shaft, and a bevel gear is fixedly inserted through the circumference of the support shaft. The purpose is to provide air pressure to the brazed material for effective cooling and to reduce weld stress deformation.

[0010] Furthermore, a torsion spring is fixedly connected to the top of the suction box, and the end of the torsion spring away from the top of the suction box is fixedly connected to the circumferential surface of the support shaft. The purpose of this is to ensure that the support shaft can automatically reset and reduce manual intervention.

[0011] Furthermore, the first bevel gear and the second bevel gear mesh with each other, the diameter of the first bevel gear is smaller than the diameter of the second bevel gear, and the side of the force plate is located on the displacement trajectory of the push plate. The purpose is to ensure that the rotation of the second bevel gear can drive the first bevel gear to rotate, and to ensure that the movement of the push plate can push the force plate.

[0012] This utility model has the following beneficial effects:

[0013] This invention utilizes the interplay of components such as the sliding arc grooves, clamping frame, and fine-tuning columns in a multi-point positioning clamping mechanism. During automatic seam filling between the motor rotor and end ring, the operator places the rotor and end ring on a placement table and starts the motor to drive the rotating shaft. The shaft drives a small gear to rotate, which in turn slowly rotates through meshing with a large gear. The large gear, via four sliding arc grooves, drives four sliding columns to move along the contour line, causing the clamping frame to move linearly within the grooves. This, in turn, moves the four fine-tuning columns, causing the positioning cone to contact the motor rotor and complete the clamping. For irregularly shaped motor rotors, the operator can observe the clamping process and adjust the fine-tuning columns using a handwheel for precise positioning. After clamping, a medium-frequency power supply box is used to heat the heating coil, rapidly increasing the temperature of the contact surface between the end ring and the rotor, thereby improving welding effect and efficiency.

[0014] This invention utilizes the coordinated operation of components such as the suction box, blowing plate, and bevel gear one in the cooling mechanism. After the multi-point positioning and clamping mechanism completes its work, the reset of the rotating shaft drives the push plate to rotate, pushing the force plate. The force plate rotates through the support shaft, which in turn drives the bevel gear two to rotate. Since bevel gear two is larger than bevel gear one, after meshing with it, bevel gear one rotates rapidly, further driving the control shaft to rotate at high speed, causing the fan blades to rotate rapidly, generating air pressure. The airflow enters the delivery pipe through the suction box and cools the brazed motor rotor end ring through the blowing plate, reducing weld stress deformation and ensuring weld stability.

[0015] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional structural diagram of the intermediate frequency power supply box of this utility model;

[0018] Figure 2 This is a three-dimensional cross-sectional structural diagram of the placement platform of this utility model;

[0019] Figure 3 This is a three-dimensional cross-sectional structural schematic diagram of the cooling mechanism of this utility model;

[0020] Figure 4 For this utility model Figure 2 A three-dimensional magnified structural diagram of A in the diagram;

[0021] Figure 5 For this utility model Figure 3 A three-dimensional magnified structural diagram of B;

[0022] Figure 6 This is a three-dimensional cross-sectional structural diagram of the sliding arc groove of this utility model.

[0023] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0024] 1. Medium frequency power supply box; 2. Placement platform; 3. Heating coil; 4. Multi-point positioning clamping mechanism; 41. Motor; 42. Rotating shaft; 43. Small gear; 44. Large gear; 45. Sliding arc groove; 46. Slide groove; 47. Clamping frame; 48. Sliding column; 49. Fine adjustment column; 410. Handwheel; 411. Positioning cone; 5. Cooling mechanism; 51. Suction box; 52. Conveying pipe; 53. Blowing plate; 54. Fan; 55. Control shaft; 56. Bevel gear one; 57. Support shaft; 58. Force plate; 59. Push plate; 510. Bevel gear two; 511. Torsion spring. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1-6 This utility model relates to an automatic gap-filling device for motor rotor end rings based on medium-frequency brazing. It includes a medium-frequency power supply box 1 and a placement platform 2. The placement platform 2 is located to the right of the medium-frequency power supply box 1. A heating coil 3 is arranged on the side of the medium-frequency power supply box 1, and the heating contact surface of the heating coil 3 is fixedly connected to the top of the placement platform 2. A multi-point positioning and clamping mechanism 4 is arranged inside the placement platform 2. The multi-point positioning and clamping mechanism 4 includes a motor 41, which is fixedly connected inside the placement platform 2. The output shaft of the motor 41 is fixedly connected to a rotating shaft 42, and a small gear 43 is fixedly connected to the circumferential surface of the rotating shaft 42. The inner top of the placement platform 2... A large gear 44 is rotatably connected, and a sliding arc groove 45 is opened on the top of the large gear 44. A sliding groove 46 is opened on the top of the placement platform 2. A clamping frame 47 is slidably connected inside the sliding groove 46. A sliding column 48 is fixedly connected to the bottom of the clamping frame 47. The sliding column 48 is slidably connected to the inside of the sliding arc groove 45. A fine adjustment column 49 is threadedly connected to the side of the clamping frame 47. A handwheel 410 is fixedly connected to one end of the fine adjustment column 49. The purpose of the handwheel 410 is to stabilize the rotor and the end ring, ensure accurate positioning during the welding process, and allow the operator to make precise adjustments to the individual clamping frame 47 when dealing with irregular shapes.

[0027] As shown in the figure, the small gear 43 and the large gear 44 mesh with each other, and the end of the fine adjustment column 49 away from the handwheel 410 is fixedly connected to the positioning cone 411. The purpose is to ensure that the rotation of the small gear 43 can drive the large gear 44 to rotate.

[0028] As shown in the figure, there are four sliding arc grooves 45, clamping frames 47 and sliding columns 48, which are arranged in a circular array along the circumference of the placement platform 2. The purpose is to position the motor rotor in multiple ways and improve the clamping effect.

[0029] As shown in the figure, a cooling mechanism 5 is installed inside the placement platform 2. The cooling mechanism 5 includes a suction box 51, which is fixedly connected inside the placement platform 2. A conveying pipe 52 is fixedly inserted through the side of the suction box 51. A blowing plate 53 is fixedly inserted through the end of the conveying pipe 52 away from the side of the suction box 51. A fan 54 is installed on the side of the suction box 51. A control shaft 55 is rotatably connected to the side of the fan 54. A bevel gear 56 is fixedly inserted through the circumference of the control shaft 55. A support shaft 57 is rotatably connected through the top of the suction box 51. A force plate 58 is fixedly connected to the circumference of the support shaft 57. A push plate 59 is fixedly connected to the circumference of the rotating shaft 42. A bevel gear 510 is fixedly inserted through the circumference of the support shaft 57. The purpose is to provide air pressure to the brazed material for effective cooling and reduce weld stress deformation.

[0030] As shown in the figure, a torsion spring 511 is fixedly connected to the top of the suction box 51. The end of the torsion spring 511 away from the top of the suction box 51 is fixedly connected to the circumferential surface of the support shaft 57. The purpose is to ensure that the support shaft 57 can automatically reset and reduce manual intervention.

[0031] As shown in the figure, bevel gear 1 56 and bevel gear 2 510 mesh with each other. The diameter of bevel gear 1 56 is smaller than the diameter of bevel gear 2 510. The side of the force plate 58 is located on the displacement trajectory of the push plate 59. The purpose is to ensure that the rotation of bevel gear 2 510 can drive bevel gear 1 56 to rotate, and to ensure that the movement of push plate 59 can push the force plate 58.

[0032] A specific application of this embodiment is as follows: When automatic gap filling is required between the motor rotor and the end ring, the worker places the motor rotor end ring on the top of the placement platform 2, and then starts the motor 41. The output shaft of the motor 41 drives the rotating shaft 42 to rotate. The rotation of the rotating shaft 42 drives the small gear 43 to rotate. Through the meshing of the small gear 43 and the large gear 44, the rotation of the small gear 43 drives the large gear 44 to rotate slowly. During the rotation of the large gear 44, the four sliding arc grooves 45 drive the four sliding columns 48 to move along the contour curve. The moving clamping frame 47 moves linearly inside the slide groove 46, thereby moving the four fine adjustment columns 49 so that the positioning cone 411 touches the motor rotor, thus completing the clamping. When facing an irregularly shaped motor rotor, the operator can observe when the positioning cone 411 touches the motor rotor. By rotating the fine adjustment column 49 through the handwheel 410, the untouched positioning cone 411 is adjusted so that it touches the motor rotor. After clamping, the heating coil 3 is heated by the medium frequency power supply box 1 to provide effective energy to rapidly heat up the contact surface between the end ring and the rotor.

[0033] After the multi-point positioning clamping mechanism 4 completes its work, the rotating shaft 42 drives the push plate 59 to rotate during its reset rotation. The push plate 59 pushes the force plate 58 during its rotation, and the force plate 58 rotates through the support shaft 57. The rotation of the support shaft 57 drives the second bevel gear 510 to rotate. The second bevel gear 510 meshes with the first bevel gear 56. At the same time, the second bevel gear 510 is larger than the first bevel gear 56, which causes the second bevel gear 510 to rotate and drive the first bevel gear 56 to rotate rapidly. The rapid rotation of the first bevel gear 56 drives the control shaft 55 to rotate rapidly, which in turn causes the fan blades inside the fan 54 to rotate rapidly, generating air pressure. This causes the airflow to enter the suction box 51 and then enter the delivery pipe 52. The airflow plate 53 cools down the brazed motor rotor end ring, reducing weld stress deformation and forming a stable weld.

[0034] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0035] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An automatic gap-filling device for motor rotor end rings based on medium-frequency brazing, characterized in that, It includes an intermediate frequency power supply box (1) and a placement platform (2). The placement platform (2) is located to the right of the intermediate frequency power supply box (1). A heating coil (3) is provided on the side of the intermediate frequency power supply box (1). The heating contact surface of the heating coil (3) is fixedly connected to the top of the placement platform (2). A multi-point positioning clamping mechanism (4) is provided inside the placement platform (2). The multi-point positioning clamping mechanism (4) includes a motor (41), which is fixedly connected inside the placement platform (2). The output shaft of the motor (41) is fixedly connected to a rotating shaft (42). A small gear (43) is fixedly connected to the circumferential surface of the rotating shaft (42). A large gear (44) is rotatably connected to the inner top of the placement platform (2). A sliding arc groove (45) is provided on the top of the large gear (44). A sliding groove (46) is provided on the top of the placement platform (2). A clamping frame (47) is slidably connected inside the sliding groove (46). A sliding column (48) is fixedly connected to the bottom of the clamping frame (47). The sliding column (48) is slidably connected to the inside of the sliding arc groove (45). A fine adjustment column (49) is threadedly connected to the side of the clamping frame (47). A handwheel (410) is fixedly connected to one end of the fine adjustment column (49).

2. The automatic gap-filling device for motor rotor end rings based on medium-frequency brazing according to claim 1, characterized in that, The small gear (43) meshes with the large gear (44), and the fine adjustment column (49) is fixedly connected to a positioning cone (411) at the end away from the handwheel (410).

3. The automatic gap-filling device for motor rotor end rings based on medium-frequency brazing according to claim 2, characterized in that, The number of the sliding arc groove (45), clamping frame (47) and sliding column (48) is four, and they are arranged in a circular array along the circumference of the placement platform (2).

4. The automatic gap-filling device for motor rotor end rings based on medium-frequency brazing according to claim 3, characterized in that, The placement platform (2) is equipped with a cooling mechanism (5). The cooling mechanism (5) includes a suction box (51). The suction box (51) is fixedly connected to the inside of the placement platform (2). A conveying pipe (52) is fixedly passed through the side of the suction box (51). A blower plate (53) is fixedly passed through the end of the conveying pipe (52) away from the side of the suction box (51). A fan (54) is provided on the side of the suction box (51). A control shaft (55) is rotatably connected to the side of the fan (54). A bevel gear (56) is fixedly passed through the circumferential surface of the control shaft (55). A support shaft (57) is passed through and rotatably connected to the top of the suction box (51). A force plate (58) is fixedly connected to the circumferential surface of the support shaft (57). A push plate (59) is fixedly connected to the circumferential surface of the rotating shaft (42). A bevel gear (510) is fixedly passed through the circumferential surface of the support shaft (57).

5. An automatic gap-filling device for motor rotor end rings based on medium-frequency brazing according to claim 4, characterized in that, A torsion spring (511) is fixedly connected to the top of the suction box (51), and one end of the torsion spring (511) away from the top of the suction box (51) is fixedly connected to the circumferential surface of the support shaft (57).

6. The automatic gap-filling device for motor rotor end rings based on medium-frequency brazing according to claim 5, characterized in that, The first bevel gear (56) meshes with the second bevel gear (510). The diameter of the first bevel gear (56) is smaller than the diameter of the second bevel gear (510). The side of the force plate (58) is located on the displacement trajectory of the push plate (59).

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