Rotating device for spot welding of stator iron core group
By designing an automated rotating device to fully automatic welding of the wire ears of the stator core group, the problems of high labor intensity, high cost and poor results of manual welding are solved, and high-efficiency production and precise welding effects are achieved.
Patent Information
- Application Number
- CN202420932338.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-30
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-04-30
AI Technical Summary
In the prior art, manual welding is labor-intensive, high cost, poor effect and low production efficiency during spot welding of stator core sets, resulting in poor conductivity between the conductors and the wire ears, affecting the power and life of the motor.
A rotating device including platform panel, rotating base, lifting base, horizontal rotation shaft and vertical slider is designed. Through automatic reciprocating motion and angular rotation, the wire ears of the iron core group are fully automatic, combined with transmission. The structure and damping friction layer improve the accuracy and efficiency of welding.
It achieves high degree of automation, convenient control, and good work continuity, significantly improves production efficiency, reduces labor costs, shortens the operating production line, and improves the accuracy of line and ear position conversion.
Smart Images
Figure CN222176437U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field related to stator manufacturing, in particular to a rotating device for spot welding of a stator core assembly. Background Art
[0002] The stator core group is wound with coils, and the wire ears are injection molded on the end face of the core group and distributed in a circular ring shape at the edge of the end face of the core group. Poor conductivity between the wire and the wire ears will cause abnormal motor power and reduced life. Therefore, good conductivity between the wire and the wire ears must be ensured during the stator processing. In the industry, the wire is wound around the wire ears, and then the wire ears are pressurized and heated to deform and weld them to the core group. At the same time, the high temperature vaporizes the paint on the coil and is squeezed out, achieving permanent connection and conduction between the wire and the wire ears.
[0003] In the prior art, the welding and fixing operation is mainly performed manually. The stator is fixed by a simple fixture and then welded manually. This is not only labor-intensive and labor-intensive, but also unstable, with poor welding effect and low production efficiency.
[0004] In summary, there is a need for a rotating device for spot welding of a stator core assembly that can improve production efficiency. Utility Model Content
[0005] The utility model aims to overcome the shortcomings of manual welding in the prior art, namely, high labor intensity, high labor cost, unstable welding, poor welding effect and low production efficiency, and provides a rotating device for spot welding of stator core assemblies which can improve production efficiency.
[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0007] A rotating device for spot welding of a stator core assembly comprises a platform panel, a rotating base and a lifting base are fixed on the platform panel, a horizontal rotating shaft 1 is installed on the rotating base, the horizontal rotating shaft 1 is rotatably connected to the rotating base, a fixture is fixed to the end of the horizontal rotating shaft 1, a vertical slider is installed on the lifting base, the vertical slider is slidably connected to the lifting base up and down, and a welding gun is installed on the vertical slider.
[0008] Before processing, the core group is fixed on the fixture, and the wire ears on it are located directly below the welding gun. During processing, the vertical slider automatically drives the welding gun on it to move up and down to spot weld the wire ears on the core group. At the same time, the horizontal shaft automatically drives the core group on the fixture to rotate continuously to switch the wire ears in different positions, so as to cooperate with each spot welding of the welding gun, thereby realizing the full-automatic welding of all wire ears on the core group, with a high degree of automation, more convenient control, good work continuity, high processing efficiency, and at the same time reducing labor costs, shortening the production line, and greatly improving production efficiency.
[0009] Preferably, a vertical plate is fixed on the lifting base, and a vertical limiting slide groove matching the vertical slider is provided on the vertical plate, and the vertical slider is installed in the vertical limiting slide groove and is slidably connected thereto up and down. A horizontal rotating shaft 2 is also installed on the lifting base, and the horizontal rotating shaft 2 is rotatably connected to the lifting base, and a driving cam is fixed to the end of the horizontal rotating shaft 2, and the driving cam is located directly above the vertical slider, and the outer edge of the driving cam contacts the top of the vertical slider. A return spring is also provided in the vertical limiting slide groove, one end of the return spring is connected to the end wall of the vertical limiting slide groove, and the other end of the return spring is connected to the vertical slider, and the horizontal rotating shaft 1 and the horizontal rotating shaft 2 are connected by a transmission structure 1. During processing, the horizontal rotating shaft 2 drives the driving cam to rotate to push the vertical slider below to move, and then the reset spring exerts elastic force on the vertical slider, thereby achieving the purpose of controlling the vertical slider to move back and forth, so that the welding gun on the vertical slider can spot weld the wire ears on the core group. The structure is simple and the control is convenient. The design of the vertical limit slide groove facilitates the installation of the vertical slider on the vertical plate, and at the same time guides the movement of the vertical slider, thereby improving the movement accuracy. When the horizontal rotating shaft 2 rotates, the transmission structure 1 drives the horizontal rotating shaft 1 and the fixture tooling thereon to rotate synchronously, thereby driving the automatic conversion of wire ears at different positions on the core group, so as to cooperate with each drop of the welding gun, thereby realizing the fully automatic welding of all wire ears on the core group.
[0010] Preferably, the transmission structure 1 includes a fixed seat fixed on the platform panel, a vertical rotating shaft is installed on the fixed seat, a bevel gear 1 and a turntable 1 are sleeved and fixed on the vertical rotating shaft, a bevel gear 2 is sleeved and fixed on the horizontal rotating shaft 2, the bevel gear 1 and the bevel gear 2 are meshed, a turntable 2 is sleeved and fixed on the horizontal rotating shaft 1, the turntable 1 is placed on the side of the turntable 2 and the two are perpendicular to each other, a driving lever is fixed on the outer wall of the turntable 1, a plurality of driven levers corresponding to the driving lever are fixed on the outer wall of the turntable 2, and the driven levers are annular and radial and are evenly distributed on the outer wall of the turntable 2. During processing, the motor drives the vertical shaft and the turntable 1 on it to rotate. On the one hand, the horizontal shaft 2 is driven to rotate through the cooperation of bevel gear 1 and bevel gear 2. On the other hand, whenever the driving lever on the turntable 1 rotates to the position of the driven rod, it will intersect with one of the driven rods, thereby pushing the driven rod to rotate at an angle, and then driving the turntable 2 and the horizontal shaft 1 to rotate at an angle synchronously, thereby driving the automatic conversion of wire ears at different positions on the core group, thereby cooperating with each drop of the welding gun, thereby realizing fully automatic welding of all wire ears on the core group.
[0011] Preferably, the fixture is fixed to one end of the horizontal rotating shaft 1, and a limited rotation block is fixed to the other end of the horizontal rotating shaft 1. The fixed seat is provided with a rotation block groove matching the limited rotation block. The limited rotation block is placed in the rotation block groove and is rotatably connected thereto. A damping friction layer is fixed to the limited rotation block, and the damping friction layer is coated on the outer side wall of the limited rotation block. The outer surface of the damping friction layer is in contact with the inner side wall of the rotation block groove. Through the design of the damping friction layer, the situation that the horizontal rotating shaft 1 is excessively deflected due to inertia can be avoided, and the position conversion accuracy between different wire ears is improved.
[0012] Preferably, the damping friction layer is made of silicone rubber, which has a good damping effect.
[0013] Preferably, a vertical avoidance groove is provided at the bottom of the vertical slider, the welding gun is placed in the vertical avoidance groove and connected to the vertical avoidance groove by sliding up and down, a spot welding head is installed at the bottom of the welding gun, the spot welding head passes through the opening of the vertical avoidance groove and is located outside the vertical avoidance groove, a sponge layer is provided inside the vertical avoidance groove, one side of the sponge layer is fixed to the bottom surface of the vertical avoidance groove, and the other side of the sponge layer is fixed to the welding gun. When the welding gun moves downward with the vertical slider to spot weld the wire ear, the design of the sponge layer can well avoid the situation where the spot welding head and the wire ear are damaged due to excessive extrusion contact.
[0014] The beneficial effects of the utility model are: high degree of automation, more convenient control, good working continuity, high processing efficiency, while reducing labor costs, shortening the operation production line, and greatly improving production efficiency; simple structure, convenient control; improved movement accuracy; improved position conversion accuracy between different wire ears; good damping effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a structural schematic diagram of the utility model;
[0016] Figure 2 yes Figure 1 The enlarged view of point A in the middle;
[0017] Figure 3 It is a side view of a vertical plate;
[0018] Figure 4 It is a transmission diagram of the horizontal rotating shaft 1 and the vertical rotating shaft;
[0019] Figure 5 It is a cross-sectional schematic diagram of the limit transfer block installed in the transfer block groove.
[0020] In the figure: 1. platform panel, 2. rotating base, 3. lifting base, 4. horizontal rotating shaft 1, 5. fixture, 6. vertical slide block, 7. welding gun, 8. vertical plate, 9. vertical limit slide groove, 10. horizontal rotating shaft 2, 11. driving cam, 12. reset spring, 13. fixed seat, 14. vertical rotating shaft, 15. bevel gear 1, 16. turntable 1, 17. bevel gear 2, 18. turntable 2, 19. driving lever, 20. driven rod, 21. limit turntable, 22. turntable groove, 23. damping friction layer, 24. sponge layer, 27. vertical avoidance groove, 28. spot welding head. DETAILED DESCRIPTION
[0021] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods.
[0022] like Figure 1-Figure 5 In the described embodiment, a rotating device for spot welding of a stator core assembly includes a platform panel 1, a rotating base 2 and a lifting base 3 are fixed on the platform panel 1, a horizontal rotating shaft 4 is installed on the rotating base 2, the horizontal rotating shaft 4 is rotatably connected to the rotating base 2, a fixture 5 is fixed to the end of the horizontal rotating shaft 4, a vertical slider 6 is installed on the lifting base 3, the vertical slider 6 is slidably connected to the lifting base 3 up and down, and a welding gun 7 is installed on the vertical slider 6.
[0023] A vertical avoidance groove 27 is provided at the bottom of the vertical slider 6, and the welding gun 7 is placed in the vertical avoidance groove 27 and is slidably connected thereto up and down. A spot welding head 28 is installed at the bottom of the welding gun 7, and the spot welding head 28 passes through the opening of the vertical avoidance groove 27 and is located outside the vertical avoidance groove 27. A sponge layer 24 is provided inside the vertical avoidance groove 27, and one side of the sponge layer 24 is fixed on the bottom surface of the vertical avoidance groove 27, and the other side of the sponge layer 24 is fixed on the welding gun 7.
[0024] A vertical plate 8 is fixed on the lifting base 3, and a vertical limit slide groove 9 matching the vertical slider 6 is arranged on the vertical plate 8. The vertical slider 6 is installed in the vertical limit slide groove 9 and is slidably connected thereto up and down. A horizontal rotating shaft 2 10 is also installed on the lifting base 3. The horizontal rotating shaft 2 10 is rotatably connected to the lifting base 3. A driving cam 11 is fixed to the end of the horizontal rotating shaft 2 10. The driving cam 11 is located directly above the vertical slider 6. The outer edge of the driving cam 11 contacts the top of the vertical slider 6. A return spring 12 is also arranged in the vertical limit slide groove 9. One end of the return spring 12 is connected to the end wall of the vertical limit slide groove 9, and the other end of the return spring 12 is connected to the vertical slider 6. The horizontal rotating shaft 1 4 and the horizontal rotating shaft 2 10 are connected through a transmission structure 1.
[0025] The transmission structure 1 includes a fixed base 13 fixed on the platform panel 1, a vertical rotating shaft 14 is installed on the fixed base 13, a bevel gear 15 and a turntable 16 are sleeved and fixed on the vertical rotating shaft 14, a bevel gear 17 is sleeved and fixed on the horizontal rotating shaft 2 10, the bevel gear 15 and the bevel gear 2 17 are meshed, a turntable 2 18 is sleeved and fixed on the horizontal rotating shaft 14, the turntable 16 is placed on the side of the turntable 2 18 and the two are perpendicular to each other, a driving lever 19 is fixed on the outer wall of the turntable 16, and a plurality of driven levers 20 corresponding to the driving lever 19 are fixed on the outer wall of the turntable 2 18, and the driven levers 20 are annular and radial and are evenly distributed on the outer wall of the turntable 2 18.
[0026] The fixture 5 is fixed to one end of the horizontal rotating shaft 4, and a limited rotating block 21 is fixed to the other end of the horizontal rotating shaft 4. A rotating block groove 22 matching the limited rotating block 21 is provided on the fixed seat 13. The limited rotating block 21 is placed in the rotating block groove 22 and is rotatably connected thereto. A damping friction layer 23 is fixed on the limited rotating block 21. The damping friction layer 23 is coated on the outer wall of the limited rotating block 21, and the outer surface of the damping friction layer 23 is in contact with the inner wall of the rotating block groove 22.
[0027] The material of the damping friction layer 23 is silicone rubber.
[0028] During processing, the motor drives the vertical shaft 14 and the turntable 16 thereon to rotate. On the one hand, under the transmission cooperation of the bevel gear 15 and the bevel gear 2 17, the horizontal shaft 2 10 and the driving cam 11 thereon are driven to rotate to push the vertical slider 6 below to move, and then combined with the elastic force of the return spring 12 on the vertical slider 6, the vertical slider 6 is controlled to reciprocate up and down, so that the welding gun 7 on the vertical slider 6 can spot weld the wire ears on the core group. On the other hand, whenever the driving lever 19 on the turntable 16 rotates to the position of the driven rod 20, it will intersect with one of the driven rods 20, thereby pushing the driven rod 20 to rotate at an angle, and then driving the turntable 2 18 and the horizontal shaft 1 4 to rotate at an angle synchronously, thereby driving the automatic conversion of the wire ears at different positions on the core group, so as to cooperate with each drop of the welding gun 7, thereby realizing fully automatic welding of all the wire ears on the core group.
Claims
1. A rotating device for spot welding of stator core assembly, Its characteristics are: The invention comprises a platform panel (1), a rotating base (2) and a lifting base (3) are fixed on the platform panel (1), a horizontal rotating shaft (4) is installed on the rotating base (2), the horizontal rotating shaft (4) and the rotating base (2) are rotatably connected, a fixture (5) is fixed at the end of the horizontal rotating shaft (4), a vertical slider (6) is installed on the lifting base (3), the vertical slider (6) and the lifting base (3) are slidably connected up and down, and a welding gun (7) is installed on the vertical slider (6).
2. A rotating device for spot welding of a stator core assembly according to claim 1, Its characteristics are: A vertical avoidance groove (27) is provided at the bottom of the vertical slide block (6), the welding gun (7) is placed in the vertical avoidance groove (27) and is slidably connected thereto up and down, a spot welding head (28) is installed at the bottom of the welding gun (7), the spot welding head (28) passes through the opening of the vertical avoidance groove (27) and is located outside the vertical avoidance groove (27), a sponge layer (24) is provided inside the vertical avoidance groove (27), one side of the sponge layer (24) is fixed to the bottom surface of the vertical avoidance groove (27), and the other side of the sponge layer (24) is fixed to the welding gun (7).
3. A rotating device for spot welding of a stator core assembly according to claim 1 or 2, Its characteristics are: A vertical plate (8) is fixed on the lifting base (3), and a vertical limit slide groove (9) matching the vertical slider (6) is arranged on the vertical plate (8). The vertical slider (6) is installed in the vertical limit slide groove (9) and is slidably connected thereto up and down. A second horizontal rotating shaft (10) is also installed on the lifting base (3), and the second horizontal rotating shaft (10) is rotatably connected to the lifting base (3). A driving cam (11) is fixed at the end of the second horizontal rotating shaft (10). The cam (11) is located directly above the vertical slider (6), the outer edge of the driving cam (11) is in contact with the top of the vertical slider (6), a return spring (12) is also provided in the vertical limit slide groove (9), one end of the return spring (12) is connected to the end wall of the vertical limit slide groove (9), and the other end of the return spring (12) is connected to the vertical slider (6), and the horizontal rotating shaft 1 (4) and the horizontal rotating shaft 2 (10) are connected via a transmission structure 1.
4. A rotating device for spot welding of a stator core assembly according to claim 3, Its characteristics are: The transmission structure 1 comprises a fixed seat (13) fixed on the platform panel (1), a vertical rotating shaft (14) being mounted on the fixed seat (13), a bevel gear 1 (15) and a turntable 1 (16) being sleeved and fixed on the vertical rotating shaft (14), a bevel gear 2 (17) being sleeved and fixed on the horizontal rotating shaft 2 (10), the bevel gear 1 (15) and the bevel gear 2 (17) being meshed with each other, a turntable 2 (18) being sleeved and fixed on the horizontal rotating shaft 1 (4), the turntable 1 (16) being arranged on the side of the turntable 2 (18) and the two being perpendicular to each other, a driving lever (19) being fixed on the outer wall of the turntable 1 (16), and a plurality of driven levers (20) corresponding to the driving lever (19) being fixed on the outer wall of the turntable 2 (18), the driven levers (20) being annular and radially distributed on the outer wall of the turntable 2 (18) at even intervals.
5. A rotating device for spot welding of a stator core assembly according to claim 4, Its characteristics are: The fixture tooling (5) is fixed to one end of a horizontal rotating shaft (4); a limit rotating block (21) is fixed to the other end of the horizontal rotating shaft (4); a rotating block groove (22) matching the limit rotating block (21) is provided on the fixed seat (13); the limit rotating block (21) is placed in the rotating block groove (22) and is rotatably connected thereto; a damping friction layer (23) is fixed to the limit rotating block (21); the damping friction layer (23) is coated on the outer side wall of the limit rotating block (21); and the outer surface of the damping friction layer (23) is in contact with the inner side wall of the rotating block groove (22).
6. A rotating device for spot welding of a stator core assembly according to claim 5, Its characteristics are: The material of the damping friction layer (23) is silicone rubber.