Motor stator coil shaping device

Abstract

The utility model discloses a motor stator coil shaping device which comprises a machine table, telescopic pressing block assemblies are oppositely arranged on the machine table, shaping arc openings matched with the outer wall of a stator are formed in pressing blocks of the telescopic pressing block assemblies, and an electric rotating disc is arranged between the two shaping arc openings. A positioning column matched with an inner opening of a stator is arranged on the disc face of the electric rotary disc, a first air cylinder is arranged above the electric rotary disc, the telescopic end of the first air cylinder is vertically downward and rotationally provided with a pressing head, a pressing disc is arranged between the pressing head and the positioning column, and a plurality of wire passing openings facilitating outgoing wires to penetrate out are formed in the circumference of the pressing disc at intervals. And when the wire is tightened, the pressure plate is clamped between the pressure head and the stator. According to the utility model, the stator coil can be shaped, the stator coil and a leading-out wire of a stator winding can be prevented from being extruded together in the shaping process, the leading-out wire does not need to be separated again after the shaping is finished, and the shaping efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of motor manufacturing, in particular to a motor stator coil shaping device. Background Art

[0002] Currently, in the manufacture of motors, copper wire is wound around the stator core to form a coil. After the coil is wound, the stator coil needs to be shaped to avoid contact between the stator coil and components such as the stator or motor end cover, and to ensure the slot fill rate.

[0003] The traditional stator coil shaping method is that the operator puts the workpiece into the shaping die and presses the switch to perform stamping shaping. When the stamping equipment reaches the preset time, it automatically stops and the stamping shaping is completed. Then the operator takes out the workpiece to complete the entire shaping process. In the existing shaping equipment, the pressing plate is a whole plate fixedly connected to the stamping cylinder. During the shaping process, the pressing plate will squeeze the lead wire of the stator winding together, so that the lead wire is bent and pressed tightly on the stator. After the shaping is completed, manpower is required to separate the lead wire again, which will increase the time and labor cost of the shaping process and affect production efficiency. Utility Model Content

[0004] The utility model aims to provide a motor stator coil shaping device, which can shape the stator coil, avoid squeezing the lead wires of the stator winding together during the shaping process, and do not need to separate the lead wires again after the shaping is completed, thereby improving the shaping efficiency.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a motor stator coil shaping device, including a machine platform, on which telescopic pressure block assemblies are relatively arranged, and the pressure blocks of the telescopic pressure block assembly are provided with shaping arc openings matching with the outer wall of the stator, and an electric turntable is arranged between the two shaping arc openings, and the disk surface of the electric turntable is provided with a positioning column matching with the inner opening of the stator, and a first cylinder is arranged above the electric turntable, and the telescopic end of the first cylinder is vertically downward and rotatably provided with a pressure head, and a pressure plate is arranged between the pressure head and the positioning column, and a plurality of wire passing openings are arranged at intervals on the circumference of the pressure plate for facilitating the lead-out wire to pass through, and the pressure plate is clamped between the pressure head and the stator when tightening the wire.

[0006] A further improved solution of the utility model is that the telescopic pressure block assembly includes a second cylinder relatively arranged on the machine platform, and two pressure blocks are respectively arranged on opposite ends of the two second cylinders.

[0007] A further improvement of the utility model is that the pressing block is located above the disc surface of the electric turntable and there is a movement gap between the pressing block and the pressed disc.

[0008] A further improvement of the utility model is that a positioning hole is provided at the center of the pressure plate, and a positioning protrusion is provided at the lower end of the pressure head to be engaged with the positioning hole.

[0009] A further improvement of the utility model is that the positioning protrusion includes a column arranged on the lower end surface of the pressure head, the diameter of the column is matched with the diameter of the positioning hole and a cone is provided at the lower end thereof, and the cone head of the cone faces downward.

[0010] A further improvement of the present invention is that the wire passing opening is provided with five paths.

[0011] The beneficial effects of the utility model are:

[0012] The utility model can shape the stator coil by cooperating with the pressing block, the rotating disk and the pressing plate, and can pass the lead wires out separately by arranging the wire passing opening on the pressing plate, so that the pressing plate pressed down will not squeeze the lead wires, and can avoid squeezing the lead wires of the stator winding together during the shaping process, and there is no need to separate the lead wires again after the shaping is completed, thereby improving the shaping efficiency.

[0013] The pressure plate and the pressure head of the utility model are of split structure. Compared with the prior art in which the pressure plate is fixedly connected to the telescopic end of the cylinder, the pressure plate of the utility model can be adjusted according to the position of the stator lead-out wires placed, so that the wire passing opening on the pressure plate is aligned with the lead-out wires, which is easy to adjust and can be replaced and selected according to the number of lead-out wires of different stators.

[0014] The utility model cooperates with a rotating disk through two pressing blocks, and the two pressing blocks shape the stator through their shaping arc openings. After each pressing, they are separated and then the rotating disk rotates a certain angle, and the two pressing blocks are pressed again. This is repeated to achieve the angle rotation and pressing shaping of the rotor coil for a set number of times, so that the outer periphery of the stator can be shaped to ensure its roundness.

[0015] The positioning protrusion of the utility model includes a column arranged on the lower end surface of the pressure head. The diameter of the column is adapted to the diameter of the positioning hole and a cone is provided at its lower end. The cone is used for guidance to facilitate the alignment and clamping of the pressure head and the turntable, so that the pressure head continues to press down from the center of the turntable to ensure the uniformity of the downward pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the main structure of the utility model.

[0017] Figure 2 It is a schematic top view of the pressing block structure of the utility model.

[0018] Figure 3 It is a schematic top view of the pressure plate structure of the utility model.

[0019] In the figure, 1-machine table, 2-pressing block, 3-shaping arc mouth, 4-electric turntable, 5-positioning column, 6-first cylinder, 7-pressing head, 8-pressing plate, 9-wire mouth, 10-second cylinder, 11-positioning hole, 12-column, 13-cone. DETAILED DESCRIPTION

[0020] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0021] Example 1: Combination Figures 1 to 3 It can be known that a motor stator coil shaping device includes a machine table 1, on which a telescopic pressure block assembly is relatively arranged, and a pressure block 2 of the telescopic pressure block assembly is provided with a shaping arc opening 3 that matches the outer wall of the stator, an electric turntable 4 is arranged between the two shaping arc openings 3, and the disk surface of the electric turntable 4 is provided with a positioning column 5 that matches the inner opening of the stator, and a first cylinder 6 is arranged above the electric turntable 4, and a pressure head 7 is arranged vertically downward and rotatably at the telescopic end of the first cylinder 6, and a pressure plate 8 is arranged between the pressure head 7 and the positioning column 5, and a plurality of wire openings 9 are arranged at intervals on the circumference of the pressure plate 8 for facilitating the lead wire to pass through, and the pressure plate 8 is clamped between the pressure head 7 and the stator when tightening the wire. There are at least two wire openings 9, and preferably, there are five wire openings 9. The curvature of the shaping arc opening 3 is adapted to the stator diameter of standard specifications.

[0022] The telescopic pressing block assembly comprises a second cylinder 10 arranged relatively on the machine platform 1 , and two pressing blocks 2 are respectively arranged on opposite ends of the two second cylinders 10 .

[0023] The pressing block 2 is located above the surface of the electric turntable 4 and there is a movement gap between the pressing block 2 and the pressed plate 8 .

[0024] A positioning hole 11 is provided at the center of the pressure plate 8, and a positioning protrusion is provided at the lower end of the pressure head 7 to engage with the positioning hole 11. The positioning hole 11 is not connected to the wire passing port 9.

[0025] The positioning protrusion includes a column 12 arranged on the lower end surface of the pressure head 7. The diameter of the column 12 is matched with the diameter of the positioning hole 11 and a cone 13 is arranged at the lower end thereof, with the cone head of the cone 13 facing downward.

[0026] The working principle of a motor stator coil shaping device provided by the utility model is as follows: when in use, the stator sleeve is fixed on the positioning column 5, the pressure plate 8 is placed on the stator, the lead wire of the stator passes through the wire passing port 9 of the pressure plate 8, the first cylinder 6 is started, the pressure head 7 is pressed down and its positioning protrusion is engaged with the positioning hole 11 of the pressure plate 8, the pressure plate 8 applies a certain force to squeeze the stator coil to shape it, and the second cylinder 10 is started. The two second cylinders 10 act synchronously so that the two pressure blocks 2 use their shaping arc openings 3 to squeeze the stator. After each squeezing, the two pressure blocks 2 are separated, and then the electric turntable 4 rotates a certain angle, and the two pressure blocks 2 are pressed together again, and this is repeated to achieve the set number of angle rotations and pressing shaping of the rotor coil, so that the outer periphery of the stator can be shaped to ensure its roundness.

[0027] In the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model. Any equivalent structure or equivalent process transformation made using the contents of the utility model specification and the accompanying drawings, or directly or indirectly used in other related technical fields, are similarly included in the patent protection scope of the present utility model.

Claims

1. A motor stator coil shaping device, characterized in that: The invention comprises a machine platform (1), wherein a telescopic pressure block assembly is arranged on the machine platform (1), a pressure block (2) of the telescopic pressure block assembly is provided with a shaping arc opening (3) matching with the outer wall of the stator, an electric turntable (4) is arranged between the two shaping arc openings (3), a plate surface of the electric turntable (4) is provided with a positioning column (5) matching with the inner opening of the stator, a first cylinder (6) is arranged above the electric turntable (4), a pressure head (7) is arranged at the telescopic end of the first cylinder (6) vertically downward and rotatably, a pressure plate (8) is arranged between the pressure head (7) and the positioning column (5), a plurality of wire passing openings (9) are arranged at intervals on the circumference of the pressure plate (8) for facilitating the lead wire to pass through, and when tightening the wire, the pressure plate (8) is clamped between the pressure head (7) and the stator.

2. The motor stator coil shaping device according to claim 1, characterized in that: The telescopic pressure block assembly comprises a second cylinder (10) arranged relative to the machine platform (1), and two pressure blocks (2) are respectively arranged on opposite ends of the two second cylinders (10).

3. The motor stator coil shaping device according to claim 1, characterized in that: The pressing block (2) is located above the disk surface of the electric turntable (4) and there is a movement gap between the pressing block (2) and the pressed disk (8).

4. The motor stator coil shaping device according to claim 1, characterized in that: A positioning hole (11) is provided at the centre of the pressure plate (8), and a positioning protrusion which is engaged with the positioning hole (11) is provided at the lower end of the pressure head (7).

5. The motor stator coil shaping device according to claim 4, characterized in that: The positioning protrusion comprises a column (12) arranged on the lower end surface of the pressure head (7), the diameter of the column (12) being matched to the diameter of the positioning hole (11) and a cone (13) being provided at its lower end, with the cone head of the cone (13) facing downwards.

6. The motor stator coil shaping device according to claim 1, characterized in that: The wire passing openings (9) are provided with five.

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