Base for processing motor stator

Abstract

The utility model belongs to the technical field of motor machining tools, and particularly relates to a base for machining a motor stator. A base for motor stator machining comprises a base body, a rotary table is rotationally connected to the base body, the rotary table is provided with a first annular protrusion extending upwards, and the first annular protrusion defines a receding groove used for receding a coil of a stator winding. The upper end face of the first annular protrusion is used for making contact with the axial end face of a stator iron core. The rotary table is further provided with a positioning column extending upwards, the positioning column is located in the center of the receding groove, and the positioning column is used for penetrating through an inner hole of the stator assembly. The utility model has the advantages that the stator assembly is more stable during rotation, and the stator assembly is prevented from toppling over.

Description

Technical Field

[0001] The utility model belongs to the technical field of motor processing tooling, and in particular relates to a base for motor stator processing. Background Art

[0002] The motor stator mainly includes the stator core and the stator winding. The stator winding has lead wires, and the lead wires of each stator winding are in different circumferential directions. When the lead wires of the stator winding need to be processed, the stator assembly is placed on the pad, and then the lead wires of the stator winding need to be rotated to the processing position. However, directly rotating the stator assembly will cause friction between the enameled wire and the pad below, thereby damaging the enameled wire.

[0003] The Chinese patent application number 202020461062.3 discloses a motor stator processing bracket, comprising: a base plate, a first hole position is opened in the center of the base plate; a turntable, a second hole position corresponding to the first hole position is arranged on the lower end surface of the turntable; a rotating shaft, one end of the rotating shaft is rotatably connected to one of the first hole position and the second hole position, and the other end of the rotating shaft is connected to the other of the first hole position and the second hole position. The upper end surface of the turntable is provided with a stator slot recessed inward. Although the above scheme can realize the rotation of the stator assembly on the turntable in the circumferential direction through the turntable, the operator needs to apply a lateral force to the stator assembly during the rotation, so that the stator assembly drives the turntable to rotate. If the axial length of the stator assembly is long, this will cause the entire stator assembly to tip over when the lateral force is applied, and the stator assembly is unstable when rotating. Utility Model Content

[0004] The utility model aims to provide a motor stator processing base which makes the stator assembly more stable when rotating and prevents the stator assembly from tipping over.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a base for motor stator processing, comprising a base body, a turntable rotatably connected to the base body, the turntable being provided with a first annular protrusion extending upward, the first annular protrusion enclosing a makeshift groove for making way for the wire package of the stator winding, the upper end surface of the first annular protrusion being used to contact the axial end surface of the stator core; the turntable is also provided with a positioning column extending upward, the positioning column is located at the center of the makeshift groove, and the positioning column is used to pass through the inner hole of the stator assembly.

[0006] In actual operation, the stator assembly is sleeved on the positioning column, and the operator can directly move the stator assembly by hand to make the turntable rotate. The clearance groove can make way for the stator winding coil to prevent the coil from being crushed, and the stator core is supported by the first annular protrusion. The positioning column passes through the inner hole of the stator assembly so that when the operator moves the stator assembly, the lateral pushing force will not cause the stator assembly to fall, thereby making the stator assembly more stable during rotation.

[0007] Preferably, the turntable is provided with a second annular protrusion extending downward, and the base body is provided with a matching groove which opens upward and matches with the second annular protrusion, and the second annular protrusion is rotatably connected to the matching groove.

[0008] The second annular protrusion extends into the matching groove, which can prevent the turntable from lateral sliding when the operator applies lateral force, making the turntable more stable.

[0009] Preferably, the base body is provided with an upwardly extending central axis, the central axis is located at the center of the mating groove, the outer side of the central axis and the inner side of the second annular protrusion form a bearing chamber, a bearing is provided in the bearing chamber, and the turntable is supported on the bearing.

[0010] A bearing is arranged between the second annular protrusion and the central axis, thereby realizing a rotational connection between the turntable and the base body, and the structure is more compact.

[0011] Preferably, the bearing is a thrust bearing.

[0012] Thrust bearings can withstand greater axial forces.

[0013] Preferably, the central shaft comprises a thick section and a thin section from bottom to top, a step is formed between the thick section and the thin section, the thrust bearing comprises an upper shaft ring and a lower shaft ring, the inner hole diameter of the upper shaft ring is smaller than the inner hole diameter of the lower shaft ring, the upper shaft ring is provided with an extension portion extending radially inward, and the extension portion is supported on the step.

[0014] The extended portion of the upper shaft ring is supported on the step, which can further withstand greater axial forces and extend the service life of the tooling.

[0015] Preferably, the thrust bearing is clearance-fitted with the central axis and the second annular protrusion, and the turntable and the base body are detachably arranged.

[0016] The clearance fit between the thrust bearing, the central shaft and the second annular protrusion can facilitate the detachable replacement between the turntable and the base body, and replacement of other types of turntables can adapt to the processing of different types of stator assemblies.

[0017] The utility model has the following advantages: the present invention can prevent the stator assembly from tipping over when it is rotated under force by using the positioning column, and the second annular protrusion cooperates with the matching groove so that the turntable does not shake relative to the base, and the rotation is more stable. At the same time, the thrust bearing can withstand greater axial force, thereby increasing the service life of the tooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model.

[0019] Figure 2 It is a structural schematic diagram of the base body.

[0020] Figure 3 This is a schematic diagram of the structure after the bearing is removed from the base body.

[0021] Figure 4 for Figure 1 sectional view of .

[0022] Reference numerals: base body 1 , turntable 2 , first annular protrusion 3 , clearance groove 31 , positioning column 32 , second annular protrusion 33 , matching groove 4 , thrust bearing 5 , extension portion 511 , central axis 6 , thin section 61 , thick section 62 . DETAILED DESCRIPTION

[0023] The utility model is further described below based on the accompanying drawings and specific embodiments.

[0024] like Figure 1 As shown, this embodiment discloses a base for motor stator processing, including a base body 1 and a turntable 2 located on the base body 1 and rotatably connected to the base body 1. The circumferential outer edge of the turntable 2 is circular, and a first annular protrusion 3 extending upward is provided at the circumferential outer edge of the turntable 2. The first annular protrusion 3 encloses a clearance groove 31, and the clearance groove 31 is used to make way for the coil package of the stator assembly. The upper end surface of the first annular protrusion 3 is used to contact the lower end surface of the positioning core of the stator assembly. The turntable 2 is also provided with a positioning column 32 extending upward, and the positioning column 32 is located in the clearance groove 31 and is coaxially arranged with the clearance groove 31.

[0025] like Figure 2 and Figure 4 As shown, the lower end of the turntable 2 is provided with a second annular protrusion 33 extending downward, and the base body 1 is provided with a matching groove 4 which is open upward and is gap-matched with the second annular protrusion 33. The base body 1 is provided with a central shaft 6 extending upward, and the central shaft 6 is located at the center of the matching groove 4. A bearing chamber is formed between the central shaft 6 and the second annular protrusion 33, and a bearing is provided in the bearing chamber, and the bearing is a thrust bearing 5 and the thrust bearing 5 is sleeved on the central shaft 6, and the turntable 2 is supported on the thrust bearing 5.

[0026] like Figure 3 and Figure 4 As shown, the central shaft 5 includes a thick section 62 and a thin section 61 from bottom to top, and a step is formed between the thick section 62 and the thin section 61. The thrust bearing 5 includes an upper shaft ring 51 and a lower shaft ring 52 from top to bottom. The inner hole diameter of the upper shaft ring 51 is smaller than the inner hole diameter of the lower shaft ring 52. The upper shaft ring 51 is arranged on an extension portion 511 extending radially inward, and the axial lower end surface of the extension portion 511 contacts the step so that the upper shaft ring 51 is supported on the step. The inner ring and the outer ring of the thrust bearing 5 are respectively matched with the outer wall of the central shaft 6 and the inner wall of the second annular protrusion 33. In use, the stator assembly will be sleeved on the positioning column 32, and the coil will be located in the clearance groove 31. The operator can directly apply a lateral force to the outer wall of the positioning core, so that the stator core drives the turntable to rotate; the circumferential direction of the lead wire of the stator assembly changes, so that the lead wire of the stator assembly is located at the work station where the lead wire is to be processed in a straight state.

Claims

1. A motor stator processing base, comprising a base body, a turntable rotatably connected to the base body, characterized in that: The turntable is provided with a first annular protrusion extending upward, the first annular protrusion encloses a make way groove for making way for the wire package of the stator winding, and the upper end surface of the first annular protrusion is used to contact the axial end surface of the stator core; the turntable is also provided with a positioning column extending upward, the positioning column is located at the center of the make way groove, and the positioning column is used to pass through the inner hole of the stator assembly.

2. The motor stator processing base according to claim 1, characterized in that: The turntable is provided with a second annular protrusion extending downward, and the base body is provided with a matching groove which opens upward and matches with the second annular protrusion, and the second annular protrusion is rotatably connected to the matching groove.

3. The motor stator processing base according to claim 2, characterized in that: The base body is provided with a central axis extending upward, the central axis is located at the center of the matching groove, the outer side of the central axis and the inner side of the second annular protrusion form a bearing chamber, a bearing is provided in the bearing chamber, and the turntable is supported on the bearing.

4. The motor stator processing base according to claim 3, characterized in that: The bearing is a thrust bearing.

5. The motor stator processing base according to claim 4, characterized in that: The central shaft includes a thick section and a thin section from bottom to top, and a step is formed between the thick section and the thin section. The thrust bearing includes an upper shaft ring and a lower shaft ring. The inner hole diameter of the upper shaft ring is smaller than the inner hole diameter of the lower shaft ring. The upper shaft ring is provided with an extension portion extending radially inward, and the extension portion is supported on the step.

6. The motor stator processing base according to claim 4 or 5, characterized in that: The thrust bearing is clearance-matched with the central axis and the second annular protrusion, and the turntable and the base body are detachably arranged.

Images