A spherical winding jig and its usage method

Abstract

The present invention provides a spherical winding fixture and a usage method. The spherical winding fixture is installed on a winding machine, and a spherical winding stopper is fixed on an outer bracket. The spherical winding fixture is heated to 120 °C, and the starting end of a self-adhesive enameled wire is placed in the opening groove of the starting end column of the spherical winding fixture. The starting end column is placed in the starting end column groove. At this time, the hemispherical body of the spherical winding fixture is in clearance fit with the semi-circular groove of the spherical winding stopper. The winding machine is started to drive the spherical winding fixture to rotate, and the self-adhesive enameled wire is wound around the hemispherical body until it is close to the column body or until the joint of the hemispherical body and the column body. The winding machine is turned off, and the wound hemispherical coil is removed. A layer of glue is coated on the surface of the spherical iron core, and the two hemispherical coils are bonded to the spherical iron core. The tail ends of the two hemispherical coils are welded and insulated to complete the winding of the spherical stator. When winding with this winding fixture, the first-pass qualification rate reaches 98%, and the processing efficiency is increased by 96% compared with the original one.

Description

Technical Field

[0001] The present invention relates to a spherical winding jig and a usage method thereof, which are used for winding the hemispherical coils of a spherical stator. Background Art

[0002] With the development of unmanned aerial vehicles and robots, the demand for spherical motors used for the angle adjustment of the rotors of unmanned aerial vehicles and the rotation of the elbow joints of robots is increasing.

[0003] The stator winding of a spherical motor is usually directly wound on the surface of a spherical iron core, winding from one pole of the spherical iron core to the equator, and then from the equator to the other pole. When winding, a spherical iron core is held manually, and an enameled wire is wound around the surface of the spherical iron core by hand, and glue is used to fix it at any time during winding. When winding from the equator of the spherical iron core to the other pole, due to the influence of the spherical curvature of the spherical iron core, the enameled wire is very likely to slip, resulting in loose winding and low qualification rate, and the winding speed is slow. The single-layer winding time is about 50 minutes. Summary of the Invention

[0004] In view of the current situation of difficult traditional spherical winding, the present invention provides a spherical winding jig and a usage method thereof. After respectively winding two hemispherical coils with a hemispherical winding tooling, the two coils are pasted onto a spherical iron core, and then the leads of the two coils at the equator position of the spherical iron core are welded, so as to complete the entire spherical winding.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is: a spherical winding jig, characterized in that: it includes a spherical winding jig and a spherical winding stopper. One end of the spherical winding jig is a connecting shaft, and the other end is a starting end column. An opening groove is provided on the starting end column. Between the connecting shaft and the starting end column are a column body and a hemispherical body in sequence;

[0006] The connecting shaft, the starting end column, the column body and the hemispherical body are of an integral structure;

[0007] The spherical winding stopper is a rectangular body. A starting end column groove and two fixing holes are horizontally provided on the main surface of the spherical winding stopper. A semi-circular groove is provided on one side surface of the spherical winding stopper, and the semi-circular groove communicates with the starting end column groove;

[0008] The starting end column of the spherical winding jig is arranged in the starting end column groove of the spherical winding stopper with clearance fit, and the hemispherical body of the spherical winding jig is placed in the semi-circular groove of the spherical winding stopper with clearance fit.

[0009] A usage method of a spherical winding jig, characterized in that the steps are as follows:

[0010] Step 1, install the spherical winding jig on a winding machine through the connecting shaft, and fix the spherical winding stopper on an outer bracket through two fixing holes;

[0011] First, use a hot air gun to preheat the spherical winding fixture, heat the spherical winding fixture to 120 °C, place the starting end of the self-adhesive enameled wire in the opening groove of the starting end column of the spherical winding fixture, and at the same time wind several turns of the self-adhesive enameled wire around the starting end column to fix the starting end of the self-adhesive enameled wire on the starting end column;

[0012] Step 2: Move the spherical winding stopper to the spherical winding fixture until the starting end column of the spherical winding fixture with several turns of the head of the self-adhesive enameled wire enters the clearance fit in the middle of the starting end column groove from the starting end column groove on the main surface of the spherical winding stopper. At this time, the hemispherical body of the spherical winding fixture is in clearance fit in the semi-circular groove of the spherical winding stopper, and the clearance distance is 1.5 times the width of the diameter of a single self-adhesive enameled wire;

[0013] Step 3: Start the winding machine to drive the spherical winding fixture to rotate slowly. The self-adhesive enameled wire is wound successively from the end of the starting end column, the pole of the hemispherical body, and the hemispherical body until it is close to the column body or until the joint of the hemispherical body and the column body. Then, turn off the winding machine, remove the spherical winding stopper, and take off the wound hemispherical coil for standby;

[0014] During the winding process, always use a hot air gun to heat the winding part to bond the self-adhesive enameled wires together.

[0015] Due to the function of the spherical winding stopper, the self-adhesive enameled wires will be arranged in sequence during the winding process and will not slip off;

[0016] Step 4: Coat a layer of glue on the surface of the spherical iron core, fasten the two corresponding hemispherical coils on the spherical iron core, bond the two hemispherical coils to the spherical iron core with glue, then weld the leads at the tails of the two hemispherical coils, and use an insulating sleeve for insulation treatment after welding, thus completing the winding of the entire spherical stator.

[0017] The beneficial effects of the present invention are as follows: Compared with the original method of manually winding the spherical stator, which has a slow processing speed and a high defective rate caused by the slipping of the enameled wire when winding from the equator to the pole of the spherical iron core, when using this winding fixture for winding, by separately completing the winding of the two hemispheres and then connecting the two hemispherical coils by welding, the first-pass qualification rate reaches 98%, and the processing efficiency is increased by 96% compared with the original, thereby reducing the technical difficulty of spherical winding. Description of the Drawings

[0018] Figure 1 It is a schematic structural diagram of the spherical winding fixture and the spherical winding stopper of the present invention;

[0019] Figure 2 It is a schematic structural diagram of the spherical winding fixture of the present invention;

[0020] Figure 3Schematic diagram of the spherical winding stopper of the present invention;

[0021] Figure 4 Schematic diagram of the usage state of the present invention;

[0022] Figure 5 Schematic diagram of the hemispherical coil of the present invention;

[0023] Figure 6 Schematic diagram of the structure of the spherical stator of the present invention. Detailed implementation manners

[0024] As Figures 1 to 6 shown, a spherical winding jig includes a spherical winding jig 1 and a spherical winding stopper 2. One end of the spherical winding jig 1 is a connecting shaft 1-1, and the other end is a starting end column 1-2. An opening groove 1-2-1 is provided on the starting end column 1-2. Between the connecting shaft 1-1 and the starting end column 1-2 are a column body 1-3 and a hemispherical body 1-4 in sequence;

[0025] The connecting shaft 1-1, the starting end column 1-2, the column body 1-3 and the hemispherical body 1-4 are of an integral structure;

[0026] The spherical winding stopper 2 is a rectangular body. A starting end column groove 2-1 and two fixing holes 2-2 are horizontally provided on the main surface of the spherical winding stopper 2. A semi-circular groove 2-3 is provided on one side surface of the spherical winding stopper 2, and the semi-circular groove 2-3 communicates with the starting end column groove 2-1;

[0027] The starting end column 1-2 of the spherical winding jig 1 is arranged in the starting end column groove 2-1 of the spherical winding stopper 2 with a clearance fit, and the hemispherical body 1-4 of the spherical winding jig 1 is placed in the semi-circular groove 2-3 of the spherical winding stopper 2 with a clearance fit.

[0028] The clearance distance between the starting end column 1-2 and the starting end column groove 2-1 is 1.5 times the diameter of the winding wire;

[0029] The clearance distance between the hemispherical body 1-4 and the semi-circular groove 2-3 is 1.5 times the diameter of the winding wire.

[0030] A usage method of a spherical winding jig is as follows:

[0031] Step 1, install the spherical winding jig 1 on the winding machine through the connecting shaft 1-1, and fix the spherical winding stopper 2 on the outer bracket through the two fixing holes 2-2;

[0032] First, use a hot air gun to preheat the spherical winding jig 1, heat the spherical winding jig 1 to about 120 °C, place the starting end of the self-adhesive enameled wire 3 in the opening groove 1-2-1 of the starting end column 1-2 of the spherical winding jig 1, and at the same time wind the self-adhesive enameled wire 3 around the starting end column 1-2 for several turns to fix the starting end of the self-adhesive enameled wire 3 on the starting end column 1-2;

[0033] Step 2: Move the spherical wire-winding stopper 2 to the spherical wire-winding fixture 1 until the starting-end column 1-2 of the spherical wire-winding fixture 1 with several turns of the starting end of the self-adhesive enameled wire 3 wound thereon enters the starting-end column groove 2-1 on the main surface of the spherical wire-winding stopper 2 and fits into the clearance in the middle of the starting-end column groove 2-1. At this time, the hemispherical body 1-4 of the spherical wire-winding fixture 1 is placed in the semi-circular groove 2-3 of the spherical wire-winding stopper 2 with clearance fit, and the clearance distance is 1.5 times the width of the diameter of a single self-adhesive enameled wire 3;

[0034] Step 3: Start the winding machine to drive the spherical wire-winding fixture 1 to rotate slowly. The self-adhesive enameled wire 3 is wound successively from the end of the starting-end column 1-2, the pole of the hemispherical body 1-4, and the hemispherical body 1-4 until it is close to the column body 1-3 or until the junction of the hemispherical body 1-4 and the column body 1-3, that is, the equator position. Then turn off the winding machine, remove the spherical wire-winding stopper 2, and take down the wound hemispherical coil 4 for standby;

[0035] During the winding process, always use a hot air gun to heat the winding part to bond the self-adhesive enameled wires 3. Due to the function of the spherical wire-winding stopper 2, the self-adhesive enameled wires 3 will be arranged in sequence during the winding process and will not slip off;

[0036] Step 4: Coat a layer of 401 glue on the surface of the spherical iron core 5, buckle the two corresponding hemispherical coils 4 on the spherical iron core 5, bond the two hemispherical coils 4 to the spherical iron core 5 with 401 glue, then weld the leads at the ends of the two hemispherical coils 4, and use an insulating sleeve 6 for insulation treatment after welding, thus completing the winding of the entire spherical stator.

Claims

1. A method for using a spherical winding fixture, characterized in that, The spherical winding fixture includes a spherical winding fixture (1) and a spherical winding stopper (2). One end of the spherical winding fixture (1) is a connecting shaft (1-1), and the other end is a starting end column (1-2). An opening groove (1-2-1) is provided on the starting end column (1-2). Between the connecting shaft (1-1) and the starting end column (1-2), there are a column body (1-3) and a hemispherical body (1-4) in sequence; The connecting shaft (1-1), the starting end column (1-2), the column body (1-3), and the hemispherical body (1-4) are of an integral structure; The spherical winding stopper (2) is a rectangular body. On the main surface of the spherical winding stopper (2), there is a starting end column groove (2-1) and two fixing holes (2-2) horizontally. On one side surface of the spherical winding stopper (2), there is a semi-circular groove (2-3), and the semi-circular groove (2-3) communicates with the starting end column groove (2-1); The starting end column (1-2) of the spherical winding fixture (1) is arranged in the starting end column groove (2-1) of the spherical winding stopper (2) with clearance fit, and the hemispherical body (1-4) of the spherical winding fixture (1) is placed in the semi-circular groove (2-3) of the spherical winding stopper (2) with clearance fit; The clearance distance between the starting end column (1-2) and the starting end column groove (2-1) is 1.5 times the diameter of the winding wire; The clearance distance between the hemispherical body (1-4) and the semi-circular groove (2-3) is 1.5 times the diameter of the winding wire; The usage method steps are as follows: Step 1: Install the spherical winding fixture (1) on the winding machine through the connecting shaft (1-1), and fix the spherical winding stopper (2) on the outer bracket through the two fixing holes (2-2); First, use a hot air gun to preheat the spherical winding fixture (1), heat the spherical winding fixture (1) to 120°C, place the starting end of the self-adhesive enameled wire (3) in the opening groove (1-2-1) of the starting end column (1-2) of the spherical winding fixture (1), and at the same time wind the self-adhesive enameled wire (3) around the starting end column (1-2) for several turns to fix the starting end of the self-adhesive enameled wire (3) on the starting end column (1-2); Step 2: Move the spherical winding stopper (2) to the spherical winding fixture (1) until the starting end column (1-2) of the spherical winding fixture (1) with several turns of the starting end of the self-adhesive enameled wire (3) wound thereon enters the starting end column groove (2-1) on the main surface of the spherical winding stopper (2) with clearance fit. At this time, the hemispherical body (1-4) of the spherical winding fixture (1) is placed in the semi-circular groove (2-3) of the spherical winding stopper (2) with clearance fit, and the clearance distance is 1.5 times the width of the diameter of a single self-adhesive enameled wire (3); Step 3: Start the winding machine to drive the spherical winding fixture to rotate slowly. The self-adhesive enameled wire is wound from the starting end of the starting end column (1-2), the pole of the hemispherical body (1-4), and the hemispherical body (1-4) in sequence until it is close to the column body (1-3) or until the joint of the hemispherical body (1-4) and the column body (1-3), that is, the equator position. Then turn off the winding machine, remove the spherical winding stopper (2), and take down the wound hemispherical coil (4) for standby; During the winding process, a hot air gun is always used to heat the winding part to bond the self-adhesive enameled wires together. Due to the function of the spherical winding stopper (2), the self-adhesive enameled wires (3) will be arranged in sequence during the winding process and will not slip off. Step 4: Coat a layer of glue on the surface of the spherical iron core (5), snap the corresponding two hemispherical coils (4) onto the spherical iron core (5). The two hemispherical coils (4) are bonded to the spherical iron core (5) through the glue. Then, weld the leads at the tails of the two hemispherical coils (4), and after welding, use an insulating sleeve (6) for insulation treatment, thus completing the winding of the entire spherical stator.

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