Motor winding tensioning device

Abstract

A motor winding tensioning device, characterized in: a frame, a coil bracket, a wire arrangement hole, a hanging needle, a wire rubbing wheel, a wire rubbing wheel spring, a rotating shaft, a positioning shaft, a hanging needle spring, a hanging needle rack, a hanging needle hole, a sensor and an alarm, the coil bracket is installed in the frame, the top cross bar of the frame is provided with a wire arrangement hole, the rotating shaft is installed at the front position of the top of the frame, a plurality of wire rubbing wheels are installed on the rotating shaft, and a wire rubbing wheel spring is provided between the wire rubbing wheels, the hanging needle rack is located in front of the rotating shaft, and the hanging needle holes are distributed on the hanging needle rack. After the hanging needle passes through the hanging needle hole, the bottom of the hanging needle is connected to the hanging needle spring, and the hanging needle spring is fixedly connected to the frame, the positioning shaft is located at the top edge of the frame in front of the hanging needle rack, and the connection between the positioning shaft and the frame can move longitudinally, a sensor is installed on the top of the hanging needle, and the sensor output is connected to the alarm, and the alarm is installed on the frame.

Description

Technical Field

[0001] The invention relates to the technical field of motor winding, and in particular to a motor winding tensioning device. Background Art

[0002] The stator winding is obtained by winding the copper wire onto the stator core in a certain way, and winding is the processing process of the stator winding. The existing winding machine has no restrictions on the tension of the copper wire during the winding process, and simply winds the copper wire onto the core according to the program setting. However, in the production process, the copper wire will be better flat if it is wound when it is flat; the copper wire is easily covered with dust or dirt on the surface when it is stored, and direct winding will affect the performance of the winding. Generally, workers need to wipe it clean before winding, which is time-consuming and laborious; wire breakage often occurs in production. Since the winding machine winds multiple windings at the same time, when a winding breaks, the winding work of other windings will not stop, resulting in low performance of the processed stator winding. It is difficult for workers to find such minor defects during the processing process, and they will only be reflected after installation and use, which will seriously affect the production of the motor and the reputation of the manufacturer. Summary of the invention

[0003] The purpose of the present invention is to provide a motor winding tensioning device which can provide stable tension, ensure the cleanliness of copper wire and automatically alarm for wire breakage in view of the defects of the prior art.

[0004] In order to achieve the above-mentioned invention object, the technical solution adopted by the present invention is:

[0005] A motor winding tensioning device, characterized in: a frame, a coil bracket, a wire arrangement hole, a hanging needle, a wire rubbing wheel, a wire rubbing wheel spring, a rotating shaft, a positioning shaft, a hanging needle spring, a hanging needle rack, a hanging needle hole, a sensor and an alarm, the coil bracket is installed in the frame, the top cross bar of the frame is provided with a wire arrangement hole, the rotating shaft is installed at the front position of the top of the frame, a plurality of wire rubbing wheels are installed on the rotating shaft, and a wire rubbing wheel spring is provided between the wire rubbing wheels, the hanging needle rack is located in front of the rotating shaft, and the hanging needle holes are distributed on the hanging needle rack. After the hanging needle passes through the hanging needle hole, the bottom of the hanging needle is connected to the hanging needle spring, and the hanging needle spring is fixedly connected to the frame, the positioning shaft is located at the top edge of the frame in front of the hanging needle rack, and the connection between the positioning shaft and the frame can move longitudinally, a sensor is installed on the top of the hanging needle, and the sensor output is connected to the alarm, and the alarm is installed on the frame.

[0006] Furthermore, the wire-wiping wheel is an I-shaped hub, and the middle of the hub is filled with cotton fibers.

[0007] Furthermore, the sensor is a pressure sensor or a light sensor.

[0008] The advantages of the present invention are:

[0009] (1) The present invention is designed with a wire wiping wheel, so that the copper wire is automatically wiped by cotton fibers on the wire wiping wheel to remove dust and dirt before entering the winding, thereby avoiding the problem of poor winding performance due to unclean copper wire.

[0010] (2) The present invention is designed to provide a stable tensioning force to the copper wire by using a hanging needle and a hanging needle spring. When the copper wire is pulled by a winding machine, the hanging needle will move vertically upward, and the hanging needle spring at the bottom of the hanging needle will move the hanging needle downward due to its elasticity. Therefore, the hanging needle will move back and forth up and down, changing the tensioning force of the copper wire and making the copper wire smoother when wound.

[0011] (3) The present invention designs a positioning shaft at the front end of the frame. The positioning shaft can move up and down in the vertical direction as needed, so that the angle of the copper wire entering the winding machine can be adjusted, so that the copper wire enters the winding machine in a horizontal state, and the winding performance is better.

[0012] (4) The present invention is designed with a sensor at the top of the hanging needle. When the copper wire is disconnected, the hanging needle loses the tension of the copper wire and falls onto the hanging needle rack. At this time, the sensor will be triggered to turn on the alarm and send a signal to the winding machine to stop winding, thereby reducing the occurrence rate of defective products. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0014] Figure 1 is a structural schematic diagram of the motor winding tensioning device;

[0015] Figure 2 is a structural schematic diagram of the wire-wiping wheel;

[0016] The names and serial numbers of the components in the figure are: 1-frame; 2-coil bracket; 3-wire arrangement hole; 4-hanging needle; 5-wire rubbing wheel; 6-wire rubbing wheel spring; 7-rotating shaft; 8-positioning shaft; 9-hanging needle spring; 10-hanging needle frame; 11-hanging needle hole; 12-sensor; 13-alarm; 14-hub; 15-cotton fiber. DETAILED DESCRIPTION

[0017] The following embodiments of the technical solution of the present invention are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore only used as examples, and cannot be used to limit the protection scope of the present invention.

[0018] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0019] A motor winding tensioning device, a frame 1, a coil bracket 2, a wire arrangement hole 3, a hanging needle 4, a wire rubbing wheel 5, a wire rubbing wheel spring 6, a rotating shaft 7, a positioning shaft 8, a hanging needle spring 9, a hanging needle frame 10, a hanging needle hole 11, a sensor 12 and an alarm 13, wherein the coil bracket 2 is installed in the frame 1, a wire arrangement hole 3 is provided on the top cross bar of the frame 1, the rotating shaft 7 is installed at the front position of the top of the frame 1, a plurality of wire rubbing wheels 5 are installed on the rotating shaft 7, and wire rubbing wheel springs are provided between the wire rubbing wheels 5 Spring 6, the needle holder 10 is located in front of the rotating shaft 7, and the needle holder 10 is provided with needle holes 11. After the needle 4 passes through the needle hole 11, the bottom of the needle 4 is connected with the needle spring 9, and the needle spring 9 is fixedly connected to the frame 1. The positioning shaft 8 is located at the top edge of the frame 1 in front of the needle holder 10, and the connection between the positioning shaft 8 and the frame 1 can move longitudinally. A sensor 12 is installed on the top of the needle 4, and the output of the sensor 12 is connected to the alarm 13, and the alarm 13 is installed on the frame 1.

[0020] Preferably, the wire-wiping wheel 5 is an I-shaped hub 14 , and the middle of the hub 14 is filled with cotton fibers 15 .

[0021] Preferably, the sensor 12 is a pressure sensor or a light sensor.

[0022] The working principle of the present invention is as follows: the copper wire coil is placed on the coil bracket, the copper wire is passed through the wire arrangement hole on the cross bar at the top of the frame, the copper wire passes through the wire rubbing wheel and contacts the cotton fiber in the wire rubbing wheel, the copper wire passes through the top of the hanging needle, and finally the copper wire is placed on the positioning shaft and the end is connected to the winding device. When the present invention starts to work, under the pull of the winding machine, the hanging needle will move vertically upward, and the hanging needle spring at the bottom of the hanging needle will make the hanging needle move downward due to its elasticity, so the hanging needle will show an up and down reciprocating motion, providing tension to the copper wire, so that the copper wire can be wound. The copper wire is automatically wiped off the dirt and dust on the surface of the copper wire by the wire rubbing wheel, and the wire rubbing wheel can also act as a fulcrum to provide a certain tension force. Finally, the copper wire is placed on the positioning shaft. The staff adjusts the height of the positioning shaft in advance to make it level with the wire feeding part of the winding machine to ensure the quality of the winding. When a copper wire is disconnected, the top of the hanging needle will contact the hanging needle frame under the action of the spring tension. At this time, the sensor on the top of the hanging needle will send a signal to the alarm to make the alarm sound, and send a signal to the winding machine to stop it for repair.

[0023] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A motor winding tensioning device, characterized in that: A frame (1), a coil bracket (2), a wire arrangement hole (3), a hanging needle (4), a wire rubbing wheel (5), a wire rubbing wheel spring (6), a rotating shaft (7), a positioning shaft (8), a hanging needle spring (9), a hanging needle frame (10), a hanging needle hole (11), a sensor (12) and an alarm (13), wherein the coil bracket (2) is installed in the frame (1), a wire arrangement hole (3) is provided on a cross bar at the top of the frame (1), a rotating shaft (7) is installed at a front position at the top of the frame (1), a plurality of wire rubbing wheels (5) are installed on the rotating shaft (7), and wire rubbing wheel springs (6) are provided between the wire rubbing wheels (5), The needle holder (10) is located in front of the rotating shaft (7). The needle holder (10) is provided with needle holes (11). After the needle (4) passes through the needle hole (11), the bottom of the needle (4) is connected to the needle spring (9). The needle spring (9) is fixedly connected to the frame (1). The positioning shaft (8) is located at the top edge of the frame (1) in front of the needle holder (10). The connection between the positioning shaft (8) and the frame (1) can move longitudinally. A sensor (12) is installed on the top of the needle (4). The output of the sensor (12) is connected to an alarm (13). The alarm (13) is installed on the frame (1). The wire-wiping wheel (5) is an I-shaped wheel hub (14), and the middle of the wheel hub (14) is filled with cotton fibers (15); The sensor (12) is a pressure sensor or a light sensor.

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