CN216576160U

CN216576160U - Automatic welding device for motor rotor and special motor rotor

Info

Publication number: CN216576160U
Application number: CN202123218510.0U
Authority: CN
Inventors: 周冬发; 王煜权
Original assignee: Yueqing Xinye Plastic Co ltd
Current assignee: Yueqing Xinye Plastic Co ltd
Priority date: 2021-12-21
Filing date: 2021-12-21
Publication date: 2022-05-24
Anticipated expiration: 2031-12-21

Abstract

The utility model discloses an automatic welding device for a motor rotor and a special motor rotor. The technical scheme adopted comprises the following steps: the mounting disc is mounted on the rack; the wire smoothing positioning telescopic rod is circumferentially arranged on a wire smoothing positioning telescopic rod sliding block of the mounting disc, the front end of the wire smoothing positioning telescopic rod is provided with a wire smoothing positioning head, a positioning hole matched with a commutator on a motor rotor is formed in the center of the wire smoothing positioning head, and a positioning groove matched with a winding lead on the motor rotor is formed between the adjacent wire smoothing positioning heads; the wire pressing telescopic rods are circumferentially arranged on the wire pressing telescopic rod sliding blocks of the mounting disc and are positioned above the wire smoothing positioning telescopic rods, wire pressing heads are arranged at the front ends of the wire pressing telescopic rods, and wire pressing plates matched with the positioning grooves are arranged on the lower end faces of the wire pressing heads.

Description

Automatic welding device for motor rotor and special motor rotor

Technical Field

The utility model relates to an automatic welding device for a motor rotor.

Background

The rotor structure of the traditional coreless motor comprises a winding, a commutator and a rotating shaft, wherein the winding is a cup-shaped cylindrical coil which is wound by self-adhesive polyurethane enameled wires on a special mould, the inner surface and the outer surface of the cup-shaped cylindrical coil are coated with holding insulating glue, and then the cup-shaped cylindrical coil is cured and molded at high temperature; the commutator is connected with the cup-shaped circular coil, and the joint is coated with holding protection glue and is also formed by high-temperature curing. The rotating shaft is fixed in the center of the commutator. And a group of winding leads which are circumferentially arranged are led out of the winding and are welded with pole pieces of the commutator. The traditional winding lead wires are all welded manually, and the defects of low working efficiency and poor welding quality exist. In addition, the rotor of the coreless motor of the micro motor is very small in volume (the diameter is only 3 mm), and how to accurately position the rotor to prevent the insufficient welding of a welding gun is also a difficult problem to be solved by the current automatic welding device.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an automatic welding device for a motor rotor and a special motor rotor.

In order to solve the above problems, the technical scheme adopted by the utility model comprises:

the welding gun is arranged on the linear slide rail of the rack;

the material conveying track is positioned below the welding gun and is provided with a transverse material conveying groove;

the material seat mainly comprises a first material seat and a second material seat, the first material seat is rotatably arranged in a material conveying groove of the material conveying rail and is positioned below the welding gun, and the second material seat is movably arranged in a mounting groove in the middle of the first material seat and is matched with the material conveying groove;

the positioning core is used for positioning the motor rotor and movably arranged in the second material seat;

the lower end of the positioning rod is connected with the air cylinder, and the upper end of the positioning rod is used for positioning the second material seat and the positioning core;

and the driving mechanism drives the first material seat to intermittently rotate.

Motor rotor automatic welder, its characterized in that: the first material seat is provided with an induction sheet, and one side of the material conveying track is provided with a photoelectric induction switch for detecting the position of the induction sheet.

Motor rotor automatic welder, its characterized in that: the driving mechanism comprises an intermittent cam divider, a gear and a transmission belt.

Motor rotor automatic welder, its characterized in that: one side of the positioning core is provided with a positioning surface.

Motor rotor automatic welder, its characterized in that: the periphery of the top of the positioning core is provided with a group of positioning columns which are arranged circumferentially, and the center of the positioning core is provided with a first positioning hole.

Motor rotor automatic welder, its characterized in that: and the second material seat is provided with an annular positioning groove, and the inner side surface of the induction sheet extends into the annular positioning groove.

Motor rotor automatic welder, its characterized in that: the welding gun is vertically arranged on the linear slide rail, and the positioning core is vertically and movably arranged in the second material seat.

Motor rotor automatic welder, its characterized in that: the bottom of the first material seat is connected with a limiting block through threads.

The special motor rotor is suitable for the automatic welding device of the motor rotor, and comprises a winding, a commutator and a rotating shaft, wherein the commutator is connected with the winding, and the rotating shaft is fixed at the center of the commutator, and is characterized in that: and a group of second positioning holes which are circumferentially arranged are formed in the bottom of the commutator.

The special motor rotor is characterized in that: the number of the second positioning holes is 5.

The automatic welding device for the motor rotor has the advantages that: 1. the welding between the winding lead of the motor rotor and the pole piece of the commutator can be fully automatically realized, so that the working effect is greatly improved, the welding quality is neat and uniform, and the welding quality of a product is also greatly improved; 2. through the accurate location to the motor rotor to realize welder's accurate welding.

The utility model is further described below with reference to the accompanying drawings.

Drawings

FIG. 1 is a schematic structural view of an automatic welding device for a motor rotor according to the present invention;

FIG. 2 is a schematic view of a partial structure of an automatic welding apparatus for a motor rotor according to the present invention;

FIG. 3 is a cross-sectional view of FIG. 2;

FIG. 4 is a schematic view of the material holder according to the present invention;

FIG. 5 is a schematic view of the construction of the positioning core of the present invention;

FIG. 6 is a schematic view of the positioning between the positioning core and the motor rotor of the present invention;

FIG. 7 is a schematic structural diagram of a rotor of a special motor of the present invention;

fig. 8 is a schematic view of the structure of the commutator of the present invention.

Detailed Description

Example 1:

referring to fig. 1 to 7, the automatic welding apparatus for a motor rotor of the present invention includes: welding gun 1, material transfer track 2, material seat 3, location core 4, locating lever 5 and actuating mechanism 6. The welding gun 1 is arranged on a linear slide rail 8 of the frame 7, and is controlled to move up and down through the linear slide rail 8 so as to be in contact with or far away from a motor rotor. The material conveying track 2 is located below the welding gun 1, and a transverse material conveying groove 10 is formed in the material conveying track 2. The material seat 3 is composed of a first material seat 11 and a second material seat 12. The first material seat 11 is rotatably mounted in the material conveying groove 10 of the material conveying track 2, the bottom of the first material seat 11 is connected with a limiting block 28 through threads, and the limiting block 28 limits the first material seat in the material conveying groove 10 of the material conveying track 2 to prevent the first material seat from falling off. And the first material holder 11 is located below the welding gun 1. The second material seat 12 is movably installed in an installation groove 13 in the middle of the first material seat 11, and the installation groove 13 is matched with the material conveying groove 10, so that the first material seat 11 can move smoothly in the material conveying groove 10. The positioning core 4 is used for positioning the motor rotor and is movably arranged in the second material seat 12. The lower end of the positioning rod 5 is connected with the air cylinder 14, the upper end of the positioning rod positions the second material seat 12 and the positioning core 4, and after the air cylinder 14 pushes the positioning rod 5 upwards, the positioning rod 5 is inserted into the second material seat 12 and the positioning core 4 positions the positioning rod to ensure the position accuracy. The driving mechanism 6 drives the first material seat 11 to rotate, and since the motor rotor is equally divided into a plurality of (5 in this example) winding leads 26 to be welded, the driving mechanism 6 also needs to be equally divided into a plurality of intervals to rotate. The driving mechanism 6 preferably adopts an intermittent cam divider 17, a gear 18 and a transmission belt 19, the gear 18 is respectively installed at the lower end of the first material seat 11 and the upper end of the intermittent cam divider 17, and the two gears 18 are connected through the transmission belt 19 to realize multi-equal-division intermittent rotation. The intermittent cam divider 17 may be replaced with a stepping motor. In order to improve the working efficiency, the same double stations or more stations can be arranged.

Preferably, the first material seat 11 is provided with an induction sheet 15, one side of the material conveying track 2 is provided with a photoelectric induction switch 16 for sensing the position of a convex part of the induction sheet 15, when the induction sheet 15 rotates for one circle, the welding is finished, at this time, the welded motor rotor and the second material seat 12 are removed through a feeding device, and the second material seat 12 provided with the motor rotor to be welded is continuously installed.

Preferably, 5 positioning columns 21 are circumferentially arranged on the periphery of the top of the positioning core 4, and a first positioning hole 22 is formed in the center of the positioning core 4. When the positioning core 4 positions the motor rotor, as shown in fig. 6, the positioning column 21 of the positioning core 4 is inserted into the corresponding 5 holes at the bottom of the commutator 24, and the first positioning hole 22 is inserted into the rotating shaft 25 of the motor rotor, so as to realize accurate positioning of the motor rotor, thereby ensuring that the welding gun 1 can accurately align with the winding lead 26 of the motor rotor for welding.

Preferably, a positioning surface 20 is arranged on one side of the positioning core 4, and after the positioning core 4 is installed in the second material seat 12, the positioning core is positioned by screwing a positioning screw 29 into the second material seat 12 and the positioning surface 20, so that the positioning core can only slide up and down within one angle, and the position deviation of the motor rotor caused by the rotation of the positioning core is prevented, and the positioning of the motor rotor is further influenced. Meanwhile, the positioning core 4 is prevented from falling off from the second material seat 12 by the matching of the positioning screw 29 and the positioning surface 20.

Preferably, the second material seat 12 is provided with an annular positioning groove 9, and the inner side surface of the sensing piece 15 extends into the annular positioning groove 9, so that the second material seat 12 can rotate more stably, and the stability of the rotation of the motor rotor is further ensured.

Preferably, the welding gun 1 is vertically installed on the linear slide rail 8, and the positioning core 4 is vertically and movably arranged in the second material seat 12, so as to further realize accurate welding of welding.

The working principle is as follows: after the second material seat and the positioning core are assembled, the motor rotor is firstly installed on the positioning core, and the second material seat is conveyed into the installation groove of the first material seat along the material conveying groove by using the feeding tool; and after the second material seat is placed in place, the positioning rod pushes up the cylinder to position the second material seat 12 and the positioning core 4, and finally, the welding gun moves downwards and is matched with an intermittent rotating driving mechanism to weld 5 winding leads of the motor.

Example 2:

referring to fig. 7-8, the special motor rotor of the present invention includes a winding 23, a commutator 24 and a rotating shaft 25, wherein the commutator 24 is connected with the winding 23, the rotating shaft 25 is fixed at the center of the commutator 24, and a set of circumferentially arranged winding leads 26 led out from the winding 23 are welded with pole pieces 27 of the commutator 24. The bottom of the commutator 24 is provided with a set of second positioning holes 30 which are arranged circumferentially. The second positioning holes 30 are preferably arranged below the pole piece 27 in the same number, and typically 5 second positioning holes 30 are provided. By adopting the structure, the special motor rotor can be matched with the positioning column 21 at the top of the positioning core 4 in the embodiment 1, so that the special motor rotor welding device is suitable for automatic production of the automatic welding device of the motor rotor in the embodiment 1.

Although the present invention has been described with reference to the above embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the utility model.

Claims

1. An automatic welding device for a motor rotor is characterized by comprising:

the welding gun (1) is arranged on a linear slide rail (8) of the rack (7);

the material conveying track (2) is positioned below the welding gun (1) and is provided with a transverse material conveying groove (10);

the material seat (3) mainly comprises a first material seat (11) and a second material seat (12), the first material seat (11) is rotatably installed in a material conveying groove (10) of the material conveying rail (2) and is positioned below the welding gun (1), the second material seat (12) is movably installed in an installation groove (13) in the middle of the first material seat (11), and the installation groove (13) is matched with the material conveying groove (10);

the positioning core (4) is used for positioning the motor rotor and movably arranged in the second material seat (12);

the lower end of the positioning rod (5) is connected with the air cylinder (14), and the upper end of the positioning rod is inserted into the second material seat (12) and the positioning core (4) to position the second material seat and the positioning core;

and the driving mechanism (6) drives the first material seat (11) to intermittently rotate.

2. The automatic welding device for the rotor of the motor according to claim 1, wherein: the material conveying device is characterized in that a sensing piece (15) is arranged on the first material seat (11), and a photoelectric sensing switch (16) for detecting the position of the sensing piece (15) is arranged on one side of the material conveying track (2).

3. The automatic welding device for the rotor of the motor according to claim 1, wherein: the driving mechanism (6) comprises an intermittent cam divider (17), a gear (18) and a transmission belt (19).

4. The automatic welding device for the rotor of the motor according to claim 1, wherein: and one side of the positioning core (4) is provided with a positioning surface (20).

5. The automatic welding device for the rotor of the motor according to claim 1, wherein: the top of the positioning core (4) is provided with a group of positioning columns (21) which are arranged circumferentially, and the center of the positioning core is provided with a first positioning hole (22).

6. The automatic welding device for the motor rotor according to claim 2, wherein: and the second material seat (12) is provided with an annular positioning groove (9), and the inner side surface of the induction sheet (15) extends into the annular positioning groove (9).

7. The automatic welding device for the rotor of the motor according to claim 1, wherein: the welding gun (1) is vertically arranged on the linear slide rail (8), and the positioning core (4) is vertically and movably arranged in the second material seat (12).

8. The automatic welding device for the rotor of the motor according to claim 1, wherein: the bottom of the first material seat (11) is connected with a limiting block (28) through threads.

9. A special motor rotor adapted for the automatic welding device of motor rotor according to any one of claims 1 to 8, comprising a winding (23), a commutator (24) and a rotating shaft (25), wherein the commutator (24) is connected with the winding (23), and the rotating shaft (25) is fixed at the center of the commutator (24), characterized in that: the bottom of the commutator (24) is provided with a group of second positioning holes (30) which are arranged circumferentially.

10. The dedicated motor rotor as recited in claim 9, wherein: the number of the second positioning holes (30) is 5.