Copper sheet assembly mechanism for motor commutator

By designing the copper sheet assembly mechanism of the motor commutator, the automatic loading and assembly of the copper sheet is realized, solving the problem of low manual assembly efficiency of small motor commutator, improving assembly efficiency and quality consistency, and reducing costs.

CN112909693BActive Publication Date: 2025-08-29SHENZHEN CHENGCHUANG INTELLIGENT PRECISION EQUIP CO LTD
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Patent Information

Application Number
CN202110353798.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2021-04-01
Publication Date
2025-08-29
Estimated Expiration
2041-04-01

AI Technical Summary

Technical Problem

In the prior art, the commutator copper sheet assembly efficiency of small motors is low, manual assembly leads to unstable quality and increases labor costs, making it difficult to achieve automated assembly.

Method used

A copper sheet assembly mechanism of a motor commutator is designed, including a copper sheet feeding assembly, an installation assembly and a pressing assembly. The copper sheet is fully automatic loading and assembly through an automated assembly line, and the copper sheet feeding seat, indexing disc mechanism and copper sheet pressing assembly are used to achieve accurate positioning and assembly of the copper sheet.

Benefits of technology

It improves the efficiency of copper sheet assembly, reduces labor costs, and ensures the quality consistency and efficiency of copper sheet assembly.

✦ Generated by Eureka AI based on patent content.

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    Figure CN112909693B_ABST
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Abstract

The present invention provides a copper sheet assembly mechanism for a motor commutator, comprising a copper sheet receiving assembly for receiving copper sheets, a copper sheet mounting assembly for mounting copper sheets, and a copper sheet pressing assembly disposed above the copper sheet mounting assembly for pressing the copper sheets in the receiving assembly into the copper sheet mounting assembly. The copper sheet receiving assembly comprises a copper sheet receiving seat and a copper sheet receiving driver, wherein the copper sheet receiving seat is provided with at least one copper sheet receiving slot. The copper sheet mounting assembly comprises a dividing plate, on which an auxiliary mold for mounting copper sheets is mounted, wherein the auxiliary mold is provided with at least one mounting slot. The copper sheet pressing assembly comprises a copper sheet pressing driver and a copper sheet pressing head connected to the pressing driver. Compared with the prior art, the copper sheet assembly mechanism utilizes a receiving seat to receive copper sheets. When the receiving seat moves the copper sheets above the auxiliary mold, the pressing head inserts the copper sheets into the auxiliary mold. The copper sheets in the stator are fully automatically assembled, thereby improving assembly efficiency and reducing costs.
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Description

Technical Field

[0001] The invention relates to the field of machining, in particular to a copper sheet assembly mechanism for a motor commutator. Background Art

[0002] An electric motor is a rotating electrical machine that converts electrical energy into mechanical energy. It primarily consists of an electromagnet winding or distributed stator winding to generate a magnetic field, and a rotating armature or rotor. The commutator, commonly known as the rectifier, is a component of a DC permanent magnet series motor that ensures continuous rotation. When current flows through the coils, they rotate due to the attraction and repulsion of the permanent magnets. When they reach equilibrium with the magnets, the contacts on the commutator corresponding to the current-carrying wire separate from the brushes, and the brushes connect to the contacts corresponding to the coils generating the driving force. This cycle repeats itself, and the DC motor rotates.

[0003] Electric motors can provide a wide range of power, from milliwatts to kilowatts. For example, machine tools and water pumps require electric motors for power; electric locomotives and elevators require electric traction; and household appliances like fans, refrigerators, washing machines, and even various motor-powered toys all rely on electric motors. In a commutator, copper and mica sheets are alternately arranged within a sleeve. However, the motors used in various small appliances and toys are relatively small, making automated assembly difficult and requiring manual assembly. Furthermore, the copper sheets must be spaced apart to form a circular shape. Manual assembly, without support and positioning within the sleeve, can easily lead to scattering, resulting in low efficiency, inconsistent quality, and increased labor costs. Summary of the Invention

[0004] In view of the above problems, the present invention provides a copper sheet assembly mechanism for a motor commutator, which can automatically load and assemble the copper sheets in the commutator, thereby improving work efficiency.

[0005] The technical solution adopted in the present invention is:

[0006] A copper sheet assembly mechanism for a motor commutator comprises a copper sheet receiving assembly for receiving copper sheets, a copper sheet mounting assembly for installing copper sheets, and a copper sheet pressing assembly arranged above the copper sheet mounting assembly for pressing the copper sheets in the receiving assembly into the copper sheet mounting assembly. The copper sheet receiving assembly comprises a copper sheet receiving seat and a copper sheet receiving driver for driving the receiving seat to move, and the copper sheet receiving seat is provided with at least one copper sheet receiving trough for receiving copper sheets; the copper sheet mounting assembly comprises a dividing plate mechanism, and the dividing plate mechanism is provided with an auxiliary mold for installing copper sheets, and the auxiliary mold is provided with at least one mounting groove; the copper sheet pressing assembly comprises a copper sheet pressing driver and a copper sheet pressing column connected to the pressing driver for pressing the copper sheet in the copper sheet receiving trough into the mounting groove when the copper sheet receiving trough in the receiving seat is aligned with the mounting groove on the auxiliary mold.

[0007] Preferably, the copper sheet pressing assembly also includes a bracket above the dividing plate, the bottom plate of the bracket is provided with an opening corresponding to the auxiliary mold, the pressing driver is arranged on the top plate of the bracket, the pressing driver is connected to a guide plate, a guide shaft for guiding the guide plate is provided between the bottom plate and the top, and the pressing column is installed below the guide plate.

[0008] More preferably, the bottom plate is further provided with a channel for the material receiving seat to slide, and the channel is communicated with the opening.

[0009] More preferably, a guide seat is provided above the copper sheet receiving seat, the guide seat is mounted on the bottom plate of the bracket, and a guide through groove corresponding to the receiving groove in the receiving seat is provided in the guide seat.

[0010] More preferably, the base plate includes an upper base plate connected to the guide shaft, a lower base plate fixed below the upper base plate, and a transition seat arranged below the lower base plate. The upper base plate and the transition seat are both provided with openings corresponding to the auxiliary mold, the lower base plate is provided with a channel, the guide seat is installed on the lower base plate, and the opening of the upper base plate and the opening of the transition seat are respectively located on the upper and lower sides of the channel.

[0011] Preferably, the bottom of the indexing plate mechanism is connected to a indexing plate driver via a belt.

[0012] Preferably, the auxiliary mold includes an outer cylinder and an inner cylinder sleeved in the outer cylinder, a gap is left between the inner cylinder and the outer cylinder, and the mounting grooves are distributed on the outer wall of the inner cylinder around the center of the inner cylinder; the material receiving groove is arranged at the outer end of the material receiving seat, and the pressing column is provided with a pressing head matching the shape of each material receiving groove.

[0013] Preferably, the auxiliary mold is provided with 24 vertical mounting grooves distributed around the center of the auxiliary mold, the material receiving seat is provided with 4 vertically arranged material receiving grooves, and the pressing column is provided with 4 pressing heads that match the shapes of the material receiving grooves.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention provides a copper sheet assembly mechanism for a commutator for a motor, which utilizes a receiving seat to receive the copper sheet. When the receiving seat moves the copper sheet to the top of the auxiliary mold, a pressing head inserts the copper sheet into the auxiliary mold, thereby improving assembly efficiency and reducing costs. The copper sheets in the stator are fully automatically loaded and assembled, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 , which is a schematic diagram of a copper sheet assembly mechanism for a motor commutator provided by the present invention Figure 1 ;

[0016] Figure 2 , which is a schematic diagram of a copper sheet assembly mechanism for a motor commutator provided by the present invention Figure 2 ;

[0017] Figure 3 , which is an exploded view of a copper sheet assembly mechanism of a motor commutator provided by the present invention;

[0018] Figure 4 , which is a schematic diagram of a copper sheet receiving seat in a copper sheet assembly mechanism of a motor commutator provided by the present invention;

[0019] Figure 5 , is a schematic diagram of a copper sheet mounting assembly in a copper sheet assembly mechanism of a motor commutator provided by the present invention;

[0020] Figure 6 , which is a schematic diagram of an auxiliary mold in a copper sheet installation assembly of a copper sheet assembly mechanism of a motor commutator provided by the present invention;

[0021] Figure 7 , is a schematic diagram of a copper sheet pressing assembly in a copper sheet assembly mechanism of a motor commutator provided by the present invention;

[0022] Figure 8 , which is an exploded view of a copper sheet pressing assembly in a copper sheet assembly mechanism of a motor commutator provided by the present invention;

[0023] Figure 9 , is a schematic diagram of a guide seat in a copper sheet assembly mechanism of a motor commutator provided by the present invention;

[0024] Figure 10 , which is a schematic diagram of the copper sheets in the copper sheet assembly mechanism of the motor commutator provided by the present invention. DETAILED DESCRIPTION

[0025] The preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0026] Figures 1 to 10, which is a preferred embodiment of the copper sheet assembly mechanism of a motor commutator provided by the present invention. Figures 1 to 10 As shown, the copper sheet assembly mechanism 10 of the motor commutator includes a copper sheet receiving assembly 11 for receiving copper sheets, a copper sheet installation assembly 12 for installing copper sheets, and a copper sheet pressing assembly 13 disposed above the copper sheet installation assembly for pressing the copper sheets in the receiving assembly into the copper sheet installation assembly. After the external feeding mechanism delivers the copper sheets into place, the copper sheet receiving assembly 11 receives the copper sheet 100 and moves the copper sheet 100 to the top of the copper sheet installation assembly 12. The copper sheet pressing assembly 13 presses the copper sheets in the copper sheet receiving assembly 11 into the copper sheet installation assembly 12. During the assembly process of the motor commutator, assembling the copper sheets by the copper sheet assembly mechanism of the motor commutator is one of the processes. The assembly mechanism is generally installed in a turntable mechanism to facilitate assembly in subsequent processes.

[0027] like Figure 4 and Figure 9 As shown, the copper sheet receiving assembly 11 includes a copper sheet receiving seat 111 and a copper sheet receiving driver 112 for driving the receiving seat to move. The copper sheet receiving seat 111 is provided with at least one copper sheet receiving trough 1111 for receiving copper sheets. The copper sheet receiving seat 111 is located below the external feeding mechanism to receive the copper sheets, and the copper sheets fall into the copper sheet receiving trough 1111. A guide seat 113 is provided above the copper sheet receiving seat 111. The guide seat 113 is provided with a guide groove 1131 corresponding to the copper sheet receiving trough 1111 in the copper sheet receiving seat 111. The copper sheets loaded by the external feeding mechanism first pass through the guide groove 1131 of the guide seat before entering the copper sheet receiving trough 1111 of the copper sheet receiving seat. The copper sheet receiving groove 1111 is vertically arranged at the outer end of the copper sheet receiving seat 111. The copper sheet receiving groove 1111 is a through groove that matches the copper sheet to facilitate subsequent pressing of the copper sheet. The receiving driver 112 is a cylinder.

[0028] like Figure 5 and Figure 6As shown, the copper sheet mounting assembly 12 includes a disc mechanism 121, mounted on which is an auxiliary mold 122 for mounting the copper sheet. The auxiliary mold 122 is provided with at least one mounting slot 12201. The auxiliary mold 122 comprises an outer cylinder 1221 and an inner cylinder 1222 nested within the outer cylinder 1221. The inner cylinder 1222 is spaced apart from the outer cylinder, and multiple mounting slots 12201 are formed on the outer wall of the inner cylinder 1222. The disc mechanism 121 is also connected to a disc driver 123 for rotating the auxiliary mold. The bottom of the disc mechanism is connected to the disc driver 123 via a pulley. After a copper sheet 100 is assembled into a portion of the mounting slots 12201 on the auxiliary mold 122, the disc driver 123 drives the disc mechanism 121 to rotate a certain angle, allowing the unassembled mounting slots 12201 in the auxiliary mold 122 to be ready for copper sheet assembly. The disc driver 123 is a motor. In the assembly process of the motor commutator, the indexing plate mechanism 121 and the indexing plate driver 123 are generally installed on the turntable. After the copper sheets 100 are assembled, as the turntable rotates, the auxiliary mold 122 assembled with the copper sheets 100 is driven to enter the next process.

[0029] like Figure 7 and Figure 8 As shown, the copper sheet pressing assembly 13 includes a copper sheet pressing driver 131 and a copper sheet pressing column 132 connected to the pressing driver for pressing the copper sheet in the copper sheet receiving trough 1111 to the mounting groove when the copper sheet receiving trough 1111 in the copper sheet receiving seat is aligned with the mounting groove 12201 on the auxiliary mold 122. In this way, after the copper sheet receiving trough 1111 of the copper sheet receiving seat 111 receives the copper sheet, the receiving driver 112 drives the copper sheet receiving seat to move above the auxiliary mold 122 in the dividing plate mechanism, and the copper sheet receiving trough 1111 is aligned with the mounting groove 12201 on the auxiliary mold 122. The copper sheet pressing driver 131 drives the copper sheet pressing column 132 to press the copper sheet in the copper sheet receiving trough 1111 until the copper sheet is inserted from the copper sheet receiving trough into the mounting groove 12201. It is worth noting that a pressing head 1321 matching the shape of each receiving groove is provided on the pressing column 132 . When pressing, the pressing head 1321 extends into the copper sheet receiving groove 1111 to press the copper sheet into the installation groove 12201 .

[0030] The copper sheet pressing assembly 13 also includes a bracket 133 located above the dividing plate. An opening 134 corresponding to the auxiliary mold is provided on the bottom plate 1331 of the bracket 133. The pressing driver 131 is arranged on the top plate 1332 of the bracket 133. The pressing driver 131 is connected to a guide plate 1333. A guide shaft 1334 for guiding the guide plate is provided between the bottom plate and the top. The pressing column 132 is installed below the guide plate 1333. In this way, when pressing, the pressing driver 131 drives the guide plate 1333 to move along the guide shaft 1334, driving the pressing column 132 to descend for pressing.

[0031] The bottom plate 1331 is also provided with a channel 135 for the material receiving seat to slide. The channel 135 is connected to the opening 134. The copper sheet material receiving driver 112 drives the copper sheet material receiving seat 111 to slide in the channel 135, and also limits the moving direction of the copper sheet material receiving seat 111.

[0032] like Figure 8 As shown, the base plate 1331 includes an upper base plate 13311 connected to the guide shaft, a lower base plate 13312 fixed below the upper base plate, and a transition seat 13313 disposed below the lower base plate. Both the upper base plate 13311 and the transition seat 13313 are provided with openings 134 corresponding to the auxiliary mold. The lower base plate 13312 is provided with a channel 135. The guide seat 113 is mounted on the lower base plate 13312. The openings 134 of the upper base plate and the openings 134 of the transition seat are located above and below the channel 135, respectively. When the copper sheet receiving driver 112 drives the copper sheet receiving seat 111 to move between the openings 134 of the upper base plate and the openings 134 of the transition seat, during installation, the lower base plate 13312 is fixedly mounted on a bracket provided with a corresponding opening. The transition seat 13313 is fixed below the bracket and above the copper sheet mounting assembly 12 to prevent the copper sheet 100 from falling off.

[0033] As a preferred embodiment, the rotor of the motor requires 24 copper sheets 100 arranged in a cylindrical shape, the auxiliary mold 122 is provided with 24 vertical mounting grooves 12202 distributed around the center of the auxiliary mold, the copper sheet receiving seat 111 is provided with 4 vertical receiving grooves 1111, and the 4 receiving grooves 1111 are arranged in a 60-degree arc, and the pressing column 132 is provided with 4 pressing heads 1321 that match the shape of each receiving groove, and the 4 pressing protrusions 1321 are arranged in a 60-degree arc; in this way, the copper sheet receiving seat 111 can receive 4 copper sheets at a time, and the copper sheets 100 are vertically arranged along a 60-degree arc at the outer end of the copper sheet receiving seat 111, and the receiving driver 112 drives the copper sheet receiving seat 111 to move along the channel to the top of the auxiliary mold 122 in the dividing plate mechanism 121, and the 4 copper sheets are received. The slot 1111 is aligned with the four mounting slots 12201 on the auxiliary mold 122, and the copper sheet pressing driver 131 drives the copper sheet pressing column 132 to press the copper sheet 100 in the copper sheet receiving slot 1111. The pressing head 1321 on the copper sheet pressing column 132 passes through the opening 134 and extends into the copper sheet receiving slot 1111 to press the copper sheet into the mounting slot 12201; the material receiving driver 112 drives the copper sheet receiving seat to retreat along the channel 135 to the material receiving position to receive the copper sheet again, and the dividing plate driver 123 drives the dividing plate mechanism 121 to rotate 60 degrees, so that the other four mounting slots 12201 that have not received the copper sheet are under the opening 134 of the bottom plate 1331, waiting for assembly; until the copper sheets 100 are assembled in the 24 mounting slots 12201 in the auxiliary mold 122, the assembly of the copper sheets is completed.

[0034] In summary, the technical solution of the present invention can fully and effectively achieve the above-mentioned invention objectives, and the structure and functional principles of the present invention have been fully verified in the embodiments and can achieve the expected effects and purposes. Without departing from the principles and essence of the present invention, various changes or modifications can be made to the embodiments of the invention. Therefore, the present invention includes all replacement contents within the scope mentioned in the scope of the patent application, and any equivalent changes made within the scope of the patent application of the present invention are within the scope of the patent application of this case.

Claims

1. A copper sheet assembly mechanism for a motor commutator, characterized in that: The invention comprises a copper sheet receiving assembly for receiving copper sheets, a copper sheet mounting assembly for mounting copper sheets, and a copper sheet pressing assembly arranged above the copper sheet mounting assembly for pressing the copper sheets in the receiving assembly into the copper sheet mounting assembly, the copper sheet receiving assembly comprising a copper sheet receiving seat and a copper sheet receiving driver for driving the receiving seat to move, the copper sheet receiving seat being provided with at least one copper sheet receiving trough for receiving the copper sheets; the copper sheet mounting assembly comprising a dividing plate mechanism, the dividing plate mechanism being provided with an auxiliary mold for mounting the copper sheets, the auxiliary mold being provided with at least one mounting groove; the copper sheet pressing assembly comprising a copper sheet pressing driver and a copper sheet pressing column connected to the pressing driver for pressing the copper sheet in the copper sheet receiving trough into the mounting groove when the copper sheet receiving trough in the receiving seat is aligned with the mounting groove on the auxiliary mold; The copper sheet pressing assembly further includes a bracket located above the indexing plate mechanism, the bottom plate of the bracket being provided with an opening corresponding to the auxiliary mold, a pressing driver being provided on the top plate of the bracket, the pressing driver being connected to a guide plate, a guide shaft for guiding the guide plate being provided between the bottom plate and the top, and a copper sheet pressing column being installed below the guide plate; A guide seat is provided above the copper sheet receiving seat, the guide seat is mounted on the bottom plate of the bracket, and a guide through groove corresponding to the receiving groove in the receiving seat is provided in the guide seat.

2. The copper sheet assembly mechanism for a motor commutator according to claim 1, characterized in that: The bottom plate is also provided with a channel for the material receiving seat to slide, and the channel is communicated with the opening.

3. The copper sheet assembly mechanism for a motor commutator according to claim 2, characterized in that: The base plate includes an upper base plate connected to the guide shaft, a lower base plate fixed below the upper base plate, and a transition seat arranged below the lower base plate. Openings corresponding to the auxiliary mold are provided in the upper base plate and the transition seat. A channel is provided on the lower base plate, and the guide seat is installed on the lower base plate. The opening of the upper base plate and the opening of the transition seat are respectively located on the upper and lower sides of the channel.

4. The copper sheet assembly mechanism for a motor commutator according to claim 1, characterized in that: The bottom of the indexing plate mechanism is connected with an indexing plate driver via a belt.

5. The copper sheet assembly mechanism for a motor commutator according to claim 1, characterized in that: The auxiliary mold includes an outer cylinder and an inner cylinder sleeved in the outer cylinder, a gap is left between the inner cylinder and the outer cylinder, and the mounting grooves are distributed on the outer wall of the inner cylinder around the center of the inner cylinder.

6. The copper sheet assembly mechanism for a motor commutator according to claim 1, characterized in that: The copper sheet receiving grooves are arranged at the outer end of the copper sheet receiving seat, and the pressing columns are provided with pressing heads that match the shapes of the receiving grooves.

7. The copper sheet assembly mechanism for a motor commutator according to claim 1, characterized in that: The auxiliary mold is provided with 24 vertical mounting grooves distributed around the center of the auxiliary mold, the material receiving seat is provided with 4 vertically arranged copper sheet material receiving grooves, and the pressing column is provided with 4 pressing heads that match the shapes of each material receiving groove.

Citation Information

Patent Citations

  • Commutator segment automatic inserting apparatus

    CN105140758A

  • Automatic commutator-pressing apparatus

    CN105449488A

  • Copper sheet assembling mechanism of motor commutator

    CN214379213U