Micromotor stator automatic assembly line

Abstract

The invention relates to the technical field of stator assembly, in particular to an automatic assembly line for micromotor stators. Comprising a manual feeding area, an automatic assembly line body, a silicon steel sheet iron core stator winding process, a circuit board bearing alloy seat press-fitting process, an enameled wire welding process, a waste enameled wire cleaning process, an iron core stator assembly line offline process, an iron core stator assembly bearing press-fitting process and an inter-turn detection process. The automatic assembly line body adopts a belt line set and a special jig to achieve circulation of the jig among a plurality of procedures, and automatic feeding, discharging and rail changing are achieved through a gantry mechanical arm and a transfer mechanical arm. According to the utility model, a plurality of dispersion processes of the micromotor stator are integrated into a continuous automatic process of one-time clamping, so that full-automatic production of winding, press fitting, welding, waste cleaning, bearing pressing and online detection is realized, the labor demand is greatly reduced, and the production efficiency and the product consistency are improved.

Description

Technical Field

[0001] This invention relates to the field of stator assembly technology, specifically to an automated assembly line for micro motor stators. Background Technology

[0002] The stator assembly process in micro motor assembly currently relies mainly on manual labor in conjunction with specialized equipment. Taking the production of a typical 52 motor as an example, its stator assembly process mainly includes several steps such as winding the motor core (usually requiring three sets of wires to produce six wire ends), installing the circuit board on the bearing alloy seat, pressing the bearing alloy seat with the circuit board installed into the wound core, sorting the wire ends and soldering the enameled wire ends to the U, V, and W pads of the circuit board, and pressing two bearings of different specifications into the bearing seat of the stator.

[0003] However, the current production method requires a large amount of manual operation, resulting in high labor intensity and high labor costs. The wire bonding and wire management processes are cumbersome, and manual operation is prone to errors, leading to quality problems such as poor welding and short circuits. The production cycle of each process is inconsistent, making it difficult to balance the efficiency of the production line. Different numbers of employees need to be allocated, making management complex. The skill requirements for operators are high, and each process requires skilled workers to debug and operate the special machines, resulting in high training costs. Manual operation inevitably has deviations or errors, leading to unstable product quality, poor consistency, and affecting product yield. Summary of the Invention

[0004] To address the problems in the prior art, this invention provides an automated assembly line for micro motor stators.

[0005] The technical solution adopted by the present invention to solve its technical problem is: an automatic assembly line for micro motor stators, including a manual feeding area, an automatic assembly line body, a silicon steel sheet core stator winding process, a circuit board bearing alloy seat pressing process, an enameled wire welding process, a waste enameled wire cleaning process, a core stator assembly assembly line offline process, a core stator bearing assembly pressing process, and an inter-turn inspection process; The automated production line includes a first belt conveyor, a second belt conveyor, a third belt conveyor, and a fourth belt conveyor. One end of the automated production line is equipped with a jig disc changing and pushing device and two sets of jig shaft winding machine loading and unloading gantry robotic arms. The other end of the automated production line is equipped with a jig transfer robotic arm. The first and second belt conveyors are used for rotation in the direction of the jig disc changing and pushing device, and the third and fourth belt conveyors are used for rotation in the direction of the jig transfer robotic arm.

[0006] Specifically, the silicon steel sheet core stator winding process is equipped with a first winding machine, a second winding machine, a third winding machine, and a fourth winding machine for automatically winding silicon steel sheet cores mounted on fixtures. One set of fixture shaft winding machine loading and unloading gantry robotic arms is used for loading and unloading fixture shafts of the first and second winding machines, and another set of fixture shaft winding machine loading and unloading gantry robotic arms is used for loading and unloading fixture shafts of the third and fourth winding machines.

[0007] Specifically, the circuit board bearing alloy seat pressing process is equipped with a bearing alloy seat press for pressing the wound circuit board bearing alloy seat into the silicon steel sheet core; the enameled wire welding process is equipped with a first, second, third, fourth and fifth automatic enameled wire welding machine for welding the enameled wire ends on the core to the circuit board pads; and the waste enameled wire cleaning process is equipped with a waste enameled wire cleaning device for removing the wire ends and waste wires remaining after welding.

[0008] Specifically, the bearing pressing process of the iron core stator assembly is equipped with a six-position cam divider turntable in the bearing housing for pressing the bearing into the stator alloy base, and the iron core stator assembly line offline process is equipped with an iron core stator offline robotic arm for removing the assembled semi-finished products from the fixture and transferring them to the subsequent process.

[0009] Specifically, the first, second, third, fourth, and fifth automatic enameled wire welding machines are all equipped with a weld point position visual recognition system for achieving precise positioning of the welding position.

[0010] Specifically, the inter-turn detection process is used to perform online automatic detection of inductance, resistance and inter-turn spacing on the assembled iron core stator, and the manual loading area is used to load the silicon steel sheet iron core and the bearing alloy seat with the circuit board pre-installed onto the corresponding positions of the assembly fixture.

[0011] Specifically, after the robotic arm that takes the iron core stator off the line transfers the assembled semi-finished product to the iron core stator assembly bearing press-fitting process, the empty assembly fixture flows back to the manual feeding area to form a closed loop.

[0012] The beneficial effects of this invention are: (1) The micro motor stator automatic assembly line of the present invention integrates the original multiple scattered processes (winding, pressing, welding, waste removal, bearing pressing, and testing) that rely on manual labor and special machines into a continuous automated process of one-time clamping through integrated automatic assembly line design, which greatly reduces the need for manual labor, significantly reduces labor costs and management complexity.

[0013] (2) The micro motor stator automatic assembly line of the present invention uses a special assembly fixture to realize the one-time clamping of the workpiece and the automatic and precise positioning and transfer between each process, avoiding the errors and workpiece damage caused by multiple manual loading and unloading. Combined with a visual recognition system, it realizes the precise positioning and automated welding of the weld points, and sets up an online inter-turn automatic detection process to perform full inspection of the products, effectively ensuring the consistency of assembly accuracy and electrical performance, and greatly improving the stability and yield of product quality.

[0014] (3) The micro motor stator automatic assembly line of the present invention, by reasonably configuring the number of multiple winding machines, welding machines and other equipment, and designing a buffer area on the line, balances the difference in cycle time caused by different processes, so that the production line can operate continuously, stably and efficiently, improve the overall equipment utilization rate and production efficiency, and at the same time, automated production reduces the dependence on highly skilled operators and reduces the requirements for personnel training. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Figure 1 This is a schematic diagram of the overall structure of a preferred embodiment of an automatic assembly line for micro motor stators provided by the present invention; Figure 2 for Figure 1 The diagram shown is an enlarged view of the structure of part A. Figure 3 for Figure 1 The diagram shown is an enlarged view of the structure of section B. Figure 4 for Figure 1 The diagram shown is an enlarged view of the C-section structure. Figure 5 for Figure 2 The diagram shown is an enlarged view of the structure of part D. Figure 6 for Figure 3 The diagram shows an enlarged view of the E-section structure.

[0017] In the diagram: 1. Manual feeding area; 2. Automated production line; 3. Silicon steel sheet core stator winding process; 4. Circuit board bearing alloy seat pressing process; 5. Enamelled wire welding process; 6. Waste enamelled wire cleaning process; 7. Core stator assembly production line offline process; 8. Core stator assembly bearing pressing process; 9. Inter-turn inspection process; 10. First belt conveyor; 11. Second belt conveyor; 12. Third belt conveyor; 13. Fourth belt conveyor; 14. Fixture disc rail changing and pushing device; 15. Fixture. 16. Loading and unloading gantry robotic arm for shaft winding machine; 17. Fixture transfer robotic arm; 18. First winding machine; 19. Second winding machine; 20. Third winding machine; 21. Fourth winding machine; 22. Bearing alloy seat press; 23. First automatic enameled wire welding machine; 24. Second automatic enameled wire welding machine; 25. Third automatic enameled wire welding machine; 26. Fourth automatic enameled wire welding machine; 27. Fifth automatic enameled wire welding machine; 28. Waste enameled wire cleaning device; 29. ​​Iron core stator unloading robotic arm. Detailed Implementation

[0018] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0019] like Figures 1-6 As shown, the automatic assembly line for micro motor stators of the present invention includes a manual feeding area 1, an automatic assembly line body 2, a silicon steel sheet core stator winding process 3, a circuit board bearing alloy seat pressing process 4, an enameled wire welding process 5, a waste enameled wire cleaning process 6, a core stator assembly assembly line offline process 7, a core stator bearing assembly pressing process 8, and an inter-turn inspection process 9. The automated production line 2 includes a first belt conveyor 10, a second belt conveyor 11, a third belt conveyor 12, and a fourth belt conveyor 13. One end of the automated production line 2 is equipped with a jig disc changing and pushing device 14 and two sets of jig shaft winding machine loading and unloading gantry robotic arms 15. The other end of the automated production line 2 is equipped with a jig transfer robotic arm 16. The first belt conveyor 10 and the second belt conveyor 11 are used for the rotation in the direction of the jig disc changing and pushing device 14, and the third belt conveyor 12 and the fourth belt conveyor 13 are used for the rotation in the direction of the jig transfer robotic arm 16.

[0020] Specifically, the silicon steel sheet core stator winding process 3 is equipped with a first winding machine 17, a second winding machine 18, a third winding machine 19, and a fourth winding machine 20 for automatically winding silicon steel sheet cores mounted on fixtures. One set of fixture shaft loading / unloading gantry robotic arms 15 is used for loading / unloading the fixture shafts of the first winding machine 17 and the second winding machine 18, and another set of fixture shaft loading / unloading gantry robotic arms 15 is used for loading / unloading the fixture shafts of the third winding machine 19 and the fourth winding machine 20. In the manual loading area 1, the operator loads the silicon steel sheet cores and the pre-installed... The bearing alloy seats of the circuit board are loaded onto the designated workstations of the special assembly fixtures. The loaded fixtures enter the automated production line 2 and are transported to the winding process loading area by the first belt conveyor 10 and the second belt conveyor 11. The loading and unloading gantry robot arm 15 of the fixture shaft winding machine grabs the fixture shaft according to the schedule and places it into the first winding machine 17, the second winding machine 18, the third winding machine 19 and the fourth winding machine 20 for automatic winding. After the winding is completed, the robot arm removes the fixture shaft and puts it back into the production line. The fixture continues to flow to the circuit board bearing alloy seat pressing process 4.

[0021] Specifically, the circuit board bearing alloy seat pressing process 4 is equipped with a bearing alloy seat press 21 for pressing the wound circuit board bearing alloy seat into the silicon steel sheet core; the enameled wire welding process 5 is equipped with a first enameled wire automatic welding machine 22, a second enameled wire automatic welding machine 23, a third enameled wire automatic welding machine 24, a fourth enameled wire automatic welding machine 25, and a fifth enameled wire automatic welding machine 26 for welding the enameled wire ends on the core to the circuit board pads; and the waste enameled wire cleaning process 6 is equipped with a waste enameled wire cleaning device 27 for removing residual wire ends and waste wire after welding; the first enameled wire automatic welding machine 22, the second enameled wire automatic welding machine 23, the third enameled wire automatic welding machine 25, and the fifth enameled wire automatic welding machine 26 are equipped with a first enameled wire automatic welding machine 22, a second enameled wire automatic welding machine 23, a third enameled wire automatic welding machine 24, a fourth enameled wire automatic welding machine 25, and a ... fifth enameled wire automatic welding machine 27, a fifth enameled wire automatic welding machine 27, a fifth enameled wire automatic welding machine 28, a fifth enameled wire automatic welding machine 29, a fifth enameled wire automatic welding machine 29, a fifth enameled wire automatic welding machine 29, a fifth enameled wire automatic welding machine 29, a fifth enameled wire automatic welding machine 29, a fifth enameled wire automatic welding machine 29, a fifth enameled wire automatic welding machine 29, a fifth enameled wire automatic welding machine 29, a fifth enameled wire automatic 4. Both the fourth and fifth automatic enameled wire welding machines 25 and 26 are equipped with a weld point position visual recognition system for precise positioning of the welding position; the bearing alloy seat press 21 automatically presses the wound circuit board bearing alloy seat into the silicon steel sheet core. Subsequently, the fixture enters the enameled wire welding process 5. The first, second, third, fourth, and fifth automatic enameled wire welding machines 22, 23, 24, 25, and 26, equipped with the visual recognition system, sequentially perform weld point positioning and automatic welding on the workpiece. After welding is completed, the waste enameled wire cleaning device 27 automatically cleans up the residual wire ends and waste wire.

[0022] Specifically, the bearing pressing process 8 of the iron core stator assembly is equipped with a six-position cam divider turntable inside the bearing housing for pressing the bearing into the stator alloy base; the iron core stator assembly line offline process 7 is equipped with an iron core stator offline robotic arm 28 for removing the assembled semi-finished products from the fixture and transferring them to the subsequent process; the turn-to-turn detection process 9 is used to perform online automatic detection of inductance, resistance and turn-to-turn of the assembled iron core stator; the manual loading area 1 is used to load the silicon steel sheet iron core and the bearing alloy base with the circuit board pre-installed to the corresponding positions of the assembly fixture; the iron core stator offline robotic arm 28 transfers the assembled semi-finished products to the iron core. After the stator assembly bearing press-fitting process 8, the empty assembly fixture flows back to the manual loading area 1 to form a closed loop. The stator unloading robot arm 28 removes the stator semi-finished product that has completed all assembly steps on the line from the fixture and transfers it to the six-position cam divider turntable of the stator assembly bearing press-fitting process 8 for automatic press-fitting of the upper and lower bearings. The assembled stator flows into the inter-turn inspection process 9 for online full electrical performance inspection. At the same time, the empty assembly fixture flows back to the manual loading area 1 via the fixture transfer robot arm 16 and the third belt line 12 and the fourth belt line 13, forming a complete automated production closed loop.

[0023] When using this invention, firstly, in the manual loading area 1, the operator loads the silicon steel sheet core and the bearing alloy seat with the circuit board installed onto the designated workstation of the special assembly fixture. The loaded fixture enters the automatic production line 2 and is transported to the winding process loading area by the first belt 10 and the second belt 11. Then, according to the schedule, the gantry robot arm 15 of the jig shaft winding machine grabs the jig shaft and places it into the first winding machine 17, the second winding machine 18, the third winding machine 19 and the fourth winding machine 20 for automatic winding. After the winding is completed, the robot arm removes the jig shaft and puts it back into the production line. The jig continues to flow to the circuit board bearing alloy seat pressing process 4. The bearing alloy seat press 21 automatically presses the wound circuit board bearing alloy seat into the silicon steel sheet core. Subsequently, the jig enters the enameled wire welding process 5. The first enameled wire automatic welding machine 22, the second enameled wire automatic welding machine 23, the third enameled wire automatic welding machine 24, the fourth enameled wire automatic welding machine 25 and the fifth enameled wire automatic welding machine 26 equipped with a vision recognition system perform weld point positioning and automatic welding on the workpiece in sequence. After the welding is completed, the waste enameled wire cleaning device 27 automatically cleans up the residual wire ends and waste wire. Finally, the stator unloading robot arm 28 removes the stator semi-finished product that has completed all assembly steps on the line from the fixture and transfers it to the six-station cam divider turntable of the stator assembly bearing pressing process 8 for automatic pressing of the upper and lower bearings. The assembled stator flows into the inter-turn inspection process 9 for online full electrical performance inspection. At the same time, the empty assembly fixture is transferred back to the manual loading area 1 via the fixture transfer robot arm 16 and the third belt line 12 and the fourth belt line 13, forming a complete automated production closed loop.

[0024] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0025] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An automated assembly line for micro motor stators, characterized in that, The process includes manual feeding area (1), automatic assembly line (2), silicon steel sheet core stator winding process (3), circuit board bearing alloy seat pressing process (4), enameled wire welding process (5), waste enameled wire cleaning process (6), core stator assembly assembly line offline process (7), core stator assembly bearing pressing process (8), and turn-to-turn inspection process (9). The automated production line (2) includes a first belt line (10), a second belt line (11), a third belt line (12) and a fourth belt line (13). One end of the automated production line (2) is provided with a jig disc changing and pushing device (14) and two sets of jig shaft winding machine loading and unloading gantry robotic arms (15). The other end of the automated production line (2) is provided with a jig transfer robotic arm (16). The first belt line (10) and the second belt line (11) are used for rotation in the direction of the jig disc changing and pushing device (14), and the third belt line (12) and the fourth belt line (13) are used for rotation in the direction of the jig transfer robotic arm (16).

2. The automatic assembly line for micro motor stators according to claim 1, characterized in that: The silicon steel sheet core stator winding process (3) is equipped with a first winding machine (17), a second winding machine (18), a third winding machine (19) and a fourth winding machine (20) for automatically winding silicon steel sheet cores mounted on fixtures. One set of fixture shaft winding machine loading and unloading gantry robotic arms (15) is used for loading and unloading fixture shafts of the first winding machine (17) and the second winding machine (18), and another set of fixture shaft winding machine loading and unloading gantry robotic arms (15) is used for loading and unloading fixture shafts of the third winding machine (19) and the fourth winding machine (20).

3. The automatic assembly line for micro motor stators according to claim 1, characterized in that: The circuit board bearing alloy seat pressing process (4) is equipped with a bearing alloy seat press (21) for pressing the wound circuit board bearing alloy seat into the silicon steel sheet core. The enameled wire welding process (5) is equipped with a first enameled wire automatic welding machine (22), a second enameled wire automatic welding machine (23), a third enameled wire automatic welding machine (24), a fourth enameled wire automatic welding machine (25), and a fifth enameled wire automatic welding machine (26) for welding the enameled wire ends on the core to the circuit board pads. The waste enameled wire cleaning process (6) is equipped with a waste enameled wire cleaning device (27) for cleaning the wire ends and waste wires remaining after welding.

4. The automatic assembly line for micro motor stators according to claim 1, characterized in that: The iron core stator assembly bearing pressing process (8) is equipped with a bearing housing six-position cam divider turntable for pressing the bearing into the stator alloy base. The iron core stator assembly assembly line offline process (7) is equipped with an iron core stator offline robotic arm (28) for removing the assembled semi-finished products from the fixture and transferring them to the subsequent process.

5. The automatic assembly line for a micro motor stator according to claim 3, characterized in that: The first automatic enameled wire welding machine (22), the second automatic enameled wire welding machine (23), the third automatic enameled wire welding machine (24), the fourth automatic enameled wire welding machine (25) and the fifth automatic enameled wire welding machine (26) are all equipped with a weld point position visual recognition system for achieving precise positioning of the welding position.

6. The automatic assembly line for micro motor stators according to claim 1, characterized in that: The inter-turn detection process (9) is used to perform online automatic detection of inductance, resistance and inter-turn of the assembled iron core stator. The manual loading area (1) is used to load the silicon steel sheet iron core and the bearing alloy seat with the circuit board pre-installed to the corresponding position of the assembly fixture.

7. The automatic assembly line for micro motor stators according to claim 4, characterized in that: After the iron core stator unloading robot arm (28) transfers the assembled semi-finished product to the iron core stator assembly bearing pressing process (8), the empty assembly fixture flows back to the manual feeding area (1) to form a closed loop.

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