CN-121984295-A - Square wire paint stripping device and application method

CN121984295ACN 121984295 ACN121984295 ACN 121984295ACN-121984295-A

Abstract

The invention relates to a square wire paint stripping device and an application method thereof, wherein the square wire paint stripping device comprises a first processing seat, a second processing seat and a triaxial moving platform, the first processing seat and the second processing seat are driven by the triaxial moving platform to synchronously move along a Y axis and a Z axis, the second processing seat is driven by the triaxial moving platform to move along an X axis, a wiring and counting unit and a wire clamping positioning unit are arranged on the first processing seat, a transverse paint stripping assembly, a longitudinal paint stripping assembly and a wire outlet unit are arranged on the second processing seat, and the technical problem of automatically and precisely stripping square enamelled wire four-side insulating paint is creatively solved through the cooperative design of triaxial platform positioning and longitudinal and transverse step paint stripping and dynamic pressing.

Inventors

ZHOU HUAGUO
LIAO JIANYONG
HUANG YEXUAN

Assignees

深圳市合利士智能装备有限公司

Dates

Publication Date: 20260505
Application Date: 20260209

Claims (10)

1. The square wire paint stripping device is characterized by comprising a first processing seat, a second processing seat and a triaxial moving platform, wherein the first processing seat and the second processing seat are driven by the triaxial moving platform to synchronously move along a Y axis and a Z axis, and the second processing seat is driven by the triaxial moving platform to move along an X axis; The transverse paint stripping assembly comprises a first wire passing groove, two transverse paint stripping cutters, a first wire pressing unit and a transverse driving unit, wherein the two transverse paint stripping cutters are driven by the transverse driving unit to strip paint on the upper surface and the lower surface of a square enamelled wire in the first wire passing groove; the longitudinal paint stripping assembly comprises a second wire passing groove, two longitudinal paint stripping cutters, a second wire pressing unit and a longitudinal driving unit, wherein the two longitudinal paint stripping cutters are driven by the longitudinal driving unit to strip paint on the left and right surfaces of the square enamelled wires in the second wire passing groove, the second wire pressing unit is driven by the second linkage unit to synchronously move along with the two longitudinal paint stripping cutters, the square enamelled wires of the wire are pressed and fixed during paint stripping, and the pressing of the square enamelled wires is relieved after the paint stripping is completed.
2. The square wire paint stripping device according to claim 1, wherein the transverse paint stripping assembly comprises a first base, the middle of the first base is transversely provided with the first wire passing groove, one transverse end of the first base is provided with the transverse driving unit, the other transverse end of the first base is provided with a first suction pipe for drawing paint, two transverse paint stripping cutters are arranged on the first base in a sliding mode, and the first wire pressing unit penetrates through the top of the first base.
3. The square wire paint stripping device according to claim 2 is characterized in that the first wire pressing unit comprises a hinged frame, a wire pressing claw is longitudinally hinged to the hinged frame, the first linkage unit comprises a reset tension spring, the transverse driving unit is a transverse cylinder, one end of the reset tension spring is connected with a first base, the other end of the reset tension spring is connected with the upper end of the wire pressing claw, a driving block is connected with a movable end of the transverse cylinder, the driving block is connected with a pressing holding block through a first spring, two transverse paint stripping knives are fixed on the driving block, the pressing holding block is used for pressing the lower end of the wire pressing claw and is provided with two first guide holes for the two transverse paint stripping knives to pass through, a guide block is further arranged in the first base, the pressing holding block and the guide block are respectively positioned on two sides of the first wire passing groove, the two pressing holding blocks are connected with each other through the first spring, two wire stripping knives are arranged on two sides of the first side face to face each other and are arranged on two opposite sides of the first wire stripping groove, and the first side face is provided with a first groove and a second groove is formed in the side opposite to the first groove.
4. The square wire paint peeling device according to claim 1, wherein the longitudinal paint peeling assembly comprises a second base, the second wire passing groove is transversely formed in the middle of the second base, the longitudinal driving unit is arranged at one longitudinal end of the second base, a second suction pipe for drawing paint is arranged at one transverse end of the second base, two longitudinal paint peeling knives are slidably arranged on the second base, and the second wire pressing unit penetrates through the other transverse end of the second base.
5. The square wire paint stripping device according to claim 4, wherein the second wire pressing unit comprises two wire pressing rods transversely penetrating through the second base and a connecting seat for connecting the two wire pressing rods, the connecting seat is connected with the second base through a second spring, a longitudinal roller is rotatably arranged at the tail end of each wire pressing rod, the second linkage unit comprises a longitudinal linkage rod, the longitudinal driving unit comprises a longitudinal cylinder, the linkage rod is driven by the longitudinal cylinder to longitudinally move, a sliding groove corresponding to the linkage rod is arranged on the second base, the two rollers press the linkage rod in the sliding groove, a boss is arranged on one side surface of the linkage rod, which is far away from the sliding groove, an inclined surface is arranged on the edge of the boss, two longitudinal paint stripping knives are arranged in a side-by-side joint mode, a third groove is formed on the surface of the opposite side, the two third grooves are combined to form a second groove, a fourth groove for enabling enamelled wire to longitudinally stripped is arranged at the top of the second groove, and a second cutter head is provided with a second opening for enabling enamelled wire to pass through the fourth groove.
6. The square wire paint stripping device according to claim 1, wherein the wire clamping positioning unit comprises a wire clamping cylinder, a wire passing base is fixed on a shell of the wire clamping cylinder, a wire passing hole channel and a movable hole matched with the movable end of the clamping cylinder are arranged on the wire passing base, the wire passing hole channel is communicated with the movable hole, and a clamping block matched with the movable end of the clamping cylinder to clamp a square enameled wire is fixed on the wire passing base.
7. The square wire paint stripping device according to claim 1, wherein the wiring and counting unit comprises a longitudinal limiting wheel set, a transverse limiting wheel and a counting unit; The longitudinal limiting wheel set comprises two limiting wheels longitudinally arranged side by side and a mounting frame for mounting the two limiting wheels, wherein a wire passing gap is arranged between the two limiting wheels; The transverse limiting wheels are longitudinally arranged, and annular limiting grooves are formed in the surface of the transverse limiting wheels.
8. The square wire paint peeling device according to claim 7, wherein the counting unit comprises a wire passing wheel, a lifting cylinder driving the wire passing wheel to lift and a detection wheel driven by the wire passing wheel to rotate, and a counting sensor for sensing rotation of the detection wheel is arranged on the detection wheel; the wire passing wheel is positioned above the detection wheel and drives the detection wheel to rotate by means of static friction force.
9. The square wire paint peeling apparatus according to claim 1, wherein the three-axis moving platform includes an X-axis moving unit, a Y-axis moving unit, and a Z-axis moving unit; the Y-axis moving unit is driven by the Z-axis moving unit to move along the Z axis; The first processing seat and the X-axis moving unit are driven by the Y-axis moving unit to move along the Y-axis; The second processing seat is driven by the X-axis moving unit to move along the X-axis.
10. A method for applying a square wire paint peeling device to the square wire paint peeling device according to any one of claims 1 to 9, the method comprising: The three-axis moving platform drives the first processing seat and the second processing seat to synchronously move along the Y axis and the Z axis to adjust the wiring transverse position and the wiring longitudinal position, and the three-axis moving platform drives the second processing seat to move along the X axis to control the wire stripping length; The wiring and counting unit receives external square enamelled wires and counts the square enamelled wires, when a paint stripping position set on the square enamelled wires reaches a paint stripping station on the transverse paint stripping assembly, the transverse driving unit of the transverse paint stripping assembly drives two transverse paint stripping cutters to strip paint on the upper surface and the lower surface of the square enamelled wires in the first wire passing groove, the first wire pressing unit is driven by the first linkage unit to synchronously move along with the two transverse paint stripping cutters, the square enamelled wires of the wires are pressed and fixed during paint stripping, and the pressing of the square enamelled wires of the wires is relieved after paint stripping is completed; After the transverse paint stripping is finished, the square enamelled wire continues to move, when the paint stripping position set on the square enamelled wire reaches a paint stripping station on the longitudinal paint stripping assembly, the longitudinal driving unit of the longitudinal paint stripping assembly drives the two longitudinal paint stripping cutters to strip paint on the left and right surfaces of the square enamelled wire in the second wire passing groove, the second wire pressing unit is driven by the second linkage unit to synchronously move along with the two longitudinal paint stripping cutters, the square enamelled wire of the wire is pressed and fixed during paint stripping, and the pressing and holding of the square enamelled wire are released after the paint stripping is finished; When the paint stripping position set on the square enamelled wire reaches the wire cutting position on the subsequent station, the wire clamping positioning unit clamps and fixes the square enamelled wire and releases the clamping of the square enamelled wire after the wire cutting operation is completed.

Description

Square wire paint stripping device and application method Technical Field The invention relates to the technical field of motor processing, in particular to a square wire paint stripping device and an application method. Background In the field of motor manufacturing, an enameled copper wire is generally adopted as a conductor in a conductive coil of a winding, a traditional circular enameled wire takes the dominant role in various motor windings due to a mature manufacturing process, excellent electrical insulation performance and convenient processing characteristics, in order to expose a metal conductor of the winding before connection (such as welding and crimping), an insulating paint layer needs to be removed at the end part of the winding, namely paint stripping, various mature and efficient automatic or semi-automatic paint stripping devices and technologies, such as mechanical scraping, laser ablation, high-temperature melting (thermal stripping), chemical solvent dissolution and the like, have been developed for the circular enameled wire, and the devices and the technologies are generally designed based on the geometric characteristics of a circular section, so that the quick, accurate and controllable paint layer removal of the damage of the conductor can be realized. However, with the continuous development of motor technology towards high efficiency, high power density and high slot filling rate, the square (or rectangular) section enameled wire is increasingly widely applied in application scenes with extremely high requirements on space utilization and electromagnetic performance (such as an electric automobile driving motor, a high-performance servo motor, a compact central motor and the like), and compared with a round enameled wire, the square enameled wire can realize higher conductor filling rate (slot filling rate) in the same stator slot space, thereby effectively reducing winding resistance, copper loss and heat dissipation efficiency, and finally improving the overall efficiency and power density of the motor. Although square enamelled wires have remarkable advantages in terms of electromagnetic and thermal properties, the unique rectangular cross-sectional geometry also brings new and serious challenges to the traditional end treatment process, in particular the paint stripping process: 1. The device is incompatible with the existing device, the geometric shape and the movement track of a core working part (a tool bit, a guide groove, a clamp) of a traditional circular wire paint stripping device (such as a rotary scraper, a V-shaped groove clamp and the like) are optimized for a circular section, the edges and the planes of a rectangular wire cannot be effectively attached or adapted, the paint layer can be removed cleanly and paint scraps remain at the edges or even the planes of a rectangular conductor can be seriously damaged due to uneven stress when the device is forcibly used, the mechanical strength of the conductor is affected, and potential electric fault points can be introduced. 2. The process control difficulty is high, the corner areas of the square lines are difficult to be paint stripping, when the laser or thermal stripping process is applied to the square lines, heat is easy to concentrate at the corner areas, local overheating is possibly caused, copper materials are damaged or adjacent insulation is affected, and mechanical scraping is difficult to ensure that four plane paint layers are cleanly removed, and meanwhile, metal at the corner areas is not damaged. 3. The automatic realization is difficult, the existing automatic paint stripping equipment is difficult to reliably position, clamp and orient the square wire, so that the paint stripping tool can accurately act on a target plane or edge, and the production beat and consistency are affected. Therefore, the existing paint stripping device and technology designed for the round enameled wire generally have the problems of poor compatibility, poor treatment effect, high conductor damage risk, low process stability and the like when the device is applied to the square enameled wire, which becomes one of key process bottlenecks for restricting the large-scale application and automatic production of the square enameled wire in high-end motors, particularly compact high-performance motors such as middle-mounted motors and the like, and the development of a brand-new paint stripping device special for the geometric and material characteristics of the square enameled wire is urgently needed to solve the bottleneck. Disclosure of Invention The technical problem to be solved by the invention is to provide a square wire paint stripping device and an application method of the square wire paint stripping device aiming at the defects in the prior art. The technical scheme adopted for solving the technical problems is as follows: The square wire paint stripping device comprises a first processing seat, a second processing