CN-116799715-B - Wire end paint removing device for rectangular enameled wire hairpin

Abstract

The utility model provides a wire end paint removal device of rectangle enameled wire hairpin, including the paint scraping mechanism, paint scraping mechanism includes the left side paint scraping mechanism that is independent respectively, right side paint scraping mechanism, above paint scraping mechanism, bottom surface paint scraping mechanism, each paint scraping mechanism all includes copper line positioning mechanism, feed mechanism, tool bit guiding mechanism, and each paint scraping mechanism all is equipped with the line passageway that passes that highly is the same, copper line positioning mechanism installs on first mount pad, copper line positioning mechanism is by driving cylinder drive displacement pair flat copper line location, tool bit guiding mechanism passes through movable seat and first mount pad sliding fit, movable seat is by servo motor drive displacement messenger paint scraping knife and flat copper line contact or leave, feed mechanism and movable seat horizontal motion sliding fit and vertical positioning, feed mechanism is by electric cylinder drive displacement messenger paint scraping knife along flat copper line axial motion removal paint skin, paint scraping mechanism is used for setting up at four stations of flat copper line hairpin's conveyer respectively for removing the paint skin in proper order to four sides of flat copper line hairpin.

Inventors

• SHAO FAN
• ZHANG XIAOBING
• ZHOU LIN

Assignees

• 成都华川电装有限责任公司

Dates

Publication Date

20260508

Application Date

20230531

Claims (6)

1. 1. The wire end paint removing device for rectangular enameled wire hairpins comprises paint scraping mechanisms, and is characterized in that the paint scraping mechanisms comprise a left paint scraping mechanism, a right paint scraping mechanism, an upper paint scraping mechanism and a bottom paint scraping mechanism which are independent respectively, each paint scraping mechanism comprises a copper wire positioning mechanism, a feed mechanism and a cutter position adjusting mechanism, each paint scraping mechanism is provided with a wire passing channel (1) of a flat copper wire (8) with the same height, the copper wire positioning mechanisms are arranged on a first mounting seat (2), the copper wire positioning mechanisms are driven by a driving cylinder (3) to move to position the flat copper wire (8), the cutter position adjusting mechanisms are driven by a servo motor (5) to move so that paint scraping knives (6) are contacted with or separated from the flat copper wire (8), the feed mechanism is horizontally and vertically matched with the moving seat (4), the feed mechanism is driven by an electric cylinder (14) to move so that the paint scraping knives (6) move along the flat copper wire (8) to move axially to the bottom paint scraping mechanism, and the four copper wire hairpins are sequentially arranged on the four sides of the hairpins, and the four copper wire hairpins are sequentially arranged on the hairpins; The copper wire positioning mechanism of the left paint scraping mechanism comprises a copper wire length positioning block (10) and a copper wire compression block (9), the copper wire length positioning block (10) is driven by an adjusting cylinder (12) arranged on a first mounting seat (2), the copper wire compression block (9) is driven by a driving cylinder (3) arranged on the first mounting seat (2), a moving seat (4) of the cutter position adjusting mechanism is in sliding fit with the first mounting seat (2) through a horizontal guide rail (26) extending transversely, a servo motor (5) is arranged at the lower end of the first mounting seat (2), a cam (33) is arranged on a shaft of the servo motor (5) and is matched with a strip-shaped hole (34) formed in the moving seat (4), the cutter feeding mechanism comprises a cutter seat (15), a paint scraper (6) and a connecting mechanism (13), the paint scraper (6) is arranged on the cutter seat (15), the cutter seat (6) faces the left surface of the flat copper wire (8), the cutter seat (15) is in sliding fit with the moving seat (4) through a third guide rail (21) extending axially, the cutter seat (15) is in sliding fit with the moving seat (4), the cutter seat (15) is connected with the second electric cylinder (13) through a sliding fit mechanism (27) and the second electric connecting mechanism (13), the axial moving seat (27) is in sliding fit with the second mounting seat (7) through the second guide rail (17) and is connected with the electric cylinder (14) through the shaft, and the horizontal moving seat (18) is in sliding fit with the axial moving seat (27) through the first guide rail (16) and is connected with the tool apron (15).
2. 2. The wire end paint removing device for rectangular enameled wire hairpin of claim 1 is characterized in that a limit groove (19) for fixing the flat copper wire (8) is formed in the lower end of the copper wire compression block (9), the width of the limit groove (19) is smaller than that of the flat copper wire (8), and the left side of the flat copper wire (8) is exposed out of the limit groove (19).
3. 3. The device for removing the wire end of the rectangular enameled wire hairpin according to claim 1, wherein the right paint scraping mechanism and the left paint scraping mechanism are identical in structure and are arranged in a mirror image mode, and a paint scraping knife (6) faces the right side of the copper wire.
4. 4. The wire end paint removing device for rectangular enameled wire hairpin according to claim 1, characterized in that the copper wire positioning mechanism of the upper paint scraping mechanism comprises a copper wire length positioning block (10), the copper wire length positioning block (10) is driven by an adjusting cylinder (12) arranged on the first mounting seat (2), the copper wire length positioning block (10) is connected with the adjusting cylinder (12) through a plane mechanism (20), and the upper end of the copper wire length positioning block (10) is provided with a copper wire stop block (25) for abutting against the tail end of a flat copper wire (8); The utility model provides a scraper blade, including cutter frame (15), scraper blade (6), coupling mechanism (13), scraper blade (6) are installed on cutter frame (15), scraper blade (6) face on flat copper line (8), cutter frame (15) are through axial extension's third guide rail (21) and movable seat (4) sliding fit, cutter frame (15) are connected through coupling mechanism (13) with electric jar (14) of installing on second mount pad (7), coupling mechanism (13) include axial displacement seat (27) and vertical displacement seat (28) set up bar hole (34) cooperation, scraper blade (6) are installed on cutter frame (15), scraper blade (6) face on flat copper line (8), cutter frame (15) are through coupling mechanism (13) and second mount pad (7) on install electric jar (14), coupling mechanism (13) include axial displacement seat (27) and vertical displacement seat (28), cutter blade (27) are through fourth guide rail (21) and axial displacement seat (4) sliding fit.
5. 5. The wire end paint removing device for rectangular enameled wire hairpin according to claim 1, wherein the copper wire positioning mechanism of the bottom paint scraping mechanism comprises a copper wire length positioning block (10), the copper wire length positioning block (10) is driven by a driving cylinder (3) and an adjusting cylinder (12) which are arranged on a first mounting seat (2), the lower end of the copper wire length positioning block (10) is provided with a copper wire stop block (25) for abutting against the tail end of a flat copper wire (8), a moving seat (4) of the cutter position adjusting mechanism is in sliding fit with the first mounting seat (2) through a vertical guide rail (11) which extends longitudinally, the first mounting seat (2) is an L-shaped mounting seat formed by an upright plate and a horizontal plate, a servo motor (5) is arranged at the lower end of the upright plate of the first mounting seat (2), a cam (33) is arranged on the shaft of the servo motor (5) and is matched with a strip-shaped hole (34) arranged on the moving seat (4), the cutter feeding mechanism comprises a cutter seat (15), a paint scraper (6) and a connecting mechanism (13), the cutter seat (6) is arranged on the cutter seat (6) and is axially matched with the third guide rail (21) through the axial direction of the cutter seat (4), the tool apron (15) is connected with an electric cylinder (14) arranged on the second mounting seat (7) through a connecting mechanism (13), the connecting mechanism (13) comprises an axial moving seat (27) and a vertical moving seat (28), the axial moving seat (27) is connected with the electric cylinder (14) through a shaft, and the vertical moving seat (28) is in sliding fit with the axial moving seat (27) through a sixth guide rail (24) and is connected with the tool apron (15).
6. 6. The wire end paint removing device for rectangular enameled wire hairpins according to claim 1, wherein the conveying device for the rectangular enameled wire hairpins comprises a synchronous pulley (29), synchronous belts (30) and copper wire clamping blocks (31), the periphery of the two synchronous pulleys (29) is sleeved with the synchronous belts (30), the copper wire clamping blocks (31) are arranged on the outer surfaces of the synchronous belts (30), the conveying device for the rectangular enameled wire hairpins is arranged in two groups in parallel, and the flat copper wires (8) are fixed in grooves (32) of the copper wire clamping blocks (31) at symmetrical positions.

Description

Wire end paint removing device for rectangular enameled wire hairpin Technical Field The invention relates to the technical field of motor manufacturing, in particular to a wire end paint removing device for rectangular enameled wire hairpin. Background The stator is an important component of the motor, under the same volume, a plurality of stators adopt flat copper wires (namely rectangular enameled wires) to manufacture hairpin windings to replace round wire windings, and because the sections of the flat copper wires are rectangular, the flat copper wire windings can improve the power of the stator and the slot filling rate of an iron core, generally, rectangular enameled wires are inserted into slots of the iron core by hairpin, and exposed copper wire heads are welded to form a complete coil winding. When two adjacent copper wire ends are welded, the lacquer skin of the wire end of each rectangular enameled wire needs to be removed, otherwise poor welding and even incapability of welding between the two wire ends can be caused, so that the conductivity is reduced, and the lacquer skin of the welding end of the wire end of the rectangular enameled wire can be removed completely, which is very important for a stator winding. The conventional mechanical scraper paint removing device is mainly designed for cylindrical enameled wires, and the mechanical scraper paint removing device for the cylindrical enameled wires cannot be used for removing the flat copper enameled wires. There is also a device for removing paint from flat copper enameled wire, which usually adopts two symmetrically arranged paint scrapers to simultaneously fold and scrape the paint on two sides of the flat copper enameled wire, and then rotates for 90 degrees to scrape the paint on the other two sides. However, the position accuracy requirement of the two scrapers is very high, if the position accuracy of the two paint scraping cutting edges is inconsistent, the flat copper enameled wire is easy to bend due to uneven stress during paint scraping, so that the paint skin of the flat copper enameled wire cannot be removed, the welding of the hairpin wire ends is affected, and the conductive efficiency is seriously affected. How to avoid the problems during the paint removal of the flat copper enameled wire ends becomes a key point of research by people. Disclosure of Invention The invention aims at solving the problems in the prior art and provides a wire head paint removing device for rectangular enameled wire hairpins, which can independently scrape paint on the left, right, upper and lower surfaces of a flat copper wire by arranging four paint scraping mechanisms, namely a left paint scraping mechanism, a right paint scraping mechanism, an upper paint scraping mechanism and a bottom paint scraping mechanism, wherein copper wire positioning mechanisms, cutter position adjusting mechanisms and cutter feeding mechanisms are arranged in the four paint scraping mechanisms, and independent driving equipment is arranged in each copper wire positioning mechanism, each cutter position adjusting mechanism and each cutter feeding mechanism, so that the precision of paint scraping is improved. The purpose of the invention is realized in the following way: The utility model provides a wire end paint removal device of rectangle enameled wire hairpin, includes paint scraping mechanism, paint scraping mechanism includes independent left side paint scraping mechanism, right side paint scraping mechanism, above paint scraping mechanism, bottom surface paint scraping mechanism respectively, and each paint scraping mechanism all includes copper line positioning mechanism, feed mechanism, tool bit guiding mechanism to each paint scraping mechanism all is equipped with the wire passageway of highly the same flat copper line, copper line positioning mechanism installs on first mount pad, copper line positioning mechanism is by driving cylinder drive displacement pair flat copper line location, tool bit guiding mechanism passes through movable seat and first mount pad sliding fit, movable seat is by servo motor drive displacement messenger paint scraping knife and flat copper line contact or is left, feed mechanism and movable seat horizontal movement sliding fit and vertical positioning, feed mechanism is by electric cylinder drive displacement messenger paint scraping knife along flat axial movement removal paint skin, left side paint scraping mechanism, right side paint scraping mechanism, top surface paint scraping mechanism are used for setting up four to the hairpin copper line of flat copper line conveyer respectively for four pairs of hairpin copper line side in proper order. The copper wire positioning mechanism of the left paint scraping mechanism comprises a copper wire length positioning block and a copper wire compression block, wherein the copper wire length positioning block is driven by an adjusting cylinder arranged on a first mounting seat, t