Positioning tooling and positioning bending method for lead-out wires after stator core wire embedding

Abstract

The present invention discloses a lead-out wire positioning tool and a positioning and bending method after the stator core is embedded with wires, which solves the problems of inaccurate positioning of the spliced ​​wire ends of the existing lead-out wires, uneven distribution at both ends of the stator core, and inadequate bending. A double annular support plate (6) is installed on a tooling ring (5), the inner end of the left positioning strip block (11) and the inner end of the right positioning strip block (12) are hinged together through a hinge pin (13), the left positioning strip block and the right positioning strip block (12) are brought close together, the inner ring lead-out wire (30) is set in the inner ring lead-out wire positioning through-hole (24), and the outer ring lead-out wire (29) is set in the outer ring lead-out wire positioning through-hole (25), so as to achieve accurate positioning of the two lead-out wires, and the wire ends of the inner ring lead-out wire are sheared according to the splicing length and bent outwards through an inner ring lead-out wire bending table. The shearing and bending of the wire ends after positioning are facilitated, providing conditions for automated production.

Description

Technical Field

[0001] The invention relates to a positioning tool, in particular to a tool for positioning lead wires after the stator core of a generator is wire-embedded, and a method for positioning and bending the lead wires. Background Art

[0002] Marine generators are used in ship power systems and are important supporting equipment for ship power systems. Among them, 3MW and 5MW are in great demand and need to be mass-produced. This type of electronic core is made of stamped selenium steel sheets stacked together. Positioning rings are provided at both ends of the cylindrical stacked core, and ribs are evenly spaced on the outer side of the cylindrical core. The two positioning rings and the spaced ribs form the stator core part. A coil embedding groove is provided on the inner side of the stator core, and the copper flat wire coil is embedded in the coil groove on the inner side of the stator core. Since the stator coil is to form a four-pole three-phase, the lead wires of the inner coil and the lead wires of the outer coil are led out along the arc surface on both sides of the stator core. According to the process requirements, the on-site operators , the lead wires of the corresponding inner coil and the lead wires of the outer coil need to be cut and bent respectively, and then the corresponding wire ends are fixedly connected together, and the two wire ends fixedly connected together are welded to complete the welding assembly of the stator core coil part. After the coil ends are tied with insulating tape, the assembled stator core is assembled into the machine base; the prior art performs positioning, shearing and bending work on a pair of spliced ​​welding heads, and the operator manually positions, shears and bends them according to operating experience. There are defects such as inaccurate positioning of the spliced ​​wire heads, uneven distribution at both ends of the stator core, and subsequent shaping is required. The defects of inadequate bending directly affect the effect of the subsequent welding process and also reduce the assembly quality of the stator core. Summary of the invention

[0003] The present invention provides a lead-out wire positioning tool and a positioning bending method after the stator core is embedded with wires, which solves the technical problems of inaccurate positioning of the spliced ​​wire joints of the existing lead-out wires, uneven distribution at both ends of the stator core and inadequate bending, and provides a positioning basis for realizing automatic shearing, bending and welding of the stator coil lead-out wires.

[0004] The present invention solves the above technical problems through the following technical solutions:

[0005] A positioning fixture for lead-out wires after stator core wire embedding comprises a servo roller bracket, a stator core is movably arranged on the servo roller bracket, the stator core is movably mounted on the roller of the servo roller bracket through fixture rings on both sides, a double annular support plate for installing a lead-out wire positioning and bending fixture is connected to the fixture ring, hinge shaft pin penetration holes are evenly arranged on the inner ring plate of the double annular support plate, positioning sleeve clamping wedge platforms are evenly arranged on the outer ring plate of the double annular support plate, an arc-shaped through hole for the lead-out wire to pass through is arranged between the inner ring plate and the outer ring plate, and a left positioning The inner end of the left positioning strip block and the inner end of the right positioning strip block are hinged together through a hinge pin, and the hinge pin is inserted into the hinge pin insertion hole; the left side surface of the left positioning strip block is respectively provided with a left groove for positioning the inner ring lead-out wire and a left groove for positioning the outer ring lead-out wire, and the left bending table for the inner ring lead-out wire and the left bending table for the outer ring lead-out wire are respectively provided on the top surface of the left positioning strip block, and a left zigzag step matched with the clamping sleeve is fixedly provided on the front side surface of the left positioning strip block; the right side groove for positioning the inner ring lead-out wire and the right groove for positioning the outer ring lead-out wire are respectively provided on the left side surface of the right positioning strip block The right side groove of the left positioning strip block is formed, and the right bending platform of the inner ring lead-out wire and the right bending platform of the outer ring lead-out wire are respectively arranged on the top surface of the right positioning strip block, and a right zigzag step matched with the clamping sleeve is fixedly arranged on the front side surface of the right positioning strip block; after the right side surface of the left positioning strip block and the left side surface of the right positioning strip block are close to each other, the left side groove of the inner ring lead-out wire positioning and the right side groove of the inner ring lead-out wire positioning form an inner ring lead-out wire positioning through-hole, the left side groove of the outer ring lead-out wire positioning and the right side groove of the outer ring lead-out wire positioning form an outer ring lead-out wire positioning through-hole, and the left bending platform of the inner ring lead-out wire and the right bending platform of the inner ring lead-out wire are close to each other to form an inner ring lead The lead-out bending platform, the left bending platform for the outer ring lead-out wire and the right bending platform for the outer ring lead-out wire are connected together to form an outer ring lead-out wire bending platform; two positioning long strip blocks are movably plugged on the positioning sleeve clamping wedge platform for connection and fixing, the clamping sleeve is inserted on the positioning sleeve clamping wedge platform through a wedge-shaped groove arranged on the bottom surface, a zigzag step plug-in groove is arranged on the inner side end of the bottom surface of the clamping sleeve, and a left zigzag step and a right zigzag step are plugged in the zigzag step plug-in groove; the inner ring lead-out wire of the stator core is arranged in the inner ring lead-out wire positioning insertion hole, and the outer ring lead-out wire of the stator core is arranged in the outer ring lead-out wire positioning insertion hole.

[0006] Positioning bending fixtures of left and right positioning strips that are movably spliced ​​together are arranged at equal intervals between the inner and outer ring plates on the double annular support plate. The number of the positioning bending fixtures is the same as the number of splicing pairs of the inner and outer ring lead wires.

[0007] A method for positioning and bending a lead-out wire by a positioning tool for a lead-out wire after the stator core is wire-embedded, comprising the following steps:

[0008] The first step is to install the double annular support plate on the tooling ring, and make the central axis of the double annular support plate coincide with the central axis of the tooling ring;

[0009] Step 2: hinge the inner end of the left positioning strip block and the inner end of the right positioning strip block together through a hinge pin, and insert the hinge pin into the hinge pin insertion hole;

[0010] The third step is to connect the left positioning strip block and the right positioning strip block together, so that the inner ring lead wire is set in the inner ring lead wire positioning hole, and the outer ring lead wire is set in the outer ring lead wire positioning hole, so as to achieve accurate positioning of the two lead wires; plug the clamping sleeve into the positioning sleeve clamping wedge platform, and plug the zigzag step plugging groove into the left zigzag step and the right zigzag step;

[0011] Step 4: Cut the ends of the inner ring lead wires according to the splicing length, and bend them outwards through the inner ring lead wire bending table; cut the ends of the outer ring lead wires according to the splicing length, and bend them inwards through the outer ring lead wire bending table.

[0012] The tooling of the present invention realizes accurate positioning of the inner ring lead wire and the outer ring lead wire of the motor stator coil, facilitates the shearing and bending operations of the wire ends after positioning, and provides conditions for the automation of the entire production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0014] Figure 2 This is a diagram showing the relationship between the lead-out wire, the double annular support plate 6 and the positioning and bending tooling of the present invention;

[0015] Figure 3 It is a schematic structural diagram of the double annular support plate 6 of the present invention;

[0016] Figure 4 It is a diagram showing the matching relationship between the left positioning strip block 11, the right positioning strip block 12 and the clamping sleeve 26 of the present invention;

[0017] Figure 5 It is a structural schematic diagram of the left positioning strip block 11 of the present invention;

[0018] Figure 6 It is a structural schematic diagram of the right positioning strip block 12 of the present invention;

[0019] Figure 7 It is a schematic structural diagram of the clamp sleeve 26 of the present invention;

[0020] Figure 8 It is a schematic structural diagram of the positioning sleeve clamping wedge-shaped platform 10 of the present invention. DETAILED DESCRIPTION

[0021] The present invention is described in detail below in conjunction with the accompanying drawings:

[0022] A positioning fixture for lead-out wires after stator core wire embedding comprises a servo roller bracket 1, a stator core 2 is movably arranged on the servo roller bracket 1, positioning rings 3 are fixedly arranged at both ends of the stator core 2, rib plates 4 are arranged at equal intervals of arc on the outer surface of the stator core 2, a fixture ring 5 is arranged on the rib plates 4 outside the positioning ring 3, the stator core 2 is movably mounted on the roller of the servo roller bracket 1 through the fixture rings 5 ​​on both sides, a double annular support plate 6 for installing a lead-out wire positioning bending fixture is connected to the fixture ring 5, hinge shaft pin penetration holes 9 are equidistantly arranged on the inner ring plate 7 of the double annular support plate 6, positioning sleeve clamping wedge platforms 10 are equidistantly arranged on the outer ring plate 8 of the double annular support plate 6, and positioning sleeve clamping wedge platforms 10 are arranged on the inner ring plate 7 and the outer ring plate 8. A circular arc through hole 31 is provided between the inner ring plate 7 and the outer ring plate 8 for the lead wire to pass through, a left positioning strip block 11 and a right positioning strip block 12 are provided between the inner ring plate 7 and the outer ring plate 8, the inner side end of the left positioning strip block 11 and the inner side end of the right positioning strip block 12 are hinged together through a hinge pin 13, and the hinge pin 13 is connected to the hinge pin through hole 9; on the right side surface of the left positioning strip block 11, a left groove 14 for positioning the inner ring lead wire and a left groove 15 for positioning the outer ring lead wire are respectively provided, and on the top surface of the left positioning strip block 11, a left bending platform 16 for the inner ring lead wire and a left bending platform 17 for the outer ring lead wire are respectively provided, and a left zigzag step 18 cooperating with the snap-on sleeve is fixedly provided on the front side surface of the left positioning strip block 11; on the left side surface of the right positioning strip block 12 The right side groove 19 for positioning the inner ring lead-out wire and the right side groove 20 for positioning the outer ring lead-out wire are respectively arranged on the top surface of the right positioning strip block 12, the right bending platform 21 for the inner ring lead-out wire and the right bending platform 22 for the outer ring lead-out wire are respectively arranged on the top surface of the right positioning strip block 12, and a right zigzag step 23 cooperating with the snap-on sleeve is fixedly arranged on the front side surface of the right positioning strip block 12; after the right side surface of the left positioning strip block 11 and the left side surface of the right positioning strip block 12 are abutted together, the left side groove 14 for positioning the inner ring lead-out wire and the right side groove 19 for positioning the inner ring lead-out wire form an inner ring lead-out wire positioning through-hole 24, the left side groove 15 for positioning the outer ring lead-out wire and the right side groove 20 for positioning the outer ring lead-out wire form an outer ring lead-out wire positioning through-hole 25, the left bending platform 16 for the inner ring lead-out wire and the right bending platform 2 1 are close together to form an inner ring lead-out bending platform, and the outer ring lead-out left bending platform 17 and the outer ring lead-out right bending platform 22 are close together to form an outer ring lead-out bending platform; two positioning long strip blocks are movably plugged into the positioning sleeve clamping wedge-shaped platform 10 for connection and fixing, and the clamping sleeve 26 is inserted into the positioning sleeve clamping wedge-shaped platform 10 through a wedge-shaped groove 28 arranged on the bottom surface, and a zigzag step plugging groove 27 is arranged on the inner side end of the bottom surface of the clamping sleeve 26, and the left zigzag step 18 and the right zigzag step 23 are inserted into the zigzag step plugging groove 27; the inner ring lead-out wire 30 of the stator core 2 is arranged in the inner ring lead-out wire positioning penetration hole 24, and the outer ring lead-out wire 29 of the stator core 2 is arranged in the outer ring lead-out wire positioning penetration hole 25.

[0023] Positioning and bending fixtures of the left positioning strip 11 and the right positioning strip 12 that are movably spliced ​​together are arranged at equal intervals between the inner ring plate 7 and the outer ring plate 8 on the double ring support plate 6. The number of the positioning and bending fixtures is the same as the number of splicing pairs of the inner ring lead wire 30 and the outer ring lead wire 29.

[0024] A method for positioning and bending a lead-out wire by a positioning tool for a lead-out wire after the stator core is wire-embedded, comprising the following steps:

[0025] The first step is to install the double annular support plate 6 on the tooling ring 5, and make the central axis of the double annular support plate 6 coincide with the central axis of the tooling ring 5;

[0026] Step 2: hinge the inner end of the left positioning strip 11 and the inner end of the right positioning strip 12 together through the hinge pin 13, and insert the hinge pin 13 into the hinge pin insertion hole 9;

[0027] The third step is to bring the left positioning strip block 11 and the right positioning strip block 12 close together, so that the inner ring lead wire 30 is set in the inner ring lead wire positioning penetration hole 24, and the outer ring lead wire 29 is set in the outer ring lead wire positioning penetration hole 25, so as to achieve accurate positioning of the two lead wires; plug the clamping sleeve 26 into the positioning sleeve clamping wedge-shaped platform 10, and plug the zigzag step plugging groove 27 into the left zigzag step 18 and the right zigzag step 23;

[0028] Step 4: After cutting the ends of the inner ring lead wires 30 according to the splicing length, bend them outwards through the inner ring lead wire bending station; after cutting the ends of the outer ring lead wires 29 according to the splicing length, bend them inwards through the outer ring lead wire bending station.

Claims

1. A positioning fixture for lead-out wires after stator core wire embedding, comprising a servo roller bracket (1), on which a stator core (2) is movably arranged, and the stator core (2) is movably mounted on the roller of the servo roller bracket (1) through fixture rings (5) on both sides, characterized in that: A double annular support plate (6) for installing a lead-out wire positioning and bending tool is connected to the tool ring (5); hinge pin insertion holes (9) are arranged at equal intervals on the inner ring plate (7) of the double annular support plate (6); positioning sleeve clamping wedge-shaped platforms (10) are arranged at equal intervals on the outer ring plate (8) of the double annular support plate (6); an arc-shaped through hole (31) for the lead-out wire to pass through is arranged between the inner ring plate (7) and the outer ring plate (8); a left positioning strip block (11) and a right positioning strip block (12) are arranged between the inner ring plate (7) and the outer ring plate (8); the inner side end of the left positioning strip block (11) and the inner side end of the right positioning strip block (12) are hinged together by a hinge pin (13); the hinge pin (13) is inserted into the hinge pin (13) and the hinge pin (13) is inserted into the hinge pin (13). The shaft pin is inserted into the connecting hole (9); the left side surface of the left positioning strip block (11) is respectively provided with a left groove (14) for positioning the inner ring lead wire and a left groove (15) for positioning the outer ring lead wire; the top surface of the left positioning strip block (11) is respectively provided with a left bending platform (16) for the inner ring lead wire and a left bending platform (17) for the outer ring lead wire; a left zigzag step (18) which cooperates with the clamping sleeve is fixedly provided on the front side surface of the left positioning strip block (11); the right side groove (19) for positioning the inner ring lead wire and a right side groove (20) for positioning the outer ring lead wire are respectively provided on the left side surface of the right positioning strip block (12); the right bending platform (21) for the inner ring lead wire and the right bending platform (22) for the outer ring lead wire are respectively provided on the top surface of the right positioning strip block (12). The right zigzag step (23) matched with the clamping sleeve is fixedly arranged on the front side of the right positioning strip block (12); after the right side of the left positioning strip block (11) and the left side of the right positioning strip block (12) are abutted together, the inner ring lead wire positioning left groove (14) and the inner ring lead wire positioning right groove (19) form an inner ring lead wire positioning through-hole (24), the outer ring lead wire positioning left groove (15) and the outer ring lead wire positioning right groove (20) form an outer ring lead wire positioning through-hole (25), the inner ring lead wire left bending platform (16) and the inner ring lead wire right bending platform (21) are abutted together to form an inner ring lead wire bending platform, and the outer ring lead wire left bending platform (17) and the outer ring lead wire right bending platform (21) are abutted together to form an inner ring lead wire bending platform. The platforms (22) are close together to form an outer ring lead-out bending platform; two positioning long strip blocks are movably plugged into the positioning sleeve clamping wedge platform (10) for connection and fixing, and the clamping sleeve (26) is inserted into the positioning sleeve clamping wedge platform (10) through a wedge groove (28) provided on the bottom surface; a zigzag step insertion groove (27) is provided at the inner side end of the bottom surface of the clamping sleeve (26), and a left zigzag step (18) and a right zigzag step (23) are inserted into the zigzag step insertion groove (27); the inner ring lead-out wire (30) of the stator core (2) is arranged in the inner ring lead-out wire positioning insertion hole (24), and the outer ring lead-out wire (29) of the stator core (2) is arranged in the outer ring lead-out wire positioning insertion hole (25).

2. A positioning tool for lead-out wires after stator core wire embedding according to claim 1, characterized in that: Positioning bending fixtures of a left positioning strip (11) and a right positioning strip (12) that are movably spliced ​​together are arranged at equal intervals of arc between the inner ring plate (7) and the outer ring plate (8) on the double ring support plate (6), and the number of the positioning bending fixtures is the same as the number of splicing pairs of the inner ring lead wire (30) and the outer ring lead wire (29).

3. A method for positioning and bending a lead wire by using a positioning tool for a lead wire after a stator core is embedded with wires as claimed in claim 1, comprising the following steps: The first step is to install the double annular support plate (6) on the tooling ring (5) so that the central axis of the double annular support plate (6) coincides with the central axis of the tooling ring (5); Step 2: hinge the inner end of the left positioning strip (11) and the inner end of the right positioning strip (12) together through the hinge pin (13), and insert the hinge pin (13) into the hinge pin insertion hole (9); The third step is to bring the left positioning strip (11) and the right positioning strip (12) together, so that the inner ring lead wire (30) is set in the inner ring lead wire positioning through hole (24), and the outer ring lead wire (29) is set in the outer ring lead wire positioning through hole (25), so as to achieve accurate positioning of the two lead wires; plug the clamping sleeve (26) into the positioning sleeve clamping wedge platform (10), and plug the zigzag step plugging groove (27) into the left zigzag step (18) and the right zigzag step (23); Step 4: After the ends of the inner lead wires (30) are cut according to the splicing length, they are bent outwards through the inner lead wire bending table; after the ends of the outer lead wires (29) are cut according to the splicing length, they are bent inwards through the outer lead wire bending table.

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