Starter rotor wire plugging device

Abstract

The invention provides starter rotor wire plugging equipment, and belongs to the technical field of starter assembly equipment. The technical problem that an existing starter rotor wire plugging device is insufficient in reliability is solved. The starter rotor wire plugging equipment comprises a mounting rack, the mounting rack is connected with a lifting seat and a positioning turntable, the side surface of the lifting seat is provided with a broken line plate, the lifting seat is also connected with a push rod, the lower end of the push rod is in a tubular shape with an open bottom, and the periphery of the middle section of the push rod is provided with an air inlet communicated with the inner cavity of the push rod. The periphery of the lower end of the push rod is further provided with a scrap blowing hole communicated with an inner cavity of the push rod, the scrap blowing hole is arranged downwards and outwards, the fold line plate is provided with a vertically-through guide hole, the inner wall of the guide hole is provided with a vent hole communicated to the outer side surface of the lifting base, and the push rod is vertically inserted into the guide hole. And when the push rod extends out of the guide hole and moves downwards to approach the positioning turntable, the air inlet is butted and communicated with the vent hole. According to the invention, the paint film of the enameled copper wire in the assembly process can be effectively protected, and the reliability of rotor assembly is ensured.

Description

Technical Field

[0001] The invention belongs to the technical field of starter assembly equipment and relates to a starter rotor wire insertion device. Background Art

[0002] Rotor threading is a critical step in motor production. Domestically, the process involves cutting and bending rolls of enameled wire using small dies. The wires are then manually split, twisted, and inserted into rotor slots. This necessitates the design of rotor threading equipment to liberate productivity.

[0003] For example, the patent with authorization announcement number CN201985708U discloses an automatic unloading, U-bending and lossless wire pushing and insertion machine for enameled copper wire used in the production of automobile starter armatures. It consists of a cylinder A, a cylinder B, a roller group, a U-forming mold, an insertion rod, a movable plate, a left vertical plate, a right vertical plate, etc. A cylinder B is installed between the left vertical plate and the right vertical plate, a fixed plate A is installed on the cylinder B, a slide groove A is provided on the left vertical plate and the right vertical plate, a movable plate is installed in the slide groove A, a slide groove B is provided on the movable plate, an insertion rod guide block is fixed on the movable plate, a U-forming mold is installed below the guide block, and an insertion rod fixing block is installed above the guide block.

[0004] The above-mentioned equipment can automatically realize the wiring assembly of the starter, but there are still some shortcomings: there are often processed metal chips left in the slot of the starter rotor. When a small amount of enameled copper wire is bent and pressed into the bottom of the slot, it will interfere with the metal chips and cause damage to the paint film, affecting the reliability of the starter rotor. In order to improve the above problems, general technical personnel in this field usually consider: 1. Before plugging in the wire, clean the processing debris inside the rotor slot in advance with a cleaning tool; 2. Set up a vibrating platform, place the rotor slot downward before plugging in the wire, and vibrate it to make the metal chips fall out, and then perform the wire plugging operation. Summary of the Invention

[0005] In view of the above problems existing in the prior art, the present invention provides a starter rotor wire insertion device. The technical problem to be solved by the present invention is that the wire insertion reliability of the prior art device is insufficient.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] The top end face of said sliding arm is provided with a toothed connecting strip which is cooperatively connected with said toothed connecting strip, and the toothed connecting strip is connected with said toothed connecting strip to form a monolithic structure, wherein said toothed connecting strip is connected with said toothed connecting strip to form a monolithic structure.

[0008] The folding plate moves downward to bend the enameled copper wire placed horizontally on the mounting frame and finally forms a U shape in conjunction with the guide of the mounting frame. After that, the push rod moves downward independently to push the bent enameled copper wire into the slot of the rotor placed on the positioning turntable below; by setting the lower end of the push rod to be tubular, and providing an air inlet on the outer periphery of the middle section of the push rod to communicate with the tubular inner cavity, and at the same time providing an inclined chip blowing hole on the outer periphery of the lower end of the push rod, and the push rod is inserted into the guide hole of the folding plate, and then providing an air vent on the inner wall of the guide hole to communicate with the outer side of the lifting seat for introducing high-pressure gas, which is conducive to the downward movement of the push rod and driving the bent enameled copper wire. Before the enameled copper wire is inserted into the bottom of the rotor slot, the air inlet and the vent are connected, so that the chip blowing hole at the lower end of the push rod sprays gas downward near the bottom of the slot to blow the metal chips on the bottom of the slot to the corner, thereby avoiding hard contact between the U-shaped bottom of the enameled copper wire and the metal chips in the center of the bottom of the slot, thereby avoiding damage to the paint film. In other stages, the vent port can be covered on the periphery of the push rod to avoid waste of air source, and at this time, the air flow ejected from the open lower end of the push rod can push the enameled copper wire to separate from the push rod and move it down into place, thereby avoiding hard contact that damages the paint film when the push rod presses the enameled copper wire into place, effectively improving the reliability of the rotor.

[0009] In the aforementioned starter rotor wire insertion device, the chip blowing hole is located on the side of the push rod facing away from the lifting seat. This fully utilizes the strip-shaped cross-section of the rotor slot, allowing the airflow from the chip blowing hole to spread from the center of the slot cross-section and blow metal chips to the ends, greatly reducing the probability of metal chips coming into contact with the U-shaped enameled copper wire.

[0010] In the above-mentioned starter rotor plug-in device, a number of magnet columns are embedded in the outer periphery of the lower end of the push rod. The magnet columns are all lower than the position of the chip blowing hole. The bottom surface of the folding plate has a chip storage groove arranged around the lower end of the guide hole. The inner diameter of the chip storage groove is slightly larger than the radial dimension of the guide hole. In this way, after the lower end of the push rod is inserted into the slot of the rotor, the magnet columns can absorb some of the metal chips that fly up due to the airflow to the outer periphery of the push rod, reducing the impact of the metal chips in the slot and preventing the metal chips from falling back again. When the push rod is reset and retracted into the guide hole, the absorbed metal chips can be scraped into the chip storage groove for accumulation, which will not affect the normal folding and plug-in operations. Since the amount of absorbed metal chips is often small, the staff only needs to clean the chip storage groove regularly.

[0011] In the above-mentioned starter rotor plugging device, the port connecting the vent hole and the guide hole is flared. This helps to ensure stable and reliable connection between the vent hole and the air inlet hole before the push rod moves down to its position, thereby ensuring stable purge function.

[0012] In the aforementioned starter rotor wire insertion device, the mounting frame comprises two parallel vertical plates, each with vertically arranged, symmetrically arranged strip-shaped holes. The lift seat is slidably connected between the two vertical plates. The vertical plates guide and constrain the lift seat's movement, ensuring stable movement. The lower ends of the two strip-shaped holes provide stable support for the ends of the enameled copper wire inserted from outside. This ensures that the bending plate's downward movement results in equivalent deformation of the wire ends, ensuring bending quality.

[0013] In the aforementioned starter rotor plugging device, a first drive cylinder is mounted vertically on the mounting frame, the lifting seat is fixed to the output end of the first drive cylinder, a second drive cylinder is mounted vertically downward on the top of the lifting seat, and the upper end of the push rod is connected to the output end of the second drive cylinder. The movement of the lifting seat and the push rod are respectively achieved by the first and second drive cylinders, thereby ensuring operational stability while controlling costs.

[0014] In the above-mentioned starter rotor plug-in device, a horizontally arranged adjustment bracket with an outer end bent to one side in an L-shape is fixedly provided on the outer side of the vertical plate. A horizontally arranged screw rod perpendicular to the vertical plate is threadedly connected to the adjustment bracket. The screw rod is rotated toward one end of the vertical plate and is provided with a limit block. The limit block is opposite to the lower end of the strip hole along the axial direction of the screw rod. The limit block can block the end of the enameled copper wire fed from the other side, ensuring that the middle section of the enameled copper wire is vertically aligned with the bottom of the folding plate to ensure the uniformity of the folding line. In this way, when adapting to enameled copper wires of different lengths, the position between the limit block and the vertical plate can be adjusted by rotating the screw rod, thereby improving applicability.

[0015] In the aforementioned starter rotor wire insertion device, the stopper is square-shaped, with one side always abutting against the side of the adjustment bracket. Two spaced-apart, vertical guide clips are fixedly attached to the side of the stopper near the vertical plate. This way, after the enameled copper wire is inserted, its front end is restrained by the two guide clips, preventing the wire end from moving and ensuring effective bending and insertion.

[0016] In the aforementioned starter rotor wire insertion device, the middle portions of the opposing sides of the two guide clips are arched inward, forming a gap just wide enough for the enameled copper wire to pass through. This allows the ends of the enameled copper wire to be confined within a smaller space after being inserted between the two guide clips, further ensuring the wire's positional accuracy and preventing the wire's ends from shifting excessively during bending, potentially causing them to collide with the vertical plate and shift.

[0017] In the aforementioned starter rotor wiring device, the two vertical plates each have a protruding mounting plate on the opposing sides. A row of vertically arranged guide rollers are rotatably connected to the mounting plate on the side facing away from the lifting seat. The axis of each guide roller is horizontally arranged and parallel to the folding plate, which is located between the two rows of guide rollers. This allows the outer side of the enameled copper wire to contact the outer periphery of the guide rollers during the bending process. The frictional resistance encountered during the downward movement is converted into rolling friction, resulting in less resistance and smoother movement. This also prevents damage to the paint film on the guide roller surface, improving reliability.

[0018] In the above-mentioned starter rotor wire insertion device, the outer periphery of the guide roller has an annular inner groove. In this way, the enameled copper wire can be positioned in the inner groove, avoiding position deviation during the bending and downward movement process that affects the normal insertion of the enameled copper wire.

[0019] Compared with the prior art, the advantages of the present invention are as follows:

[0020] This starter rotor wire insertion device can clean the metal chips on the bottom of the slot to an area that does not contact the enameled copper wire before the enameled copper wire is bent and inserted into the bottom of the slot of the starter rotor, thereby avoiding damage to the local paint film on the bottom of the enameled copper wire. At the same time, when the enameled copper wire is pressed into place, the contact position between the enameled copper wire and the push rod will not be subjected to excessive pressure, effectively ensuring assembly reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of this embodiment.

[0022] Figure 2 yes Figure 1 Enlarged view of part A in .

[0023] Figure 3 2 is a front view structural diagram of this embodiment.

[0024] Figure 4 yes Figure 3 Schematic diagram of the BB cross-section structure.

[0025] Figure 5 yes Figure 4 Enlarged view of part C in .

[0026] Figure 6 It is a schematic cross-sectional structural diagram of the vent hole and the air inlet hole in the embodiment in a connected state.

[0027] Figure 7 yes Figure 6 Enlarged view of part D in .

[0028] Figure 8 yes Figure 6 Enlarged view of part E in .

[0029] In the figure, 1, mounting frame; 11, vertical plate; 111, strip hole; 112, mounting plate;

[0030] 2. Lifting seat; 21. Broken line plate; 211. Guide hole; 212. Ventilation hole; 213. Chip storage groove;

[0031] 3. Positioning turntable;

[0032] 4. Push rod; 41. Air inlet; 42. Chip blowing hole; 43. Magnet column;

[0033] 5. Driving cylinder 1; 6. Driving cylinder 2; 7. Adjusting bracket; 8. Screw; 9. Limit block; 101. Guide clip;

[0034] 102. Guide roller; 1021. Inner groove; 103. Rotor. DETAILED DESCRIPTION

[0035] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solutions of the present invention, but the present invention is not limited to these embodiments.

[0036] like Figure 1 、 Figure 4-7As shown, the starter rotor plug-in device includes a mounting frame 1, which is connected to a lifting seat 2 that can move up and down and a positioning turntable 3 for placing the rotor 103. The positioning turntable 3 is driven by an existing motor. The side of the lifting seat 2 has a vertical plate-shaped folding plate 21, which is located directly above the positioning turntable 3. The lifting seat 2 is also connected to a push rod 4 that is vertically arranged and can move up and down relative to the lifting seat 2. The lower end of the push rod 4 is in the shape of a tube with an open bottom. The outer periphery of the middle section of the push rod 4 has an air inlet 41 that is connected to the inner cavity of the push rod 4. The outer periphery of the lower end of the push rod 4 The periphery of the push rod 4 also has a chip blowing hole 42 that is tilted outward from top to bottom and communicates with the inner cavity of the push rod 4. The folding plate 21 has a vertically extending guide hole 211. The inner wall of the guide hole 211 has an air vent 212 that connects to the outer surface of the lifting seat 2. The port where the air vent 212 connects to the guide hole 211 is flared. The push rod 4 is vertically inserted into the guide hole 211. When the push rod 4 extends out of the guide hole 211 and moves downward to approach the positioning turntable 3, the air inlet 41 and the air vent 212 are connected. The chip blowing hole 42 is located on the side of the push rod 4 facing away from the lifting seat 2. A plurality of magnet columns 43 are embedded in the outer periphery of the lower end of the push rod 4, and the magnet columns 43 are all lower than the position of the chip blowing hole 42. The bottom surface of the folding plate 21 has an annular chip storage groove 213. The chip storage groove 213 is arranged around the lower end of the guide hole 211, and the inner diameter of the chip storage groove 213 is slightly larger than the radial dimension of the guide hole 211.

[0037] like Figure 1-5 The mounting frame 1 comprises two parallel uprights 11, each having vertically and symmetrically arranged strip holes 111. The lifting base 2 is slidably connected between the two uprights 11. A vertically mounted drive cylinder 1 5 is fixed to the mounting frame 1, and the lifting base 2 is fixed to the output end of the drive cylinder 1 5. A vertically downwardly mounted drive cylinder 2 6 is fixed to the top of the lifting base 2. Drive cylinder 2 6 is a conventional anti-rotation cylinder. The upper end of the push rod 4 is fixed to the output end of the drive cylinder 2 6. The opposite sides of the two upright plates 11 are each provided with a protruding mounting plate 112. The mounting plate 112 is rotatably connected to a row of vertically arranged guide rollers 102 on the side facing away from the lifting base 2. The guide rollers 102 are no higher than the lower ends of the strip holes 111. The axis of the guide rollers 102 is horizontally arranged and parallel to the folding plate 21. The folding plate 21 is located between the two rows of guide rollers 102. The outer periphery of the guide rollers 102 is provided with an annular inner groove 1021.

[0038] like Figure 1-3A horizontally mounted adjustment bracket 7, with its outer end bent to one side into an L-shape, is fixed to the outside of a vertical plate 11. A horizontally arranged screw 8, perpendicular to the vertical plate 11, is threadedly connected to the adjustment bracket 7. A stopper 9 is mounted on the screw 8, which rotates toward one end of the vertical plate 11. The stopper 9 is aligned with the lower end of the strip-shaped hole 111 along the axial direction of the screw 8. The stopper 9 is square-shaped, with one side always resting against the side of the adjustment bracket 7. Two spaced-apart, vertical guide clips 101 are fixed to the side of the stopper 9 near the vertical plate 11. The middle portions of the opposing sides of the two guide clips 101 are arched inward, forming a gap just large enough for the enameled copper wire to pass through.

[0039] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope of the appended claims.

Claims

1. A starter rotor plugging device, comprising a mounting frame (1), the mounting frame (1) being connected to a lifting seat (2) movable up and down and a positioning turntable (3) for placing a rotor, the side of the lifting seat (2) being provided with a vertical plate-shaped folding plate (21), the folding plate (21) being located directly above the positioning turntable (3), the lifting seat (2) being further connected to a push rod (4) arranged vertically and movable up and down relative to the lifting seat (2), characterized in that: The lower end of the push rod (4) is in the shape of a tube with an open bottom. The outer periphery of the middle section of the push rod (4) has an air inlet hole (41) connected to the inner cavity of the push rod (4). The outer periphery of the lower end of the push rod (4) also has a chip blowing hole (42) connected to the inner cavity of the push rod (4). The chip blowing hole (42) is arranged downward and outward. The folding plate (21) has a vertically penetrating guide hole (211). The inner wall of the guide hole (211) has an air vent (212) connected to the outer surface of the lifting seat (2). The push rod (4) is vertically inserted into the guide hole (211). When the push rod (4) extends out of the guide hole (211) and moves downward to a position close to the positioning turntable (3), the air inlet hole (41) and the air vent (212) are connected to each other.

2. The starter rotor plugging device according to claim 1, characterized in that: The chip blowing hole (42) is located on a side of the push rod (4) away from the lifting seat (2).

3. The starter rotor plugging device according to claim 1 or 2, characterized in that: A plurality of magnet columns (43) are embedded on the outer periphery of the lower end of the push rod (4), and the magnet columns (43) are all lower than the chip blowing hole (42). The bottom surface of the folding plate (21) has a chip storage groove (213) arranged around the lower end of the guide hole (211), and the inner diameter of the chip storage groove (213) is slightly larger than the radial dimension of the guide hole (211).

4. The starter rotor plugging device according to claim 1 or 2, characterized in that: The port communicating between the vent hole (212) and the guide hole (211) is in a flared shape.

5. The starter rotor plugging device according to claim 1 or 2, characterized in that: The mounting frame (1) comprises two vertical plates (11) arranged in parallel, each of the vertical plates (11) having strip holes (111) arranged vertically and symmetrically, and the lifting seat (2) is slidably connected between the two vertical plates (11).

6. The starter rotor plugging device according to claim 1 or 2, characterized in that: A vertically arranged driving cylinder 1 (5) is fixedly provided on the mounting frame (1), the lifting seat (2) is fixed to the output end of the driving cylinder 1 (5), a vertically downwardly arranged driving cylinder 2 (6) is fixedly provided on the top of the lifting seat (2), and the upper end of the push rod (4) is fixedly connected to the output end of the driving cylinder 2 (6).

7. The starter rotor plugging device according to claim 5, characterized in that: An adjustment bracket (7) is fixedly arranged horizontally on the outer side of the vertical plate (11) and its outer end is bent toward one side to form an L-shape. A screw rod (8) arranged horizontally and perpendicular to the vertical plate (11) is threadedly connected to the adjustment bracket (7). A limit block (9) is rotatably sleeved on one end of the vertical plate (11). The limit block (9) is opposite to the lower end of the strip hole (111) along the axial direction of the screw rod (8).

8. The starter rotor plugging device according to claim 7, characterized in that: The limit block (9) is in the shape of a square block and one side thereof always abuts against the side of the adjustment bracket (7). The side of the limit block (9) close to the vertical plate (11) is fixedly connected to two guide clips (101) arranged at intervals and in the shape of vertical plates.

9. The starter rotor plugging device according to claim 8, characterized in that: The middle parts of the opposite sides of the two guide clips (101) are both arched inwards to form a gap for only the enameled copper wire to pass through.

10. The starter rotor wire insertion device according to claim 5, characterized in that: The two sides of the vertical plates (11) facing each other are provided with a protruding mounting plate (112). The mounting plates (112) are rotatably connected to a row of vertically arranged guide rollers (102) on the side facing away from the lifting seat (2). The axis of the guide rollers (102) are arranged horizontally and are parallel to the folding plate (21). The folding plate (21) is located between the two rows of guide rollers (102). The outer periphery of the guide rollers (102) is provided with an annular inner groove (1021).

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