Bending apparatus for stator flat wire

Abstract

Disclosed in the present invention is a bending apparatus for a stator flat wire, comprising a rack, wherein a cam is rotatably provided on the rack; the cam comprises a center circle; at least one arc-shaped protrusion protrudes outwards from the side wall of the center circle; the cam is driven by a rotating mechanism I to rotate; at least one forming mechanism is provided at the periphery of the cam and around the rotating center of the cam, and is in one-to-one correspondence with the arc-shaped protrusion; the forming mechanism comprises a supporting table fixedly connected to the rack; a flat wire hole is vertically formed through the supporting table; a sliding block is slidably provided on the supporting table by means of a guide mechanism; the moving direction of the sliding block is located on a connecting line between the rotating center of the cam and the center of the flat wire hole; one end of the sliding block abuts against the side wall of the cam, and the other end of the sliding block corresponds to the flat wire hole; the sliding block is connected to an elastic reset mechanism; a stop block is provided on the supporting table; the stop block is located on the end of the flat wire hole away from the sliding block. In this way, a flat wire can continuously bent and the efficiency is improved.

Description

A bending device for stator flat wire Technical Field

[0001] The invention relates to the technical field of stator production, and in particular to a bending device for stator flat wires. Background Art

[0002] The stator includes a stator core and a stator winding. The stator winding is wound by a plurality of flat wires. During the production process of the stator, the flat wires connected to the stator need to be bent. In the prior art, bending is usually done manually using pliers, but this method is relatively inefficient.

[0003] Summary of the Invention

[0004] In order to solve the above-mentioned deficiencies in the prior art, the present invention provides a bending device for stator flat wires.

[0005] In order to achieve the above technical effects, the present invention adopts the following scheme:

[0006] A bending device for stator flat wire, comprising a frame, a cam rotatably provided on the frame, the cam being arranged horizontally, the cam comprising a center circle, the center of the center circle being the rotation center of the cam, at least one arc-shaped protrusion protruding outward on the side wall of the center circle, the cam being driven to rotate by a rotating mechanism I, at least one forming mechanism being provided around the rotation center of the cam, the number of the forming mechanisms being consistent with the number of the arc-shaped protrusions and corresponding one-to-one to the arc-shaped protrusions, the forming mechanism comprising a support platform fixedly connected horizontally to the frame, a flat wire hole being vertically penetrated through the support platform, the flat wire hole being located on the radius extension line of the center circle, a slider being slidably provided on the support platform through a guide mechanism, the slider being located between the cam and the flat wire hole, the moving direction of the slider being located on the line connecting the rotation center of the cam and the center of the flat wire hole, one end of the slider abutting the side wall of the cam, the other end of the slider corresponding to the flat wire hole, the slider being connected to an elastic reset mechanism, a stop block being provided on the support platform, the stop block being located at the end of the flat wire hole away from the slider.

[0007] According to a preferred technical solution, one end of the slider abuts against the side wall of the cam through roller I, the cam I is rotatably mounted on the slider sideways, and the other end of the slider is rotatably mounted with roller II corresponding to the flat wire hole, and the roller II is horizontally arranged.

[0008] According to a preferred technical solution, a plurality of arc-shaped protrusions are equidistantly distributed around the rotation center of the cam, and arc transitions are provided at the connections between the arc-shaped protrusions and the side walls of the center circle.

[0009] According to a preferred technical solution, the rotating mechanism I includes a rotating motor I, which is vertically arranged above the cam and mounted on a frame. A vertically arranged connecting shaft is fixedly connected to the rotation center of the cam, and the output shaft of the rotating motor I is fixedly connected to the connecting shaft downward.

[0010] According to a preferred technical solution, the guide mechanism includes two sleeves fixed on both sides of the slider, the sleeves are arranged horizontally, the length direction of the sleeves is parallel to the moving direction of the slider, the outer end surface of the sleeves extends inward to form a sliding hole, and a sliding rod is provided in the sliding hole to match and slide in the sliding hole, and one end of the sliding rod extends out of the sleeve hole and is fixedly connected to the support platform.

[0011] According to a preferred technical solution, the elastic reset mechanism includes a spring arranged in the sliding hole, the length direction of the spring is consistent with the length direction of the sliding rod, one end of the spring is connected to the sliding rod, and the other end of the spring is connected to the inner wall of the sliding hole, and the spring is always in a compressed state.

[0012] A preferred technical solution is that the stop block includes a stop block I and a stop block II that are arranged relatively to each other, and the stop block I and the stop block II move synchronously relative to or oppositely, and the moving direction of the stop block I and the stop block II is perpendicular to the moving direction of the slider, and the stop block I and the stop block II are respectively driven to move by a pushing cylinder installed on the support platform.

[0013] Compared with the prior art, the beneficial effects are:

[0014] The present invention has a simple structure and is easy to use. Through the back-and-forth rotation of the cam, the arc-shaped protrusion on the cam intermittently drives the slider to move outward, thereby pushing the flat wire extending from the flat wire hole outward to abut against the stop block, and bending the flat wire. In this way, the flat wire can be bent continuously, thereby improving efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] FIG1 is a schematic structural diagram of the present invention;

[0016] FIG2 is a schematic diagram of a partial structure of the present invention;

[0017] FIG3 is an enlarged schematic diagram of the structure of part A in FIG2 ;

[0018] FIG4 is a schematic diagram of the cam structure of the present invention;

[0019] FIG5 is a schematic side view of a partial structure of the molding device in the present invention.

[0020] Figure numerals: 1. Frame; 2. Forming mechanism; 3. Cam; 4. Rotating motor I; 5. Center circle; 6. Arc-shaped protrusion; 7. Guide mechanism; 8. Slider; 9. Roller I; 10. Roller II; 11. Stopper I; 12. Stopper II; 13. Push cylinder; 14. Support platform; 15. Flat wire hole; 16. Stopper; 17. Sleeve; 18. Slide rod; 19. Flat wire. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] A bending device for a stator flat wire 19, comprising a frame, a cam 3 rotatably provided on the frame, the cam 3 being arranged horizontally, the cam 3 comprising a center circle 5, the center of the center circle 5 being the rotation center of the cam 3, at least one arc-shaped protrusion 6 protruding outward from the side wall of the center circle 5, the center circle 5 located at the center and the arc-shaped protrusion 6 connected to the center circle 5 together forming the main structure of the cam 3, the cam 3 being driven to rotate by a rotating mechanism I, at least one forming mechanism being provided around the rotation center of the cam 3, the forming mechanism being used to bend and form the flat wire 19, the number of the forming mechanisms being consistent with the number of the arc-shaped protrusions 6, and corresponding one-to-one with the arc-shaped protrusions 6, the forming mechanism comprising The support platform 14 is fixedly connected to the frame horizontally, and a flat wire hole 15 is vertically penetrated on the support platform 14. The flat wire 19 that needs to be bent passes through the flat wire hole 15 from below the flat wire hole 15, and the flat wire hole 15 is located on the radius extension line of the center circle 5. A slider 8 is slidingly provided on the support platform 14 through a guide mechanism 7. The slider 8 is located between the cam 3 and the flat wire hole 15. The moving direction of the slider 8 is located on the line connecting the rotation center of the cam 3 and the center of the flat wire hole 15. One end of the slider 8 abuts the side wall of the cam 3, and the other end of the slider 8 corresponds to the flat wire hole 15. The slider 8 is connected to an elastic reset mechanism, and a stop block 16 is provided on the support platform 14. The stop block 16 is located at the end of the flat wire hole 15 away from the slider 8.

[0023] The flat wire 19 is passed through the flat wire hole 15 from below, and then the cam 3 rotates, and one end of the slider 8 is pressed against the side wall of the cam 3 and slides. When the slider 8 passes the arc-shaped protrusion 6, as the cam 3 rotates, it will push the slider 8 to move in the outward direction, and the other end of the slider 8 passes through the flat wire hole 15 to push the extended flat wire 19 outward and finally press against the stopper, thereby bending the part of the flat wire 19 extending out of the flat wire hole 15 in the outward direction. Finally, when the position where the slider 8 abuts against the cam 3 passes the arc-shaped protrusion 6, the stopper is driven to move inward by the elastic reset mechanism, so that the end of the slider 8 away from the cam 3 returns to the inner direction of the flat wire hole 15, and makes the slider 8 always press against the side wall of the cam 3. After completing one bending, the cam 3 rotates in the opposite direction to perform the next bending. Therefore, in the process of continuous back and forth rotation of the cam 3, the slider 8 is intermittently driven to move outward, and the flat wire 19 can be continuously bent.

[0024] The preferred technical solution is that one end of the slider 8 abuts against the side wall of the cam 3 through the roller I9, the cam 3I is rotatably mounted on the slider 8, and the other end of the slider 8 is rotatably mounted with a roller II10 corresponding to the flat wire hole 15, and the roller II10 is horizontally arranged.

[0025] The rolling arrangement of the rollers I9 and II10 can avoid sliding friction between the slider 8 and the side wall of the cam 3 and the flat wire 19, thereby avoiding wear.

[0026] In a preferred technical solution, a plurality of arc-shaped protrusions 6 are equidistantly distributed around the rotation center of the cam 3 , and the connection between the arc-shaped protrusions 6 and the side wall of the center circle 5 is arranged in an arc transition.

[0027] According to a preferred technical solution, the rotating mechanism I includes a rotating motor I4, which is vertically arranged above the cam 3. The rotating motor I4 is installed on a frame. A vertically arranged connecting shaft is fixedly connected to the rotation center of the cam 3. The output shaft of the rotating motor I4 is fixedly connected to the connecting shaft downward, and the cam 3 is driven to rotate by the rotating motor I4.

[0028] The preferred technical solution is that the guide mechanism 7 includes two sleeves 17 fixed on both sides of the slider 8, the sleeve 17 is horizontally arranged, and the length direction of the sleeve 17 is parallel to the moving direction of the slider 8. The outer end surface of the sleeve 17 extends inward to form a sliding hole, and a sliding rod 18 is provided in the sliding hole to match and slide. One end of the sliding rod 18 extends out of the sleeve hole and is fixedly connected to the support platform 14.

[0029] The sliding direction of the slider 8 is limited by the guiding effect of the sleeve 17 and the slide rod 18 .

[0030] According to a preferred technical solution, the elastic reset mechanism includes a spring arranged in the sliding hole, the length direction of the spring is consistent with the length direction of the sliding rod 18, one end of the spring is connected to the sliding rod 18, and the other end of the spring is connected to the inner wall of the sliding hole, and the spring is always in a compressed state.

[0031] Since the spring is always in a compressed state, the spring always tends to push the slider 8 to move inward, so that one end of the slider 8 can always rest against the side wall of the cam 3 and move along the side wall of the cam 3.

[0032] The preferred technical solution is that the stop block 16 includes a stop block I11 and a stop block II12 that are relatively arranged. The stop block I11 and the stop block II12 move synchronously relative to or oppositely. The moving direction of the stop block I11 and the stop block II12 is perpendicular to the moving direction of the slider 8. The stop block I11 and the stop block II12 are respectively driven to move by a pushing cylinder 13 installed on the support platform 14.

[0033] The two pushing cylinders 13 push the stopper I 11 and the stopper II 12 to move toward each other, and the stopper I 11 and the stopper II 12 close together to form a resistance.

[0034] In the description of the present invention, it should be understood that the terms "upper", "lower", "top", "bottom", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the inventive product is conventionally placed when in use, or are the orientations or positional relationships conventionally understood by those skilled in the art. These are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0036] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of the present invention.

Claims

1. A bending device for stator flat wire (19), characterized in that: The invention comprises a frame, a cam (3) is rotatably provided on the frame, the cam (3) is horizontally arranged, the cam (3) comprises a center circle (5), the center of the center circle (5) is the rotation center of the cam (3), at least one arc-shaped protrusion (6) protrudes outward from the side wall of the center circle (5), the cam (3) is driven to rotate by a rotating mechanism I, at least one forming mechanism is provided around the rotation center of the cam (3), the number of the forming mechanisms is consistent with the number of the arc-shaped protrusions (6), and the forming mechanisms correspond to the arc-shaped protrusions (6) one by one, the forming mechanism comprises a support platform (14) horizontally fixedly connected to the frame, the support platform (14) is vertically penetrated by a flat A wire hole (15), the flat wire hole (15) is located on the radius extension line of the center circle (5), a slider (8) is slidably provided on the support platform (14) through a guide mechanism (7), the slider (8) is located between the cam (3) and the flat wire hole (15), the moving direction of the slider (8) is located on the line connecting the rotation center of the cam (3) and the center of the flat wire hole (15), one end of the slider (8) abuts against the side wall of the cam (3), and the other end of the slider (8) corresponds to the flat wire hole (15), the slider (8) is connected to an elastic reset mechanism, and a stop block (16) is provided on the support platform (14), and the stop block (16) is located at the end of the flat wire hole (15) away from the slider (8).

2. The bending device for stator flat wire (19) according to claim 1, characterized in that: One end of the slider (8) is in contact with the side wall of the cam (3) through a roller I (9); the cam (3) I is rotatably mounted on the slider (8) in a sideways manner; the other end of the slider (8) is rotatably mounted with a roller II (10) corresponding to the flat wire hole (15); the roller II (10) is horizontally arranged.

3. The bending device for stator flat wire (19) as described in claim 1 is characterized in that a plurality of arc-shaped protrusions (6) are equidistantly distributed around the rotation center of the cam (3), and an arc transition is set at the connection between the arc-shaped protrusion (6) and the side wall of the center circle (5).

4. The bending device for stator flat wire (19) according to claim 1, characterized in that: The rotating mechanism I comprises a rotating motor I (4), which is vertically arranged above the cam (3). The rotating motor I (4) is mounted on a frame, and a vertically arranged connecting shaft is fixedly connected to the rotation center of the cam (3). The output shaft of the rotating motor I (4) is fixedly connected to the connecting shaft downward.

5. The bending device for stator flat wire (19) according to claim 1, characterized in that: The guide mechanism (7) comprises two sleeves (17) respectively fixed on both sides of the slider (8), the sleeves (17) are arranged horizontally, the length direction of the sleeves (17) is parallel to the moving direction of the slider (8), the outer end surface of the sleeve (17) extends inward to form a sliding hole, a sliding rod (18) is matched and slidably arranged in the sliding hole, and one end of the sliding rod (18) extends out of the sleeve hole and is fixedly connected to the support platform (14).

6. The bending device for stator flat wire (19) according to claim 5, characterized in that: The elastic reset mechanism comprises a spring arranged in the sliding hole, the length direction of the spring is consistent with the length direction of the sliding rod (18), one end of the spring is connected to the sliding rod (18), and the other end of the spring is connected to the inner wall of the sliding hole, and the spring is always in a compressed state.

7. The bending device for stator flat wire (19) according to claim 1, characterized in that: The stop block (16) includes a stop block I (11) and a stop block II (12) which are arranged opposite to each other. The stop block I (11) and the stop block II (12) move synchronously relative to or in the opposite direction. The moving directions of the stop block I (11) and the stop block II (12) are perpendicular to the moving direction of the slider (8). The stop block I (11) and the stop block II (12) are respectively driven to move by a pushing cylinder (13) installed on the support platform (14).

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