Burr removing device for flat wire

Abstract

The utility model relates to the technical field of burr extruding equipment, and provides a burr removing device for a flat wire, which comprises a support frame, two burr removing components which are arranged on the support frame and can move relatively, and a driving component which enables the two burr removing components to move relatively, each deburring assembly comprises a mounting seat connected with the driving assembly and a cutter, the cutter comprises a first end part connected with the mounting seat and a second end part opposite to the first end part, and the end face of the second end part of at least one cutter is provided with an extrusion groove for the flat wire to move in and out; and the extrusion groove is provided with two longitudinal groove walls which are in contact with the surface of the flat wire. Compared with the prior art, the burr removing device for the flat wire can improve the grinding efficiency of the surface of the flat wire, saves time and labor, and reduces the production cost.

Description

Technical Field

[0001] The utility model relates to the technical field of deburring equipment, in particular to a burr removing device for flat wires. Background Art

[0002] A motor with a stator winding using a rectangular cross-section wire is called a flat wire motor (also called a Pin motor). Different from a common wound motor, a flat wire motor does not first wind a round wire into a specific coil and then embed it into the stator slot by a machine. Instead, the flat wire (also called copper wire or flat copper wire, hereinafter collectively referred to as flat wire for the sake of unified technical terms) is preformed, inserted into the stator slot, and then formed and welded again at one or both ends to form the entire stator winding. The flat wire is beneficial to improving the slot filling rate of the motor. Generally, the slot filling rate of a round wire motor is about 50%, while that of a flat wire motor can reach more than 70%. According to the winding form of the flat wire motor, it can be further divided into Hair-pin winding (also called hairpin winding), I-Pin winding (also called I-type clip winding), wave winding, etc. The hairpin-type flat wire winding gets its name because its shape is more like a hairpin. Its advantage is that only one end needs to be welded, and its disadvantage is that the preparation is relatively complex. After the hairpin is formed, the hairpin wires are inserted into the stator core in groups, and finally assembled into a finished motor stator through equipment such as flaring, twisting, welding, and dipping. The process of the hairpin forming machine mainly includes unwinding, peeling, lengthwise cutting, and hairpin forming.

[0003] At present, after the mechanical scraper removes the (paint) skin on the surface of the flat wire, burrs will be formed at the edges of the flat wire. To avoid being scratched by the burrs when contacting the flat wire, generally, the surface of the peeled part of the flat wire needs to be deburred. The traditional method is to manually use a deburring tool to scrape the burrs on the edges of the flat wire. Therefore, it is time-consuming and laborious, and the cost is high. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a burr removing device for flat wires to solve the technical problems of time-consuming, laborious deburring method and high production cost in the prior art.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is: to provide a burr removing device for flat wires, which includes a support frame, two deburring components arranged on the support frame and capable of moving relatively, and a driving component for making the two deburring components move relatively; each deburring component includes a mounting seat connected to the driving component and a tool. The tool includes a first end connected to the mounting seat and a second end opposite to the first end. At least one end face of the second end of the tool is provided with an extrusion groove for the flat wire to move in and out. The extrusion groove has two longitudinal groove walls in contact with the surface of the flat wire.

[0006] Further, the longitudinal groove wall includes an inclined portion extending inwardly and obliquely from the end surface of the second end towards the first end and a vertical portion extending from the inclined portion towards the first end to the bottom surface of the extrusion groove.

[0007] Further, the cutter is connected to the mounting seat through a cutter bracket. A convex portion is provided on the outer peripheral surface of the first end of the cutter, and a clamping groove cooperating with the convex portion is provided on the cutter bracket.

[0008] Further, the convex portion extends along the entire circumference of the cutter.

[0009] Further, the driving assembly includes at least one bidirectional lead screw rotatably supported on the support frame and a motor capable of rotating the at least one bidirectional lead screw; each mounting seat is respectively connected to the threaded portion of the bidirectional lead screw through a nut sleeve.

[0010] Further, the number of the bidirectional lead screws is two, and the two bidirectional lead screws are parallel to each other and arranged at intervals.

[0011] Further, the driving assembly further includes a main synchronous pulley connected to the output shaft of the motor, two slave synchronous pulleys respectively connected to the two bidirectional lead screws, and a synchronous belt connecting the main synchronous pulley and the slave synchronous pulleys.

[0012] Further, an extrusion groove is provided on the end surface of the second end of each cutter.

[0013] Further, the cutter has a rectangular, circular or oval longitudinal section.

[0014] Further, two wire assemblies are provided on the support frame, and the deburring assembly is located between the two wire assemblies; each wire assembly includes a wire bracket fixed on the support frame and a wire sleeve mounted on the wire bracket. The wire sleeve has a wire through hole for a flat wire to pass through.

[0015] Compared with the prior art, the burr removing device for flat wires provided by the present utility model includes a support frame, two deburring assemblies and a driving assembly for relatively moving the two deburring assemblies; each deburring assembly includes a mounting seat connected to the driving assembly and a cutter. The cutter includes a first end connected to the mounting seat and a second end opposite to the first end. An extrusion groove is provided on the end surface of the second end of the cutter. The extrusion groove has two longitudinal groove walls in contact with the surface of the flat wire. In this way, by driving the two deburring assemblies to relatively move through the driving assembly, the longitudinal groove walls of the extrusion groove on the cutter contact the flat wire as the cutter moves, and friction with the edges of the flat wire as the cutter moves, so as to scrape off the paint scraps on the edges of the flat wire and can chamfer the edges of the flat wire, which can not only improve the polishing efficiency of the flat wire surface, save time and effort, but also reduce the production cost. Description of the Drawings

[0016] Figure 1 is a three-dimensional schematic diagram of a burr removal device for flat wires provided by an embodiment of the present utility model;

[0017] Figure 2 is a three-dimensional schematic diagram of the burr removal device for flat wires provided by the embodiment of the present utility model with the dust-proof cover hidden

[0018] Figure 3 is Figure 1 a cross-sectional view of the A-A plane in

[0019] Figure 4 is Figure 1 a cross-sectional view of the B-B plane in

[0020] Figure 5 is a three-dimensional schematic diagram of a tool provided by an embodiment of the present utility model.

[0021] Description of main component symbols

[0022] 100 - Burr removal device for flat wires; 1 - Support frame; 11 - Bottom plate; 12 - Top plate; 13 - Vertical guide rail; 14 - Dust-proof cover; 2 - Burr removal assembly; 21 - Mounting seat; 22 - Tool; 221 - First end; 222 - Second end; 223 - Protrusion; 23 - Extrusion groove; 231 - Longitudinal groove wall; 232 - Inclined part; 233 - Vertical part; 24 - Tool support; 241 - Card slot; 25 - Nut sleeve; 3 - Driving assembly; 31 - Bi-directional lead screw; 32 - Motor; 33 - Main synchronous pulley; 34 - Driven synchronous pulley; 35 - Synchronous belt; 36 - Tensioning pulley; 4 - Wire guiding assembly; 41 - Wire guiding support; 42 - Wire guiding sleeve; 43 - Wire through hole; 200 - Flat wire. Detailed implementation manners

[0023] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0024] In order to enable those skilled in the art to better understand the technical solutions of the present utility model, the implementation of the present utility model will be described in detail below with reference to specific drawings.

[0025] For the convenience of narration, the "front", "rear", "left", "right", "upper" and "lower" referred to hereinafter are consistent with the front, rear, left, right, upper and lower directions of the accompanying drawings themselves, but do not limit the structure of the present utility model.

[0026] Unless otherwise defined, the technical terms or scientific terms used herein shall have the ordinary meanings as understood by those of ordinary skill in the art to which this utility model pertains. The terms "first", "second" and similar terms used in the description and claims of this utility model patent application do not denote any order, quantity or importance, but are only used to distinguish different components. Similarly, terms such as "a" or "an" do not denote a quantity limitation, but mean that there is at least one.

[0027] As Figures 1 to 4 shown, the burr removing device 100 for flat wire provided in this embodiment includes a support frame 1, two deburring components 2 arranged on the support frame 1 and capable of relative movement, and a driving component 3 for making the two deburring components 2 move relatively; each deburring component 2 includes a mounting seat 21 connected to the driving component 3 and a tool 22, the tool 22 includes a first end 221 connected to the mounting seat 21 and a second end 222 opposite to the first end 221, and an extrusion groove 23 for the flat wire 200 to move in and out is formed on the end face of the second end 222 of at least one tool 22, and the extrusion groove 23 has two longitudinal groove walls 231 in contact with the surface of the flat wire 200.

[0028] The above-mentioned burr removing device 100 for flat wire includes a support frame 1, two deburring components 2 and a driving component 3 for making the two deburring components 2 move relatively; each deburring component 2 includes a mounting seat 21 connected to the driving component 3 and a tool 22, the tool 22 includes a first end 221 connected to the mounting seat 21 and a second end 222 opposite to the first end 221, an extrusion groove 23 is formed on the end face of the second end 222 of the tool 22, and the extrusion groove 23 has two longitudinal groove walls 231 in contact with the surface of the flat wire 200. In this way, by driving the two deburring components 2 to move relatively by the driving component 3, the longitudinal groove walls 231 of the extrusion groove 23 on the tool 22 contact the flat wire 200 as the tool 22 moves, and friction with the edges of the flat wire 200 as the tool 22 moves, so as to scrape off the paint scraps on the edges of the flat wire 200 and can chamfer the edges of the flat wire 200, which can not only improve the grinding efficiency of the surface of the flat wire 200, save time and effort, but also reduce the production cost.

[0029] See Figures 1 to 4, the burr removing device 100 for flat wires provided in this embodiment is used to polish and extrude the paint stripping positions of the flat wire 200 after mechanical skinning on the surface, so as to scrape off the remaining paint chips on the surface of the flat wire 200. In this embodiment, the burr removing device 100 for flat wires includes a support frame 1, a deburring component 2 and a driving component 3. The support frame 1 includes a bottom plate 11 and a top plate 12 located above the bottom plate 11. The surface of the bottom plate 11 has a first direction D1 (the D1 direction shown in the figure, hereinafter collectively referred to as the first direction D1) and a second direction D2 (the D2 direction shown in the figure, hereinafter collectively referred to as the second direction D2) that are perpendicular to each other. The flat wire 200 moves relative to the support frame 1 substantially along the first direction D1. The number of deburring components 2 is two but not limited to two. The two deburring components 2 are both arranged between the bottom plate 11 and the top plate 12 and are spaced apart in the direction perpendicular to the surface of the bottom plate 11 (the up and down direction shown in the figure).

[0030] In another embodiment, the two deburring components 2 can be arranged at left and right intervals.

[0031] See Figures 1 to 5 , the deburring component 2 provided in this embodiment includes a mounting seat 21 connected to the driving component 3 and a tool 22. The tool 22 includes a first end 221 connected to the mounting seat 21 and a second end 222 opposite to the first end 221. An extrusion groove 23 for the flat wire 200 to move in and out is formed on the end face (the side facing another tool 22) of the second end 222 of the tool 22. The extrusion groove 23 extends along the first direction D1 and penetrates both side faces of the tool 22. The extrusion groove 23 has two longitudinal groove walls 231 that contact the surface of the flat wire 200. In this embodiment, the extrusion grooves 23 are formed on the tools 22 of the two deburring components 2, and the positions of the two extrusion grooves 23 on the second end of the tool 22 correspond to each other. Each longitudinal groove wall 231 includes an inclined portion 232 that extends inwardly from the end face of the second end 222 to the first end 221 and a vertical portion 233 that extends from the inclined portion 232 to the bottom surface of the extrusion groove 23 toward the first end 221. The width dimension of the groove opening of the extrusion groove 23 in the second direction D2 is greater than the width dimension of the flat wire 200. It can be understood that after moving the burr to be removed on the flat wire 200 between the two tools 22, driving the two tools 22 to move relative to each other, through the contact and friction between the longitudinal groove walls 231 of the extrusion grooves 23 of the two tools 22 and the edges of the flat wire 200, the remaining paint chips on the edges can be removed, and a chamfer can be ground at the edges of the flat wire 200.

[0032] In another embodiment, among the tools 22 of the two deburring components 2, the extrusion groove 23 is formed only on one of the tools 22.

[0033] See Figures 1 to 4, in this embodiment, the tool 22 provided is connected to the mounting base 21 through the tool holder 24. A convex portion 223 is provided on the outer peripheral surface of the first end portion 221 of the tool 22, and a card slot 241 that cooperates with and engages the convex portion 223 is provided on the tool holder 24. In this embodiment, the tool holder 24 is removably fixed to the mounting base 21 through fasteners such as screws. The tool 22 is removably mounted on the tool holder 24. After the tool holder 24 and the mounting base 21 are fixed, the tool 22 and the convex portion 223 are pressed against the mounting base 21 through the tool holder 24, thereby fixing the tool 22. In this way, it is convenient to replace the tool 22 to adapt to flat wires 200 with different cross-sectional sizes.

[0034] In another embodiment, the tool holder 24 can be directly mounted on the mounting base 21 or integrally formed with the mounting base 21.

[0035] From Figure 5 It can be seen that in this embodiment, the convex portion 223 extends along the entire circumference of the tool 22, and the shape of the card slot 241 on the tool holder 24 is adapted to the convex portion 223.

[0036] From Figure 5 It can be seen that in this embodiment, the tool 22 has a rectangular longitudinal section.

[0037] In another embodiment, the tool 22 has a circular or elliptical longitudinal section.

[0038] Referring to Figures 1 to 4 , the driving assembly 3 provided in this embodiment can drive the two deburring assemblies 2 to move relatively. The driving assembly 3 includes at least one bidirectional lead screw 31 rotatably supported on the support frame 1 and a motor 32 capable of rotating at least one bidirectional lead screw 31. The motor 32 can be mounted on the support frame 1 or outside the support frame 1; each mounting base 21 is respectively connected to the threaded portion (not shown in the figure) of the bidirectional lead screw 31 through a nut sleeve. In this implementation, the bidirectional lead screw 31 is perpendicular to the bottom plate 11. The bidirectional lead screw 31 has two threaded portions with opposite thread directions. The mounting bases 21 in the two deburring assemblies 2 are respectively mounted on the vertical guide rails 13 of the support frame 1 in a liftable manner and are threadedly connected to the threaded portions of the bidirectional lead screw 31 through the nut sleeves 25. The nut sleeves 25 and the mounting bases 21 are fixedly connected by all existing fixing methods such as screws and welding. In this way, when the motor 32 drives the bidirectional lead screw 31 to rotate, the two mounting bases 21 can move towards and away from each other on the support frame 1, thereby realizing the opening and closing actions of the tools 22 respectively located on the two mounting bases 21. In this way, by using the bidirectional lead screw 31 to drive the mounting base 21 and the tool 22 to move, this driving structure has the advantages of high precision, high stability, and long service life.

[0039] In yet another embodiment, one of the two mounting seats 21 is fixed to the support frame 1, and the other is mounted on the support frame 1 in a liftable manner and connected to the driving assembly 3, and moves up and down on the support frame 1 under the drive of the driving assembly 3.

[0040] In yet another embodiment, in a structure where the two deburring assemblies 2 can be arranged at intervals left and right, the bidirectional lead screw 31 can be arranged horizontally.

[0041] In yet another embodiment, the driving assembly 3 can adopt a structure of a motor 32 and a bidirectional screw, and drives the mounting seat 21 to move through the bidirectional screw.

[0042] In yet another embodiment, the nut sleeve 25 and the mounting seat 21 can be integrally formed.

[0043] See Figures 1 to 4 , in this embodiment, the number of the bidirectional lead screws 31 is two but not limited to two. The two bidirectional lead screws 31 are parallel to each other and arranged at intervals. In this way, when extruding the flat wire 200, the applied extrusion force is more evenly distributed.

[0044] See Figures 2 to 4 , the driving assembly 3 provided in this embodiment further includes a main synchronous pulley 33 connected to the output shaft of the motor 32, two slave synchronous pulleys 34 respectively connected to the two bidirectional lead screws 31, and a synchronous belt 35 connecting the main synchronous pulley 33 and the slave synchronous pulleys 34. In this embodiment, the main synchronous pulley 33 is mounted on the output shaft of the motor 32 and the two are non-rotatably connected. The slave synchronous pulley 34 is mounted on the bidirectional lead screw 31 and the two are non-rotatably connected. The inner surface of the synchronous belt 35 meshes with the main synchronous pulley 33 and the slave synchronous pulleys 34 respectively. A tension pulley 36 is also supported on the top plate 12, and the tension pulley 36 abuts against the outer surface of the synchronous belt 35. A dust cover 14 is provided on the top plate 12 to shield the main synchronous pulley 33, the slave synchronous pulleys 34, and the tension pulley 36.

[0045] See Figures 1 to 4 , two wire guiding assemblies 4 are provided on the support frame 1 provided in this embodiment. The two wire guiding assemblies 4 are both mounted on the bottom plate 11 and are spaced in the first direction D1. The deburring assembly 2 is located between the two wire guiding assemblies 4. Each wire guiding assembly 4 includes a wire guiding bracket 41 fixed to the support frame 1 and a wire guiding sleeve 42 mounted on the wire guiding bracket 41. The wire guiding sleeve 42 has a wire through hole 43 for the flat wire 200 to pass through, and the wire through hole 43 extends along the first direction D1.

[0046] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, or improvements made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A burr removal device for flat wire, characterized in that: It includes a support frame, two thorn removal components arranged on the support frame and capable of relative movement, and a driving component that enables the two thorn removal components to move relative to each other; each of the thorn removal components includes a mounting seat and a tool connected to the driving component, the tool includes a first end connected to the mounting seat and a second end opposite to the first end, and an extrusion groove for the flat wire to move in and out is provided on the end face of the second end of at least one of the tools, and the extrusion groove has two longitudinal groove walls that contact the surface of the flat wire.

2. The flat wire deburring device according to claim 1, characterized in that: The longitudinal groove wall includes an inclined portion extending obliquely inwardly from an end surface of the second end portion toward the first end portion, and a vertical portion extending from the inclined portion toward the first end portion to the bottom surface of the extrusion groove.

3. The flat wire deburring device according to claim 1, characterized in that: The tool is connected to the mounting seat via a tool bracket. A protrusion is convexly provided on the outer peripheral surface of the first end of the tool, and a groove for engaging with the protrusion is provided on the tool bracket.

4. The flat wire deburring device according to claim 3, characterized in that: The protrusion extends along the entire circumference of the tool.

5. The flat wire deburring device according to any one of claims 1 to 4, characterized in that: The driving assembly includes at least one bidirectional screw rod rotatably supported on the support frame and a motor capable of rotating at least one bidirectional screw rod; each of the mounting seats is connected to the threaded portion of the bidirectional screw rod through a nut sleeve.

6. The flat wire deburring device according to claim 5, characterized in that: The number of the bidirectional screw rods is two, and the two bidirectional screw rods are parallel to each other and spaced apart.

7. The flat wire deburring device according to claim 6, characterized in that: The driving assembly also includes a main synchronous wheel connected to the output shaft of the motor, two slave synchronous wheels respectively connected to the two bidirectional lead screws, and a synchronous belt connecting the main synchronous wheel and the slave synchronous wheels.

8. The flat wire deburring device according to any one of claims 1 to 4, characterized in that: The extrusion groove is formed on the end surface of the second end portion of each of the cutting tools.

9. The flat wire deburring device according to any one of claims 1 to 4, characterized in that: The tool has a rectangular, circular or oval longitudinal cross section.

10. The flat wire deburring device according to any one of claims 1 to 4, characterized in that: Two wire assemblies are arranged on the support frame, and the thorn removal assembly is located between the two wire assemblies; each of the wire assemblies includes a wire bracket fixed on the support frame and a wire sleeve installed on the wire bracket, and the wire sleeve has a wire through hole for the flat wire to pass through.

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