Hairpin flat wire stator copper wire breaking device

Abstract

The utility model discloses a hairpin flat wire stator copper wire breaking device, and relates to the field of new energy automobile driving hairpin flat wire motor production and manufacturing, the hairpin flat wire stator copper wire breaking device comprises a base, a mobile station is arranged above the base, the mobile station is connected with the base through a guide rail and a sliding block, a speed reducer, a motor and a broken wire forming part are arranged above the mobile station, and the broken wire forming part is connected with the base. The motor is arranged above the speed reducer, the broken wire forming part is arranged in front of the speed reducer, a reverse leaning mechanism is arranged behind the base, and a floating mechanism is arranged below the moving table. According to the utility model, the production efficiency of forming the enameled wire of the stator of the hairpin flat wire motor is improved through automatic operation, high-precision cutting and plastic operation are realized by adopting an exquisite moving cutter and fixed cutter mechanism, and the consistency and high quality of finished products are ensured. The reverse leaning mechanism design effectively prevents adhesion, the structure is compact and easy to maintain, the maintenance cost is reduced, diversified production requirements of the automobile manufacturing industry are met, and important influences are achieved.

Description

Technical Field

[0001] The utility model relates to the field of production and manufacturing of hairpin flat wire motors driven by new energy vehicles, in particular to a hairpin flat wire stator copper wire breaking device. Background Art

[0002] With the rapid iterative development of new energy vehicles, the performance requirements for drive motors are getting higher and higher, and drive motors have gradually developed from round wire motors to hairpin flat wire motors. Hairpin flat wire technology is a large-scale, high-quality stator production technology. The process mainly consists of the following six steps: forming, insertion, twisting and expansion, welding, insulation and testing. PIN forming requires a series of processes such as straightening, paint removal, cutting, and forming. For example, the published patent CN202410016373.1, a chamfering and cutting mechanism of a flat wire motor hairpin forming machine, solves the problem of cutting chamfers. It should be noted that the surface quality of the cross section, the burrs of the cross section, the deformation of the cross section, etc. affect the forming effect, and then affect the subsequent production quality. In view of the product production problems that arise in the enameled wire forming of the hairpin flat wire motor stator, the market urgently needs a new type of hairpin flat wire stator copper wire breaking method and device to meet the production needs of the hairpin flat wire stator. Utility Model Content

[0003] The utility model aims to provide a device for cutting copper wires of a hairpin flat wire stator to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a hairpin flat wire stator copper wire breaking device, comprising a base, a movable platform is provided above the base, the movable platform is interconnected with the base through a guide rail and a slider, a reducer, a motor and a wire breaking forming part are provided above the movable platform, the motor is arranged above the reducer, the wire breaking forming part is arranged in front of the reducer, a back-leaning mechanism is provided at the rear of the base, and a floating mechanism is provided below the movable platform.

[0005] Further: the wire breaking forming part includes a supporting shell, on which a moving knife mechanism and a fixed knife mechanism are provided; the moving knife mechanism is provided with a moving knife block, a moving knife seat and a moving knife gear shaft; the fixed knife mechanism is provided with a fixed knife block, a fixed knife seat and a fixed knife gear shaft; a driving gear shaft is provided in front of the reducer, and the driving gear shaft is respectively meshed and linked with the moving knife gear shaft and the moving knife gear shaft.

[0006] Furthermore: the movable knife block is fixedly connected to the movable knife seat, the fixed knife block is fixedly connected to the fixed knife seat, the movable knife seat and the fixed knife seat are slidably arranged in front of the support shell through a limit plate, the head of the movable knife gear shaft is an eccentric shaft and is inserted into the countersunk hole behind the fixed knife seat; the head of the fixed knife gear shaft is an eccentric head, and a fixed knife rotating wheel is provided at the rear of the movable knife seat and is in contact with the outer wall of the head of the fixed knife gear shaft.

[0007] Preferably: the movable knife block is provided with a movable knife head, the fixed knife block is provided with a fixed knife head, the movable knife head can be inserted into the fixed knife head opposite to each other, the movable knife block is also provided with a clamping block, compression springs are provided between the two sides of the clamping block and the movable knife block, the movable knife head passes through the middle of the clamping block, and a drop tube is fixedly provided below the fixed knife block.

[0008] Further: the back-leaning mechanism includes a back-leaning frame and a back-leaning swivel seat, the bottom of the back-leaning frame is fixedly connected to the base, the top of the back-leaning frame is provided with a back-leaning sleeve and a back-leaning wheel, the back-leaning swivel seat is interconnected with the rear output end of the reducer, and the back-leaning swivel seat is provided with a back-leaning block.

[0009] Preferably, the back-rest sleeve is inserted in the middle of the back-rest block, the rear end of the back-rest block is a wavy curved surface, and the wavy curved surface at the rear of the back-rest block can fit with the outer wall of the back-rest wheel.

[0010] Furthermore: the floating mechanism includes a floating bracket, the floating bracket is provided with a floating cylinder, and the head of the floating cylinder is interconnected with the bottom of the moving platform through a connecting seat.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model can effectively solve the production problems of surface quality, burr and deformation of the cross section of the enameled wire of the stator of the hairpin flat wire motor, and realize the automatic operation of copper wire breaking and forming through the linkage of the motor, reducer and gear shaft, and improve the production efficiency. The moving knife mechanism and the fixed knife mechanism are exquisitely designed, and the reciprocating motion of the eccentric shaft and the eccentric head realizes high-precision cutting and plastic operation, which ensures the consistency and high quality of the finished product. The design of the back-leaning mechanism enables the moving table to reciprocate during the plastic and cutting process, effectively preventing the adhesion of the forming line during the processing. The structural design of the whole device is reasonable, and the connection between the various components is compact and easy to disassemble. This makes the maintenance and maintenance of the device simple and convenient, reduces the maintenance cost, and realizes the diversified production needs of driving hairpin flat wire motors in the automobile manufacturing industry, which has great influence and far-reaching significance. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the forming of the flat wire stator copper wire;

[0013] Figure 2 It is a schematic diagram of the structure of the utility model;

[0014] Figure 3 This is a rear state diagram of the utility model;

[0015] Figure 4 It is the front view of the utility model;

[0016] Figure 5 It is a schematic diagram of AA section view;

[0017] Figure 6 It is a schematic cross-sectional view of BB;

[0018] Figure 7 It is a schematic diagram of some components of the disconnection structure;

[0019] Figure 8 This is the enlarged view of point C;

[0020] Fig. 9 It is a schematic diagram of the process work;

[0021] In the figure: 1, base, 2, moving table, 3, reducer, 4, motor, 5, wire breaking forming part, 6, back-leaning mechanism, 7, guide rail, 8, floating mechanism, 9, intermediate sleeve, 31, driving gear shaft, 51, supporting shell, 52, moving knife mechanism, 53, fixed knife mechanism, 54, limiting plate, 55, blanking tube, 521, moving knife block, 522, moving knife seat, 523, moving knife gear shaft, 524, pressing block, 525, compression spring, 526, moving knife head, 531, fixed knife block, 532, fixed knife seat, 533, fixed knife gear shaft, 534, fixed knife rotating wheel, 535, fixed knife head, 61, back-leaning frame, 62, back-leaning sleeve, 63, back-leaning rotating seat, 64, back-leaning block, 65, back-leaning wheel, 81, floating bracket, 82, floating cylinder, 83, connecting seat. DETAILED DESCRIPTION

[0022] The present invention will be described below based on the embodiments in conjunction with the accompanying drawings in the embodiments of the present invention. However, it is worth noting that the present invention is not limited to these embodiments. In the detailed description of the present invention below, some specific details are described in detail. However, for the parts that are not described in detail, those skilled in the art can also fully understand the present invention.

[0023] In addition, those skilled in the art should understand that the drawings are only provided to illustrate the purpose, features and advantages of the present invention, and the drawings are not actually drawn according to scale.

[0024] At the same time, unless the context clearly requires otherwise, the words "include", "comprises" and similar words throughout the specification and claims should be interpreted as inclusive rather than exclusive or exhaustive; that is, the meaning is "including but not limited to".

[0025] See also Figure 1-Figure 9The utility model provides a technical solution: it includes a base 1, a moving platform 2 is provided above the base 1, the moving platform 2 is interconnected with the base 1 through a guide rail 7 and a slider, a reducer 3, a motor 4 and a wire breaking forming part 5 are provided above the moving platform 2, the motor 4 is arranged above the reducer 3, the wire breaking forming part 5 is arranged in front of the reducer 3, a back-leaning mechanism 6 is provided at the rear of the base 1, and a floating mechanism 8 is provided below the moving platform 2.

[0026] The wire breaking forming part 5 includes a supporting shell 51, on which a moving knife mechanism 52 and a fixed knife mechanism 53 are provided; the moving knife mechanism 52 is provided with a moving knife block 521, a moving knife seat 522 and a moving knife gear shaft 523; the fixed knife mechanism 53 is provided with a fixed knife block 531, a fixed knife seat 532 and a fixed knife gear shaft 533; a driving gear shaft 31 is provided in front of the reducer 3, and the driving gear shaft 31 is meshed and linked with the moving knife gear shaft 523 and the moving knife gear shaft 523 respectively.

[0027] The movable knife block 521 is fixedly connected to the movable knife seat 522, and the fixed knife block 531 is fixedly connected to the fixed knife seat 532. The movable knife seat 522 and the fixed knife seat 532 are slidably arranged in front of the support shell 51 through a limit plate 54. The head of the movable knife gear shaft 523 is an eccentric shaft and is inserted into the countersunk hole behind the fixed knife seat 532; the head of the fixed knife gear shaft 533 is an eccentric head, and a fixed knife rotating wheel 534 is provided at the rear of the movable knife seat 522 and is in contact with the outer wall of the head of the fixed knife gear shaft 533.

[0028] The movable knife block 521 is provided with a movable knife head 526, and the fixed knife block 531 is provided with a fixed knife head 535. The movable knife head 526 can be inserted into the fixed knife head 535 opposite to each other. The movable knife block 521 is also provided with a clamping block 524. Compression springs 525 are provided between the two sides of the clamping block 524 and the movable knife block 521. The movable knife head 526 passes through the middle of the clamping block 524. A drop pipe 55 is fixedly connected to the bottom of the fixed knife block 531.

[0029] The back-leaning mechanism 6 includes a back-leaning frame 61 and a back-leaning rotating seat 63. The bottom of the back-leaning frame 61 is fixedly connected to the base 1. The top of the back-leaning frame 61 is provided with a back-leaning sleeve 62 and a back-leaning wheel 65. The back-leaning rotating seat 63 is interconnected with the rear output end of the reducer 3. The back-leaning rotating seat 63 is provided with a back-leaning block 64.

[0030] The back-rest sleeve 62 is inserted in the middle of the back-rest block 64 . The rear end of the back-rest block 64 is a wave-shaped curved surface. The wave-shaped curved surface at the rear of the back-rest block 64 can fit with the outer wall of the back-rest wheel 65 .

[0031] The floating mechanism 8 includes a floating bracket 81 , on which a floating cylinder 82 is disposed. The head of the floating cylinder 82 is interconnected with the lower side of the moving platform 2 via a connecting seat 83 .

[0032] The forming wire passes through the back-support sleeve 62 and the middle sleeve 9 through the existing straightening and feeding machine. The floating cylinder 82 is inflated to drive the moving platform 2 to move backward. The back-support block 64 will press against the back-support wheel 65. Then, after being transported to a certain position, the straightening and feeding machine stops, and the part of the enameled wire stripped just reaches the wire breaking forming part 5. Then the moving knife mechanism 52 and the fixed knife mechanism 53 are cut and plasticized. The shape of the head is as shown in the attached figure. Figure 1 As shown, the cone-shaped working principle is that the motor 4 drives the reducer 3 to work, so that the active gear shaft 31 drives the left and right fixed knife gear shafts 533 and the movable knife gear shaft 523. Both of them realize reciprocating motion of the two knife seats through the eccentric action, so that cutting and plasticization can be achieved through the fixed knife head 535 and the movable knife head 526. During the plasticization process, the back-rest seat 63 is also driven to rotate by the reducer 3. Since the back-rest block 64 is provided with a wavy surface, the movable table 2 will reciprocate at this time to prevent the molding line from sticking during plasticization and cutting, and has a buffering effect. The floating cylinder 82 is equivalent to the role of the gas spring, and so on. The equipment is reset and continuous batch processing is carried out with good precision and high efficiency.

[0033] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for breaking copper wires of a hairpin flat wire stator, comprising a base (1), characterized in that: A movable platform (2) is provided above the base (1), and the movable platform (2) is interconnected with the base (1) via a guide rail (7) and a slider; a reducer (3), a motor (4) and a wire breaking forming part (5) are provided above the movable platform (2); the motor (4) is provided above the reducer (3), and the wire breaking forming part (5) is provided in front of the reducer (3); a back-leaning mechanism (6) is provided at the rear of the base (1), and a floating mechanism (8) is provided below the movable platform (2).

2. A hairpin flat wire stator copper wire breaking device according to claim 1, characterized in that: The wire breaking forming part (5) comprises a supporting shell (51), and a moving knife mechanism (52) and a fixed knife mechanism (53) are provided on the supporting shell (51); the moving knife mechanism (52) is provided with a moving knife block (521), a moving knife seat (522) and a moving knife gear shaft (523); the fixed knife mechanism (53) is provided with a fixed knife block (531), a fixed knife seat (532) and a fixed knife gear shaft (533); a driving gear shaft (31) is provided in front of the reducer (3), and the driving gear shaft (31) is meshed and linked with the moving knife gear shaft (523) and the moving knife gear shaft (523) respectively.

3. A hairpin flat wire stator copper wire breaking device according to claim 2, characterized in that: The movable knife block (521) is fixedly connected to the movable knife seat (522), and the fixed knife block (531) is fixedly connected to the fixed knife seat (532). The movable knife seat (522) and the fixed knife seat (532) are slidably arranged in front of the support shell (51) through a limit plate (54). The head of the movable knife gear shaft (523) is an eccentric shaft and is inserted into the countersunk hole at the rear of the fixed knife seat (532); the head of the fixed knife gear shaft (533) is an eccentric head, and a fixed knife rotating wheel (534) is arranged at the rear of the movable knife seat (522) and is in contact with the outer wall of the head of the fixed knife gear shaft (533).

4. A hairpin flat wire stator copper wire breaking device according to claim 3, characterized in that: The movable knife block (521) is provided with a movable knife head (526), ​​and the fixed knife block (531) is provided with a fixed knife head (535). The movable knife head (526) can be opposite to and mutually inserted with the fixed knife head (535). The movable knife block (521) is also provided with a clamping block (524). Compression springs (525) are provided between the two sides of the clamping block (524) and the movable knife block (521). The movable knife head (526) passes through the middle part of the clamping block (524). A drop pipe (55) is fixedly provided below the fixed knife block (531).

5. The device for cutting copper wires of a hairpin flat wire stator according to claim 1, characterized in that: The back-leaning mechanism (6) comprises a back-leaning frame (61) and a back-leaning rotating seat (63); the back-leaning frame (61) is fixedly connected to the base (1) at its lower part; a back-leaning sleeve (62) and a back-leaning wheel (65) are provided at its upper part; the back-leaning rotating seat (63) is interconnected with the rear output end of the reducer (3); and a back-leaning block (64) is provided on the back-leaning rotating seat (63).

6. A hairpin flat wire stator copper wire breaking device according to claim 5, characterized in that: The back-rest sleeve (62) is inserted in the middle of the back-rest block (64), the rear end of the back-rest block (64) is a wave curved surface, and the wave curved surface at the rear of the back-rest block (64) can be fitted with the outer wall of the back-rest wheel (65).

7. The device for cutting copper wires of a hairpin flat wire stator according to claim 1, characterized in that: The floating mechanism (8) comprises a floating bracket (81), a floating cylinder (82) is provided on the floating bracket (81), and the head of the floating cylinder (82) is interconnected with the bottom of the moving platform (2) through a connecting seat (83).

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