CN215279647U

CN215279647U - Enameled wire trimming mechanism

Info

Publication number: CN215279647U
Application number: CN202022817361.9U
Authority: CN
Inventors: 钟仁康; 吴有书; 徐意
Original assignee: Changzhou Jinkang Precision Mechanism Co Ltd
Current assignee: Changzhou Jinkang Precision Mechanism Co Ltd
Priority date: 2020-11-30
Filing date: 2020-11-30
Publication date: 2021-12-24
Anticipated expiration: 2030-11-30

Abstract

The utility model relates to the technical field of hairpin stator windings, in particular to an enameled wire trimming mechanism, which comprises a top plate positioned in an XOY surface, a trimming servo motor arranged on the top plate downwards along a Z-direction output shaft, a plurality of trimming upright posts arranged on the lower side of the top plate along the Z direction, and a trimming base which is parallel to the top plate and is fixedly arranged at the lower ends of the trimming upright posts; a trimming moving plate parallel to the top plate is arranged between the top plate and the trimming base, an upper cutter seat is fixedly arranged on the lower side of the trimming moving plate, a cutting cutter is detachably and fixedly arranged on the lower side of the upper cutter seat, the cutting cutter is sequentially a line cutting section and a line passing section from top to bottom, the cross section of the line cutting section is in an hourglass shape gradually narrowed along the width of the two ends and the middle of the line cutting section, the trimming and chamfering operation can be completed through one-step stamping and cutting, the process flow is simplified, the production efficiency is improved, elastic line blocks are respectively arranged in front of and behind the trimming position, and transverse needles and vertical needles are arranged in the elastic line blocks, so that the enameled wire can be limited, the enameled wire can stably move, and the deviation of the trimming is reduced.

Description

Enameled wire trimming mechanism

Technical Field

The utility model relates to a hairpin stator winding technical field especially relates to an enameled wire trimming mechanism.

Background

The traditional round enameled wire winding often has the problems of low effective copper area, large copper consumption of the winding and the like. In order to improve the effective copper area, hairpin stator windings appear on the market, so that copper wire arrangement in the slots is more regular, the slot fullness rate is improved, and the efficiency and the power density of the motor are improved.

In the processing process of the hair clip, several procedures of paint scraping, cutting and forming are needed, and in the existing processing process, the enameled wire is generally required to be cut firstly, and then is formed in another working section. Thus, the production process is complicated, and the production efficiency is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing an enameled wire trimming mechanism.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an enameled wire trimming mechanism comprises a top plate, a trimming servo motor, a plurality of trimming upright posts and a trimming base, wherein the top plate is positioned in an XOY plane; a trimming moving plate parallel to the top plate is arranged between the top plate and the trimming base, the trimming moving plate is penetrated by the trimming upright column and is in sliding fit with the trimming upright column, and an output shaft of the trimming servo motor is connected with the trimming moving plate through a spiral transmission mechanism; an upper cutter seat is fixedly arranged on the lower side of the wire cutting moving plate, a cutting cutter is detachably and fixedly arranged on the lower side of the upper cutter seat, the cutting cutter is sequentially provided with a cutting line section and a wire passing section from top to bottom, and the cross section of the cutting line section is in an hourglass shape with two ends being wide along X direction and the middle being gradually narrow; the line passing segment is of a strip structure which is symmetrically distributed at intervals on two sides of the lower end of the tangent segment along the X direction; the upper side of the trimming base is fixedly provided with a lower trimming knife holder, the lower trimming knife holder is detachably and fixedly provided with a lower trimming die corresponding to the cutting knife, the lower trimming die is provided with a cutting knife hole matched with the trimming segment of the cutting knife, and the cutting knife is movably matched in the cutting knife hole along the Z direction.

Preferably, the lower cutter holder is provided with two elastic thread blocks which are respectively positioned in front of and behind the lower shearing die along the Y direction, and each elastic thread block comprises a roller seat, a pair of vertical needles of which the axes are rotationally matched on the roller seat along the Z direction and a transverse needle of which the axes are rotationally matched on the roller seat along the X direction.

Preferably, the transverse needle is located at the inner side close to the cutting knife, and the vertical needle is located at the outer side.

Preferably, the upper side of the line snapping block is fixedly provided with a line pressing block, and the cutting knife penetrates through the line pressing block and is movably matched with the line pressing block along the Z direction.

Preferably, a wire cutting guide rod is fixedly arranged on the upper side of the wire pressing block along the Z direction, penetrates through the upper cutter seat and is movably matched with the upper cutter seat along the Z direction.

Preferably, a linear sliding block is arranged on the lower side of the trimming base along the Y direction.

Preferably, the front side of the trimming base is fixedly provided with a wire dragging base along the Y direction, and the wire dragging base is provided with a plurality of wire supporting frames in sliding fit along the Y direction.

The utility model has the advantages that:

1. in the device, the cross section of the cutting knife is in the shape of a hourglass with wide sides and narrow middle, the operation of trimming and chamfering can be completed by one-step stamping and shearing, the process flow is simplified, and the production efficiency is improved.

2. The front and the back of the trimming position are respectively provided with an elastic line block, and a transverse needle and a vertical needle are arranged in the elastic line blocks, so that the enameled wire can be limited, the enameled wire can stably move, and the deviation of trimming is reduced.

Drawings

Fig. 1 is a schematic structural view of an enameled wire trimming mechanism provided by the utility model;

fig. 2 is a schematic structural view of a cutting knife of the enameled wire trimming mechanism provided by the utility model;

fig. 3 is a schematic structural view of a lower shearing die of the enameled wire shearing mechanism provided by the utility model;

fig. 4 is the utility model provides an enameled wire trimming mechanism's snapping line block schematic diagram.

In the figure: 401-top plate, 402-trimming servo motor, 403-spiral transmission mechanism, 404-trimming moving plate, 405-trimming upright post, 406-trimming base, 407-upper trimming seat, 408-cutting knife, 4081-trimming segment, 4082-line passing segment, 409-lower trimming seat, 410-trimming lower die, 411-line pressing block, 412-line elastic block, 4121-roller seat, 4122-transverse needle, 4123-vertical needle, 413-trimming guide rod, 414-linear slider, 415-line dragging base and 416-line supporting frame.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-4, an enameled wire trimming mechanism includes a top plate 401 located in an XOY plane, a trimming servo motor 402 installed on the top plate 401 downward along a Z-direction output shaft, a plurality of trimming posts 405 installed on the lower side of the top plate 401 along the Z-direction, and a trimming base 406 parallel to the top plate 401 and fixedly installed at the lower ends of the trimming posts 405;

a trimming moving plate 404 parallel to the top plate 401 is arranged between the top plate 401 and the trimming base 406, the trimming moving plate 404 is penetrated by the trimming upright column 405 and is in sliding fit with the trimming upright column 405, and an output shaft of the trimming servo motor 402 is connected with the trimming moving plate 404 through a spiral transmission mechanism 403;

an upper cutter seat 407 is fixedly arranged on the lower side of the wire cutting moving plate 404, a cutting cutter 408 is detachably and fixedly arranged on the lower side of the upper cutter seat 407, the cutting cutter 408 is sequentially provided with a cutting segment 4081 and a wire passing segment 4082 from top to bottom, and the cross section of the cutting segment 4081 is in an hourglass shape with two wide ends and a gradually narrowed middle part along the X direction; the cut surface may be chamfered at the same time as the cutting. The wire passing sections 4082 are strip-shaped structures symmetrically distributed at intervals on two sides of the lower end of the cut line section 4081 along the X direction, and the enameled wires pass through the gaps in the middle of the cut line section 4081 along the Y direction;

a lower cutter holder 409 is fixedly installed on the upper side of the thread cutting base 406, a lower cutting die 410 corresponding to the cutting cutter 408 is detachably and fixedly installed on the lower cutter holder 409, a cutter hole matched with the cutting segment 4081 of the cutting cutter 408 is formed in the lower cutting die 410, and the cutting cutter 408 is movably matched in the cutter hole along the Z direction;

the lower cutter holder 409 is provided with two line snapping blocks 412 which are respectively positioned in front of and behind the lower shearing die 410 along the Y direction, and each line snapping block 412 comprises a roller holder 4121, a pair of vertical needles 4123 of which the axes are rotationally matched on the roller holder 4121 along the Z direction and a transverse needle 4122 of which the axes are rotationally matched on the roller holder 4121 along the X direction; the transverse needle 4122 is located at the inner side close to the cutting knife 408 and used for supporting the enameled wire, and the vertical needle 4123 is located at the outer side and used for limiting the enameled wire in the x direction and preventing the enameled wire from shaking. The horizontal needle 4122 and the vertical needle 4123 are both cylindrical and can rotate around the shaft, so that the friction between the horizontal needle 4122 and the vertical needle 4123 and the surface of the enameled wire is reduced.

Line ball 411 has set firmly on bullet line piece 412 upside, prevents that the enameled wire from being carried partially by cutting off cutter 408 when cutting off cutter 408 lifts up, and cutting off cutter 408 runs through line ball 411 and along Z to rather than clearance fit, and line ball 411's upside has set firmly line guide bar 413 along Z to, cuts line guide bar 413 and runs through last cutter seat 407 and rather than along Z to clearance fit, can play the effect of cutting off cutter seat 407 on stabilizing, prevents that it from rocking when reciprocating.

The lower side of the thread trimming base 406 is provided with a linear sliding block 414 along the Y direction, the linear sliding block 414 is matched with the guide rail in the Y direction for use, and when the thread trimming mechanism is driven by an external power mechanism to move along the Y direction, the linear sliding block 414 slides along the guide rail in the Y direction.

The front side of the trimming base 406 is fixedly provided with a wire dragging base 415 along the Y direction, and a plurality of wire supporting frames 416 are arranged on the wire dragging base 415 along the Y direction in a sliding fit manner and used for supporting the enameled wires and keeping the enameled wires to move stably.

The enameled wire passes through between the shearing lower die 410 and the wire pressing block 411 along the Y direction, moves forward under the traction of an external traction mechanism, and during cutting, the wire shearing servo motor 402 drives the wire shearing moving plate 404 to move downwards along the wire shearing upright post 405, so that the cutting knife 408 is driven to move downwards, the enameled wire is sheared by cooperating with the shearing lower die 410, and chamfering is completed while cutting. Subsequently, the trimming servo motor 402 drives the trimming moving plate 404 to move up along the trimming column 405, and lifts the cutting blade 408 to complete one trimming.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The enameled wire trimming mechanism is characterized by comprising a top plate (401) located in an XOY plane, a trimming servo motor (402) arranged on the top plate (401) downwards along a Z-direction output shaft, a plurality of trimming upright columns (405) arranged on the lower side of the top plate (401) along the Z direction, and a trimming base (406) parallel to the top plate (401) and fixedly arranged at the lower ends of the trimming upright columns (405);

a trimming moving plate (404) parallel to the top plate (401) is arranged between the top plate (401) and the trimming base (406), the trimming moving plate (404) is penetrated by a trimming upright column (405) and is in sliding fit with the trimming upright column (405), and an output shaft of the trimming servo motor (402) is connected with the trimming moving plate (404) through a spiral transmission mechanism (403);

an upper cutter seat (407) is fixedly arranged on the lower side of the wire cutting moving plate (404), a cutting cutter (408) is detachably and fixedly arranged on the lower side of the upper cutter seat (407), the cutting cutter (408) is sequentially provided with a cutting wire section (4081) and a wire passing section (4082) from top to bottom, and the cross section of the cutting wire section (4081) is in an hourglass shape with two wide ends and a gradually narrowed middle part along X; the cross line segment (4082) is a strip-shaped structure which is symmetrically distributed at intervals along the X direction on two sides of the lower end of the tangent line segment (4081);

the upper side fixed mounting of trimming base (406) has lower cutter seat (409), detachably fixed mounting has on lower cutter seat (409) with cut off cutter (408) correspond cut off lower mould (410), cut off set up on lower mould (410) with the cutter hole that the tangent line section (4081) of cut off cutter (408) matches, cut off cutter (408) are along Z to clearance fit in the cutter hole.

2. The enameled wire trimming mechanism according to claim 1, wherein the lower cutter holder (409) is provided with two wire-springing blocks (412) respectively located in front of and behind the lower trimming die (410) along the Y-direction, and the wire-springing blocks (412) comprise a roller holder (4121), a pair of vertical pins (4123) with axes rotatably engaged with the roller holder (4121) along the Z-direction, and a horizontal pin (4122) with axes rotatably engaged with the roller holder (4121) along the X-direction.

3. The enameled wire trimming mechanism according to claim 2, characterized in that the horizontal needle (4122) is located near the inner side of the cutting knife (408) and the vertical needle (4123) is located at the outer side.

4. The enameled wire trimming mechanism according to claim 2, wherein a wire pressing block (411) is fixedly arranged on the upper side of the wire elastic block (412), and the cutting knife (408) penetrates through the wire pressing block (411) and is movably matched with the wire pressing block in the Z direction.

5. The enameled wire trimming mechanism according to claim 4, wherein a trimming guide rod (413) is fixedly arranged on the upper side of the wire pressing block (411) along the Z direction, and the trimming guide rod (413) penetrates through the upper cutter holder (407) and is movably matched with the upper cutter holder along the Z direction.

6. The enameled wire trimming mechanism according to claim 1, characterized in that the lower side of the trimming base (406) is provided with a linear slider (414) along the Y-direction.

7. The enameled wire trimming mechanism according to claim 1, wherein a wire dragging base (415) is fixedly arranged on the front side of the trimming base (406) along the Y direction, and a plurality of wire supporting frames (416) are slidably fitted on the wire dragging base (415) along the Y direction.