CN221042578U

CN221042578U - Flat wire stator cutting mechanism

Info

Publication number: CN221042578U
Application number: CN202322651070.0U
Authority: CN
Inventors: 陈敏; 蔡超; 王骏武
Original assignee: Excellence Kunshan Automation Technology Co ltd
Current assignee: Excellence Kunshan Automation Technology Co ltd
Priority date: 2023-09-28
Filing date: 2023-09-28
Publication date: 2024-05-28
Anticipated expiration: 2033-09-28

Abstract

The utility model discloses a flat wire stator cutting and leveling mechanism, which comprises: the stator cutter head is provided with a plurality of circles of through holes which correspond to the multi-layer flat copper wire groups on the flat wire stator and are used for fixing the flat copper wire groups; the movable cutter disc is positioned at one side of the flat copper wire group of the static cutter disc, which penetrates through the through holes, and is provided with at least two cutter grooves which are opposite to a plurality of through holes arranged in a row along the radial direction of the static cutter disc when the cutter disc is cut; the cutter is arranged in the cutter groove in a sliding manner, and at least comprises a first cutter and a second cutter, wherein the first cutter and the second cutter are arranged at intervals, and the cutter tip of the first cutter and the cutter tip of the second cutter are arranged in a staggered manner in the radial direction of the static cutter head; the driving mechanism is used for driving the cutter to slide along the cutter groove so as to cut flat copper wire groups, and the first cutter and the second cutter cut flat copper wire groups in different layers in batches; the cutting and leveling mechanism can balance force and vibration in the cutting and leveling process, and can realize stable cutting and leveling under the condition of lower driving force requirement, so that a cutting surface has higher precision.

Description

Flat wire stator cutting mechanism

Technical Field

The utility model relates to the field of flat wire motors, in particular to a flat wire stator cutting and leveling mechanism.

Background

In the manufacturing process of the flat wire stator winding, when the flat wire stator winding is subjected to the twisting process, the flat wire needs to be welded. The flat wire of the flat wire stator winding formed after the flat wire stator winding completes the twisting process is ragged. If there is a height difference in the flat wires being welded together, the effect of the welding is affected. Therefore, it is necessary to cut flat wires with uneven irregularities after twisting the flat wires and before welding.

The existing cutting and leveling mechanisms mainly have two cutting and leveling modes, one is one-time cutting and leveling, and the other is batch cutting and leveling. For the one-time flat cutting mechanism, the cutter with full grooves is arranged on the movable cutter head, and all cutters are operated simultaneously, so that all flat copper wires of the stator are cut off at one time. The cutting mechanism has the advantages of larger driving force and extremely high structural strength requirement. And because the stator includes many rings of flat copper wire group, there is the clearance between the adjacent flat copper wire group, when cutting a plurality of flat copper wire groups of arranging along quiet blade disc radial direction by a cutter, can appear cutting and translation and move to next group flat copper wire group after finishing cutting flat a set of flat copper wire group, appear cutting-empty-cutting-empty phenomenon promptly, lead to the atress fluctuation violently, make the vibration increase, influence cutting flat mechanism overall structure intensity and stability.

For batch square cutting, as disclosed in chinese patent CN214720185U, the cutting structure specifically includes a toothed ring meshed with a transmission gear, a wave ring is disposed in the toothed ring, a fixed disc is disposed under the wave ring, cutter mechanisms are uniformly distributed on the fixed disc, and different flat copper wire sets are driven to face the cutter mechanisms and simultaneously cut flat copper wire sets by the cutter mechanisms through rotation of the toothed ring. As another example, in chinese patent CN214544024U, a head cutting device for a motor copper wire is disclosed, where in the use process of the head cutting device, a cam seat is driven to rotate by a ring driving gear, and the inside of the cam seat is matched with a pulley, so that a moving knife is driven to move inwards to radially cut off the head of an excessive copper wire, after a group is cut, a manipulator is lifted to rotate for a certain angle, and then the copper wire is inserted again, so that the moving knife cuts the next group of flat copper wires. The cutting and leveling device has the advantages that the cutting and leveling device is low in efficiency, multiple in positioning and large in deviation of the cutting and leveling position of the flat copper wires on the stator and bisecting different batches of the flat copper wires.

In addition to the above-mentioned manner, there is also a manner in which the stator and the stationary cutter head are rotated together, but this manner requires a gap between the movable cutter and the stationary cutter head, which gap may cause a difference in the level of the cut flat copper wire between different rotation sequences, affecting the subsequent precision welding requirements.

Disclosure of Invention

In order to overcome the defects in the prior art, the embodiment of the utility model provides a flat wire stator cutting and leveling mechanism, which can balance force and vibration in the cutting and leveling process, realize stable cutting and leveling under the condition of lower driving force requirement, and enable a cutting surface to have higher precision.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a flat wire stator trimming mechanism comprising:

The stator comprises a stator blade, wherein the stator blade is provided with a plurality of circles of through holes which correspond to the multi-layer flat copper wire groups on the flat wire stator and are used for fixing the flat copper wire groups;

The movable cutter head is positioned at one side of the flat copper wire group of the static cutter head, which penetrates through the through holes, and is provided with at least two cutter grooves which are opposite to a plurality of through holes arranged in a row along the radial direction of the static cutter head when the cutter head is cut;

The cutter is arranged in the cutter groove in a sliding manner, the cutter at least comprises a first cutter and a second cutter, the first cutter and the second cutter are arranged at intervals, and the cutter point of the first cutter and the cutter point of the second cutter are arranged in a staggered manner in the radial direction of the static cutter head;

The driving mechanism is used for driving the cutter to slide along the cutter groove so as to cut flat copper wire groups, and the first cutter and the second cutter cut flat copper wire groups in different layers in batches.

The cutter tips of the cutters are arranged in the radial direction of the static cutter head in a staggered mode, namely the cutters are divided into at least two groups, different groups of cutters move simultaneously in the cutting process and contact with the flat copper wire in sequence, batch cutting is formed in the primary cutting process, and the force and vibration in the cutting process can be balanced. And the whole cutting and leveling device can realize one-time cutting and leveling, improves the cutting and leveling efficiency, reduces the relative movement times between the movable cutter disc and the static cutter disc, and ensures the cutting and leveling precision.

Preferably, the distance between the cutter point of the first cutter and the cutter point of the second cutter in the radial direction of the static cutter head is equal to the distance between two adjacent layers of flat copper wire groups; and at least one of the first knife and the second knife is used for cutting flat copper wire groups under the drive of the drive mechanism. The distance between the cutter point of the first cutter and the cutter point of the second cutter is adjusted, so that the two cutters can be matched with each other to form continuous cutting and flattening, the phenomenon of cutting-blank-cutting-blank is avoided, and the force and vibration in the cutting and flattening process are further balanced.

Preferably, the number of cutter grooves on the movable cutter disc corresponds to the number of through hole rows on the static cutter disc, and a plurality of through holes oppositely arranged along the radial direction of the static cutter disc form a row of through holes. The number of the cutter grooves on the movable cutter disc corresponds to the number of the through hole rows, and in the whole cutting and leveling process, the movable cutter disc and the static cutter disc can not rotate relatively, and a constant gap between the movable cutter disc and the static cutter disc is kept, so that the accuracy of a cutting surface is improved, and all flat copper wires are leveled. Further preferably, the movable cutterhead and the static cutterhead can be fixedly connected.

Preferably, the driving mechanism comprises a first mounting plate, a clamping disc piece and a first driving device; the chuck piece is including being fixed in on the first mounting panel and the cover is located the chuck body outside the movable cutter head, the cover is located this internal by the first rotation ring gear of first drive arrangement driven of chuck, set up in on the chuck body and by the first rotation ring gear drive is followed the gliding base claw of guide way on the chuck body, when the cutting, the base claw drives the cutter is followed the sword groove slides.

Preferably, the chuck body is uniformly provided with a plurality of base claws, the base claws are provided with bosses, and the cutter is provided with notches matched with the bosses; the boss can enter the notch along with rotation of the chuck piece, so that the base claw and the cutter are hooked in the radial direction of the static cutter head, and the base claw can drive the cutter to slide in the radial direction of the static cutter head, and radial cutting is achieved.

Preferably, the flat wire stator cutting and leveling mechanism further comprises an indexing device, the indexing device comprises a second mounting plate, a second rotating gear ring connected between the second mounting plate and the first mounting plate, a second driving wheel meshed with the second rotating gear ring, and a second motor connected with the second driving wheel. Through setting up the indexing means, utilize the indexing means to realize driving mechanism's rotation, make driving mechanism can act on different cutters respectively, reduce the power requirement, and this process only rotates driving mechanism, guarantees that quiet blade disc, moves blade disc, cutter, flat wire stator remain relatively stationary state throughout.

Preferably, the first rotating gear ring is provided with a spiral groove, and the base claw is provided with a toothed structure matched with the spiral groove, so that the base claw can be conveniently boosted.

Preferably, the cutter is provided with a reset mechanism, the reset mechanism comprises a reset rod which is parallel to the cutter, one end of the reset rod is in sliding connection with the cutter, the other end of the reset rod is inserted into a limiting hole on the periphery of the static cutterhead, which is opposite to the static cutterhead, an elastic piece is sleeved on the reset rod, and two ends of the elastic piece are respectively propped against the cutter and the static cutterhead.

Preferably, the static cutterhead is provided with a first positioning pin and a second positioning pin, and the first positioning pin and the second positioning pin are arranged in a high-low mode.

Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:

1. Through setting up two at least cutter groups, the knife tip of different cutter groups is in the radial direction looks staggered arrangement of quiet blade disc, in cutting flat in-process, makes different cutter groups can cooperate each other, forms continuous cutting flat, avoids appearing "cutting-empty-cutting-empty" phenomenon, balances the power and the vibration of cutting flat in-process.

2. The number of the cutter grooves on the movable cutter disc corresponds to the number of the through hole rows, and in the whole cutting and leveling process, the movable cutter disc and the static cutter disc can not rotate relatively, and a constant gap between the movable cutter disc and the static cutter disc is kept, so that the accuracy of a cutting surface is improved, and all flat copper wires are leveled.

3. Through setting up the indexing means, utilize the indexing means to realize actuating mechanism's rotation, make actuating mechanism can act on different cutters respectively, reduce the power requirement, and this process only rotates actuating mechanism, guarantees that quiet blade disc, move the blade disc and remain relative stationary state all the time, guarantees the precision of cut face.

The foregoing and other objects, features and advantages of the utility model will be apparent from the following more particular description of preferred embodiments, as illustrated in the accompanying drawings.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural view of a flat wire stator trimming mechanism in an embodiment of the present utility model;

FIG. 2 is a schematic diagram of a combination of a moving cutterhead and a stationary cutterhead in accordance with an embodiment of the present utility model;

FIG. 3 is a schematic view of a driving mechanism according to an embodiment of the present utility model;

FIG. 4 is a schematic diagram of a combination of a movable cutter and a driving structure in an embodiment of the present utility model;

FIG. 5 is a schematic diagram of the cutting process of the present utility model.

Reference numerals of the above drawings: 1. a static cutterhead; 11. a through hole; 12. a first positioning pin; 13. a second positioning pin; 14. a limiting hole; 2. a movable cutter head; 21. a knife slot; 3. a cutter; 31. a first knife; 32. a second knife; 33. a notch; 4. a driving mechanism; 41. a first mounting plate; 42. a chuck body; 43. a first rotating ring gear; 44. a base claw; 441. a boss; 45. a first drive wheel; 46. a first motor; 5. an indexing device; 51. a second mounting plate; 52. a second rotary ring gear; 53. a second drive wheel; 54. a second motor; 61. a reset lever; 62. a spring; 7. a flat wire stator; 71. a flat copper wire group.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Embodiment one: referring to fig. 1 to 5, a flat wire stator 7 cutting and flattening mechanism comprises a static cutter head 1, a movable cutter head 2 opposite to the static cutter head 1, and a cutter 3 arranged in the movable cutter head 2, and a driving mechanism 4 for driving the cutter 3 to slide in the movable cutter head 2 to cut flat copper wires in the static cutter head 1.

Referring to fig. 1 and 2, the stator blade 1 fixes a flat copper wire of a flat wire stator 7 during a cutting process. The static cutterhead 1 is provided with a first surface and a second surface which are opposite, a plurality of through holes 11 which are communicated with the first surface and the second surface are formed in the static cutterhead 1, and the through holes 11 are matched with the flat copper wire group 71. The plurality of through holes 11 are arranged to form a plurality of turns corresponding to the plurality of layers of flat copper wire groups 71 on the flat wire stator 7. And a plurality of through holes 11 oppositely arranged along the radial direction of the static cutterhead 1 form a row of through holes 11. Typically, one set of flat copper wire 71 includes two flat copper wires attached to each other. The flat wire stator 7 is clamped such that a flat copper wire is inserted into the through hole 11 from the first face and is passed out of the through hole 11 from the second face.

As described with reference to fig. 2 and 4, the movable cutter head 2 is located on a side of the flat copper wire set 71 of the stationary cutter head 1 penetrating the through hole 11, that is, the movable cutter head 2 is opposite to the second surface. A plurality of cutter grooves 21 are uniformly distributed on the movable cutter head 2, and the number of the cutter grooves 21 on the movable cutter head 2 corresponds to the number of the through holes 11 on the static cutter head 1. Each of the pockets 21 is disposed opposite to the through holes 11 of each row in the axial direction of the stationary cutter head 1.

A cutter 3 is slidably disposed in each of the cutter pockets 21. The cutter 3 includes a plurality of first cutters 31 and a plurality of second cutters 32, the plurality of first cutters 31 forming a group, and the plurality of second cutters 32 forming a group. The first blade 31 and the second blade 32 are disposed at a distance from each other on the movable cutter head 2. The lengths of the first blade 31 and the second blade 32 are different, and the distance between the tip of the first blade 31 and the tip of the second blade 32 in the radial direction of the stationary blade disc 1 is equal to the distance between two adjacent flat copper wire sets 71. The second blade 32 moves between the first layer flat copper wire set 71 and the second layer flat copper wire set 71 while the first blade 31 and the second blade 32 slide toward the center of the stationary blade disc 1 at the same speed, while the first blade 31 cuts the flat copper wire set 71 on the first layer opposite thereto. When the second blade 32 cuts the flat copper wire set 71 on the second layer opposite thereto, the first blade 31 moves between the first layer flat copper wire set 71 and the second layer flat copper wire set 71. In the cutting process, different groups of cutters 3 can be matched with each other to form continuous cutting and flattening, so that the phenomenon of cutting, hollowing, cutting and hollowing is avoided, and the force and vibration in the cutting and flattening process are balanced.

The driving mechanism 4 is used for driving the cutter 3 to slide along the cutter groove 21 to cut flat the flat copper wire set 71, and the first cutter 31 and the second cutter 32 cut flat copper wire sets 71 with different layers in batches.

In one embodiment, referring to fig. 3, the driving mechanism 4 includes a first mounting plate 41, a chuck member, and a first driving device. The chuck member comprises a chuck body 42 fixed on the first mounting plate 41 and sleeved outside the movable cutter head 2, a first rotating gear ring 43 sleeved in the chuck body 42 and driven by the first driving device, a base claw 44 arranged on the chuck body 42 and driven by the first rotating gear ring 43 to slide along a guide groove on the chuck body 42, and the base claw 44 drives the cutter 3 to slide along the cutter groove 21 when cutting flat. The chuck structure is utilized to realize the driving of the cutter 3, so that the operation is effective and reliable and the operation is stable.

The first driving means includes a first driving wheel 45 meshed with the first rotating ring gear 43, and a first motor 46 connected to the first driving wheel 45.

In one embodiment, the first rotating ring gear 43 is provided with a spiral groove, and the base claw 44 is provided with a tooth structure matched with the spiral groove, so that the force can be increased conveniently.

In one embodiment, six of the base jaws 44 are uniformly disposed on the chuck body 42. The base jaw 44 is provided with a boss 441, and the cutter 3 is provided with a notch 33 matched with the boss 441. The boss 441 can enter the notch 33 along with the rotation of the chuck member, so that the base jaw 44 and the cutter 3 are hooked in the radial direction of the cutterhead 1. In the hooking state, the first motor 46 drives the first driving wheel 45 to rotate, so as to drive the first rotating gear ring 43 to rotate, and further drive the base jaw 44 to slide along the guide groove on the chuck body 42, so that the force of the base jaw 44 along the radial direction of the static cutterhead 1 is transmitted to the cutter 3, and the cutter 3 radially cuts the flat copper wire.

Of the six base claws 44, three are used to drive the first blade 31, and the remaining three are used to drive the second blade 32, and the sliding first blade 31 and second blade 32 are spaced apart to balance the force and vibration during cutting. And the six base claws 44 are arranged to cut all the flat copper wires on the flat wire stator 7 into batches for flattening, so that the power requirement in each flattening cutting process can be reduced.

In one embodiment, the flat wire stator 7 cutting mechanism further includes an indexing device 5, where the indexing device 5 includes a second mounting plate 51, a second rotating ring gear 52 connected between the second mounting plate 51 and the first mounting plate 41, a second driving wheel 53 meshed with the second rotating ring gear 52, and a second motor 54 connected with the second driving wheel 53. The second electrode drives the second driving wheel 53 to rotate, so as to drive the second rotary gear ring 52 to rotate, and further, the driving mechanism 4 fixed on the second rotary gear ring 52 realizes circumferential indexing. In the above process, only the driving mechanism 4 rotates, the static cutterhead 1 and the dynamic cutterhead 2 are static relative to the second mounting plate 51, no relative motion occurs between the static cutterhead 1 and the dynamic cutterhead 2, a set gap between the static cutterhead 1 and the dynamic cutterhead 2 can be kept, the precision of a cutting surface is improved, and all flat copper wires are guaranteed to be flush.

In one embodiment, the movable cutter head 2 is fixed on the second mounting plate 51, and the diameter of the movable cutter head 2 is smaller than the inner diameters of the chuck body 42 and the dividing disc, so that the cutting and flattening mechanism can be compatible with flat wire stators 7 with different sizes.

In one embodiment, the cutter 3 is provided with a reset mechanism, the reset mechanism comprises a reset rod 61 parallel to the cutter 3, one end of the reset rod 61 is slidably connected with the cutter 3, the other end of the reset rod 61 is inserted into a limiting hole 14 opposite to the peripheral side of the static cutterhead 1, a spring 62 is sleeved on the reset rod 61, and two ends of the spring 62 respectively abut against the cutter 3 and the static cutterhead 1. Specifically, a U-shaped groove is formed at one end of the cutter 3, which is away from the cutterhead 1, and the U-shaped groove is sleeved on the reset rod 61. The length of the reset lever 61 is proportional to the length of the cutter 3. During the cutting process, the cutter 3 slides along the reset rod 61, compressing the spring 62, and generating elastic force to the cutter 3. After cutting a row of flat copper wires, the base jaw 44 is indexed with the chuck body 42 to be hooked with the adjacent cutter 3, the boss 441 rotates out of the notch 33 of one cutter 3 and rotates into the notch 33 of the other cutter 3, and the cutter 3 without the boss 441 being limited in the radial direction is reset under the action of the spring 62.

In one embodiment, the first positioning pin 12 and the second positioning pin 13 are disposed on the cutterhead 1, and the first positioning pin 12 and the second positioning pin 13 are disposed at a height. The top of the first positioning pin 12 is higher than the second positioning pin 13. The flat copper wire in the tooling disc can be guided into the static cutter disc 1 by the first positioning pin 12, and the second positioning pin 13 is used for accurately positioning the tooling disc.

The principles and embodiments of the present utility model have been described in detail with reference to specific examples, which are provided to facilitate understanding of the method and core ideas of the present utility model; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in accordance with the ideas of the present utility model, the present description should not be construed as limiting the present utility model in view of the above.

Claims

1. The utility model provides a flat wire stator cuts flat machine constructs which characterized in that includes:

2. The flat wire stator cutting and leveling mechanism according to claim 1, wherein a distance between a tip of the first knife and a tip of the second knife in a radial direction of the stationary blade disc is equal to a distance between two adjacent layers of flat copper wire groups; and at least one of the first knife and the second knife is used for cutting flat copper wire groups under the drive of the drive mechanism.

3. The flat wire stator cutting and leveling mechanism according to claim 1 or 2, wherein the number of slots on the movable cutter corresponds to the number of rows of through holes on the stationary cutter, and a plurality of through holes arranged opposite to each other in the radial direction of the stationary cutter form a row of through holes.

4. The flat wire stator cutting mechanism of claim 3, wherein the drive mechanism comprises a first mounting plate, a chuck member, and a first drive device; the chuck piece is including being fixed in on the first mounting panel and the cover is located the chuck body outside the movable cutter head, the cover is located this internal by the first rotation ring gear of first drive arrangement driven of chuck, set up in on the chuck body and by the first rotation ring gear drive is followed the gliding base claw of guide way on the chuck body, when the cutting, the base claw drives the cutter is followed the sword groove slides.

5. The flat wire stator cutting mechanism of claim 4, wherein the first drive means comprises a first drive wheel meshed with the first rotating ring gear, and a first motor coupled to the first drive wheel.

6. The flat wire stator cutting and leveling mechanism according to claim 4, wherein a plurality of base claws are uniformly arranged on the chuck body, bosses are arranged on the base claws, and notches matched with the bosses are arranged on the cutter; the boss can enter the notch along with rotation of the chuck piece, so that the base claw and the cutter are hooked in the radial direction of the static cutter head.

7. The flat wire stator cutting mechanism of claim 4, further comprising an indexing device, the indexing device comprising a second mounting plate, a second rotating ring gear coupled between the second mounting plate and the first mounting plate, a second drive wheel meshed with the second rotating ring gear, and a second motor coupled to the second drive wheel.

8. The flat wire stator cutting and leveling mechanism of claim 4, wherein the first rotating ring gear is provided with a spiral groove, and the base jaw is provided with a tooth structure matched with the spiral groove.

9. The flat wire stator cutting and leveling mechanism of claim 1, wherein the cutter is provided with a reset mechanism, the reset mechanism comprises a reset rod which is arranged in parallel with the cutter, one end of the reset rod is in sliding connection with the cutter, the other end of the reset rod is inserted into a limit hole opposite to the peripheral side of the static cutter disc, an elastic piece is sleeved on the reset rod, and two ends of the elastic piece respectively abut against the cutter and the static cutter disc.

10. The flat wire stator cutting and leveling mechanism of claim 1, wherein the stationary cutter head is provided with a first positioning pin and a second positioning pin, and the first positioning pin and the second positioning pin are arranged in a high-low mode.