CN216501810U

CN216501810U - Notching die of open type leakage structure with multiple non-connected excess materials

Info

Publication number: CN216501810U
Application number: CN202123174938.XU
Authority: CN
Inventors: 王斌; 任惠生
Original assignee: Binzhou Bright Electric Co ltd
Current assignee: Binzhou Bright Electric Co ltd
Priority date: 2021-12-17
Filing date: 2021-12-17
Publication date: 2022-05-13
Anticipated expiration: 2031-12-17

Abstract

The utility model relates to a plurality of punching dies of a non-connected excess material open type leaking structure, belonging to the technical field of production of a motor rotor and a motor stator; the cutting device comprises an upper die, a lower die, a fixed seat and an outer blade ring, wherein the upper die is provided with a convex die holder and a plurality of convex modules, the convex modules are fixedly connected in the convex die holder, and the lower die is provided with a plurality of concave die grooves and a discharge groove; the fixed seat is arranged under the lower die, the upper part of the fixed seat is provided with a plurality of teeth matched with the discharge chute, the middle of each tooth is high, and the periphery of each tooth is inclined downwards; the lower surface of the convex die holder is fixedly connected with the upper surface of the outer blade ring, and the bottom surface of the outer blade ring is flush with the lower end surface of the convex die block; according to the utility model, the blank with the stator punching sheet groove type excess material is used for punching the rotor punching sheet, and the outer edge ring is arranged on the periphery of the convex module, so that the excess material of the stator punching sheet is cut off when the rotor punching sheet is punched, and the number of dies is reduced; and the discharge chute with openings at the lower end of the female die groove and the conical surface are matched with the fixed seat to discharge the excess materials to the periphery, so that the accumulation of the excess materials is reduced, and the punching efficiency is improved.

Description

Notching die of open type leakage structure with multiple non-connected excess materials

Technical Field

The utility model relates to the technical field of production of a motor rotor and a motor stator, in particular to a notching die with a plurality of non-connected excess material open type leaking structures.

Background

The stator punching sheet and the rotor punching sheet are two main parts of the alternating current motor, and the common cold punching die punching forming is a main processing method of the alternating current motor. Three sets of (blanking die, stator slot die and rotor slot die) dies are usually required for punching stator punching sheets and rotor punching sheets. In order to improve the precision of the stator punching sheet, the die machining means can machine and manufacture a die capable of punching the stator punching sheet at one time, and a blanking die is omitted. When the blank is used for punching a rotor punching sheet by using a rotor punching sheet notching die with an original structure, the groove type excess material of the stator punching sheet cannot be separated from the rotor punching sheet, the groove type excess material of the stator punching sheet must be firstly cut off, and then the rotor punching sheet is punched by using the die of the rotor punching sheet, namely, although the blanking die is omitted for improving the precision of the stator punching sheet, three sets of dies are still needed for punching the stator punching sheet and the rotor punching sheet, and the efficiency is lower.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems of the background art, the utility model provides a notching die with a plurality of non-connected excess material open type leaking structures.

The utility model provides a notching die with a plurality of non-connected excess material open type leaking structures, which adopts the following technical scheme: a plurality of notching dies of a non-connected excess material open type leaking structure comprise an upper die and a lower die, wherein the upper die comprises a plurality of male die blocks, a plurality of female die grooves are formed in the upper end of the lower die, and the male die blocks are matched with the female die grooves; the notching die further comprises an outer blade ring, the outer blade ring is in a circular ring shape, the outer blade ring is arranged on the periphery of the convex die block, a certain gap is formed between the inner circular surface of the outer blade ring and the outer edge of the lower die, and the bottom surface of the outer blade ring is flush with the lower end surface of the convex die block.

Preferably, the upper die further comprises a convex die holder, and the convex die holder is disc-shaped; the upper ends of the plurality of convex modules are fixedly connected in the convex die holder in a balanced manner; the lower surface of the convex die holder is fixedly connected with the upper surface of the outer blade ring, and the diameter of the excircle of the convex die holder is the same as that of the excircle of the outer blade ring; the inner circle surface of the outer blade ring is connected with the outer ring of the convex module.

Preferably, the lower end of the lower die is further fixedly provided with a plurality of discharge chutes, the discharge chutes are communicated with the die groove, the diameter of the excircle of each discharge chute is the same as that of the excircle of the widest part of the die groove, and the discharge chutes are opened to the periphery.

Preferably, the notching die further comprises a fixed seat; the fixing seat is arranged under the lower die, and teeth matched with the discharge chute are arranged on the upper portion of the fixing seat.

Preferably, the teeth are high in the middle and inclined downwards at the periphery.

Preferably, the lower end face of the fixed seat is circular, and the diameter of the lower end face of the fixed seat is larger than the groove-shaped diameter of the lower die.

Preferably, the number of teeth is the same as the number of discharge chutes.

In summary, the utility model has the following beneficial technical effects:

1. according to the utility model, the annular outer blade ring is arranged on the periphery of the convex module, the bottom surface of the outer blade ring is level to the lower end surface of the convex module, when the upper die and the lower die are matched to punch the rotor punching sheet, the inner circle of the outer blade ring and the lower die are matched to cut off the excess material of the stator punching sheet from the rotor punching sheet, the number of dies is reduced, the production cost is reduced, the punching of the rotor punching sheet can be completed in one step, and the production efficiency is improved;

2. according to the utility model, the fixed seat is arranged under the lower die, the teeth matched with the discharge chute are arranged on the fixed seat, the middle of the teeth is high, the periphery of the teeth is inclined downwards in a gradient manner, and the excess material generated by punching falls to the fixed seat along the discharge chute and is scattered to the periphery, so that the condition that the excess material of the rotor punching sheet is accumulated on the fixed seat is relieved, and the efficiency is improved.

Drawings

FIG. 1 is a schematic view of the assembly of an upper die and a lower die;

FIG. 2 is a schematic view of the upper die and the outer rim;

FIG. 3 is a schematic view of the outer rim being connected to the male mold block;

FIG. 4 is a schematic view of the lower die;

FIG. 5 is a schematic view of the anchor block;

FIG. 6 is a schematic view of the connection of a stator lamination slug and a rotor lamination slug;

FIG. 7 is a schematic cross-sectional view of the lower mold and the holder;

FIG. 8 is a schematic view of a finished stator lamination;

FIG. 9 is a schematic view of a rotor lamination blank;

fig. 10 is a schematic view of a finished rotor sheet.

Description of reference numerals:

1. an upper die; 11. a convex die holder; 12. a male module;

2. an outer blade ring;

3. a lower die; 31. a die cavity; 32. a discharge chute;

4. a fixed seat; 41. teeth;

5. stator punching sheets; 51. excess material of the stator punching sheet;

6. rotor punching sheets; 61. a rotor sheet blank; 62. and (5) excess material of the rotor punching sheet.

Detailed Description

The present invention is described in further detail below with reference to figures 1-10.

The embodiment of the utility model discloses a plurality of punching dies of a non-connected excess material open type leaking structure.

As shown in fig. 1, the notching die of the open type leaking structure with a plurality of non-connected remainders comprises an upper die 1, an outer edge ring 2, a lower die 3 and a fixed seat 4.

As shown in fig. 2, the upper die 1 includes a die holder 11 (disc-shaped) and a plurality of die blocks 12, and the upper ends of the plurality of die blocks 12 are uniformly and fixedly connected in the die holder 11.

As shown in fig. 2 and 3, the outer blade ring 2 is in a ring shape, the outer blade ring 2 is arranged on the periphery of the convex module 12, the bottom surface of the outer blade ring 2 is flush with the lower end surface of the convex module 12, and the outer ring of the convex module 12 is connected with the inner circular surface of the outer blade ring 2; the upper surface of the outer blade ring 2 is fixedly connected with the lower surface of the convex die holder 11, the diameter of the outer blade ring 2 is the same as that of the convex die holder 11, and a certain gap is formed between the inner circular surface of the outer blade ring 2 and the outer edge of the lower die 3.

As shown in fig. 4, the upper end of the lower mold 3 is provided with a plurality of concave mold grooves 31, and the concave mold grooves 31 are matched with the convex mold blocks 12; the lower end of the lower die 3 is provided with a plurality of discharge chutes 32 which are opened to the periphery, the die groove 31 is communicated with the discharge chutes 32, and the diameter of the excircle of the discharge chute 32 is the same as that of the widest part of the slot die of the die groove 31.

As shown in fig. 5 and 7, the fixing seat 4 is arranged right below the lower die 3, and the lower end surface of the fixing seat 4 is circular and has a diameter larger than the groove-shaped diameter of the lower die 3; the fixed seat 4 is provided with teeth 41 matched with the die groove 31, the middle of the teeth 41 is high, the periphery of the teeth 41 is inclined downwards in a gradient manner, and the number of the teeth 41 is the same as that of the discharge chutes 32.

Fig. 8 is a schematic view of the stator lamination 5.

As shown in fig. 6 and 9, after the punching of the stator punching 5 is completed, the remaining blank is used as a rotor punching blank 61, and when the rotor punching 6 is punched, the part of the stator punching remainder 51 marked with "a" is opposite to the opening of the concave die groove 31, and the corresponding section of the opening of the concave die groove 31 is not cut off by the outer blade ring 2, so that the part of the stator punching remainder 51 marked with "a" is always connected with the rotor punching 62 remainder.

Fig. 10 is a schematic view of the rotor sheet 6.

The working mode of the notching dies with the plurality of non-connected excess material open type leaking structures in the embodiment of the utility model is as follows: the stator punching sheet 5 (shown in fig. 8) is punched through the stator punching sheet notching die, the rest blank (shown in fig. 9) is used as a rotor punching sheet blank 61, the rotor punching sheet blank 61 is placed right above the lower die 3, and the stator punching sheet remainder 51 is outside the groove shape of the lower die 3.

The upper die 1 is punched downwards from the right upper side, the upper die 1 is matched with the lower die 3, the convex die block 12 is pressed downwards into the concave die groove 31, the punched rotor punching excess material 62 is cut off, the stator punching excess material 51 marked with the part 'a' is connected with the rotor punching excess material 62 all the time (as shown in fig. 6), the inner circle of the outer blade ring 2 is matched with the lower die 3 to cut off the remaining stator punching excess material 51 from the rotor punching blank 61, and the rotor punching 6 is obtained (as shown in fig. 10).

The rotor punching remainder 62 and the stator punching remainder 51 shown as "a" fall downwards onto the fixed seat 4 along the discharge chute 32, the rest of the stator punching remainder 51 fall onto the fixed seat 4 along the outer side of the lower die 3, and the stator punching remainder 51 and the rotor punching remainder 62 are scattered around along the fixed seat 4 (as shown in fig. 7).

The above are all preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered by the protection scope of the utility model.

Claims

1. A plurality of punching dies of a non-connected excess material open type leaking structure comprises an upper die (1) and a lower die (3), wherein the upper die (1) comprises a plurality of male die blocks (12), a plurality of female die grooves (31) are formed in the upper end of the lower die (3), and the male die blocks (12) are matched with the female die grooves (31); the method is characterized in that:

the die is characterized by further comprising an outer blade ring (2), wherein the outer blade ring (2) is annular, the outer blade ring (2) is arranged on the periphery of the convex die block (12), a certain gap is formed between the inner circular surface of the outer blade ring (2) and the outer edge of the lower die (3), and the bottom surface of the outer blade ring (2) is flush with the lower end surface of the convex die block (12).

2. The notching die of claim 1, wherein the notching die has a plurality of unconnected excess open-type material leaking structures, and wherein: the upper die (1) further comprises a convex die holder (11), and the convex die holder (11) is disc-shaped; the upper ends of the plurality of convex modules (12) are uniformly and fixedly connected in the convex die holder (11); the lower surface of the convex die holder (11) is fixedly connected with the upper surface of the outer blade ring (2), and the diameter of the excircle of the convex die holder (11) is the same as that of the excircle of the outer blade ring (2);

the inner circle surface of the outer blade ring (2) is connected with the outer ring of the convex module (12).

3. The notching die of claim 1, wherein the notching die has a plurality of unconnected excess open-type material leaking structures, and wherein: the fixed a plurality of blowholes (32) that are equipped with of lower mould (3) lower extreme, blowhole (32) and die cavity (31) are linked together, the excircle of blowhole (32) with the excircle diameter of the widest department of die cavity (31) is the same, just blowhole (32) are to opening all around.

4. The notching dies of claim 3, wherein said notching dies are configured to form multiple open-ended skip structures without joining excess material, and wherein said notching dies are configured to: the notching die also comprises a fixed seat (4); the fixing seat (4) is arranged right below the lower die (3), and teeth (41) matched with the discharge chute (32) are arranged on the upper portion of the fixing seat (4).

5. The notching die of claim 4, wherein said notching die further comprises a plurality of open-ended skip-structures, and wherein said notching die further comprises: the middle of the tooth (41) is high, and the periphery of the tooth is inclined downwards.

6. The notching dies of claim 5, wherein said notching dies are configured to form multiple open-ended skip structures without joining excess material, and wherein said notching dies are configured to: the lower end face of the fixed seat (4) is circular, and the diameter of the lower end face of the fixed seat is larger than the groove-shaped diameter of the lower die (3).

7. The notching die of claim 4, wherein said notching die further comprises a plurality of open-ended skip-structures, and wherein said notching die further comprises: the number of the teeth (41) is the same as the number of the discharge chutes (32).