CN213002151U - Female die structure for punching inner and outer diameters of iron core - Google Patents
Female die structure for punching inner and outer diameters of iron core Download PDFInfo
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- CN213002151U CN213002151U CN202021872696.4U CN202021872696U CN213002151U CN 213002151 U CN213002151 U CN 213002151U CN 202021872696 U CN202021872696 U CN 202021872696U CN 213002151 U CN213002151 U CN 213002151U
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Abstract
The utility model discloses a concave die structure for punching the inner and outer diameters of an iron core, which comprises a lower die holder and an upper die holder corresponding to the lower die holder; the die is characterized by also comprising an inner diameter convex die and an outer diameter concave die which are arranged on the lower die base, and an inner diameter concave die and an outer diameter convex die which are arranged on the upper die base. The utility model discloses a through set up internal diameter die and external diameter terrace die on the upper die base, set up internal diameter terrace die, external diameter die on the lower die base, make silicon steel sheet accomplish punching press silicon steel sheet external diameter and hole simultaneously when punching press, guarantee that the external diameter of silicon steel sheet is unanimous with the hole axiality to guarantee that the iron core external diameter is unanimous with the hole axiality, increase product quality, and raise the efficiency, it is troublesome to reduce the clamping.
Description
Technical Field
The utility model relates to a die structure specifically indicates a die structure that is used for punching press of iron core internal and external diameter.
Background
The iron core is an indispensable part in a motor rotor or a stator, the iron core is generally formed by riveting and stacking a plurality of silicon steel sheets, inner holes are basically formed in the iron core, the silicon steel sheets are formed by stamping when being manufactured, at present, a plurality of factories perform stamping step by step when manufacturing the silicon steel sheets, the shapes of the silicon steel sheets are firstly stamped, then the inner holes are stamped in the centers of the silicon steel sheets by secondary stamping, but the silicon steel sheets which are stamped repeatedly have certain errors of coaxiality between the inner holes and the outer diameters due to secondary clamping or the precision of a punch press, so that the product quality is not over-critical, and the efficiency of the method is low. For this purpose, a die structure for punching the inner and outer diameters of the iron core is provided.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the above problems and providing a die structure for punching the inner and outer diameters of an iron core.
In order to achieve the purpose, the utility model provides a die structure for stamping the inner diameter and the outer diameter of an iron core, which comprises a lower die holder and an upper die holder corresponding to the lower die holder; the die is characterized by also comprising an inner diameter convex die and an outer diameter concave die which are arranged on the lower die base, and an inner diameter concave die and an outer diameter convex die which are arranged on the upper die base.
Further preferably, a backing plate is further mounted on the upper die base, a male die fixing plate is mounted on the backing plate, an outer-diameter male die is mounted on the male die fixing plate, and the backing plate, the male die fixing plate, the outer-diameter male die and the lower die base are fixedly connected through screws.
Preferably, the outer diameter male die is provided with an inner diameter female die, and the upper die base above the inner diameter female die is provided with an inner diameter waste discharge pipe.
Further preferably, the outer diameter male die is also movably provided with a discharging plate seat and a discharging plate.
Further preferably, a female die fixing plate is mounted on the lower die holder, an outer diameter female die is mounted on the female die fixing plate, an outer diameter discharging plate is slidably mounted on the outer diameter female die, an inner diameter male die is slidably mounted on the outer diameter discharging plate, and one end of the inner diameter male die is fixedly connected with the lower die holder through a screw.
Preferably, the lower die base is further provided with a spring mounting hole and a connecting hole, and the spring mounting hole is communicated with the connecting hole; a stripper plate connecting rod is arranged in the connecting hole and is fixedly connected with the outer diameter stripper plate through a screw; still install the discharge spring in the spring mounting hole, spring mounting hole port department still installs the plug screw.
Further preferably, the connecting rod of the stripper plate is further provided with a limiting step.
The utility model discloses a set up internal diameter die and external diameter terrace die on the upper die base, set up internal diameter terrace die, external diameter die on the lower die base, make silicon steel sheet accomplish punching press silicon steel sheet external diameter and hole simultaneously when punching press, guarantee that the external diameter of silicon steel sheet is unanimous with the hole axiality to guarantee that the iron core external diameter is unanimous with the hole axiality, increase product quality, and raise the efficiency, it is troublesome to reduce the clamping.
Drawings
FIG. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic view of a partially enlarged structure of an upper die holder of the utility model;
fig. 3 is a schematic view of the local section structure of the lower die holder of the present invention.
Illustration of the drawings: 1. a lower die holder; 11. fixing a female die plate; 12. an outer diameter stripper plate; 13. a spring mounting hole; 14. connecting holes; 15. a stripper plate connecting rod; 16. a discharge spring; 17. a plug screw; 18. a limiting step; 2. an upper die holder; 21. a base plate; 22. a male die fixing plate; 23. an inner diameter waste discharge pipe; 3. an inner diameter punch; 4. an outer diameter female die; 5. an inner diameter concave die; 6. an outer diameter male die; 61. a discharge plate seat; 62. and (4) a stripper plate.
Detailed Description
The following will further describe a die structure for punching inner and outer diameters of an iron core according to the present invention with reference to the accompanying drawings.
Referring to fig. 1-3, the die structure for punching the inner and outer diameters of the iron core in the embodiment includes a lower die holder 1 and an upper die holder 2 corresponding to the lower die holder 1; the die is characterized by also comprising an inner diameter convex die 3 and an outer diameter concave die 4 which are arranged on the lower die holder 1, and an inner diameter concave die 5 and an outer diameter convex die 6 which are arranged on the upper die holder 2; through setting up internal diameter die 5 and external diameter terrace die 6 on upper die base 2, set up internal diameter terrace die 3, external diameter die 4 on lower die base 1, make silicon steel sheet accomplish punching press silicon steel sheet external diameter and hole simultaneously when punching press once, guarantee that the external diameter of silicon steel sheet is unanimous with the hole axiality to guarantee that the iron core external diameter is unanimous with the hole axiality, increase product quality, and raise the efficiency, it is troublesome to reduce the clamping.
Further, referring to fig. 1-2, a backing plate 21 is further mounted on the upper die holder 2, a punch retainer 22 is mounted on the backing plate 21, an outer-diameter punch 6 is mounted on the punch retainer 22, and the backing plate 21, the punch retainer 22, the outer-diameter punch 6 and the lower die holder 1 are fixedly connected through screws.
Further, referring to fig. 1-2, an inner diameter female die 5 is mounted on the outer diameter male die 6, and an inner diameter waste discharge pipe 23 is mounted on the upper die base 2 above the inner diameter female die 5; through setting up internal diameter waste discharge pipe 23 in the installation of internal diameter die 5 top, produced waste material at first blocks in internal diameter die 5 when will punching press the hole, after the punching press of multi-disc silicon steel sheet, produced internal diameter waste material piles up in internal diameter die 5 and rises gradually, it discharges to internal diameter waste discharge pipe 23 after rising, need not artifical the processing in the punching press, only need in the exit of internal diameter waste discharge pipe 23 after the centralized processing can, simple convenient and fast, and the waste material passes through interference fit card in internal diameter die 5 after the punching press, consequently, the waste material can not follow internal diameter die 5 and drop and influence follow-up punching press in the punching press.
Further, referring to fig. 1-2, the outer diameter punch 6 is further movably provided with a discharging plate seat 61 and a discharging plate 62, and by setting the discharging plate 62, after the punching is completed, the punched silicon steel sheet is discharged from the outer diameter punch 6 by the weight of the discharging plate 62, so as to avoid being stuck on the outer diameter punch 6.
Further, as shown in fig. 1 and fig. 3, a female die fixing plate 11 is mounted on the lower die holder 1, an outer diameter female die 4 is mounted on the female die fixing plate 11, an outer diameter discharging plate 12 is slidably mounted on the outer diameter female die 4, an inner diameter male die 3 is slidably mounted on the outer diameter discharging plate 12, and one end of the inner diameter male die 3 is fixedly connected with the lower die holder 1 through a screw.
Further, referring to fig. 3, a spring mounting hole 13 and a connecting hole 14 are further formed in the lower die holder 1, and the spring mounting hole 13 is communicated with the connecting hole 14; a stripper plate connecting rod 15 is arranged in the connecting hole 14, and the stripper plate connecting rod 15 is fixedly connected with the outer diameter stripper plate 12 through a screw; a discharging spring 16 is further installed in the spring installation hole 13, and a screw plug 17 is further installed at the port of the spring installation hole 13; through the setting and the cooperation use of discharge spring 16 and external diameter stripper 12, accomplish the back at the silicon steel sheet punching press, drive stripper connecting rod 15 and external diameter stripper 12 upward movement through discharge spring 16's the power that resets, avoid the silicon steel sheet card on external diameter die 4 and influence follow-up silicon steel sheet punching press.
Further, as shown in fig. 3, the stripper connecting rod 15 is further provided with a limiting step 18, and through the limiting step, one end of the stripper connecting rod 15 is clamped at the joint of the spring mounting hole 13 and the connecting hole 14 through the limiting step 18, so that the situation that the outer diameter stripper 12 is excessively ejected out due to the overlarge reset force of the discharge spring 16 and exceeds the end surface of the lower die holder 1 and the outer diameter die 4 is avoided, and subsequent stamping work cannot be performed.
The utility model has the working process; referring to the attached drawings 1-3, when a feeding mechanism on a punch press sends a material between a lower die holder 1 and an upper die holder 2, a transmission mechanism on the punch press drives the lower die holder 1 to move upwards, after an outer diameter male die 6 and an outer diameter female die 4 clamp the material, the material is continuously pushed, the outer diameter female die 4 and the lower die holder 1 push a discharging plate and a discharging seat to move upwards on the outer diameter male die 6, the outer diameter male die 6 punches a material piece and an outer diameter discharging plate 12 to move downwards, the outer diameter discharging plate 12 drives a connecting rod 15 of a discharging plate 62 to extrude a discharging spring 16, meanwhile, the inner diameter male die 3 and the inner diameter female die 5 are matched to punch an inner hole, waste materials punched by the inner hole are clamped on the inner diameter female die 5 through interference fit, the punch press drives the lower die holder 1 to reset, the discharging plate 62 and the discharging seat 61 move; meanwhile, the discharging spring 16 is not subjected to extrusion force, so that the outer diameter discharging plate 12 is driven to move upwards through the reset force, and the silicon steel sheet is pushed out of the outer diameter female die 4; and then the cycle starts.
The scope of the present invention is not limited to the above embodiments and their variations. The present invention is not limited to the above embodiments, and other modifications and substitutions may be made by those skilled in the art.
Claims (7)
1. A female die structure for punching the inner diameter and the outer diameter of an iron core comprises a lower die base (1) and an upper die base (2) corresponding to the lower die base (1); the die is characterized by further comprising an inner diameter convex die (3) and an outer diameter concave die (4) which are arranged on the lower die base (1), and an inner diameter concave die (5) and an outer diameter convex die (6) which are arranged on the upper die base (2).
2. The die structure for punching the inner diameter and the outer diameter of the iron core according to claim 1, wherein: the die is characterized in that the upper die holder (2) is further provided with a backing plate (21), the backing plate (21) is provided with a male die fixing plate (22), the male die fixing plate (22) is provided with an outer-diameter male die (6), and the backing plate (21), the male die fixing plate (22), the outer-diameter male die (6) and the lower die holder (1) are fixedly connected through screws.
3. The die structure for punching the inner diameter and the outer diameter of the iron core according to claim 2, wherein: an inner diameter female die (5) is installed on the outer diameter male die (6), and an inner diameter waste discharge pipe (23) is installed on the upper die base (2) above the inner diameter female die (5).
4. A die structure for punching inner and outer diameters of an iron core according to claim 3, wherein: and a discharging plate seat (61) and a discharging plate (62) are also movably arranged on the outer diameter male die (6).
5. The die structure for punching the inner diameter and the outer diameter of the iron core according to claim 1, wherein: install die holder (11) on die holder (1), install external diameter die (4) on die holder (11), slidable mounting has external diameter stripper (12) on external diameter die (4), and slidable mounting has internal diameter terrace die (3) on external diameter stripper (12), screw and die holder (1) fixed connection are passed through to internal diameter terrace die (3) one end.
6. A die structure for punching inner and outer diameters of an iron core according to claim 5, wherein: the lower die holder (1) is also provided with a spring mounting hole (13) and a connecting hole (14), and the spring mounting hole (13) is communicated with the connecting hole (14); a stripper plate connecting rod (15) is arranged in the connecting hole (14), and the stripper plate connecting rod (15) is fixedly connected with an outer diameter stripper plate (12) through a screw; still install discharge spring (16) in spring mounting hole (13), screw plug (17) are still installed to spring mounting hole (13) port department.
7. The die structure for punching the inner diameter and the outer diameter of the iron core according to claim 6, wherein: and the stripper plate connecting rod (15) is also provided with a limiting step (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021872696.4U CN213002151U (en) | 2020-09-01 | 2020-09-01 | Female die structure for punching inner and outer diameters of iron core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021872696.4U CN213002151U (en) | 2020-09-01 | 2020-09-01 | Female die structure for punching inner and outer diameters of iron core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213002151U true CN213002151U (en) | 2021-04-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021872696.4U Active CN213002151U (en) | 2020-09-01 | 2020-09-01 | Female die structure for punching inner and outer diameters of iron core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213002151U (en) |
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2020
- 2020-09-01 CN CN202021872696.4U patent/CN213002151U/en active Active
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