CN210387411U

CN210387411U - End ring cold rotary forging die

Info

Publication number: CN210387411U
Application number: CN201921249548.4U
Authority: CN
Inventors: 方一蔚; 王启龙
Original assignee: Jiangsu Yuanyan Machinery Co ltd
Current assignee: Jiangsu Yuanyan Machinery Co ltd
Priority date: 2019-08-05
Filing date: 2019-08-05
Publication date: 2020-04-24
Anticipated expiration: 2029-08-05

Abstract

The utility model discloses a cold pendulum of end links mould of forging a ring, include: the die comprises a die holder, a die core, a lower die gasket, a lower die pressing ring, an upper die pressing ring, an ejector plate and ejector rods, wherein the die core, the lower die and the lower die pressing ring are sequentially and fixedly arranged above the die holder from inside to outside, the lower die gasket is arranged between the die core and the lower die, the die core, the lower die and the lower die pressing ring form a workpiece placing area, the lower bottom surface of the upper die is an annular inclined surface, the upper die is fixedly connected with a swing head driving mechanism through the upper die pressing ring, when the upper die is driven by the swing head driving mechanism to swing the swing head in a rotating mode, the upper top surface of the workpiece can be extruded in a rolling mode along the circumferential direction of the workpiece through the lower bottom surface of the upper die, the ejector rods are multiple and are uniformly distributed along the circumferential direction of the ejector plate, the lower portion of the ejector rods is fixedly. The end ring cold rotary forging die is reasonable in structure, and the previous cold forging effect can be achieved by using smaller pressure.

Description

End ring cold rotary forging die

Technical Field

The utility model relates to a forging equipment technical field provides a cold pendulum of motor copper end links moulds of forging a ring very much.

Background

At present, the cold deformation of a motor copper end ring product generally adopts air hammer cold forging, and the mode is difficult to realize the accurate control of the size, so that the inner diameter and the outer diameter and the follow-up process allowance (the inner diameter and the outer diameter allowances are set to be 10mm, and the thickness allowances are set to be more than 3 mm) are required to be set. In addition, the end ring material utilization rate is low in the mode, and when the mode is adopted to hammer a workpiece, the end ring can be subjected to cold forging only by needing larger hammering force.

Therefore, it is an urgent need to provide a new type of cold forging apparatus to increase material utilization, reduce manufacturing cost, achieve precise control of size, and avoid heavy hammering.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing an end ring cold pendulum rolls mould to solve current end ring cold forging mode and need adopt to beat, be difficult to realize accurate control, the material utilization ratio low, the high scheduling problem of manufacturing cost of size energetically.

The utility model provides a technical scheme is: end ring cold pendulum rolls mould, includes: the die comprises a die holder, a die core, a lower die gasket, a lower die pressing ring, an upper die pressing ring, an ejector plate and ejector rods, wherein the die core, the lower die and the lower die pressing ring are sequentially and fixedly arranged above the die holder from inside to outside, the lower die gasket is arranged between the die core and the lower die, the die core, the lower die and the lower die pressing ring form a workpiece placing area, the lower bottom surface of the upper die is an annular inclined surface, the upper die is fixedly connected with a swing head driving mechanism through the upper die pressing ring, when the upper die is driven by the swing head driving mechanism to swing the swing head in a rotating mode, the upper top surface of the workpiece can be extruded in a rolling mode along the circumferential direction of the workpiece through the lower bottom surface of the upper die, the ejector rods are multiple and are uniformly distributed along the circumferential direction of the ejector plate, the lower portion of the ejector rods is fixedly.

Preferably, the inclination angle of the lower bottom surface of the upper die is 1-5 degrees.

Preferably, a circular groove is formed in the center of the upper portion of the die holder, a convex rib matched with the circular groove is formed in the lower portion of the inner side of the die core, and the die core and the die holder can be coaxially arranged.

Preferably, the mold core, the lower mold and the lower mold pressing ring are fixedly connected with the mold base through screws.

Further preferably, the lower part of the ejector rod penetrates through the ejector plate and then is locked by a bolt.

More preferably, the number of the lift pins is 6.

Further preferably, the upper die, the die holder and the ejector plate are coaxially arranged.

The utility model provides a cold process of forging as follows of mould is rolled to work piece to end links cold pendulum: the workpiece is placed in a workpiece placing area formed by the mold core, the lower mold gasket and the lower mold, then the upper mold falls down, when the upper mold falls to be abutted against the mold core, the rotary swing head of the upper mold is controlled to enable the lower bottom surface of the inclined upper mold to extrude the workpiece along the circumferential rolling type of the workpiece, meanwhile, the ejection plate is controlled to move upwards, the ejector rod and the lower mold gasket are further driven to move upwards, at the moment, the workpiece deforms under the common acting force of the upper mold and the lower mold gasket, and when the workpiece is deformed to be full of the workpiece placing area, cold forging is finished.

The utility model provides a cold pendulum of end links mould of forging by rolling, it is rational in infrastructure, compare directly to the cold forging of pressure formula, can reach the cold forging effect in the past with less pressure, improved material utilization, reduced manufacturing cost, realized the accurate control of size.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and embodiments:

fig. 1 is a schematic structural view of an end ring cold rotary forging die provided by the present invention;

fig. 2 is a schematic view of the working state of the end ring cold rolling die provided by the present invention.

Detailed Description

The invention will be further explained below with reference to specific embodiments, without limiting the invention.

As shown in fig. 1 and fig. 2, the utility model provides an end ring cold pendulum rolling die, include: the die holder 1, the die core 2, the lower die gasket 3, the lower die 4, the lower die pressing ring 5, the upper die 6, the upper die pressing ring 7, the ejector plate 8 and the ejector rods 9, wherein the die core 2, the lower die 4 and the lower die pressing ring 5 are fixedly arranged above the die holder 1 from inside to outside in sequence, the lower die gasket 3 is arranged between the die core 2 and the lower die 4 to form a workpiece placing area, the lower bottom surface of the upper die 6 is an annular inclined surface, preferably, the inclination angle of the lower bottom surface of the upper die 6 is 1-5 degrees, the upper die 6 is fixedly connected with a swing head driving mechanism through the upper die pressing ring 7, when the upper die 6 is driven by the swing head driving mechanism to swing the head, the lower bottom surface of the upper die 6 can extrude the upper top surface of the workpiece 10 in a rolling manner along the circumferential direction of the workpiece, the ejector rods 9 are a plurality of (preferably 6) and are uniformly arranged along the circumferential direction of the ejector plate 8, the lower parts of the ejector rods 9 are fixedly connected with, the ejector rod 9 can push the lower die gasket 3 to extrude the workpiece 10 upwards under the pushing of the ejector plate 8.

The process of cold forging the workpiece by the end ring cold swing forging die is as follows: the workpiece is placed in a workpiece placing area formed by the mold core, the lower mold gasket and the lower mold, then the upper mold falls down, when the upper mold falls to be abutted against the mold core, the rotary swing head of the upper mold is controlled to enable the lower bottom surface of the inclined upper mold to extrude the workpiece along the circumferential rolling type of the workpiece, meanwhile, the ejection plate is controlled to move upwards, the ejector rod and the lower mold gasket are further driven to move upwards, at the moment, the workpiece deforms under the common acting force of the upper mold and the lower mold gasket, and when the workpiece is deformed to be full of the workpiece placing area, cold forging is finished.

As the improvement of the technical scheme, a circular groove is arranged at the center position above the die holder 1, and a convex rib matched with the circular groove is arranged at the lower part of the inner side of the die core 2, so that the die core 2 and the die holder 1 can be coaxially arranged.

As an improvement of the technical scheme, the mold core 2, the lower mold 4 and the lower mold pressing ring 5 are fixedly connected with the mold base 1 through screws.

As the improvement of the technical scheme, the lower part of the ejector rod 9 penetrates through the ejector plate 8 and then is locked through a bolt.

As the improvement of the technical scheme, the upper die 6, the die holder 1 and the ejector plate 8 are coaxially arranged.

The embodiments of the present invention are written in a progressive manner, emphasizing the differences of the various embodiments, and similar parts can be referred to each other.

The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. End ring cold pendulum rolls mould, its characterized in that includes: the die holder (1), the die core (2), the lower die gasket (3), the lower die (4), the lower die pressing ring (5), the upper die (6), the upper die pressing ring (7), the ejector plate (8) and the ejector rods (9), wherein the die core (2), the lower die (4) and the lower die pressing ring (5) are sequentially and fixedly arranged above the die holder (1) from inside to outside, the lower die gasket (3) is arranged between the die core (2) and the lower die (4) and forms a workpiece placing area, the lower bottom surface of the upper die (6) is an annular inclined surface, the upper die (6) is fixedly connected with the swinging head driving mechanism through the upper die pressing ring (7), when the upper die (6) rotates to swing head under the driving of the swinging head driving mechanism, the lower bottom surface of the upper die (6) can extrude the upper top surface of a workpiece (10) in a rolling mode along the circumferential direction of the workpiece, the ejector rods (9) are multiple and are uniformly arranged along the circumferential direction of the ejector plate (8), and the lower portions of the, the upper part of the ejector rod (9) penetrates through the die holder (1), the upper top surface of the ejector rod is connected with the bottom surface of the lower die gasket (3), and the ejector rod (9) can push the lower die gasket (3) to extrude a workpiece (10) upwards under the pushing of the ejector plate (8).

2. The end ring cold rolling die of claim 1, wherein: the inclination angle of the lower bottom surface of the upper die (6) is 1-5 degrees.

3. The end ring cold rolling die of claim 1, wherein: a circular groove is formed in the center of the upper portion of the die holder (1), a convex edge matched with the circular groove is formed in the lower portion of the inner side of the die core (2), and the die core (2) and the die holder (1) can be coaxially placed.

4. The end ring cold rolling die of claim 1, wherein: the mold core (2), the lower mold (4) and the lower mold pressing ring (5) are fixedly connected with the mold base (1) through screws.

5. The end ring cold rolling die of claim 1, wherein: the lower part of the ejector rod (9) penetrates through the ejector plate (8) and then is locked by a bolt.

6. The end ring cold rolling die of claim 1, wherein: the number of the top rods (9) is 6.

7. The end ring cold rolling die of claim 1, wherein: the upper die (6), the die holder (1) and the ejector plate (8) are coaxially arranged.