Forging and pressing die for producing non-magnetic steel retaining ring

Abstract

The utility model relates to the field of forging equipment, in particular to a forging die for producing a non-magnetic steel retaining ring, which comprises a lower die and an upper die, the lower die comprises a base, a box body is arranged at the upper end of the base, a through hole is arranged on the upper end face of the box body, the base is provided with a support column extending to the upper side of the through hole, and a retainer ring is vertically and slidably arranged on the outer side of the support column. The upper die comprises a mounting seat, a pressing plate is arranged at the lower end of the mounting seat, and the lower end of the pressing plate is connected with a pressure column. The utility model has the advantage that the forging stock is convenient to take out.

Description

Technical Field

[0001] The utility model relates to the field of forging equipment, in particular to a forging die for producing non-magnetic steel retaining rings. Background Art

[0002] The steel retaining ring is an important mechanical component, mainly used to protect the coils at both ends of the generator rotor and prevent them from flying out under the action of centrifugal force. The material and performance of the steel retaining ring are crucial for ensuring the safe operation of the unit. It needs to have high enough strength, good plasticity index, uniform mechanical properties and minimum residual stress. Generally, non-magnetic steel is used as the raw material for manufacturing the steel retaining ring. In the production of the steel retaining ring, it is necessary to open a hole in the center of the cylindrical forging blank by using a forging die, so as to process it into a ring shape later. The existing forging die is not convenient for taking out the forging blank after processing. Therefore, it is particularly necessary to develop a forging die for producing non-magnetic steel retaining rings that is convenient for taking out the forging blank. Summary of the Invention

[0003] The purpose of the utility model is to provide a forging die for producing non-magnetic steel retaining rings, which has the advantage of being convenient for taking out the forging blank.

[0004] The technical scheme adopted is as follows:

[0005] A forging die for producing non-magnetic steel retaining rings includes a lower die and an upper die. The lower die includes a base, a box body is arranged on the upper end of the base, a through hole is opened on the upper end surface of the box body, a support column extending above the through hole is arranged on the base, a retaining ring is vertically slidably arranged on the outer side of the support column, and a lifting mechanism connected to the retaining ring is arranged in the base. The upper die includes a mounting seat, a pressing plate is arranged at the lower end of the mounting seat, and a pressure column is connected to the lower end of the pressing plate.

[0006] Preferably, the lifting mechanism includes a plurality of vertically extending hydraulic expansion rods, and the upper and lower ends of the hydraulic expansion rods are respectively connected to the retaining ring and the base.

[0007] Preferably, a plurality of mounting plates are arranged on the side surface of the base, and fixing holes are opened on the mounting plates.

[0008] Preferably, a plurality of vertically extending limiting strips are arranged on the outer side of the retaining ring, and a plurality of notches corresponding to the limiting strips are arranged on the side surface of the through hole.

[0009] Preferably, heat dissipation grooves are opened on both side surfaces of the box body.

[0010] Compared with the prior art, the beneficial effects are as follows:

[0011] 1. The forging blank to be punched is placed inside the retaining ring. The external hydraulic press is controlled to drive the pressing plate and the pressure column to descend. The pressure column penetrates through the center of the forging blank to form a through hole. After punching is completed, the pressure column rises, and the lifting mechanism controls the retaining ring to descend, facilitating the removal of the punched forging blank. It has the advantage of being convenient for removing the forging blank.

[0012] 2. Heat dissipation grooves are provided on both sides of the box body in the present utility model, facilitating heat dissipation inside the box body and preventing the temperature from becoming too high due to heat accumulation inside the box body during the working process. Description of the Drawings

[0013] Figure 1 is a three-dimensional structural schematic diagram of a forging die for producing non-magnetic steel retaining rings of the present utility model.

[0014] Figure 2 is an internal structural schematic diagram of a forging die for producing non-magnetic steel retaining rings of the present utility model.

[0015] Figure 3 is a schematic diagram of the working state when the pressure column of a forging die for producing non-magnetic steel retaining rings of the present utility model presses down.

[0016] In the figure: 1, base; 2, box body; 3, mounting plate; 4, fixing hole; 6, support column; 7, retaining ring; 8, limiting strip; 9, hydraulic telescopic rod; 10, mounting seat; 11, pressing plate; 12, pressure column; 13, heat dissipation groove. Specific Embodiments

[0017] The following further describes the present utility model in conjunction with specific embodiments, as Figures 1 to 3 shown:

[0018] Embodiment 1: A forging die for producing non-magnetic steel retaining rings, including a lower die and an upper die. The lower die and the upper die correspond to each other vertically. The lower die is fixedly installed, and the upper die is installed on an external hydraulic press. The lower die includes a base 1. A box body 2 is provided at the upper end of the base 1. A through hole is provided on the upper end surface of the box body 2. The base 1 is provided with a support column 6 extending above the through hole. The upper end surface of the support column 6 is higher than the upper end surface of the box body 2.

[0019] A retaining ring 7 is slidably arranged vertically on the outside of the support column 6. The retaining ring 7 is slidably arranged on the outside of the support column 6. A lifting mechanism connected to the retaining ring 7 is arranged inside the base 1. The lifting mechanism controls the retaining ring 7 to rise or fall. The upper die includes a mounting seat 10. A pressing plate 11 is provided at the lower end of the mounting seat 10. A pressure column 12 is connected to the lower end of the pressing plate 11. The forging blank to be punched is placed inside the retaining ring 7. The external hydraulic press is controlled to drive the pressing plate 11 and the pressure column 12 to descend. The pressure column 12 penetrates through the center of the forging blank to form a through hole. After punching is completed, the pressure column 12 rises, and the lifting mechanism controls the retaining ring 7 to descend, facilitating the removal of the punched forging blank.

[0020] Example 2: A forging die for producing a non-magnetic steel retaining ring, comprising a lower die and an upper die, which are correspondingly arranged up and down. The lower die is fixedly installed, and the upper die is installed on an external hydraulic press. The lower die includes a base 1, a box body 2 is arranged at the upper end of the base 1, a plurality of mounting plates 3 are arranged on the side surface of the base 1, fixing holes 4 are opened on the mounting plates 3, a through hole is opened on the upper end surface of the box body 2, the base 1 is provided with a support column 6 extending above the through hole, and the upper end surface of the support column 6 is higher than the upper end surface of the box body 2.

[0021] A retaining ring 7 is vertically slidably arranged on the outside of the support column 6. The retaining ring 7 is slidably arranged on the outside of the support column 6. A plurality of vertically extending limiting strips 8 are arranged on the outside of the retaining ring 7. A plurality of notches corresponding to the limiting strips 8 are arranged on the side surface of the through hole. The limiting strips 8 are slidably connected with the corresponding notches. A lifting mechanism connected to the retaining ring 7 is arranged in the base 1. The lifting mechanism includes a plurality of vertically extending hydraulic telescopic rods 9. The upper and lower ends of the hydraulic telescopic rods 9 are respectively connected with the retaining ring 7 and the base 1.

[0022] The lifting mechanism controls the retaining ring 7 to rise or fall. The upper die includes a mounting seat 10. A pressing plate 11 is arranged at the lower end of the mounting seat 10. A pressure column 12 is connected to the lower end of the pressing plate 11. The external hydraulic press controls the pressure column 12 and the pressing plate 11 to move up and down. Heat dissipation grooves 13 are opened on both side surfaces of the box body 2. The heat dissipation grooves 13 facilitate heat dissipation inside the box body 2 and prevent the temperature inside the box body 2 from being too high due to heat accumulation during the working process.

[0023] The specific working process is as follows: Place the forging blank to be punched into the retaining ring 7 by using a lifting device. Control the external hydraulic press to drive the pressing plate 11 and the pressure column 12 to descend, and use the pressure column 12 to penetrate the center of the forging blank to form a through hole. After punching is completed, the external hydraulic press controls the pressure column 12 to rise, and the lifting mechanism controls the retaining ring 7 to descend, so as to facilitate the removal of the punched forging blank.

[0024] The above embodiments are only the preferred embodiments of the present invention, and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art based on the present invention belong to the scope of protection required by the present invention.

Claims

1. A forging die for producing non-magnetic steel retaining rings, characterized in that: It includes a lower die and an upper die. The lower die includes a base (1). A box body (2) is arranged at the upper end of the base (1). A through hole is opened on the upper end surface of the box body (2). The base (1) is provided with a support column (6) extending above the through hole. A retaining ring (7) is vertically slidably arranged on the outer side of the support column (6). A lifting mechanism connected to the retaining ring (7) is arranged in the base (1). The upper die includes a mounting seat (10). A pressing plate (11) is arranged at the lower end of the mounting seat (10). A pressure column (12) is connected to the lower end of the pressing plate (11).

2. The forging die for producing non-magnetic steel retaining rings according to claim 1, characterized in that: The lifting mechanism includes a plurality of vertically extending hydraulic telescopic rods (9). The upper and lower ends of the hydraulic telescopic rods (9) are respectively connected to the retaining ring (7) and the base (1).

3. The forging die for producing non-magnetic steel retaining rings according to claim 1, characterized in that: A plurality of mounting plates (3) are arranged on the side surface of the base (1). Fixing holes (4) are opened on the mounting plates (3).

4. The forging die for producing non-magnetic steel retaining rings according to claim 1, characterized in that: A plurality of vertically extending limiting strips (8) are arranged on the outer side of the retaining ring (7). A plurality of notches corresponding to the limiting strips (8) are arranged on the side surface of the through hole.

5. The forging die for producing non-magnetic steel retaining rings according to claim 1, characterized in that: Heat dissipation grooves (13) are opened on both side surfaces of the box body (2).

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