CN-224222741-U - Multistage damping powder metallurgy valve seat gradient pressing die

CN224222741UCN 224222741 UCN224222741 UCN 224222741UCN-224222741-U

Abstract

The utility model discloses a gradient pressing die for a multistage damping powder metallurgy valve seat, which relates to the technical field of manufacturing of powder metallurgy dies and comprises a supporting frame, wherein the inner wall of the supporting frame is connected with a discharging device in a sliding manner, the inner wall of the discharging device is connected with a replacing device in a sliding manner, the replacing device is arranged to replace the discharging device in a sliding manner, and the replacing process is realized by adopting the sliding replacing manner, wherein the limiting plate, the sliding plate, the bolt component and other structural designs are adopted, so that the replacing process can complete the replacement of components only through sliding and buckling operations without complex dismounting tools, the die maintenance and component replacement time is obviously shortened, and the placing frame, the sliding rod and the cross frame are designed, so that the placing frame can slide in an I-shaped frame through the sliding rod, the multi-angle limiting fixation is realized by utilizing the cross frame, the position of the placing frame can be flexibly adjusted, the processing objects with different shapes and sizes are adapted, and the aim of the gradient pressing requirement of the diversified powder metallurgy valve seat is met.

Inventors

HAN JIAWEI
MENG XIANGYANG
TONG ZHAOYONG
ZHAO QILIANG

Assignees

扬州汇峰新材料有限公司

Dates

Publication Date: 20260512
Application Date: 20250530

Claims (6)

1. The multistage damping powder metallurgy valve seat gradient pressing die comprises a supporting frame (1), and is characterized in that: The inner wall of the support frame (1) is slidably connected with a discharging device (2), the inner wall of the discharging device (2) is slidably connected with a replacing device (3), the replacing device (3) is replaced in a sliding mode, and the inner wall of the support frame (1) is fixedly connected with a hydraulic cylinder (4); The discharging device (2) comprises a bidirectional screw rod (20), the outer wall of the bidirectional screw rod (20) is symmetrically and slidingly connected with a I-shaped frame (21) through a dovetail rail, and the inner wall of the I-shaped frame (21) is slidingly connected with the replacing device (3).
2. The gradient pressing die for the multistage damping powder metallurgy valve seat is characterized in that the outer wall of the bidirectional screw rod (20) is rotationally connected with the inner wall of the supporting frame (1), and the top end of the dovetail rail is fixedly connected with the bottom end of the I-shaped frame (21).
3. The gradient pressing die for the multistage damping powder metallurgy valve seat is characterized in that the replacing device (3) comprises a limiting plate (30), the inner wall of the limiting plate (30) is slidably connected with a sliding plate (31) through a dovetail groove, the dovetail groove is formed in the inner wall of the limiting plate (30), the inner wall of the sliding plate (31) is slidably connected with a plug pin assembly (32), and the inner wall of the plug pin assembly (32) is slidably connected with a buckle piece (33).
4. The gradient pressing die for the multistage damping powder metallurgy valve seat is characterized in that the top end of the limiting plate (30) is fixedly connected with the bottom end of the hydraulic cylinder (4), and the outer wall of the plug pin assembly (32) is in contact with the outer wall of the limiting plate (30).
5. The gradient pressing die for the multistage damping powder metallurgy valve seat is characterized in that the outer wall of the buckle piece (33) is connected with a limiting frame (34) in a sliding mode, the outer wall of the buckle piece (33) is in an inclined plane shape, the bottom end of the buckle piece (33) is fixedly connected with a compression spring (35), the top end of the buckle piece (33) is fixedly connected with a pressing rod (36), the bottom end of the limiting frame (34) is fixedly connected with the top end of the limiting plate (30), the bottom end of the litigation compression spring (35) is fixedly connected with a bolt assembly (32), and the outer wall of the pressing rod (36) is connected with the inner wall of the bolt assembly (32) in a sliding mode.
6. The gradient pressing die for the multistage damping powder metallurgy valve seat is characterized in that the replacing device (3) further comprises a placing frame (310), a sliding rod (311) is rotatably connected to the bottom end of the placing frame (310), a cross (312) is fixedly connected to the bottom end of the sliding rod (311), the top end of the placing frame (310) is in contact with the bottom end of the sliding plate (31) through a processing object, and the outer wall of the cross (312) of the sliding rod (311) is in sliding connection with the inner wall of the I-shaped frame (21).

Description

Multistage damping powder metallurgy valve seat gradient pressing die Technical Field The utility model relates to the technical field of powder metallurgy die manufacturing, in particular to a multistage damping powder metallurgy valve seat gradient pressing die. Background In the field of modern industry, the powder metallurgy valve seat is widely applied to key industries such as aerospace, petrochemical industry, automobile manufacturing and the like by virtue of excellent wear resistance, corrosion resistance and good comprehensive mechanical properties. The discharge mechanism of traditional mould is mostly fixed interval design, be difficult to carry out nimble adjustment according to the size and the powder filling demand of different specification disk seats, lead to powder to distribute unevenly, influence the shaping precision of disk seat gradient structure, partial mould adopts bolted connection or complicated nested structure, the change process is loaded down with trivial details, need with the help of professional instrument and consuming time longer, frequent change operation seriously reduced production efficiency, traditional mould's transmission and bearing structure design are unreasonable inadequately, easily appear rocking or the part is not hard up in the suppression in-process, lead to pressure transfer unstable, not only influence the suppression quality of disk seat, still probably shorten mould self life, increase cost of maintenance. Disclosure of utility model (One) solving the technical problems Aiming at the defects of the prior art, the utility model provides a multistage damping powder metallurgy valve seat gradient pressing die, which solves the problems of inaccurate discharging, complicated replacement, unstable structure and poor suitability of the traditional die. (II) technical scheme The technical scheme is that the multistage damping powder metallurgy valve seat gradient pressing die comprises a supporting frame, wherein the inner wall of the supporting frame is connected with a discharging device in a sliding mode, the inner wall of the discharging device is connected with a replacing device in a sliding mode, the inner wall of the supporting frame is fixedly connected with a hydraulic cylinder, the discharging device comprises a bidirectional screw, the outer wall of the bidirectional screw is symmetrically and slidingly connected with an I-shaped frame through a dovetail rail, the inner wall of the I-shaped frame is slidingly connected with the replacing device, and when the bidirectional screw rotates, the two-side I-shaped frames symmetrically slide along the dovetail rail through the cooperation of the bidirectional screw and the I-shaped frame in the discharging device, the discharging interval is accurately adjusted, and the powder discharging requirements of pressing valve seats with different specifications are met. Preferably, the outer wall of the bidirectional screw rod is rotationally connected with the inner wall of the supporting frame, and the top end of the dovetail rail is fixedly connected with the bottom end of the I-shaped frame. Preferably, the replacing device comprises a limiting plate, the inner wall of the limiting plate is slidably connected with a sliding plate through a dovetail groove, the dovetail groove is formed in the inner wall of the limiting plate, the inner wall of the sliding plate is slidably connected with a bolt assembly, the inner wall of the bolt assembly is slidably connected with a buckle piece, the replacing device adopts a sliding replacing mode, and the limiting plate, the sliding plate, the bolt assembly and other structural designs are used for replacing a part without complex dismounting tools, and the replacement of the part can be completed only through sliding and buckling operation, so that the maintenance time of a die and the replacement time of the part are obviously shortened. Preferably, the top of limiting plate and the bottom fixed connection of pneumatic cylinder, the outer wall of bolt subassembly and the outer wall contact of limiting plate, limiting plate and pneumatic cylinder fixed connection provide stable power transmission path for the pressing process. Preferably, the outer wall sliding connection of cramp has spacing frame, and the outer wall of cramp is the inclined plane form, the bottom fixedly connected with compression spring of cramp, the top fixedly connected with of cramp presses the pole, the bottom of spacing frame and the top fixed connection of limiting plate, litigation compression spring's bottom and bolt subassembly fixed connection, press the outer wall and the inner wall sliding connection of bolt subassembly of pole, the cooperation of bolt subassembly and cramp forms reliable spacing fixedly after the part is installed. Preferably, the replacing device further comprises a placing frame, the bottom end of the placing frame is rotationally connected with a sliding rod, the bo