CN217095665U

CN217095665U - Tungsten steel powder metallurgy precision pressing die

Info

Publication number: CN217095665U
Application number: CN202220882123.2U
Authority: CN
Inventors: 冯明秀; 税秀明
Original assignee: Chengdu Hongweirui Cemented Carbide Co ltd
Current assignee: Chengdu Hongweirui Cemented Carbide Co ltd
Priority date: 2022-04-14
Filing date: 2022-04-14
Publication date: 2022-08-02
Anticipated expiration: 2032-04-14

Abstract

The utility model relates to a powder metallurgy technical field just discloses a tungsten steel powder metallurgy precision pressing mould, including the supporting seat, the supporting seat top is fixed with first cylinder, and first cylinder movable end is fixed with the punching press first support, installs the punching press head on the punching press first support, and the supporting seat middle part is fixed with the mounting panel, and the die block is installed at the mounting panel center, and the supporting seat top is fixed with the second cylinder, and second cylinder movable end is fixed with the connecting seat. This tungsten steel powder metallurgy precision pressing mould, through central buffer spring and one-level buffer spring, be convenient for play the cushioning effect when the suppression of punching press head, cooperation second grade buffer spring is convenient for improve buffer structure's bulk strength, through damping spring, is convenient for adjust adjusting nut control damping spring's the degree of tightening up, and then the intensity that control punching press head support pushed down to the functional relatively poor problem of current pressing mould buffer structure has been solved.

Description

Tungsten steel powder metallurgy precision pressing die

Technical Field

The utility model relates to a powder metallurgy technical field specifically is a tungsten steel powder metallurgy precision pressing mould.

Background

Powder metallurgy is an industrial technology for preparing metal powder or preparing metal materials, composite materials and various products by taking metal powder (or a mixture of metal powder and non-metal powder) as a raw material and forming and sintering the metal powder, and the powder metallurgy technology has a series of advantages of remarkable energy conservation, material conservation, excellent performance, high product precision, good stability and the like, is very suitable for mass production, and is very suitable for mass production.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a tungsten steel powder metallurgy precision pressing mould has solved the functional relatively poor problem of current pressing mould buffer structure.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: a tungsten steel powder metallurgy precision pressing die comprises a supporting seat, wherein a first air cylinder is fixed at the top end of the supporting seat, a stamping head support is fixed at the movable end of the first air cylinder, a stamping head is installed on the stamping head support, a mounting plate is fixed at the middle part of the supporting seat, a bottom die is installed at the center of the mounting plate, a second air cylinder is fixed at the top end of the supporting seat, a connecting seat is fixed at the movable end of the second air cylinder, a fixed clamping seat is inserted in the center of the connecting seat, a push post is clamped at the top of the fixed clamping seat and is inserted in the bottom end of the bottom die, an electric push rod is fixed on the mounting plate, a leveling scraper is fixed at the movable end of the electric push rod, a set of guide support columns are fixed on two sides of the mounting plate, the guide support columns penetrate through the outer side of the stamping head support, four sets of limiting columns are uniformly fixed at the bottom of the fixed clamping seat, the limiting clamp comprises a limiting column, a fixing clamping seat and a connecting seat, and is characterized in that a first-stage buffer spring is sleeved on the surface of the limiting column, a central buffer spring is sleeved between the center of the bottom end of the fixing clamping seat and the connecting seat, four groups of limiting kits are uniformly fixed at the top of the connecting seat, the limiting column is inserted into the limiting kits, a second-stage buffer spring is installed inside the limiting kits, and the top end of the second-stage buffer spring is fixed to the bottom of the limiting column.

Preferably, the mounting panel and the smooth scraper blade sliding connection, the spout that matches with smooth scraper blade bottom is seted up at the mounting panel top.

Preferably, a positioning plate is fixed between the top ends of the two groups of guide support columns and slides on the top end of the stamping head support.

Preferably, the bottom end of the guide pillar is in threaded connection with an adjusting nut, and a damping spring is arranged between the top of the adjusting nut and the bottom of the stamping head support.

Preferably, the shock-absorbing spring is sleeved at the bottom end of the guide pillar.

Preferably, the bottom end of the limiting column is fixed with a limiting block, and a limiting groove matched with the limiting block is formed in the limiting sleeve.

Preferably, the bottom die is inserted into the mounting plate, and a second bolt is screwed between the bottom die and the mounting plate.

Preferably, the top of the bottom die is provided with a smooth arc-shaped surface.

Preferably, the inner side of the leveling scraper is provided with a circular cavity, and the diameter of the circular cavity is larger than that of the bottom die.

Preferably, the stamping head support is clamped with the stamping head, and a first bolt is screwed at the joint of the stamping head support and the stamping head.

(III) advantageous effects

Compared with the prior art, the utility model provides a tungsten steel powder metallurgy precision pressing mould possesses following beneficial effect:

1. this tungsten steel powder metallurgy precision pressing mould, through central buffer spring and one-level buffer spring, be convenient for play the cushioning effect when the suppression of punching press head, cooperation second grade buffer spring is convenient for improve buffer structure's bulk strength, through damping spring, is convenient for adjust adjusting nut control damping spring's the degree of tightening up, and then the intensity that control punching press head support pushed down to the functional relatively poor problem of current pressing mould buffer structure has been solved.

2. This tungsten steel powder metallurgy precision pressing mould, through mounting panel and level scraper blade sliding connection, the spout that matches with level scraper blade bottom is seted up at the mounting panel top, is convenient for avoid leveling the scraper blade skew when moving, is fixed with the locating plate between the top through two sets of guide pillar, is convenient for keep the stability of guide pillar, slides on punching press head support top through the locating plate, is convenient for ensure the normal operation of punching press head support, prevents the skew to appear.

3. This tungsten steel powder metallurgy precision pressing mould, bottom mounting through spacing post has the spacing piece, spacing external member is inside to be offered the spacing groove that matches with the stopper, be convenient for make the stopper on the spacing post slide in the spacing groove, avoid spacing post skew, top through the die block is provided with glossy arcwall face, be convenient for guide tungsten steel powder get into among the die block, inboard through leveling the scraper blade is provided with circular cavity, and circular cavity's diameter is greater than the diameter of die block, be convenient for push tungsten steel powder among the die block.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged schematic view of the structure of the present invention;

fig. 3 is a schematic diagram of the local structure explosion of the present invention.

In the figure: 1. a supporting seat; 2. a first cylinder; 3. a ram support; 4. punching a head; 5. a first bolt; 6. a guide pillar; 7. positioning a plate; 8. adjusting the screw cap; 9. a damping spring; 10. bottom die; 11. a second bolt; 12. mounting a plate; 13. an electric push rod; 14. leveling a scraper plate; 15. pushing the column; 16. fixing the card holder; 17. a limiting column; 18. a primary buffer spring; 19. a secondary buffer spring; 20. a limiting sleeve member; 21. a central buffer spring; 22. a connecting seat; 23. a second cylinder.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a tungsten steel powder metallurgy precision pressing die comprises a supporting seat 1, wherein a first air cylinder 2 is fixed at the top end of the supporting seat 1, a stamping head support 3 is fixed at the movable end of the first air cylinder 2, a stamping head 4 is installed on the stamping head support 3, an installation plate 12 is fixed at the middle part of the supporting seat 1, a bottom die 10 is installed at the center of the installation plate 12, a second air cylinder 23 is fixed at the top end of the supporting seat 1, a connecting seat 22 is fixed at the movable end of the second air cylinder 23, a fixed clamping seat 16 is inserted in the center of the connecting seat 22, a pushing column 15 is clamped at the top of the fixed clamping seat 16, the pushing column 15 is inserted in the bottom end of the bottom die 10, an electric push rod 13 is fixed on the installation plate 12, a leveling scraper 14 is fixed at the movable end of the electric push rod 13, a group of guide support columns 6 is fixed on both sides of the installation plate 12, the guide support columns 6 pass through the outer side of the stamping head support 3, four groups of limiting columns 17 are uniformly fixed at the bottom of the fixed clamping seat 16, the surface of the limiting column 17 is sleeved with a first-level buffer spring 18, a central buffer spring 21 is sleeved between the center of the bottom end of the fixed clamping seat 16 and the connecting seat 22, four groups of limiting sleeve members 20 are uniformly fixed at the top of the connecting seat 22, the limiting column 17 is connected with the limiting sleeve members 20 in an inserting mode, a second-level buffer spring 19 is installed inside the limiting sleeve members 20, and the top end of the second-level buffer spring 19 is fixed with the bottom of the limiting column 17.

Specifically, in order to facilitate limiting the position of the leveling scraper 14, the mounting plate 12 is slidably connected to the leveling scraper 14, and a sliding groove matched with the bottom end of the leveling scraper 14 is formed in the top of the mounting plate 12, so that the leveling scraper 14 is prevented from shifting during operation.

Specifically, in order to keep the stability of the guide pillars 6, a positioning plate 7 is fixed between the top ends of the two groups of guide pillars 6, and in order to make the ram supports 3 operate normally, the positioning plate 7 slides on the top ends of the ram supports 3.

Specifically, for the convenience of adjusting damping spring 9's elasticity, the bottom threaded connection of guide pillar 6 has adjusting nut 8, is provided with damping spring 9 between adjusting nut 8's the top and the bottom of punching press head support 3, through rotating adjusting nut 8 extrusion damping spring 9, and then control damping spring 9's shrink.

Specifically, in order to facilitate the buffer of the punch head support 3, the damping spring 9 is sleeved at the bottom end of the guide pillar 6, and when the first cylinder 2 drives the punch head 4 on the punch head support 3 to press, the damping spring 9 is matched to play a role in buffering.

Specifically, in order to facilitate limiting the position of the limiting column 17, the bottom end of the limiting column 17 is fixed with a limiting block, a limiting groove matched with the limiting block is formed in the limiting sleeve 20, the limiting block on the limiting column 17 slides in the limiting groove, and the limiting column 17 is prevented from being deviated.

Specifically, in order to facilitate replacement of bottom molds 10 with different sizes, the bottom mold 10 is inserted into the mounting plate 12, and a second bolt 11 is screwed between the bottom mold 10 and the mounting plate 12.

Specifically, in order to facilitate guiding the tungsten steel powder into the bottom mold 10, a smooth arc-shaped surface is disposed on the top of the bottom mold 10.

Specifically, in order to push the tungsten steel powder into the bottom die 10, a circular cavity is provided inside the leveling scraper 14, and the diameter of the circular cavity is larger than that of the bottom die 10.

Specifically, for the convenience of changing the punching head 4 of matching size, punching head support 3 and punching head 4 joint, and the junction spiro union of punching head support 3 and punching head 4 has first bolt 5.

The working principle is as follows: when the device is used, tungsten steel powder is filled in a bottom die 10, a leveling scraper 14 is pushed by an electric push rod 13 to move on a mounting plate 12, the tungsten steel powder in the bottom die 10 is scraped, a first air cylinder 2 is started to drive a stamping head 4 on a stamping head support 3 to downwards extrude the tungsten steel powder in the bottom die 10, the stamping head support 3 is prevented from deviating by matching with a guide support 6, during pressing, a central buffer spring 21 and a first-level buffer spring 18 are extruded by pressure generated by the stamping head 4, a second-level buffer spring 19 is extruded by limiting columns 17 around a fixed clamping seat 16 to shrink, excessive pressure during pressing is further dispersed, the tightening degree of a damping spring 9 is controlled by controlling the position of an adjusting nut 8 at the bottom end of the guide support 6, the pressing strength of the stamping head support 3 is further controlled, after pressing is completed, the stamping head 4 resets, a second air cylinder 23 pushes a fixed clamping seat 16 on a connecting seat 22 to lift, and the push column 15 pushes out the parts formed in the bottom die 10, when parts with different sizes need to be pressed, the first bolt 5 and the second bolt 11 are disassembled, so that the punching head 4 and the bottom die 10 can be respectively disassembled and replaced, and the push column 15 clamped on the fixed clamping seat 16 can be disassembled and replaced.

In conclusion, the tungsten steel powder metallurgy precision pressing die has the advantages that the central buffer spring 21 and the first-level buffer spring 18 are used for buffering the stamping head 4 during pressing, the second-level buffer spring 19 is used for improving the overall strength of the buffer structure, the damping spring 9 is used for adjusting the adjusting screw cap 8 to control the tightening degree of the damping spring 9 and further control the pressing strength of the stamping head bracket 3, so that the problem of poor functionality of the buffer structure of the existing pressing die is solved, the mounting plate 12 is in sliding connection with the leveling scraper 14, the top of the mounting plate 12 is provided with the sliding groove matched with the bottom end of the leveling scraper 14, so that the leveling scraper 14 is prevented from deviating during operation, the positioning plate 7 is fixed between the top ends of the two groups of guide pillars 6, so that the guide pillars 6 are kept stable, and the positioning plate 7 slides on the top end of the stamping head bracket 3, normal operation convenient to guarantee punching press first support 3, prevent the skew from appearing, bottom mounting through spacing post 17 has the spacing piece, spacing external member 20 is inside to be seted up the spacing groove that matches with the stopper, be convenient for make the stopper on the spacing post 17 slide in the spacing groove, avoid spacing post 17 skew, top through die block 10 is provided with glossy arcwall face, be convenient for guide tungsten steel powder get into among the die block 10, inboard through leveling scraper 14 is provided with circular cavity, and circular cavity's diameter is greater than die block 10's diameter, be convenient for push tungsten steel powder among the die block 10.

The electrical components in the document are electrically connected with an external master controller and 220V mains supply, and the master controller can be a computer or other conventional known devices for playing a role in control.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A tungsten steel powder metallurgy precision pressing die comprises a supporting seat (1), a first cylinder (2) is fixed at the top end of the supporting seat (1), a stamping head bracket (3) is fixed at the movable end of the first cylinder (2), a stamping head (4) is arranged on the stamping head bracket (3), a mounting plate (12) is fixed in the middle of the supporting seat (1), a bottom die (10) is installed in the center of the mounting plate (12), a second cylinder (23) is fixed at the top end of the supporting seat (1), a connecting seat (22) is fixed at the movable end of the second cylinder (23), a fixed clamping seat (16) is inserted in the center of the connecting seat (22), a pushing column (15) is clamped at the top of the fixed clamping seat (16), push away post (15) and die block (10) bottom and peg graft, punching press head (4) are pegged graft on top with die block (10), its characterized in that: an electric push rod (13) is fixed on the mounting plate (12), a leveling scraper (14) is fixed at the movable end of the electric push rod (13), a group of guide pillars (6) are fixed on both sides of the mounting plate (12), the guide pillars (6) penetrate through the outer side of the stamping head bracket (3), four groups of limit columns (17) are uniformly fixed at the bottom of the fixed clamping seat (16), a first-level buffer spring (18) is sleeved on the surface of the limiting column (17), a central buffer spring (21) is sleeved between the center of the bottom end of the fixed clamping seat (16) and the connecting seat (22), four groups of limit kits (20) are uniformly fixed on the top of the connecting seat (22), the limiting column (17) is inserted with a limiting sleeve (20), a secondary buffer spring (19) is arranged in the limiting sleeve (20), the top end of the secondary buffer spring (19) is fixed with the bottom of the limiting column (17).

2. The precision pressing die for tungsten steel powder metallurgy according to claim 1, characterized in that: the mounting plate (12) is connected with the leveling scraper (14) in a sliding mode, and the top of the mounting plate (12) is provided with a sliding groove matched with the bottom end of the leveling scraper (14).

3. The precision pressing die for tungsten steel powder metallurgy according to claim 1, characterized in that: and a positioning plate (7) is fixed between the top ends of the two groups of guide support columns (6), and the positioning plate (7) slides on the top end of the stamping head bracket (3).

4. The precision pressing die for tungsten steel powder metallurgy according to claim 1, characterized in that: the bottom end of the guide pillar (6) is in threaded connection with an adjusting nut (8), and a damping spring (9) is arranged between the top of the adjusting nut (8) and the bottom of the stamping head support (3).

5. The precision pressing die for tungsten steel powder metallurgy according to claim 4, wherein: the damping spring (9) is sleeved at the bottom end of the guide support post (6).

6. The precision pressing die for tungsten steel powder metallurgy according to claim 1, characterized in that: the bottom end of the limiting column (17) is fixed with a limiting block, and a limiting groove matched with the limiting block is formed in the limiting sleeve (20).

7. The precision pressing die for tungsten steel powder metallurgy according to claim 1, characterized in that: the bottom die (10) is connected with the mounting plate (12) in an inserting mode, and a second bolt (11) is connected between the bottom die (10) and the mounting plate (12) in a threaded mode.

8. The precision pressing die for tungsten steel powder metallurgy according to claim 1, characterized in that: the top of the bottom die (10) is provided with a smooth arc-shaped surface.

9. The precision pressing die for tungsten steel powder metallurgy according to claim 1, characterized in that: the inner side of the leveling scraper (14) is provided with a circular cavity, and the diameter of the circular cavity is larger than that of the bottom die (10).

10. The precision pressing die for tungsten steel powder metallurgy according to claim 1, characterized in that: the stamping head support (3) is connected with the stamping head (4) in a clamped mode, and a first bolt (5) is connected to the joint of the stamping head support (3) and the stamping head (4) in a threaded mode.