CN209794675U

CN209794675U - Die positioning hydraulic structure of isostatic pressing forming machine

Info

Publication number: CN209794675U
Application number: CN201920441421.6U
Authority: CN
Inventors: 陈梅
Original assignee: Hefei Hanting New Material Technology Co Ltd
Current assignee: Hefei Hanting New Material Technology Co Ltd
Priority date: 2019-04-03
Filing date: 2019-04-03
Publication date: 2019-12-17
Anticipated expiration: 2029-04-03

Abstract

The utility model discloses a mould location hydraulic structure of isostatic pressing make-up machine, including external fixation jar, support and support material seat, the support passes through the fix with screw in the side of external fixation jar, the up end fixed mounting of external fixation jar has the enhancement apron, the intermediate position of strengthening the apron has seted up first gas pocket. The utility model discloses a mould location hydraulic structure of isostatic pressing make-up machine, transfer the most pressure of inner cylinder to strengthen on the step, reduce the bearing capacity of No. two high strength nuts, prevent that it from appearing not hard up; a microwave pulse measurement method is adopted to detect whether materials exist in the die main body or not and whether materials need to be added or not, so that safety accidents caused by empty materials and hydraulic pressure are avoided; through extruding the upper locating sleeve and the lower locating sleeve, the inner secondary sleeve is fixed in the sealing sleeve, so that the situation that the inner secondary sleeve and the sealing sleeve slide relatively in the hydraulic process is prevented, the material static pressure forming effect is improved, the material static pressure forming device is suitable for different working conditions, and a better use prospect is brought.

Description

Die positioning hydraulic structure of isostatic pressing forming machine

Technical Field

The utility model relates to a mould location hydraulic structure of isostatic pressing make-up machine.

Background

Isostatic pressing is that a sample to be pressed is placed in a high-pressure container, the sample is uniformly pressurized from all directions by utilizing the incompressible property and the uniform pressure transmission property of a liquid medium, when the liquid medium is injected into the pressure container through a pressure pump, the pressure intensity of the liquid medium is invariable and uniformly transmitted to all directions according to the fluid mechanics principle, and the pressure of powder in the high-pressure container is uniform and consistent in all directions, and the method for forming the lean powder into a compact blank by the method is called as isostatic pressing.

The mold placing mechanism (patent application No. CN 201820955333.3) of the prior art for an isostatic pressing machine comprises an inner high-pressure hydraulic cylinder, an outer high-strength fixed cylinder, a material supporting seat for placing a mold and a linear motion module for driving the material supporting seat to move up and down, wherein the two ends of the outer high-strength fixed cylinder along the axial direction are respectively arranged as a first end and a second end, the first end is provided with a first high-strength bolt, the second end is provided with a second high-strength bolt, the inner high-pressure hydraulic cylinder is arranged between the first high-strength bolt and the second high-strength bolt, a shaft hole for the mold to pass through is axially arranged on the second high-strength bolt, an internal thread is arranged in the shaft hole, a screw-in bolt matched with the internal thread and a driving mechanism for driving the screw-in bolt to rotate are arranged on the material supporting seat, a mould is placed on the screw-in bolt, a sealing die sleeve for preventing oil leakage is arranged between the inner wall of the inner high-pressure hydraulic cylinder and the outer wall of the die; the utility model has the advantages of convenient taking and placing of the mould, good forming effect, and high production efficiency; but have certain drawback and the problem in the aspect of the use, lack the inside gas exhaust structure of guide to influence the shaping effect of material, the pressure-bearing of lower nut is big, appears becoming flexible the condition easily, can be because lack the material in the mould, by hydraulic pressure cause the incident, seal cover and interior secondary cover take place relative slip easily when the atress, influence material static pressure shaping effect, for this reason, we provide a mould location hydraulic structure of isostatic compaction machine.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a mould location hydraulic structure of isostatic pressing make-up machine can effectively solve the problem among the background art.

in order to achieve the above purpose, the utility model adopts the following technical scheme:

a die positioning hydraulic structure of an isostatic pressing forming machine comprises an external fixing cylinder, a support and a material supporting seat, wherein the support is fixed on the side face of the external fixing cylinder through screws, a reinforcing cover plate is fixedly mounted on the upper end face of the external fixing cylinder, a first air hole is formed in the middle of the reinforcing cover plate, the material supporting seat is movably arranged right below the external fixing cylinder, a motor is erected at the lower end of the material supporting seat, a precession bolt is movably mounted at the upper end of the material supporting seat, a connecting column is fixedly arranged at the upper end of the precession bolt, and a die main body is placed on the connecting column;

the inside fixed mounting of external fixation jar has interior pneumatic cylinder, the upper end internal surface of external fixation jar is provided with the high strength nut No. one that is used for fixed interior pneumatic cylinder, the second gas pocket has been seted up to the inside intermediate position department of high strength nut No. one, material detection sensor has been placed in the second gas pocket, the up end fixed mounting of interior pneumatic cylinder has the upper cover plate, the third gas pocket has been seted up to the inside intermediate position department of upper cover plate, the lower terminal surface fixed mounting of interior pneumatic cylinder has lower apron, the lower extreme internal surface of external fixation jar is provided with the high strength nut No. two that is used for fixed interior pneumatic cylinder and is located the lower extreme of apron down, the outer lane that is close to No. two high strength nuts on the inner wall of external fixation jar is provided with the enhancement step that is used for placing interior.

Preferably, the die main body is movably arranged inside the inner hydraulic cylinder, a sealing sleeve is sleeved on the outer side of the die main body, and an inner secondary sleeve is further arranged between the sealing sleeve and the die main body.

preferably, the upper end and the lower end of the sealing sleeve are respectively provided with an upper locating sleeve and a lower locating sleeve through extrusion, and the secondary sleeve is fixed in the sealing sleeve through the upper locating sleeve and the lower locating sleeve.

Preferably, a sliding seat is arranged on the side face of the material supporting seat and can move on a sliding rail to drive the material supporting seat to lift up and down, and an output shaft is arranged at the upper end of the motor and penetrates through the inside of the material supporting seat to be connected with a screw bolt.

Preferably, the precession bolt is fixed through apparent screw thread and No. two high strength nuts, the size of spliced pole and the opening size looks adaptation of lower apron.

Preferably, the first air hole, the second air hole and the third air hole are communicated, and a lead is arranged on the material detection sensor and extends out through the first air hole.

Compared with the prior art, the utility model discloses following beneficial effect has: the die positioning hydraulic structure of the isostatic pressing forming machine is used for improving the protection and pressure resistance of the outer cylinder and preventing hydraulic oil from being sprayed out by arranging the reinforcing cover plate; by arranging the reinforcing step, most of pressure of the inner cylinder is transferred to the reinforcing step, so that the bearing capacity of the second high-strength nut is reduced, and the second high-strength nut is prevented from loosening, so that the positioning effect of the die is influenced; through the three groups of air holes which are communicated with each other, the air in the material is guided to be discharged outwards, and the product quality is improved; by arranging the material detection sensor, whether materials exist in the die body or not and whether materials need to be added or not are detected by adopting a microwave pulse measuring method, so that safety accidents caused by empty material and hydraulic pressure are avoided; the inner secondary sleeve is fixed in the sealing sleeve by arranging the upper positioning sleeve and the lower positioning sleeve and extruding the upper positioning sleeve and the lower positioning sleeve, so that the condition that the inner secondary sleeve and the sealing sleeve slide relatively in a hydraulic process is prevented, and the static pressure forming effect of the material is improved; whole mould location hydraulic pressure simple structure, convenient operation has had more exquisite design on original machine structure's basis, and the effect of use is better for traditional mode.

Drawings

Fig. 1 is a schematic view of the overall structure of a die positioning hydraulic structure of an isostatic pressing machine according to the present invention;

Fig. 2 is a cross-sectional view of a die positioning hydraulic structure of the isostatic pressing machine of the present invention;

Fig. 3 is the structure diagram of the sealing sleeve of the die positioning hydraulic structure of the isostatic pressing machine of the utility model.

In the figure: 1. an outer fixed cylinder; 2. a support; 3. reinforcing the cover plate; 4. a first air hole; 5. a material supporting seat; 6. a motor; 7. screwing in the bolt; 8. connecting columns; 9. a mold body; 10. an inner hydraulic cylinder; 11. a first high strength nut; 12. a second air hole; 13. a material detection sensor; 14. an upper cover plate; 15. a third air hole; 16. a lower cover plate; 17. a second high-strength nut; 18. reinforcing the step; 19. sealing sleeves; 20. secondary sheathing; 21. mounting a positioning sleeve; 22. and a lower positioning sleeve.

Detailed Description

in order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

As shown in fig. 1-3, a die positioning hydraulic structure of an isostatic pressing machine comprises an external fixed cylinder 1, a bracket 2 and a material supporting seat 5, wherein the bracket 2 is fixed on the side surface of the external fixed cylinder 1 through screws and used for mounting the external fixed cylinder 1 on equipment, the upper end surface of the external fixed cylinder 1 is fixedly provided with a reinforcing cover plate 3, the middle position of the reinforcing cover plate 3 is provided with a first air hole 4, the material supporting seat 5 is movably arranged under the external fixed cylinder 1, the lower end of the material supporting seat 5 is provided with a motor 6, the upper end of the material supporting seat 5 is movably provided with a precession bolt 7, the upper end of the precession bolt 7 is fixedly provided with a connecting column 8, and a die main body 9 is arranged on the connecting column 8;

An inner hydraulic cylinder 10 is fixedly arranged inside an outer fixing cylinder 1, a first high-strength nut 11 for fixing the inner hydraulic cylinder 10 is arranged on the inner surface of the upper end of the outer fixing cylinder 1, a second air hole 12 is formed in the middle position inside the first high-strength nut 11, a material detection sensor 13 is arranged in the second air hole 12, an upper cover plate 14 is fixedly arranged on the upper end face of the inner hydraulic cylinder 10, a third air hole 15 is formed in the middle position inside the upper cover plate 14, a lower cover plate 16 is fixedly arranged on the lower end face of the inner hydraulic cylinder 10, a second high-strength nut 17 for fixing the inner hydraulic cylinder 10 is arranged on the inner surface of the lower end of the outer fixing cylinder 1 and positioned at the lower end of the lower cover plate 16, and a reinforcing step 18 for placing the inner hydraulic cylinder 10 is arranged on the inner wall of the outer fixing cylinder 1 and close;

the die main body 9 is movably arranged in the inner hydraulic cylinder 10, a sealing sleeve 19 is sleeved on the outer side of the die main body 9, and an inner secondary sleeve 20 is further arranged between the sealing sleeve 19 and the die main body 9; the upper end and the lower end of the sealing sleeve 19 are respectively provided with an upper positioning sleeve 21 and a lower positioning sleeve 22 through extrusion, and the secondary sleeve 20 is fixed in the sealing sleeve 19 through the upper positioning sleeve 21 and the lower positioning sleeve 22; a sliding seat is arranged on the side surface of the material supporting seat 5 and can move on a sliding rail to drive the material supporting seat 5 to lift up and down, an output shaft is arranged at the upper end of the motor 6 and penetrates through the interior of the material supporting seat 5 to be connected with a precession bolt 7; the screw-in bolt 7 is fixed with a second high-strength nut 17 through threads on the outer surface, and the size of the connecting column 8 is matched with the size of an opening of the lower cover plate 16; the first air hole 4, the second air hole 12 and the third air hole 15 are communicated, a lead is arranged on the material detection sensor 13 and extends out through the first air hole 4, the position of the material is detected by using microwave, and the distance is measured and calculated through echo.

It should be noted that, the utility model relates to a mould location hydraulic structure of isostatic pressing make-up machine, when using, the outside cylinder starts, the slide moves on the slide rail, drive and hold in the palm the material seat 5 and rise, mould main part 9 enters into interior pneumatic cylinder 10, spliced pole 8 seals the opening of lower cover plate 16, then restart motor 6, drive precession bolt 7 through the output shaft and rotate, screw into No. two high strength nut 17, accomplish the location to mould main part 9, be provided with enhancement step 18 on the inner wall of external fixation jar 1, be used for placing interior pneumatic cylinder 10, most pressure transfer of interior jar is to enhancement step 18, reduce the holding capacity of No. two high strength nut 17, first gas pocket 4, second gas pocket 12 and third gas pocket 15 communicate simultaneously, the gas in the guide mould main part 9 flows and discharges from third gas pocket 15, second gas pocket 12, first gas pocket 4 in proper order, the material detection sensor 13 is further placed in the second air hole 12, whether materials exist in the die main body 9 or not is detected by adopting a microwave pulse measuring method, whether materials need to be fed or not, huge pressure can be generated on the sealing sleeve 19 and the inner secondary sleeve 20 when liquid in the inner hydraulic cylinder 10 is pressurized, deformation of the sealing sleeve 19 and the inner secondary sleeve 20 is enabled to occur, relative sliding cannot occur when the sealing sleeve 19 and the inner secondary sleeve 20 are stressed, after the inner secondary sleeve 20 is placed in the sealing sleeve 19, the upper positioning sleeve 21 and the lower positioning sleeve 22 are respectively extruded to enter the upper end and the lower end of the sealing sleeve 19 by utilizing stamping equipment, the effect of fixing the inner secondary sleeve 20 is achieved, and the method is practical.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a mould location hydraulic structure of isostatic compaction machine, includes external fixation jar (1), support (2) and holds in the palm material seat (5), its characterized in that: the die is characterized in that the support (2) is fixed on the side face of the external fixing cylinder (1) through a screw, a reinforcing cover plate (3) is fixedly installed on the upper end face of the external fixing cylinder (1), a first air hole (4) is formed in the middle of the reinforcing cover plate (3), the material supporting seat (5) is movably arranged right below the external fixing cylinder (1), a motor (6) is erected at the lower end of the material supporting seat (5), a precession bolt (7) is movably installed at the upper end of the material supporting seat (5), a connecting column (8) is fixedly arranged at the upper end of the precession bolt (7), and a die main body (9) is placed on the connecting column (8);

the utility model discloses a pneumatic cylinder (10) in the inside fixed mounting of external fixation jar (1), the upper end internal surface of external fixation jar (1) is provided with a high strength nut (11) that is used for fixed interior pneumatic cylinder (10), second gas pocket (12) have been seted up to the inside intermediate position department of a high strength nut (11), material detection sensor (13) have been placed in second gas pocket (12), the up end fixed mounting of interior pneumatic cylinder (10) has upper cover plate (14), third gas pocket (15) have been seted up to the inside intermediate position department of upper cover plate (14), the lower terminal surface fixed mounting of interior pneumatic cylinder (10) has lower apron (16), the lower extreme internal surface of external fixation jar (1) and the lower extreme that is located lower apron (16) are provided with No. two high strength nuts (17) that are used for fixed interior pneumatic cylinder (10), the outer lane that is close to No. two high strength nuts (17) on the inner wall of external fixation jar (1) is provided with and is used for placing interior liquid A reinforcement step (18) of the cylinder (10).

2. The die positioning hydraulic structure of an isostatic press according to claim 1, wherein: the die is characterized in that the die main body (9) is movably arranged inside the inner hydraulic cylinder (10), a sealing sleeve (19) is sleeved on the outer side of the die main body (9), and an inner secondary sleeve (20) is further arranged between the sealing sleeve (19) and the die main body (9).

3. The die positioning hydraulic structure of an isostatic press, as claimed in claim 1 or 2, wherein: the upper end and the lower end of the sealing sleeve (19) are respectively provided with an upper locating sleeve (21) and a lower locating sleeve (22) through extrusion, and the secondary sleeve (20) is fixed in the sealing sleeve (19) through the upper locating sleeve (21) and the lower locating sleeve (22).

4. The die positioning hydraulic structure of an isostatic press according to claim 1, wherein: a sliding seat is arranged on the side face of the material supporting seat (5) and can move on a sliding rail to drive the material supporting seat (5) to lift up and down, an output shaft is arranged at the upper end of the motor (6) and penetrates through the inside of the material supporting seat (5) to be connected with a precession bolt (7).

5. The die positioning hydraulic structure of an isostatic press according to claim 1, wherein: the screw-in bolt (7) is fixed with a second high-strength nut (17) through an apparent thread, and the size of the connecting column (8) is matched with the size of an opening of the lower cover plate (16).

6. The die positioning hydraulic structure of an isostatic press according to claim 1, wherein: the first air hole (4), the second air hole (12) and the third air hole (15) are communicated, and a lead is arranged on the material detection sensor (13) and extends out through the first air hole (4).