CN210966808U

CN210966808U - Plug cap hot forging die

Info

Publication number: CN210966808U
Application number: CN201921106413.2U
Authority: CN
Inventors: 董明; 龙镜淇
Original assignee: Dalian Xingang Hydraulic Pipe Fitting Co ltd
Current assignee: Dalian Xingang Hydraulic Pipe Fitting Co ltd
Priority date: 2019-07-16
Filing date: 2019-07-16
Publication date: 2020-07-10
Anticipated expiration: 2029-07-16

Abstract

The utility model discloses a plug cap hot forging die, in particular to the die processing field, the lower die comprises a die holder, a female die is embedded in the die holder, a cavity is arranged in the female die, a material returning sleeve is arranged in the cavity, a punch is arranged in the material returning sleeve, a workpiece is arranged at the bottom of the lower die, a material section is arranged at the bottom of the workpiece, and a male die is arranged at the top of the lower die; the cooling water inlet pipe is embedded in one side wall of the male die, the cooling water outlet pipe is arranged on the other side of the male die, a top column is arranged inside the male die, a top rod block is arranged at the top end of the top column, a threaded rod is arranged at the bottom end of the top column, a base plate is sleeved outside the threaded rod, and a base is arranged at the bottom end of the threaded rod. The utility model discloses adopt heat-resisting material to make die and terrace die, set up cooling water input tube and cooling water output tube in the both sides of terrace die, make die and terrace die roughly keep a invariable temperature through the cooling method of circulating water, improved the life of mould.

Description

Plug cap hot forging die

Technical Field

The invention relates to the field of die processing, in particular to a plug cap hot forging die.

Background

The forging process performed above the metal recrystallization temperature is called hot forging. The hot forging is also called hot die forging, the flow of deformed metal is severe during forging, and the contact time between a forging piece and a die is longer. Therefore, the die material is required to have high thermal stability, high-temperature strength and hardness, impact toughness, thermal fatigue resistance and wear resistance and to be easy to process. The lighter duty hot forging dies may be made of low alloy steel. The hot forging die usually works in a high-temperature environment, and the temperature of the male die and the female die is unstable and fluctuates greatly, so that the service life of the die is seriously influenced.

Disclosure of Invention

In order to overcome the above defects in the prior art, embodiments of the present invention provide a plug cap hot forging die, in which a cavity is disposed in a female die, and a material returning sleeve is disposed in the cavity, so that cooling water flowing in a cooling water output pipe and a cooling water output pipe can flow through the outside of the cavity, the female die and the male die are made of a heat-resistant material, a cooling water input pipe and a cooling water output pipe are disposed on both sides of the male die, the female die and the male die are substantially kept at a constant temperature by a cooling method of circulating water, and the service life of the die is prolonged.

In order to achieve the purpose, the invention provides the following technical scheme: a plug cap hot forging die comprises a lower die, wherein the lower die comprises a concave die holder, a concave die is embedded in the concave die holder, a cavity is formed in the concave die, a material returning sleeve is arranged in the cavity, a punch is arranged in the material returning sleeve, a workpiece is arranged at the bottom of the lower die, a material section is arranged at the bottom of the workpiece, and a convex die is arranged at the top of the lower die;

a cooling water input pipe is embedded in one side wall of the male die, a cooling water output pipe is arranged on the other side of the male die, a top post is arranged inside the male die, a top rod block is arranged at the top end of the top post, a threaded rod is arranged at the bottom end of the top post, a base plate is sleeved outside the threaded rod, and a base is arranged at the bottom end of the threaded rod;

the improved punch die is characterized in that a connecting piece is arranged at the top of the punch die, a movable cavity is formed in the connecting piece, an upper die is arranged at the top of the connecting piece, a plurality of first screws penetrate through the inner portion of the upper die, a die shank is arranged at the top of the upper die, and a knockout rod penetrates through the inner portion of the die shank.

In a preferred embodiment, the bottom of the die holder is provided with a second screw, the second screw penetrates through the die holder and extends to the bottom of the male die, and the die holder is detachably connected with the male die through the second screw.

In a preferred embodiment, the cavity is arranged in the middle of the female die and extends to the bottom of the female die, the top end of the material returning sleeve extends to the bottom of the male die, the outer wall of the bottom end of the material returning sleeve is attached to the inner wall of the cavity, the workpiece is arranged at the bottom of the cavity, and the material returning sleeve is arranged right above the workpiece.

In a preferred embodiment, the top end of the punch is fixedly connected with the bottom of the connecting piece, the inner wall of the material returning sleeve is attached to the outer wall of the punch, the bottom of the base is attached to the top of the female die, and the inner wall of the base is attached to the outer wall of the top end of the material returning sleeve.

In a preferred embodiment, the ejector rod block is arranged inside the movable cavity, the top end of the ejector column penetrates through the connecting piece and extends into the movable cavity, and the top of the ejector rod block is connected with the bottom end of the knockout rod.

In a preferred embodiment, the die shank is fixedly connected with a punch press slide block, the upper die is detachably connected with the connecting piece through a second screw, the bottom of the lower die is further provided with a calcining system, and the material section is located inside the calcining system.

The invention has the technical effects and advantages that:

1. the material section which is burnt to be red is pressed into a cavity formed in the female die by downward movement of the die shank, and after the material section is cooled, the punch press slide block is continuously moved upwards to enable the knockout pin to generate a downward acting force on the ejector rod block, so that the ejector rod block is moved downwards, the ejection column, the base plate and the material returning sleeve are moved downwards for a distance along with the downward movement of the ejector rod block, a workpiece in the cavity in the female die is ejected to finish material returning, the operation is simple and convenient, and the processing efficiency of a product is improved;

2. the cavity is arranged in the female die, the material returning sleeve is arranged in the cavity, so that cooling water flowing in the cooling water output pipe and the cooling water output pipe can flow through the outside of the cavity, the female die and the male die are made of heat-resistant materials, the cooling water input pipe and the cooling water output pipe are arranged on two sides of the male die, the female die and the male die are approximately kept at a constant temperature through a cooling mode of circulating water, and the service life of the die is prolonged.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention in operation.

FIG. 2 is a schematic diagram of a plug cap hot forging die structure of the invention.

Fig. 3 is a schematic diagram of a detailed structure a in fig. 1 according to the present invention.

Fig. 4 is a schematic diagram of a detailed structure at B in fig. 1 according to the present invention.

Fig. 5 is a schematic view of the structure of the top pillar of the present invention.

The reference signs are: the device comprises a lower die 1, a concave die base 2, a concave die 3, a cavity 4, a material returning sleeve 5, a punch 6, a workpiece 7, a material segment 8, a convex die 9, a cooling water input pipe 10, a cooling water output pipe 11, a top column 12, a top rod block 13, a threaded rod 14, a backing plate 15, a base 16, a connecting piece 17, a movable cavity 18, an upper die 19, a first screw 20, a die shank 21, a material beating rod 22 and a second screw 23.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

The plug cap hot forging die shown in fig. 1-4 comprises a lower die 1, wherein the lower die 1 comprises a concave die holder 2, a concave die 3 is embedded in the concave die holder 2, a cavity 4 is formed in the concave die 3, a material returning sleeve 5 is arranged in the cavity 4, a punch 6 is arranged in the material returning sleeve 5, a workpiece 7 is arranged at the bottom of the lower die 1, a material section 8 is arranged at the bottom of the workpiece 7, and a convex die 9 is arranged at the top of the lower die 1;

a cooling water input pipe 10 is embedded in one side wall of the male die 9, a cooling water output pipe 11 is arranged on the other side of the male die 9, a top column 12 is arranged inside the male die 9, a top rod block 13 is arranged at the top end of the top column 12, a threaded rod 14 is arranged at the bottom end of the top column, a base plate 15 is sleeved outside the threaded rod 14, and a base 16 is arranged at the bottom end of the threaded rod 14;

the top of the male die 9 is provided with a connecting piece 17, a movable cavity 18 is formed in the connecting piece 17, the top of the connecting piece 17 is provided with an upper die 19, a plurality of first screws 20 penetrate through the inside of the upper die 19, the top of the upper die 19 is provided with a die shank 21, and a material beating rod 22 penetrates through the inside of the die shank 21.

The bottom of the die holder 2 is provided with a second screw 23, the second screw 23 penetrates through the die holder 2 and extends to the bottom of the male die 9, the die holder 2 is detachably connected with the male die 9 through the second screw 23, the die cavity 4 is arranged in the middle of the female die 3 and extends to the bottom of the female die 3, the top end of the material returning sleeve 5 extends to the bottom of the male die 9, the outer wall of the bottom end of the material returning sleeve 5 is attached to the inner wall of the die cavity 4, the workpiece 7 is arranged at the bottom of the die cavity 4, and the material returning sleeve 5 is arranged right above the workpiece 7;

the top end of the punch 6 is fixedly connected with the bottom of a connecting piece 17, the inner wall of the material returning sleeve 5 is attached to the outer wall of the punch 6, the bottom of the base 16 is attached to the top of the female die 3, the inner wall of the base 16 is attached to the outer wall of the top end of the material returning sleeve 5, the ejector rod block 13 is arranged inside the movable cavity 18, the top end of the ejection column 12 penetrates through the connecting piece 17 and extends into the movable cavity 18, and the top of the ejector rod block 13 is connected with the bottom end of a knockout rod 22;

the die handle 21 is fixedly connected with a sliding block of the punch press, the upper die 19 is detachably connected with the connecting piece 17 through a second screw 23, the bottom of the lower die 1 is further provided with a calcining system, the material section 8 is located inside the calcining system, and the male die 9 and the groove are made of heat-resistant materials.

According to the embodiment, the material section 8 which is burnt red is pressed into the cavity 4 formed in the female die 3 by downwards moving the die handle 21, after the material section 8 is cooled, the punch press slide block is continuously upwards moved to enable the knockout pin 22 to generate a downward acting force on the ejector pin block 13, so that the ejector pin block 13 downwards moves, the ejection column 12, the backing plate 15 and the material returning sleeve 5 downwards move for a certain distance along with the downwards movement of the ejector pin block 13, and the workpiece 7 in the cavity 4 in the female die 3 is ejected to complete material returning, so that the operation is simple and convenient, and the processing efficiency of the product is improved.

Example 2

On the basis of the above embodiment, further, the die shank 21 is fixedly connected with the punch press slide block, the external cooling water pipe is connected with the cooling water input pipe 10 on the side wall of the male die 9, the recycling pipe system is connected with the cooling water output pipe 11 on the other side wall of the male die 9, the connection position of the pipes is sealed by using a sealing tape, the work of the punch press slide block is controlled by using a press machine to drive the punch press slide block to move up and down, when the punch press slide block moves down and drives the die shank 21 to move down together, the material section 8 which is arranged at the bottom of the lower die 1 and burned in the calcining system is pressed into the cavity 4 arranged in the female die 3, in the process, the material returning sleeve 5 gradually moves up along with the pressing of the material section 8 to form vacuum in the originally occupied space, so that the material section 8 is filled in the whole cavity 4, the cooling water circulation system is started, and the external cooling water is input into the male die 9 from the cooling water, after entering the male die 9, the cooling water enters a cooling water output pipe 11 on the other side wall of the male die 9, in this process, the cooling water flows along the conduit from the outside of the cavity 4 between the male 9 and female 3 dies, absorbing and conducting heat in the material burning section 8 filled in the cavity 4, then discharging the heat out of the male die 9 from the cooling water output pipe 11, controlling the punch slide block to move upwards after the material section 8 is cooled, when the punch press slide moves up to approach the upper fulcrum, the upper part of the material beating rod 22 touches the fixed cross arm of the press machine to stop moving up, at the moment, the punch press slide moves up continuously to enable the material beating rod 22 to generate a downward acting force on the ejector rod block 13, and the ejector rod block 13 moves downwards, so that the ejector column 12, the backing plate 15 and the material returning sleeve 5 move downwards for a certain distance along with the downward movement of the ejector rod block 13, and the workpiece 7 in the cavity 4 in the female die 3 is ejected out to finish material returning.

The working principle of the invention is as follows:

referring to the attached drawings 1-4 of the specification, when a punch press slide block moves downwards, a die shank 21 is driven to move downwards together, a red material section 8 is pressed into a cavity 4 formed in a female die 3, after the material section 8 is cooled, the punch press slide block is used for continuously moving upwards to enable a material beating rod 22 to generate a downward acting force on an ejector rod block 13, the ejector rod block 13 is made to move downwards, an ejection column 12, a base plate 15 and a material returning sleeve 5 move downwards for a distance along with the downward movement of the ejector rod block 13, and a workpiece 7 in the cavity 4 in the female die 3 is ejected to finish material returning;

referring to the attached figures 1-5 of the specification, the female die 3 and the male die 9 are made of heat-resistant materials, the cooling water input pipe 10 and the cooling water output pipe are arranged on two sides of the male die 9, the female die 3 and the male die 9 are approximately kept at a constant temperature through a cooling mode of circulating water, and the service life of the die is prolonged.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the invention, only the structures related to the disclosed embodiments are referred to, other structures can refer to common designs, and the same embodiment and different embodiments of the invention can be combined with each other without conflict;

and finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.

Claims

1. The plug cap hot forging die is characterized by comprising a lower die (1), wherein the lower die (1) comprises a die holder (2), a female die (3) is embedded in the die holder (2), a cavity (4) is formed in the female die (3), a material returning sleeve (5) is arranged in the cavity (4), a punch (6) is arranged in the material returning sleeve (5), a workpiece (7) is arranged at the bottom of the lower die (1), a material section (8) is arranged at the bottom of the workpiece (7), and a male die (9) is arranged at the top of the lower die (1);

a cooling water input pipe (10) is embedded in one side wall of the male die (9), a cooling water output pipe (11) is arranged on the other side of the male die (9), a top column (12) is arranged inside the male die (9), a top rod block (13) is arranged at the top end of the top column (12), a threaded rod (14) is arranged at the bottom end of the top column, a base plate (15) is sleeved outside the threaded rod (14), and a base (16) is arranged at the bottom end of the threaded rod (14);

the top of the male die (9) is provided with a connecting piece (17), a movable cavity (18) is formed in the connecting piece (17), the top of the connecting piece (17) is provided with an upper die (19), a plurality of first screws (20) penetrate through the inside of the upper die (19), the top of the upper die (19) is provided with a die shank (21), and a material beating rod (22) penetrates through the inside of the die shank (21).

2. A plug cap forge hot die according to claim 1, wherein: the bottom of the die holder (2) is provided with a second screw (23), the second screw (23) penetrates through the bottom of the die holder (2) and extends to the bottom of the male die (9), and the die holder (2) is detachably connected with the male die (9) through the second screw (23).

3. A plug cap forge hot die according to claim 1, wherein: die cavity (4) are seted up in the middle part of die (3) and are extended to the bottom of die (3), material returned cover (5) top extends to the bottom of terrace die (9), material returned cover (5) bottom outer wall laminates with die cavity (4) inner wall mutually, work piece (7) set up in the bottom of die cavity (4), material returned cover (5) set up directly over work piece (7).

4. A plug cap forge hot die according to claim 1, wherein: drift (6) top and connector (17) bottom fixed connection, material returned cover (5) inner wall laminates with drift (6) outer wall mutually, base (16) bottom laminates with die (3) top mutually, base (16) inner wall laminates with material returned cover (5) top outer wall mutually.

5. A plug cap forge hot die according to claim 1, wherein: ejector pin piece (13) set up in the inside in activity chamber (18), in connector (17) extend to activity chamber (18) is run through on fore-set (12) top, ejector pin piece (13) top is connected with knockout rod (22) bottom.

6. A plug cap forge hot die according to claim 1, wherein: the die handle (21) is fixedly connected with a sliding block of the punch press, the upper die (19) is detachably connected with the connecting piece (17) through a second screw (23), the bottom of the lower die (1) is further provided with a calcining system, and the material section (8) is located inside the calcining system.