CN216226197U

CN216226197U - Shaft warm forging cold extrusion die

Info

Publication number: CN216226197U
Application number: CN202122795184.3U
Authority: CN
Inventors: 俞海燕
Original assignee: Yuling Machinery Co ltd
Current assignee: Yuling Machinery Co ltd
Priority date: 2021-11-16
Filing date: 2021-11-16
Publication date: 2022-04-08
Anticipated expiration: 2031-11-16

Abstract

The utility model belongs to the technical field of dies, in particular to a cold extrusion die for warm forging of a shaft, which comprises a base, wherein four corners at the top end of the base are fixedly provided with support columns, a bottom plate is arranged above the base, a top plate is arranged above the bottom plate, the interiors of the four corners of the bottom plate and the top plate are respectively connected with the support columns in a sliding manner, the top end of the bottom plate is provided with a lower die, the bottom end of the top plate is provided with an upper die, the bottom end of the bottom plate is fixedly provided with a screw rod, the interior of the upper end of the base is rotatably connected with a threaded sleeve, the bottom end of the threaded sleeve is fixedly provided with a first bevel gear, the interior of the base is provided with a motor, an output shaft of the motor is provided with a second bevel gear, the middle parts of the outer walls at two ends of the bottom plate are rotatably connected with a first long rod and a second long rod, the problem that compared with the common cold extrusion die, the pressure born by the cold extrusion die in work is much higher, deviation can occur between an upper die plate and a lower die plate after a punch is driven by the upper die plate for a long time, the accuracy of the plate is affected.

Description

Shaft warm forging cold extrusion die

Technical Field

The utility model belongs to the technical field of dies, and particularly relates to a warm forging and cold extruding die for a shaft.

Background

Cold extrusion is an important component of precision plastic volume forming technology. The cold extrusion die is a die for placing a metal blank in a cold state, and metal is forced to be extruded out of a die cavity under the action of strong pressure and a certain speed in the die cavity, so that an extrusion piece with a required shape, size and certain mechanical property is obtained. Obviously, the cold extrusion processing controls the metal flow by a die, the part is formed by a large amount of transfer of metal volume, and compared with a common cold stamping die, the cold extrusion die is much higher in pressure during working, so that the requirements on strength, rigidity, wear resistance and the like are higher, the existing cold extrusion die can generate deviation between an upper die plate and a lower die plate after an upper die plate drives a punch to fall for a long time, the production of the plate can be influenced, and the precision of the plate is influenced; in view of the problems exposed during the use of the current mold, there is a need for improvement and optimization of the mold structure.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems in the prior art, the utility model provides the shaft warm forging cold extrusion die which has the characteristics of enhancing the stability of the die during die pressing and improving the precision during die pressing of plate parts.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides an axle warm forging cold extrusion die, includes the base, four angles on the top of base are fixed with the support column, the top of base is equipped with the bottom plate, the top of bottom plate is equipped with the roof, four angles inside of bottom plate and roof all respectively with support column sliding connection, the bed die is installed on the top of bottom plate, the mould is installed to the bottom of roof, the bottom mounting of bottom plate has the lead screw, the upper end internal rotation of base is connected with the thread bush, the bottom mounting of thread bush has first bevel gear, the internally mounted of base has the motor, second bevel gear is installed to the output shaft of motor.

As a preferred technical scheme of the shaft warm forging and cold extruding die, the middle parts of the outer walls of the two ends of the bottom plate are rotatably connected with a first long rod and a second long rod, the two ends of the first long rod and the second long rod are respectively rotatably connected with a first short rod and a second short rod, the other end of the first short rod is rotatably connected with the outer wall of the base, and the other end of the second short rod is rotatably connected with the outer wall of the top plate.

As a preferred technical scheme of the shaft warm forging cold extrusion die, the inner wall of the thread sleeve is in threaded connection with the screw rod, and the lower end of the screw rod penetrates from the inside to the lower side of the first bevel gear.

As a preferred technical scheme of the shaft warm forging cold extrusion die, the first bevel gear and the second bevel gear are in meshed connection.

According to the preferable technical scheme of the shaft warm forging and cold extruding die, the first long rod and the second long rod are identical in structure, and the first short rod and the second short rod are identical in structure.

As a preferable technical scheme of the shaft warm forging cold extrusion die, the inner diameter of the first bevel gear is larger than the outer diameter of the screw rod.

Compared with the prior art, the utility model has the beneficial effects that: the motor drives the second bevel gear to rotate through the output shaft, the second bevel gear drives the first bevel gear to rotate through meshing connection with the first bevel gear, the first bevel gear drives the screw rod through the threaded sleeve, and the screw rod drives the bottom plate to move downwards along the support column; when the bottom plate downstream, drive the roof along support column downstream through first stock and second stock cooperation second quarter butt, the last mould and the bottom plate top bed die of final roof bottom carry out the pressfitting, realize the moulding-die.

When the bottom plate moves, through the first quarter butt of first stock and the cooperation of second stock, drive the roof along support column downstream through first stock and the cooperation of second stock second quarter butt simultaneously, stability when increasing bottom plate and roof motion improves the accuracy of plate when moulding-die.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

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

FIG. 2 is a schematic side view of the cold extrusion die of the present invention;

FIG. 3 is a schematic sectional view of the upper end of the base according to the present invention;

in the figure: 1. a base; 2. a support pillar; 3. a base plate; 4. a top plate; 5. a lower die; 6. an upper die; 7. a screw rod; 8. a threaded sleeve; 9. a first bevel gear; 10. a motor; 11. a second bevel gear; 12. a first long rod; 13. a second long rod; 14. a first short bar; 15. a second short bar.

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.

Examples

Referring to fig. 1-3, the present invention provides the following technical solutions: a shaft warm forging cold extrusion die comprises a base 1, four corners at the top end of the base 1 are fixed with support columns 2, a bottom plate 3 is arranged above the base 1, a top plate 4 is arranged above the bottom plate 3, the insides of the four corners of the bottom plate 3 and the top plate 4 are respectively connected with the support columns 2 in a sliding manner, a lower die 5 is arranged at the top end of the bottom plate 3, an upper die 6 is arranged at the bottom end of the top plate 4, a screw rod 7 is fixed at the bottom end of the bottom plate 3, a threaded sleeve 8 is rotatably connected inside the upper end of the base 1, a first bevel gear 9 is fixed at the bottom end of the threaded sleeve 8, a motor 10 is arranged inside the base 1, a second bevel gear 11 is arranged on an output shaft of the motor 10, in the embodiment, the motor 10 drives the first bevel gear 9 to rotate through the second bevel gear 11, the first bevel gear 9 drives the screw rod 7 through the threaded sleeve 8, the screw rod 7 drives the bottom plate 3 to move along the support columns 2, and meanwhile, the bottom plate 3 is matched with a first short rod 14 through a first long rod 12 and a second long rod 13, the stability of the bottom plate 3 during movement is improved, and the accuracy of the plate during die pressing is improved.

Specifically, the both ends outer wall middle part of bottom plate 3 is rotated and is connected with first stock 12 and second stock 13, the both ends of first stock 12 and second stock 13 all rotate respectively and are connected with first quarter butt 14 and second quarter butt 15, the other end of first quarter butt 14 rotates with base 1's outer wall to be connected, the other end of second quarter butt 15 rotates with the outer wall of roof 4 to be connected, when 3 movements of bottom plate in this embodiment, cooperate second quarter butt 15 through first stock 12 and second stock 13 and drive roof 4 along the motion of support column 2, thereby stability when increasing roof 4 movements.

Specifically, the inner wall of the threaded sleeve 8 is in threaded connection with the screw rod 7, the lower end of the screw rod 7 penetrates from the inside of the first bevel gear 9 to the lower side, and the threaded sleeve 8 is in threaded connection with the screw rod 7 in the embodiment, so that the screw rod 7 can be driven to rotate and move up and down when the threaded sleeve 8 rotates.

Specifically, the first bevel gear 9 and the second bevel gear 11 are in meshed connection, in this embodiment, the motor 10 drives the second bevel gear 11 to rotate through the output shaft, and the second bevel gear 11 drives the first bevel gear 9 to rotate through meshed connection with the first bevel gear 9.

Specifically, the first long rod 12 and the second long rod 13 have the same structure, and the first short rod 14 and the second short rod 15 have the same structure, so that the first long rod 12 and the second long rod 13 are kept horizontal when the first long rod 12 and the second long rod 13 drive the bottom plate 3 and the top plate 4 to move through the first short rod 14 and the second short rod 15 according to the principle of a parallelogram mechanism in the embodiment.

Specifically, the inner diameter of the first bevel gear 9 is larger than the outer diameter of the screw rod 7, so that the first bevel gear 9 is prevented from interfering with the screw rod 7 when the screw rod 7 moves.

The working principle and the using process of the utility model are as follows: firstly, a motor 10 drives a second bevel gear 11 to rotate through an output shaft, the second bevel gear 11 drives a first bevel gear 9 to rotate through meshing connection with the first bevel gear 9, the first bevel gear 9 drives a screw rod 7 through a threaded sleeve 8, the screw rod 7 drives a bottom plate 3 to move downwards along a support column 2, and meanwhile, the bottom plate 3 is matched with a first short rod 14 through a first long rod 12 and a second long rod 13, so that the stability of the bottom plate 3 during movement is improved; when bottom plate 3 downstream, drive roof 4 along support column 2 downstream through first stock 12 and the cooperation second quarter butt 15 of second stock 13, stability when also increasing roof 4 motion, the last mould 6 and the 3 top bed dies 5 of bottom plate of final roof 4 bottom carry out the pressfitting, accomplish the moulding-die.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an axle warm forging cold extrusion die, includes base (1), its characterized in that: the top of base (1) is fixed with support column (2) at four angles, the top of base (1) is equipped with bottom plate (3), the top of bottom plate (3) is equipped with roof (4), four angles of bottom plate (3) and roof (4) are inside all respectively with support column (2) sliding connection, bed die (5) are installed on the top of bottom plate (3), mould (6) are installed to the bottom of roof (4), the bottom mounting of bottom plate (3) has lead screw (7), the upper end internal rotation of base (1) is connected with thread bush (8), the bottom mounting of thread bush (8) has first bevel gear (9), the internally mounted of base (1) has motor (10), second bevel gear (11) are installed to the output shaft of motor (10).

2. The warm-forging and cold-extruding die for the shaft according to claim 1, wherein: the utility model discloses a base plate, including bottom plate (3), the both ends outer wall middle part of bottom plate (3) is rotated and is connected with first stock (12) and second stock (13), the both ends of first stock (12) and second stock (13) all rotate respectively and are connected with first quarter butt (14) and second quarter butt (15), the other end of first quarter butt (14) rotates with the outer wall of base (1) to be connected, the other end of second quarter butt (15) rotates with the outer wall of roof (4) to be connected.

3. The warm-forging and cold-extruding die for the shaft according to claim 1, wherein: the inner wall of the threaded sleeve (8) is in threaded connection with the screw rod (7), and the lower end of the screw rod (7) penetrates from the inside of the first bevel gear (9) to the lower side.

4. The warm-forging and cold-extruding die for the shaft according to claim 1, wherein: the first bevel gear (9) and the second bevel gear (11) are in meshed connection.

5. The warm-forging and cold-extruding die for the shaft according to claim 2, wherein: the first long rod (12) and the second long rod (13) are identical in structure, and the first short rod (14) and the second short rod (15) are identical in structure.

6. The warm-forging and cold-extruding die for the shaft according to claim 1, wherein: the inner diameter of the first bevel gear (9) is larger than the outer diameter of the screw rod (7).