CN219503575U

CN219503575U - Stamping forming die for cylindrical workpiece

Info

Publication number: CN219503575U
Application number: CN202321736821.2U
Authority: CN
Inventors: 肖川; 曾学文; 邓海波; 吴光其; 左启伟
Original assignee: Zhengxi Hydraulic Equipment Manufacturing Co ltd
Current assignee: Zhengxi Hydraulic Equipment Manufacturing Co ltd
Priority date: 2023-07-05
Filing date: 2023-07-05
Publication date: 2023-08-11
Anticipated expiration: 2033-07-05

Abstract

The utility model relates to the technical field of stamping forming die forming, in particular to a stamping forming die for a cylindrical workpiece, which comprises an inner die, an outer die, a die base and a plurality of stamping mechanisms, wherein the outer die is fixed above the die base, the inner die is arranged in the outer die, and the cylindrical workpiece is arranged between the inner die and the outer die; the upper end face of the outer die is provided with the bolt installation block, the four sides of the outer die are symmetrically provided with stamping mechanisms of the same structure respectively, the stamping mechanisms arranged outside the outer die are suitable for stamping forming of cylindrical workpieces, and compared with the traditional stamping technology, the beneficial effect that the workpieces generate larger deformation defects in the plate rolling process is achieved.

Description

Stamping forming die for cylindrical workpiece

Technical Field

The utility model relates to the technical field of stamping forming die forming, in particular to a stamping forming die for a cylindrical workpiece.

Background

The utility model provides a stamping forming die for a cylindrical workpiece, which is mainly composed of an upper die, a lower die and a punch for stamping the cylindrical workpiece, wherein most of stamping modes of the cylindrical workpiece are that the cylindrical workpiece is stamped and formed on the planar die firstly and then rolled into the cylindrical workpiece after stamping and forming, but the forming process method is easy to cause larger deformation of the workpiece in the plate rolling process, and the utility model provides the stamping forming die for the cylindrical workpiece aiming at the technical defects.

Disclosure of Invention

The utility model aims to solve the problems in the prior art and provides a stamping forming die for a cylindrical workpiece.

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

the stamping forming die for the cylindrical workpiece comprises an inner die, an outer die, a die base and a plurality of stamping mechanisms, wherein the outer die is fixed above the die base, the inner die is arranged in the outer die, and the cylindrical workpiece is arranged between the inner die and the outer die; the upper end face of the outer die is provided with a bolt mounting block, and four sides of the outer die are symmetrically provided with stamping mechanisms with the same structure respectively.

Further, each stamping mechanism comprises an oil cylinder, an oil cylinder mounting support column, a pressing plate, a punch and a punch connecting plate; the oil cylinders are respectively arranged on four sides of the outer die through oil cylinder mounting struts.

Further, a cavity space is formed in the middle of the outer die, and the inner die is movably mounted in the cavity space.

Further, an annular separation cavity is formed between the inner die and the outer die, and a cylindrical workpiece is arranged in the annular separation cavity.

Further, a positioning hole is formed in the cylindrical workpiece, and the bolt mounting block is movably connected with the positioning hole through a bolt.

Further, a piston rod of the oil cylinder is connected with the pressing plate.

Further, the pressing plate and the punch connecting plate are fixed through bolts.

Further, a plurality of grooves are formed in the punch connecting plate, and punches are respectively installed in each groove.

Further, the punch is movably contacted with the cylindrical workpiece through the outer die.

Further, a plurality of protruding blocks are symmetrically arranged on the outer side of the circumference of the inner die and used for supporting the inside of the cylindrical workpiece.

Compared with the prior art, the utility model has the advantages that:

the stamping forming die for the cylindrical workpiece is suitable for stamping forming the cylindrical workpiece through the stamping mechanism arranged on the outer side of the die, and has the beneficial effect that the problem of large deformation defect of the workpiece in the process of rolling the plate is solved compared with the traditional stamping technology.

Drawings

FIG. 1 is a schematic view of a press forming die in a three-dimensional structure according to the present utility model;

FIG. 2 is a top view of a press forming die of the present utility model;

FIG. 3 is a transverse cross-sectional view of a press forming die of the present utility model;

FIG. 4 is a diagram showing a sample structure before punching a cylindrical workpiece in accordance with the present utility model;

FIG. 5 is a diagram showing a structure of a sample after punching a cylindrical workpiece according to the present utility model;

in the figure: 1-a die base; 2-outer die; 3-internal mold; 4-a cylindrical workpiece; 5-an oil cylinder; 6-an oil cylinder mounting support column; 7-punching heads; 8-a punch connecting plate; 9-a bolt mounting block; 10-a bolt; 11-pressing plates; 12-bump; 13-positioning holes.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Embodiment one: referring to fig. 1-3, a stamping forming mold for cylindrical workpieces includes an inner mold 3, an outer mold 2, a mold base and a plurality of stamping mechanisms, wherein the outer mold 2 is fixed above the mold base 1, a cavity space is provided in the middle of the outer mold, the inner mold 3 is movably mounted in the cavity space, the inner mold 3 is located in the outer mold 2, an annular separation cavity is formed between the inner mold 3 and the outer mold 2, and the cylindrical workpieces 4 are placed in the annular separation cavity.

Embodiment two: on the basis of the first embodiment, please continue to refer to fig. 1-3 in combination with fig. 4 or fig. 5, a pin mounting block 9 is mounted on the upper end surface of the outer mold 2, a positioning hole 13 is provided on the cylindrical workpiece 4, such that the pin mounting block 9 corresponds to the positioning hole 13 of the cylindrical workpiece 4, and then the pin 10 passes through the pin mounting block 9 and then is fixed with the positioning hole 13 of the cylindrical workpiece 4 for positioning and preventing deviation of the cylindrical workpiece 4 in the punching process.

Embodiment III: on the basis of the second embodiment, please continue to refer to fig. 1 and fig. 2, 4 protruding blocks 12 are symmetrically arranged on the outer side of the circumference of the inner die 3 for supporting the inside of the cylindrical workpiece 4, so that the protruding blocks 12 support the inner wall of the cylindrical workpiece 4, and a positioning and deviation preventing effect is also achieved on the cylindrical workpiece 4 in the process of punching in the second embodiment.

Embodiment four: continuing to refer to fig. 1-2 in combination with fig. 3 on the basis of the first embodiment, four sides of the outer die 2 are symmetrically provided with stamping mechanisms with the same structure, wherein in the embodiment, 4 stamping mechanisms are respectively arranged on the front side, the rear side, the left side and the right side of the outer die 2, and each stamping mechanism comprises an oil cylinder 5, an oil cylinder mounting support column 6, a pressing plate 11, a punch 7 and a punch connecting plate 8; the oil cylinders 5 are respectively installed on four sides of the outer die 2 through oil cylinder installation support posts 6, in the embodiment, the oil cylinder installation support posts 6 of each oil cylinder 5 are provided with 4 columns, and the 4 columns are symmetrically distributed and fixed on each side of the outer die, so that the overall stability of the oil cylinders 5 in the process of stamping the die is ensured.

Fifth embodiment: on the basis of the fourth embodiment, please continue to refer to fig. 1-2 in combination with fig. 3, the piston rod of the oil cylinder 5 is connected with the pressing plate 11, the pressing plate 11 is connected with the punch connecting plate 8, the connecting mode is fixedly connected through bolts, a plurality of grooves are sequentially formed in the punch connecting plate 8 from top to bottom, the number of grooves is 3 in the embodiment, the number of grooves meeting the requirements can be set according to actual conditions, and the punch 7 is installed in each corresponding groove.

Example six: in the embodiment, the number of the punch connecting plates 8 is 4, and 3 punches are correspondingly connected to each punch connecting plate 8 from top to bottom, so that each punch 7 passes through the outer die 2 and is in movable contact with the cylindrical workpiece 4 positioned inside the outer die 2.

Embodiment seven: on the basis of the sixth embodiment, please refer to fig. 1-3 for fig. 4 and 5, when the stamping die works, firstly, the cylindrical workpiece 4 is put into the die, and the pin 10 is inserted into the positioning hole 13 of the cylindrical workpiece 4 after passing through the pin mounting block 9, and then the cylindrical workpiece 4 is fixed; the cylinder 5 pushes the pressing plate 11 to move inwards, so that the punch 7 punches the outer wall of the inner cylindrical workpiece 4, and meanwhile, under the action that 4 lugs 12 are propped against the inner wall of the cylindrical workpiece 4 in the punching process, the components on the cylindrical workpiece 4 are quickly punched and formed.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The utility model provides a stamping forming mould for cylindric work piece, is including centre form (3), external mold (2), mould base (1) and a plurality of stamping mechanism, its characterized in that: the outer die (2) is fixed above the die base (1), the inner die (3) is arranged inside the outer die (2), and a cylindrical workpiece (4) is arranged between the inner die (3) and the outer die (2); the upper end face of the outer die (2) is provided with a bolt mounting block (9), and four sides of the outer die (2) are symmetrically provided with stamping mechanisms with the same structure respectively.

2. A press forming die for cylindrical workpieces according to claim 1, wherein: each stamping mechanism comprises an oil cylinder (5), an oil cylinder mounting support column (6), a pressing plate (11), a punch (7) and a punch connecting plate (8); the oil cylinders (5) are respectively arranged on four side surfaces of the outer die (2) through oil cylinder installation struts (6).

3. A press forming die for cylindrical workpieces according to claim 1, wherein: the middle part of the outer die (2) is provided with a cavity space, and the inner die (3) is movably arranged in the cavity space.

4. A press forming die for cylindrical workpieces according to claim 3, wherein: an annular separation cavity is formed between the inner die (3) and the outer die (2), and a cylindrical workpiece (4) is arranged in the annular separation cavity.

5. A press forming die for cylindrical workpieces according to claim 1, wherein: the cylindrical workpiece (4) is provided with a positioning hole (13), and the bolt mounting block (9) is movably connected with the positioning hole (13) through a bolt (10).

6. A press forming die for cylindrical workpieces according to claim 2, wherein: the piston rod of the oil cylinder (5) is connected with the pressing plate (11).

7. A press forming die for cylindrical workpieces according to claim 2, wherein: the pressing plate (11) and the punch connecting plate (8) are fixed through bolts.

8. A press forming die for cylindrical workpieces according to claim 2, wherein: the punch connecting plate (8) is provided with a plurality of grooves, and each groove is provided with a punch (7).

9. A press forming die for cylindrical workpieces as claimed in claim 6, wherein: the punch (7) penetrates through the outer die (2) to be in movable contact with the cylindrical workpiece (4).

10. A press forming die for cylindrical workpieces as claimed in claim 7, wherein: a plurality of protruding blocks (12) are symmetrically arranged on the outer side of the circumference of the inner die (3) and used for supporting the inside of the cylindrical workpiece (4).