CN117428092A

CN117428092A - Trimming and drawing composite die

Info

Publication number: CN117428092A
Application number: CN202311451297.9A
Authority: CN
Inventors: 段宇航; 吴秀兰
Original assignee: Xiangyang Haorui Mold Co ltd
Current assignee: Xiangyang Haorui Mold Co ltd
Priority date: 2023-10-31
Filing date: 2023-10-31
Publication date: 2024-01-23

Abstract

The invention relates to a die, in particular to a trimming and drawing composite die, which comprises an upper die for extruding a plate and a lower die corresponding to the upper die, wherein a forming part is arranged between the upper die and the lower die and is used for forming the plate; the upper die comprises a lower pressing plate, a groove is formed in the center of the bottom of the lower pressing plate, and a mounting block is fixedly connected to the groove; according to the invention, the upper die and the lower die are combined, so that the drawing operation of the plate is realized, meanwhile, when the plate is drawn, the corresponding cutting assembly can be installed in the cutting positioning groove arranged on the upper die, the cutting requirement can be realized by matching with the drawn material by utilizing the depth of the cutting assembly, and at the moment, the drawing and the cutting are carried out in the same die, so that the accuracy of the plate forming can be ensured as much as possible, the possibility of damage to the formed plate caused by dislocation is avoided, the secondary operation is avoided, and the forming efficiency is improved.

Description

Trimming and drawing composite die

Technical Field

The invention relates to a die, in particular to a trimming and drawing composite die.

Background

The structure of the drawing die is determined by the geometry of the drawing member, the dimensional accuracy, the material, the throughput, and the press used. The stretching die is generally simpler, and the structure of the stretching die is provided with a forward stretching die, a reverse stretching die and a forward and reverse stretching die which are both used according to the stretching direction, and the stretching die can be divided into a single-procedure stretching die, a multi-procedure continuous stretching die and a composite stretching die according to the stretching procedure;

in general, the drawing die is rigidly drawn, i.e. the male die and the female die are respectively arranged on rigid parts, the female die is stationary during drawing, and only the male die is drawn in the stroke of a slide block of the punch press, or vice versa;

after the use, because there is no part of cutting off between mould and the panel, lead to need to pass through the secondary process after, just can let the fashioned mould drop, and under the general circumstances, the transfer of panel cuts off once more, can have certain error, and when later stage cuts off, once the error is great, also can cause the damage to fashioned panel, based on this, need improve the mould for draw and side cut are combined.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a trimming and drawing composite die which is used for solving the problems proposed by the background art.

The trimming and drawing composite die comprises an upper die for extruding a plate and a lower die corresponding to the upper die, wherein a forming part is arranged between the upper die and the lower die and is used for forming the plate;

the upper die comprises a lower pressing plate, a groove is formed in the center of the bottom of the lower pressing plate, a mounting block is fixedly connected to the groove, a cutting positioning groove is formed in the outer side of the mounting block and the groove of the lower pressing plate, and a cutting assembly used for forming a plate is mounted;

the block body of installation piece department is the array and is provided with a plurality of mounting grooves, the mounting groove department install with the cooperation sunken board of forming die adaptation for supplementary panel shaping.

As a further improvement of the invention, the lower die comprises a bearing plate, hydraulic assemblies are arranged at the opposite angles of the periphery of the top of the bearing plate and used for extrusion molding of the plate, and the other free end of each hydraulic assembly is matched with the corresponding opening of the upper die.

As a further improvement of the invention, a forming part is arranged at the position of the top of the bearing plate, which is close to the middle part, and is used for matching with the plate to realize extrusion forming.

As a further improvement of the invention, the forming part comprises a die-casting area, wherein a positioning block is arranged on the periphery of the outer side frame of the die-casting area, and the bottom of the positioning block is connected with the bearing plate and used for positioning the die-casting area.

As a further improvement of the invention, a forming die is arranged at the top of the die-casting area, and the bottom of the forming die is planar and connected with the die-casting area.

As a further improvement of the invention, positioning soft strips are arranged on two sides of the forming die and used for trimming and positioning of the later-stage plate forming.

As a further improvement of the invention, the plate body of the lower pressing plate is provided with a trimming redundancy positioned at the outer side of the matched concave plate, and the trimming redundancy is matched with the positioning soft strip.

As a further improvement of the invention, a group of circular through holes are formed on two sides of the lower pressing plate, and positioning columns are arranged for the matching positioning of the upper die and the lower die.

Compared with the prior art, the invention has the following beneficial effects:

according to the invention, the upper die and the lower die are combined, so that the drawing operation of the plate is realized, meanwhile, when the plate is drawn, the corresponding cutting assembly can be installed in the cutting positioning groove arranged on the upper die, the cutting requirement can be realized by matching with the drawn material by utilizing the depth of the cutting assembly, and at the moment, the drawing and the cutting are carried out in the same die, so that the accuracy of the plate forming can be ensured as much as possible, the possibility of damage to the formed plate caused by dislocation is avoided, the secondary operation is avoided, and the forming efficiency is improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute an undue limitation to the application. In the drawings:

FIG. 1 is a schematic view of the upper and lower mold assemblies of the present invention;

FIG. 2 is a schematic view of the explosive structure of the upper die, the lower die and the forming part of the invention;

FIG. 3 is a schematic top view of a molded part of the present invention;

FIG. 4 is a schematic top view of a lower mold and molded part combination of the present invention;

FIG. 5 is a schematic side view of the mold, lower mold and molded part of the present invention;

FIG. 6 is a schematic view showing the combination structure of the upper mold and the molding part of the present invention;

FIG. 7 is a schematic top view of the upper die of the present invention;

FIG. 8 is a schematic view of the cross-sectional structure A-A of FIG. 7 in accordance with the present invention;

fig. 9 is a schematic diagram of the upper die perspective structure of the present invention.

In the figure: 1. an upper die; 2. a lower die; 3. forming a part;

11. a lower pressing plate; 12. positioning columns; 13. matching with the concave plate; 14. trimming and redundancy; 15. cutting off the positioning groove; 16. a mounting groove; 17. a mounting block;

21. a pressure bearing plate; 22. a hydraulic assembly;

31. a positioning block; 32. a die-casting area; 33. a forming die; 34. the soft strip is positioned.

Detailed Description

Various embodiments of the present invention are disclosed in the following drawings, which are presented in sufficient detail to provide a thorough understanding of the present invention. However, it should be understood that these physical details should not be used to limit the invention. That is, in some embodiments of the present invention, these physical details are not necessary. Moreover, for the sake of simplicity of illustration, some well-known and conventional structures and components are shown in the drawings in a simplified schematic manner.

In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.

Referring to fig. 1, 2, 3, 4 and 5 and 6, in general, the drawing die is a rigid drawing die, i.e. the male die and the female die are respectively arranged on a rigid part, the female die is stationary during drawing, and only the male die is drawn in the stroke of a slide block of the punch, or vice versa;

after the die is used, as no cut-off part exists between the die and the plate, the formed die can be separated after a secondary process is needed, in general, a certain error exists when the plate is transferred and cut off again, and the formed plate can be damaged once the error is larger when the plate is cut off later, therefore, the application provides the trimming and drawing composite die which comprises an upper die 1 for extruding the plate and a lower die 2 corresponding to the upper die 1, and a forming part 3 is arranged between the upper die 1 and the lower die 2 and is used for forming the plate;

the upper die 1 comprises a lower pressing plate 11, a groove is formed in the central position of the bottom of the lower pressing plate 11, a mounting block 17 is fixedly connected to the groove, a cutting positioning groove 15 is formed in the outer side of the mounting block 17 and the groove of the lower pressing plate 11, and a cutting assembly used for forming a plate is mounted;

the block body of the mounting block 17 is provided with a plurality of mounting grooves 16 in an array, and the mounting grooves 16 are provided with a matched concave plate 13 matched with a forming die 33 for assisting in forming the plate.

The trimming and drawing composite die comprises an upper die 1 for extruding a plate and a lower die 2 corresponding to the upper die. Between which a forming member 3 is arranged for the forming process of the board. The mould is characterized by the design of the upper mould 1.

The upper die 1 includes a lower platen 11, and a groove is provided at a bottom center position of the lower platen 11. At the recess a mounting block 17 is fixedly engaged. The outside of the mounting block 17 and the groove of the lower pressure plate 11 are provided with cutting positioning grooves 15, and a cutting assembly for the formed plate is mounted. With this design, the stretching and trimming processes are combined in the same mold.

Furthermore, the block portions of the mounting blocks 17 are arranged in an array, in which a number of mounting slots 16 are included. At each mounting groove 16, a mating recess plate 13 is mounted which is adapted to a forming die 33 for assisting the forming process of the sheet material. The design can further optimize the shape and quality of the plate, and ensure the accuracy and consistency of molding.

In conclusion, by using the trimming and drawing composite die and designing the upper die 1, the processes of extrusion, stretching, trimming, compounding and the like of the plate are integrated. The integrated design greatly improves the production efficiency, reduces errors and damages in the production process, and improves the quality and the precision of the formed product.

Referring to fig. 1, 2, 3 and 4, the lower die 2 includes a bearing plate 21, hydraulic assemblies 22 are disposed at opposite angles around the top of the bearing plate 21, for extrusion molding of the plate, and the other free end of each hydraulic assembly 22 is adapted to a corresponding opening of the upper die 1.

The top of the bearing plate 21 is provided with a forming part 3 near the middle for realizing extrusion forming by matching with a plate.

The forming part 3 comprises a die-casting area 32, a positioning block 31 is arranged around the outer side frame of the die-casting area 32, and the bottom of the positioning block 31 is connected with the bearing plate 21 and used for positioning the die-casting area 32.

The top of the die-casting area 32 is provided with a forming die 33, and the bottom of the forming die 33 is planar and connected with the die-casting area 32.

Positioning soft strips 34 are arranged on two sides of the forming die 33 and used for trimming and positioning of later plate forming.

The lower die 2 is another key component in the edge-cut drawing composite die. The hydraulic assembly comprises a bearing plate 21, and hydraulic assemblies 22 are arranged at the opposite corners of the top of the bearing plate 21. These hydraulic assemblies 22 are used for extrusion molding of the sheet material, and the other free ends of the hydraulic assemblies 22 are matched with corresponding openings of the upper die 1, so that the cooperation of the upper die 2 and the lower die 2 is realized.

The top of the bearing plate 21 is provided with a forming part 3 near the middle for realizing extrusion forming by matching with a plate. The molded part 3 comprises a die-cast area 32, and positioning blocks 31 are arranged around the outer side frame of the die-cast area 32. The bottom of the positioning block 31 is connected with the bearing plate 21, and is used for positioning the die-casting area 32, so as to ensure the accuracy and stability of the forming process.

The top of the die-casting area 32 is provided with a forming die 33, and the bottom of the forming die 33 is planar and connected with the die-casting area 32. Positioning soft strips 34 are arranged on two sides of the forming die 33 and used for trimming and positioning during later plate forming. These locating ribs 34 help ensure accurate positioning and trimming of the sheet during the forming process.

In the above embodiment, the lower die 2 portion of the side cut drawing composite die realizes the extrusion molding operation of the sheet material. The hydraulic assembly 22 provides sufficient pressure to effect extrusion of the sheet material and the forming member 3 and forming die 33 provide the proper shape and positioning to ensure the quality and accuracy of the sheet material formation.

Referring to fig. 5, 6, 7, 8 and 9, a trimming redundancy 14 is disposed on the outer side of the mating recess plate 13 at the plate body of the lower pressing plate 11, and the trimming redundancy 14 is adapted to the positioning soft strip 34.

A group of circular through holes are formed in two sides of the lower pressing plate 11, and positioning columns 12 are arranged and used for matching and positioning the upper die 1 and the lower die 2.

In order to further perfect the design of the trimming and drawing composite die, the plate body part of the lower pressing plate 11 is provided with trimming redundancy 14 at the outer side of the matched concave plate 13. The trim redundancy 14 is adapted to locate the soft strips 34 to provide additional trim assist locating functionality during subsequent sheet forming. The design can ensure the stability and the accuracy of the plate in the forming process.

In addition, a set of circular through holes are formed on both sides of the lower pressure plate 11, and positioning posts 12 are installed. The positioning columns 12 are used for matching and positioning between the upper die 1 and the lower die 2, and ensure accurate alignment and stable operation of the upper die 2 and the lower die 2. The installation of the positioning column 12 and the arrangement of the positioning holes further improve the accuracy and the reliability of the trimming and drawing composite die.

With these improvements, the lower platen 11 portion of the edge-cut drawing composite die is more complete. The arrangement of the trimming redundancy 14 and the cooperation of the trimming soft strips 34 and the positioning columns 12 enable the die to better control and position the plate in the trimming and forming process, and ensure the quality and precision of formed products.

The foregoing description is only illustrative of the invention and is not to be construed as limiting the invention. Various modifications and variations of the present invention will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, or the like, which is within the spirit and principle of the present invention, should be included in the scope of the claims of the present invention.

Claims

1. The trimming and drawing composite die comprises an upper die (1) for extruding a plate and a lower die (2) corresponding to the upper die, wherein a forming part (3) is arranged between the upper die (1) and the lower die (2) and is used for forming the plate;

the method is characterized in that:

the upper die (1) comprises a lower pressing plate (11), a groove is formed in the central position of the bottom of the lower pressing plate (11), a mounting block (17) is fixedly connected to the groove, a cutting positioning groove (15) is formed in the outer side of the mounting block (17) and the groove of the lower pressing plate (11), and a cutting assembly used for forming a plate is arranged;

the block of the mounting block (17) is provided with a plurality of mounting grooves (16) in an array manner, and the mounting grooves (16) are provided with a matched concave plate (13) matched with the forming die (33) for assisting in forming the plate.

2. A side cut drawing composite die as defined in claim 1, wherein: the lower die (2) comprises a bearing plate (21), hydraulic assemblies (22) are arranged at the opposite corners of the periphery of the top of the bearing plate (21) and used for extrusion molding of plates, and the other free end of each hydraulic assembly (22) is matched with a corresponding opening of the upper die (1).

3. A side cut drawing composite die as defined in claim 2, wherein: and a forming part (3) is arranged at the position, close to the middle part, of the top of the bearing plate (21) and is used for being matched with a plate to realize extrusion forming.

4. A side cut drawing composite die according to claim 3, wherein: the forming part (3) comprises a die-casting area (32), a positioning block (31) is arranged on the periphery of the outer side frame of the die-casting area (32), and the bottom of the positioning block (31) is connected with the bearing plate (21) and used for positioning the die-casting area (32).

5. The edge-cutting and drawing composite die as defined in claim 4, wherein: the top of the die-casting area (32) is provided with a forming die (33), and the bottom of the forming die (33) is in a plane and is connected with the die-casting area (32).

6. The edge-cutting and drawing composite die as defined in claim 5, wherein: positioning soft strips (34) are arranged on two sides of the forming die (33) and used for trimming and positioning of later-stage plate forming.

7. A side cut drawing composite die as defined in claim 1, wherein: the plate body of the lower pressing plate (11) is positioned at the outer side of the matched concave plate (13) and is provided with an edge cutting redundancy (14), and the edge cutting redundancy (14) is matched with the positioning soft strip (34).

8. A side cut drawing composite die as defined in claim 1, wherein: a group of circular through holes are formed in two sides of the lower pressing plate (11), and positioning columns (12) are arranged and used for matching and positioning the upper die (1) and the lower die (2).