CN112170647A

CN112170647A - Stamping die for large sheet metal part with nest hole

Info

Publication number: CN112170647A
Application number: CN202010851596.1A
Authority: CN
Inventors: 洪学玲; 郭龙江; 李东明; 陈浩
Original assignee: Chengdu Aircraft Industrial Group Co Ltd
Current assignee: Chengdu Aircraft Industrial Group Co Ltd
Priority date: 2020-08-21
Filing date: 2020-08-21
Publication date: 2021-01-05
Anticipated expiration: 2040-08-21
Also published as: CN112170647B

Abstract

The invention discloses a stamping die for a large sheet metal part with a pit hole, which belongs to the technical field of part machining and comprises a main die and an auxiliary die, wherein the main die and the auxiliary die can be assembled into the stamping die for the complete large sheet metal part, the pit hole of the large sheet metal part is positioned at the auxiliary die, when a part is taken, the auxiliary die can be separated from the main die through a pit hole structure and the stamping-formed large sheet metal part at the same time, and then the auxiliary die is separated from the stamping-formed large sheet metal part. According to the invention, by optimizing the composition structure of the stamping die, the particularity that the large sheet metal part has the socket hole is fully utilized, the stamping die capable of directly taking the part is designed, additional fixing structures such as bolts and nuts are not needed, the processing efficiency of the large sheet metal part is greatly improved, and the manufacturing period of the large sheet metal part is shortened; the operability is higher, can be quick accomplish stamping die's equipment and dismantlement, and the part shaping high quality is fit for extensively popularizing and applying.

Description

Stamping die for large sheet metal part with nest hole

Technical Field

The invention relates to the technical field of part processing dies, in particular to a stamping die for a large sheet metal part with a nest hole.

Background

The stamping technology occupies an important position in modern industry and is an indispensable processing method in the industry at present. The design level of the stamping die for the sheet metal parts directly influences the quality of the parts, and the stamping die is reasonable in structure, optimized and convenient to operate and has very important significance. The existing die for stamping large sheet metal parts is generally formed by combining a plurality of die bodies, as shown in fig. 1 and 2, the die bodies are divided into three major parts: the die body I, the die body II and the die body III are connected through a refined bolt and a nut. When the sheet metal part with the nest hole is required to be punched, the operation performance of the die is extremely poor, one die is formed at each time, the nut is required to be unscrewed, the bolt is pulled out, the middle die body II is firstly pulled out by force, and then the die body I and the die body III are moved, so that the part taking process can be completed. When the next large sheet metal part needs to be punched, the three large die bodies of the die need to be reassembled, and then the three large die bodies are aligned and connected by using bolts, and nuts are tightened. The whole operation process is complex, the forming efficiency is extremely low due to the fact that the forming device needs to be mounted and dismounted by means of tools, and the forming device is quite unfavorable for sheet metal parts which are required to be produced in batches and have socket holes.

Disclosure of Invention

The invention provides a stamping die which is simple in structure, easy to assemble and disassemble, good in operating performance and capable of simplifying the workpiece taking process, aiming at large sheet metal parts with socket hole structures.

The invention is realized by the following technical scheme: the utility model provides a have stamping die of large-scale panel beating part in nest hole, includes the main mould and assists the mould, the main mould can assemble into the stamping die of complete large-scale panel beating part with assisting the mould, the nest hole of large-scale panel beating part is located assists mould department, when getting, it can separate with the main mould simultaneously with stamping forming's large-scale panel beating part through nest hole structure to assist the mould, then assists the mould again with stamping forming's large-scale panel beating part separation.

The working principle of the technical scheme is that the main die and the auxiliary die are combined in an assembling mode to form a complete stamping die. Because large-scale panel beating part has nest hole structure, consequently, assist the mould setting to make large-scale panel beating part nest fashioned structure, simultaneously, assist mould and large-scale panel beating part through nest hole structure temporary fixation together, after large-scale panel beating part stamping forming, can directly make large-scale panel beating part break away from the main mould with assisting the mould together, just so avoid using the fixed mode of bolt nut. And then, under the condition that the main die does not block, taking down the auxiliary die to obtain the large-scale sheet metal part with the socket hole.

Because this technical scheme is directed against is large-scale sheet metal part, consequently get the piece process and can't get the piece through the manpower, all advance through large-scale auxiliary assembly and get the piece, through optimizing stamping die's component structure, the large-scale sheet metal part of make full use of has the particularity of nest hole, designs out the stamping die that can directly get the piece, need not fixed knot structures such as extra bolt and nut.

In order to better realize the invention, the main die is in a convex structure, the auxiliary die is composed of a first embedded block and a second embedded block, the first embedded block and the second embedded block are respectively assembled on two sides of the main die, the first embedded block and the second embedded block are combined to form a complete stamping die, and the socket hole of the large sheet metal part is positioned on the first embedded block and/or the second embedded block.

In order to better realize the invention, further, the joint surfaces of the main die and the first and second insert blocks are provided with straight pins, the joint surfaces of the first and second insert blocks and the main die are provided with insertion holes matched with the straight pins, and the first and second insert blocks are inserted into the straight pins to be assembled with the main die into a complete stamping die.

In order to better realize the invention, further, a straight pin inserting blind hole is arranged on the joint surface of the main die and the first insert block and the second insert block, and the straight pin is inserted into the blind hole and is detachably connected with the main die.

In order to better realize the invention, further, the straight pin is GB/T119.2-200 cylindrical pin, and the fit tolerance between the straight pin and the first insert block, the second insert block and the main die is H7/n 6.

In order to better implement the present invention, further, the main mold has a symmetrical structure, and the first insert and the second insert are axisymmetric about a central axis of the main mold.

In order to better implement the invention, further, a gap of 0.1mm exists between the first and second insert blocks and the main die combining surface.

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

(1) according to the invention, by optimizing the composition structure of the stamping die, the particularity that the large sheet metal part has the socket hole is fully utilized, the stamping die capable of directly taking the part is designed, additional fixing structures such as bolts and nuts are not needed, the processing efficiency of the large sheet metal part is greatly improved, and the manufacturing period of the large sheet metal part is shortened;

(2) according to the invention, by optimizing the composition structure of the stamping die, the operation process of workers is higher in operability, the assembly and disassembly of the stamping die can be rapidly completed, and the integrity of the stamping die is higher than the forming quality of parts manufactured by the existing assembly die;

(3) according to the invention, by optimizing the composition structure of the stamping die, the large sheet metal part is simpler to form, no additional tool is required for matching, and the forming die is suitable for batch production of the large sheet metal part and suitable for wide popularization and application.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a front view of a stamping die of a conventional large sheet metal part;

FIG. 2 is a top view of a stamping die for a conventional large sheet metal part;

FIG. 3 is a front view of the die plate of the present invention;

fig. 4 is a drawing illustrating a process of releasing the die plate according to the present invention.

Wherein: 1-die body I, 2-die body II, 3-die body III, 4-nest hole, 5-nut, 6-bolt, 7-large sheet metal part, 8-main die, 9-first inserted block, 10-second inserted block, 11-straight round pin.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the definitions of "first" and "second" are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly including one or more of such features. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1:

the primary structure of this embodiment, as shown in fig. 3, including main mould 8 and supplementary mould, the stamping die of complete large-scale sheet metal part 7 can be assembled into with supplementary mould to main mould 8, the nest hole of large-scale sheet metal part 7 is located supplementary mould department, when getting, supplementary mould can separate with main mould 8 simultaneously through the large-scale sheet metal part 7 of nest hole structure and stamping forming, then supplementary mould separates with the large-scale sheet metal part 7 of stamping forming again.

In a specific embodiment, as shown in fig. 4, the main die 8 and the auxiliary die are assembled to form a complete stamping die, and then the surface of the complete stamping die is covered with a large sheet metal blank, and then the large sheet metal blank is stamped into the large sheet metal part 7. At this moment, because there is nest hole 4 structure, assist mould and large-scale sheet metal part and combine temporarily, directly will assist mould and large-scale sheet metal part and take off from main mould 8, then, under the blockking that does not have main mould 8, take off and assist the mould, obtain complete large-scale sheet metal part 7.

Example 2:

in this embodiment, the structure of the main die 8 and the auxiliary die is further defined, as shown in fig. 3 and 4, the main die 8 is in a "convex" structure, the auxiliary die is composed of a first insert 9 and a second insert 10, the first insert 9 and the second insert 10 are respectively assembled on two sides of the main die 8, the first insert 9 and the second insert 10 are combined to form a complete stamping die, and the socket hole of the large sheet metal part 7 is located on the first insert 9 and/or the second insert 10. The structure of the main die 8 and the auxiliary die is particularly limited, so that the structure can be better suitable for manufacturing large sheet metal parts. Other parts of this embodiment are the same as those of the above embodiment, and are not described again.

Example 3:

in this embodiment, a connection manner between the main die 8 and the auxiliary die is further defined, as shown in fig. 3 and 4, a straight pin 11 is disposed on a joint surface between the main die 8 and the first insert 9 and the second insert 10, a socket matched with the straight pin 11 is disposed on a joint surface between the first insert 9 and the main die 8, and the first insert 9 and the second insert 10 are inserted into the straight pin 11 to be assembled with the main die 8 into a complete stamping die. The straight pin 11 is additionally arranged, so that the main die 8 and the auxiliary die can be combined more stably, the stamping forming quality of the large sheet metal part is improved, and the workpiece taking of the large sheet metal part 7 is not influenced. Other parts of this embodiment are the same as those of the above embodiment, and are not described again.

Example 4:

in the present embodiment, on the basis of the above embodiments, the structure of the main mold 8 is further defined, a blind hole for inserting the straight pin 11 is provided on a joint surface of the main mold 8 with the first insert 9 and the second insert 10, and the straight pin 11 is inserted into the blind hole and detachably connected with the main mold 8. The straight pin 11 can be separated from the main mold 8 and the auxiliary mold, and whether the straight pin 11 is needed to be further fixed can be selected according to actual requirements. Other parts of this embodiment are the same as those of the above embodiment, and are not described again.

Example 5:

this embodiment is based on the above embodiment and further defines the straight pin 11, the straight pin 11 is a GB/T119.2-200 cylindrical pin, and the fit tolerance between the straight pin 11 and the first insert 9, the second insert 10, and the main mold 8 is H7/n 6. Other parts of this embodiment are the same as those of the above embodiment, and are not described again.

Example 6:

in this embodiment, the structure of the main mold and the sub-mold is further defined on the basis of the above-mentioned embodiment, as shown in fig. 3, the main mold 8 has a symmetrical structure, and the first insert 9 and the second insert 10 are axisymmetrical about the central axis of the main mold 8. Other parts of this embodiment are the same as those of the above embodiment, and are not described again.

Example 7:

in this embodiment, on the basis of the above embodiments, there is further defined a gap of 0.1mm between the joint surfaces of the first insert 9 and the second insert 10 and the main mold 8. The arrangement is mainly convenient for the large sheet metal part 7 to take out. Other parts of this embodiment are the same as those of the above embodiment, and are not described again.

It is to be understood that the operation principle and operation of the stamping die structure according to an embodiment of the present invention, such as the straight pin 11, are well known in the art and will not be described in detail herein.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. The utility model provides a have stamping die of large-scale panel beating part in nest hole, a serial communication port, include main mould (8) and assist the mould, the stamping die of complete large-scale panel beating part (7) can be assembled into with assisting the mould in main mould (8), the nest hole of large-scale panel beating part (7) is located assists mould department, when getting, it can separate with main mould (8) simultaneously through the large-scale panel beating part (7) of nest hole structure and stamping forming to assist the mould, then assists the mould again and separates with the large-scale panel beating part (7) of stamping forming.

2. The stamping die for the large sheet metal part with the socket hole as claimed in claim 1, wherein the main die (8) is in a structure like a Chinese character 'tu', the auxiliary die is composed of a first insert (9) and a second insert (10), the first insert (9) and the second insert (10) are respectively assembled on two sides of the main die (8), the first insert (9) and the second insert (10) are combined to form a complete stamping die, and the socket hole of the large sheet metal part (7) is located on the first insert (9) and/or the second insert (10).

3. The stamping die for the large sheet metal parts with the socket holes as claimed in claim 2, wherein the joint surfaces of the main die (8) and the first and second inserts (9, 10) are provided with straight pins (11), the joint surfaces of the first and second inserts (9, 10) and the main die (8) are provided with insertion holes matched with the straight pins (11), and the first and second inserts (9, 10) are inserted into the straight pins (11) to be assembled with the main die (8) into a complete stamping die.

4. The stamping die for the large sheet metal part with the socket hole as claimed in claim 3, wherein the joint surface of the main die (8) with the first insert (9) and the second insert (10) is provided with a blind hole for inserting the straight pin (11), and the straight pin (11) is inserted into the blind hole and is detachably connected with the main die (8).

5. A stamping die for large sheet metal parts with sockets as claimed in claim 3, characterised in that the straight pin (11) is a GB/T119.2-200 cylindrical pin, and the fit tolerance between the straight pin (11) and the first insert (9), the second insert (10) and the main die (8) is H7/n 6.

6. A stamping die for large sheet metal parts with dimples according to any one of claims 1 to 5, characterized in that the main die (8) has a symmetrical structure, and the first insert (9) and the second insert (10) are axisymmetric about the central axis of the main die (8).

7. A stamping die for large sheet metal parts with sockets is characterized in that a gap of 0.1mm exists between the combining surfaces of the first insert block (9), the second insert block (10) and the main die (8).