CN214719927U

CN214719927U - Long stretching die

Info

Publication number: CN214719927U
Application number: CN202121051502.9U
Authority: CN
Inventors: 胡立勇
Original assignee: Ninghai Yongye Auto Parts Co ltd
Current assignee: Ninghai Yongye Auto Parts Co ltd
Priority date: 2021-05-17
Filing date: 2021-05-17
Publication date: 2021-11-16
Anticipated expiration: 2031-05-17

Abstract

The utility model relates to a long stretching die, which comprises a first lower template, a second lower template and a third lower template which are arranged from left to right in sequence, and a first upper template, a second upper template and a third upper template which are respectively arranged above the first lower template, the second lower template and the third lower template and are mutually matched with the first lower template, the second lower template and the third lower template; a hole opening assembly, a first stretching assembly, a second stretching assembly and a first forming assembly are sequentially arranged between the first lower template and the first upper template from left to right; the utility model discloses under the prerequisite that does not influence machining efficiency, adopt progressive mode earlier to carry out the punching press in order to form the shrinkage pool to panel, then form dark shrinkage pool after passing through a plurality of shaping and reaming step again, and then effectively avoid the material to take place to warp or be broken because of the atress is too fast to showing and improving the processing qualification rate in order to reduce the material volume of scrapping by a wide margin, and then thoroughly avoided the material extravagant with reduction processing cost.

Description

Long stretching die

Technical Field

The utility model relates to a long tensile mould.

Background

Long drawing is a common processing method in sheet metal part forming process, and aims to punch a concave hole on a sheet material and draw and extend the concave hole to form a deep concave hole; the long stretching is carried out by means of a matched die, when the existing long stretching die is used for carrying out deep concave hole processing on a material, in order to improve the processing efficiency, a one-time stamping and stretching mode is adopted, so that the material is extremely easy to deform or even directly broken due to too fast stress, the processing qualified rate is lower, the material scrappage is increased sharply, the material waste is serious, the processing cost is increased on the contrary, and the improvement is waited for.

SUMMERY OF THE UTILITY MODEL

To the current situation of above-mentioned prior art, the utility model aims to solve the technical problem that a long tensile mould that is showing to have improved the processing qualification rate in order to reduce the material volume of scrapping by a wide margin, and then has thoroughly avoided the material waste in order to reduce the processing cost is provided.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: a long stretching die is characterized by comprising a first lower template, a second lower template and a third lower template which are sequentially arranged from left to right, and a first upper template, a second upper template and a third upper template which are respectively arranged above the first lower template, the second lower template and the third lower template and are mutually matched with the first lower template, the second lower template and the third lower template; a hole opening assembly, a first stretching assembly, a second stretching assembly and a first forming assembly are sequentially arranged between the first lower template and the first upper template from left to right; a second forming assembly, a first hole expanding assembly, a second hole expanding assembly, a third hole expanding assembly, a fourth hole expanding assembly and a fifth hole expanding assembly are sequentially arranged between the second lower template and the second upper template from left to right, a sixth hole expanding assembly is arranged between the third lower template and the third upper template, and the hole expanding assembly comprises a hole opening column vertically fixed at the bottom of the first upper template and a hole opening die holder embedded and fixed in the first lower template; the first stretching assembly comprises a first stretching column vertically fixed at the bottom of the first upper template and a first stretching die holder embedded and fixed in the first lower template; a first stretching die cavity is formed in the first stretching die holder, the end part of the first stretching column is movably inserted into the first stretching die cavity, and the second stretching assembly comprises a second stretching column vertically fixed at the bottom of the first upper die plate and a second stretching die holder embedded and fixed in the first lower die plate; a second stretching die cavity is formed in the second stretching die holder, and the end part of the second stretching column is movably inserted into the second stretching die cavity; the first forming assembly comprises a first forming column vertically fixed at the bottom of the first upper template and a first forming die holder embedded and fixed in the first lower template; a first molding die cavity is formed in the first molding die holder, a first step column is formed outwards in the middle of the first molding column, the first step column is movably inserted into the first molding die cavity, and the second molding assembly comprises a second molding column vertically fixed at the bottom of the second upper die plate and a second molding die holder embedded and fixed in the second lower die plate; a second molding die cavity is formed in the second molding die seat, a second step column is formed outwards at the end part of the second molding column, the outer diameter of the second step column is smaller than that of the second molding column, and the second step column is movably inserted into the second molding die cavity.

Preferably, the first broaching assembly comprises a first broaching column vertically fixed at the bottom of the second upper template and a first broaching die holder embedded and fixed in the second lower template; a first reaming die cavity is formed in the first reaming die holder, and the end part of the first reaming column is movably inserted into the first reaming die cavity.

Preferably, the second reaming assembly comprises a second reaming column vertically fixed at the bottom of the second upper template and a second reaming die holder embedded and fixed in the second lower template; and a second reaming die cavity is formed in the second reaming die holder, and the end part of the second reaming column is movably inserted into the second reaming die cavity.

Preferably, the third reaming assembly comprises a third reaming column vertically fixed at the bottom of the second upper template and a third reaming die holder embedded and fixed in the second lower template; and a third reaming die cavity is formed in the third reaming die holder, and the end part of the third reaming column is movably inserted into the third reaming die cavity.

Preferably, the fourth broaching assembly comprises a fourth broaching column vertically fixed at the bottom of the second upper die plate and a fourth broaching die holder embedded and fixed in the second lower die plate; a fourth reaming die cavity is formed in the fourth reaming die holder, and the end part of the fourth reaming column is movably inserted into the fourth reaming die cavity.

Preferably, the fifth reaming assembly comprises a fifth reaming column vertically fixed at the bottom of the second upper template and a fifth reaming die holder embedded and fixed in the second lower template; a fifth reaming die cavity is formed in the fifth reaming die holder, and the end part of the fifth reaming column is movably inserted into the fifth reaming die cavity.

Preferably, the sixth reaming assembly comprises a sixth reaming column vertically fixed at the bottom of the third upper template and a sixth reaming die holder embedded and fixed in the third lower template; a sixth reaming die cavity is formed in the sixth reaming die holder, and the end part of the sixth reaming column is movably inserted into the sixth reaming die cavity.

Preferably, the outer diameters of the first, second, third, fourth, fifth and sixth expanded columns are sequentially increased.

Preferably, the inner diameters of the first reaming cavity, the second reaming cavity, the third reaming cavity, the fourth reaming cavity, the fifth reaming cavity and the sixth reaming cavity are sequentially increased.

Compared with the prior art, the utility model has the advantages of: the utility model discloses under the prerequisite that does not influence machining efficiency, adopt progressive mode earlier to carry out the punching press in order to form the shrinkage pool to panel, then form dark shrinkage pool after passing through a plurality of shaping and reaming step again, and then effectively avoid the material to take place to warp or be broken because of the atress is too fast to showing and improving the processing qualification rate in order to reduce the material volume of scrapping by a wide margin, and then thoroughly avoided the material extravagant with reduction processing cost.

Drawings

FIG. 1 is a left front side structural view of the present invention;

fig. 2 is the utility model discloses a left front side structure picture of trompil subassembly, first tensile subassembly, the tensile subassembly of second, first forming component, second forming component, first reaming subassembly, second reaming subassembly, third reaming subassembly, fourth reaming subassembly, fifth reaming subassembly and sixth reaming subassembly.

Detailed Description

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which the invention belongs. The use of "first," "second," and similar terms in the description herein do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

To maintain the following description of the embodiments of the present invention clear and concise, detailed descriptions of well-known functions and components may be omitted.

As shown in fig. 1-2, a long stretching die comprises a first lower die plate 1, a second lower die plate 2, a third lower die plate 3, a first upper die plate 4, a second upper die plate 5, and a third upper die plate 6, wherein the first lower die plate 1, the second lower die plate 2, and the third lower die plate 3 are sequentially arranged from left to right, and the first upper die plate 4, the second upper die plate 5, and the third upper die plate 6 are respectively arranged above the first lower die plate 1, the second lower die plate 2, and the third lower die plate 3 and are respectively matched with the first lower die plate 1, the second lower die plate 2, and the third lower die plate 3; a hole opening component 11, a first stretching component 12, a second stretching component 13 and a first forming component 14 which are distributed from left to right in sequence are further arranged between the first lower template 1 and the first upper template 4; a second forming assembly 21, a first hole expanding assembly 22, a second hole expanding assembly 23, a third hole expanding assembly 24, a fourth hole expanding assembly 25 and a fifth hole expanding assembly 26 which are sequentially distributed from left to right are further arranged between the second lower template 2 and the second upper template 5, a sixth hole expanding assembly 31 is further arranged between the third lower template 3 and the third upper template 6, and the hole opening assembly 11 comprises a hole opening column 111 vertically fixed at the bottom of the first upper template 4 and a hole opening die holder 112 embedded and fixed in the first lower template 1; the opening die holder 112 is provided with an opening die cavity 1121, the end of the opening column 111 is movably inserted into the opening die cavity 1121, and the first stretching assembly 12 comprises a first stretching column 121 vertically fixed at the bottom of the first upper die plate 4 and a first stretching die holder 122 embedded and fixed in the first lower die plate 1; a first drawing die cavity 1221 is formed in the first drawing die holder 122, an end of the first drawing column 121 is movably inserted into the first drawing die cavity 1221, and the second drawing assembly 13 includes a second drawing column 131 vertically fixed at the bottom of the first upper die plate 4 and a second drawing die holder 132 embedded and fixed in the first lower die plate 1; a second drawing die cavity 1321 is formed in the second drawing die holder 132, and an end of the second drawing column 131 is movably inserted into the second drawing die cavity 1321; the first molding assembly 14 comprises a first molding column 141 vertically fixed at the bottom of the first upper template 4 and a first molding die holder 142 embedded and fixed in the first lower template 1; a first molding cavity 1421 is formed in the first molding die holder 142, a first step pillar 1411 is formed outwards in the middle of the first molding pillar 141, the first step pillar 1411 is movably inserted into the first molding cavity 1421, and the second molding assembly 21 includes a second molding pillar 211 vertically fixed at the bottom of the second upper template 5 and a second molding die holder 212 embedded and fixed in the second lower template 2; a second molding cavity 2121 is formed in the second molding die holder 212, a second step 2111 is outwardly formed at an end of the second molding column 211, an outer diameter of the second step 2111 is smaller than that of the second molding column 211, and the second step 2111 is movably inserted into the second molding cavity 2121.

The first broaching assembly 22 comprises a first broaching column 221 vertically fixed at the bottom of the second upper die plate 5 and a first broaching die holder 222 embedded and fixed in the second lower die plate 2; first broaching die holder 222 has a first broaching cavity 2221 therein, and the end of first broaching column 221 is movably inserted into first broaching cavity 2221.

The second broaching assembly 23 comprises a second broaching column 231 vertically fixed at the bottom of the second upper die plate 5 and a second broaching die holder 232 embedded and fixed in the second lower die plate 2; a second broaching die cavity 2321 is opened in the second broaching die holder 232, and the end of the second broaching column 231 is movably inserted into the second broaching die cavity 2321.

The third broaching assembly 24 comprises a third broaching column 241 vertically fixed at the bottom of the second upper die plate 5 and a third broaching die holder 242 embedded and fixed in the second lower die plate 2; a third broaching die cavity 2421 is opened in the third broaching die holder 242, and the end of the third broaching column 241 is movably inserted into the third broaching die cavity 2421.

The fourth broaching assembly 25 comprises a fourth broaching column 251 vertically fixed at the bottom of the second upper template 5 and a fourth broaching die holder 252 embedded and fixed in the second lower template 2; a fourth broaching die cavity 2521 is opened in the fourth broaching die holder 252, and an end of the fourth broaching column 251 is movably inserted into the fourth broaching die cavity 2521.

The fifth reaming assembly 26 comprises a fifth reaming column 261 vertically fixed at the bottom of the second upper template 5 and a fifth reaming die holder 262 embedded and fixed in the second lower template 2; a fifth broaching die cavity 2621 is opened in the fifth broaching die holder 262, and an end of the fifth broaching column 261 is movably inserted into the fifth broaching die cavity 2621.

The sixth reaming assembly 31 comprises a sixth reaming column 311 vertically fixed at the bottom of the third upper template 6 and a sixth reaming die holder 312 embedded and fixed in the third lower template 3; a sixth broaching die cavity 3121 is opened in the sixth broaching die holder 312, and an end of the sixth broaching column 311 is movably inserted into the sixth broaching die cavity 3121.

The outer diameters of the first and

second reamer columns

221, 231, 241, 251, 261 and 311 are increased in sequence.

The inner diameters of first counterbore cavity 2221, second counterbore cavity 2321, third counterbore cavity 2421, fourth counterbore cavity 2521, fifth counterbore cavity 2621 and sixth counterbore cavity 3121 increase in sequence.

When in use: the sheet is fed from left to right through the aperturing assembly 11, the first tensioning assembly 12, the second tensioning assembly 13, the first forming assembly 14, the second forming assembly 21, the first reaming assembly 22, the second reaming assembly 23, the third reaming assembly 24, the fourth reaming assembly 25, the fifth reaming assembly 26, and the sixth reaming assembly 31 in that order.

When the sheet moves above the hole-opening mold cavity 1121, the hole-opening column 111 moves downward under the action of the first upper mold plate 4 and presses the sheet into the hole-opening mold cavity 1121 to complete the formation of a concave hole; then, the hole-opening column 111 moves upwards, the sheet after hole opening continues to move forwards to the position above the first stretching die cavity 1221, the concave hole sinks into the first stretching die cavity 1221, the first stretching column 121 moves downwards under the action of the first upper die plate 4 and is inserted into the concave hole, and the concave hole is further stretched downwards for a certain distance; then, the first stretching column 121 moves upwards, the stretched sheet continuously moves forwards to the position above the second stretching die cavity 1321, the concave hole sinks into the second stretching die cavity 1321, the second stretching column 131 moves downwards under the action of the first upper die plate 4 and is inserted into the concave hole, and the concave hole is further continuously stretched downwards for a certain distance; then, the first stretching column 121 moves upward, the stretched sheet continuously moves forward to the upper side of the first molding cavity 1421, the concave hole sinks into the first molding cavity 1421, the first molding column 141 moves downward under the action of the first upper mold plate 4 and is inserted into the concave hole, and a step hole is molded in the concave hole by means of the first step column 1411.

Then, the first molding column 141 moves upward, the sheet with the concave hole molded thereon moves forward to above the second molding cavity 2121, the concave hole sinks into the second molding cavity 2121, the second molding column 211 moves downward under the action of the first upper mold plate 4 and is inserted into the stepped hole in the concave hole, and the inner diameter of the stepped hole is enlarged by the second stepped column 2111.

Then, the second molding column 211 moves upward, the sheet with the stepped hole reamed moves forward continuously and sinks above the first reaming cavity 2221, the second reaming cavity 2321, the third reaming cavity 2421, the fourth reaming cavity 2521 and the fifth reaming cavity 2621 in sequence, and correspondingly, the first reaming column 221, the second reaming column 231, the third reaming column 241, the fourth reaming column 251 and the fifth reaming column 261 are driven by the second upper mold plate 5 to be inserted into the stepped hole downward in sequence, so as to gradually enlarge the inner diameter of the stepped hole.

Then, the sheet after five times of broaching continues to move forward to the position above the sixth broaching die cavity 3121, the sixth broaching column 311 is driven by the third upper die plate 6 to be inserted downward into the stepped hole, and the inner diameter of the stepped hole is expanded for the last time.

The utility model discloses under the prerequisite that does not influence machining efficiency, adopt progressive mode earlier to carry out the punching press in order to form the shrinkage pool to panel, then form dark shrinkage pool after passing through a plurality of shaping and reaming step again, and then effectively avoid the material to take place to warp or be broken because of the atress is too fast to showing and improving the processing qualification rate in order to reduce the material volume of scrapping by a wide margin, and then thoroughly avoided the material extravagant with reduction processing cost.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that various changes in the embodiments and modifications thereof may be made, and equivalents may be substituted for elements thereof; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A long stretching die is characterized by comprising a first lower template, a second lower template and a third lower template which are sequentially arranged from left to right, and a first upper template, a second upper template and a third upper template which are respectively arranged above the first lower template, the second lower template and the third lower template and are mutually matched with the first lower template, the second lower template and the third lower template; a hole opening assembly, a first stretching assembly, a second stretching assembly and a first forming assembly are sequentially arranged between the first lower template and the first upper template from left to right; a second forming assembly, a first hole expanding assembly, a second hole expanding assembly, a third hole expanding assembly, a fourth hole expanding assembly and a fifth hole expanding assembly are sequentially arranged between the second lower template and the second upper template from left to right, a sixth hole expanding assembly is arranged between the third lower template and the third upper template, and the hole expanding assembly comprises a hole opening column vertically fixed at the bottom of the first upper template and a hole opening die holder embedded and fixed in the first lower template; the first stretching assembly comprises a first stretching column vertically fixed at the bottom of the first upper template and a first stretching die holder embedded and fixed in the first lower template; a first stretching die cavity is formed in the first stretching die holder, the end part of the first stretching column is movably inserted into the first stretching die cavity, and the second stretching assembly comprises a second stretching column vertically fixed at the bottom of the first upper die plate and a second stretching die holder embedded and fixed in the first lower die plate; a second stretching die cavity is formed in the second stretching die holder, and the end part of the second stretching column is movably inserted into the second stretching die cavity; the first forming assembly comprises a first forming column vertically fixed at the bottom of the first upper template and a first forming die holder embedded and fixed in the first lower template; a first molding die cavity is formed in the first molding die holder, a first step column is formed outwards in the middle of the first molding column, the first step column is movably inserted into the first molding die cavity, and the second molding assembly comprises a second molding column vertically fixed at the bottom of the second upper die plate and a second molding die holder embedded and fixed in the second lower die plate; a second molding die cavity is formed in the second molding die seat, a second step column is formed outwards at the end part of the second molding column, the outer diameter of the second step column is smaller than that of the second molding column, and the second step column is movably inserted into the second molding die cavity.

2. The long drawing die of claim 1, wherein the first broaching assembly comprises a first broaching column vertically fixed at the bottom of the second upper die plate and a first broaching die holder embedded and fixed in the second lower die plate; a first reaming die cavity is formed in the first reaming die holder, and the end part of the first reaming column is movably inserted into the first reaming die cavity.

3. The long drawing die of claim 2, wherein the second broaching assembly comprises a second broaching column vertically fixed at the bottom of the second upper die plate and a second broaching die holder embedded and fixed in the second lower die plate; and a second reaming die cavity is formed in the second reaming die holder, and the end part of the second reaming column is movably inserted into the second reaming die cavity.

4. The long drawing die of claim 3, wherein the third broaching assembly comprises a third broaching column vertically fixed at the bottom of the second upper die plate and a third broaching die holder embedded and fixed in the second lower die plate; and a third reaming die cavity is formed in the third reaming die holder, and the end part of the third reaming column is movably inserted into the third reaming die cavity.

5. The long drawing die of claim 4, wherein the fourth broaching assembly comprises a fourth broaching column vertically fixed at the bottom of the second upper die plate and a fourth broaching die holder embedded and fixed in the second lower die plate; a fourth reaming die cavity is formed in the fourth reaming die holder, and the end part of the fourth reaming column is movably inserted into the fourth reaming die cavity.

6. The long drawing die of claim 5, wherein the fifth reaming assembly comprises a fifth reaming column vertically fixed at the bottom of the second upper die plate and a fifth reaming die holder embedded and fixed in the second lower die plate; a fifth reaming die cavity is formed in the fifth reaming die holder, and the end part of the fifth reaming column is movably inserted into the fifth reaming die cavity.

7. The long drawing die of claim 6, wherein the sixth reaming assembly comprises a sixth reaming column vertically fixed at the bottom of the third upper die plate and a sixth reaming die holder embedded and fixed in the third lower die plate; a sixth reaming die cavity is formed in the sixth reaming die holder, and the end part of the sixth reaming column is movably inserted into the sixth reaming die cavity.

8. A long drawing die according to claim 7, wherein the outer diameters of the first, second, third, fourth, fifth and sixth reaming columns increase in order.

9. A long drawing die according to claim 8, wherein the first, second, third, fourth, fifth and sixth counterboring die cavities have successively increasing internal diameters.