CN211360321U - Bolt machining die - Google Patents

Bolt machining die Download PDF

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Publication number
CN211360321U
CN211360321U CN201921917880.3U CN201921917880U CN211360321U CN 211360321 U CN211360321 U CN 211360321U CN 201921917880 U CN201921917880 U CN 201921917880U CN 211360321 U CN211360321 U CN 211360321U
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China
Prior art keywords
die
bolt
hole
rod
punching
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Active
Application number
CN201921917880.3U
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Chinese (zh)
Inventor
房国明
兰子刚
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Huizhou Zhuoyue Fastening System Co ltd
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Huizhou Zhuoyue Fastening System Co ltd
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Priority to CN201921917880.3U priority Critical patent/CN211360321U/en
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Abstract

The utility model relates to a bolt mold processing, including the essence towards the mould, be located the essence towards the lower mould of last mould downside of essence towards, be located the essence towards the stick towards the needle of going up mould inside of essence towards, the top center of the mould of essence towards is equipped with first guide hole downwards, the second guide hole is connected to first guide hole lower extreme, the lower part center of the mould of essence towards, be equipped with a die benevolence or four towards mould benevolence, the lower extreme of a die benevolence or four towards mould benevolence, with the lower extreme parallel and level of the mould of essence towards, the center of a die benevolence or four towards mould benevolence, be equipped with the bolt head through-hole, the upper end of bolt head through-hole, the lower extreme of intercommunication second. And a bolt rod through hole is formed in the center of the fine blanking lower die. The pin punching rod can move up and down in the first guide hole, the second guide hole and the through hole of the bolt head respectively, and the bolt head is subjected to one-punching and four-punching processing respectively. When one punching and four punching of this scheme add man-hour, the fine blanking goes up the mould, fine blanking lower mould, the needle dashes the stick, is general, has saved the mould cost, has improved work efficiency.

Description

Bolt machining die
Technical Field
The utility model relates to a bolt production field especially relates to a bolt mold processing.
Background
As shown in fig. 1, a bolt with a cross-shaped slot. The existing die design of the bolt product is two dies and four punches: one-punch preliminary forming (without a cross-pin groove as shown in fig. 2), three-punch ejection, four-punch forming (with a cross-pin groove as shown in fig. 3). The existing two-die four-punch mode has the defects that the cross groove edge has burrs, the head of a bolt is not full, and the qualified rate of finished products is not high.
Aiming at the problems, the invention provides a bolt processing die.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an invention purpose lies in solving current two moulds four towards mode, has the cross limit to have the burr, the bolt head is not full, the problem that the finished product qualification rate is not high. The concrete solution is as follows:
the utility model provides a bolt mold processing, includes the essence and dashes the mould, is located the essence of the essence side of dashing of going up the mould downside and dashes the stick, the top center that the essence was dashed to go up the mould is equipped with first guide hole downwards, and the second guide hole is connected to first guide hole lower extreme, and the lower part center that the essence was dashed to go up the mould is equipped with a die benevolence or four towards mould benevolence, and the lower extreme of a die benevolence or four towards mould benevolence, with the lower extreme parallel and level of the mould of essence towards, the center of a die benevolence or four towards mould benevolence is equipped with the bolt head through-hole, the upper end of bolt head through-hole, the lower extreme of intercommunication second. The center of the fine blanking lower die is provided with a bolt rod through hole, the upper end of the bolt rod through hole is communicated with the lower end of the bolt head through hole, and the lower end of the bolt rod through hole directly reaches the lower end of the fine blanking lower die. The upper end of the pin punching rod is connected with the punch press, and the pin punching rod can move up and down in the first guide hole, the second guide hole and the through hole of the bolt head respectively to perform one-punching and four-punching processing on the bolt head respectively.
Furthermore, the needle punching rod is divided into an upper part, a middle part and a lower part, the upper part of the needle punching rod is a drum-shaped rod with a drum-shaped cross section, the middle part of the needle punching rod is a cylindrical rod, the diameter of the cylindrical rod is smaller than the linear distance of two drum-shaped parallel lines, the lower part of the needle punching rod is a circular needle with a diameter smaller than that of the cylindrical rod, and a cross-shaped needle block is arranged between the upper end of the circular needle and the lower end of the cylindrical rod.
Further, the first guide hole is a circular hole having a diameter greater than the maximum length of the cross-section of the banjo bar and matching the diameter of the punch head.
Further, the second guide hole is a crowned hole which is matched with the crowned rod.
Further, the diameter of the through hole of the bolt head is matched with that of the cylindrical rod.
Further, the length of the bolt head through hole is larger than the sum of the length of the bolt head and the length of the round needle.
Further, the length of the second guide hole is larger than that of the cylindrical rod.
Furthermore, the diameter of the bolt head through hole of the first punching die core is smaller than that of the bolt head through hole of the fourth punching die core.
Further, the length of the bolt rod through hole is larger than that of the bolt rod.
Furthermore, the fine blanking upper die and the fine blanking lower die are both in a cylindrical shape, and the lower part of the fine blanking upper die is provided with a cylindrical shape larger than the upper part of the fine blanking upper die.
To sum up, adopt the utility model discloses a technical scheme has following beneficial effect:
the scheme solves the problems that the existing two-die four-punch mode has burrs on the cross edge, the head of the bolt is not full, and the qualified rate of finished products is not high. One of this scheme dashes, four are towards man-hour, the essence is towards the mould on, the essence is towards the lower mould, the needle dashes the stick, only one is towards man-hour, one is installed and is dashed mould benevolence, four are towards man-hour, change four and dash mould benevolence, the mould cost is saved and the time of mould changing, the work efficiency is improved, the drum-shaped hole of mould on the essence dashes, and the special structural design of the drum-shaped stick of needle towards the stick, guaranteed to dash when one, four are towards man-hour, during the cross recess punching press to the bolt head, the position is accurate, can not take place the skew, through twice cross recess punching press to the bolt head, the problem of having avoided the bolt head not full, the finished product qualification rate is not.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed to be used in the description of the embodiments of the present invention will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive faculty.
FIG. 1 is a structural view of a bolt product;
FIG. 2 is a view showing a structure of a bolt of a first punch in a conventional two-die four-punch method;
FIG. 3 is a diagram of a four-punch bolt structure in a conventional two-die four-punch manner;
fig. 4 is a sectional view of a bolt processing mold of the present invention;
fig. 5 is a top view of an upper die of the bolt processing die of the present invention;
fig. 6 is a bottom view of an upper mold of the bolt processing mold of the present invention;
fig. 7 is a top view of a lower die of the bolt processing die of the present invention;
fig. 8 is a structure view of a pin punching bar of the bolt processing mold of the present invention.
Description of reference numerals:
1-fine punching upper die, 2-fine punching lower die, 3-needle punching rod, 31-drum-shaped rod, 32-cylindrical rod, 33-circular needle, 34-cross needle block, 4-first guide hole, 5-second guide hole, 6-one punching die core or four punching die core, 7-bolt head through hole, 8-bolt rod through hole, 9-bolt head, 10-bolt rod and 11-cross groove.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 4 to 8, a bolt processing mold comprises a fine blanking upper mold 1, a fine blanking lower mold 2 located on the lower side of the fine blanking upper mold 1, a needle punching rod 3 located inside the fine blanking upper mold 1, a first guide hole 4 is arranged downwards in the center of the top of the fine blanking upper mold 1, the lower end of the first guide hole 4 is connected with a second guide hole 5, a die core or a four-die core 6 is arranged in the center of the lower portion of the fine blanking upper mold 1, the lower end of the die core or the four-die core 6 is flush with the lower end of the fine blanking upper mold 1, the center of the die core or the four-die core 6 is provided with a bolt head through hole 7, the upper end of the bolt head through hole 7 is communicated with the lower end of the second guide hole 5, and the lower end of the bolt head through hole. The center of fine blanking lower mould 2 is equipped with bolt pole through-hole 8, and the lower extreme of bolt pole through-hole 7 is communicated to the upper end of bolt pole through-hole 8, and the lower extreme of bolt pole through-hole 8 directly reaches the lower extreme of fine blanking lower mould 2. The upper end of the pin punching rod 3 is connected with a punch (not shown in the figure), the pin punching rod 3 can respectively move up and down in the first guide hole 4, the second guide hole 5 and the bolt head through hole 7, and the bolt head 9 is respectively processed by one-time punching and four-time punching.
Further, the needle punching rod 3 is divided into an upper part, a middle part and a lower part, the upper part of the needle punching rod 3 is a drum-shaped rod 31 with a drum-shaped cross section, the middle part of the needle punching rod 3 is a cylindrical rod 32, the diameter of the cylindrical rod 32 is smaller than the linear distance of two parallel lines of the drum shape, the lower part of the needle punching rod 3 is a circular needle 33 with the diameter smaller than the cylindrical rod 32, and a cross-shaped needle block 34 is arranged between the upper end of the circular needle 33 and the lower end of the cylindrical rod 32.
Further, the first guide hole 4 is a circular hole having a diameter larger than the maximum length of the cross section of the banjo bar 31 and matching the diameter of the punch head.
Further, the second guide hole 5 is a drum-shaped hole, which is matched with the drum-shaped rod 31.
Further, the diameter of the bolt head through hole 7 matches the diameter of the cylindrical rod 32.
Further, the length of the bolt head through hole 7 is larger than the sum of the length of the bolt head 9 and the length of the round needle 33.
Further, the length of the second guide hole 5 is larger than the length of the cylindrical rod 32.
Further, the diameter of the bolt head through hole 7 of one punching die core is smaller than that of the bolt head through hole 7 of the four punching die cores.
Further, the length of the bolt shank through hole 8 is greater than the length of the bolt shank 10.
Furthermore, the fine blanking upper die 1 and the fine blanking lower die 2 are both in a cylindrical shape, and the lower part of the fine blanking upper die 1 is provided with a cylindrical shape larger than the upper part of the fine blanking upper die.
To sum up, adopt the utility model discloses a technical scheme has following beneficial effect:
the scheme solves the problems that the existing two-die four-punch mode has burrs on the cross edge, the head of the bolt is not full, and the qualified rate of finished products is not high. The first punching and the fourth punching of the scheme are carried out, the fine punching upper die 1, the fine punching lower die 2 and the pin punching rod 3 are universal, only the first punching is carried out, the first punching die core is installed, the fourth punching die core is replaced in the fourth punching, the die cost and the time for replacing the die are saved, the working efficiency is improved, the drum-shaped hole (the second guide hole 5) of the fine punching upper die 1 and the drum-shaped rod 31 of the pin punching rod 3 are specially designed, the fact that the position is accurate when the cross groove 11 (shown in figure 1) of the bolt head 9 is punched in the first punching and the fourth punching is ensured, the problem that the bolt head is not full and the qualified rate of finished products is not high is avoided, and the quality of bolt products is improved.
The above-described embodiments do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the above-described embodiments should be included in the protection scope of the technical solution.

Claims (10)

1. The utility model provides a bolt mold processing which characterized in that: the fine blanking device comprises a fine blanking upper die, a fine blanking lower die and a needle punching rod, wherein the fine blanking lower die is positioned on the lower side of the fine blanking upper die, the needle punching rod is positioned in the fine blanking upper die, a first guide hole is formed in the center of the top of the fine blanking upper die downwards, the lower end of the first guide hole is connected with a second guide hole, a die core or a four-die core is arranged in the center of the lower part of the fine blanking upper die, the lower end of the die core or the four-die core is flush with the lower end of the fine blanking upper die, a bolt head through hole is formed in the center of the die core or the four-die core, the upper end of the bolt head through hole is communicated with; the center of the fine blanking lower die is provided with a bolt rod through hole, the upper end of the bolt rod through hole is communicated with the lower end of the bolt head through hole, and the lower end of the bolt rod through hole directly reaches the lower end of the fine blanking lower die; the upper end of the pin punching rod is connected with the punch press, and the pin punching rod can move up and down in the first guide hole, the second guide hole and the through hole of the bolt head respectively to perform one-punching and four-punching processing on the bolt head respectively.
2. The bolt machining die according to claim 1, wherein: the needle punching rod is divided into an upper part, a middle part and a lower part, the upper part of the needle punching rod is a drum-shaped rod with a drum-shaped cross section, the middle part of the needle punching rod is a cylindrical rod, the diameter of the cylindrical rod is smaller than the linear distance of two drum-shaped parallel lines, the lower part of the needle punching rod is a circular needle with a diameter smaller than that of the cylindrical rod, and a cross-shaped needle block is arranged between the upper end of the circular needle and the lower end of the cylindrical rod.
3. The bolt machining die according to claim 2, wherein: the first guide hole is a circular hole, the diameter of which is larger than the maximum length of the cross section of the drum-shaped rod and is matched with the diameter of the punch head.
4. The bolt machining die according to claim 3, wherein: the second guide hole is a drum-shaped hole which is matched with the drum-shaped rod.
5. The bolt machining die of claim 4, wherein: the diameter of the through hole of the bolt head is matched with that of the cylindrical rod.
6. The bolt machining die of claim 5, wherein: the length of the bolt head through hole is larger than the sum of the length of the bolt head and the length of the round needle.
7. The bolt machining die of claim 6, wherein: the length of the second guide hole is larger than that of the cylindrical rod.
8. The bolt machining die of claim 7, wherein: the diameter of the bolt head through hole of the first punching die core is smaller than that of the bolt head through hole of the fourth punching die core.
9. The bolt machining die of claim 8, wherein: the length of the bolt rod through hole is larger than that of the bolt rod.
10. The bolt machining die of claim 9, wherein: the fine blanking upper die and the fine blanking lower die are both in cylindrical shapes, and the lower part of the fine blanking upper die is provided with a cylindrical shape larger than the upper part of the fine blanking upper die.
CN201921917880.3U 2019-11-07 2019-11-07 Bolt machining die Active CN211360321U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921917880.3U CN211360321U (en) 2019-11-07 2019-11-07 Bolt machining die

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921917880.3U CN211360321U (en) 2019-11-07 2019-11-07 Bolt machining die

Publications (1)

Publication Number Publication Date
CN211360321U true CN211360321U (en) 2020-08-28

Family

ID=72168593

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921917880.3U Active CN211360321U (en) 2019-11-07 2019-11-07 Bolt machining die

Country Status (1)

Country Link
CN (1) CN211360321U (en)

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