CN219786453U - Square head bolt cold heading assembling die - Google Patents
Square head bolt cold heading assembling die Download PDFInfo
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- CN219786453U CN219786453U CN202320442783.3U CN202320442783U CN219786453U CN 219786453 U CN219786453 U CN 219786453U CN 202320442783 U CN202320442783 U CN 202320442783U CN 219786453 U CN219786453 U CN 219786453U
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- 238000004080 punching Methods 0.000 claims abstract description 34
- 238000000034 method Methods 0.000 claims description 11
- 239000002131 composite material Substances 0.000 claims description 5
- 238000010273 cold forging Methods 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000000465 moulding Methods 0.000 abstract description 12
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 5
- 238000005242 forging Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
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Abstract
The utility model relates to a square bolt cold heading combined die which comprises a first die, a second die, a third die, a fourth die and a fifth die; wherein the first die comprises a first die and a first molding core; the second die comprises a second stamping die, a second stamping needle and a second forming die core; the third die comprises a third punching needle and a third forming die core; the fourth die comprises a fourth stamping die and a fourth forming die core; the fifth die includes a fifth punching die and a fifth forming die. The square bolt cold heading combined die disclosed by the utility model has the advantages that the cold heading forming can save materials, the productivity in one day can be improved by more than 10 times, the precision of the cold heading die is very high, the product stability is good, and the manufacturing cost is greatly reduced; the cold heading is a flat position and square head formed by one-step molding of the mold, the productivity of one day is about 2 ten thousand, the dimension is stable, and the purchasing cost and the reject ratio of customers are greatly reduced.
Description
Technical Field
The utility model relates to the technical field of bolt forming, in particular to a square head bolt cold heading combined die.
Background
Bolts are used as a fastener and are widely applied to daily production and living.
At present, most of bolts on the market are processed by using a hot forging die, and part of special nonstandard bolts are required to be processed by machining, while hot forging processing of common bolts is performed with cold shrinkage during cooling, and the thickness structures of the head part and the screw rod are different, so that the accuracy is reduced after cooling, the accuracy is easy to be problematic, the surface smoothness is poor, and meanwhile, the machining mode is low in efficiency. In addition, the processing mode also needs to be used for stamping, and the stamping has the problems of material waste, slow processing, low productivity, rough appearance, unstable size and the like.
Therefore, there is a need for a mold capable of improving a hot forging die for bolt production molding to achieve rapid production of bolts.
Disclosure of Invention
Therefore, the utility model aims to solve the technical problems that in the prior art, bars are firstly cut, hot piers are used, flat positions of milling machines are used for piers, square heads are cut by a stamping process, the process is more, the productivity is low, and the forming is difficult because of more bolt heads.
In order to solve the technical problems, the utility model provides a square bolt cold heading combined die which comprises a first die, a second die, a third die, a fourth die and a fifth die, wherein the first die, the second die, the third die, the fourth die and the fifth die are all arranged on a cold forging machine, and the first die, the second die, the third die, the fourth die and the fifth die are sequentially arranged according to a bolt forming procedure; the first die comprises a first stamping die and a first forming die core, and the first stamping die stamping blank forms the size of the line diameter of the bolt in the first forming die core; the second die comprises a second stamping die, a second stamping needle and a second forming die core, the second stamping needle stamping blank forms a bolt head in the second stamping die, and the second stamping needle stamping blank forms a conical part of the bolt in the second forming die core; the third die comprises a third punching needle and a third forming die core, and the third punching needle punches a blank to form a conical flat position in the third forming die core; the fourth die comprises a fourth stamping die and a fourth forming die core, and square heads of bolts are stamped and formed in the fourth stamping die and the fourth forming die core; the fifth die comprises a fifth punching die and a fifth forming die, and the fifth punching die is used for die cutting of the head part of the bolt in the fifth forming die.
In one embodiment of the present utility model, the first mold further includes a first male mold, a first female mold, a first inner mold second and a first ejector pin, one end of the first punch is disposed in the first male mold, the first inner mold first and the first inner mold second are both disposed in the first female mold, the first inner mold first is located at a side of the first inner mold second close to the first male mold, the first forming core is disposed in the first inner mold first, and one end of the first ejector pin penetrates through the first inner mold second and extends into the first forming core.
In one embodiment of the present utility model, the second mold further includes a second male mold, a second female mold, a second first inner mold, a second inner mold, a second third inner mold, a second fourth inner mold, and a second ejector pin, wherein the second punch die and the second punch pin are both disposed in the second male mold, and one end of the second punch pin penetrates the second punch die, the first inner mold, the second inner mold, and the second third inner mold are all disposed in the second female mold, the second fourth inner mold is disposed in the first inner mold and the second inner mold, the second molding core is disposed in the first inner mold and the fourth inner mold, and one end of the second ejector pin penetrates the fourth inner mold and extends into the second molding core.
In one embodiment of the present utility model, the third mold further includes a third male mold, a third female mold, a third first inner mold, a third second inner mold, a third inner mold, a third fourth inner mold, and a third ejector pin, wherein one end of the third punch pin is disposed in the third male mold, the third first inner mold, the third second inner mold, and the third inner mold are disposed in the third female mold, the third fourth inner mold is disposed in the third first inner mold and the third second inner mold, the third forming mold core is disposed in the third first inner mold and the third fourth inner mold, and one end of the third ejector pin penetrates through the third fourth inner mold and extends into the third forming mold core.
In one embodiment of the present utility model, the fourth mold further includes a fourth male mold, a fourth female mold, a fourth first inner mold, a fourth second inner mold, a fourth third inner mold, a fourth inner mold and a fourth ejector pin, wherein the fourth die is disposed on an end portion of the fourth male mold close to the fourth female mold, the fourth first inner mold, the fourth second inner mold and the fourth third inner mold are disposed in the fourth female mold, the fourth inner mold is disposed in the fourth first inner mold and the fourth second inner mold, the fourth forming mold is disposed in the fourth first inner mold and the fourth inner mold, and one end of the fourth ejector pin penetrates through the fourth first inner mold and extends into the fourth forming mold core.
In one embodiment of the present utility model, the fifth mold further includes a fifth male mold, a fifth female mold, a fifth inner mold, and a fifth ejector pin, wherein the fifth punching mold is disposed on an end of the fifth male mold close to the fifth female mold, the fifth inner mold is disposed on an end of the fifth female mold close to the fifth male mold, the fifth forming core is disposed on the fifth inner mold, the fifth ejector pin is disposed on the fifth female mold, and one end of the fifth ejector pin extends into the fifth forming core.
In one embodiment of the present utility model, the second die is provided with a first conical head forming cavity, and the second die core is provided with a second conical head forming cavity.
In one embodiment of the present utility model, a tapered flat forming cavity is provided in the third forming mold core.
In one embodiment of the present utility model, the fourth die is provided with a square head forming cavity.
In one embodiment of the present utility model, a punching opening is provided in the fifth punching die.
Compared with the prior art, the technical scheme of the utility model has the following advantages:
1. saving materials and energy consumption. (milling is to mill small with large material, producing waste).
2. The productivity is improved, and the mass production can be realized. (the capacity of 10 hot piers can only be used for the capacity of one cold pier).
3. The stability of the product size is improved. (Hot piers are relatively coarse and original manufacturing processes, which are only suitable for processing coarse products).
Drawings
In order that the utility model may be more readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof that are illustrated in the appended drawings, in which
FIG. 1 is a schematic structural view of a first die of a square bolt cold heading composite die of the utility model;
FIG. 2 is a schematic structural view of a second die of the square bolt cold heading composite die of the utility model;
FIG. 3 is a schematic structural view of a third die of the square bolt cold heading composite die of the utility model;
FIG. 4 is a schematic structural view of a fourth die of the square bolt cold heading composite die of the utility model;
fig. 5 is a schematic structural view of a fifth die of the square bolt cold heading assembling die of the utility model.
Description of the specification reference numerals: first die 1, first die 11, first forming core 12, first male die 13, first female die 14, first internal die 15, first internal die second 16, first ejector pin 17, second die 2, second die 21, second punch pin 22, second forming core 23, second male die 24, second female die 25, second internal die first 26, second internal die second 27, second internal die third 28, second internal die fourth 29, second ejector pin 210, third die 3, third punch pin 31, third forming core 32, third male die 33, third female die 34, third internal die first 35, third internal die second 36, third internal die third 37, third internal die fourth 38, third ejector pin 39, fourth die 4, fourth ejector pin 41, fourth forming core 42, fourth male die 43, fourth female die 44, fourth internal die first 45, fourth internal die second 46, fourth internal die third 47, fourth internal die fourth 48, fourth ejector pin 49, fifth internal die 5, fifth internal die 51, fifth ejector pin 52, fifth internal die 52, fifth ejector pin 54, fifth internal die 54, fifth ejector pin 55.
Detailed Description
The present utility model will be further described with reference to the accompanying drawings and specific examples, which are not intended to be limiting, so that those skilled in the art will better understand the utility model and practice it.
Referring to fig. 1 to 5, the square bolt cold heading combined die comprises a first die 1, a second die 2, a third die 3, a fourth die 4 and a fifth die 5, wherein the first die 1, the second die 2, the third die 3, the fourth die 4 and the fifth die 5 are all arranged on a cold forging machine, and the first die 1, the second die 2, the third die 3, the fourth die 4 and the fifth die 5 are sequentially arranged according to a bolt forming process. The combined die comprises a first die 1, a second die 2, a third die 3, a fourth die 4 and a fifth die 5 for cold heading forming of the head of a bolt, wherein the first die is strong and is small in beam diameter, the second die is preformed into a head shape and a lower cone shape, the third die is wrapped and cut into a cone-shaped flat position, the fourth die is punched into a head shape larger than the diagonal of the square, and the fifth die is cut into the square. The problems that the traditional third mould beam conical mould is poor in service life and large in loss, and the traditional trimming square and rod diameter of the fifth mould are deformed are improved.
The square bolt cold heading combined die disclosed by the utility model has the advantages that the cold heading forming can save materials, the productivity of one day can be improved by more than 10 times, the precision of the cold heading die is very high, the jumping size of a product is within 10 pieces, the product stability is good, the manufacturing cost is greatly reduced, the saved cost can be saved to customers, and the cost is reduced for the customers; the cold heading is a flat position and square head formed by one-step molding of the mold, the productivity of one day is about 2 ten thousand, the dimension is stable, and the purchasing cost and the reject ratio of customers are greatly reduced.
Referring to fig. 1, the first die 1 comprises a first punching die 11 and a first forming core 12, wherein the first punching die 11 punches a blank to form the size of the bolt line diameter in the first forming core 12; the first die 1 further comprises a first male die 13, a first female die 14, a first internal die 15, a first internal die second 16 and a first ejector pin 17, one end of the first die 11 is arranged in the first male die 13, the first internal die 15 and the first internal die second 16 are both arranged in the first female die 14, the first internal die 15 is positioned on one side, close to the first male die 13, of the first internal die second 16, the first forming die core 12 is arranged in the first internal die first 15, and one end of the first ejector pin 17 penetrates through the first internal die second 16 and stretches into the first forming die core 12. The first punch 11 and the first ejector pin 17 are positioned on the same straight line, in the punching process, the first punch 11 and the first forming core 12 are opposite to each other, the first punch 11 stretches into the first forming core 12, the blank is formed into the required shape and size of the bolt in the first forming core 12, after the first punch 11 is withdrawn, the formed blank is ejected from the first forming core 12 through the first ejector pin 17, and in the process, the blank is preformed for the first time.
Referring to fig. 2, the second die 2 includes a second die 21, a second punch pin 22, and a second molding die core 23, the second punch pin 22 punches a blank to mold a bolt head in the second die 21, and the second punch pin 22 punches a blank to mold a tapered portion of a bolt in the second molding die core 23; the second mold 2 further comprises a second male mold 24, a second female mold 25, a first second inner mold 26, a second inner mold 27, a third second inner mold 28, a fourth second inner mold 29 and a second ejector pin 210, wherein the second punch 21 and the second punch pin 22 are arranged in the second male mold 24, one end of the second punch pin 22 penetrates through the second punch 21, the first second inner mold 26, the second inner mold 27 and the third second inner mold 28 are arranged in the second female mold 25, the fourth second inner mold 29 is arranged in the first second inner mold 26 and the second inner mold 27, the second molding core 23 is arranged in the first second inner mold 26 and the fourth second inner mold 29, and one end of the second ejector pin 210 penetrates through the fourth second inner mold 29 and stretches into the second molding core 23. The second die 21 is provided with a first conical head forming cavity 211, and the second die core 23 is provided with a second conical head forming cavity 231. The second male die 24 and the second internal die three 28 are arranged opposite to each other, the second punch pin 22 and the second thimble 210 are positioned on the same straight line, in the stamping process, the second punch pin 22 punches blanks in the second punch pin 21 and the second forming die core 23 together, the blanks are formed into the required shapes in the first conical head forming cavity 211 and the second conical head forming cavity 231, and after the die is opened, the second thimble 210 ejects the blanks preformed for the second time.
Referring to fig. 3, the third die 3 includes a third punch pin 31 and a third forming die core 32, where the third punch pin 31 punches a blank to form a conical flat position in the third forming die core 32; the third mold 3 further comprises a third male mold 33, a third female mold 34, a first third inner mold 35, a second third inner mold 36, a third inner mold 37, a fourth third inner mold 38 and a third thimble 39, one end of the third punching needle 31 is arranged in the third male mold 33, the first third inner mold 35, the second third inner mold 36 and the third inner mold 37 are all arranged in the third female mold 34, the fourth third inner mold 38 is arranged in the first third inner mold 35 and the second third inner mold 36, the third forming mold core 32 is arranged in the first third inner mold 35 and the fourth third inner mold 38, and one end of the third thimble 39 penetrates through the fourth third inner mold 38 and stretches into the third forming mold core 32. A conical flat forming cavity 321 is arranged in the third forming die 32. The third male die 33 and the third female die 34 are arranged opposite to each other, the third punch needle 31 and the third ejector pin 39 are positioned on the same straight line, in the process of punching, the third punch needle 31 stretches into the third forming die core 32, a conical part is formed in the conical flat forming cavity 321 by the second preformed blank, and after the die is opened, the third ejector pin 39 ejects the third preformed blank.
Referring to fig. 4, the fourth die 4 includes a fourth die 41 and a fourth forming die 42, and the fourth die 41 and the fourth forming die 42 are internally press-formed with a square head of a bolt; the fourth die 4 further comprises a fourth male die 43, a fourth female die 44, a fourth first internal die 45, a fourth second internal die 46, a fourth third internal die 47, a fourth internal die 48 and a fourth thimble 49, the fourth die 41 is arranged at the end of the fourth male die 43 close to the fourth female die 44, the fourth first internal die 45, the fourth second internal die 46 and the fourth third internal die 47 are all arranged in the fourth female die 44, the fourth internal die 48 is arranged in the fourth first internal die 45 and the fourth second internal die 46, the fourth molding die core 42 is arranged in the fourth first internal die 45 and the fourth internal die fourth 48, and one end of the fourth thimble 49 penetrates through the fourth first internal die 45 and stretches into the fourth molding die core 42. The fourth die 41 is provided with a square head forming cavity 411. The fourth male die 43 and the fourth female die 44 are arranged opposite to each other, the fourth stamping die 41 and the fourth forming die core 42 are arranged opposite to each other, and when the dies are closed, the fourth stamping die 41 stamps the blank in the fourth forming die core 42, so that the blank is ejected out by the fourth ejector pin 49 after the dies are opened in the head shapes required by the forming bolts in the square head forming cavity 411 and the fourth forming die core 42, and the process is fourth preforming.
Referring to fig. 5, the fifth die 5 includes a fifth punching die 51 and a fifth forming die 52, and the fifth punching die 51 performs die cutting of the head of the bolt in the fifth forming die 52. The fifth die 5 further comprises a fifth male die 53, a fifth female die 54, a fifth inner die 55 and a fifth ejector pin 56, the fifth punching die 51 is arranged at the end of the fifth male die 53 close to the fifth female die 54, the fifth inner die 55 is arranged at the end of the fifth female die 54 close to the fifth male die 53, the fifth forming die 52 is arranged on the fifth inner die 55, and the fifth ejector pin 56 is arranged on the fifth female die 54. A punching slit 511 is provided in the fifth punching die 51. The fifth male die 53 and the fifth female die 54 are arranged opposite to each other, the fifth punching die 51 and the fifth forming die 52 are arranged opposite to each other, the forming head of the bolt is positioned outside the fifth forming die 52, the fifth punching die 51 moves toward the fifth forming die 52, the head of the bolt is punched through the punching opening 511, and after the die is opened, the fifth ejector pin 56 ejects the formed bolt.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations and modifications of the present utility model will be apparent to those of ordinary skill in the art in light of the foregoing description. It is not necessary here nor is it exhaustive of all embodiments. And obvious variations or modifications thereof are contemplated as falling within the scope of the present utility model.
Claims (10)
1. The utility model provides a square head bolt cold heading assembling die which characterized in that: the method comprises a first die, a second die, a third die, a fourth die and a fifth die, wherein the first die, the second die, the third die, the fourth die and the fifth die are all arranged on a cold forging machine, and the first die, the second die, the third die, the fourth die and the fifth die are sequentially arranged according to a bolt forming procedure;
the first die comprises a first stamping die and a first forming die core, and the first stamping die stamping blank forms the size of the line diameter of the bolt in the first forming die core;
the second die comprises a second stamping die, a second stamping needle and a second forming die core, the second stamping needle stamping blank forms a bolt head in the second stamping die, and the second stamping needle stamping blank forms a conical part of the bolt in the second forming die core;
the third die comprises a third punching needle and a third forming die core, and the third punching needle punches a blank to form a conical flat position in the third forming die core;
the fourth die comprises a fourth stamping die and a fourth forming die core, and square heads of bolts are stamped and formed in the fourth stamping die and the fourth forming die core;
the fifth die comprises a fifth punching die and a fifth forming die, and the fifth punching die is used for die cutting of the head part of the bolt in the fifth forming die.
2. The square bolt cold heading assembling die according to claim 1, wherein: the first die further comprises a first male die, a first female die, a first inner die, a second inner die and a first thimble, one end of the first die is arranged in the first male die, the first inner die and the second inner die are both arranged in the first female die, the first inner die is located at one side, close to the first male die, of the second inner die, the first forming die is arranged in the first inner die, and one end of the first thimble penetrates through the second inner die and stretches into the first forming die.
3. The square bolt cold heading assembling die according to claim 1, wherein: the second die further comprises a second male die, a second female die, a first second inner die, a second inner die, a third second inner die, a fourth second inner die and a second ejector pin, wherein the second punching die and the second punching needle are arranged in the second male die, one end of the second punching needle penetrates through the second punching die, the first second inner die, the second inner die and the third inner die are arranged in the second female die, the fourth second inner die is arranged in the first second inner die and the second inner die, the second forming die core is arranged in the first second inner die and the fourth second inner die, and one end of the second ejector pin penetrates through the fourth second inner die and stretches into the second forming die core.
4. The square bolt cold heading assembling die according to claim 1, wherein: the third die further comprises a third male die, a third female die, a first third inner die, a second third inner die, a third inner die, a fourth third inner die and a third thimble, one end of the third punching needle is arranged in the third male die, the first third inner die, the second third inner die and the third inner die are all arranged in the third female die, the fourth third inner die is arranged in the first third inner die and the second third inner die, the third forming die core is arranged in the first third inner die and the fourth third inner die, and one end of the third thimble penetrates through the fourth third inner die and stretches into the third forming die core.
5. The square bolt cold heading assembling die according to claim 1, wherein: the fourth die further comprises a fourth male die, a fourth female die, a fourth first internal die, a fourth second internal die, a fourth third internal die, a fourth internal die and a fourth thimble, the fourth stamping die is arranged on the end portion, close to the fourth female die, of the fourth male die, the fourth first internal die, the fourth second internal die and the fourth internal die are all arranged in the fourth female die, the fourth internal die is arranged in the fourth first internal die and the fourth second internal die, the fourth forming die core is arranged in the fourth first internal die and the fourth internal die, and one end of the fourth thimble penetrates through the fourth first internal die and stretches into the fourth forming die core.
6. The square bolt cold heading assembling die according to claim 1, wherein: the fifth die further comprises a fifth male die, a fifth female die, a fifth inner die and a fifth ejector pin, the fifth punching die is arranged at the end of the fifth male die, which is close to the fifth female die, the fifth inner die is arranged at the end of the fifth female die, which is close to the fifth male die, the fifth forming die core is arranged on the fifth inner die, the fifth ejector pin is arranged on the fifth female die, and one end of the fifth ejector pin stretches into the fifth forming die core.
7. A lag bolt cold heading composite mold according to claim 1 or 3, characterized in that: the second die is provided with a first conical head forming cavity, and the second die core is provided with a second conical head forming cavity.
8. The square bolt cold heading assembling die according to claim 1 or 4, wherein: and a conical flat forming cavity is arranged in the third forming mold core.
9. The square bolt cold heading assembling die according to claim 1 or 5, wherein: and the fourth stamping die is provided with a square head forming cavity I.
10. The square bolt cold heading assembling die according to claim 1 or 6, wherein: and a punching opening is arranged in the fifth punching die.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320442783.3U CN219786453U (en) | 2023-03-10 | 2023-03-10 | Square head bolt cold heading assembling die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320442783.3U CN219786453U (en) | 2023-03-10 | 2023-03-10 | Square head bolt cold heading assembling die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219786453U true CN219786453U (en) | 2023-10-03 |
Family
ID=88184257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320442783.3U Active CN219786453U (en) | 2023-03-10 | 2023-03-10 | Square head bolt cold heading assembling die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219786453U (en) |
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2023
- 2023-03-10 CN CN202320442783.3U patent/CN219786453U/en active Active
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