CN220591440U - Cold heading die set of nozzle body - Google Patents
Cold heading die set of nozzle body Download PDFInfo
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- CN220591440U CN220591440U CN202322308752.1U CN202322308752U CN220591440U CN 220591440 U CN220591440 U CN 220591440U CN 202322308752 U CN202322308752 U CN 202322308752U CN 220591440 U CN220591440 U CN 220591440U
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- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000000446 fuel Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005242 forging Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 3
- 125000006850 spacer group Chemical group 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 238000003825 pressing Methods 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
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- 238000000641 cold extrusion Methods 0.000 description 1
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- 238000005553 drilling Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
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- 238000003801 milling Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model discloses a cold heading die set of a nozzle body, which is fixed on a cold heading machine and comprises a first cold heading die, a second cold heading die, a third cold heading die, a fourth cold heading die and a fifth cold heading die, wherein the first cold heading die is used for forming a first pre-heading face and a second pre-heading face on two end faces of a nozzle body blank respectively; and can realize the processing from blank to finished product at the different stations on a cold header, improve production efficiency.
Description
Technical Field
The utility model relates to the field of cold heading, in particular to a cold heading die set of a nozzle body.
Background
The fuel injection system is a key part of an automobile engine, the quality of the fuel injection system directly influences the running speed, the fuel consumption, the environmental pollution and other problems of the automobile, and the market demand of the nozzle body serving as a key part of the fuel injection system of the truck is increasing. The inner hole cavity of the nozzle body is complex in shape, the fillets of the transition parts of all sections are small, and the inner hole is provided with steel balls and springs to be in pressure fit with the nozzle body so as to achieve the opening and closing effects. At present, mechanical processing methods such as milling or drilling are often adopted for forming and processing of nozzle bodies in the market, but the mechanical processing method cannot realize the processing of small fillets of transition parts. In order to realize the production of forgings by small hot precision dies, a small number of companies adopt hot precision dies for production, but the subsequent processing allowance is large, the material utilization rate is low, the energy consumption is large, the oxidization and burning loss of blanks and the softening deformation of dies during hot forging lead the taper of inner hole cavities of forgings to exist, the fillets of transition parts of all sections to be large, the guiding performance in the die processing process to be poor, the surface finish of inner holes is poor, the use requirement of nozzle parts cannot be met, and other companies adopt cold extrusion dies for forming, but the dies are based on mechanical processing, after mechanical rough processing is finished, cold pressing and shaping are carried out through the cold pressing dies, the fillets are extruded to meet the required size, the requirements on the shape are only met by the processed stiff bodies, but the compactness of the stiff bodies are the same as those of mechanical processing, the service lives of the stiff bodies are consistent, and the micro shaping is not high in the surface finish of inner walls and the like, the oil spraying effect is influenced, and the quality is not improved greatly.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provide a cold heading die set of a nozzle body so as to solve the technical problems in the prior art.
The aim of the utility model is realized by the following technical scheme:
the utility model provides a cold-heading mould group of nozzle body, includes first cold-heading mould, second cold-heading mould, third cold-heading mould, fourth cold-heading mould, fifth cold-heading mould and sixth cold-heading mould of fixing on the cold header, first cold-heading mould is used for forming first upset face and second upset face in advance respectively with the both ends face of nozzle body blank, the second cold-heading mould is used for forming first upset hole and first upset face in advance on the first upset face, the third cold-heading mould is used for forming the second upset hole on first upset hole and forming second upset face into second upset face in advance, the fourth cold-heading mould is used for forming the third upset hole on the second upset face, the fifth cold-heading mould is used for forming the fourth upset hole on the third upset hole, the sixth cold-heading mould is used for link up fourth upset hole and second upset hole and final shaping nozzle body.
In the above summary of the utility model, further, the first cold heading die includes a first upper die and a first lower die, the first upper die includes a first upper die shell and a first upper thimble disposed in the first upper die shell, a top end surface of the first upper thimble is identical to a first pre-heading surface, the first lower die includes a first lower thimble, a first lower die shell, a first lower cushion block and a first lower core die disposed in the first lower die shell, the first lower core die is provided with a first cavity for forming a second pre-heading surface, and the first lower thimble passes through the first lower cushion block and is disposed in the first cavity.
In the above summary of the utility model, further, the second cold heading die includes a second upper die and a second lower die, the second upper die includes a second upper die shell and a second upper thimble disposed in the second upper die shell, the second upper thimble is used for forming a first heading face and a first heading hole on a first pre-heading face, the second lower die includes a second lower thimble, a second lower die shell, and a second lower die core and a second lower cushion block disposed in the second lower die shell, the second lower die core is provided with a second cavity, and the second lower thimble passes through the second lower cushion block and is disposed in the second cavity.
In the above summary of the utility model, further, the third cold heading die includes a third upper die and a third lower die, the third upper die includes a third upper die shell and a third upper thimble disposed in the third upper die shell, the third upper thimble is used for forming a second heading hole on the first heading hole, the third lower die includes a third lower thimble, a third lower die shell, a third lower die core and a third lower cushion block disposed in the third lower die shell, the third lower die core is provided with a third cavity for forming a second heading surface on the second pre-heading surface, and the third lower thimble passes through the third lower cushion block and is disposed in the third cavity.
In the above summary, further, the fourth cold heading die includes a fourth upper die and a fourth lower die, the fourth upper die includes a fourth upper die shell and a fourth upper thimble disposed in the fourth upper die shell, the fourth upper thimble is used for forming a third heading hole on the second heading surface, the fourth lower die includes a fourth lower thimble, a fourth lower die shell, and a fourth lower die core and a fourth lower cushion block disposed in the fourth lower die shell, the fourth lower die core is provided with a fourth cavity for placing a blank, and the fourth lower thimble passes through the fourth lower cushion block and can be matched with the first heading hole and the second heading hole of the nozzle body blank.
In the above summary of the utility model, further, the fifth cold heading die includes a fifth upper die and a fifth lower die, the fifth upper die includes a fifth upper die shell and a fifth upper thimble disposed in the fifth upper die shell, the fifth upper thimble is used for forming a fourth heading hole on the third heading hole, the fifth lower die includes a fifth lower thimble, a fifth lower die shell, and a fifth lower die core and a fifth lower cushion block disposed in the fifth lower die shell, the fifth lower die core is provided with a fifth cavity for placing a blank, and the fifth lower thimble passes through the fifth lower cushion block and can be matched with the first heading hole and the second heading hole of the nozzle body blank.
In the above summary of the utility model, further, the sixth cold heading die includes a sixth upper die and a sixth lower die, the sixth upper die includes a sixth upper die shell and a sixth upper thimble disposed in the sixth upper die shell, a waste tank is disposed at an end of the sixth upper thimble, the sixth lower die includes a sixth lower thimble, a sixth lower die shell, and a sixth lower die core and a sixth lower cushion block disposed in the sixth lower die shell, the sixth lower die core is provided with a sixth cavity for placing a blank, and the sixth lower thimble is used for penetrating the fourth heading hole and the second heading hole and pushing the penetrated blank into the waste tank.
The beneficial effects of the utility model are as follows:
compared with the traditional production mode of the nozzle body, the die set blank has high utilization rate, the produced nozzle body has good overall strength, and the dimensional accuracy of each part is high; and can realize the processing from blank to finished product at the different stations on a cold header, improve production efficiency.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of a first blank section according to an embodiment of the utility model;
FIG. 3 is a schematic view of a second blank section according to an embodiment of the utility model;
FIG. 4 is a schematic view of a third blank section according to an embodiment of the utility model;
FIG. 5 is a schematic view of a fourth blank section according to an embodiment of the utility model;
fig. 6 is a schematic view of a fifth blank section according to an embodiment of the present utility model
Fig. 7 is a schematic structural view of a sixth blank section according to an embodiment of the present utility model.
In the figure, 100-first cold heading die, 200-second cold heading die, 300-third cold heading die, 400-fourth cold heading die, 500-fifth cold heading die, 600-sixth cold heading die, 700-nozzle body, 101-first upper die shell, 102-first upper thimble, 103-first lower thimble, 104-first lower die shell, 105-first lower cushion, 106-first lower core die, 201-second upper die shell, 202-second upper thimble, 203-second lower thimble, 204-second lower die shell, 205-second lower cushion, 206-second lower core die, 301-third upper die shell, 302-third upper thimble, 303-third lower thimble, 304-third lower die shell, 305-third lower cushion, 306-third lower core die, 401-fourth upper die shell, 402-fourth upper ejector pin, 403-fourth lower ejector pin, 404-fourth lower die shell, 405-fourth lower spacer, 406-fourth lower core die, 501-fifth upper die shell, 502-fifth upper ejector pin, 503-fifth lower ejector pin, 504-fifth lower die shell, 505-fifth lower spacer, 506-fifth lower core die, 601-sixth upper die shell, 602-sixth upper ejector pin, 603-sixth lower ejector pin, 604-sixth lower die shell, 605-sixth lower spacer, 606-sixth lower core die, 607-scrap box, 701-first pre-upsetting face, 702-second pre-upsetting face, 703-first upsetting hole, 704-first upsetting face, 705-second upsetting hole, 705-second upsetting face, 706-second upsetting face, 707-third upsetting hole, 708-fourth upsetting holes, 709-waste materials.
Detailed Description
Other advantages and effects of the present utility model will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present utility model with reference to specific examples. The utility model may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present utility model. It should be noted that the following embodiments and features in the embodiments may be combined with each other without conflict.
It should be noted that the illustrations provided in the following embodiments merely illustrate the basic concept of the present utility model by way of illustration, and only the components related to the present utility model are shown in the drawings and are not drawn according to the number, shape and size of the components in actual implementation, and the form, number and proportion of the components in actual implementation may be arbitrarily changed, and the layout of the components may be more complicated.
Examples:
referring to fig. 1-fig. 7, a cold heading die set of a nozzle body is shown, which includes a first cold heading die 100, a second cold heading die 200, a third cold heading die 300, a fourth cold heading die 400, a fifth cold heading die 500 and a sixth cold heading die 600 fixed on a cold heading machine, wherein the first cold heading die 100 is used for forming a first pre-heading face 701 and a second pre-heading face 702 on two end faces of a nozzle body blank respectively, the second cold heading die 200 is used for forming a first heading hole 703 and a first heading face 704 on the first pre-heading face 701, the third cold heading die 300 is used for forming a second heading hole 705 on the first heading hole 703 and forming the second pre-heading face 702 into a second heading face 706, the fourth cold heading die 400 is used for forming a third heading hole 707 on the second heading face 706, the fifth cold heading die 500 is used for forming a fourth hole 708 on the third heading hole 708, and the sixth cold heading die 600 is used for penetrating the fourth cold heading die 600 and the final nozzle body 700.
Specifically, referring to fig. 1 and 2 of the drawings, the first cold heading die 100 includes a first upper die and a first lower die, the first upper die includes a first upper die shell 101 and a first upper thimble 102 disposed in the first upper die shell 101, a top end surface of the first upper thimble 102 has the same shape as a first pre-heading surface 701, the first lower die includes a first lower thimble 103, a first lower die shell 104, and a first lower cushion block 105 and a first lower core die 106 disposed in the first lower die shell 104, the first lower core die 106 is provided with a first cavity for forming a second pre-heading surface 708, the first lower thimble 103 passes through the first lower cushion block and is disposed in the first cavity, during processing, a blank is placed in the first cavity, and the blank is cold-headed into a first blank shown in fig. 2 through the first lower core die 106, the first lower thimble 103 and the first upper thimble 103.
With continued reference to fig. 1 and fig. 3, the second cold heading die 200 includes a second upper die and a second lower die, the second upper die 200 includes a second upper die shell 201 and a second upper thimble 202 disposed in the second upper die shell 201, the second upper thimble 202 is configured to form a first heading face 704 and a first heading hole 703 on a first pre-heading face 701, the second lower die includes a second lower thimble 203, a second lower die shell 204, and a second lower die core 206 and a second lower cushion block 205 disposed in the second lower die shell 204, a second cavity for placing a first blank body is disposed in the second lower die core 206, and the second lower thimble 203 passes through the second lower cushion block 205 and is disposed in the second cavity, during the cold heading process of the die, the first blank body is disposed in the second cavity, and the second blank body is formed on the first pre-heading face 703 and the first heading face 704 by the second upper thimble 202, so as to obtain a second blank body.
With continued reference to fig. 1 and fig. 4, the third cold heading die 300 includes a third upper die and a third lower die, the third upper die 300 includes a third upper die shell 301 and a third upper thimble 302 disposed in the third upper die shell 301, the third upper thimble 302 is used to form a second heading hole 705 in the first heading hole 703, the third lower die includes a third lower thimble 303, a third lower die shell 304, and a third lower die core 306 and a third lower cushion block 305 disposed in the third lower die shell 304, the third lower die core 306 is provided with a third cavity for forming a second heading face 706 on the second pre-heading face 702, the third lower thimble 303 passes through the third lower cushion block 305 and is disposed in the third cavity, during the cold heading, the second blank section is disposed in the third cavity, the second heading hole 705 is formed in the first heading hole 703 by the third upper thimble 302, and the second pre-heading face is formed into the second pre-heading face 706 by the third cavity.
With continued reference to fig. 1 and 5, the fourth cold heading die 400 includes a fourth upper die and a fourth lower die, the fourth upper die includes a fourth upper die shell 401 and a fourth upper thimble 402 disposed in the fourth upper die shell 401, the fourth upper thimble 402 is used for forming a third heading hole 707 on the second heading face 706, the fourth lower die includes a fourth lower thimble 403, a fourth lower die shell 404, and a fourth lower mold core 406 and a fourth lower cushion block 405 disposed in the fourth lower die shell 404, the fourth lower mold core 405 is provided with a fourth cavity for placing a blank, the fourth lower thimble 403 passes through the fourth lower cushion block 405 and can be matched with the first heading hole 703 and the second heading hole 705 of the nozzle body blank, during the cold heading process, a third blank section bar is placed in the fourth cavity, the fourth lower thimble 403 is inserted and matched in the first heading hole 703 and the second heading hole 705, and a fourth blank section bar is formed on the second face 706 by the fourth upper thimble 402.
With continued reference to fig. 1 and 6, the fifth cold heading die 500 includes a fifth upper die and a fifth lower die, the fifth upper die includes a fifth upper die shell 501 and a fifth upper thimble 502 disposed in the fifth upper die shell 501, the fifth upper thimble 502 is used to form a fourth heading hole 708 in the third heading hole 707, the fifth lower die includes a fifth lower thimble 503, a fifth lower die shell 504, and a fifth lower die core 506 and a fifth lower cushion block 505 disposed in the fifth lower die shell 504, the fifth lower die core 506 is provided with a fifth cavity for placing a blank, the fifth lower thimble 503 passes through the fifth lower cushion block 506 and can be matched with the first heading hole 703 and the second heading hole 705 of the nozzle body blank, during the cold heading process, the fourth blank section is continuously placed in the fifth cavity, the fifth lower thimble 503 is inserted and matched in the first heading hole 703 and the second heading hole 705, and the fifth blank section is formed in the third hole 707 by the fifth upper thimble 502.
With continued reference to fig. 1 and 7, the sixth cold heading die 600 includes a sixth upper die and a sixth lower die, the sixth upper die includes a sixth upper die shell 601 and a sixth upper thimble 602 disposed in the sixth upper die shell 601, a waste groove 607 is disposed at an end of the sixth upper thimble 602, the sixth lower die includes a sixth lower thimble 603, a sixth lower die shell 604, and a sixth lower die core 606 and a sixth lower cushion block 605 disposed in the sixth lower die shell 604, the sixth lower die core 606 is provided with a sixth cavity for placing a blank, the sixth lower thimble 603 needle is used for penetrating the fourth heading hole 708 and the second heading hole 705 and pushing the waste 709 into the waste groove 607, during the cold heading, the fifth blank section is continuously poured into the sixth cavity, the sixth lower thimble 603 is inserted into the first heading hole 703 and the second heading hole 705, and the second hole 705 is penetrated by the sixth lower thimble 603, so that the second hole 705 penetrates the fourth heading hole 708 and the fourth heading hole 603, and the waste 709 are pushed into the waste groove 607, and the waste groove 709 is obtained.
The foregoing examples merely illustrate specific embodiments of the utility model, which are described in greater detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model.
Claims (7)
1. The cold heading die set of the nozzle body is characterized by comprising a first cold heading die, a second cold heading die, a third cold heading die, a fourth cold heading die, a fifth cold heading die and a sixth cold heading die which are fixed on a cold heading machine, wherein the first cold heading die is used for forming a first pre-heading face and a second pre-heading face on two end faces of a nozzle body blank respectively, the second cold heading die is used for forming a first heading hole and a first heading face on the first pre-heading face, the third cold heading die is used for forming a second heading hole on the first heading hole and forming the second pre-heading face into a second heading face, the fourth cold heading die is used for forming a third heading hole on the second heading face, the fifth cold heading die is used for forming a fourth hole on the third heading hole, and the sixth cold heading die is used for penetrating the fourth hole and the second heading hole and finally forming the nozzle body.
2. The cold heading die set of a nozzle body according to claim 1, wherein the first cold heading die comprises a first upper die and a first lower die, the first upper die comprises a first upper die shell and a first upper thimble arranged in the first upper die shell, the punching top end surface of the first upper thimble is identical to the first pre-heading surface, the first lower die comprises a first lower thimble, a first lower die shell, a first lower cushion block and a first lower core die arranged in the first lower die shell, the first lower core die is provided with a first cavity for forming a second pre-heading surface, and the first lower thimble penetrates through the first lower cushion block and is arranged in the first cavity.
3. The cold heading die set of a nozzle body according to claim 2, wherein the second cold heading die comprises a second upper die and a second lower die, the second upper die comprises a second upper die shell and a second upper thimble arranged in the second upper die shell, the second upper thimble is used for forming a first heading face and a first heading hole on a first pre-heading face, the second lower die comprises a second lower thimble, a second lower die shell, a second lower die core and a second lower cushion block, the second lower die core is arranged in the second lower die shell, a second cavity is arranged in the second lower die core, and the second lower thimble penetrates through the second lower cushion block and is arranged in the second cavity.
4. A cold heading die set for a nozzle body according to claim 3, wherein the third cold heading die comprises a third upper die and a third lower die, the third upper die comprises a third upper die shell and a third upper thimble arranged in the third upper die shell, the third upper thimble is used for forming a second heading hole on the first heading hole, the third lower die comprises a third lower thimble, a third lower die shell, a third lower die core and a third lower cushion block arranged in the third lower die shell, the third lower die core is provided with a third die cavity for forming a second heading face on a second pre-heading face, and the third lower thimble penetrates through the third lower cushion block and is arranged in the third die cavity.
5. The cold heading die set of a nozzle body according to claim 4, wherein the fourth cold heading die comprises a fourth upper die and a fourth lower die, the fourth upper die comprises a fourth upper die shell and a fourth upper thimble arranged in the fourth upper die shell, the fourth upper thimble is used for forming a third heading hole on the second heading face, the fourth lower die comprises a fourth lower thimble, a fourth lower die shell, a fourth lower die core and a fourth lower cushion block arranged in the fourth lower die shell, the fourth lower die core is provided with a fourth die cavity for placing a blank, and the fourth lower thimble penetrates through the fourth lower cushion block and can be matched with the first heading hole and the second heading hole of the nozzle body blank.
6. The cold heading die set of a nozzle body according to claim 5, wherein the fifth cold heading die comprises a fifth upper die and a fifth lower die, the fifth upper die comprises a fifth upper die shell and a fifth upper thimble arranged in the fifth upper die shell, the fifth upper thimble is used for forming a fourth heading hole on a third heading hole, the fifth lower die comprises a fifth lower thimble, a fifth lower die shell, a fifth lower die core and a fifth lower cushion block arranged in the fifth lower die shell, the fifth lower die core is provided with a fifth die cavity for placing a blank, and the fifth lower thimble penetrates through the fifth lower cushion block and can be matched with the first heading hole and the second heading hole of the nozzle body blank.
7. The cold heading die set of a nozzle body according to claim 6, wherein the sixth cold heading die comprises a sixth upper die and a sixth lower die, the sixth upper die comprises a sixth upper die shell and a sixth upper thimble arranged in the sixth upper die shell, a waste groove is arranged at the end part of the sixth upper thimble, the sixth lower die comprises a sixth lower thimble, a sixth lower die shell, a sixth lower die core and a sixth lower cushion block arranged in the sixth lower die shell, the sixth lower die core is provided with a sixth die cavity for placing a blank, and the sixth lower thimble is used for penetrating a fourth heading hole with the second heading hole and pushing waste after penetrating into the waste groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322308752.1U CN220591440U (en) | 2023-08-25 | 2023-08-25 | Cold heading die set of nozzle body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322308752.1U CN220591440U (en) | 2023-08-25 | 2023-08-25 | Cold heading die set of nozzle body |
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| Publication Number | Publication Date |
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| CN220591440U true CN220591440U (en) | 2024-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322308752.1U Active CN220591440U (en) | 2023-08-25 | 2023-08-25 | Cold heading die set of nozzle body |
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| CN (1) | CN220591440U (en) |
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2023
- 2023-08-25 CN CN202322308752.1U patent/CN220591440U/en active Active
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