CN215391640U - Cold-drawing die of seamless steel tube for automobile longitudinal thrust rod - Google Patents
Cold-drawing die of seamless steel tube for automobile longitudinal thrust rod Download PDFInfo
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- CN215391640U CN215391640U CN202121834551.XU CN202121834551U CN215391640U CN 215391640 U CN215391640 U CN 215391640U CN 202121834551 U CN202121834551 U CN 202121834551U CN 215391640 U CN215391640 U CN 215391640U
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Abstract
The technical scheme of the utility model is realized as follows: the utility model provides a cold drawing mould of seamless steel pipe for car longitudinal thrust pole which characterized in that: comprises an outer die and a core rod; the cold-drawing forming hole is formed in the outer die and penetrates through the outer die; the cold-drawing forming hole comprises a reducing section, a reducing wall section and a sizing section which are sequentially connected; the reducing section and the reducing wall section are both frustum-shaped holes gradually shrinking to the sizing section, the taper of the reducing section is greater than that of the reducing wall section, and the sizing section is a cylindrical hole; further comprising: the lubricating channel is arranged on the outer die and communicated with the sizing section; the intermediate piece is sleeved on the core rod; the adsorption block is arranged to be a flexible structure, sleeved on the core rod and positioned in the diameter reducing section; the intermediate piece is detachably connected with the core rod, and the intermediate piece is positioned in the sizing section; the utility model has the beneficial effects that: long service life and stable forming.
Description
Technical Field
The utility model relates to the technical field of cold-drawing dies, in particular to a cold-drawing die for a seamless steel pipe for an automobile longitudinal thrust rod.
Background
Cold drawing is a processing technology of materials, and for metal materials, cold drawing refers to drawing under the condition that the materials are at normal temperature in order to achieve a certain shape and a certain mechanical property. Compared with hot forming, the cold-drawn product has the advantages of high dimensional precision and good surface smoothness; the automobile longitudinal thrust rod is usually applied to a double-axle balanced suspension of an automobile, and is used for improving the grounding property of automobile tires and ensuring the load balance between two or more axles under various working conditions. The longitudinal thrust rod is mainly used for transmitting longitudinal load and torque, and front and rear two-stage power transmission is ensured; when the automobile longitudinal thrust rod is produced, a cold-drawing die is required to be used for molding, for example, the cold-drawing die disclosed in the publication No. CN208728336U can be used for processing the automobile longitudinal thrust rod with better quality; but the stress is not uniform enough, so that the service life of the lubricating oil is not long, and the lubricating oil cannot be added.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model aims to provide a cold-drawing die for a seamless steel tube for an automobile longitudinal thrust rod, which is used for solving the technical problems in the background technology.
The technical scheme of the utility model is realized as follows: the utility model provides a cold drawing mould of seamless steel pipe for car longitudinal thrust pole which characterized in that: comprises an outer die and a core rod; the cold-drawing forming hole is formed in the outer die and penetrates through the outer die; the cold-drawing forming hole comprises a reducing section, a reducing wall section and a sizing section which are sequentially connected; the reducing section and the reducing wall section are both frustum-shaped holes gradually shrinking to the sizing section, the taper of the reducing section is greater than that of the reducing wall section, and the sizing section is a cylindrical hole; further comprising: the lubricating channel is arranged on the outer die and communicated with the sizing section; the intermediate piece is sleeved on the core rod; the adsorption block is arranged to be a flexible structure, sleeved on the core rod and positioned in the diameter reducing section; the intermediate piece is detachably connected with the core rod, the intermediate piece is positioned in the sizing section, the diameter of the intermediate piece is larger than that of the core rod, one side of the intermediate piece, facing the reduced wall section, is provided with an inclined surface, and the lubricating channel is used for conveying lubricating liquid to the sizing section.
Preferably: the lubricating channel comprises a buffer cavity, is arranged in the outer die and is arranged around the cold-drawing forming hole; the overflow holes are arranged in a plurality of numbers, are uniformly arranged around the circumference of the cold-drawing forming hole and are used for communicating the buffer cavity with the sizing section; an upper feed hole; a lower drainage hole; and the upper liquid inlet and the lower liquid outlet are respectively communicated with the buffer cavity and the outside from the upper end and the lower end of the outer die.
Preferably: the intermediate piece is in threaded connection with the core rod and is fixed through a locking nut.
Preferably: still be provided with a plurality of design ribs on the intermediate member outer wall, design rib and intermediate member integrated into one piece.
Preferably: the outer die is also provided with a scraper mechanism, the scraper mechanism comprises a mounting seat, and the mounting seat is fixed at one end of the sizing section, which is far away from the reducing wall section, on the outer die; the mounting groove is formed in the mounting seat; and the scraper is arranged in the mounting groove and used for processing the outer wall of the steel pipe.
The utility model has the beneficial effects that: through the arrangement of the adsorption blocks, the inner wall of the steel pipe is adsorbed before the steel pipe is formed, impurities on the steel pipe are removed, and the forming stability is improved; through the arrangement of the intermediate piece, stress can be applied to the mandrel, so that the outer die and the intermediate piece are stressed together during molding, the stress is uniform, the stability is improved, the intermediate pieces with different diameters can be replaced, and the gap between the intermediate piece and the outer die is adjusted, so that the mandrel can be used for processing steel pipes with different thicknesses; through the setting of lubricated passageway, when the shaping, add lubricated liquid to the sizing section, improve the shaping stability, lubricated liquid enters into the cushion chamber from last inlet opening then from overflow hole dispersion entering sizing section, guarantee the homogeneity and the stability that lubricated liquid got into, simultaneously unnecessary lubricated liquid flows downwards again through overflow hole entering drainage hole discharge down, carry out recycle, avoid the processing environment to receive the pollution of a large amount of lubricated liquid, guarantee the sufficiency that lubricated liquid added, further improve the shaping temperature nature.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic diagram of a lubrication channel according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of a sizing rib according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of the construction of a doctor mechanism according to an embodiment of the utility model;
the examples in the figure are: the production process comprises the following steps of 1 outer die, 2 core rods, 3 reducing sections, 4 reducing sections, 5 sizing sections, 6 intermediate parts, 7 adsorption blocks, 8 buffer cavities, 9 overflow holes, 10 upper liquid inlet holes, 11 lower liquid outlet holes, 12 locking nuts, 13 sizing ribs, 14 mounting seats, 15 mounting grooves and 16 scrapers.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
As shown in fig. 1 to 3, the utility model discloses a cold-drawing die for a seamless steel tube for an automobile longitudinal thrust rod, which comprises an outer die 1 and a core rod 2; the cold-drawing forming hole is formed in the outer die 1 and penetrates through the outer die 1; the cold-drawing forming hole comprises a reducing section 3, a reducing wall section 4 and a sizing section 5 which are sequentially connected; the reducing section 3 and the reducing wall section 4 are both frustum-shaped holes gradually shrinking to the sizing section 5, the taper of the reducing section 3 is greater than that of the reducing wall section 4, and the sizing section 5 is a cylindrical hole; further comprising: the lubricating channel is arranged on the outer die 1 and communicated with the sizing section 5; the intermediate piece is sleeved on the core rod 2; the adsorption block 7 is of a flexible structure, is sleeved on the core rod 2 and is positioned in the diameter reducing section 3; the intermediate piece is detachably connected with the mandrel 2, the intermediate piece is positioned in the sizing section 5, the diameter of the intermediate piece is larger than that of the mandrel 2, one side of the intermediate piece facing the reduced wall section 4 is provided with an inclined surface, and the lubricating channel is used for conveying lubricating liquid to the sizing section 5.
In the embodiment, the lubricating channel comprises a buffer cavity 8 which is arranged in the outer die 1 and surrounds the cold-drawing forming hole; a plurality of overflow holes 9 are uniformly arranged around the circumference of the cold-drawing forming hole and used for communicating the buffer cavity 8 with the sizing section 5; an upper inlet well 10; a lower drainage hole 11; the upper liquid inlet hole and the lower liquid outlet hole are respectively communicated with the buffer cavity 8 and the outside from the upper end and the lower end of the outer die 1.
According to the technical scheme, the adsorption block is arranged, so that the inner wall of the steel pipe is adsorbed before the steel pipe is formed, impurities on the steel pipe are removed, and the forming stability is improved; through the arrangement of the intermediate piece, stress can be applied to the mandrel, so that the outer die and the intermediate piece are stressed together during molding, the stress is uniform, the stability is improved, the service life is prolonged, the intermediate pieces with different diameters can be replaced, and the gap between the intermediate piece and the outer die is adjusted, so that the mandrel can be used for processing steel pipes with different thicknesses; through the setting of lubricated passageway, when the shaping, add lubricated liquid to the sizing section, improve the shaping stability, lubricated liquid enters into the cushion chamber from last inlet opening then from overflow hole dispersion entering sizing section, guarantee the homogeneity and the stability that lubricated liquid got into, simultaneously unnecessary lubricated liquid flows downwards again through overflow hole entering drainage hole discharge down, carry out recycle, avoid the processing environment to receive the pollution of a large amount of lubricated liquid, guarantee the sufficiency that lubricated liquid added, further improve the shaping temperature nature.
In this embodiment, the intermediate piece is screwed to the mandrel 2 and is fixed by means of a locking nut 12.
Through above-mentioned technical scheme, through with intermediate member and plug threaded connection, when the intermediate member atress, with the even dispersion of power to the plug, further improve the homogeneity of atress, improve life.
In this embodiment, the outer wall of the middle part 6 is further provided with a plurality of shaping ribs 13, and the shaping ribs and the middle part 6 are integrally formed.
Through above-mentioned technical scheme, through the setting of design rib, be convenient for process into various shapes with the steel pipe, change different middleware simultaneously, can be used to produce the steel pipe of different shapes, application scope is wide.
Example 2
As shown in fig. 4, the present embodiment is different from the above embodiments in that: in this embodiment, the outer mold 1 is further provided with a scraper mechanism, and the scraper mechanism includes a mounting seat 14 fixed to an end of the sizing section 5 of the outer mold 1 away from the reduced wall section 4; the mounting groove 15 is arranged on the mounting seat; and the scraper 16 is arranged in the mounting groove and used for processing the outer wall of the steel pipe.
Through above-mentioned technical scheme, through the setting of scraper mechanism, the outward appearance face and the scraper contact of the steel pipe after the shaping, the scraper is strickleed the steel pipe surface, gets rid of outstanding part, avoids producing the steel pipe surface unevenness's after the shaping phenomenon, improves the smoothness on steel pipe surface after the shaping.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (5)
1. The utility model provides a cold drawing mould of seamless steel pipe for car longitudinal thrust pole which characterized in that:
comprises an outer die and a core rod;
the cold-drawing forming hole is formed in the outer die and penetrates through the outer die;
the cold-drawing forming hole comprises a reducing section, a reducing wall section and a sizing section which are sequentially connected; the reducing section and the reducing wall section are both frustum-shaped holes gradually shrinking to the sizing section, the taper of the reducing section is greater than that of the reducing wall section, and the sizing section is a cylindrical hole;
further comprising:
the lubricating channel is arranged on the outer die and communicated with the sizing section;
the intermediate piece is sleeved on the core rod;
the adsorption block is arranged to be a flexible structure, sleeved on the core rod and positioned in the diameter reducing section;
the intermediate piece is detachably connected with the core rod, the intermediate piece is positioned in the sizing section, the diameter of the intermediate piece is larger than that of the core rod, one side of the intermediate piece, facing the reduced wall section, is provided with an inclined surface, and the lubricating channel is used for conveying lubricating liquid to the sizing section.
2. The cold-drawing die for the seamless steel tube for the automobile longitudinal thrust rod according to claim 1, wherein the cold-drawing die comprises: the lubricating channel comprises
The buffer cavity is arranged in the outer die and is arranged around the cold-drawing forming hole;
the overflow holes are arranged in a plurality of numbers, are uniformly arranged around the circumference of the cold-drawing forming hole and are used for communicating the buffer cavity with the sizing section;
an upper feed hole;
a lower drainage hole;
and the upper liquid inlet and the lower liquid outlet are respectively communicated with the buffer cavity and the outside from the upper end and the lower end of the outer die.
3. The cold-drawing die for the seamless steel tube for the automobile longitudinal thrust rod according to claim 1, wherein the cold-drawing die comprises: the intermediate piece is in threaded connection with the core rod and is fixed through a locking nut.
4. The cold-drawing die for the seamless steel tube for the automobile longitudinal thrust rod according to claim 1, wherein the cold-drawing die comprises: still be provided with a plurality of design ribs on the intermediate member outer wall, design rib and intermediate member integrated into one piece.
5. The cold-drawing die for the seamless steel tube for the automobile longitudinal thrust rod according to any one of claims 1 to 4, characterized in that: the outer mold is also provided with a scraper mechanism which comprises
The mounting seat is fixed at one end of the sizing section on the outer die, which is far away from the reduced wall section;
the mounting groove is formed in the mounting seat;
and the scraper is arranged in the mounting groove and used for processing the outer wall of the steel pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121834551.XU CN215391640U (en) | 2021-08-07 | 2021-08-07 | Cold-drawing die of seamless steel tube for automobile longitudinal thrust rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121834551.XU CN215391640U (en) | 2021-08-07 | 2021-08-07 | Cold-drawing die of seamless steel tube for automobile longitudinal thrust rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215391640U true CN215391640U (en) | 2022-01-04 |
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ID=79658336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121834551.XU Active CN215391640U (en) | 2021-08-07 | 2021-08-07 | Cold-drawing die of seamless steel tube for automobile longitudinal thrust rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215391640U (en) |
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2021
- 2021-08-07 CN CN202121834551.XU patent/CN215391640U/en active Active
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