CN216324916U - Cold-heading blank of automobile shock absorber ware steel inner core - Google Patents
Cold-heading blank of automobile shock absorber ware steel inner core Download PDFInfo
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- CN216324916U CN216324916U CN202123102025.7U CN202123102025U CN216324916U CN 216324916 U CN216324916 U CN 216324916U CN 202123102025 U CN202123102025 U CN 202123102025U CN 216324916 U CN216324916 U CN 216324916U
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Abstract
The utility model discloses a cold-heading blank of a steel inner core of an automobile shock absorber, wherein the top of the blank is provided with a through hole from top to bottom, the blank comprises an upper section, a middle section and a lower section, the top of the upper section of the blank is a port part, an upper section body is arranged below the port part of the upper section of the blank, the outer diameter of the upper section body is smaller than that of the port part, a transition section is arranged between the middle section of the blank and the upper section of the blank, the outer diameter of the middle section of the blank is equal to that of the port part, the outer wall of the transition section is gradually increased from the joint of the upper section body until the transition section is jointed with the middle section of the blank, the lower section of the blank and the upper section of the blank are radially symmetrical along the middle section of the blank, a transition section is also arranged between the lower section of the blank and the middle section of the blank, and the outer wall of the transition section is gradually increased from the joint of the lower section of the blank until the middle section of the blank is jointed with the blank. The utility model can solve the problems of lower production efficiency, high production cost and low utilization rate of steel materials when the key parts of the existing automobile damping system use steel pipes directly as blanks.
Description
Technical Field
The embodiment of the utility model relates to the technical field of automobile parts, in particular to a cold-heading blank of an automobile shock absorber steel inner core.
Background
Some high-end joint venture daily brand automobile shock mitigation system's key parts are made for low carbon steel, and it has the function of undertaking the transmission automobile body weight, the vibrations and the impact of automobile in going, can bear great compressive stress generally, and the overall mechanical strength requirement of product is higher, the existence of defect such as not having the crackle, its intensity is very important performance index, and this part is in the use, once fracture or compression deformation, shock mitigation system will lose the function, and the automobile goes jolt, and in some serious circumstances, still probably leads to automobile body and chassis separation, if the condition that the automobile goes at a high speed, can lead to serious consequence, therefore the good matter of this part quality is concerned with personal safety.
The blank used at present for producing the part is a steel pipe, and the pipe is cut off; the production is finished by turning inner holes, shapes, end faces and other machining processes, although the production requirements of small batches can be met, the production is finished by adopting a steel pipe as a blank, the operation is complex, operators need to be trained for a long time, otherwise the operators are difficult to master, the production of tens of thousands of products is finished, the operators are subjected to long-time repetitive mechanical labor, the eyes, the hands, the shoulders and other parts are quite fatigued, the production efficiency is low, each piece of product is processed for at least two minutes, each person can finish the production of hundreds of products every day, the total monthly sales of the daily automobile adopting the part is about 5 thousands, each automobile needs 4 parts, therefore, the part needs about 20 thousands of products each month, the conventional machining method needs about 250 and 300 lathes to meet the production quantity, the production investment is huge, the production required place is needed, the production required place is large, the production is not limited by the number of the steel pipe, and the production is not easy to be finished The number of workers is large, the labor intensity of operators is high, the use cost of equipment is high, and the production cost is high finally; in addition, the utilization rate of steel materials is only about 60% when the steel materials are produced by adopting the pure machining mode, a large amount of precious raw materials are changed into scrap waste residues, the production cost is increased, the environment is polluted, and the method does not accord with the energy-saving and low-carbon manufacturing concept proposed by the state at present.
SUMMERY OF THE UTILITY MODEL
Therefore, the embodiment of the utility model provides a cold-heading blank of a steel inner core of an automobile shock absorber, which aims to solve the problems of lower production efficiency, high production cost and low utilization rate of steel materials when a steel pipe is directly used as a blank for key parts of the conventional automobile shock absorbing system.
In order to achieve the above object, the embodiments of the present invention provide the following technical solutions: a cold-heading blank of a steel inner core of an automobile shock absorber is of an integrally formed cylindrical structure, the top of the blank is provided with a through hole from top to bottom, the blank comprises an upper section, a middle section and a lower section, the top of the upper section of the blank is a port part, an upper section body is arranged below the port part of the upper section of the blank, the outer diameter of the upper section body is smaller than that of the port part, a transition section is arranged between the middle section of the blank and the upper section of the blank, the outer diameter of the middle section of the blank is equal to that of the port part, the outer wall of the transition section is gradually increased from the joint of the upper section body until the transition section is jointed with the middle section of the blank, the lower section and the upper section of the blank are symmetrical along the radial direction of the middle section of the blank, a transition section is also arranged between the lower section and the middle section of the blank, the outer wall of the transition section is gradually increased from the joint of the lower section of the blank until the transition section is jointed with the middle section of the blank.
Preferably, the through hole comprises an upper section hole, a middle section hole, a transition hole and a lower section hole, the upper section hole corresponds to the blank upper section, the middle section hole corresponds to the blank middle section, the transition hole corresponds to the transition section, the lower section hole corresponds to the blank lower section, and the transition hole gradually increases from the joint of the upper section hole or the lower section hole until the transition hole is connected with the middle section hole.
Further preferably, the diameter and the length of the upper-stage hole and the lower-stage hole are equal.
Preferably, an arc-shaped section is arranged at the joint of the outer part of the port part and the outer part of the upper section body.
Preferably, the joint of the outer part of the upper section body and the outer part of the transition section is provided with a rounded corner, and the joint of the outer part of the upper section body and the outer part of the middle section of the blank is provided with a rounded corner.
Preferably, the material of the blank is SWCH 10A.
The utility model has at least the following advantages:
1. the blank related by the utility model can quickly and economically produce the part, ensures that all sizes and performances of the part meet the requirements of drawings and customers, relieves the production personnel from monotonous and repeated simple labor, reduces the labor intensity of the personnel and improves the labor efficiency of the personnel. Compared with the original pure machining production mode, the production efficiency is improved by more than 10 times, the energy is saved, the consumption is reduced, and the low carbon and environmental protection are realized;
2. the blank is made of SWCH10A, and has the advantages of stable components, low content of harmful elements, high steel purity, high surface quality, high geometric size precision, low cracking rate during cold forming, and the like.
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. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so that those skilled in the art can understand and read the present invention, and do not limit the conditions for implementing the present invention, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, should fall within the scope covered by the technical contents disclosed in the present invention without affecting the effects and the achievable purposes of the present invention.
FIG. 1 is a schematic structural view of one embodiment of a cold-headed blank for a steel inner core of an automobile shock absorber according to the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
wherein: 1-a through hole; 2-upper body; 3-a transition section; 4-upper section hole; 5-middle section hole; 6-a transition hole; 7-lower section hole.
Detailed Description
The present invention is described in terms of particular embodiments, other advantages and features of the utility model will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the utility model and that it is not intended to limit the utility model to the particular embodiments disclosed. 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.
Referring to fig. 1 and fig. 2, the present invention provides a technical solution: the utility model provides a cold-heading blank of automobile shock absorber ware steel inner core, the blank is integrated into one piece's columnar structure, through-hole 1 has been seted up to the top-down of blank, the blank includes the upper segment, middle section and hypomere, the upper segment top of blank is port portion, the below of the upper segment port portion of blank is upper segment body 2, the external diameter of upper segment body 2 is less than the external diameter of port portion, be provided with a changeover portion 3 between blank middle section and the blank upper segment, the external diameter of blank middle section equals with the external diameter of port portion, the outer wall of changeover portion 3 is until joining with the blank middle section by the department of meeting crescent of upper segment body 2, the radial symmetry of blank hypomere and blank upper segment along the blank middle section, and in the same way, also be provided with a changeover portion 3 between blank hypomere and the middle section blank, the outer wall of changeover portion 3 is joined with the blank middle section by the department of meeting crescent of blank of hypomere.
The through hole 1 comprises an upper section hole 4, a middle section hole 5, a transition hole 6 and a lower section hole 7, wherein the upper section hole 4 corresponds to the upper section of the blank, the middle section hole 5 corresponds to the middle section of the blank, the transition hole 6 corresponds to the transition section 3, the lower section hole 7 corresponds to the lower section of the blank, and the transition hole 6 is gradually enlarged from the joint of the upper section hole 4 or the lower section hole 7 until the transition hole is connected with the middle section hole 5.
The diameter and the length of the upper section hole 4 and the lower section hole 7 are equal.
The outside of port portion meets with the outside of upper segment body 2 and is provided with the segmental arc for the transition between port portion and the upper segment body 2 is more natural.
The outer part of the upper section body 2 is connected with the outer part of the transition section 3 to form a circular arc angle, and the outer part of the upper section body 2 is connected with the outer part of the middle section of the blank to form a circular arc angle, so that the concentration of stress is effectively reduced.
The blank is made of SWCH10A, and the material has the advantages of stable components, low harmful elements, high steel purity, high surface quality, high geometric size precision, low cracking rate during cold forming and the like.
The structure is that the blank produced by the company successfully adopts the cold heading mode through research and development, and then the blank can become a qualified product through simple machining, so that the machining amount is greatly reduced, the production efficiency is improved, the material consumption is reduced, and the size consistency of the product is improved. Meanwhile, because the complete metal streamline is reserved in the cold heading process and the cold hardening effect of metal is added, the whole mechanical property of the part produced by the process is obviously improved, and the product quality is obviously improved.
The part is produced in a cold heading mode, the production efficiency is high, 4-6 thousands of parts can be produced by each device every day, the production process is stable, and the production line can be operated by only one operator.
Because the shape of the blank is very close to that of the final product, the cold heading blank can be processed into a finished product only by cutting the end surfaces at two ends to the thickness of about 0.4mm without turning the appearance and the inner hole. This processing can be efficiently performed on an automatic lathe.
Because the cold heading process is adopted for production, the metal fiber is not cut off like machining, the metal streamline is complete, and the integral strength of the part is increased. In addition, due to the effect of work hardening, the deformation of the metal material in the cold heading process improves the hardness of the metal, thereby also enhancing the overall strength of the part, which is a significant advantage for the application thereof.
Although the utility model has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the utility model. Accordingly, such modifications and improvements are intended to be within the scope of the utility model as claimed.
Claims (6)
1. A cold-heading blank of an automobile shock absorber steel inner core is characterized in that the blank is of an integrally formed cylindrical structure, a through hole (1) is formed in the top of the blank from top to bottom, the blank comprises an upper section, a middle section and a lower section, the top of the upper section of the blank is a port part, an upper section body (2) is arranged below the port part of the upper section of the blank, the outer diameter of the upper section body (2) is smaller than the outer diameter of the port part, a transition section (3) is arranged between the middle section of the blank and the upper section of the blank, the outer diameter of the middle section of the blank is equal to the outer diameter of the port part, the outer wall of the transition section (3) is gradually increased from the joint of the upper section body (2) until the transition section of the blank is jointed, the lower section of the blank is symmetrical to the upper section of the blank along the radial direction of the blank, and a transition section (3) is also arranged between the lower section of the blank and the middle section of the blank, the outer wall of the transition section (3) is gradually increased from the joint of the lower section of the blank until the transition section is jointed with the middle section of the blank.
2. The cold-heading blank of the steel inner core of the automobile shock absorber, as recited in claim 1, wherein the through hole (1) comprises an upper section hole (4), a middle section hole (5), a transition hole (6) and a lower section hole (7), the upper section hole (4) corresponds to the upper section of the blank, the middle section hole (5) corresponds to the middle section of the blank, the transition hole (6) corresponds to the transition section (3), the lower section hole (7) corresponds to the lower section of the blank, and the transition hole (6) gradually increases from the connection of the upper section hole (4) or the lower section hole (7) until the transition hole (5) is connected.
3. The cold-heading blank for the steel inner core of the automobile shock absorber as claimed in claim 2, wherein the diameter and the length of the upper-stage hole (4) and the lower-stage hole (7) are equal.
4. The cold-heading blank for the steel inner core of the automobile shock absorber as claimed in claim 1, wherein the joint of the outer part of the port part and the outer part of the upper section body (2) is provided with an arc-shaped section.
5. The cold-heading blank for the steel inner core of the automobile shock absorber, as recited in claim 1, wherein the outer portion of the upper body (2) is rounded at the junction with the outer portion of the transition section (3), and the outer portion of the upper body (2) is rounded at the junction with the outer portion of the middle section of the blank.
6. The cold-headed blank for a steel inner core of an automobile shock absorber as set forth in claim 1, wherein the material of the blank is SWCH 10A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123102025.7U CN216324916U (en) | 2021-12-06 | 2021-12-06 | Cold-heading blank of automobile shock absorber ware steel inner core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123102025.7U CN216324916U (en) | 2021-12-06 | 2021-12-06 | Cold-heading blank of automobile shock absorber ware steel inner core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216324916U true CN216324916U (en) | 2022-04-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123102025.7U Active CN216324916U (en) | 2021-12-06 | 2021-12-06 | Cold-heading blank of automobile shock absorber ware steel inner core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216324916U (en) |
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2021
- 2021-12-06 CN CN202123102025.7U patent/CN216324916U/en active Active
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