CN218361847U - Combined core rod for drawing out super-long cylinder forging - Google Patents
Combined core rod for drawing out super-long cylinder forging Download PDFInfo
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- CN218361847U CN218361847U CN202222874735.XU CN202222874735U CN218361847U CN 218361847 U CN218361847 U CN 218361847U CN 202222874735 U CN202222874735 U CN 202222874735U CN 218361847 U CN218361847 U CN 218361847U
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Abstract
The utility model discloses a overlength barrel forging is pulled out long and is used combination plug, including the extension section that plug main part and terminal coaxial spot welding are connected, interior screw hole has been seted up along the axial to the end of plug main part, and the extension section is close to the one end of plug main part along axial fixedly connected with and interior screw-thread fit's outer screw rod, and the one end that the plug main part was kept away from to the extension section is equipped with a plurality of spiral holes along even spaced apart of lateral wall circumference, and the center of extension section has seted up along the axial and has subtract heavy through-hole. The combined core rod for drawing the overlong cylinder forging realizes rapid combination and disassembly through thread and spot welding connection, can forge the overlong cylinder forging, and has better universality; the rotary joint hole and the weight reduction through hole are formed in a combined mode, the use is convenient, the purpose that the inner hole is forged by the overlong cylinder forging is achieved, and the economic benefit is increased.
Description
Technical Field
The utility model belongs to the technical field of the free forging frock, concretely relates to overlength barrel forging is pulled out long and is used combination plug.
Background
In free forging production, a large number of cylinder forgings such as various pressure vessels, cylinder bodies and the like exist, wherein the ultra-long cylinder forgings are difficult to forge due to insufficient length of the core rod, and if the ultra-long cylinder forgings are drawn out by using a short core rod, the ultra-long cylinder forgings are easy to bend beyond the core rod, so that the processing requirements are not met; for example, the casting of long core rods is often difficult due to the casting cost and the construction period. Therefore, the ultra-long cylinder forging is usually forged to be solid in a free forging process, so that the weight of the forging is increased; and because the inner hole of the super-long cylinder forging is not forged, the subsequent processing time is large, and the material is greatly wasted.
Therefore, a new forging tool is urgently needed to be researched and developed, so that the inner hole of the ultra-long cylinder forging can be forged, the weight of the forging and the machining time are reduced, and the economic benefit is increased.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a overlength barrel forging is drawn out and is used combination plug has solved the difficult problem of forging out of current overlength barrel forging hole.
The utility model adopts the technical proposal that: the combined mandrel for drawing out the ultralong cylinder forging comprises a mandrel main body and an elongated section, wherein the elongated section is coaxially connected with the tail end of the mandrel main body in a spot welding mode, an inner threaded hole is formed in the tail end of the mandrel main body in the axial direction, one end, close to the mandrel main body, of the elongated section is fixedly connected with an outer screw rod in threaded fit with the inner threaded hole in the axial direction, a plurality of screwing holes are formed in the end, far away from the mandrel main body, of the elongated section in the circumferential direction of the side wall in a uniformly spaced mode, and a weight reduction through hole is formed in the center of the elongated section in the axial direction.
The utility model is also characterized in that,
the combined core rod is a cone, and the diameter of one end of the lengthened section, which is far away from the core rod main body, is smaller than that of the head end of the core rod main body.
The taper of the side wall of the core rod main body is consistent with that of the side wall of the lengthening section, and the taper is 1.
The screwing length of the threads of the inner screw hole and the outer screw rod is 1.6 to 1.8 times of the nominal diameter of the threads.
Four screwing holes are formed.
The utility model has the advantages that: the combined core rod for drawing the overlong cylinder forging realizes rapid combination and disassembly through thread and spot welding connection, can forge the overlong cylinder forging, and has better universality; the rotary joint hole and the weight reduction through hole are formed in a combined mode, the use is convenient, the purpose that the inner hole is forged by the overlong cylinder forging is achieved, and the economic benefit is increased.
Drawings
Fig. 1 is a schematic structural view of the combined mandrel for drawing out an ultra-long cylinder forging of the present invention;
fig. 2 is a front view of the core rod main body of the combined core rod for drawing out the ultra-long cylinder forging of the utility model;
FIG. 3 is a left side view of the core rod main body of the combined core rod for drawing out the ultra-long cylinder forging of the present invention;
FIG. 4 is a front view of the lengthening section of the combined core rod for drawing out the ultra-long cylinder forging of the present invention;
fig. 5 is a left side view of the lengthening section of the combined core rod for drawing out the ultra-long cylinder forging of the utility model;
FIG. 6 is a schematic illustration of the configuration of the blank after completion of the first fire;
FIG. 7 is a schematic view showing the structure of the mandrel bar of the present invention after the second fire is used;
fig. 8 is a schematic structural view of the combination mandrel drawing forming of the present invention in the third fire.
In the drawing, 1, a mandrel main body, 2, an elongated section, 3, an inner screw hole, 4, an outer screw rod, 5, a screwing hole, 6, a weight-reducing through hole, 7, an ultra-long cylinder forging, 8, a blank, 9, a flat anvil and 10.V-shaped anvil are arranged.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
The utility model provides a overlength barrel forging is pulled out long and is used combination plug, as shown in figure 1, including the extension section 2 of plug main part 1 and terminal coaxial spot welding connection, as shown in figure 2 and figure 3, interior screw hole 3 has been seted up along the axial to the end of plug main part 1, as shown in figure 4, extension section 2 is close to the one end of plug main part 1 and is followed axial fixedly connected with and 3 screw-thread fit's of interior screw hole outer screw rod 4, connects through screw thread and spot welding and realizes the rapid Assembly and disassemble. As shown in fig. 5, one end of the lengthened section 2, which is far away from the mandrel main body 1, is provided with four screwing holes 5 at intervals along the circumferential direction of the side wall, so that the lengthened section 2 is screwed by a tool in the process of convenient assembly, and the center of the lengthened section 2 is provided with a weight reduction through hole 6 along the axial direction, so that the lengthened section 2 mainly plays a role in guiding when the ultralong cylinder forging is drawn, the part of the ultralong cylinder forging with the length exceeding the mandrel main body 1 is prevented from bending in the drawing process, and the weight reduction through hole 6 can reduce the production cost under the condition of meeting the strength requirement.
Wherein, the whole preferred cone that is preferred of combination plug, the diameter that extension section 2 kept away from 1 one end of plug main part is less than the diameter of 1 head end of plug main part, and 1 lateral wall tapering of plug main part is unanimous with the 2 lateral wall tapering of extension section, is 1, and it is more convenient when making combination plug alternate and extract when using.
The screwing length of the inner screw hole 3 and the outer screw rod 4 is 1.6 to 1.8 times of the nominal diameter of the screw thread, thereby meeting the requirement of basic strength.
Utilize the utility model discloses a combination plug carries out forging of overlength barrel forging 7, and concrete operation is:
preparing: selecting a core rod main body 1 and processing and manufacturing an extension section 2 according to the ultralong cylinder forgings 7 with different specifications;
forging: as shown in fig. 6, the blank 8 is heated to the forging temperature, and as shown in fig. 7, the blank of the super-long cylindrical forging 7 is drawn out by the mandrel main body 1 to a length substantially equal to the length of the mandrel main body 1, and as shown in fig. 8, the mandrel main body 1 and the extension section 2 are combined into a combined mandrel, and the blank of the super-long cylindrical forging 7 is drawn out and formed by the combined mandrel, the flat anvil 9, and the V-shaped anvil 10, and the forging is finished by forging.
In this way, the combined core rod for drawing out the ultra-long cylinder forging realizes rapid combination and disassembly through thread and spot welding connection, so that the ultra-long cylinder forging 7 can be forged, and the combination has good universality; the rotary joint hole 5 and the weight reduction through hole 6 are formed in a combined mode, the use is convenient, the purpose that the inner hole is forged by the ultra-long cylinder forging 7 is achieved, and the economic benefit is increased.
Claims (5)
1. Combined core rod for drawing out super-long cylinder forging piece is characterized by comprising a core rod main body (1) and a lengthening section (2) which is coaxially connected with the end of the core rod main body in a spot welding mode, wherein an inner threaded hole (3) is formed in the end of the core rod main body (1) in the axial direction, one end, close to the core rod main body (1), of the lengthening section (2) is connected with an outer screw rod (4) in threaded fit with the inner threaded hole (3) in an axial direction in a fixed mode, a plurality of screwing holes (5) are formed in one end, far away from the core rod main body (1), of the lengthening section (2) in the circumferential direction of a side wall in a uniformly spaced mode, and a weight reduction through hole (6) is formed in the center of the lengthening section (2) in the axial direction.
2. The combined core rod for drawing out the super-long cylinder forging as claimed in claim 1, wherein the combined core rod is a cone, and the diameter of one end of the lengthened section (2) far away from the core rod main body (1) is smaller than that of the head end of the core rod main body (1).
3. The combined mandrel for drawing out the ultra-long cylinder forging as claimed in claim 2, wherein the side wall taper of the mandrel main body (1) is consistent with that of the lengthened section (2), and the side wall taper is 1.
4. The combined mandrel for drawing out a super-long cylinder forging as claimed in claim 1, wherein the screwing length of the threads of the inner screw hole (3) and the outer screw rod (4) is 1.6-1.8 times of the nominal diameter of the threads.
5. The combined mandrel for drawing out the ultra-long cylinder forging as claimed in claim 1, wherein four screwing holes (5) are formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222874735.XU CN218361847U (en) | 2022-10-28 | 2022-10-28 | Combined core rod for drawing out super-long cylinder forging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222874735.XU CN218361847U (en) | 2022-10-28 | 2022-10-28 | Combined core rod for drawing out super-long cylinder forging |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218361847U true CN218361847U (en) | 2023-01-24 |
Family
ID=84937041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222874735.XU Active CN218361847U (en) | 2022-10-28 | 2022-10-28 | Combined core rod for drawing out super-long cylinder forging |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218361847U (en) |
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2022
- 2022-10-28 CN CN202222874735.XU patent/CN218361847U/en active Active
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