CN217095514U - Split type connecting device for forging inner die - Google Patents
Split type connecting device for forging inner die Download PDFInfo
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- CN217095514U CN217095514U CN202220625642.0U CN202220625642U CN217095514U CN 217095514 U CN217095514 U CN 217095514U CN 202220625642 U CN202220625642 U CN 202220625642U CN 217095514 U CN217095514 U CN 217095514U
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- pull rod
- connecting device
- flange
- punch
- inner die
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- 238000005242 forging Methods 0.000 title claims description 26
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 9
- 239000010959 steel Substances 0.000 claims abstract description 9
- 238000010438 heat treatment Methods 0.000 claims description 8
- 229910000954 Medium-carbon steel Inorganic materials 0.000 claims description 4
- 238000010791 quenching Methods 0.000 claims description 4
- 230000000171 quenching effect Effects 0.000 claims description 4
- 238000003754 machining Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 10
- 238000001192 hot extrusion Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 238000003825 pressing Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 238000007493 shaping process Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
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Abstract
The utility model provides a forge split type connecting device of centre form, flange bolt fixed mounting is passed through to the bottom of die holder has flange, flange's top center part processing has the step hole, the pull rod is spacing installed through the nut in the inside in step hole, the other end of pull rod passes the step hole, the outside cover of pull rod is equipped with the sleeve, the bottom fixed mounting of pull rod has the drift to compress tightly the sleeve at flange's bottom face. Meanwhile, the split part of the die is smaller than the integral wall thickness, so that the die sleeve can be conveniently machined by steel blanks, and the machining cost is reduced.
Description
Technical Field
The utility model belongs to steel hot forging manufacturing installation field, concretely relates to forge split type connecting device of centre form, the advanced preparation of concretely relates to metal and non-metallic material, machine-shaping technique.
Background
The guide sleeve is used as a part of the oil cylinder of the engineering machinery, and due to the complex shape, the traditional processing mode has the disadvantages of large processing amount, long processing period, large material loss and high production cost. The blank is firstly roughly processed to a characteristic shape by adopting a hot extrusion forging mode and then lathed, so that the material processing amount and the processing period can be reduced. At present, common hot extrusion forging dies are all of integral structures, special materials are required to be selected for bearing pressure and high temperature, and the manufacturing and processing cost of the dies is high. And at present, no die special for hot extrusion forging of the guide sleeve exists.
SUMMERY OF THE UTILITY MODEL
For solving above technical problem, the utility model provides a forge split type connecting device of centre form decomposes into a plurality of parts with a holistic forging and pressing centre form, substructure mainly used hot extrusion's shaping, bearing pressure and high temperature, the assembly installation of superstructure mainly used mould, for whole mould, the mould adopts split type design, not only can make the mould be convenient for process, can also increase mould life and product size precision, and simultaneously, because the part behind the mould components of a whole that can function independently is less for integral wall thickness, be convenient for adopt steel blank to carry out the die sleeve processing, reduce the processing cost.
In order to realize the technical characteristics, the purpose of the utility model is realized as follows: the utility model provides a forge split type connecting device of centre form, it includes the die holder, flange bolt fixed mounting is passed through to the bottom of die holder has flange, flange's top center part processing has the step hole, the inside in step hole is through the spacing pull rod of installing of nut, the other end of pull rod passes the step hole, the outside cover of pull rod is equipped with the sleeve, the bottom fixed mounting of pull rod has the drift to compress tightly the sleeve at flange's bottom face.
And a first threaded hole matched with the flange bolt is formed in the bottom end face of the die holder.
A plurality of stepped holes for installing flange bolts are machined in the connecting flange.
The pull rod is a cylinder, a first external thread and a second external thread are respectively processed at two ends of the pull rod, the first external thread is matched with the nut, and the second external thread is matched with a second threaded hole processed at the center of the punch.
The whole appearance structure of the punch is a round table with steps, and a plurality of small steps are uniformly distributed on the outer circle structure.
The punch head is made of heat-resistant steel, and the heat treatment state is a quenching state.
The sleeve is made of common medium carbon steel, and the heat treatment state is a quenched and tempered state.
The end face of the nut is provided with a plurality of first cylindrical holes for disassembling the nut.
And a plurality of second cylindrical holes for disassembling the punch are machined in the bottom end surface of the punch.
The utility model discloses there is following beneficial effect:
1. through adopting the utility model discloses a device is through decomposing into a plurality of parts with a holistic forging and pressing centre form, substructure mainly used hot extrusion's shaping, bearing pressure and high temperature, the assembly installation of superstructure mainly used mould, for whole mould, the mould adopts split type design, not only can make the mould be convenient for process, can also increase mould life and product size precision, simultaneously, because the part behind the mould components of a whole that can function independently is less for whole wall thickness, be convenient for adopt steel blank to carry out the die sleeve processing, reduce the processing cost.
2. The connecting flange and the nut are matched to be connected, so that the pull rod can be limited and mounted.
3. The sleeve material is made of common medium carbon steel, the heat treatment state is a quenched and tempered state, the hardness of a matrix is high, and the sleeve material can bear pressure and part of high temperature in the forging process.
4. By adopting the punch head made of heat-resistant steel, the heat treatment state is a quenching state, and the hardness of the matrix is higher, so that the high-temperature resistance and wear resistance of the punch head are ensured.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a main sectional view of the present invention.
Fig. 2 is a sectional view of the die holder of the present invention.
Fig. 3 is a cross-sectional view of the small step of the present invention.
In the figure: the die holder comprises a die holder 1, a flange bolt 2, a connecting flange 3, a nut 4, a first external thread 5, a first cylindrical hole 6, a stepped hole 7, a first threaded hole 8, a pull rod 9, a sleeve 10, a second external thread 11, a punch 12, a second cylindrical hole 13, a second threaded hole 14, a small step 15 and a stepped hole 16.
Detailed Description
The following describes embodiments of the present invention with reference to the accompanying drawings.
Referring to fig. 1-3, a split type connecting device for a forging inner die comprises a die holder 1, a connecting flange 3 is fixedly mounted at the bottom end of the die holder 1 through a flange bolt 2, a step hole 7 is processed at the center of the top end of the connecting flange 3, a pull rod 9 is mounted in the step hole 7 in a limiting mode through a nut 4, the other end of the pull rod 9 penetrates through the step hole 7, a sleeve 10 is sleeved outside the pull rod 9, a punch 12 is fixedly mounted at the bottom end of the pull rod 9, and the sleeve 10 is tightly pressed on the bottom end face of the connecting flange 3. Through adopting the utility model discloses a device decomposes into a plurality of parts with a holistic forging and pressing centre form, substructure mainly used hot extrusion's shaping, bearing pressure and high temperature, the assembly installation of superstructure mainly used mould, for whole mould, the mould adopts split type design, not only can make the mould be convenient for process, can also increase mould life and product size precision, simultaneously, because the part behind the mould components of a whole that can function independently is less for whole wall thickness, be convenient for adopt steel blank to carry out the die sleeve processing, reduce the processing cost.
Furthermore, a first threaded hole 8 matched with the flange bolt 2 is formed in the bottom end face of the die holder 1. Through the flange connection mode, the connection reliability between the connecting flange 3 and the die holder 1 is ensured.
Furthermore, a plurality of stepped holes 16 for mounting the flange bolts 2 are formed in the connecting flange 3. The stepped hole 16 can be used to fix and mount the flange bolt 2.
Furthermore, the pull rod 9 is a cylinder, a first external thread 5 and a second external thread 11 are respectively processed at two ends of the pull rod 9, the first external thread 5 is matched with the nut 4, and the second external thread 11 is matched with a second threaded hole 14 processed at the center of the punch 12.
Further, the overall shape structure of the punch 12 is a round table with steps, and a plurality of small steps 15 are uniformly distributed on the outer circle structure. The small steps can reduce the friction force between the forging and the punch in the forging and pressing process, the forging and the punch are easily separated after forging and pressing, and the forging is prevented from locking the punch.
Further, the material of the punch 12 is heat-resistant steel, and the heat treatment state is a quenching state. Thereby ensuring the high temperature resistance and the wear resistance.
Further, the sleeve 10 is an axisymmetric structure, the overall shape of the sleeve is a cylinder, and the inner circle of the sleeve is provided with a hole matched with the outer diameter of the pull rod.
Further, the sleeve 10 is made of common medium carbon steel, and the heat treatment state is a quenched and tempered state. The hardness of the matrix is high, and the pressure and part of high temperature are mainly borne in the forging process.
Furthermore, a plurality of first cylindrical holes 6 for disassembling the nut 4 are processed on the end surface of the nut. Subsequent disassembly of the nut 4 can be facilitated by employing the first cylindrical bore 6 described above.
Further, a plurality of second cylindrical holes 13 for detaching the punch 12 are formed in the bottom end surface of the punch. Subsequent removal of the punch 12 can be facilitated by the use of the second cylindrical bore 13 described above.
The utility model discloses an assembling process:
firstly, a nut 4 is arranged on a first external thread 5 of a pull rod 9, then the pull rod 9 penetrates through a step hole 7 of a connecting flange 3, then the connecting flange 3 is fixedly arranged on a die holder 1 through a flange bolt 2, then a sleeve 10 is sleeved on the pull rod 9, then a punch 12 is fixedly arranged on a second external thread 11 through threads, and the punch 12 is locked and fixed.
The utility model discloses a theory of operation:
in the specific working process, the punch 12 bears high temperature in the forging process to cause the punch 12 and the pull rod 9 to deform, so that the punch 12 is difficult to be detached from the pull rod 9, the punch 12 can be detached by using a mode of detaching the nut 4, the punch 12 and the pull rod 9 are taken as an integral structure, the upper part of the pull rod 9 and threads are less affected by the high temperature, the deformation is less, and the mounting and the detachment are not affected.
Claims (9)
1. The utility model provides a forge split type connecting device of centre form which characterized in that: it includes die holder (1), flange bolt (2) fixed mounting is passed through to the bottom of die holder (1) has flange (3), the processing of the top center part of flange (3) has step hole (7), the inside of step hole (7) is spacing through nut (4) and is installed pull rod (9), step hole (7) are passed to the other end of pull rod (9), the outside cover of pull rod (9) is equipped with sleeve (10), the bottom fixed mounting of pull rod (9) has drift (12) to compress tightly sleeve (10) at the bottom face of flange (3).
2. The split connecting device of the forging inner die as claimed in claim 1, wherein: and a first threaded hole (8) matched with the flange bolt (2) is formed in the bottom end face of the die holder (1).
3. The split connecting device of the forging inner die as claimed in claim 1, wherein: a plurality of stepped holes (16) for installing flange bolts (2) are machined in the connecting flange (3).
4. The split connecting device of the forging inner die as claimed in claim 1, wherein: the pull rod (9) is a cylinder, a first external thread (5) and a second external thread (11) are respectively processed at two ends of the pull rod (9), the first external thread (5) is matched with the nut (4), and the second external thread (11) is matched with a second threaded hole (14) processed at the center of the punch (12).
5. The split connecting device of the forging inner die as claimed in claim 1, wherein: the whole appearance structure of the punch (12) is a round table with steps, and a plurality of small steps (15) are uniformly distributed on the outer circle structure.
6. The split connecting device of the forging inner die as claimed in claim 5, wherein: the punch head (12) is made of heat-resistant steel, and the heat treatment state is a quenching state.
7. The split connecting device of the forging inner die as claimed in claim 1, wherein: the sleeve (10) is made of common medium carbon steel, and the heat treatment state is a quenched and tempered state.
8. The split connecting device of the forging inner die as claimed in claim 1, wherein: the end face of the nut (4) is provided with a plurality of first cylindrical holes (6) for disassembling the nut.
9. The split connecting device of the forging inner die as claimed in claim 1, wherein: the bottom end surface of the punch (12) is provided with a plurality of second cylindrical holes (13) for disassembling the punch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220625642.0U CN217095514U (en) | 2022-03-22 | 2022-03-22 | Split type connecting device for forging inner die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220625642.0U CN217095514U (en) | 2022-03-22 | 2022-03-22 | Split type connecting device for forging inner die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217095514U true CN217095514U (en) | 2022-08-02 |
Family
ID=82604012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220625642.0U Active CN217095514U (en) | 2022-03-22 | 2022-03-22 | Split type connecting device for forging inner die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217095514U (en) |
-
2022
- 2022-03-22 CN CN202220625642.0U patent/CN217095514U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A split type connection device for forging inner molds Granted publication date: 20220802 Pledgee: Bank of China Limited by Share Ltd. Three Gorges Branch Pledgor: YICHANG ZHONGNAN PRECISION STEEL PIPE CO.,LTD. Registration number: Y2024980001664 |