CN215431364U - Guide pillar system of press die - Google Patents
Guide pillar system of press die Download PDFInfo
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- CN215431364U CN215431364U CN202120677713.7U CN202120677713U CN215431364U CN 215431364 U CN215431364 U CN 215431364U CN 202120677713 U CN202120677713 U CN 202120677713U CN 215431364 U CN215431364 U CN 215431364U
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- interference fit
- hole
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- die
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Abstract
The utility model discloses a guide pillar system of a press die, belongs to the field of die forging, and aims to realize quick and low-cost disassembly of a guide pillar. Comprises a guide post and an interference fit hole on a die body; the guide post comprises a sliding guide section and an interference fit section along the axial direction of the guide post; the interference fit section is in a gradually-inward-folded round table shape from one end adjacent to the sliding guide section to the other end; the interference fit hole is in a gradually inward-folded round table shape from the parting surface to the top surface of the die body; and the mould body is provided with an ejection hole. According to the utility model, the round table shape of the interference fit section and the round table shape of the interference fit hole of the guide pillar are matched with the arrangement of the ejection hole, so that when the guide pillar is disassembled again, the ejection tool directly extends into the ejection hole to act on the lower end of the sliding guide section, the guide pillar can be ejected out of the interference fit hole, the guide pillar is not required to be processed, the processing cost is saved, the processing procedures are reduced, and the guide pillar disassembly period is greatly shortened.
Description
Technical Field
The utility model belongs to the field of die forging, and particularly relates to a guide pillar system of a press die.
Background
A die guide pillar is arranged between an upper die and a lower die of the die forging press, and the die offset caused by offset force is reduced in the process of pressing the forge piece through the die guide pillar, so that the forge piece offset is reduced.
The die guide post comprises a sliding guide section and an interference fit section along the axial direction of the die guide post. One of the dies in a set, usually the upper die, is provided with an interference fit hole, and the other die, usually the lower die, is provided with a slide guide hole. The interference fit section is in interference fit with the interference fit hole to realize the fixed connection of the die guide column and the upper die; when the forge piece is pressed, the sliding guide section is inserted into the sliding guide hole of the lower die to control the displacement of the upper die and the lower die.
The current press die guide post is generally a cylindrical guide post, namely, the sliding guide section and the interference fit section are cylindrical with equal diameters. According to the structure, when the guide pillar is worn, gnawed and the like in the long-time use process of the die, when the guide pillar needs to be disassembled, the original guide pillar needs to be disassembled by turning and milling to damage the guide pillar, the machining cost is calculated according to the tonnage of the die, the tonnage of the die for the press is large, and the machining cost is extremely high; for the external committee processing, the processing flow is long, the procedures are various, and the processing period is long.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problem of high dismounting cost of the existing die guide post, and provides a die guide post system of a press, which realizes quick and low-cost dismounting of the guide post.
The technical scheme adopted by the utility model is as follows: the press die guide post system comprises a guide post and an interference fit hole arranged on one of the die bodies which are arranged in a matched manner; the guide post comprises a sliding guide section and an interference fit section which is in interference fit connection with the interference fit hole along the axial direction of the guide post; the interference fit section is in a gradually-inward-folded round table shape from one end adjacent to the sliding guide section to the other end; the interference fit hole is in a gradually inward-folded round table shape from the parting surface to the top surface of the die body; and an ejection hole is formed in the die body and penetrates through the interference fit hole to the top surface of the die body along the axial direction of the interference fit hole.
Further, the ejection hole is coaxial with the interference fit hole.
Further, the ejection hole is a cylindrical hole.
Furthermore, the sliding guide section of the guide pillar is cylindrical, an inwards concave air guide groove is formed in the outer wall of the sliding guide section, and the air guide groove extends from one end of the sliding guide section to the other end of the sliding guide section along the axial direction of the sliding guide section.
Furthermore, the air guide grooves are provided with two air guide grooves which are oppositely arranged on two sides of the sliding guide section.
Furthermore, a guiding part is arranged at the tail end of the sliding guide section, and the guiding part is in a truncated cone shape gradually contracting inwards towards the tail end along the axial direction of the sliding guide section.
Furthermore, a lifting hole which is inwards sunken along the axial direction of the sliding guide section is arranged at the center of the tail end of the sliding guide section, and the lifting hole is a threaded hole.
Further, the diameter of the sliding guide section of the guide post is D; the length of the interference fit section is L; the diameter of the ejection hole is d; then L is (1.2-1.8) x D; d is (1/3-1/4). times.D.
The utility model has the beneficial effects that: according to the press die guide column system disclosed by the utility model, the interference fit section of the guide column is set to be in the shape of a circular truncated cone with a large end adjacent to the sliding guide section and a small end far away from the sliding guide section, and the circular truncated cone of the interference fit hole is arranged and matched with the arrangement of the ejection hole, so that when the guide column is disassembled again, the guide column directly extends into the ejection hole through the ejection tool to act on the lower end of the sliding guide section, the interference fit hole can be ejected out of the guide column, the guide column does not need to be processed, the processing cost is saved, the processing procedures are reduced, the guide column disassembly period is greatly shortened, and the low-cost and quick disassembly of the guide column is realized.
Drawings
FIG. 1 is a schematic view of a guide post;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is a schematic view of a mold body;
fig. 4 is a schematic view of the guide post being disassembled.
In the figure, a die body 1, an interference fit hole 11, an ejection hole 12, a guide post 2, a sliding guide section 21, an interference fit section 22, an air guide groove 23, a guide part 24, a lifting hole 25 and an ejection tool 3.
Detailed Description
The utility model is further described below with reference to the accompanying drawings:
the guide post system of the press die, as shown in fig. 1 and fig. 3, comprises a guide post 2 and an interference fit hole 11 arranged on one of the die bodies 1 which are arranged in a matching way; the guide post 2 comprises a sliding guide section 21 and an interference fit section 22 which is in interference fit connection with the interference fit hole 11 along the axial direction of the guide post; the interference fit section 22 is in a gradually-inward-folded round table shape from one end adjacent to the sliding guide section 21 to the other end; the interference fit hole 11 is in a gradually inward-folded round table shape from the parting surface to the top surface of the die body 1; and an ejection hole 12 is arranged on the die body 1, and the ejection hole 12 penetrates from the interference fit hole 11 to the top surface of the die body 1 along the axial direction of the interference fit hole 11.
According to the press die guide post system disclosed by the utility model, the interference fit section 22 of the guide post 2 is arranged to be a round table shape with a large end adjacent to the sliding guide section 21 and a small end far away from the sliding guide section 21, and the round table shape of the interference fit hole 11 is arranged and matched with the arrangement of the ejection hole 12, so that when the guide post 2 is disassembled, the guide post 2 can be ejected out of the interference fit hole 11 by directly extending the ejection tool 3 into the ejection hole 12 to act on the lower end of the sliding guide section 21, the guide post 2 does not need to be processed, the processing cost is saved, the processing procedures are reduced, the disassembly period of the guide post 2 is greatly shortened, and the low-cost quick disassembly of the guide post 2 is realized.
The die set comprises an upper die and a lower die, and the die body 1 of the utility model is generally the die body of the upper die, and can be the die body of the lower die. The embodiments disclosed in fig. 2 and 3 of the present invention both refer to the die body of the upper die. Namely, the interference fit hole 11 is arranged on the die body of the upper die, and the sliding guide hole is arranged on the die body of the lower die. Wherein, the top surface of the die body 1 is opposite to the parting surface of the die body 1. For the upper die, the top surface is the surface above the upper die in a use state; for the lower die, the top surface is the surface below the lower die in the use state.
In order to smoothly eject the guide post 2, the ejection hole 12 is coaxial with the interference fit hole 11.
The ejection hole 12 may be square, but for convenience of processing and convenience of inserting the ejection tool 3 into the ejection hole 12, it is preferable that the ejection hole 12 is a cylindrical hole.
In order to exhaust gas in the process of closing the upper mold and the lower mold, as shown in fig. 2, the sliding guide section 21 of the guide post 2 is cylindrical, a concave air guide groove 23 is provided on the outer wall of the sliding guide section 21, and the air guide groove 23 extends from one end of the sliding guide section 21 to the other end along the axial direction of the sliding guide section 21.
In order to improve the efficiency of gas discharge and ensure the strength of the sliding guide section 21, the gas guide grooves 23 are provided in two ways, and the two gas guide grooves 23 are oppositely arranged on two sides of the sliding guide section 21.
In order to guide the slide guide section 21 to smoothly enter the slide guide hole during the mold clamping process, a guide portion 24 is provided at the end of the slide guide section 21, and the guide portion 24 is in a truncated cone shape gradually converging toward the end thereof along the axial direction of the slide guide section 21.
In order to facilitate the assembly, disassembly and lifting of the guide post 2, a lifting hole 25 which is recessed inwards along the axial direction is arranged at the center of the tail end of the sliding guide section 21, and the lifting hole 25 is a threaded hole.
In order to meet the strength requirement of the guide post 2 and the die body 1, the diameter of the sliding guide section 21 of the guide post 2 is preferably D; the length of the interference fit section 22 is L; the diameter of the ejection hole 12 is d; then L is (1.2-1.8) x D; d is (1/3-1/4). times.D.
The utility model discloses a guide post system of a press die, as shown in figure 4, the concrete operation steps of the guide post 2 disassembly are as follows:
firstly, raising a die body 1 at a die parting surface of the die by using equal-height cushion blocks to suspend a guide pillar 2 in interference fit with the die body 1; then, inserting the ejection tool 3 into the ejection hole 12 from one end of the ejection hole 12 far away from the interference fit hole 11; finally, a press or other equipment is used for applying pressure to the ejection tooling 3 along the axial direction of the ejection hole 12 to the side of the interference fit hole 11, and the guide pillar 2 is ejected. The ejection tool 3 is generally rod-shaped.
Claims (7)
1. The press die guide post system comprises a guide post (2) and an interference fit hole (11) arranged on one die body (1) which is arranged in a matched manner; the guide post (2) comprises a sliding guide section (21) and an interference fit section (22) which is in interference fit connection with the interference fit hole (11) along the axial direction of the guide post; the method is characterized in that: the interference fit section (22) is in a gradually-retracted circular truncated cone shape from one end adjacent to the sliding guide section (21) to the other end; the interference fit hole (11) is in a truncated cone shape gradually retracted from the parting surface to the top surface of the die body (1); an ejection hole (12) is formed in the die body (1), and the ejection hole (12) penetrates from the interference fit hole (11) to the top surface of the die body (1) along the axial direction of the interference fit hole (11); the sliding guide section (21) of the guide post (2) is cylindrical, an inwards concave air guide groove (23) is formed in the outer wall of the sliding guide section (21), and the air guide groove (23) extends to the other end from one end of the sliding guide section (21) along the axial direction of the sliding guide section (21).
2. The press die guide post system of claim 1, wherein: the ejection hole (12) is coaxial with the interference fit hole (11).
3. The press die guide post system of claim 1, wherein: the ejection hole (12) is a cylindrical hole.
4. The press die post system of any one of claims 1-3, further comprising: the air guide grooves (23) are arranged in two ways, and the two air guide grooves (23) are oppositely arranged on two sides of the sliding guide section (21).
5. The press die post system of any one of claims 1-3, further comprising: the tail end of the sliding guide section (21) is provided with a guide part (24), and the guide part (24) is in a truncated cone shape gradually contracting inwards towards the tail end along the axial direction of the sliding guide section (21).
6. The press die post system of claim 5, wherein: a lifting hole (25) which is inwards recessed along the axial direction of the sliding guide section (21) is formed in the center of the tail end of the sliding guide section, and the lifting hole (25) is a threaded hole.
7. The press die post system of any one of claims 1-3, further comprising: the diameter of the sliding guide section (21) of the guide post (2) is D; the length of the interference fit section (22) is L; the diameter of the ejection hole (12) is d; then L is (1.2-1.8) x D; d is (1/3-1/4). times.D.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120677713.7U CN215431364U (en) | 2021-04-02 | 2021-04-02 | Guide pillar system of press die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120677713.7U CN215431364U (en) | 2021-04-02 | 2021-04-02 | Guide pillar system of press die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215431364U true CN215431364U (en) | 2022-01-07 |
Family
ID=79703753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120677713.7U Active CN215431364U (en) | 2021-04-02 | 2021-04-02 | Guide pillar system of press die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215431364U (en) |
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2021
- 2021-04-02 CN CN202120677713.7U patent/CN215431364U/en active Active
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