CN210848164U - Hard alloy cold heading mould with protection function - Google Patents
Hard alloy cold heading mould with protection function Download PDFInfo
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- CN210848164U CN210848164U CN201921893345.9U CN201921893345U CN210848164U CN 210848164 U CN210848164 U CN 210848164U CN 201921893345 U CN201921893345 U CN 201921893345U CN 210848164 U CN210848164 U CN 210848164U
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Abstract
The utility model discloses fastener processing technology field, concretely relates to carbide cold-heading mould with protect function. The punching die comprises an upper die, a lower die and a lower die base, wherein a cylindrical groove is formed in the upper die, and an upper die punching rod is arranged in the cylindrical groove; a cylindrical groove is also formed in the lower die, and a lower die punching rod is arranged in the cylindrical groove; the method is characterized in that: the bottom of the lower die is provided with a guide sleeve, the outer side of the guide sleeve is provided with four first wedge-shaped blocks, and the lower parts of the first wedge-shaped blocks are provided with spring limiting blocks; the bottom of the lower die is sleeved inside the lower die base. The utility model relates to a can slow down hard alloy cold-heading mould with protect function of the rigid contact of mould and bed die.
Description
Technical Field
The utility model discloses fastener processing technology field, concretely relates to carbide cold-heading mould with protect function.
Background
The hard alloy is an alloy material which is made of hard compounds of refractory metals and bonding metals through a powder metallurgy process; the hard alloy has a series of excellent performances of high hardness, wear resistance, good strength and toughness, heat resistance, corrosion resistance and the like, particularly high hardness and wear resistance, basically keeps unchanged even at the temperature of 500 ℃, and still has high hardness at the temperature of 1000 ℃. Cemented carbide is widely used as a tool material, such as turning tools, milling cutters, planing tools, drill bits, boring tools and the like, for cutting cast iron, nonferrous metals, plastics, chemical fibers, graphite, glass, stone and common steel, and also for cutting refractory steel, stainless steel, high manganese steel, tool steel and other materials which are difficult to process. In the existing hard alloy cold heading die, an upper die is in rigid contact with a lower die for a long time in the die extrusion process, so that a contact surface between the upper die and the lower die is damaged, and the lower die needs to be replaced when the contact surface of the lower die is damaged, so that the production cost is increased, the working efficiency is reduced, and the hard alloy cold heading die with the protection function is provided.
SUMMERY OF THE UTILITY MODEL
In view of this, the present application provides a hard alloy cold heading die with a protection function, which can slow down the rigid contact between an upper die and a lower die, so as to solve the problem of the damage to the contact surface of the lower die in the prior art.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a hard alloy cold heading die with a protection function comprises an upper die 2, a lower die 1 and a lower die base 3, wherein a cylindrical groove is formed in the upper die 2, and an upper die stamping rod 201 is arranged in the cylindrical groove; a cylindrical groove is also formed in the lower die, and a lower die stamping rod 101 is arranged in the cylindrical groove; the method is characterized in that: the bottom of the lower die 1 is provided with a guide sleeve 11, the outer side of the guide sleeve 11 is provided with four first wedge-shaped blocks 102, and the lower part of each first wedge-shaped block 102 is provided with a spring limiting block 103; the bottom of the lower die 1 is sleeved in the lower die base 3.
Further, a supporting plate 301 is arranged at the bottom of the lower die base 3, a bolt hole 302 is arranged in the circumferential direction of the supporting plate 301, and the bolt hole 302 is fixed with the lower die fixing device through a bolt.
Further, the top of the lower die base 3 is provided with a through hole 303, and the guide sleeve 11 is sleeved in the through hole 303.
Further, the bottom of the lower die base 3 is provided with four second wedge-shaped blocks 304, a wedge surface of each second wedge-shaped block 304 is in contact with a wedge surface of the first wedge-shaped block 102, a sliding groove 305 is formed in the lower portion of each second wedge-shaped block 304, and the second wedge-shaped blocks 304 can slide left and right in the sliding grooves 305.
Further, a first telescopic rod 306 and a second telescopic rod 308 are sequentially arranged on the right side of the second wedge-shaped block 304 from top to bottom, a first spring 307 is arranged on the outer side of the first telescopic rod 306, and a second spring 309 is arranged on the outer side of the second telescopic rod 308.
Further, a third spring 310 is arranged at the center of the bottom of the lower mold base 3, and the upper part of the third spring 310 contacts with the spring limiting block 103.
The invention has the advantages and beneficial effects that: in the extrusion process of the hard alloy cold heading die with the protection function, the lower die base 3 slows down the rigid contact between the upper die and the lower die, so that the damage of a contact surface between the upper die and the lower die is relieved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only part of the embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Drawings
Fig. 1 is the schematic diagram of the upper die structure of the present invention.
Fig. 2 is the schematic view of the lower mold structure of the present invention.
Fig. 3 is a schematic structural view of the lower mold base of the present invention.
Fig. 4 is a top view of the lower mold base of the present invention.
Fig. 5 is a schematic cross-sectional view of the lower mold base of the present invention in the direction of a-a.
In the figure: 1-lower die, 11-guide sleeve, 101-lower die punching rod, 102-first wedge block, 103-spring limiting block, 2-upper die, 201-upper die punching rod, 3-lower die base, 301-supporting plate, 302-bolt hole, 303-through hole, 304-second wedge block, 305-chute, 306-first telescopic rod, 307-first spring, 308-second telescopic rod, 309-second spring and 310-third spring.
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
Embodiment 1, as shown in fig. 1-4, the utility model provides a hard alloy cold heading die with protection function, which comprises an upper die 2, a lower die 1 and a lower die base 3, wherein a cylindrical groove is formed in the upper die 2, and an upper die punch 201 is arranged in the cylindrical groove; a cylindrical groove is also formed in the lower die, and a lower die stamping rod 101 is arranged in the cylindrical groove; the bottom of the lower die 1 is provided with a guide sleeve 11, the outer side of the guide sleeve 11 is provided with four first wedge-shaped blocks 102, the number of the first wedge-shaped blocks 102 is equal to the number of the first wedge-shaped blocks 102, and the lower part of each first wedge-shaped block 102 is provided with a spring limiting block 103; the bottom of the lower die 1 is sleeved in the lower die base 3; a supporting plate 301 is arranged at the bottom of the lower die base 3, bolt holes 302 are formed in the circumferential direction of the supporting plate 301, and the bolt holes 302 are fixed with the lower die fixing device through bolts; the top of the lower die base 3 is provided with a through hole 303, the guide sleeve 11 is sleeved in the through hole 303, the bottom of the lower die base 3 is provided with four second wedge-shaped blocks 304, the wedge-shaped surface of each second wedge-shaped block 304 is in contact with the wedge-shaped surface of the corresponding first wedge-shaped block 102, the right side of each second wedge-shaped block 304 is sequentially provided with a first telescopic rod 306 and a second telescopic rod 308 from top to bottom, the outer side of each first telescopic rod 306 is provided with a first spring 307, the outer side of each second telescopic rod 308 is provided with a second spring 309, when the contact force between the upper die 2 and the lower die 1 reaches a certain degree, the contact force takes the yield critical point of the upper die 2 and the lower die 1 as the telescopic critical point, the second wedge-shaped blocks 304 can slide left and right in the sliding grooves 305, the first springs 307 and the second springs 309 can absorb a part of force, so as to achieve the effect of protecting the contact surfaces of the lower die 1 and the upper die 2, and the right side of the second wedge-, And a second telescopic rod 308, wherein a first spring 307 is arranged on the outer side of the first telescopic rod 306, and a second spring 309 is arranged on the outer side of the second telescopic rod 308.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. A hard alloy cold heading die with a protection function comprises an upper die (2), a lower die (1) and a lower die base (3), wherein a cylindrical groove is formed in the upper die (2), and an upper die punching rod (201) is arranged in the cylindrical groove; a cylindrical groove is also formed in the lower die, and a lower die stamping rod (101) is arranged in the cylindrical groove; the method is characterized in that: the bottom of the lower die (1) is provided with a guide sleeve (11), the outer side of the guide sleeve (11) is provided with four first wedge-shaped blocks (102), and the lower parts of the first wedge-shaped blocks (102) are provided with spring limiting blocks (103); the bottom of the lower die (1) is sleeved inside the lower die base (3).
2. The hard alloy cold heading die with the protection function as claimed in claim 1, wherein: the bottom of lower mould base (3) be equipped with backup pad (301), be equipped with bolt hole (302) on the circumferencial direction of backup pad (301), bolt hole (302) are fixed with lower mould fixing device through the bolt.
3. The hard alloy cold heading die with the protection function as claimed in claim 1, wherein: the top of the lower die base (3) is provided with a through hole (303), and the guide sleeve (11) is sleeved in the through hole (303).
4. The hard alloy cold heading die with the protection function as claimed in claim 1, wherein: the bottom of the lower die base (3) is provided with four second wedge blocks (304), a wedge surface of each second wedge block (304) is in contact with a wedge surface of the corresponding first wedge block (102), a sliding groove (305) is formed in the lower portion of each second wedge block (304), and the second wedge blocks (304) can slide left and right in the sliding grooves (305).
5. The hard alloy cold heading die with the protection function as claimed in claim 4, wherein: the right side of the second wedge block (304) is provided with a first telescopic rod (306) and a second telescopic rod (308) from top to bottom in sequence, the outer side of the first telescopic rod (306) is provided with a first spring (307), and the outer side of the second telescopic rod (308) is provided with a second spring (309).
6. The hard alloy cold heading die with the protection function as claimed in claim 1, wherein: the center of the bottom of the lower die base (3) is provided with a third spring (310), and the upper part of the third spring (310) is in contact with the spring limiting block (103).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921893345.9U CN210848164U (en) | 2019-11-05 | 2019-11-05 | Hard alloy cold heading mould with protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921893345.9U CN210848164U (en) | 2019-11-05 | 2019-11-05 | Hard alloy cold heading mould with protection function |
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| Publication Number | Publication Date |
|---|---|
| CN210848164U true CN210848164U (en) | 2020-06-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921893345.9U Active CN210848164U (en) | 2019-11-05 | 2019-11-05 | Hard alloy cold heading mould with protection function |
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| CN (1) | CN210848164U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112916781A (en) * | 2021-01-25 | 2021-06-08 | 兴三星云科技有限公司 | Die and process for restraining stainless steel plate from cold heading and extrusion deformation |
-
2019
- 2019-11-05 CN CN201921893345.9U patent/CN210848164U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112916781A (en) * | 2021-01-25 | 2021-06-08 | 兴三星云科技有限公司 | Die and process for restraining stainless steel plate from cold heading and extrusion deformation |
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