CN216263282U - Split type hot-heading die for forming special-shaped blind hole in head of part - Google Patents
Split type hot-heading die for forming special-shaped blind hole in head of part Download PDFInfo
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- CN216263282U CN216263282U CN202121464407.1U CN202121464407U CN216263282U CN 216263282 U CN216263282 U CN 216263282U CN 202121464407 U CN202121464407 U CN 202121464407U CN 216263282 U CN216263282 U CN 216263282U
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Abstract
The utility model discloses a split type hot heading die for forming a special-shaped blind hole in the head part of a part, which comprises a pre-stressed die sleeve (1), a hard alloy die core (2), a special-shaped hard alloy punching needle (3) and a punching needle fixing sleeve (4), and is characterized in that: the inner cavity of the pre-stressed die sleeve (1) is conical and is matched with the outer surface of the hard alloy die core (2); the special-shaped hard alloy punching needle (3) penetrates through the bottom end of the inner hole of the hard alloy mold core (2) and fixes the tail part in the inner hole of the hard alloy mold core (2) through the punching needle fixing sleeve (4). The punching needle fixing sleeve (4) is chamfered at the position close to the tail end of the special-shaped hard alloy punching needle (3), and the punching needle fixing sleeve (4) is fixed with the special-shaped hard alloy punching needle (3) at the chamfered position by copper brazing. The utility model can prolong the service life of the die by 3-5 times, and the independent punch pin has strong universality.
Description
Technical Field
The utility model belongs to the technical field of machinery, and particularly relates to a split type thermal forming die for forming a special-shaped blind hole in the head of a part made of a material difficult to form.
Background
For a long time, the special-shaped blind hole in the head of the part made of the difficult-to-form material cannot be machined in a machining mode, the electric machining is tried in an earlier stage, the high-end part of the part cannot be machined in an electric machining mode, the efficiency is extremely low, the requirement of the high-end part cannot be met, in order to break through the difficult problem, a hot upsetting forming die is adopted to carry out hot upsetting forming on the special-shaped blind hole of the high-end part, and the machining is not needed in the later stage. Through design and trial upsetting, if the hot-upsetting die is integral, the whole hot-upsetting die can be scrapped as long as the inner special-shaped blind hole punch pin is broken, the service life of the punch pin is short, and the die cost is high.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects and provide the split type hot heading die for forming the special-shaped blind hole in the head part of the part, which can prolong the service life of the die by 3-5 times and has strong independent punch pin universality.
The technical scheme adopted by the utility model is as follows:
the utility model discloses a split type hot heading die for forming a special-shaped blind hole in the head of a part, which comprises a pre-stressed die sleeve, a hard alloy die core, a special-shaped hard alloy punching needle and a punching needle fixing sleeve, wherein: the inner cavity of the prestressed die sleeve is conical and is matched with the outer surface of the hard alloy die core; the special-shaped hard alloy punching needle penetrates through the bottom end of the inner hole of the hard alloy mold core, and the tail part of the special-shaped hard alloy punching needle is fixed in the inner hole of the hard alloy mold core through the punching needle fixing sleeve.
The split type hot-heading die for forming the special-shaped blind hole in the head part of the part is characterized in that: hard alloy mold core hole top is equipped with the round platform, the split type hot-heading mould of special-shaped blind hole shaping in foretell part head, wherein: the special-shaped hard alloy punch pin is in clearance fit with the inner hole of the hard alloy mold core.
The split type hot-heading die for forming the special-shaped blind hole in the head part of the part is characterized in that: and the punching needle fixing sleeve is chamfered at the tail end of the special-shaped hard alloy punching needle, and the punching needle fixing sleeve is fixed with the special-shaped hard alloy punching needle at the chamfered position by copper brazing.
The split type hot-heading die for forming the special-shaped blind hole in the head part of the part is characterized in that: the punch needle fixing sleeve is in interference fit with the special-shaped hard alloy punch needle.
Compared with the prior art, the utility model has obvious beneficial effects, and the technical scheme can show that: according to the utility model, only the independent inner special-shaped blind hole punching pin needs to be replaced after the punching pin is punched, and the whole die does not need to be scrapped; when the inner special-shaped blind holes with different depths and the same shape are upset, the punching needle does not need to be replaced, and only the universal gaskets with different thicknesses need to be added after the punching needle of the independent inner special-shaped blind hole, so that the universality of the independent punching needle is improved; the whole die does not need to be scrapped after the punch pin of the die is punched, so that the utilization rate of parts such as the pre-stressed die sleeve, the die core and the like of the hot-heading die except the independent punch pin is improved, the service life of the hot-heading die is prolonged by 3-5 times, the material cost and the processing cost of the pre-stressed die sleeve and the hard alloy die core are saved, and the use cost of the die is reduced.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic view of the present invention in use.
The labels in the figure are:
1. the die comprises a prestressed die sleeve, 2 hard alloy die cores, 3 special-shaped hard alloy punching pins, 4 punching pin fixing sleeves, 5 an upper die base, 6 an inner special-shaped blind hole hot-heading die, 7 an inner special-shaped blind hole part blank to be headed, 8 a lower die, 9 a lower die base and 10 a universal gasket.
Detailed Description
The following detailed description will be made on specific embodiments, structures, features and effects of the split type hot heading die for forming the irregular blind hole in the head of the part according to the present invention with reference to the accompanying drawings and preferred embodiments.
Referring to fig. 1, the utility model relates to a split type hot heading die for forming a special-shaped blind hole in the head of a part, which comprises a pre-stressed die sleeve 1, a hard alloy die core 2, a special-shaped hard alloy punching needle 3 and a punching needle fixing sleeve 4, wherein: the inner cavity of the pre-stressed die sleeve 1 is conical, the conicity is 5-8', the pre-stressed die sleeve is matched with the outer surface of the hard alloy die core 2 and used for preventing the hard alloy die core from being pulled out when a part is upset, the pre-stressed die sleeve 1 and the hard alloy die core 2 are matched with the interference magnitude of 0.10-0.14, the hard alloy die core 2 is pressed in after the pre-stressed die sleeve 1 is heated during assembly, and the hard alloy die core 2 is subjected to compressive stress, so that the effect of protecting the hard alloy die core 2 is achieved, and the part is prevented from being shattered when being upset; the top end of the inner hole of the hard alloy mold core 2 is provided with a circular truncated cone, the special-shaped hard alloy punching needle 3 penetrates through the bottom end of the inner hole of the hard alloy mold core 2, the tail part of the special-shaped hard alloy punching needle is fixed in the inner hole of the hard alloy mold core 2 through a punching needle fixing sleeve 4, the special-shaped hard alloy punching needle 3 is in clearance fit with the inner hole of the hard alloy mold core 2, and the clearance is 0.01-0.03; the punching needle fixing sleeve 4 is chamfered at a position, close to the tail end of the special-shaped hard alloy punching needle 3, by 1.5 multiplied by 30 degrees and used for copper brazing fixation, the interference magnitude of the punching needle fixing sleeve and the special-shaped hard alloy punching needle 3 is 0.02-0.05, the special-shaped hard alloy punching needle 3 is pressed from the chamfered end after the punching needle fixing sleeve 4 is heated during assembly, and after the punching needle is pressed in, the tail end of the special-shaped hard alloy punching needle 3 and the punching needle fixing sleeve 4 are welded in a chamfering mode through copper brazing and then are ground flat.
Referring to fig. 2, when in use, the special-shaped hard alloy punching pin 6 is arranged in a die cavity of an upper die holder 5 of a press machine, a universal lower die 8 and a blank 7 of a part to be formed and heated with an inner special-shaped blind hole to be upset are arranged on a lower die holder 9, then the blank is upset into the special-shaped blind hole in the head of the part to be formed, and after the special-shaped hard alloy punching pin 3 is punched, the special-shaped hard alloy punching pin 3 is replaced by detaching the special-shaped hard alloy punching pin 6; in addition, when the special-shaped blind holes with the same shape but different depths are formed by upsetting, only universal gaskets with different thicknesses are added behind the end face of the special-shaped hard alloy punch pin 3.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and any simple modification, equivalent change and modification made to the above embodiment according to the technical spirit of the present invention are within the scope of the present invention without departing from the technical spirit of the present invention.
Claims (5)
1. The utility model provides a split type hot-heading mould of dysmorphism blind hole takes shape in part head, includes that prestressing force die sleeve (1), carbide mold core (2), dysmorphism carbide dash needle (3), dash fixed cover of needle (4), its characterized in that: the inner cavity of the pre-stressed die sleeve (1) is conical and is matched with the outer surface of the hard alloy die core (2); the special-shaped hard alloy punching needle (3) penetrates through the bottom end of the inner hole of the hard alloy mold core (2), and the tail part of the special-shaped hard alloy punching needle is fixed in the inner hole of the hard alloy mold core (2) through the punching needle fixing sleeve (4).
2. The split type hot heading die for forming the special-shaped blind hole in the head part of the part as claimed in claim 1, wherein: the top end of the inner hole of the hard alloy mold core (2) is provided with a round table.
3. The split type hot heading die for forming the special-shaped blind hole in the head part of the part as claimed in claim 1, wherein: the special-shaped hard alloy punch pin (3) is in clearance fit with the inner hole of the hard alloy mold core (2).
4. The split type hot heading die for forming the special-shaped blind hole in the head part of the part as claimed in claim 1, 2 or 3, wherein: the punching needle fixing sleeve (4) is chamfered at the position close to the tail end of the special-shaped hard alloy punching needle (3), and the punching needle fixing sleeve (4) is fixed with the special-shaped hard alloy punching needle (3) at the chamfered position by copper brazing.
5. The split type hot heading die for forming the special-shaped blind hole in the head part of the part as claimed in claim 4, wherein: the punch needle fixing sleeve (4) is in interference fit with the special-shaped hard alloy punch needle (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121464407.1U CN216263282U (en) | 2021-06-30 | 2021-06-30 | Split type hot-heading die for forming special-shaped blind hole in head of part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121464407.1U CN216263282U (en) | 2021-06-30 | 2021-06-30 | Split type hot-heading die for forming special-shaped blind hole in head of part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216263282U true CN216263282U (en) | 2022-04-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121464407.1U Active CN216263282U (en) | 2021-06-30 | 2021-06-30 | Split type hot-heading die for forming special-shaped blind hole in head of part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216263282U (en) |
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2021
- 2021-06-30 CN CN202121464407.1U patent/CN216263282U/en active Active
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