CN209077785U - A kind of producing device of carbide thin round tube internal screw thread - Google Patents
A kind of producing device of carbide thin round tube internal screw thread Download PDFInfo
- Publication number
- CN209077785U CN209077785U CN201821551671.7U CN201821551671U CN209077785U CN 209077785 U CN209077785 U CN 209077785U CN 201821551671 U CN201821551671 U CN 201821551671U CN 209077785 U CN209077785 U CN 209077785U
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- CN
- China
- Prior art keywords
- plug
- die sleeve
- screw thread
- round tube
- internal screw
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Powder Metallurgy (AREA)
- Metal Extraction Processes (AREA)
Abstract
The utility model discloses a kind of producing device of carbide thin round tube internal screw thread, which is characterized in that including the first plug, the second plug, threaded mandrel and die sleeve, in a state of use, the first plug, threaded mandrel, the second plug are all concentric with die sleeve；First plug and the second plug are located at the both ends of die sleeve, and the both ends of fixed thread mandrel respectively, are provided with thread in threaded mandrel.The utility model forms internal screw thread, easy to operate, machining accuracy and high in machining efficiency by compacting hard alloy powder.
Description
Technical field
The utility model belongs to solid carbide thread manufacture field, and in particular to a kind of carbide thin round tube internal screw thread
Producing device.
Background technique
Currently, the processing of hard alloy round tube internal screw thread generallys use machining, working efficiency is low, and process is numerous
It is trivial, and machining accuracy is not high.Chinese invention patent application CN107695618A discloses a kind of molding of carbide alloy screwed hole
Method, this method is using PEG as forming agent, and raw material generates mixture after adding alcohol to grind and being spray-dried, and mixture is again
By compression moulding, pass through CNC milling machine, lathe or machining center, using the dedicated tool of special material, accurate screw thread
Size calculates, and processing has the threaded hole of preset parameter on compacting base, and last sinter molding obtains required threaded hole.It should
Method will be machined out after hard alloy compression moulding, is processed by means such as CNC milling machines and is obtained threaded hole, this method work
Sequence is complicated, requires height to milling machine, processing efficiency is low.
Summary of the invention
The utility model is for existing hard alloy round tube internal thread machining precision is not high and processing efficiency is low and to adding
Construction equipment requires the problems such as high, provides a kind of producing device of carbide thin round tube internal screw thread.
The utility model adopts the following technical solutions to achieve above-mentioned purpose:
A kind of producing device of carbide thin round tube internal screw thread, which is characterized in that including the first plug, the second plug,
Threaded mandrel and die sleeve, in a state of use, the first plug, threaded mandrel, the second plug are all concentric with die sleeve；First plug
It is equipped with round hole with the second plug disc center, internal diameter is matched with threaded mandrel outer diameter, the first plug and the second plug difference
Positioned at the both ends of die sleeve, and distinguish the both ends of fixed thread mandrel, is provided with thread in threaded mandrel.The utility model compacting
The method of internal screw thread: Step 1: die-filling: threaded mandrel being inserted on the second plug first, then by the second plug and threaded mandrel
It is inserted into from die sleeve one end and is fixed with die sleeve, hard alloy powder is then added into die sleeve, finally by the first plug from die sleeve
The other end is inserted in threaded mandrel and fixes with die sleeve, forms compacting tool set；Step 2: screw thread is suppressed: hard alloy will be installed
The mold of powder is put into dry bag cold isostatic press and is suppressed, and when pressurization makes die sleeve circumference equilibrium be pressurized, and die sleeve both ends are not applied
Plus-pressure；Step 3: demoulding, the second plug is first taken out and is detached from threaded mandrel, then from die sleeve threaded mandrel along spiral shell
Line tooth opposite direction slowly screws out, and removes the first plug, finally takes out the hard alloy round tube suppressed out of die sleeve；Step
Four, it is sintered: obtaining band internal thread hard alloy round tube after the hard alloy round tube for suppressing internal screw thread is sintered.
Preferably, die sleeve uses rubber die sleeve, guarantees circumferentially producing balanced forces when compacting.
Preferably, different directions can be set in the thread in threaded mandrel, thus, meet hard alloy round tube to non-
Mark the demand of screw thread.
The beneficial effects of the utility model are:
The utility model forms internal screw thread by compacting hard alloy powder, is not required to be machined out, easy to operate, processing
Precision and high in machining efficiency reduces processing cost without the use of equipment such as complicated CNC milling machines.
Detailed description of the invention
Fig. 1 is a kind of producing device structure chart of carbide thin round tube internal screw thread of the utility model.
In figure, the 1, first plug；2, hard alloy powder；3, die sleeve；4, threaded mandrel；5, thread；6, the second plug.
Specific embodiment
1 pair of the utility model is described in detail with reference to the accompanying drawing.
As shown in Figure 1, a kind of producing device of carbide thin round tube internal screw thread, which is characterized in that including the first plug
1, the second plug 6, threaded mandrel 4 and die sleeve 3, in a state of use, the first plug 1, threaded mandrel 4, the second plug 6 all with mould
It is concentric to cover 3；The disc center of first plug 1 and the second plug 6 is equipped with round hole, and internal diameter is matched with 4 outer diameter of threaded mandrel,
First plug 1 and the second plug 6 are located at the both ends of die sleeve 3, and the both ends of fixed thread mandrel 4 respectively, in threaded mandrel 4
It is provided with thread 5.The method of the utility model compacting internal screw thread: Step 1: die-filling: threaded mandrel 4 being inserted in second first
In the round hole of plug 6, then the second plug 6 and threaded mandrel 4 are inserted into from 3 one end of die sleeve and fixed with die sleeve 3, then to mould
Hard alloy powder 2 is added in set 3, finally first stifled 1 is inserted in threaded mandrel 4 from 3 other end of die sleeve and is consolidated with die sleeve 3
It is fixed, form compacting tool set；Step 2: screw thread is suppressed: the mold for installing hard alloy powder 2 is put into dry bag cold isostatic press
It is suppressed, when pressurization makes 3 circumference equilibrium of die sleeve be pressurized, and 3 both ends of die sleeve do not apply pressure；Step 3: demoulding, is first blocked up second
First 6 take out from die sleeve 3 and are detached from threaded mandrel 4, then threadingly 5 opposite direction of tooth slowly screws out threaded mandrel 4, remove the
One plug 1 finally takes out the hard alloy round tube suppressed out of die sleeve 3；Step 4: sintering: internal screw thread will be suppressed
Hard alloy round tube obtains band internal thread hard alloy round tube after being sintered.
In the above-described embodiment, die sleeve can use rubber die sleeve, guarantee when hard alloy tube body is pressurized along die sleeve circle
All producing balanced forces.
In the above-described embodiment, different directions can be set in the thread in threaded mandrel, thus, meet hard conjunction
Demand of the golden round tube to nonstandard screw thread.
Claims (3)
1. a kind of producing device of carbide thin round tube internal screw thread, which is characterized in that including the first plug, the second plug, spiral shell
Line mandrel and die sleeve, in a state of use, the first plug, threaded mandrel, the second plug are all concentric with die sleeve；First plug and
Second plug disc center is equipped with round hole, and internal diameter is matched with threaded mandrel outer diameter, and the first plug and the second plug distinguish position
In the both ends of die sleeve, and distinguish the both ends of fixed thread mandrel, is provided with thread in threaded mandrel.
2. a kind of producing device of carbide thin round tube internal screw thread according to claim 1, which is characterized in that the mould
Set is Rubber membrane cover.
3. a kind of producing device of carbide thin round tube internal screw thread according to claim 1, which is characterized in that thread core
Different directions can be set in thread on axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821551671.7U CN209077785U (en) | 2018-09-21 | 2018-09-21 | A kind of producing device of carbide thin round tube internal screw thread |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821551671.7U CN209077785U (en) | 2018-09-21 | 2018-09-21 | A kind of producing device of carbide thin round tube internal screw thread |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209077785U true CN209077785U (en) | 2019-07-09 |
Family
ID=67117251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821551671.7U Expired - Fee Related CN209077785U (en) | 2018-09-21 | 2018-09-21 | A kind of producing device of carbide thin round tube internal screw thread |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209077785U (en) |
-
2018
- 2018-09-21 CN CN201821551671.7U patent/CN209077785U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190709 |