CN109128158A - The device and method of screw thread is suppressed simultaneously in hard alloy cylinder both ends - Google Patents
The device and method of screw thread is suppressed simultaneously in hard alloy cylinder both ends Download PDFInfo
- Publication number
- CN109128158A CN109128158A CN201811108709.8A CN201811108709A CN109128158A CN 109128158 A CN109128158 A CN 109128158A CN 201811108709 A CN201811108709 A CN 201811108709A CN 109128158 A CN109128158 A CN 109128158A
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- CN
- China
- Prior art keywords
- threaded mandrel
- hard alloy
- screw thread
- plug
- die sleeve
- Prior art date
- 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.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/02—Compacting only
- B22F3/04—Compacting only by applying fluid pressure, e.g. by cold isostatic pressing [CIP]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/02—Compacting only
- B22F3/03—Press-moulding apparatus therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
- B22F5/06—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of threaded articles, e.g. nuts
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Powder Metallurgy (AREA)
Abstract
The present invention discloses a kind of hard alloy cylinder both ends while suppressing the device and method of screw thread, it is characterized in that, including the first plug, the first threaded mandrel, the second plug, the second threaded mandrel and die sleeve, in a state of use, the first plug, the first threaded mandrel, the second plug and the second threaded mandrel are all concentric with die sleeve；First plug and the second plug are located at the both ends of die sleeve, and fix the first threaded mandrel and the second threaded mandrel respectively, and the first threaded mandrel is connected with the second threaded mandrel along axis direction, are provided with thread in the first threaded mandrel and the second threaded mandrel.The present invention forms screw thread, easy to operate, machining accuracy and high in machining efficiency by compacting hard alloy powder；By changing the diameter of thread, direction in two threaded mandrels, the screw thread of different demands can be obtained at hard alloy cylinder both ends simultaneously, greatly improve processing efficiency, while meet hard alloy cylinder to the matching degree of a variety of different threaded connectors.
Description
Technical field
The invention belongs to solid carbide thread manufacture fields, and in particular to suppress spiral shell simultaneously in a kind of hard alloy cylinder both ends
The device and method of line.
Background technique
Currently, the processing of hard alloy cylinder internal screw thread generallys use machining, working efficiency is low, and machining accuracy is not
It is high.When in use, both ends will usually connect different types of component to hard alloy cylinder, and different components is to hard alloy circle
The internal thread structure at cylinder both ends, size requirements are different, generally use in the production of hard alloy cylinder both ends internal screw thread and cut respectively
Processing is cut, processing efficiency is low, and precision is not high.
Summary of the invention
The present invention is for existing hard alloy cylinder accuracy of screw machining and processing efficiency is low, it is difficult in hard alloy cylinder
The problem of both ends simultaneous processing screw thread, provides a kind of hard alloy cylinder both ends while suppressing the device and method of screw thread.
The present invention adopts the following technical solutions to achieve above-mentioned purpose:
The device of screw thread is suppressed simultaneously in a kind of hard alloy cylinder both ends, which is characterized in that including the first plug, the first spiral shell
Line mandrel, the second plug, the second threaded mandrel and elastic die sleeve, in a state of use, the first plug, the first threaded mandrel, the
Two plugs and the second threaded mandrel are all concentric with elastic die sleeve；First plug and the second plug are located at the two of elastic die sleeve
End, and the first threaded mandrel and the second threaded mandrel are fixed respectively, the first threaded mandrel and the second threaded mandrel are along axis direction
It connects, is provided with thread in the first threaded mandrel and the second threaded mandrel.In the present invention, the first plug, the first threaded mandrel,
Second plug and the second threaded mandrel are all concentric with elastic die sleeve, and the first plug and the second plug fix the first thread core respectively
Axis and the second threaded mandrel ensure that the first threaded mandrel and the second threaded mandrel are indeformable when elastic die sleeve is pressurized, to make
The accuracy of thread that hard alloy cylinder is formed when being pressurized is high；The present invention can suppress screw thread at hard alloy cylinder both ends simultaneously.
Preferably, the first threaded mandrel is identical with the thread diameter in the second threaded mandrel, and direction is identical, can make hard
It is identical that thread size is formed when alloy powder is suppressed, and hand of spiral also identical screw thread.
Preferably, the first threaded mandrel is identical with the thread diameter in the second threaded mandrel, and direction is different, can make hard
It is identical that thread size is formed when alloy powder is suppressed, the different screw thread of hand of spiral.
Preferably, the first threaded mandrel is different with the thread diameter in the second threaded mandrel, and direction is identical, can make hard
It is different that thread size is formed when alloy powder is suppressed, the identical screw thread of hand of spiral.
Preferably, the first threaded mandrel is different with the thread diameter in the second threaded mandrel, and direction is different, can make hard
It is different that thread size is formed when alloy powder is suppressed, hand of spiral also different screw thread.
Preferably, elastic die sleeve uses rubber die sleeve, guarantees uniform force when hard alloy powder is pressurized.
Preferably, the first threaded mandrel and the second threaded mandrel are connected through a screw thread, thus guarantee the first threaded mandrel and
The concentricity of second threaded mandrel, when hard alloy powder being avoided to be pressurized, the first threaded mandrel and the offset of the second threaded mandrel are mentioned
High solid carbide thread suppresses precision.
Preferably, the first threaded mandrel and the second threaded mandrel be by plugging together connection, thus guarantee the first threaded mandrel with
The concentricity of second threaded mandrel, when hard alloy powder being avoided to be pressurized, the first threaded mandrel and the offset of the second threaded mandrel are mentioned
High solid carbide thread suppresses precision.
The method for suppressing the device compacting screw thread of screw thread simultaneously using a kind of hard alloy cylinder both ends of the invention, including such as
Lower step: Step 1: mold assembling and hard alloy powder are packed into: the second threaded mandrel being fixed on the second plug, second
Plug is inserted into fixed in elastic die sleeve, and the second threaded mandrel and the first threaded mandrel are connected and fixed, by hard alloy powder plus
Enter in elastic die sleeve, then the first plug is inserted into elastic die sleeve and is fixed the first threaded mandrel, forms compacting tool set；Step
Two, screw thread is suppressed: the mold for installing hard alloy powder being put into dry bag cold isostatic press and is suppressed, to elasticity when pressurization
Die sleeve circumference carries out balanced compression, and elastic die sleeve both ends are not pressurized；Step 3: demoulding, by the first plug and the second plug from bullet
Property die sleeve take out, the first threaded mandrel and the second threaded mandrel are taken out by rotation mode, then the hard of screw thread will be suppressed and closed
Golden cylinder takes out from elastic die sleeve；Step 4: sintering: obtaining two after the hard alloy cylinder for suppressing screw thread is sintered
Hold screwed hard alloy cylinder.
The beneficial effects of the present invention are:
1, the present invention forms screw thread by compacting hard alloy powder, is not required to be machined out, easy to operate, machining accuracy
With it is high in machining efficiency.
2, the present invention uses two threaded mandrels, can be with by changing the diameter of thread, direction in two threaded mandrels
Screw thread needed for obtaining simultaneously at hard alloy cylinder both ends, greatly improves processing efficiency, while meeting hard alloy circle
Matching degree of the cylinder to a variety of different threaded connectors.
Detailed description of the invention
Fig. 1 is that screw thread is suppressed at hard alloy cylinder both ends when thread diameter of the present invention is identical, direction is also identical simultaneously
Structure drawing of device.
Fig. 2 is identical thread diameter of the present invention, direction asynchronous hard alloy cylinder both ends while suppressing screw thread
Structure drawing of device.
Fig. 3 is that screw thread is suppressed at hard alloy cylinder both ends when thread diameter of the present invention is different, direction is identical simultaneously
Structure drawing of device.
Fig. 4 is that spiral shell is suppressed at hard alloy cylinder both ends when thread diameter of the present invention is different, direction is not also identical simultaneously
The structure drawing of device of line.
Fig. 5 is that the first threaded mandrel and second in the device of screw thread is suppressed at a kind of hard alloy cylinder both ends of the invention simultaneously
Screw thread is using the structure chart being threadedly coupled.
Fig. 6 is that the first threaded mandrel and second in the device of screw thread is suppressed at a kind of hard alloy cylinder both ends of the invention simultaneously
Screw thread is using the structure chart for plugging together connection.
In figure, the 1, first plug；2, the first threaded mandrel；3, elastic die sleeve；4, hard alloy powder；5, the second thread core
Axis；6, the second plug.
Specific embodiment
The present invention is described in detail by 1-6 with reference to the accompanying drawing.
Embodiment one:
As shown in Figs 1-4, the device of screw thread is suppressed at a kind of hard alloy cylinder both ends simultaneously, which is characterized in that including the
One plug 1, the first threaded mandrel 2, the second plug 6, the second threaded mandrel 5 and elastic die sleeve 3, in a state of use, first is stifled
First 1, first threaded mandrel 2, the second plug 6 and the second threaded mandrel 5 are all concentric with elastic die sleeve 3；First plug 1 and second
Plug 6 is located at the both ends of elastic die sleeve 3, and fixes the first threaded mandrel 2 and the second threaded mandrel 5, the first screw thread respectively
Mandrel 2 is connected with the second threaded mandrel 5 along axis direction, is provided with screw thread in the first threaded mandrel 2 and the second threaded mandrel 5
Tooth.
Suppress the method for the device compacting screw thread of screw thread simultaneously using hard alloy cylinder of the present invention both ends: including walking as follows
It is rapid: Step 1: mold assembling and hard alloy powder are packed into: the second threaded mandrel 5 being fixed on the second plug 6, second is stifled
It is fixed in the first elastic die sleeve 3 of 6 insertion, the second threaded mandrel 5 and the first threaded mandrel 2 are connected and fixed, by hard alloy powder 4
It is added in elastic die sleeve 3, then the first plug 1 is inserted into elastic die sleeve 3 to and is fixed the first threaded mandrel 2, form compacting tool set；
Step 2: screw thread is suppressed: the mold for installing hard alloy powder 4 being put into dry bag cold isostatic press and is suppressed, when pressurization
Balanced compression is carried out to elastic 3 circumference of die sleeve, elastic 3 both ends of die sleeve are not pressurized；Step 3: demoulding, by the first plug 1 and second
Plug 6 takes out from elastic die sleeve 3, takes out the first threaded mandrel 2 and the second threaded mandrel 5 by rotation mode, then will suppress
The hard alloy cylinder of screw thread takes out from elastic die sleeve 3；Step 4: sintering: will suppress the hard alloy cylinder of screw thread into
The screwed hard alloy cylinder in both ends is obtained after row sintering.
In the above-described embodiment, elastic die sleeve can use rubber die sleeve.
Embodiment two:
As shown in Figure 1, thread on the basis of embodiment one, in the first threaded mandrel 2 and the second threaded mandrel 5
Diameter is identical, and direction is identical, it is identical that thread size is formed when hard alloy powder 4 can be made to suppress, and hand of spiral is also identical
Screw thread.
Embodiment three:
As shown in Fig. 2, the first threaded mandrel 2 is identical with the thread diameter in the second threaded mandrel 5, direction is different, can
Formation thread size is identical when keeping hard alloy powder pressure 4 processed, the different screw thread of hand of spiral.
Embodiment four:
As shown in figure 3, thread on the basis of embodiment one, in the first threaded mandrel 2 and the second threaded mandrel 5
Diameter is different, and direction is identical, and thread size difference, hand of spiral identical screw thread are formed when hard alloy powder 4 can be made to suppress.
Embodiment five:
As shown in figure 4, thread on the basis of embodiment one, in the first threaded mandrel 2 and the second threaded mandrel 5
Diameter is different, and direction is different, and thread size difference is formed when hard alloy powder 4 can be made to suppress, and hand of spiral is also different
Screw thread.
Embodiment six:
As shown in figure 5, on the basis of one-embodiment of embodiment five, the first threaded mandrel 2 and the second threaded mandrel
5 are connected through a screw thread, to guarantee the concentricity of the first threaded mandrel 2 and the second threaded mandrel 5, avoid hard alloy powder 4
When compression, the first threaded mandrel 2 and the offset of the second threaded mandrel 5 guarantee the same of the first threaded mandrel 2 and the second threaded mandrel 5
Axis degree improves solid carbide thread and suppresses precision.
Embodiment seven:
As shown in fig. 6, on the basis of one-embodiment of embodiment five, the first threaded mandrel 2 and the second threaded mandrel
5 by plugging together connection, to guarantee the concentricity of the first threaded mandrel 2 and the second threaded mandrel 5, avoids hard alloy powder 4
When compression, the first threaded mandrel 2 and the offset of the second threaded mandrel 5 guarantee the same of the first threaded mandrel 2 and the second threaded mandrel 5
Axis degree improves solid carbide thread and suppresses precision.
Claims (9)
1. the device that screw thread is suppressed at a kind of hard alloy cylinder both ends simultaneously, which is characterized in that including the first plug, the first screw thread
Mandrel, the second plug, the second threaded mandrel and elastic die sleeve, in a state of use, the first plug, the first threaded mandrel, second
Plug and the second threaded mandrel are all concentric with elastic die sleeve；First plug and the second plug are located at the two of elastic die sleeve
End, and the first threaded mandrel and the second threaded mandrel are fixed respectively, the first threaded mandrel and the second threaded mandrel are along axis direction
It connects, is provided with thread in the first threaded mandrel and the second threaded mandrel.
2. the device that screw thread is suppressed at a kind of hard alloy cylinder both ends according to claim 1 simultaneously, which is characterized in that the
One threaded mandrel is identical with direction with the thread diameter in the second threaded mandrel.
3. the device that screw thread is suppressed at a kind of hard alloy cylinder both ends according to claim 1 simultaneously, which is characterized in that the
One threaded mandrel is identical with the thread diameter in the second threaded mandrel, and direction is different.
4. the device that screw thread is suppressed at a kind of hard alloy cylinder both ends according to claim 1 simultaneously, which is characterized in that the
One threaded mandrel is different with the thread diameter in the second threaded mandrel, and direction is identical.
5. the device that screw thread is suppressed at a kind of hard alloy cylinder both ends according to claim 1 simultaneously, which is characterized in that the
One threaded mandrel is different with the thread diameter in the second threaded mandrel, and direction is different.
6. the device of screw thread is suppressed at a kind of hard alloy cylinder both ends according to claim 1-5 simultaneously, special
Sign is that the elasticity die sleeve is rubber die sleeve.
7. the device of screw thread is suppressed at a kind of hard alloy cylinder both ends according to claim 1-5 simultaneously, special
Sign is that the first threaded mandrel and the second threaded mandrel are connected through a screw thread.
8. the device of screw thread is suppressed at a kind of hard alloy cylinder both ends according to claim 1-5 simultaneously, special
Sign is that the first threaded mandrel and the second threaded mandrel are by plugging together connection.
9. suppressing the device compacting spiral shell of screw thread simultaneously using a kind of described in any item hard alloy cylinder both ends claim 1-5
The method of line, which is characterized in that Step 1: mold assembling and hard alloy powder are packed into: the second threaded mandrel is fixed on the
On two plugs, the second plug is inserted into elastic die sleeve and fixes, and the second threaded mandrel and the first threaded mandrel are connected and fixed, will be hard
Matter alloy powder is added in elastic die sleeve, then is inserted into elastic die sleeve and fixes the first threaded mandrel for the first plug, forms pressure
Molding jig；Step 2: screw thread is suppressed: the mold for installing hard alloy powder is put into dry bag cold isostatic press and is suppressed,
Balanced compression is carried out to elastic die sleeve circumference when pressurization, elastic die sleeve both ends are not pressurized；Step 3: demoulding, by the first plug and
Second plug is covered from springform to be taken out, and takes out the first threaded mandrel and the second threaded mandrel by rotation mode, then will suppress
The hard alloy cylinder of screw thread takes out from elastic die sleeve；Step 4: sintering: the hard alloy cylinder for suppressing screw thread is carried out
The screwed hard alloy cylinder in both ends is obtained after sintering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811108709.8A CN109128158A (en) | 2018-09-21 | 2018-09-21 | The device and method of screw thread is suppressed simultaneously in hard alloy cylinder both ends |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811108709.8A CN109128158A (en) | 2018-09-21 | 2018-09-21 | The device and method of screw thread is suppressed simultaneously in hard alloy cylinder both ends |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109128158A true CN109128158A (en) | 2019-01-04 |
Family
ID=64823361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811108709.8A Pending CN109128158A (en) | 2018-09-21 | 2018-09-21 | The device and method of screw thread is suppressed simultaneously in hard alloy cylinder both ends |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109128158A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0890138A (en) * | 1994-09-13 | 1996-04-09 | Daiyonki Chishitsu Kenkyusho:Kk | Manufacture of forged product providing screw part |
| JP2010047806A (en) * | 2008-08-22 | 2010-03-04 | Hitachi Powdered Metals Co Ltd | Molding die device and method for molding molded body having female screw part-fitted shaft hole using the same |
| CN102398031A (en) * | 2011-10-22 | 2012-04-04 | 四川科力特硬质合金股份有限公司 | Hard alloy product pressing die with major spiral on inner circle and shaping method |
| CN103071801A (en) * | 2013-02-05 | 2013-05-01 | 江西稀有稀土金属钨业集团有限公司 | Mold and method for pressing hard alloy formed press blanks with double inclined holes |
| CN108394067A (en) * | 2015-07-14 | 2018-08-14 | 乌鲁木齐九品芝麻信息科技有限公司 | A kind of mold including lid Leave out thread mechanism |
| CN209077784U (en) * | 2018-09-21 | 2019-07-09 | 广西梧州港德硬质合金制造有限公司 | The device of screw thread is suppressed simultaneously in hard alloy cylinder both ends |
-
2018
- 2018-09-21 CN CN201811108709.8A patent/CN109128158A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0890138A (en) * | 1994-09-13 | 1996-04-09 | Daiyonki Chishitsu Kenkyusho:Kk | Manufacture of forged product providing screw part |
| JP2010047806A (en) * | 2008-08-22 | 2010-03-04 | Hitachi Powdered Metals Co Ltd | Molding die device and method for molding molded body having female screw part-fitted shaft hole using the same |
| CN102398031A (en) * | 2011-10-22 | 2012-04-04 | 四川科力特硬质合金股份有限公司 | Hard alloy product pressing die with major spiral on inner circle and shaping method |
| CN103071801A (en) * | 2013-02-05 | 2013-05-01 | 江西稀有稀土金属钨业集团有限公司 | Mold and method for pressing hard alloy formed press blanks with double inclined holes |
| CN108394067A (en) * | 2015-07-14 | 2018-08-14 | 乌鲁木齐九品芝麻信息科技有限公司 | A kind of mold including lid Leave out thread mechanism |
| CN209077784U (en) * | 2018-09-21 | 2019-07-09 | 广西梧州港德硬质合金制造有限公司 | The device of screw thread is suppressed simultaneously in hard alloy cylinder both ends |
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