CN110605441A - Die tool capable of machining cast threads - Google Patents
Die tool capable of machining cast threads Download PDFInfo
- Publication number
- CN110605441A CN110605441A CN201910764121.6A CN201910764121A CN110605441A CN 110605441 A CN110605441 A CN 110605441A CN 201910764121 A CN201910764121 A CN 201910764121A CN 110605441 A CN110605441 A CN 110605441A
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- CN
- China
- Prior art keywords
- inner sleeve
- outer sleeve
- sleeve
- screw
- die
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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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
- B23G9/00—Working screws, bolt heads, or nuts in conjunction with thread cutting, e.g. slotting screw heads or shanks, removing burrs from screw heads or shanks; Finishing, e.g. polishing, any screw-thread
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
- B23G9/00—Working screws, bolt heads, or nuts in conjunction with thread cutting, e.g. slotting screw heads or shanks, removing burrs from screw heads or shanks; Finishing, e.g. polishing, any screw-thread
- B23G9/009—Thread cleaning or repairing
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
The invention discloses a die tool capable of processing cast threads, which comprises an outer sleeve, an inner sleeve and a screw tap; the top of the outer sleeve is provided with a chuck which is used for connecting a tapping machine; the inner sleeve is slidably sleeved in the outer sleeve; an elastic mechanism is arranged between the inner sleeve and the outer sleeve; the screw tap is fixedly connected to one end, far away from the elastic mechanism, of the inner sleeve. The die tool can be used on a common tapping machine and can also be used for processing die-cast threads, so that the processing precision is improved, and the production efficiency is also improved.
Description
Technical Field
The invention relates to the technical field of thread machining equipment, in particular to a die tool capable of machining cast threads.
Background
In the prior art, many production devices involve threaded connections, and a common thread machining method is mainly used for machining threads of parts without threads in advance. In practical production, some parts are cast with threads, for example, the threads at two ends of a water outlet pipe of an aluminum alloy die-casting product JG013 are often cast with low thread precision and need to pass through teeth twice, so that the thread precision is improved. At present, no relevant processing tool can process the external thread which is die-cast, and the external thread can be processed only by a manual die.
However, the conventional manual threading process consumes a lot of time and physical force, the precision of the processed threads is greatly influenced by the operating level of a processor, and the product yield is unstable.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the die tool for machining the cast threads can improve machining precision and production efficiency.
In order to solve the technical problems, the invention adopts the technical scheme that:
a die tool capable of processing cast threads comprises an outer sleeve, an inner sleeve and a screw tap;
the top of the outer sleeve is provided with a chuck which is used for connecting a tapping machine;
the inner sleeve is slidably sleeved in the outer sleeve;
an elastic mechanism is arranged between the inner sleeve and the outer sleeve;
the screw tap is fixedly connected to one end, far away from the elastic mechanism, of the inner sleeve.
The invention has the beneficial effects that: the combination of the inner sleeve, the outer sleeve and the screw tap is utilized, and the machine can complete tooth passing through the matching of a chuck at the top of the outer sleeve and a common tapping machine; the inner sleeve and the outer sleeve can slide relatively, and an elastic mechanism is arranged between the inner sleeve and the outer sleeve; the elastic connection can provide good yielding and guiding performance when the screw tap passes through the teeth, has the function of buffering vibration, enables the passing of the teeth to be smoother, provides more reasonable cutting force required by the following teeth, has less damage to cast threads, and is particularly suitable for processing the die-cast threads; the thread passing is completed by the machine without manually rotating the screw tap, and the rotating central shaft of the machine can be kept vertical all the time, so that the thread passing precision of the machine is greatly improved compared with manual work, and the thread passing efficiency of the machine is greatly improved compared with manual work; the die tool can be used on a common tapping machine and can also be used for processing die-cast threads, so that the processing precision is improved, and the production efficiency is also improved.
Drawings
FIG. 1 is a schematic structural diagram of a die tooling for machining cast threads according to an embodiment of the present invention;
FIG. 2 is a front view of a die tooling for machining cast threads according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view of a die tooling for machining cast threads in accordance with an embodiment of the present invention;
FIG. 4 is a bottom view of a die tooling for machining cast threads in accordance with an embodiment of the present invention;
description of reference numerals:
1. an outer sleeve; 2. an inner sleeve; 3. a chuck; 4. a spring; 5. a screw tap; 6. a screw; 7. and (5) fastening the screw.
Detailed Description
In order to explain technical contents, achieved objects, and effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
Referring to fig. 1 to 4, a die tooling capable of machining cast threads includes an outer sleeve, an inner sleeve and a tap;
the top of the outer sleeve is provided with a chuck which is used for connecting a tapping machine;
the inner sleeve is slidably sleeved in the outer sleeve;
an elastic mechanism is arranged between the inner sleeve and the outer sleeve;
the screw tap is fixedly connected to one end, far away from the elastic mechanism, of the inner sleeve.
From the above description, the beneficial effects of the present invention are: the combination of the inner sleeve, the outer sleeve and the screw tap is utilized, and the machine can complete tooth passing through the matching of a chuck at the top of the outer sleeve and a common tapping machine; the inner sleeve and the outer sleeve can slide relatively, and an elastic mechanism is arranged between the inner sleeve and the outer sleeve; the elastic connection can provide good yielding and guiding performance when the screw tap passes through the teeth, has the function of buffering vibration, enables the passing of the teeth to be smoother, provides more reasonable cutting force required by the following teeth, has less damage to cast threads, and is particularly suitable for processing the die-cast threads; the thread passing is completed by the machine without manually rotating the screw tap, and the rotating central shaft of the machine can be kept vertical all the time, so that the thread passing precision of the machine is greatly improved compared with manual work, and the thread passing efficiency of the machine is greatly improved compared with manual work; the die tool can be used on a common tapping machine and can also be used for processing die-cast threads, so that the processing precision is improved, and the production efficiency is also improved.
Further, the outer sleeve barrel body is provided with a key groove, and the inner sleeve slides in a stroke limited by the key groove.
According to the description, the limit of the key groove to the stroke of the inner sleeve can effectively prevent the inner sleeve from sliding out of the outer sleeve, and production accidents during processing are avoided.
Further, the device also comprises a screw; the inner sleeve barrel body is provided with a threaded hole matched with the screw; the screw penetrates through the key slot and is in threaded connection with the threaded hole; the screw protrudes from the keyway.
According to the above description, the screw penetrates through the key slot to be in threaded connection with the threaded hole, the screw plays a good circumferential fixing role in the inner sleeve, and the phenomenon of slipping between the inner sleeve and the outer sleeve is prevented when the screw passes through the tooth processing. Second, the travel of the inner sleeve is limited by limiting the movement of the screw within the keyway.
Furthermore, the elastic mechanism is a spring, one end of the spring is connected to the top end inside the outer sleeve, and the other end of the spring is connected to the top end outside the inner sleeve.
As can be seen from the above description, the spring is used as the elastic mechanism, the structure is simple, the elastic performance is stable, lubrication is not needed during use, mud pollution is not avoided, and good damping and buffering effects can be provided for the inner sleeve.
Further, the outer diameter of the spring is matched with the inner diameter of the outer sleeve.
According to the above description, the outer diameter of the spring is matched with the inner diameter of the outer sleeve, so that the acting force of the spring on the inner sleeve is more uniform, the force application center of the spring on the inner sleeve can be closer to the geometric center of the inner sleeve, and the smoothness of the teeth passing is improved.
Furthermore, one end, far away from the elastic mechanism, of the inner sleeve is provided with a groove matched with the screw tap.
From the above description, it can be seen that the slot is used for placing the tap, and the matching mode is simple, and has good replaceability.
Furthermore, the outer wall of the groove is provided with a plurality of threaded holes matched with the fastening screws at intervals along the circumferential direction of the outer wall, the fastening screws are in threaded connection with the threaded holes, and the fastening screws penetrate through the outer wall of the groove and are connected with the screw tap.
According to the above description, the screw tap is fixed in the groove of the inner sleeve by the fastening screw, so that the fixing effect is good, and the disassembly and the assembly are convenient.
Furthermore, the central lines of the threaded holes are on the same plane, and the threaded holes are arranged at equal angles.
According to the description, the center lines of the threaded holes are arranged on the same horizontal plane, so that the working surface of the screw tap can be effectively kept perpendicular to the center line of the inner sleeve; the equal-angle arrangement of the threaded holes can effectively ensure that the central line of the screw tap is superposed with the central line of the inner sleeve; the tooth passing precision during processing can be effectively guaranteed.
Further, the inner sleeve and the outer sleeve are subjected to blackening treatment.
According to the description, after the inner sleeve and the outer sleeve are subjected to blackening treatment, a layer of compact metal oxide film is formed on the surfaces of the inner sleeve and the outer sleeve, so that air is effectively isolated, and a good anti-rust effect is achieved.
The first embodiment of the invention is as follows:
referring to fig. 1 to 4, a die tooling capable of machining cast threads includes an outer sleeve 1, an inner sleeve 2 and a tap 5;
the top of the outer sleeve 1 is provided with a chuck 3, and the chuck 3 is used for connecting a tapping machine;
the inner sleeve 2 is slidably sleeved in the outer sleeve 1;
an elastic mechanism is arranged between the inner sleeve 2 and the outer sleeve 1;
the screw tap 5 is fixedly connected to one end of the inner sleeve 2 far away from the elastic mechanism;
referring to fig. 1 and 2, specifically, the outer sleeve 1 has a keyway on its barrel, and the inner sleeve 2 slides in the keyway.
Preferably, the chuck is designed according to the specific clamping requirements of the tapping machine;
specifically, the chuck is a cylindrical head;
preferably, lubricating oil is respectively arranged on the inner sleeve barrel body and the inner wall of the outer sleeve, so that the sliding friction between the inner sleeve and the outer sleeve is reduced, and the antirust effect is achieved.
Referring to fig. 1, 2 and 3, in particular, the present invention further includes a screw 6; the inner sleeve 2 is provided with a threaded hole matched with the screw in the barrel body; the screw 6 passes through the key slot and is in threaded connection with the threaded hole; the screw 6 protrudes out of the keyway.
Preferably, the nominal diameter of the screw is M8.
Referring to fig. 3, specifically, the elastic mechanism is a spring 4, one end of the spring 4 is connected to the top of the inner hole of the outer sleeve 1, and the other end is connected to the top of the inner sleeve 2.
Preferably, the spring is always in a compressed state within the travel of the key slot, and the elastic travel of the spring is not exceeded in the machining process.
Referring to fig. 3, specifically, the outer diameter of the spring 4 is matched with the inner diameter of the outer sleeve 1.
Referring to fig. 1, 3 and 4, specifically, a slot adapted to the tap 5 is formed at an end of the inner sleeve 2 away from the elastic mechanism.
Preferably, the slot is machined by a milling machine or is formed by pre-drilling and then turning.
Referring to fig. 1, 2, 3 and 4, specifically, the screw tap further includes a fastening screw 7, a plurality of threaded holes adapted to the fastening screw 7 are formed in the outer wall of the slot at intervals along the circumferential direction of the outer wall, the fastening screw 7 is screwed with the threaded holes, and the fastening screw 7 passes through the outer wall of the slot and is connected with the screw tap 5.
Preferably, the nominal diameter of the fastening screw is M6.
Referring to fig. 1, 2, 3 and 4, specifically, the center lines of the plurality of threaded holes are on the same plane, and the threaded holes are arranged at equal angles.
Referring to fig. 1, 2 and 3, specifically, the inner sleeve 2 and the outer sleeve 1 are subjected to a blackening treatment.
Preferably, the blackening treatment adopts an alkaline heating process to form an oxide film on the surface of the metal.
When the tool is improved, firstly, an outer sleeve is turned by using a lathe, a cylindrical head at the top end of the outer sleeve is turned according to the size of a chuck on a common tapping machine to be used as a chuck connected with the common tapping machine, a hollow built-in spring is drilled in the center of the outer sleeve, and a key groove is milled on the wall of the outer sleeve to be used as a buffer adjusting groove connected with the inner sleeve; m8 threads are drilled in the center of the inner sleeve in a drilling mode, 3M 6 thread through holes are drilled in the side wall of the head of the inner sleeve and used for replacing a screw tap, and three screws on the side face can lock the screw tap; after the manufacturing is finished, the parts are blackened, and the inner sleeve and the outer sleeve are oiled to reduce friction.
In conclusion, the die tool for processing cast threads provided by the invention utilizes the combination of the inner sleeve, the outer sleeve and the screw tap, and the chuck at the top of the outer sleeve is matched with a common tapping machine to realize that the tapping machine finishes tapping; the inner sleeve and the outer sleeve can slide relatively, and an elastic mechanism is arranged between the inner sleeve and the outer sleeve; the elastic connection can provide good yielding and guiding performance when the screw tap passes through the teeth, has the function of buffering vibration, enables the passing of the teeth to be smoother, provides more reasonable cutting force required by the following teeth, has less damage to cast threads, and is particularly suitable for processing the die-cast threads; the thread passing is completed by the machine without manually rotating the screw tap, and the rotating central shaft of the machine can be kept vertical all the time, so that the thread passing precision of the machine is greatly improved compared with manual work, and the thread passing efficiency of the machine is greatly improved compared with manual work; the die tool can be used on a common tapping machine and can also be used for processing die-cast threads, so that the processing precision is improved, and the production efficiency is also improved; and the screw penetrates through the key groove and is in threaded connection with the threaded hole, the screw plays a good circumferential fixing role on the inner sleeve, and the phenomenon of slipping between the inner sleeve and the outer sleeve is prevented when the screw passes through teeth processing. Secondly, the travel of the inner sleeve is limited by limiting the movement of the screw in the key groove, so that the inner sleeve is prevented from sliding out of the outer sleeve, and production accidents possibly caused during processing are avoided.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to the related technical fields, are included in the scope of the present invention.
Claims (9)
1. A die tool capable of machining cast threads is characterized by comprising an outer sleeve, an inner sleeve and a screw tap;
the top of the outer sleeve is provided with a chuck which is used for connecting a tapping machine;
the inner sleeve is slidably sleeved in the outer sleeve;
an elastic mechanism is arranged between the inner sleeve and the outer sleeve;
the screw tap is fixedly connected to one end, far away from the elastic mechanism, of the inner sleeve.
2. A die tooling as claimed in claim 1, wherein the outer sleeve barrel is provided with a keyway and the inner sleeve slides within a travel limited by the keyway.
3. The die tooling for machining cast threads according to claim 2, further comprising a screw; the inner sleeve barrel body is provided with a threaded hole matched with the screw; the screw penetrates through the key slot and is in threaded connection with the threaded hole; the screw protrudes from the keyway.
4. The die tooling of claim 1, wherein the resilient means is a spring having one end attached to the top of the inner bore of the outer sleeve and the other end attached to the top of the inner sleeve.
5. A die tooling as claimed in claim 4, wherein the outer diameter of the spring is adapted to the inner diameter of the outer sleeve.
6. A die tooling as claimed in claim 1, wherein the end of the inner sleeve remote from the resilient means is provided with a slot adapted to the tap.
7. The die tooling for machining cast threads according to claim 6, further comprising a fastening screw, wherein a plurality of threaded holes matched with the fastening screw are formed in the outer wall of the groove at intervals along the circumferential direction of the outer wall of the groove, the fastening screw is in threaded connection with the threaded holes, and the fastening screw penetrates through the outer wall of the groove to be connected with the tap.
8. The die tooling of claim 7, wherein the center lines of the threaded holes are in the same plane, and the threaded holes are arranged at equal angles.
9. The die tooling of claim 1, wherein the inner sleeve and the outer sleeve are blackened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910764121.6A CN110605441A (en) | 2019-08-19 | 2019-08-19 | Die tool capable of machining cast threads |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910764121.6A CN110605441A (en) | 2019-08-19 | 2019-08-19 | Die tool capable of machining cast threads |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110605441A true CN110605441A (en) | 2019-12-24 |
Family
ID=68890500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910764121.6A Pending CN110605441A (en) | 2019-08-19 | 2019-08-19 | Die tool capable of machining cast threads |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110605441A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE9016414U1 (en) * | 1990-12-03 | 1991-02-21 | ABB Reaktor GmbH, 6800 Mannheim | Device for cleaning the threads of a thread inserted into a blind bore |
| CN203509249U (en) * | 2013-09-18 | 2014-04-02 | 上海西马特机械制造有限公司 | Thread machining device |
| CN106270828A (en) * | 2016-08-09 | 2017-01-04 | 中国人民解放军第五七二工厂 | A kind of deep hole female thread dresser |
| CN206550586U (en) * | 2017-01-21 | 2017-10-13 | 陕煤集团神木张家峁矿业有限公司 | A kind of bolt repairs threading tool |
| CN108723518A (en) * | 2018-07-06 | 2018-11-02 | 沈阳航空航天大学 | A kind of multifunctional safety is self-centering to attack threading device and application method |
| US20190201169A1 (en) * | 2016-11-08 | 2019-07-04 | Christopher R. Goodman | Dental implantoplasty tool for treatment of peri-implantis in dental implants |
-
2019
- 2019-08-19 CN CN201910764121.6A patent/CN110605441A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE9016414U1 (en) * | 1990-12-03 | 1991-02-21 | ABB Reaktor GmbH, 6800 Mannheim | Device for cleaning the threads of a thread inserted into a blind bore |
| CN203509249U (en) * | 2013-09-18 | 2014-04-02 | 上海西马特机械制造有限公司 | Thread machining device |
| CN106270828A (en) * | 2016-08-09 | 2017-01-04 | 中国人民解放军第五七二工厂 | A kind of deep hole female thread dresser |
| US20190201169A1 (en) * | 2016-11-08 | 2019-07-04 | Christopher R. Goodman | Dental implantoplasty tool for treatment of peri-implantis in dental implants |
| CN206550586U (en) * | 2017-01-21 | 2017-10-13 | 陕煤集团神木张家峁矿业有限公司 | A kind of bolt repairs threading tool |
| CN108723518A (en) * | 2018-07-06 | 2018-11-02 | 沈阳航空航天大学 | A kind of multifunctional safety is self-centering to attack threading device and application method |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20191224 |
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| WD01 | Invention patent application deemed withdrawn after publication |