CN201714935U - Hole-locating screw-butting overlong screw - Google Patents
Hole-locating screw-butting overlong screw Download PDFInfo
- Publication number
- CN201714935U CN201714935U CN2010202625300U CN201020262530U CN201714935U CN 201714935 U CN201714935 U CN 201714935U CN 2010202625300 U CN2010202625300 U CN 2010202625300U CN 201020262530 U CN201020262530 U CN 201020262530U CN 201714935 U CN201714935 U CN 201714935U
- Authority
- CN
- China
- Prior art keywords
- screw
- hole
- locating shaft
- leading screw
- butting
- 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.)
- Expired - Fee Related
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Abstract
The utility model belongs to mechanical accessories and particularly relates to a hole-locating screw-butting overlong screw which comprises a first section of screw (1), wherein one end of the first section of screw (1) after rough turning is provided with a locating shaft (1-1), connecting external threads (1-2) and an initial locating shaft (1-3); one end of a second section of screw (2) butting with the first section of screw after rough turning is provided with a locating shaft hole (2-1), connecting internal threads (2-2) and an initial locating shaft hole (2-3); the locating shaft (1-1) is clearance fitted and inserted in the locating shaft hole (2-1); the connecting external threads (1-2) are threadedly connected with the connecting internal threads (2-2); and the initial locating shaft (1-3) is clearance fitted and inserted in the initial locating shaft hole (2-3). The utility model solves the problems of incapable manufacturing of the overlong screw owing to limitations on material specifications and equipment processing range and has the advantages that the production cost is lowered, the processing is convenient, and the working efficiency is improved.
Description
Technical field
The utility model belongs to mechanical fitting, particularly a kind of hole positioning threads butt joint overlength leading screw.
Background technique
Along with constant development of economy, continuing to bring out of heavy mechanical equipment, demand to the overlength leading screw is increasing, though existing large-scale leading screw lathe can satisfy wherein a part of demand, but owing to be subjected to the restriction of material specification length and apparatus processing length, become a difficult problem in the processing for the large-scale leading screw of some overlength.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned technical deficiency, provides a kind of and reduces cost, makes things convenient for the hole positioning threads of processing to dock the overlength leading screw.
The technological scheme that the utility model technical solution problem adopts is: hole positioning threads butt joint overlength leading screw comprises the first segment leading screw, an end that is characterized in rough turn first segment leading screw is provided with positioning shaft, connects outside thread, initial position axle, an end that docks the joint of second after rough turn leading screw with it is provided with positioning shaft hole, connects internal thread, initial position axis hole, the positioning shaft Spielpassung is inserted in the positioning shaft hole, connect outside thread and be threaded with being connected internal thread, the cooperation of initial position between centers crack is inserted in the initial position axis hole.
The beneficial effects of the utility model are: hole positioning threads butt joint overlength leading screw has overcome because of being subjected to the restriction of material specification and apparatus processing scope can not make the difficult problem of overlength leading screw, has reduced cost of production, and convenient processing has improved working efficiency.
Description of drawings
Specify with embodiment below in conjunction with accompanying drawing.
Fig. 1 is the structure sectional view of hole positioning threads butt joint overlength leading screw.
Among the figure, 1-first segment leading screw; The 1-1-positioning shaft; 1-2-connects outside thread; 1-3-initial position axle; The 2-second joint leading screw; The 2-1-positioning shaft hole; 2-2-connects internal thread; 2-3-initial position axis hole; The 3-butted line;
Embodiment
Embodiment, with reference to accompanying drawing 1, one end of the first segment leading screw 1 after hole positioning threads butt joint overlength leading screw is rough turn is provided with positioning shaft 1-1, connects outside thread 1-2, initial position axle 1-3, be provided with positioning shaft hole 2-1 with an end on its butt joint second after rough turn joint leading screw 2, be connected internal thread 2-2, initial position axis hole 2-3, positioning shaft 1-1 Spielpassung is inserted among the positioning shaft hole 2-1, connection outside thread 1-2 is screwed into to connect among the internal thread 2-2 and is threaded, and initial position axle 1-3 Spielpassung is inserted among the initial position axis hole 2-3.After the butt joint, with the screw thread of rough turn first segment leading screw 1 car to size requirement, make the long screw thread transition lead-in wire of 600mm from the second joint leading screw 2 of butted line 3 after rough turn simultaneously, unload first segment leading screw 1 then, the second joint leading screw 2 is continued car to finished product along screw thread transition lead-in wire, if there is more piece all can adopt the butt joint that uses the same method.
Claims (1)
1. a hole positioning threads is docked the overlength leading screw, comprise first segment leading screw (1), an end that it is characterized in that rough turn first segment leading screw (1) is provided with positioning shaft (1-1), connect outside thread (1-2), initial position axle (1-3), an end that docks the joint leading screw of second after rough turn (2) with it is provided with positioning shaft hole (2-1), connect internal thread (2-2), initial position axis hole (2-3), positioning shaft (1-1) Spielpassung is inserted in the positioning shaft hole (2-1), connect outside thread (1-2) and be threaded with being connected internal thread (2-2), initial position axle (1-3) Spielpassung is inserted in the initial position axis hole (2-3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202625300U CN201714935U (en) | 2010-07-15 | 2010-07-15 | Hole-locating screw-butting overlong screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202625300U CN201714935U (en) | 2010-07-15 | 2010-07-15 | Hole-locating screw-butting overlong screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201714935U true CN201714935U (en) | 2011-01-19 |
Family
ID=43460931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202625300U Expired - Fee Related CN201714935U (en) | 2010-07-15 | 2010-07-15 | Hole-locating screw-butting overlong screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201714935U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106969111A (en) * | 2017-05-23 | 2017-07-21 | 上海机床厂有限公司 | Precision Lengthening leading screw and manufacture method |
| CN108194599A (en) * | 2017-12-22 | 2018-06-22 | 中山市榄商置业发展有限公司 | A kind of Precision Lengthening leading screw and manufacturing method |
-
2010
- 2010-07-15 CN CN2010202625300U patent/CN201714935U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106969111A (en) * | 2017-05-23 | 2017-07-21 | 上海机床厂有限公司 | Precision Lengthening leading screw and manufacture method |
| CN108194599A (en) * | 2017-12-22 | 2018-06-22 | 中山市榄商置业发展有限公司 | A kind of Precision Lengthening leading screw and manufacturing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110119 Termination date: 20150715 |
|
| EXPY | Termination of patent right or utility model |