CN104525803A - Clamp for machining screw thread outside motorcycle thin-wall sleeve - Google Patents
Clamp for machining screw thread outside motorcycle thin-wall sleeve Download PDFInfo
- Publication number
- CN104525803A CN104525803A CN201410819609.1A CN201410819609A CN104525803A CN 104525803 A CN104525803 A CN 104525803A CN 201410819609 A CN201410819609 A CN 201410819609A CN 104525803 A CN104525803 A CN 104525803A
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- China
- Prior art keywords
- thin
- rotating shaft
- studs
- motorcycle
- base plate
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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
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
- B21H3/00—Making helical bodies or bodies having parts of helical shape
- B21H3/02—Making helical bodies or bodies having parts of helical shape external screw-threads ; Making dies for thread rolling
- B21H3/04—Making by means of profiled-rolls or die rolls
- B21H3/042—Thread-rolling heads
- B21H3/044—Thread-rolling heads working axially
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The invention discloses a clamp for machining a screw thread outside a motorcycle thin-wall sleeve. The clamp for machining the screw thread outside the motorcycle thin-wall sleeve comprises a rotary shaft, a top plate, a base plate and double-end studs. The rotary shaft is in thread connection with the top plate. The double-end studs are arranged between the top plate and the base plate. Screw-in ends of the double-end studs are in thread connection with the base plate. Fastening ends of the double-end studs are connected with the top plate. Tightening rollers are arranged on the double-end studs. Positioning sleeves are arranged between the tightening rollers and the top plate, and the double-end studs pass through the positioning sleeves. Positioning nuts are arranged on the double-end studs, and the positioning nuts are located between the tightening rollers and the base plate. The fastening ends of the double-end studs are provided with locking nuts. A screw thread part, a smooth part and a clamping part are sequentially arranged on the rotary shaft from the top to the bottom. The smooth part of the rotary shaft is provided with an annular cover. The annular cover is provided with positioning screws. Screw thread ends of the positioning screws are provided with elastic blocks. A clamping portion of the rotary shaft is sleeved with an expanding sleeve. The clamp for machining the screw thread outside the motorcycle thin-wall sleeve overcomes the defects in the prior art that the rejection rate is high when machining a thin-wall sleeve which the wall thickness of the thin-wall sleeve is less than 1mm and the machining efficiency if low.
Description
Technical field
The present invention relates to thin-wall sleeve processing clamp field, being specifically related to a kind of for processing the externally threaded fixture of motorcycle thin-wall sleeve.
Background technology
In manufacturing industry, often can run into the processing of screw element, be all process on lathe usually.But for the processing of some thin-wall parts, lathe is difficult to process.Thin-wall part due to its wall too thin yielding when clamping, particularly on lathe, add man-hour, the cutting force arrived is very large, and the heat of generation makes thin-wall part be out of shape.
In daily life, the fuel tank cap of motorcycle generally adopts threaded thin-walled thread bush, particularly for participate in professional race motorcycle on fuel tank cap general thickness all below 1 millimeter.Heavy several grams of tare, just likely changes result of the match in play.But prior art needs during scroll chuck holding workpiece too thin due to the wall thickness of workpiece when adopting the thin-wall part of lathe process less than 1 millimeter to clamp workpiece by plug, but plug and workpiece can only be matched in clearance, if interference fits or interference fit are very difficult when can cause dismantling workpiece, but during scroll chuck clamping plug, axle center lineman's line operating difficulties of the axis of plug and the turning cylinder of lathe, if when the spacing of the axial line of the turning cylinder of the axial line of plug and lathe is more than 0.2 millimeter, workpiece is very easily processed into waste product.There is percent defective during the prior art processing thin-wall workpiece of thickness below 1 millimeter as can be seen here high, be installed complexity, the shortcoming that working (machining) efficiency is low.
Therefore, the screw thread process that a kind of technology solves wall thickness thin-wall part below 1 millimeter is now badly in need of.
Summary of the invention
The technical problem to be solved in the present invention is that to there is percent defective for prior art at the processing thin-wall part of wall thickness below 1 millimeter high, the defect that working (machining) efficiency is low, there is provided a kind of for processing the externally threaded fixture of motorcycle thin-wall sleeve, processing thin-walled percent defective is low, the feature that working (machining) efficiency is high.
In order to solve the problems of the technologies described above, the invention provides following technical scheme: for processing the externally threaded fixture of motorcycle thin-wall sleeve, comprise rotating shaft, top board, base plate and studs, described rotating shaft is threaded with top board, described studs is between top board and base plate, the precession end of described studs is connected with base thread, and the fastening end of described studs is connected with top board; Described studs is provided with roll forming wheel, and be provided with abutment sleeve between roll forming wheel and top board, and studs is through abutment sleeve, studs is provided with setscrew nut, and setscrew nut is between roll forming wheel and base plate, the fastening end of studs is provided with locking nut; Described rotating shaft is followed successively by threaded portion, smooth and clamping section from top to bottom, and the smooth department of described rotating shaft is provided with annular sleeve, and described annular sleeve is provided with dog screw, and the thread head of dog screw is provided with elastomer block; The clamping part place of described rotating shaft is arranged with expansion set.
Adopt in this programme for processing the externally threaded fixture of motorcycle thin-wall sleeve, comprise rotating shaft, top board, base plate and studs, studs is fixed by top board and base plate acting in conjunction, and roll forming is taken turns and rolled out required screw thread by the outer wall of thin-wall workpiece.Abutment sleeve and setscrew nut acting in conjunction are by fixing for roll forming wheel.Expansion set is by thin-wall part swelling to be processed, and dog screw plays complementary location to workpiece.The elastomer block of dog screw end is that when avoiding dog screw to Workpiece fixing, dog screw directly contacts workpiece, is pulled by surface of the work.Locking nut makes top and studs be connected firmly.Annular sleeve plays a supportive role to dog screw.
Operation principle of the present invention and beneficial effect are: during concrete this thin-wall part of use external screw thread processing clamping, thin-wall workpiece to be processed is enclosed within expansion set by rotational positioning screw, then rotates dog screw, makes the elastomer block on dog screw prop up workpiece.Then rotary motion handle, makes rotating shaft rotate and moves downward, and makes workpiece be gone out screw thread by the roll forming of roll forming wheel.After work pieces process, reversely rotate turning handle, make workpiece increase, then take off with regard to workpiece.During thin-wall workpiece for other specifications of processing, only need change the processing that corresponding roll forming wheel and expansion set can realize workpiece.By the external screw thread of roll forming machined thin-wall pipe, easy for installation with respect to lathe process, percent defective is low, and working (machining) efficiency is high; Because lathe is at the axis collinear of the center line and turning cylinder that add workpiece in man-hour, if the axial line of workpiece does not very easily occur because the wall of workpiece is too thin, easily being ruptured the phenomenon that workpiece ruptures by car with the axis collinear of turning cylinder.
Further, the screw thread of the threaded portion in described rotating shaft is double thread.It is the twice of single thread rotating shaft that the distance of advancing that turns around is revolved in the rotating shaft of double thread.
Further, described rotating shaft upper end is provided with rotation seat, and rotation seat is provided with turning handle.Facilitate axis of rotation, by turning handle rotating shaft, rotating shaft is rotated more laborsaving.
Further, described rotating shaft is provided with spring, and between the rotation seat of spring on top board and rotating shaft.Avoid rotating shaft in rotary course, countershaft plays cushioning effect, and avoids rotating shaft rotary speed too fast, affects crudy.
Further, described base plate is provided with multiple locating hole.Base plate is facilitated to fix.
Accompanying drawing explanation
Fig. 1 is that the present invention is for processing the structural representation of the externally threaded fixture embodiment of motorcycle thin-wall sleeve.
Detailed description of the invention
Below by detailed description of the invention, the present invention is further detailed explanation:
Reference numeral in Figure of description comprises: rotating shaft 1, top board 2, base plate 3, studs 4, abutment sleeve 5, setscrew nut 6, locking nut 7, roll forming wheel 8, locating hole 9, turning handle 10, expansion set 11, workpiece 12.
Embodiment is substantially as shown in Figure 1: for processing the externally threaded fixture of motorcycle thin-wall sleeve, comprise rotating shaft 1, top board 2, base plate 3 and two studs 4, rotating shaft 1 is threaded with top board 2, studs 4 is between top board 2 and base plate 3, the precession end of studs 4 is threaded with base plate 3, and the fastening end of studs 4 is connected with top board 2; Studs 4 is provided with roll forming wheel 8, and be provided with abutment sleeve 5 between roll forming wheel 8 and top board 2, and studs 4 is through abutment sleeve 5, studs 4 is provided with setscrew nut 6, and setscrew nut 6 is between roll forming wheel 8 and base plate 3, the fastening end of studs 4 is provided with locking nut 7; Rotating shaft 1 is followed successively by threaded portion, smooth and clamping section from top to bottom, and the screw thread of the threaded portion in rotating shaft 1 is double thread.The smooth department of rotating shaft 1 is provided with annular sleeve, and annular sleeve is provided with dog screw, and the thread head of dog screw is provided with elastomer block; The clamping part place of rotating shaft 1 is arranged with expansion set 11.Rotating shaft 1 upper end is provided with rotation seat, and rotation seat is provided with turning handle 10.Rotating shaft 1 is provided with spring, and between the rotation seat of spring on top board 2 and rotating shaft 1.Base plate 3 is provided with 4 locating holes 9.
In the specific implementation, thin-wall workpiece 12 to be processed is enclosed within expansion set 11 by rotational positioning screw, then rotates dog screw, makes the elastomer block on dog screw prop up workpiece 12.Then rotary motion handle 10, makes rotating shaft 1 rotate and moves downward, make workpiece 12 be taken turns 8 roll formings by roll forming and go out screw thread.After workpiece 12 completion of processing, reversely rotate turning handle 10, make workpiece 12 increase, then take off with regard to workpiece 12.During thin-wall workpiece 12 for other specifications of processing, only need change the processing that corresponding roll forming wheel 8 and expansion set 11 can realize workpiece 12.
Above-described is only embodiments of the invention, and in scheme, the general knowledge such as known concrete structure and characteristic does not do too much description at this.Should be understood that; for a person skilled in the art, under the prerequisite not departing from structure of the present invention, some distortion and improvement can also be made; these also should be considered as protection scope of the present invention, and these all can not affect the practicality of effect of the invention process and invention.
Claims (5)
1. for processing the externally threaded fixture of motorcycle thin-wall sleeve, it is characterized in that: comprise rotating shaft, top board, base plate and studs, described rotating shaft is threaded with top board, described studs is between top board and base plate, the precession end of described studs is connected with base thread, and the fastening end of described studs is connected with top board; Described studs is provided with roll forming wheel, and be provided with abutment sleeve between roll forming wheel and top board, and studs is through abutment sleeve, studs is provided with setscrew nut, and setscrew nut is between roll forming wheel and base plate, the fastening end of studs is provided with locking nut; Described rotating shaft is followed successively by threaded portion, smooth and clamping section from top to bottom, and the smooth department of described rotating shaft is provided with annular sleeve, and described annular sleeve is provided with dog screw, and the thread head of dog screw is provided with elastomer block; The clamping part place of described rotating shaft is arranged with expansion set.
2. according to claim 1 for processing the externally threaded fixture of motorcycle thin-wall sleeve, it is characterized in that: the screw thread of the threaded portion in described rotating shaft is double thread.
3. according to claim 2 for processing the externally threaded fixture of motorcycle thin-wall sleeve, it is characterized in that: described rotating shaft upper end is provided with rotation seat, and rotation seat is provided with turning handle.
4. according to claim 3ly to it is characterized in that: described rotating shaft is provided with spring for processing the externally threaded fixture of motorcycle thin-wall sleeve, and between the rotation seat of spring on top board and rotating shaft.
5. according to claim 4 for processing the externally threaded fixture of motorcycle thin-wall sleeve, it is characterized in that: described base plate is provided with multiple locating hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410819609.1A CN104525803A (en) | 2014-12-25 | 2014-12-25 | Clamp for machining screw thread outside motorcycle thin-wall sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410819609.1A CN104525803A (en) | 2014-12-25 | 2014-12-25 | Clamp for machining screw thread outside motorcycle thin-wall sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104525803A true CN104525803A (en) | 2015-04-22 |
Family
ID=52841534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410819609.1A Pending CN104525803A (en) | 2014-12-25 | 2014-12-25 | Clamp for machining screw thread outside motorcycle thin-wall sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104525803A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113602339A (en) * | 2021-08-26 | 2021-11-05 | 合肥工业大学 | Positioning mechanism of transfer trolley and application thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2630728A (en) * | 1948-10-30 | 1953-03-10 | Lillie E Lewin | Centerless metalworking fixture |
| CN2380008Y (en) * | 1999-01-19 | 2000-05-31 | 北京林业大学 | Assembling-disassembling type light bush-cutter |
| CN201841297U (en) * | 2010-11-05 | 2011-05-25 | 天津市汉沽区利源祥机械制造厂 | Positioner for boring shaft |
| CN103084873A (en) * | 2012-11-09 | 2013-05-08 | 无锡市航鹄科技有限公司 | Thin-walled pipe workpiece positioning fixture |
| CN203495270U (en) * | 2013-09-12 | 2014-03-26 | 西安志越机电科技有限公司 | Turning fixture for external thread of thin-walled sleeve |
| CN103861981A (en) * | 2013-03-31 | 2014-06-18 | 上海泛华紧固系统有限公司 | Method for rolling external tube thread, rolling head and rolling equipment thereof |
| CN203778799U (en) * | 2014-02-23 | 2014-08-20 | 张鸿来 | Manual self-centering clamp for thin-walled sleeve |
| CN204449138U (en) * | 2014-12-25 | 2015-07-08 | 重庆元创自动化设备有限公司 | For processing the externally threaded fixture of motorcycle thin-wall sleeve |
-
2014
- 2014-12-25 CN CN201410819609.1A patent/CN104525803A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2630728A (en) * | 1948-10-30 | 1953-03-10 | Lillie E Lewin | Centerless metalworking fixture |
| CN2380008Y (en) * | 1999-01-19 | 2000-05-31 | 北京林业大学 | Assembling-disassembling type light bush-cutter |
| CN201841297U (en) * | 2010-11-05 | 2011-05-25 | 天津市汉沽区利源祥机械制造厂 | Positioner for boring shaft |
| CN103084873A (en) * | 2012-11-09 | 2013-05-08 | 无锡市航鹄科技有限公司 | Thin-walled pipe workpiece positioning fixture |
| CN103861981A (en) * | 2013-03-31 | 2014-06-18 | 上海泛华紧固系统有限公司 | Method for rolling external tube thread, rolling head and rolling equipment thereof |
| CN203495270U (en) * | 2013-09-12 | 2014-03-26 | 西安志越机电科技有限公司 | Turning fixture for external thread of thin-walled sleeve |
| CN203778799U (en) * | 2014-02-23 | 2014-08-20 | 张鸿来 | Manual self-centering clamp for thin-walled sleeve |
| CN204449138U (en) * | 2014-12-25 | 2015-07-08 | 重庆元创自动化设备有限公司 | For processing the externally threaded fixture of motorcycle thin-wall sleeve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113602339A (en) * | 2021-08-26 | 2021-11-05 | 合肥工业大学 | Positioning mechanism of transfer trolley and application thereof |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150422 |
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| RJ01 | Rejection of invention patent application after publication |