CN103433573A - Tool for machining thin and long rod threads - Google Patents
Tool for machining thin and long rod threads Download PDFInfo
- Publication number
- CN103433573A CN103433573A CN2013103790939A CN201310379093A CN103433573A CN 103433573 A CN103433573 A CN 103433573A CN 2013103790939 A CN2013103790939 A CN 2013103790939A CN 201310379093 A CN201310379093 A CN 201310379093A CN 103433573 A CN103433573 A CN 103433573A
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- rolling bearing
- taper shank
- tool
- thin
- shifting axle
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Abstract
The invention discloses a tool for machining thin and long rod threads. The tool for machining the thin and long rod threads comprises a taper shank guide sleeve barrel, a movable shaft and a threading die, and is characterized in that a guide mechanism is arranged on the movable shaft and a guide hole is formed in the taper shank guide sleeve barrel. The guide mechanism comprises a rolling bearing and a pin shaft, the pin shaft penetrates through an inner hole of the rolling bearing and fixes an inner bushing of the rolling bearing and the movable shaft, the axis of the rolling bearing is perpendicular to that of the taper shank guide sleeve barrel and the rolling bearing moves in the guide hole. The tool for machining the thin and long rod threads has the advantages that when the threading die is screwed into or is screwed out of a workpiece, the rolling bearing moves forwards in the guide hole in a rolling mode, original sliding friction is changed into current rolling friction, resistance generated when the threading die is screwed into or is screwed out of the workpiece is effectively reduced, and accordingly qualified thin and long threaded rod thread workpieces having equal thread pitches can be machined, and the quality and the yield of products are guaranteed. The tool for machining the thin and long rod threads is suitable for being installed on an ordinary lathe to be used, easy to operate and good in universality.
Description
Technical field
The present invention relates to a kind of instrument, be specifically related to the instrument that a kind of processing slim bar screw thread is used, belong to field of machining.
Background technology
Slender rod type fine thread part is widely used in endless-track vehicle steering adjustment System, and the flexible adjustability of its threaded engagement pair is being brought into play very important effect to matching and the stability of whole vehicle steering system handling.Wherein the screw processing quality of slender rod type fine thread part is the key factor of the flexible adjustable of threaded engagement pair.
When engine lathe uses general tool cover elongate rod fine thread, because fine thread pitch is little, tooth form is little, and the axial tension can bear is little.Positive and negative two faces of threading die can be cut, when workpiece rotation screw die incision workpiece, owing to being subject to ineffective activity that threading tool moves and the impact of tail stock deadweight, the reversal interlocking relay produced makes threading die can't drag tailstock tool to front slide, cause lathe screw die when external threading not move forward by standard pitch, each single pitch has produced small variation, larger variation has also just occurred in the total helical pitch of elongate rod thread part, the product of extracting all is easy to the out-of-size scope with ring screw gauge inspection and pitch diameter of thread miking workpiece.When elongate threaded screw is screwed in to darker screwed hole, because elongate rod part lead has produced variation, revolve tighter and tighter, the screw rod screwed hole of can't all packing into, can't realize effectively complete cooperation, not reach technological requirement, affect quality of fit and the product quality of product.
Summary of the invention
For solving the deficiencies in the prior art, the object of the present invention is to provide a kind of processing slim bar screw thread instrument, resistance when this instrument cuts out workpiece by adjusting threading die processes the elongate rod thread part that equal uniform pitch is qualified.
In order to realize above-mentioned target, the present invention adopts following technical scheme:
A kind of processing slim bar screw thread instrument, comprise: the taper shank pilot sleeve, the shifting axle axially moved along the axis of taper shank pilot sleeve in the taper shank pilot sleeve, be installed on the threading die of shifting axle end, it is characterized in that, be provided with guiding mechanism on aforementioned shifting axle, be formed with on the taper shank pilot sleeve along the pilot hole of the Axis Extension of taper shank pilot sleeve; Aforementioned guiding mechanism comprises: rolling bearing and bearing pin, and aforementioned bearing pin passes the endoporus of rolling bearing and the inner sleeve of rolling bearing and shifting axle is fixed, and the axis of rolling bearing is vertical with the axis of taper shank pilot sleeve, and rolling bearing moves in pilot hole.
Aforesaid processing slim bar screw thread instrument is characterized in that aforementioned guiding mechanism is provided with at least two groups on the excircle of shifting axle.
Aforesaid processing slim bar screw thread instrument, is characterized in that, aforementioned guiding mechanism evenly arranges on the excircle of shifting axle.
Aforesaid processing slim bar screw thread instrument is characterized in that aforementioned guiding mechanism is provided with four groups.
Usefulness of the present invention is: be arranged on the rolling bearing on shifting axle, when threading die cuts out workpiece, roll and advance in the pilot hole of taper shank pilot sleeve, take sliding friction and change into and present take rolling friction as main motion as main motion original, effectively reduced resistance when threading die cuts out workpiece, guaranteed that threading die can cut, screw out workpiece smoothly, thereby can process the screw threads of slender screw rod workpiece that equal uniform pitch is qualified, guarantee quality and the yields of product; Instrument of the present invention is applicable to be arranged on all engine lathes and uses, simple to operate, and versatility is good.
The accompanying drawing explanation
Fig. 1 is the external structure schematic diagram of processing slim bar screw thread of the present invention with instrument;
Fig. 2 is the profile that the processing slim bar screw thread in Fig. 1 is used instrument;
Fig. 3 is the local structure for amplifying schematic diagram of Fig. 2.
The implication of Reference numeral in figure: 1-taper shank, 2-pilot sleeve, 3-axis, 4-shifting axle, 5-threading die, 6-pilot hole, 7-rolling bearing, 71-inner sleeve, 72-ball, 73-overcoat, 8-bearing pin, 9-axis.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is done to concrete introduction.
Referring to figs. 1 through Fig. 3, processing slim bar screw thread instrument of the present invention, comprise: the taper shank pilot sleeve, the shifting axle 4 axially moved along the axis 3 of taper shank pilot sleeve in the taper shank pilot sleeve, and the threading die 5 that is installed on shifting axle 4 ends, this taper shank pilot sleeve is divided into two sections: one section is taper shank 1, for packing tail stock sleeve (not shown) into, another section is pilot sleeve 2, is formed with the pilot hole 6 extended along axis 3 on it.Wherein, also be provided with guiding mechanism on shifting axle 4, concrete, this guiding mechanism comprises: rolling bearing 7 and bearing pin 8, bearing pin 8 passes the endoporus of rolling bearing 7 and the inner sleeve of rolling bearing 7 71 and shifting axle 4 is fixed, the axis 9 of rolling bearing is vertical with axis 3, and rolling bearing 7 is in the interior movement of pilot hole 6.
During use, first threading die 5 is packed in shifting axle 4, in the tail stock sleeve of then taper shank 1 being packed into, shakeout machine bed barrel of tail stock handle just can external threading.Because rolling bearing 7 is housed on shifting axle 4, the inner sleeve 71 of rolling bearing 7 maintains static with respect to shifting axle 4, when shifting axle 4 axially moves with respect to pilot sleeve 2, the overcoat 73 phase mutual friction of the edge of pilot hole 6 and rolling bearing 7, produce frictional force, the direction of this frictional force and rolling bearing 7 are tangent, under the effect of ball 72, overcoat 73 relatively rotates with inner sleeve 71, show as rolling bearing 7 in the interior rolling of pilot hole 6, thereby the sliding friction between original guiding mechanism and pilot hole 6 has been become to present rolling friction, resistance when threading die 5 cuts out workpiece has obtained great reduction, guaranteed that threading die 5 can cut workpiece smoothly, remain that threading die 5 is cut along the direction of motion when screwing in workpiece, while screwing out workpiece without cutting, its pitch equalization of the screw threads of slender screw rod workpiece processed, meet the requirements, quality and the yields of product have been improved.
As a kind of preferred scheme, guiding mechanism is provided with at least two groups on the excircle of shifting axle 4, guarantees that shifting axle 4 is in the interior smooth and easy movement of pilot sleeve 2.
More preferably, guiding mechanism evenly arranges on the excircle of shifting axle 4, guarantees that shifting axle 4 is stressed evenly.
Most preferably, guiding mechanism is provided with four groups, vertical in twos.
It should be noted that, above-described embodiment does not limit the present invention in any form, and all employings are equal to replaces or technical scheme that the mode of equivalent transformation obtains, all drops in protection scope of the present invention.
Claims (4)
1. processing slim bar screw thread instrument, comprise: the taper shank pilot sleeve, the shifting axle axially moved along the axis of taper shank pilot sleeve in the taper shank pilot sleeve, be installed on the threading die of shifting axle end, it is characterized in that, be provided with guiding mechanism on described shifting axle, be formed with on the taper shank pilot sleeve along the pilot hole of the Axis Extension of taper shank pilot sleeve; Described guiding mechanism comprises: rolling bearing and bearing pin, and described bearing pin passes the endoporus of rolling bearing and the inner sleeve of rolling bearing and shifting axle is fixed, and the axis of rolling bearing is vertical with the axis of taper shank pilot sleeve, and rolling bearing moves in pilot hole.
2. processing slim bar screw thread instrument according to claim 1, is characterized in that, described guiding mechanism is provided with at least two groups on the excircle of shifting axle.
3. processing slim bar screw thread instrument according to claim 2, is characterized in that, described guiding mechanism evenly arranges on the excircle of shifting axle.
4. processing slim bar screw thread instrument according to claim 3, is characterized in that, described guiding mechanism is provided with four groups.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103790939A CN103433573A (en) | 2013-08-27 | 2013-08-27 | Tool for machining thin and long rod threads |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103790939A CN103433573A (en) | 2013-08-27 | 2013-08-27 | Tool for machining thin and long rod threads |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103433573A true CN103433573A (en) | 2013-12-11 |
Family
ID=49687337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013103790939A Pending CN103433573A (en) | 2013-08-27 | 2013-08-27 | Tool for machining thin and long rod threads |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103433573A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113857591A (en) * | 2021-11-16 | 2021-12-31 | 北京北方车辆集团有限公司 | Lathe backspacing threading tool |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3840928A (en) * | 1972-06-03 | 1974-10-15 | Lechler Apparatebau Kg | Tool holder for lathes |
| CN201124277Y (en) * | 2007-12-19 | 2008-10-01 | 上海东方泵业(集团)有限公司 | Clamping head for thread machining |
| CN201300267Y (en) * | 2008-11-20 | 2009-09-02 | 南阳二机石油装备(集团)有限公司 | Device for lather to quickly process small-diameter internal and external screws |
| CN201792059U (en) * | 2010-09-02 | 2011-04-13 | 江西铜业股份有限公司 | Tapping clamp of nut for lathe |
| CN202411583U (en) * | 2011-12-17 | 2012-09-05 | 鞍钢重型机械有限责任公司 | Fixture for machining external thread of sintering machine head wheel shaft |
| CN202622096U (en) * | 2012-03-17 | 2012-12-26 | 江苏省江阴中等专业学校 | Foldable threading tool |
| AU2013100744A4 (en) * | 2013-05-27 | 2013-06-27 | Zhejiang Linix Solar Co.,Ltd | External thread Machining Device |
-
2013
- 2013-08-27 CN CN2013103790939A patent/CN103433573A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3840928A (en) * | 1972-06-03 | 1974-10-15 | Lechler Apparatebau Kg | Tool holder for lathes |
| CN201124277Y (en) * | 2007-12-19 | 2008-10-01 | 上海东方泵业(集团)有限公司 | Clamping head for thread machining |
| CN201300267Y (en) * | 2008-11-20 | 2009-09-02 | 南阳二机石油装备(集团)有限公司 | Device for lather to quickly process small-diameter internal and external screws |
| CN201792059U (en) * | 2010-09-02 | 2011-04-13 | 江西铜业股份有限公司 | Tapping clamp of nut for lathe |
| CN202411583U (en) * | 2011-12-17 | 2012-09-05 | 鞍钢重型机械有限责任公司 | Fixture for machining external thread of sintering machine head wheel shaft |
| CN202622096U (en) * | 2012-03-17 | 2012-12-26 | 江苏省江阴中等专业学校 | Foldable threading tool |
| AU2013100744A4 (en) * | 2013-05-27 | 2013-06-27 | Zhejiang Linix Solar Co.,Ltd | External thread Machining Device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113857591A (en) * | 2021-11-16 | 2021-12-31 | 北京北方车辆集团有限公司 | Lathe backspacing threading tool |
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| C06 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20131211 |