CN203900656U - Self-rotating threading tool - Google Patents
Self-rotating threading tool Download PDFInfo
- Publication number
- CN203900656U CN203900656U CN201420230514.1U CN201420230514U CN203900656U CN 203900656 U CN203900656 U CN 203900656U CN 201420230514 U CN201420230514 U CN 201420230514U CN 203900656 U CN203900656 U CN 203900656U
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- China
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- tool
- self
- threading tool
- plunger tip
- workpiece
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- Withdrawn - After Issue
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Abstract
A self-rotating threading tool comprises a tool rest and a tool body sleeve, wherein a rotating body is arranged on the tool body sleeve and is connected with a motor; a limit top core is arranged in the center of the cutter body sleeve, a movable top core is sleeved on the limit top core, grooves are symmetrically formed in the top core, movable stop rods are arranged at the grooves, a cutter rest is connected to the movable stop rods, a cutter bar is arranged on the cutter rest, and a return spring is arranged between the top core and the inner wall of the cutter body sleeve. The utility model discloses a design of spacing jump sword does not need the car broach groove during processing screw thread, has guaranteed the terminal intensity of work piece screw thread, has reduced manufacturing procedure. During machining, the end face of the workpiece is fed inwards and rotates in the opposite direction of the main shaft of the machine tool, so that the left-handed and reverse-threaded positive turning is realized. The two groups of tool bits are symmetrically arranged, so that the tool is in a dynamic balance state when rotating, the problems of product surface quality and workpiece non-concentricity caused by tool trembling in processing are avoided, the processing precision and the workpiece strength are improved, the service life and the working efficiency of the workpiece are improved, and the production cost is reduced.
Description
Technical field
The utility model belongs to machinery industry metal machining tool technical field, is specifically related to a kind of self-rotary threading tool.
Background technology
At present, the threading tool that domestic mechanic factory workers uses is fixing staight shank hilted broadsword, adds man-hour requirement first car on workpiece and goes out undercut (being escape), has not only increased operation but also has reduced the working strength of workpiece.Especially hollow and thin-walled rod workpieces, when use, because moment of torsion is large, stress is concentrated, and screw thread undercut place is easy to fracture, and causes man-hour finished surface precision not even to form right angle area because cutter trembles adding, and affects its service life.In the time of the left-handed left-hand thread of processing, need cutter reverse rotation, bring a series of difficult problems to actual production, also increased production cost simultaneously.
Utility model content
Technical problem to be solved in the utility model is not need undercut in order to overcome when the deficiencies in the prior art provide a kind of machining screw thread, ensures finished surface precision, the self-rotary threading tool reducing production costs.
Adopt following technical scheme for solving technical problem of the present utility model:
A kind of self-rotary threading tool, comprises knife rest and cutter hub cover, and described cutter hub puts and is provided with rotary body, and described rotary body is connected with motor; In in described cutter hub cover, establish in the heart a spacing plunger tip, the movable plunger tip of suit on described spacing plunger tip, on described movable plunger tip, be arranged with groove, described groove is provided with movable lever, on described movable lever, connect knife rest, on described knife rest, knife bar is set, between described movable plunger tip and cutter hub cover inwall, return spring is set.
Described movable top in-core suit stop collar.
Described cutter hub cover inwall is arranged with spacer pin.
Described movable lever head is semicircle shape, with the arc surface adaptation of the groove of movable plunger tip.
On described knife rest, positioning screw is set.
Described knife rest is connected with movable lever by lever spring.
Described knife bar is fastened on knife rest by holding screw, and knife bar regulates its length by set screw,
The speed ratio of described rotary body and motor is 10:14.
What the utility model adopted is spacing lifts design, does not need car undercut when machining screw, has ensured the intensity of workpiece (especially hollow and thin-walled rod workpieces) screw tip, has reduced manufacturing procedure.Add man-hour by workpiece end face inwards feed and with machine tool chief axis opposite spin, realized the positive turning of left-handed left-hand thread.Two groups of symmetrical installations of cutter head, make cutter when rotation in dynamic equilibrium state, avoided in processing, because of cutter tremble the product surface quality problem and the workpiece decentraction problem that cause, having improved machining accuracy and workpiece strength, the service life and the operating efficiency that have improved workpiece, reduced production cost.
Brief description of the drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the profile of Fig. 1;
In figure: 1---cutter hub cover, 2---rotary body, the spacing plunger tip of 3---, 4---motor, 5---stop collar, the movable lever of the movable plunger tip 7---of 6---, 8---lever spring, 9---knife rest, 10---knife bar, 11---set screw, 12---holding screw, 13---positioning screw, 14-return spring, 15-spacer pin.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in Figure 1, 2, a kind of self-rotary threading tool, comprises knife rest 9 and cutter hub cover 1.On cutter hub cover 1, rotary body 2 is installed, tool rest center limited location plunger tip 3, rotary body 2 is driven by motor 4, and when rotation, motor 4 is 14:10 with the speed ratio of rotary body 2.Stop collar 5 is alternative, can select suitable stop collar according to institute's machining screw length.Stop collar 5 is connected with movable plunger tip 6, the groove of movable plunger tip 6 has movable lever 7, movable lever 7 is driven by lever spring 8 and connects knife rest 9, knife bar 10 is installed on knife rest, regulate its length by set screw 11, and in addition fastening by holding screw 12, positioning screw 13 can make knife rest under the effect of lever spring inwards external contracting open, return spring 14 can spring back to plunger tip the spacer pin 15 of cutter hub cavity wall.Described movable lever 7 heads are semicircle shape, can be free to slide with the arc surface of movable plunger tip 6 grooves.
Cutter hub cover 1 is arranged on rotary body 2, and work timing position plunger tip 3 is the workpiece pre-tightening being stuck on machine tool chief axis, by set screw 11, knife bar 10 is adjusted to the position that turning needs after use holding screw 12 it is fastening.Starter motor 4 drives cutter hub cover 1 speed with 14:10 and lathe spindle is done opposite spin and along workpiece end face to major axes orientation turning, in the time that workpiece end face touches stop collar 5, stop collar 5 promotion activity plunger tips 6 move to cutter hub return spring 14, movable lever 7 slides to its groove along the arc surface of plunger tip 6 under the effect of lever spring 8, and be with movable knife rack 9 to expand outwardly centered by positioning screw 13, turning program completes, movable plunger tip 6 is sprung back to spacer pin 15 by return spring 14, movable lever 7 playbacks, and completes a turning.This lathe tool does not need, to workpiece turning undercut, to have ensured the intensity of workpiece screw tip in the time of machining screw; A turning of screw thread completes, and has improved the intensity of workpiece thread root; Two groups of cuttves of a preparation and a use, have realized the positive turning of left-handed left-hand thread, make cutter when rotation in dynamic equilibrium state.Ensure accuracy of screw machining, improved the whole service life of workpiece, increased work efficiency, reduced production cost.
Claims (8)
1. a self-rotary threading tool, comprises knife rest and cutter hub cover, it is characterized in that: described cutter hub cover (1) is provided with rotary body (2), and described rotary body (2) is connected with motor (4); In in described cutter hub cover (1), establish in the heart a spacing plunger tip (3), the upper movable plunger tip of suit of described spacing plunger tip (3) (6), on described movable plunger tip (6), be arranged with groove, described groove is provided with movable lever (7), the upper knife rest (9) that connects of described movable lever (7), knife bar (10) is set on described knife rest (9), between described movable plunger tip (6) and cutter hub cover (1) inwall, return spring (14) is set.
2. a kind of self-rotary threading tool according to claim 1, is characterized in that: suit stop collar (5) in described movable plunger tip (6).
3. a kind of self-rotary threading tool according to claim 1 and 2, is characterized in that: described cutter hub cover (1) inwall is arranged with spacer pin (15).
4. a kind of self-rotary threading tool according to claim 1 and 2, is characterized in that: described movable lever (7) head is semicircle shape, with the arc surface adaptation of the groove of movable plunger tip (6).
5. a kind of self-rotary threading tool according to claim 1, is characterized in that: positioning screw (13) is set on described knife rest (9).
6. a kind of self-rotary threading tool according to claim 1, is characterized in that: described knife rest (9) is connected with movable lever (7) by lever spring (8).
7. a kind of self-rotary threading tool according to claim 1, is characterized in that: it is upper that described knife bar (10) is fastened on knife rest (9) by holding screw (12), and knife bar (10) regulates its length by set screw (11).
8. a kind of self-rotary threading tool according to claim 1, is characterized in that: described rotary body (2) is 10:14 with the speed ratio of motor (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420230514.1U CN203900656U (en) | 2014-05-07 | 2014-05-07 | Self-rotating threading tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420230514.1U CN203900656U (en) | 2014-05-07 | 2014-05-07 | Self-rotating threading tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203900656U true CN203900656U (en) | 2014-10-29 |
Family
ID=51774947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420230514.1U Withdrawn - After Issue CN203900656U (en) | 2014-05-07 | 2014-05-07 | Self-rotating threading tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203900656U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103978274A (en) * | 2014-05-07 | 2014-08-13 | 西北矿冶研究院 | Reverse-rotation thread machining device and machining method |
| CN105414575A (en) * | 2015-11-30 | 2016-03-23 | 浙江德清科赛塑料制品有限公司 | Turning tool for machining internal thread and external thread of universal joint and application method |
-
2014
- 2014-05-07 CN CN201420230514.1U patent/CN203900656U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103978274A (en) * | 2014-05-07 | 2014-08-13 | 西北矿冶研究院 | Reverse-rotation thread machining device and machining method |
| CN103978274B (en) * | 2014-05-07 | 2017-04-05 | 西北矿冶研究院 | Reverse-rotation thread machining device and machining method |
| CN105414575A (en) * | 2015-11-30 | 2016-03-23 | 浙江德清科赛塑料制品有限公司 | Turning tool for machining internal thread and external thread of universal joint and application method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141029 Effective date of abandoning: 20170405 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20141029 Effective date of abandoning: 20170405 |