CN2550105Y - Screw tapping device for drill machine - Google Patents
Screw tapping device for drill machine Download PDFInfo
- Publication number
- CN2550105Y CN2550105Y CN 02271840 CN02271840U CN2550105Y CN 2550105 Y CN2550105 Y CN 2550105Y CN 02271840 CN02271840 CN 02271840 CN 02271840 U CN02271840 U CN 02271840U CN 2550105 Y CN2550105 Y CN 2550105Y
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- CN
- China
- Prior art keywords
- gear
- driving
- drilling machine
- driven gear
- tapper
- 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 relates to a screw tapping device for a drilling machine, which comprises an outer shell, a stopping mechanism of the outer shell and a positive and negative rotational tapping mechanism which is positioned in the outer shell, wherein the positive and negative rotational tapping mechanism is composed of a gear set and a clutch mechanism. The positive and negative rotational tapping mechanism is characterized in that the gear set of the positive and negative rotational mechanism is composed of a driving gear, a driven gear, an upper gear and a lower gear. The driving gear is connected with a driving shaft of a drilling machine by a driving gear shaft. The driving gear is positioned above the driven gear and is coaxial with the driven gear. The driving gear is engaged with the upper half of the upper gear. The lower half of the upper gear is engaged with the upper half of the lower gear, and the lower half of the lower gear is engaged with the driven gear.
Description
Technical field:
The utility model relates to a kind of thread tapper, particularly a kind of drilling machine thread tapper.
Background technology:
At disclosed Chinese patent bulletin on October 31 calendar year 2001: disclose application number among the CN2456875Y and be 00265942 patent application, this patent application discloses the technical scheme of a kind of drilling machine with thread tapper, it comprises bindiny mechanism that is connected with main shaft with the sleeve of drilling machine and the rotating tapper mechanism that is installed in the bindiny mechanism, wherein the rotating tapper mechanism is by driving gear, cog, lower gear, transition gear and clutch are formed, cog and lower gear on same axle, it is meshing with driving gear to cog, lower gear and transition gear are meshing, transition gear and driven gear are meshing, the switched in opposite of driven gear and driving gear; Thereby the main shaft rotating that Clutch Control links to each other with screw tap realizes tapping.The rotating tapper mechanism complexity of this thread tapper.
Summary of the invention:
Technical problem:
Existing drilling machine because of adopting four gears formations, exists complex structure, problem that production cost is high with the positive and negative rotational mechanism of thread tapper.The purpose of this utility model provides a kind of drilling machine thread tapper, and its solves existing drilling machine and has complex structure, problem that production cost is high with thread tapper.
Technical scheme:
The purpose of this utility model is to realize like this, a kind of drilling machine thread tapper, comprise shell, the stop mechanism of shell and the rotating tapper mechanism that is positioned at shell, wherein the rotating tapper mechanism is made of gear train and clutch, the gear train that it is characterized in that positive and negative rotational mechanism is by driving gear, driven gear, cog and the lower gear composition, driving gear links by the driving shaft of driving tooth axle and drilling machine, driving gear is positioned at driven gear top and coaxial, driving gear is meshing with the first half that cogs, the Lower Half that cogs and the first half of lower gear are meshing, and the Lower Half and the driven gear of lower gear are meshing; The driven gear bottom is provided with cannelure, and at least one fixture block stretches in this groove, and fixture block is fixed with screw and lower cover.
Described drilling machine thread tapper is characterized in that described clutch is to have groove at the driven gear upper side, and the main shaft that links with screw tap is provided with the convex tendon that matches with this groove, is provided with spring between main shaft and driving tooth.
Beneficial effect:
Owing to adopted technical scheme described in the utility model, to compare with thread tapper with existing drilling machine under the same conditions, it has saved a gear, simplifies the structure, and has saved cost.And after adopting clutch described in the utility model, after tapping finishes, during the main shaft that links with screw tap is subjected to no longer that workpiece makes progress top power, main shaft separates with driving gear under the effect of spring force, convex tendon on the main shaft falls in the groove of driven gear again, and main shaft is forced to counter-rotating, and this clutch does not use friction plate easy to wear, even need not safeguard so use for a long time yet, make things convenient for the user.Certainly in order to make described drilling machine even with driving and driven strength of gear in the thread tapper, prolong its life-span, can increase that a pair of and former upper and lower gear mesh is much of, lower gear, though general gear number at this moment is six, compares with thread tapper with existing drilling machine under the same terms and also saved two gears (as described in embodiment).
Description of drawings:
Fig. 1 is the meshing state diagram of drilling machine described in the utility model with the inner teeth wheels of an embodiment of thread tapper.
Fig. 2 is the cutaway view of Fig. 1 along the A-A line.
Fig. 3 is the left view of Fig. 1.
Fig. 4 is the outline drawing of driven gear 3 among Fig. 1 embodiment.
Drawing description of symbols: 1-driving tooth axle, 101-driving gear, 2-main shaft, 201-convex tendon, the 3-driven gear, 301-groove, 302-cannelure, the upper right gear of 41-, the upper left gear of 42-, 43-bottom right gear, 44-lower-left gear, 5-gear shaft, 6-driving tooth axle sleeve, 7-upper press cover axle sleeve, 8-lower cover axle sleeve, 9-lower cover, the 10-upper press cover, the 11-housing, 12-locatees fork shaft, 13-clamping screw, the 14-fixture block, 141-screw, 15-spring.
The specific embodiment:
Fig. 1 is a drilling machine described in the utility model with the meshing state diagram of the inner teeth wheels of an embodiment of thread tapper (also being the upward view of taking away among Fig. 2 behind lower cover 9 and the driven gear 3).In conjunction with Fig. 1, Fig. 2, Fig. 3 and Fig. 4 as seen, described drilling machine comprises the stop mechanism of shell, shell with thread tapper and is positioned at the rotating tapper mechanism of shell; Shell is made up of housing 11, upper press cover 10, lower cover 9, and is with clamping screw 13 that housing 11 is fixing between upper and lower gland; The stop mechanism of shell is that an end is fixed on the location fork shaft 12 on the upper press cover 10, the other end of location fork shaft 12 can be fixed on the drilling machine or stretch in the groove offered on the drilling machine in order to prevent thread tapper in use shell rotate with main shaft 2; The rotating tapper mechanism is positioned at housing 11, it is made of gear train and clutch, gear train is made up of the driving gear 101, driven gear 3, upper left gear 42, upper right gear 41, lower-left gear 44 and the bottom right gear 43 that link with driving tooth axle 1, and the driving shaft of driving gear 101 and drilling machine links and be coaxial with driven gear 3; Driven gear 3 upper sides are provided with groove 301, and the bottom is provided with cannelure 302, and cannelure 302 places in the counterbore of lower cover 9, and two fixture blocks 14 stretch in the cannelure 302, and fixture block 14 usefulness screws 141 are fixing with lower cover 9, and its effect is to prevent that driven gear 3 from up scurrying; Driving gear 101 is meshing with the left and right first half that cogs, and the left and right Lower Half that cogs is meshing with the first half of left and right lower gear respectively, and the Lower Half of left and right lower gear and driven gear 3 are meshing; Main shaft 2 is provided with the convex tendon 201 that matches with groove 301, and 101 of main shaft 2 and driving tooths are provided with spring 15.
The switched in opposite of visible driving gear 101 and driven gear 3 from Fig. 1 and Fig. 2.Present embodiment has used two groups of upper and lower gears in order to improve the life-span of gear train; The left and right effect that cogs is the same, and the effect of left and right lower gear can be saved upper left gear and lower-left gear in order to save cost too.
During tapping, external force with the sleeve on the drilling machine to pressing down, thread tapper moves downward under the drive of drilling machine sleeve, the main shaft 2 that screw tap is housed overcomes spring 15 under the power effect that workpiece makes progress elastic force moves upward, convex tendon 201 separates with groove 301, the outer conical surface on main shaft 2 tops contacts with the internal conical surface of driving tooth axle 1, driving tooth axle 1 drives main shaft 2 just to be changeed, workpiece is carried out tapping, after tapping finished, workpiece disappeared to the power that main shaft 2 makes progress, and removes the external force of drilling machine sleeve simultaneously, main shaft 2 moves downward under the elastic force effect of spring 15, the outer conical surface on main shaft 2 tops is separated with the internal conical surface of driving tooth axle 1, and the convex tendon 201 on the main shaft 2 falls in the groove 301 of driven gear 3, and driven gear 3 drives main shaft 2 counter-rotatings, screw tap screws out from workpiece, finishes tapping procedures.
Claims (2)
1, a kind of drilling machine thread tapper, comprise shell, the stop mechanism of shell and the rotating tapper mechanism that is positioned at shell, wherein the rotating tapper mechanism is made of gear train and clutch, the gear train that it is characterized in that positive and negative rotational mechanism is by driving gear, driven gear, cog and the lower gear composition, driving gear links by the driving shaft of driving tooth axle and drilling machine, driving gear is positioned at driven gear top and coaxial, driving gear is meshing with the first half that cogs, the Lower Half that cogs and the first half of lower gear are meshing, and the Lower Half and the driven gear of lower gear are meshing; The driven gear bottom is provided with cannelure, and at least one fixture block stretches in this groove, and fixture block is fixed with screw and lower cover.
2, drilling machine thread tapper according to claim 1 is characterized in that described clutch is to have groove at the driven gear upper side, and the main shaft that links with screw tap is provided with the convex tendon that matches with this groove, is provided with spring between main shaft and driving tooth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02271840 CN2550105Y (en) | 2002-07-18 | 2002-07-18 | Screw tapping device for drill machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02271840 CN2550105Y (en) | 2002-07-18 | 2002-07-18 | Screw tapping device for drill machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2550105Y true CN2550105Y (en) | 2003-05-14 |
Family
ID=33736630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02271840 Expired - Fee Related CN2550105Y (en) | 2002-07-18 | 2002-07-18 | Screw tapping device for drill machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2550105Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105705069A (en) * | 2013-11-12 | 2016-06-22 | 皇家飞利浦有限公司 | Coffee grinder and coffee grinding method |
-
2002
- 2002-07-18 CN CN 02271840 patent/CN2550105Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105705069A (en) * | 2013-11-12 | 2016-06-22 | 皇家飞利浦有限公司 | Coffee grinder and coffee grinding method |
| US10517434B2 (en) | 2013-11-12 | 2019-12-31 | Koninklijke Philips N.V. | Coffee grinder and coffee grinding method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |