CN103752958A - Safety tapping device - Google Patents
Safety tapping device Download PDFInfo
- Publication number
- CN103752958A CN103752958A CN201310602473.4A CN201310602473A CN103752958A CN 103752958 A CN103752958 A CN 103752958A CN 201310602473 A CN201310602473 A CN 201310602473A CN 103752958 A CN103752958 A CN 103752958A
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- China
- Prior art keywords
- spindle
- main shaft
- driving
- driven gear
- driving shaft
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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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Abstract
The invention belongs to the technical field of thread cutting, and relates to a safety tapping device which comprises a frame and a spindle. The spindle is mounted on a frame supporting table through a feed thread section, the front end of the spindle is connected with a screw tap, a stopper is fixed to the rear end of the spindle and positioned between two travel switches, a driving shaft is further arranged on the frame, a driving gear is arranged on the driving shaft, a driven gear engaged with the driving gear is arranged between the feed thread section of the spindle and the stopper, and empty spaces for disengagement of the driven gear are reserved at two ends of the driving gear of the driving shaft. The safety tapping device is simple in structure, an original driving spindle is changed into a driven spindle, the driven gear is separated from the driving gear by rotation and movement of the spindle, the spindle stops moving, the travel of the spindle can be controlled, accident rate is decreased by controlling the travel of the spindle, and machining safety is improved.
Description
Technical field
The invention belongs to screw thread cutting technical field.
Background technology
In part internal thread cutting processing, screw tap is arranged on main shaft and does and rotate and axial feed motion, and the speed of screw tap feeding determines by the helical pitch of screw thread, the advancing, retreat and utilize travel switch to control of screw tap.The shortcoming of such scheme is: after travel switch is malfunctioning, with regard to the stroke of uncontrollable screw tap, screw tap works on and causes possibly accident, for example, destroy part pre-manufactured hole, injure operating personnel etc., and the power down source of must breaking just can stop screw tap work.
Summary of the invention
The invention is intended to provide a kind of after stroke malfunctioning switch, can prevent the safe chasing bar of accident.
Object of the present invention can reach by following measures: safe chasing bar, comprise frame and main shaft, main shaft is installed on frame support platform by feeding thread segment, the front end of main shaft is connected with screw tap, the rear end of main shaft is fixed with block, and this block, between two travel switches, is also provided with driving shaft in described frame, on driving shaft, with driven wheel, between the feeding thread segment of main shaft and block, be provided with the driven gear engaging with driven wheel; The neutral gear of throwing off engagement for driven gear is left at the driven wheel two ends of driving shaft.
Technique scheme difference with the prior art is: the driven wheel and the driven gear that in frame, have increased pair of meshing, in tapping process, driven wheel drives driven gear and makes main shaft gyration, simultaneously, under the effect of feeding screw thread, main shaft also can axially move.When travel switch in process breaks down, main shaft can continue revolution and mobile, and driven gear is thrown off and engaged with driven wheel at neutral place, makes main shaft stop revolution, and the safety of assurance mechanism, prevents accident.The present invention is simple in structure, made original drive shaft into slave spindle, by main shaft gyration and the mobile driven gear that makes, depart from driven wheel, make main shaft stop motion, reached the object of controlling travel of spindle, by controlling travel of spindle, reduce accident rate, improved the security of processing.
Further, described screw tap is fixed on front-end of spindle by collet, connects more firm.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation:
Fig. 1 is the structural representation of the safe chasing bar embodiment of the present invention.
The specific embodiment
As shown in Figure 1: safe chasing bar, comprise frame, this frame comprises that U-shaped platform 1 and brace table 2 form, and U-shaped platform consists of the riser at base plate, base plate two ends, and brace table 2 is between two risers.
Main shaft 3 laterally runs through two risers and brace table 2, and the feeding thread segment on main shaft 3 matches with the threaded interior hole on brace table 2.The front end that main shaft 3 is positioned at outside U-shaped platform 1 is connected with screw tap 5 by collet 4.The rear end that main shaft 3 is positioned at outside U-shaped platform 1 is fixed with baffle plate 6, this baffle plate 6, between travel switch M1 and travel switch M2, is touched travel switch M1 when baffle plate 6 moves to travel switch M1 position along with main shaft 3, and main shaft 3 retreats, when baffle plate 6 moves and touch travel switch M2, main shaft 3 advances.
The interlude that main shaft 3 is positioned at U-shaped platform 1 is fixed with driven gear 7.Driving shaft 8 runs through brace table 2 and the riser near main shaft 3 rear ends, is connected with driven wheel 9 on driving shaft 8, and driven wheel 9 engages with driven gear 7.Driving shaft 8 leaves respectively neutral gear A and neutral B at the two ends of driven wheel 9, when travel switch damages uncontrollable main shaft 3, main shaft 3 continues revolution and mobile, final and the driven wheel 9 of driven gear on main shaft 37 departs from engagement, driven gear 7 moves to neutral A or neutral B, main shaft 3 stop motions.
The foregoing is only the detailed description of preferred embodiment of the present invention, be not used for limiting the present invention, the embodiment of all similar variations of doing according to creation spirit of the present invention, all should be contained among the present invention.
Claims (2)
1. safe chasing bar, comprise frame and main shaft, main shaft is installed on frame support platform by feeding thread segment, the front end of main shaft is connected with screw tap, the rear end of main shaft is fixed with block, and this block, between two travel switches, is characterized in that: in described frame, be also provided with driving shaft, on driving shaft, with driven wheel, between the feeding thread segment of main shaft and block, be provided with the driven gear engaging with driven wheel; The neutral gear of throwing off engagement for driven gear is left at the driven wheel two ends of driving shaft.
2. safe chasing bar according to claim 1, is characterized in that: described screw tap is fixed on front-end of spindle by collet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310602473.4A CN103752958A (en) | 2013-11-25 | 2013-11-25 | Safety tapping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310602473.4A CN103752958A (en) | 2013-11-25 | 2013-11-25 | Safety tapping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103752958A true CN103752958A (en) | 2014-04-30 |
Family
ID=50520361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310602473.4A Pending CN103752958A (en) | 2013-11-25 | 2013-11-25 | Safety tapping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103752958A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104384628A (en) * | 2014-10-09 | 2015-03-04 | 广西大学 | Vertical manual tapping machine |
| CN105537697A (en) * | 2016-02-23 | 2016-05-04 | 岳睿 | Mechatronics device capable of controlling tapping depth |
| CN108356665A (en) * | 2018-02-13 | 2018-08-03 | 岳睿 | Building materials, the art work carve grinding device |
| CN108655446A (en) * | 2018-05-03 | 2018-10-16 | 于法周 | A kind of automation drilling device |
-
2013
- 2013-11-25 CN CN201310602473.4A patent/CN103752958A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104384628A (en) * | 2014-10-09 | 2015-03-04 | 广西大学 | Vertical manual tapping machine |
| CN105537697A (en) * | 2016-02-23 | 2016-05-04 | 岳睿 | Mechatronics device capable of controlling tapping depth |
| CN108356665A (en) * | 2018-02-13 | 2018-08-03 | 岳睿 | Building materials, the art work carve grinding device |
| CN108655446A (en) * | 2018-05-03 | 2018-10-16 | 于法周 | A kind of automation drilling device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140430 |