CN202317316U - Anti-cracking tapping device - Google Patents
Anti-cracking tapping device Download PDFInfo
- Publication number
- CN202317316U CN202317316U CN2011204574628U CN201120457462U CN202317316U CN 202317316 U CN202317316 U CN 202317316U CN 2011204574628 U CN2011204574628 U CN 2011204574628U CN 201120457462 U CN201120457462 U CN 201120457462U CN 202317316 U CN202317316 U CN 202317316U
- Authority
- CN
- China
- Prior art keywords
- sliding sleeve
- sleeve
- transmission shaft
- spring
- power transmission
- 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 discloses an anti-cracking tapping device, which comprises a transmission shaft with a boss at a lower end, and a driven sliding sleeve, a driving sliding sleeve, a spring, a sleeve and an adjusting nut which are sequentially sheathed on the transmission shaft. The driven sliding sleeve is installed at the lower end of the transmission shaft through the boss. At least two arc-shaped bulges I are arranged on the upper end surface of the driven sliding sleeve. A tap clamping sleeve is installed in the driven sliding sleeve through a bolt. The driving sliding sleeve which is slideably installed on the transmission shaft is arranged at the upper end of the driven sliding sleeve. At least two arc-shaped bulges II which are matched with the arc-shaped bulges I are arranged on the lower end surface of the driving sliding sleeve. The upper end of the driving sliding sleeve is connected with the spring. The upper end of the spring is connected with the sleeve. The adjusting nut is arranged at the upper end of the sleeve. The anti-cracking tapping device has the characteristics of reasonable design, simple structure, high universality, small volume, convenience in movement and installation, simplicity in production, low production cost, long service life and convenience in popularization and use.
Description
Technical field
The utility model belongs to the Machining Technology field, relates to a kind of protective device that prevents that quilt is twisted off in the screw tap tapping process, is specifically related to a kind of tapping anti-off device.
Background technology
At present, in machining, usually run into the processing of internal thread, screw tap is the common tool of machining internal thread.When machining internal thread, the screw tap of suitable dimension is installed on drilling machine or the tapping machine, screw tap is rotation at a high speed under the drive of machine motor, and the control screw tap can process the internal thread of wanting to workpiece motion s on workpiece.Screw tap can run into certain resistance when machining internal thread, when the processing resistance surpassed the fatigue limit of screw tap, screw tap will be twisted off, thereby reduces production efficiency, increase production cost, and brings hidden danger to safety in production.
The utility model content
The purpose of the utility model is to overcome above-mentioned deficiency of the prior art, and a kind of tapping anti-off device is provided, and it is reasonable in design, and is simple in structure; Versatility is good, and advantages of small volume is convenient to carrying and installation, makes simple; Production cost is low, and long service life is convenient to promote the use of.
For realizing above-mentioned purpose; The technical scheme that the utility model adopts is: a kind of tapping anti-off device; It is characterized in that: comprise that the lower end has the power transmission shaft of boss and is set in driven sliding sleeve, active sliding sleeve, spring, sleeve and the adjusting nut on the power transmission shaft successively, said driven sliding sleeve is installed in the power transmission shaft lower end through boss, and said driven sliding sleeve upper surface is provided with at least two arcuation projections one; Said driven sliding sleeve inside is equipped with tap chuck through bolt; Said driven sliding sleeve upper end is provided with the active sliding sleeve that is slidingly mounted on the power transmission shaft, and said active sliding sleeve lower surface is provided with at least two arcuation projections two that match with arcuation projection one, and said active sliding sleeve upper end is connected with spring; Said spring upper end is connected with sleeve, and said sleeve upper end is provided with adjusting nut.
Said arcuation projection one evenly distributes around the central axis of driven sliding sleeve, and said arcuation projection two evenly distributes around the central axis of active sliding sleeve.
Said power transmission shaft is provided with keyway, and said active sliding sleeve is slidingly mounted on power transmission shaft through the key that is installed in the keyway with the jackscrew that is used to hold out against key.
The outer contour of said arcuation projection one and arcuation projection two is identical and be circular arc, elliptic arc or involute.
Be provided with pad between said active sliding sleeve and the spring, be provided with pad between said sleeve and the spring.
The utility model compared with prior art has the following advantages:
(1) this tapping anti-off device is reasonable in design; Simple in structure, when screw tap ran into big resistance in tapping process, the driven sliding sleeve that is meshed can separate rapidly with the active sliding sleeve; Control torque transmits, thereby protects screw tap in process, not twisted off well.
(2) this tapping anti-off device be provided with can the regulating spring pretightning force adjusting nut, thereby satisfy the requirement of the ultimate torque of different size screw tap, versatility is good.
(3) this tapping anti-off device volume is little, in light weight, is convenient to very much carrying and installation.
(4) how a lot of parts of this tapping anti-off device are convenient to produce or buy very much, thereby its production cost is very low, and long service life, are convenient to promote the use of.
Through accompanying drawing and embodiment, the utility model is done further detailed description below.
Description of drawings
Fig. 1 is the overall structure sketch map of the utility model.
Fig. 2 is the structural representation of the utility model power transmission shaft.
Fig. 3 is the structural representation of the driven sliding sleeve of the utility model.
Fig. 4 is the A-A cutaway view of Fig. 3.
Fig. 5 is the initiatively structural representation of sliding sleeve of the utility model.
Fig. 6 is the B-B cutaway view of Fig. 5.
Description of reference numerals:
The 1-power transmission shaft; The 1-1-boss; The driven sliding sleeve of 2-;
2-1-arcuation projection one; 3-is sliding sleeve initiatively; 3-1-arcuation projection two;
The 3-2-jackscrew; The 4-spring; The 5-sleeve;
The 6-adjusting nut; The 7-tap chuck; The 8-key;
The 9-pad.
The specific embodiment
Like Fig. 1-a kind of tapping anti-off device shown in Figure 6; Comprise that the lower end has the power transmission shaft 1 of boss 1-1 and is set in driven sliding sleeve 2, active sliding sleeve 3, spring 4, sleeve 5 and the adjusting nut 6 on the power transmission shaft 1 successively; Said driven sliding sleeve 2 is installed in power transmission shaft 1 lower end through boss 1-1; Said driven sliding sleeve 2 upper surfaces are provided with at least two arcuation projection one 2-1, and said driven sliding sleeve 2 inside are equipped with tap chuck 7 through bolt, and said driven sliding sleeve 2 upper ends are provided with the active sliding sleeve 3 that is slidingly mounted on the power transmission shaft 1; Said active sliding sleeve 3 lower surfaces are provided with at least two arcuation projection two 3-1 that match with arcuation projection one 2-1; Said active sliding sleeve 3 upper ends are connected with spring 4, and said spring 4 upper ends are connected with sleeve 5, and said sleeve 5 upper ends are provided with the adjusting nut 6 that is used for regulating spring 4 pretightning forces.
Like Fig. 4 and shown in Figure 6, said arcuation projection one 2-1 evenly distributes around the central axis of driven sliding sleeve 2, and said arcuation projection two 3-1 evenly distribute around the central axis of active sliding sleeve 3.
As depicted in figs. 1 and 2, said power transmission shaft 1 is provided with keyway 1-2, and said active sliding sleeve 3 is slidingly mounted on power transmission shaft 1 through the key 8 that is installed in the keyway 1-2 with the jackscrew 3-2 that is used to hold out against key 8.
Like Fig. 1, Fig. 4 and shown in Figure 6, the outer contour of said arcuation projection one 2-1 and arcuation projection two 3-1 is identical and be circular arc, elliptic arc or involute, is optimal selection with the involute.
As shown in Figure 1, be provided with pad 9 between said active sliding sleeve 3 and the spring 4, be provided with pad 9 between said sleeve 5 and the spring 4.
The course of work of the utility model tapping anti-off device is: as shown in Figure 1, at first the power transmission shaft 1 with this tapping anti-off device is installed on drilling machine or the tapping machine, and screw tap is installed in this device lower end through tap chuck 7.When the needs tapping; Start drilling machine or tapping machine and make its main shaft low speed rotation; Along with the rotation of drilling machine or tapping machine, initiatively sliding sleeve 3 rotates with power transmission shaft 1 under the torsional interaction of key 8, and initiatively arcuation projection one 2-1 of arcuation projection two 3-1 on driven sliding sleeve 2 on the sliding sleeve 3 transmits moment of torsion; Screw tap just rotates with driven sliding sleeve 2, thereby accomplishes tapping processing.When screw tap in the tapping process; When initiatively sliding sleeve 3 moment of torsion that passes to driven sliding sleeve 2 reaches the ultimate torque of screw tap; The pressure that the outer surface of arcuation projection one 2-1 overcomes spring 4 to the reaction force of active sliding sleeve 3 makes initiatively, and sliding sleeve 3 moves up; Make active sliding sleeve 3 occur skidding with driven sliding sleeve 2, moment of torsion can't continue to transmit, thereby the protection screw tap is not twisted off.
The above; It only is the preferred embodiment of the utility model; Be not that the utility model is done any restriction; Every according to the utility model technical spirit to any simple modification, change and equivalent structure transformation that above embodiment did, all still belong in the protection domain of the utility model technical scheme.
Claims (5)
1. tapping anti-off device; It is characterized in that: comprise that the lower end has the power transmission shaft of boss (1-1) (1) and is set in driven sliding sleeve (2), active sliding sleeve (3), spring (4), sleeve (5) and the adjusting nut (6) on the power transmission shaft (1) successively; Said driven sliding sleeve (2) is installed in power transmission shaft (1) lower end through boss (1-1); Said driven sliding sleeve (2) upper surface is provided with at least two arcuation projections one (2-1); Said driven sliding sleeve (2) is inner to be equipped with tap chuck (7) through bolt; Said driven sliding sleeve (2) upper end is provided with the active sliding sleeve (3) that is slidingly mounted on the power transmission shaft (1), and said active sliding sleeve (3) lower surface is provided with at least two arcuation projections two (3-1) that match with arcuation projection one (2-1), and said active sliding sleeve (3) upper end is connected with spring (4); Said spring (4) upper end is connected with sleeve (5), and said sleeve (5) upper end is provided with adjusting nut (6).
2. according to the described tapping anti-off device of claim 1, it is characterized in that: said arcuation projection one (2-1) evenly distributes around the central axis of driven sliding sleeve (2), and said arcuation projection two (3-1) evenly distributes around the central axis of active sliding sleeve (3).
3. according to the described tapping anti-off device of claim 1; It is characterized in that: said power transmission shaft (1) is provided with keyway (1-2), and said active sliding sleeve (3) is slidingly mounted on power transmission shaft (1) through the jackscrew (3-2) that is installed in the key (8) in the keyway (1-2) and is used to hold out against key (8).
4. according to the described tapping anti-off device of claim 1, it is characterized in that: the outer contour of said arcuation projection one (2-1) and arcuation projection two (3-1) is identical and be circular arc, elliptic arc or involute.
5. according to the described tapping anti-off device of claim 1, it is characterized in that: be provided with pad (9) between said active sliding sleeve (3) and the spring (4), be provided with pad (9) between said sleeve (5) and the spring (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204574628U CN202317316U (en) | 2011-11-17 | 2011-11-17 | Anti-cracking tapping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204574628U CN202317316U (en) | 2011-11-17 | 2011-11-17 | Anti-cracking tapping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202317316U true CN202317316U (en) | 2012-07-11 |
Family
ID=46429313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204574628U Expired - Fee Related CN202317316U (en) | 2011-11-17 | 2011-11-17 | Anti-cracking tapping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202317316U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103089782A (en) * | 2012-12-28 | 2013-05-08 | 苏州焕乾纺织有限公司 | Combined flexible screw of loom |
-
2011
- 2011-11-17 CN CN2011204574628U patent/CN202317316U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103089782A (en) * | 2012-12-28 | 2013-05-08 | 苏州焕乾纺织有限公司 | Combined flexible screw of loom |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20121117 |