CN203380450U - Length compensation mechanism for elastic tap chuck - Google Patents
Length compensation mechanism for elastic tap chuck Download PDFInfo
- Publication number
- CN203380450U CN203380450U CN201320467468.2U CN201320467468U CN203380450U CN 203380450 U CN203380450 U CN 203380450U CN 201320467468 U CN201320467468 U CN 201320467468U CN 203380450 U CN203380450 U CN 203380450U
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- CN
- China
- Prior art keywords
- chuck
- circular sleeve
- compensation mechanism
- chuck handle
- length compensation
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Abstract
The utility model relates to a length compensation mechanism for an elastic tap chuck. The length compensation mechanism comprises a chuck handle, a circular sleeve and a clamping base, wherein the chuck handle is sleeved with the circular sleeve, a pit is formed outside the chuck handle, a strip-shaped through groove is formed in the position, matched with the pit, of the side wall of the circular sleeve, a steel ball for transmitting the torque is arranged between the pit and the through groove, a plurality of steel beads are arranged on the periphery of the circular sleeve, the steel beads are connected with the clamping base through a clutch mechanism for transmitting the torque, and a length compensation mechanism body is arranged between the chuck handle and the circular sleeve. Due to the adoption of the structure, errors caused by the synchronization of feeding and rotation of a main shaft of a machine tool can be absorbed. Due to the fact that the combination of a first spring and a second spring is adopted, the capacity of the length mechanism compensation mechanism for absorbing torsion can be improved.
Description
Technical field
the utility model relates to a kind of fixture for machine tool, particularly a kind of screw tap is remained on to the tap chuck on machine tool chief axis.
Background technology
digit Control Machine Tool is when work, and screw tap is done the rotary cutting motion under driven by servomotor, and the axially-movable of screw tap is controlled by servomotor.Because when screw tap carries out cutting movement, an end of screw tap is fixed on lathe, if the torsion applied on the screw tap top surpasses the clamping torsion of screw tap, screw tap will be damaged.Be used for preventing the excessive damage screw tap of torsion so need to increase a kind of compensation mechanism.
Chinese invention patent application prospectus CN102189302A discloses a kind of overload protection device for screw tap, comprises handle of a knife, and the outer slip cap of handle of a knife has a drive sleeve, and the conical lower portion of handle of a knife is stretched out from drive sleeve ground; Have on handle of a knife in a waist type groove drive sleeve is connected with handle of a knife; The drive sleeve overcoat has a nut sleeve; Be positioned at the drive sleeve below in nut sleeve one tap chuck is installed, have a square hole in the middle of tap chuck, in the middle of being positioned in tap chuck, the both sides of square hole upper end are separately installed with adjustment screw, and there is respectively steel ball the inboard of adjustment screw, and the Compress Spring that on adjustment screw there is cover just in time withstands on; The periphery of tap chuck upper surface on average has several apertures; The lower end of drive sleeve faces several apertures and has several bar holes, and bar hole is separately installed with the ball head column withstood by holddown spring.This invention can be protected screw tap automatically in the situation that the screw tap moment of torsion increases, and avoids screw tap to fracture, and reduces production costs.
Summary of the invention
the utility model technical issues that need to address are to provide the tap chuck that a kind of axis feeding that can absorb lathe and rotary synchronous produce error.
For solving above-mentioned technical problem, the length compensation mechanism of a kind of elastic yarn conial chuck of the utility model comprises the chuck handle, circular sleeve and clamping seats, described circular sleeve is sleeved on the chuck handle outside, described chuck handle outside is provided with pit, the position that described circular sleeve sidewall and pit adapt has the strip groove, the steel ball of transmitting torque is set between described pit and groove, described circular sleeve surrounding is provided with some steel balls, described steel ball is connected with clamping seats by the clutch of transmitting torque, be provided with length compensation mechanism between described chuck handle and circular sleeve.
Further, described length compensation mechanism comprises the linear bearing arranged between chuck handle and circular sleeve, has the through hole adapted with steel ball on described linear bearing; Have circular cavity in the middle of described chuck handle, be provided with dismountable elastic buffering mechanism in described circular cavity.
Further, described elastic buffering mechanism comprises the guide pin bushing with step that is fixed on chuck handle circular cavity end, and described guide pin bushing is sleeved on the outside of being fixed in the circular sleeve inner guide; Also comprise clamp nut, described guide rod is through the clamp nut intermediate throughholes, and described clamp nut outer surface is connected with chuck handle circular cavity inwall by screw thread pair; Be provided with the first spring between the step of described clamp nut and guide pin bushing.
Further, the guide rod arranged outside between described guide pin bushing top and circular sleeve has the second spring.
After adopting said structure, axis feeding and rotary synchronous that the length compensation mechanism of a kind of elastic yarn conial chuck of the utility model can absorb lathe have produced error; When to be axis feeding asynchronous with rotation, the rotation of chuck handle will compress chuck handle and circular sleeve, and the torsion of collet handle is changed to axial compression and is absorbed by spring like this.Can improve by the combination that the first spring and the second spring are set the ability that length compensation mechanism absorbs torsion.
The accompanying drawing explanation
below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is structural representation of the present utility model.
The structural representation that Fig. 2 a is the utility model chuck handle.
The axial cutaway view that Fig. 2 b is the utility model chuck handle.
The structural representation that Fig. 3 is the utility model clamp nut.
The structural representation that Fig. 4 a is the utility model circular sleeve.
The axial cutaway view that Fig. 4 b is the utility model circular sleeve.
The structural representation that Fig. 5 a is the utility model guide pin bushing.
The axial cutaway view that Fig. 5 b is the utility model guide pin bushing.
In figure: 1 is the chuck handle, and 2 is the first spring, and 3 is guide rod, and 9 is the second spring, and 17 is guide pin bushing, and 18 is linear bearing, and 19 is circular sleeve, and 22 is steel ball
1-1 is circular cavity, and 1-2 is screw thread, and 1-3 is pit, 5-1 is through hole, and 5-2 is the gear teeth, and 5-3 is screw thread, 5-4 is groove, and 7-1 is screw thread, and 7-2 is through hole, 8-1 is through hole, and 8-2 is the gear teeth, and 8-3 is screw thread, 17-1 is step, and 17-2 is cavity, and 19-1 is the strip groove, 19-2 is pit, and 19-3 is cavity, and 19-4 is pit
The specific embodiment
As shown in Figure 1, elastic yarn conial chuck of the present utility model comprises chuck handle 1, circular sleeve 19 and clamping seats 14.As shown in Figure 4 b, have the described circular sleeve 19 of the cavity 19-3 adapted with chuck handle 1 on described circular sleeve 19 and be sleeved on chuck handle 1 outside.For the torsion by the chuck handle passes to circular sleeve, as shown in Figure 2 a and 2 b, described chuck handle 1 outside is provided with pit 1-3; As shown in Fig. 1, Fig. 4 a and Fig. 4 b, the position that described circular sleeve 19 sidewalls and pit 1-3 adapt has strip groove 19-1, and the steel ball 22 of transmitting torque is set between described pit 1-3 and groove 19-1.When lathe drives 1 rotation of chuck handle, steel ball 22 can be delivered to the torsion of chuck handle on circular sleeve 19 like this, thereby makes circular sleeve rotate.Because the clamping seats 14 of elastic yarn conial chuck is used for clamping screw tap, need to drives the screw tap rotation by clamping seats 14 and realize feeding, so the torsion of circular sleeve 19 need to be passed to clamping seats 14.As shown in Figure 1, described circular sleeve 19 both sides have the pit 19-4 adapted with steel ball, and described steel ball is connected with clamping seats 14 by the clutch of transmitting torque.
Be provided with length compensation mechanism between described chuck handle and circular sleeve, as shown in Figure 1, described length compensation mechanism comprises the linear bearing 18 arranged between chuck handle 1 and circular sleeve 19, and linear bearing 18 leaves certain distance with circular sleeve 19 bottoms, is 10-15mm.Have the through hole adapted with steel ball 22 on described linear bearing 18, the chuck handle both can transmit torsion to circular sleeve 19 by steel ball 22 like this, simultaneously also can be so that chuck handle 1 moves in the cavity 19-3 of circular sleeve along linear bearing.As shown in Fig. 1 a and Fig. 1 b, have circular cavity 1-1 in the middle of described chuck handle 1, be provided with dismountable elastic buffering mechanism between described circular cavity and circular sleeve.
As shown in Fig. 5 a and Fig. 5 b, described elastic buffering mechanism comprises the guide pin bushing with step 17-1 17 that is fixed on chuck handle circular cavity 1-1 end, have the cavity 17-2 adapted with guide rod 3 in described guide pin bushing, described guide pin bushing is sleeved on the outside of being fixed in circular sleeve inner guide 3.Described elastic buffering mechanism also comprises clamp nut 7, and as shown in Figure 3, clamp nut 7 has through hole 7-2, and the clamp nut outside is provided with screw thread 7-1.Described guide rod is through clamp nut intermediate throughholes 7-2.As shown in Figure 2 b, described chuck handle circular cavity inwall is provided with screw thread 1-2, and described clamp nut outer surface is connected with chuck handle circular cavity inwall with the screw thread pair that screw thread 1-2 forms by screw thread 7-1.Be provided with the first spring 2 between the step 17-1 of described clamp nut and guide pin bushing; Guide rod arranged outside between described guide pin bushing top and circular sleeve has the second spring 9.Chuck handle 1, elastic device and steel ball 22 can be along described linear bearing 18 in the interior movements of described circular sleeve 19, and axis feeding and the rotary synchronous that can absorb lathe have produced error; When to be axis feeding asynchronous with rotation, the rotation of chuck handle will compress chuck handle and circular sleeve, and the torsion of collet handle is changed to axial compression and is absorbed by spring like this.Can improve by the combination that the first spring and the second spring are set the ability that length compensation mechanism absorbs torsion.
Claims (4)
1. the length compensation mechanism of an elastic yarn conial chuck, comprise chuck handle, circular sleeve and clamping seats, described circular sleeve is sleeved on the chuck handle outside, described chuck handle outside is provided with pit, the position that described circular sleeve sidewall and pit adapt has the strip groove, the steel ball of transmitting torque is set between described pit and groove, described circular sleeve surrounding is provided with some steel balls, described steel ball is connected with clamping seats by the clutch of transmitting torque, it is characterized in that: between described chuck handle and circular sleeve, be provided with length compensation mechanism.
2. according to the length compensation mechanism of a kind of elastic yarn conial chuck claimed in claim 1, it is characterized in that: described length compensation mechanism comprises the linear bearing arranged between chuck handle and circular sleeve, has the through hole adapted with steel ball on described linear bearing; Have circular cavity in the middle of described chuck handle, be provided with dismountable elastic buffering mechanism in described circular cavity.
3. according to the length compensation mechanism of a kind of elastic yarn conial chuck claimed in claim 2, it is characterized in that: described elastic buffering mechanism comprises the guide pin bushing with step that is fixed on chuck handle circular cavity end, and described guide pin bushing is sleeved on the outside of being fixed in the circular sleeve inner guide; Also comprise clamp nut, described guide rod is through the clamp nut intermediate throughholes, and described clamp nut outer surface is connected with chuck handle circular cavity inwall by screw thread pair; Be provided with the first spring between the step of described clamp nut and guide pin bushing.
4. according to the length compensation mechanism of a kind of elastic yarn conial chuck claimed in claim 3, it is characterized in that: the guide rod arranged outside between described guide pin bushing top and circular sleeve has the second spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320467468.2U CN203380450U (en) | 2013-08-01 | 2013-08-01 | Length compensation mechanism for elastic tap chuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320467468.2U CN203380450U (en) | 2013-08-01 | 2013-08-01 | Length compensation mechanism for elastic tap chuck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203380450U true CN203380450U (en) | 2014-01-08 |
Family
ID=49868977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320467468.2U Expired - Fee Related CN203380450U (en) | 2013-08-01 | 2013-08-01 | Length compensation mechanism for elastic tap chuck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203380450U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110421389A (en) * | 2019-07-17 | 2019-11-08 | 成都成林数控刀具有限公司 | A kind of tapping clamp device knife handle of the axial micro- compensation of band |
| WO2024124470A1 (en) * | 2022-12-15 | 2024-06-20 | 威海达旺机械科技有限公司 | Drill connection rod |
-
2013
- 2013-08-01 CN CN201320467468.2U patent/CN203380450U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110421389A (en) * | 2019-07-17 | 2019-11-08 | 成都成林数控刀具有限公司 | A kind of tapping clamp device knife handle of the axial micro- compensation of band |
| CN110421389B (en) * | 2019-07-17 | 2024-03-15 | 成都成林数控刀具股份有限公司 | Tapping chuck knife handle with axial micro-compensation |
| WO2024124470A1 (en) * | 2022-12-15 | 2024-06-20 | 威海达旺机械科技有限公司 | Drill connection rod |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140108 Termination date: 20140801 |
|
| EXPY | Termination of patent right or utility model |