CN102974901B - Flexible tapping clamp - Google Patents
Flexible tapping clamp Download PDFInfo
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- CN102974901B CN102974901B CN201110262579.5A CN201110262579A CN102974901B CN 102974901 B CN102974901 B CN 102974901B CN 201110262579 A CN201110262579 A CN 201110262579A CN 102974901 B CN102974901 B CN 102974901B
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- connector
- universal joint
- screw tap
- sleeve
- bearing pin
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Abstract
The invention discloses a kind of flexible tapping clamp, comprise fixed handle, sleeve, universal joint and screw tap grip shank; The lower end of described fixed handle is connected with the upper end of described sleeve, described universal joint is arranged in described sleeve, the upper end of described universal joint is connected with the roof of described sleeve, and the lower end of described universal joint exceeds the openend of described sleeve, and the lower end of described universal joint is connected with described screw tap grip shank.Flexible tapping clamp provided by the invention, owing to being provided with sleeve and universal joint between fixed handle and screw tap grip shank, universal joint is arranged in sleeve, when screwing operation, under there are the situations such as deviation, screw tap manufacturing defect or machine tool feed precision are not enough at screw tap center, universal joint can regulate the precision between fixed handle and screw tap grip shank, can improve tapping precision, increases the service life of screw tap.
Description
Technical field
The present invention relates to tapping clamp technology, especially relate to a kind of flexible tapping clamp.
Background technology
Existing tapping clamp comprises fixed handle and screw tap grip shank, fixed handle and screw tap grip shank are rigidly connected, when carrying out screwing operation, the installation portion of fixed handle is fixed on the rotating shaft of drilling machine, be arranged on by screw tap in screw tap grip shank, the rotating shaft of drilling machine rotates, and drives fixed handle and screw tap grip shank to rotate, and then drive screw tap to rotate, tapping is carried out to the hole on workpiece.
Existing tapping clamp to the precision of tapping system and rigid requirements higher, in actual tapping process, when screw tap center have that deviation, tapping clamp chucking power are not enough, machining screw is comparatively dark, screw tap manufacturing defect or the situation such as machine tool feed precision is not enough time, often cause screw tap easy to break, the problems such as accuracy of thread is poor, form of thread defect.
Further, if the rotating shaft of drilling machine swings, tapping clamp can be driven to swing thereupon, and then drive screw tap to swing, cause screw thread process defective.Drilling machine cannot with the specific screw tap pitch exact matching used, always subtle difference is there is between the screw thread of drilling machine processing and screw tap actual pitch, now need will apply extra axial force on screw tap, thus can reduce life of tap and thread quality.
Summary of the invention
The invention provides a kind of flexible tapping clamp, in order to solve that tapping precision of the prior art is lower and screw tap holds flimsy defect, tapping precision can be improved, increase the service life of screw tap.
The invention provides a kind of flexible tapping clamp, comprise fixed handle, sleeve, universal joint and screw tap grip shank;
The lower end of described fixed handle is connected with the upper end of described sleeve, described universal joint is arranged in described sleeve, the upper end of described universal joint is connected with the roof of described sleeve, and the lower end of described universal joint exceeds the openend of described sleeve, and the lower end of described universal joint is connected with described screw tap grip shank.
Preferably, the outer cover of described universal joint is connected to elastic device, the outer wall interference fit of this elastic device and described universal joint.
Preferably, described elastic device is spring or rubber bush.
Preferably, described universal joint comprises connector, intermediate connector and lower connector; Described upper connector is flexibly connected by the first bearing pin with described intermediate connector, and described intermediate connector is flexibly connected by the second bearing pin with described lower connector;
Described first bearing pin is mutually vertical with the axis of described second bearing pin.
Preferably, the bottom of described upper connector has the first open slot, the top of described intermediate connector has the first contiguous block, described first contiguous block coordinates with described first open slot, described first bearing pin is through described first open slot and the first contiguous block, be connected with intermediate connector by described upper connector, described upper connector and intermediate connector can rotate around described first bearing pin;
The bottom of described intermediate connector has the second open slot, the top of described lower connector has the second contiguous block, described second bearing pin is through described second open slot and the second contiguous block, be connected with lower connector by described intermediate connector, described intermediate connector and lower connector can rotate around described second bearing pin.
Preferably, the bottom of described lower connector offers axial connecting hole and radial screwed hole, and the top of described screw tap grip shank has clamping part, and described clamping part coordinates with described connecting hole, coordinated with described screwed hole by bolt, described for institute lower connector is connected with described screw tap grip shank.
Preferably, described intermediate connector has boss, described boss is fastened on the outside of the openend of described sleeve.
Preferably, between the openend of described sleeve and described lower connector, there is gap.
Flexible tapping clamp provided by the invention, owing to being provided with sleeve and universal joint between fixed handle and screw tap grip shank, universal joint is arranged in sleeve, when screwing operation, under there are the situations such as deviation, screw tap manufacturing defect or machine tool feed precision are not enough at screw tap center, universal joint can regulate the precision between fixed handle and screw tap grip shank, can improve tapping precision, increases the service life of screw tap
Accompanying drawing explanation
The structural representation of the flexible tapping clamp that Fig. 1 provides for first embodiment of the invention;
Fig. 2 is the partial sectional view of the flexible tapping clamp in Fig. 1;
The structural representation of the universal joint that Fig. 3 provides for second embodiment of the invention.
Reference numeral:
1-fixed handle; 2-sleeve; 3-universal joint;
The upper connector of 31-; 311-first open slot; 32-intermediate connector;
321-first contiguous block; 322-second open slot; Connector under 33-;
331-second contiguous block; 332-boss; 333-screwed hole;
334-connecting hole; 4-screw tap grip shank; 41-clamping part;
42-screw tap hole; 5-spring; 6-bolt.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
See figures.1.and.2, the structural representation of the flexible tapping clamp that Fig. 1 provides for first embodiment of the invention; Fig. 2 is the partial sectional view of the flexible tapping clamp in Fig. 1.
In the first embodiment of the present invention, flexible tapping clamp, comprises fixed handle 1, sleeve 2, universal joint 3 and screw tap grip shank 4.
The lower end of fixed handle 1 is connected with the upper end of sleeve 2, and universal joint 3 is arranged in sleeve 2, and the upper end of universal joint 3 is connected with the roof of sleeve 2, and the lower end of universal joint 3 exceeds the openend of sleeve 2, and the lower end of universal joint 3 is connected with screw tap grip shank 4.
Universal joint 3 can rotate within the specific limits, the outer cover of universal joint 3 is connected to elastic device, the outer wall interference fit of this elastic device and universal joint 3, elastic device can limit the rotation amplitude of universal joint 3, ensures the axis degree between fixed handle 1 and screw tap grip shank 4.Particularly, in the present embodiment, elastic device is spring 5, and the bottom of spring 5 has adjusting nut (not shown), can according to actual needs, the pretightning force of regulating spring 5.In addition, elastic device also can select rubber bush.
The flexible tapping clamp that the present embodiment provides, owing to being provided with sleeve 2 and universal joint 3 between fixed handle 1 and screw tap grip shank 4, universal joint 3 is arranged in sleeve 2, when screwing operation, under there are the situations such as deviation, screw tap manufacturing defect or machine tool feed precision are not enough at screw tap center, universal joint 3 can regulate the precision between fixed handle 1 and screw tap grip shank 4, can improve tapping precision, increases the service life of screw tap.
With reference to the structural representation of the universal joint that figure 3, Fig. 3 provides for second embodiment of the invention.
In the present embodiment, universal joint 3 comprises connector 31, intermediate connector 32 and lower connector 33.
Upper connector 31 is flexibly connected by the first bearing pin 34 with intermediate connector 32, and intermediate connector 32 is connected by the second bearing pin movable 35 with lower connector 33.First bearing pin 34 is mutually vertical with the axis of the second bearing pin 35.
Particularly, the bottom of upper connector 31 has the first open slot 311, the top of intermediate connector 32 has the first contiguous block 321, first contiguous block 321 coordinates with described first open slot 311, first bearing pin 34 is through the pin shaft hole on the first open slot 311 and the first contiguous block 321, be connected with intermediate connector 32 by upper connector 31, upper connector 31 can rotate around the first bearing pin 34 with intermediate connector 32.
The bottom of intermediate connector 32 has the second open slot 322, the top of lower connector 33 has the second contiguous block 331, second bearing pin 35 is through the pin shaft hole on the second open slot 322 and the second contiguous block 331, be connected with lower connector 33 by intermediate connector 32, intermediate connector 32 and lower connector 33 can rotate around the second bearing pin 35.Due to the axes normal of the first bearing pin 34 and the second bearing pin 35, thus go up connector 31 and lower connector 33 can multidirectionally regulate relative to intermediate connector 32, be similar to cating nipple.
The flexible tapping clamp that the present embodiment provides, owing to being provided with sleeve 2 and universal joint 3 between fixed handle 1 and screw tap grip shank 4, universal joint 3 is arranged in sleeve 2, when screwing operation, under there are the situations such as deviation, screw tap manufacturing defect or machine tool feed precision are not enough at screw tap center, universal joint 3 can regulate the precision between fixed handle 1 and screw tap grip shank 4, can improve tapping precision, increases the service life of screw tap.
In addition, the bottom of lower connector 33 offers axial connecting hole 334 and radial screwed hole 333, and the top of screw tap grip shank 4 has clamping part 41, and clamping part 41 coordinates with connecting hole 334, be screwed into screwed hole 333 by bolt 6, lower connector 33 is connected with screw tap grip shank 4.The bottom of screw tap grip shank 4 has screw tap hole 42, when needing the screw thread processing different size, can change the screw tap of different size easily.
It should be noted that intermediate connector 32 to have boss 332, boss 332 is fastened on the outside of the openend of sleeve 2, avoids connector 31 and lower connector 33 to regulate excessive relative to intermediate connector 32.
Gap between the openend of intermediate connector 32 and sleeve 2 can be determined according to the regulated quantity of reality, ensures the machining accuracy of screw thread.
Last it is noted that above embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (7)
1. a flexible tapping clamp, is characterized in that, comprises fixed handle, sleeve, universal joint and screw tap grip shank;
The lower end of described fixed handle is connected with the upper end of described sleeve, described universal joint is arranged in described sleeve, the upper end of described universal joint is connected with the roof of described sleeve, and the lower end of described universal joint exceeds the openend of described sleeve, and the lower end of described universal joint is connected with described screw tap grip shank;
Described universal joint comprises connector, intermediate connector and lower connector; Described upper connector is flexibly connected by the first bearing pin with described intermediate connector, and described intermediate connector is flexibly connected by the second bearing pin with described lower connector;
Described first bearing pin is mutually vertical with the axis of described second bearing pin.
2. flexible tapping clamp according to claim 1, is characterized in that, the outer cover of described universal joint is connected to elastic device, the outer wall interference fit of this elastic device and described universal joint.
3. flexible tapping clamp according to claim 2, is characterized in that, described elastic device is spring or rubber bush.
4. flexible tapping clamp according to claim 1, it is characterized in that, the bottom of described upper connector has the first open slot, the top of described intermediate connector has the first contiguous block, described first contiguous block coordinates with described first open slot, described first bearing pin is through described first open slot and the first contiguous block, and be connected with intermediate connector by described upper connector, described upper connector and intermediate connector can rotate around described first bearing pin;
The bottom of described intermediate connector has the second open slot, the top of described lower connector has the second contiguous block, described second bearing pin is through described second open slot and the second contiguous block, be connected with lower connector by described intermediate connector, described intermediate connector and lower connector can rotate around described second bearing pin.
5. the flexible tapping clamp according to claim 1 or 4, it is characterized in that, the bottom of described lower connector offers axial connecting hole and radial screwed hole, the top of described screw tap grip shank has clamping part, described clamping part coordinates with described connecting hole, coordinated with described screwed hole by bolt, described lower connector is connected with described screw tap grip shank.
6. the flexible tapping clamp according to claim 1 or 4, is characterized in that, described intermediate connector has boss, and described boss is fastened on the outside of the openend of described sleeve.
7. the flexible tapping clamp according to claim 1 or 4, is characterized in that, has gap between the openend of described sleeve and described lower connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110262579.5A CN102974901B (en) | 2011-09-06 | 2011-09-06 | Flexible tapping clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110262579.5A CN102974901B (en) | 2011-09-06 | 2011-09-06 | Flexible tapping clamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102974901A CN102974901A (en) | 2013-03-20 |
| CN102974901B true CN102974901B (en) | 2016-04-20 |
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ID=47849408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110262579.5A Active CN102974901B (en) | 2011-09-06 | 2011-09-06 | Flexible tapping clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102974901B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108705158B (en) * | 2018-08-06 | 2024-01-26 | 昆山艾尔发计量科技有限公司 | Self-centering lifting chuck |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2458113Y (en) * | 2001-01-19 | 2001-11-07 | 徐进来 | Improved universal multi-shaft drill bit |
| CN2548742Y (en) * | 2002-06-15 | 2003-05-07 | 杭州长虹机械制造有限公司 | Ball universal joint for multi-shaft drill |
| CN2712522Y (en) * | 2004-06-28 | 2005-07-27 | 徐进来 | Multiaxial tapping head adaptable to different tooth distance and power-driven processing |
| CN2801357Y (en) * | 2005-06-18 | 2006-08-02 | 应安义 | Portable bisection rocker arm pneumatic threading machine |
| CN202317318U (en) * | 2011-09-06 | 2012-07-11 | 北京南口轨道交通机械有限责任公司 | Flexible tapping clamp |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2944722B1 (en) * | 2009-04-28 | 2014-10-10 | Arts | AXIAL VIBRATION DRILLING HEAD |
-
2011
- 2011-09-06 CN CN201110262579.5A patent/CN102974901B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2458113Y (en) * | 2001-01-19 | 2001-11-07 | 徐进来 | Improved universal multi-shaft drill bit |
| CN2548742Y (en) * | 2002-06-15 | 2003-05-07 | 杭州长虹机械制造有限公司 | Ball universal joint for multi-shaft drill |
| CN2712522Y (en) * | 2004-06-28 | 2005-07-27 | 徐进来 | Multiaxial tapping head adaptable to different tooth distance and power-driven processing |
| CN2801357Y (en) * | 2005-06-18 | 2006-08-02 | 应安义 | Portable bisection rocker arm pneumatic threading machine |
| CN202317318U (en) * | 2011-09-06 | 2012-07-11 | 北京南口轨道交通机械有限责任公司 | Flexible tapping clamp |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102974901A (en) | 2013-03-20 |
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Address after: 102202 Beijing city Changping District South Town Road North South Town West No. 584 No. 585 Patentee after: Beijing Zhongche Nankow Machinery Co. Ltd. Address before: 102202 Beijing city Changping District town of South Road North Patentee before: Beijing NanKou Railway Transit Machinery Co., Ltd. |