CN201586883U - Main shaft knife loosening device - Google Patents
Main shaft knife loosening device Download PDFInfo
- Publication number
- CN201586883U CN201586883U CN2009202976658U CN200920297665U CN201586883U CN 201586883 U CN201586883 U CN 201586883U CN 2009202976658 U CN2009202976658 U CN 2009202976658U CN 200920297665 U CN200920297665 U CN 200920297665U CN 201586883 U CN201586883 U CN 201586883U
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- China
- Prior art keywords
- main shaft
- knife
- buckle
- fixed
- spring
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- Expired - Fee Related
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Abstract
The utility model discloses a main shaft knife loosening device, which comprises a main shaft box and a main shaft sleeve, wherein a support pillar, a guide pillar, a spring, a spacer sleeve, a pinch plate seat, a pinch plate, and a floating knife screw cap are arranged on the main shaft box, the floating knife screw cap is fixedly connected with the main shaft sleeve, the pinch plate is fixed together with the pinch plate seat and fixed on the main shaft box together with the spacer sleeve through the guide roller and the spring, and the support pillar is fixed on the pinch plate seat. In the utility model, the floating knife screw cap on the main shaft sleeve is clamped by the pinch plate, so that load transmitted from a plate spring is absorbed by the floating knife screw cap, which effectively protects a main shaft bearing and prolongs the service life of a main shaft.
Description
Technical field
The utility model relates to a kind of main shaft device for loosing knife of controlling on the numerical control machining center, particularly relates to the device for loosing knife of the unsteady left-hand thread of a kind of energy.
Background technology
The core component of numerical control machining center is its main shaft, and what the main shaft life-span was made a big impact is the bearing of main shaft.The length in main shaft life-span has inseparable getting in touch with main shaft bearing.
Traditional cutter-removing mechanism (as Fig. 1), detailed process is as follows: at first, by Hydraulic Station hydraulic oil is transferred in the knife striking cylinder 12, piston rod 11 moves right together with broaching tool bar 13, dish spring 14 compressive deformations, and load is delivered on the rack sleeve 15; Subsequently, by locking nut 16 (locking nut 16 with rack sleeve 15 by being threaded onto), pad 17, spacer ring 19, load on the rack sleeve 15 is delivered on the main shaft bearing 18 the most at last, and long-time use must have a strong impact on the service life of bearing 18.
The utility model content
Be directed to this, the purpose of this utility model is that the device for loosing knife that provides a kind of energy to float left-hand thread slows down the stressed of main shaft bearing, thereby prolonged the service life of main shaft.
For solving the problems of the technologies described above, the technical scheme that the utility model provides is: a kind of main shaft device for loosing knife, include main spindle box and rack sleeve, described main spindle box is provided with support column, guide pillar, spring, spacer, buckle seat, buckle and the nut of forging a knife that floats, the described unsteady fixed by nut of forging a knife is connected on the rack sleeve, described buckle and buckle seat are fixed together, and reinstate guide pillar with spacer one again, spring is fixed on the main spindle box, and described support column is fixed on the buckle seat.
Preferably, the described unsteady nut of forging a knife is to be fixedly connected via screw on the rack sleeve.
Preferably, described buckle and buckle seat are to be fixed together by screw.
Compared with prior art, the utility model is when main shaft pine cutter, and source of the gas is converted to oil pressure by pressurized cylinder with air pressure, and piston rod is ejected downwards about 2mm to the main spindle broach bar.Because of the pressurized cylinder stroke is 13mm, make that piston rod continues to stretch out, pressurized cylinder will drive support column, buckle seat and buckle and together move upward, and the unsteady nut of forging a knife on buckle and main shaft blocks.At this moment, piston rod continues to move downward, and promote the main spindle broach bar and carry out loose cutter process, dish spring compressive deformation, and load is delivered on the rack sleeve.But because of the unsteady nut of forging a knife on the rack sleeve is blocked by buckle, make all to be absorbed, effectively protected main shaft bearing by the unsteady nut of forging a knife from the load of dish spring transmission.
Description of drawings
Fig. 1 is existing device for loosing knife schematic diagram;
Fig. 2 is a structural representation of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described in detail, the description of this part only is exemplary and explanatory, should any restriction not arranged to protection domain of the present utility model.
The device for loosing knife of the unsteady left-hand thread of a kind of energy as shown in Figure 2, form support column 27, guide pillar 26, spring 25, spacer 29, buckle seat 24, buckle 23, the unsteady nut 22 of forging a knife by following parts, wherein float and forge a knife nut 22 by being threaded onto on the rack sleeve, buckle 23 is screwed together with buckle seat 24, together be fixed on the main spindle box 20 with guide pillar 26, spring 25 together with spacer 29,27 of support columns are fixed on and are used to support pressurized cylinder on the buckle seat 24.
When main shaft 21 loose cuttves, source of the gas is converted to oil pressure by pressurized cylinder with air pressure, and piston rod is ejected downwards about 2mm to the main spindle broach bar.Because of the pressurized cylinder stroke is 13mm, make that piston rod continues to stretch out, pressurized cylinder will drive support column 27, buckle seat 24 together moves upward with buckle 23, and the unsteady nut 22 of forging a knife on buckle 23 and main shaft 21 blocks.At this moment, piston rod continues to move downward, and promote the main spindle broach bar and carry out loose cutter process, dish spring compressive deformation, and load is delivered on the rack sleeve.But because of the unsteady nut of forging a knife on the rack sleeve is blocked by buckle, make all to be absorbed, effectively protected main shaft bearing by the unsteady nut of forging a knife from the load of dish spring transmission.
Concrete installation steps are as follows: at first, two buckles are inserted into to float forge a knife below the nut, then 4 spacers are put on the main spindle box plane, again the buckle seat is pressed onto on the spacer, with buckle seat and buckle locking (buckle and the spacing of forging a knife between the nut of floating can realize by the height of adjusting spacer), again the guide pillar of putting on spring is fixed to (4 guide pillars can avoid the buckle seat lifting, having when falling the possibility of rotation) on the main spindle box 20 with screw.At last, support column, pressurized cylinder are fixed get final product successively.The whole erection process is convenient, simple, is convenient to assembling in batches.
It below only is preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; some improvements and modifications can also be made, also protection domain of the present utility model should be considered as.
Claims (3)
1. main shaft device for loosing knife, include main spindle box and rack sleeve, it is characterized in that: described main spindle box is provided with support column, guide pillar, spring, spacer, buckle seat, buckle and the nut of forging a knife that floats, the described unsteady fixed by nut of forging a knife is connected on the rack sleeve, described buckle and buckle seat are fixed together, reinstate guide pillar with spacer one again, spring is fixed on the main spindle box, described support column is fixed on the buckle seat.
2. main shaft device for loosing knife according to claim 1 is characterized in that: the described unsteady nut of forging a knife is to be fixedly connected via screw on the rack sleeve.
3. main shaft device for loosing knife according to claim 1 is characterized in that: described buckle and buckle seat are to be fixed together by screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202976658U CN201586883U (en) | 2009-12-18 | 2009-12-18 | Main shaft knife loosening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202976658U CN201586883U (en) | 2009-12-18 | 2009-12-18 | Main shaft knife loosening device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201586883U true CN201586883U (en) | 2010-09-22 |
Family
ID=42746651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202976658U Expired - Fee Related CN201586883U (en) | 2009-12-18 | 2009-12-18 | Main shaft knife loosening device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201586883U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102019559A (en) * | 2010-11-25 | 2011-04-20 | 成都普瑞斯数控机床有限公司 | Floating unloading type device for loosening blade on main shaft |
| CN102554672A (en) * | 2012-02-10 | 2012-07-11 | 上海三一精机有限公司 | Main shaft floating knife-loosing mechanism for vertical machining center |
| CN103419057A (en) * | 2013-08-28 | 2013-12-04 | 宁波海天精工股份有限公司 | Floating cutter loosening device for central water discharging spindle |
| CN105798679A (en) * | 2016-04-18 | 2016-07-27 | 扬州欧普兄弟机械工具有限公司 | Pneumatic tool changer of small milling and drilling machine |
-
2009
- 2009-12-18 CN CN2009202976658U patent/CN201586883U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102019559A (en) * | 2010-11-25 | 2011-04-20 | 成都普瑞斯数控机床有限公司 | Floating unloading type device for loosening blade on main shaft |
| CN102554672A (en) * | 2012-02-10 | 2012-07-11 | 上海三一精机有限公司 | Main shaft floating knife-loosing mechanism for vertical machining center |
| CN103419057A (en) * | 2013-08-28 | 2013-12-04 | 宁波海天精工股份有限公司 | Floating cutter loosening device for central water discharging spindle |
| CN105798679A (en) * | 2016-04-18 | 2016-07-27 | 扬州欧普兄弟机械工具有限公司 | Pneumatic tool changer of small milling and drilling machine |
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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: 20100922 Termination date: 20141218 |
|
| EXPY | Termination of patent right or utility model |