CN203664688U - Automatic cutter loosening and unloading structure of machine tool spindle - Google Patents
Automatic cutter loosening and unloading structure of machine tool spindle Download PDFInfo
- Publication number
- CN203664688U CN203664688U CN201320800835.6U CN201320800835U CN203664688U CN 203664688 U CN203664688 U CN 203664688U CN 201320800835 U CN201320800835 U CN 201320800835U CN 203664688 U CN203664688 U CN 203664688U
- Authority
- CN
- China
- Prior art keywords
- oil cylinder
- main shaft
- machine tool
- cutter
- cutter loosening
- 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
Links
Images
Landscapes
- Shearing Machines (AREA)
Abstract
The utility model relates to an automatic cutter loosening and unloading structure of a machine tool spindle. The automatic cutter loosening and unloading structure of the machine tool spindle is especially suitable for solving the problem that the accuracy of a pedestal bearing of the spindle is depleted by cutter loosening force in the cutter loosening process of a ram in the field of machine tools. The automatic cutter loosening and unloading structure of the machine tool spindle is mainly composed of an oil cylinder body, an oil cylinder piston, a baffle ring, a fixed ring and the like. The cutter loosening oil cylinder body is arranged on the machine tool spindle in an axially moving mode. The baffle ring is fixed to the spindle through the fixed ring. The oil cylinder body makes contact with the baffle ring. The oil cylinder piston makes contact with a cutter loosening rod assembling unit. A disengaging component enabling an oil cylinder to be disengaged from a spindle rotating part is arranged on the oil cylinder. According to the automatic cutter loosening and unloading structure of the machine tool spindle, the cutter loosening force only acts on the portion between the cutter loosening rod assembling unit and the baffle ring, and the cutter loosening force applied by the oil cylinder will not act on the pedestal bearing of the spindle, so the accuracy of the pedestal bearing of the spindle will not be depleted by the cutter loosening force, the reliability of the rotating accuracy of the machine tool spindle is improved, and the service life of the pedestal bearing of the ram spindle is longer.
Description
Affiliated field
The utility model relates to the automatic loose cutter unloading-structure of machine tool chief axis, is specially adapted to solve the loss problem of machine tool field ram pine cutter process pine cutter power to main shaft supporting bearing accuracy.
Background technology
Under lathe high efficiency trend, lathe is towards high-power, high rigidity cutting technology development.For example, for ram main shaft, want to realize to high-power, the high rigidity cutting of workpiece, the each link of main shaft cutting system all will have high rigidity.Wherein the contact stiffness of milling cutter taper shank and spindle taper hole is an important step of main shaft cutting system rigidity.In prior art in order to improve the contact stiffness of milling cutter taper shank and ram spindle taper hole, conventionally adopt the mode that increases milling cutter taper shank tightening force to realize, increase the pulling force of disk spring in main shaft pine tool-broaching mechanism, but along with main axle cutter tightening force increases, the contact stiffness of cutter and main shaft increases, and loose cutter power also can significantly increase thereupon.Structure and working method without off-load ram machine tool chief axis cutter-removing mechanism of the prior art is: loose knife oil cylinder cylinder body is fixed on ram part, when pine cutter, hydraulic oil passes into oil cylinder, promotion oil cylinder piston moves forward, drive loose knife bar sub-assembly to overcome disk-shaped spring elasticity cutter pulling claw is pushed into loose cutter station, complete loose cutter.But, this cutter-removing mechanism, the loose cutter power that oil cylinder applies can be applied on corresponding bearing by machine tool chief axis.Due to the frequent loose cutter of ram main shaft, loose cutter power will produce loss to the precision of main shaft supporting bearing, finally can have influence on machine tool chief axis running accuracy and precision stability.
Summary of the invention
The purpose of this utility model is for deficiency of the prior art and problem, the automatic loose cutter unloading-structure of a kind of machine tool chief axis is proposed, produced loose cutter power with solution ram main shaft knife loosening and can be produced loss to machine tool chief axis block bearing precision, and then solved the problem that affects main shaft running accuracy and precision stability because of loose cutter process.
The automatic loose cutter unloading-structure of the said machine tool chief axis of the utility model, is mainly made up of cylinder block, oil cylinder piston, baffle ring, retainer ring etc.Its frame mode is: loose knife oil cylinder cylinder body is placed on machine tool chief axis with axial manner, and baffle ring is fixed on main shaft by retainer ring, and cylinder block contacts with baffle ring, and oil cylinder piston contacts with loose knife bar sub-assembly; On cylinder block, be provided with the disengaged part that cylinder block and main shaft revolving part are thrown off, be provided with the disengaged part that another throws off oil cylinder piston and loose knife bar sub-assembly on oil cylinder piston, hydraulic circuit is connected with oil cylinder.When pine cutter, hydraulic oil passes into oil cylinder, and under the effect of oil pressure, cylinder block moves to backward with baffle ring and contacts, and oil cylinder piston moves forward, and drives loose knife bar sub-assembly to overcome disk-shaped spring elasticity, and cutter pulling claw is pushed into loose cutter station, completes loose cutter.
The said disengaged part that oil cylinder and main shaft revolving part are separated, refers to the spring that cylinder block and main shaft revolving part are thrown off arranging on cylinder block, and the spring that oil cylinder piston and loose knife bar sub-assembly are thrown off arranging on oil cylinder piston.(this disengaged part also can substitute with the parts of hydraulic pressure form).
Due to the automatic loose cutter unloading-structure of the said machine tool chief axis of the utility model, by machine tool chief axis is increased to automatic loose cutter unloading-structure device, its loose cutter power only acts between loose knife bar sub-assembly and baffle ring, form the stretching internal force of machine tool chief axis, the loose cutter power that oil cylinder applies can not be applied on main shaft supporting bearing, make main shaft supporting bearing pine cutter state not bear Song Daoli, therefore eliminate loose cutter power, the precision of machine tool chief axis block bearing is produced to loss, improve the reliability of machine tool chief axis running accuracy.
The automatic loose cutter unloading-structure device of the said main shaft of the utility model is installed in machine ram, can be eliminated the loss that loose cutter power produces the precision of machine tool chief axis block bearing, its effect is mainly manifested in following two aspects:
(1) ram main shaft supporting bearing accuracy retentivity is better, and the running accuracy retentivity of ram main shaft is better, has improved the reliability of machine ram main shaft.
(2) ram main shaft supporting bearing longer service life.
Accompanying drawing explanation
Fig. 1 is the ram main shaft knife loosening structure of prior art without unloading-structure;
Fig. 2 is the automatic loose cutter unloading-structure of machine tool chief axis of the present utility model.
The specific embodiment
By automatic said the utility model machine tool chief axis loose cutter unloading-structure, be example by being applied on vertical complex milling machine tool ram milling main shaft below, to the automatic loose cutter unloading-structure of the said machine tool chief axis of the utility model, and principle is further described.
In Fig. 1 and Fig. 2: 1, cylinder block; 2, oil cylinder piston; 3, loose knife bar sub-assembly; 4a, 4b, main shaft supporting bearing; 5, main shaft; 6, disk spring; 7, cutter pulling claw; 8, spindle taper hole; 9, milling cutter taper shank; 10, retainer ring; 11, baffle ring; 12a, 12b, disengaged part.
Fig. 1 is used in the prior art without off-load ram milling main shaft knife loosening structure.Wherein milling cutter taper shank 9 is important steps of main shaft 5 cutting system rigidity with the contact stiffness of spindle taper hole 8.In order to improve the contact stiffness of milling cutter taper shank 9 and ram spindle taper hole 8, adopt the mode that increases milling cutter taper shank 9 tightening forces to realize, its method is the pulling force that increases disk spring 6 in the loose tool-broaching mechanism of main shaft 5, along with main shaft 5 cutter tightening forces increase, milling cutter taper shank 9 increases with the contact stiffness of ram spindle taper hole 8, and loose cutter power also can increase thereupon.In Fig. 1, the frame mode without off-load ram main shaft knife loosening structure providing is: cylinder block 1 is fixed on ram axle sleeve, and oil cylinder piston 2 contacts with loose knife bar sub-assembly 3.Its working method is: when loose cutter, hydraulic oil passes into oil cylinder, promotes oil cylinder piston 2 and moves forward, and the loose cutter power that now oil cylinder applies is applied on main shaft supporting bearing 4a and 4b by main shaft 5 on the one hand; Act on the other hand on loose knife bar sub-assembly 3, and drive loose knife bar sub-assembly 3 to overcome disk spring 6 elastic force cutter pulling claw 7 to be pushed into loose cutter station, to complete loose cutter.
Fig. 2 is the automatic loose cutter unloading-structure of the said machine tool chief axis of the utility model, and provides the Application Example being combined in vertical complex milling machine tool ram.
The automatic loose cutter unloading-structure of said machine tool chief axis, is mainly made up of cylinder block 1, oil cylinder piston 2, baffle ring 11, retainer ring 10 etc.Its frame mode is: cylinder block 1 is placed on machine tool chief axis 5, axially unfixing; Baffle ring 11 is arranged in the groove of offering on main shaft 5, and is fixed on machine tool chief axis 5 by retainer ring 10; Cylinder block 1 contacts with baffle ring 11, and oil cylinder piston 2 contacts with loose knife bar sub-assembly 3; On cylinder block 1, be provided with the disengaged part 12a that cylinder block and main shaft revolving part are thrown off, on oil cylinder piston 2, be provided with the disengaged part 12b that oil cylinder piston 2 and loose knife bar sub-assembly 3 are thrown off.Further instruction, the said disengaged part 12a that cylinder block and main shaft revolving part are separated, and the disengaged part 12b that oil cylinder piston 2 and loose knife bar sub-assembly 3 are thrown off, both can be that both all adopt spring members to realize disengagement function, can be also that both all adopt the mode of hydraulic unit to realize disengagement function; Or in two disengaged part 12a, 12b, one of them adopts spring members, and another adopts hydraulic unit to make oil cylinder and main shaft revolving part throw off function.
When pine cutter, hydraulic oil passes into oil cylinder 1, and under the effect of oil pressure, cylinder block 1 moves to backward with baffle ring 11 and contacts, and oil cylinder piston 2 moves forward, and drives loose knife bar sub-assembly 3 to overcome disk spring 6 elastic force cutter pulling claw 7 is pushed into loose cutter station, completes loose cutter.
The automatic loose cutter unloading-structure of said machine tool chief axis in the utility model, its loose cutter power only acts between loose knife bar sub-assembly 3 and baffle ring 11, form the stretching internal force of main shaft 5, the loose cutter power that oil cylinder applies can not be applied to bearing 4a and bearing 4b is upper, therefore can not produce loss to the precision of main shaft supporting bearing 4a and 4b.In Fig. 2, on cylinder block 1 and oil cylinder piston 2 on the effect of two disengaged part 12a, 12b that arranges be to make oil cylinder and the disengagement of main shaft revolving part at broaching tool state.
The automatic loose cutter unloading-structure of said machine tool chief axis in the utility model, although only take vertical complex milling machine tool ram main shaft as example describes, be not limited on this lathe and use, to there is equally protection efficiency on the lathe of other types.That is to say that technical scheme disclosed in the utility model can also be applied on the lathe of similar cutter pine clamping structure and corresponding occasion.Be subject to equally protection and the restriction of the utility model patent.
Claims (6)
1. the automatic loose cutter unloading-structure of machine tool chief axis, formed by cylinder block, oil cylinder piston, baffle ring, retainer ring, disengaged part, it is characterized in that, loose knife oil cylinder cylinder body is placed on machine tool chief axis with axial manner, baffle ring is fixed on main shaft by retainer ring, cylinder block contacts with baffle ring, and oil cylinder piston contacts with loose knife bar sub-assembly; On cylinder block, be provided with the disengaged part that cylinder block and main shaft revolving part are thrown off, be provided with the disengaged part that another throws off oil cylinder piston and loose knife bar sub-assembly on oil cylinder piston, hydraulic circuit is connected with oil cylinder.
2. according to the automatic loose cutter unloading-structure of the said main shaft of claim 1, it is characterized in that, said disengaged part refers to, is provided with the spring that cylinder block and main shaft revolving part are thrown off on cylinder block.
3. according to the automatic loose cutter unloading-structure of the said main shaft of claim 1, it is characterized in that, said disengaged part refers to, is provided with the spring that oil cylinder piston and loose knife bar sub-assembly are thrown off on oil cylinder piston.
4. according to the automatic loose cutter unloading-structure of the said main shaft of claim 1, it is characterized in that, said disengaged part refers to, is provided with the hydraulic unit that cylinder block and main shaft revolving part are thrown off on cylinder block.
5. according to the automatic loose cutter unloading-structure of the said main shaft of claim 1, it is characterized in that, said disengaged part refers to, is provided with the hydraulic unit that oil cylinder piston and loose knife bar sub-assembly are thrown off on oil cylinder piston.
6. according to the automatic loose cutter unloading-structure of the said main shaft of claim 1, it is characterized in that, said baffle ring is arranged in the groove of offering on main shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320800835.6U CN203664688U (en) | 2013-12-06 | 2013-12-06 | Automatic cutter loosening and unloading structure of machine tool spindle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320800835.6U CN203664688U (en) | 2013-12-06 | 2013-12-06 | Automatic cutter loosening and unloading structure of machine tool spindle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203664688U true CN203664688U (en) | 2014-06-25 |
Family
ID=50961022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320800835.6U Expired - Fee Related CN203664688U (en) | 2013-12-06 | 2013-12-06 | Automatic cutter loosening and unloading structure of machine tool spindle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203664688U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104493604A (en) * | 2014-12-16 | 2015-04-08 | 宁波海天精工股份有限公司 | Double-piston spindle tool unclamping force removing oil cylinder |
| CN107803692A (en) * | 2017-11-06 | 2018-03-16 | 都匀东方机床有限公司 | Automatically machine tool main shaft nested inside formula structure is pulled loose |
| CN110524292A (en) * | 2019-07-25 | 2019-12-03 | 珠海格力电器股份有限公司 | A kind of pine knife power discharge mechanism and machining center |
-
2013
- 2013-12-06 CN CN201320800835.6U patent/CN203664688U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104493604A (en) * | 2014-12-16 | 2015-04-08 | 宁波海天精工股份有限公司 | Double-piston spindle tool unclamping force removing oil cylinder |
| CN107803692A (en) * | 2017-11-06 | 2018-03-16 | 都匀东方机床有限公司 | Automatically machine tool main shaft nested inside formula structure is pulled loose |
| CN110524292A (en) * | 2019-07-25 | 2019-12-03 | 珠海格力电器股份有限公司 | A kind of pine knife power discharge mechanism and machining center |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201988969U (en) | Fixture for hydraulic clamping vehicle for thin-walled parts | |
| CN203599537U (en) | High-speed electric ball spindle | |
| CN203664688U (en) | Automatic cutter loosening and unloading structure of machine tool spindle | |
| CN204639608U (en) | Full-automatic mechanical processing boring chamfering all-in-one | |
| CN103707090B (en) | Elastic locating mechanism | |
| CN204353523U (en) | The compound porous drilling machine of a kind of disc | |
| CN202377806U (en) | Shaft clamp | |
| CN201277216Y (en) | Internal-guiding grip oil cylinder | |
| CN105108181A (en) | Main shaft assembly of numerical control machine tool | |
| CN205147916U (en) | A pine clamp sword device that cold lathe main shaft in is used for | |
| CN201988751U (en) | Special drilling machine | |
| CN204294962U (en) | A kind of Novel chuck | |
| CN203265787U (en) | Band saw blade damping device | |
| CN201950506U (en) | Spindle cutter releasing and unloading mechanism | |
| CN203176288U (en) | Support structure for support end of ball screw | |
| CN201423546Y (en) | Manipulator clamping device of disc type tool magazine | |
| CN202239756U (en) | Improved special hole boring machine | |
| CN201862838U (en) | Extending milling head for machine tool | |
| CN103894856B (en) | Arc machining localization method installed by diesel engine single body pump | |
| CN205184349U (en) | A push up tight positioner that is used for gear shift pendulum rod wavy surface to process | |
| CN204565190U (en) | The device of clamping processing tubing inner bore of part | |
| CN203649436U (en) | Cutter for machining bearing | |
| CN204053627U (en) | Engine FE Tiler processing line overturn feed mechanism | |
| CN203809529U (en) | Automobile transmission shaft | |
| CN202952100U (en) | Horizontal type angle head |
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: 20140625 Termination date: 20211206 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |