CN104400511A - Clamping device for rotating table of numerical-control processing center - Google Patents
Clamping device for rotating table of numerical-control processing center Download PDFInfo
- Publication number
- CN104400511A CN104400511A CN201410581589.9A CN201410581589A CN104400511A CN 104400511 A CN104400511 A CN 104400511A CN 201410581589 A CN201410581589 A CN 201410581589A CN 104400511 A CN104400511 A CN 104400511A
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- China
- Prior art keywords
- conical surface
- clamping device
- numerical control
- lock shaft
- rotary table
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- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/08—Work-clamping means other than mechanically-actuated
- B23Q3/082—Work-clamping means other than mechanically-actuated hydraulically actuated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/0042—Devices for removing chips
- B23Q11/005—Devices for removing chips by blowing
Abstract
The invention discloses a clamping device for a rotating table of a numerical-control processing center. A driving mechanism is arranged on a rotating body; a clamping mechanism comprises a locking shaft, a connecting sleeve and a locking sleeve; the connecting sleeve is fixedly arranged at the bottom of the rotating table; one end of the locking shaft is fixedly arranged on the rotating table, and the other end of the locking shaft is connected with the driving mechanism; the locking sleeve sleeves the outer side of the other end of the locking shaft; the peripheral surface of the locking shaft is provided with a first conical surface; the inner peripheral surface of the upper end of the locking sleeve is provided with a second conical surface matched with the first conical surface, and the first conical surface and the second conical surface have the same inclination angle; the outer peripheral surface of the upper end of the locking sleeve is provided with a third conical surface; the inner peripheral surface of the connecting sleeve is provided with a fourth conical surface which is matched with the third conical surface, and the third conical surface and the fourth conical surface have the same inclination angle; a clearance exists between the third conical surface and the fourth conical surface. The clamping device has the characteristics of simple structure and convenience in installation, and can be used for effectively avoiding the problems of table deformation and position variation caused by pressure concentration and the processing precision of a machine tool is improved.
Description
Technical field
The present invention relates to the fastener of numerical control machining center rotary table, specifically a kind of clamping device of numerical control machining center rotary table.
Background technology
Numerical control machining center is as the important symbol of a measurement national science and technology development level, and be the focus that various countries fall over each other to study, the raising of its aspect such as operating efficiency, reliability, the competitive strength for enterprise self is particularly important always.Rotary table mainly comprises workbench and is arranged on the revolving body two parts below workbench, and clamping device is as the important component part of numerical control machining center rotary table, and the quality of its properity will directly affect reliability and the machining accuracy of lathe.
The clamping device of rotary table generally adopts machinery and hydraulic pressure two kinds of clamping modes, but along with the fast development of digital control system, the clamping mode of armstrong's patent gradually substitute by hydraulic clamp mode.At present, some adopt the clamping device of hydraulic clamp mode, and carry out clamping table by the radial direction locking of oil cylinder and clamping device, its oil cylinder and clamping device are often arranged in the centre bore of workbench.This radial clamp being positioned at workbench centre bore, can concentrate due to oil cylinder working-pressure and cause workbench center to be out of shape, workbench easily produces shift in position when unclamping or clamp simultaneously, affects machine finish.
Summary of the invention
Technical problem to be solved by this invention is: for the deficiencies in the prior art, a kind of clamping device of numerical control machining center rotary table is provided, this clamping device has structure feature simple, easy for installation, effectively can avoid the problem such as workbench distortion, shift in position caused because pressure concentrates, improve machine finish.
The present invention solves the problems of the technologies described above adopted technical scheme: a kind of clamping device of numerical control machining center rotary table, comprise clamp system and driving mechanism, described driving mechanism is arranged on described revolving body, described clamp system comprises lock shaft, adapter sleeve and lock sleeve, described adapter sleeve is fixed on the bottom of described workbench, one end of described lock shaft is fixing on the table, the other end of described lock shaft is connected with described driving mechanism, described lock sleeve is set in the outside of the other end of described lock shaft, described lock sleeve radial direction can swell and lock workbench, the outer peripheral face of described lock shaft is provided with first conical surface, the upper end inner peripheral surface of described lock sleeve is provided with second conical surface matched with the first described conical surface, the upper end outer peripheral face of described lock sleeve is provided with having three pyramidal faces, the inner peripheral surface of described adapter sleeve is provided with the 4th conical surface matched with described having three pyramidal faces, the first described conical surface is identical with the inclination angle of the second described conical surface, described having three pyramidal faces is identical with the inclination angle of the 4th described conical surface, between having three pyramidal faces described in when unclamping workbench and the 4th described conical surface, there is gap, during use, driving mechanism drives clamp system to move up and down, by coordinating of first conical surface and second conical surface and having three pyramidal faces and the 4th conical surface, realize clamp system to the clamping of workbench or unclamp.
When numerical control machining center is installed and used, between workbench and revolving body, evenly need assemble four covers clamping device of the present invention.When needing clamping table, driving mechanism drives lock shaft to move downward, first conical surface on lock shaft and the second taper-face contact on lock sleeve are also fitted, the downward active force in lock shaft direction passes to lock sleeve through first conical surface, make the radial distending of lock sleeve, the 4th taper-face contact on the having three pyramidal faces on lock sleeve and adapter sleeve is also fitted, lock sleeve by force transmission to adapter sleeve, realize the clamping to adapter sleeve by lock sleeve, and then realize the clamping to workbench; When needing to unclamp workbench, driving mechanism drives lock shaft to move upward, and lock sleeve radial direction tightens, and adapter sleeve is separated with lock sleeve, and workbench unclamps.
Preferably, described driving mechanism comprises piston axle and offers the cylinder cap of centre bore, described cylinder cap is fixed on described revolving body, one end of described piston axle is connected by screw through described centre bore and described lock shaft, the other end of described piston axle has been wholely set annular boss, annular oil cavity is provided with between described annular boss and described cylinder cap, described annular oil cavity is connected with the oil supplying hole be arranged on described revolving body, is provided with spring between described piston axle and described revolving body.During oil supplying hole fuel feeding on revolving body, hydraulic oil enters in annular oil cavity, produces pressure to piston axle, and piston axle moves downward and while Compress Spring, drives lock shaft to move downward; During oil supplying hole emptying on revolving body, piston axle is flicked by spring mechanical because lacking pressure, thus drives lock shaft to move upward.
Preferably, described lock sleeve comprises latch segment and is set in the elastic ring outside latch segment, the sidewall of described elastic ring offers breach, described elastic ring disconnects from described indentation, there, described latch segment is made up of the multi-disc stay of filling the span of a man's arms on described lock shaft, the inner side of the upper end of the stay described in every sheet is provided with the first inclined-plane, namely the first inclined-plane on described multi-disc stay surrounds the second described conical surface, and the clearance gap such as described multi-disc stay are arranged on the outside of described lock shaft.Latch segment is the petal type structure be made up of multi-disc stay, can realize the Quick-clamped of workbench and unclamp, and dismounting is easy to maintenance.
Preferably, the inner side of the bottom of the stay described in every sheet is provided with the second inclined-plane, the second inclined-plane on described multi-disc stay surrounds the 5th conical surface, the bottom periphery face of described lock shaft is provided with the 6th conical surface matched with the 5th described conical surface, the 5th described conical surface and the 6th described conical surface fit.The design of the 5th conical surface and the 6th conical surface with coordinate, the contact area of lock shaft and lock sleeve can be increased, the lifting surface area of lock sleeve is increased, be conducive to the speed, stability and the reliability that improve worktable clamping and unclamp action.
Preferably, the arranged outside of the bottom of the stay described in every sheet has convex eaves, and the top of described cylinder cap is provided with annular groove, and the external diameter of described annular groove is greater than the external diameter of the bottom of described latch segment, when lock sleeve radial direction swells, described convex eaves reaches in described annular groove.Annular groove can realize the better location to lock sleeve, improves worktable clamping or unclamps the reliability of action.
Preferably, this clamping device also comprises source of the gas path, and described source of the gas path is made up of the first passage be connected and the second passage, and the first described passage is arranged in described lock shaft, and the second described passage is arranged in described piston axle.When workbench unclamps, blow in clamping device by source of the gas path, the foreign material such as iron filings, fluid are blown out, easy to use, play the object of clean lathe.
Preferably, described source of the gas path is provided with pressure switch.During clamping table, blow in clamping device through source of the gas path, the signal detection provided by pressure switch also judges whether workbench clamps and puts in place, improves the safety and reliability of device further.
Preferably, the inclination angle of the first described conical surface is greater than the inclination angle of described having three pyramidal faces.The inclination angle of first conical surface is greater than the inclination angle of having three pyramidal faces, can make finally to be delivered to the pressure increase on adapter sleeve, increases the clamping force to workbench, thus can reduce the quantity delivered of hydraulic oil, reach energy-conservation object.
Preferably, the inclination angle of the first described conical surface is 15 ~ 75 °, and the inclination angle of described having three pyramidal faces is 10 ~ 70 °.
Preferably, the inclination angle of the first described conical surface is 45 °, and the inclination angle of described having three pyramidal faces is 30 °.Suppose to be N sized by the pressure that hydraulic oil produces piston axle, when the inclination angle of first conical surface be 45 °, the inclination angle of having three pyramidal faces be 30 ° time, the pressure increase be finally delivered on adapter sleeve is
n, realizes the clamping to workbench, and such inclination angle design processing is got up more convenient.
Compared with prior art, the invention has the advantages that: the clamping device of numerical control machining center rotary table disclosed by the invention have simple and compact for structure, cost is low, be convenient to the features such as the manufacturing, the Quick-clamped of workbench can be realized and unclamp, effectively can avoid the problem such as workbench distortion, shift in position caused because pressure concentrates, reliability and the automaticity of complete machine can be improved, also being convenient to the work such as follow-up installation, debugging and maintenance simultaneously, providing an effective way for realizing green energy conservation lathe.
Accompanying drawing explanation
Fig. 1 is the workbench releasing orientation schematic diagram after installing embodiment clamping device;
Fig. 2 is the worktable clamping view after installing embodiment clamping device;
Fig. 3 is the top view of the workbench after installing embodiment clamping device;
Fig. 4 is the outside drawing of lock sleeve in embodiment clamping device.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail.
As shown in the figure, a kind of clamping device of numerical control machining center rotary table, comprises clamp system, driving mechanism and source of the gas path, and driving mechanism is arranged on revolving body 8, clamp system comprises lock shaft 1, adapter sleeve 2 and lock sleeve 3, adapter sleeve 2 is fixed on the bottom of workbench 7 by screw 22, one end of lock shaft 1 is fixing on the table 7, lock sleeve 3 is set in the outside of the other end of lock shaft 1, lock sleeve 3 radial direction can swell and lock workbench 7, the outer peripheral face of lock shaft 1 is provided with first conical surface 11, the upper end inner peripheral surface of lock sleeve 3 is provided with second conical surface 31 matched with first conical surface 11, the upper end outer peripheral face of lock sleeve 3 is provided with having three pyramidal faces 32, the inner peripheral surface of adapter sleeve 2 is provided with the 4th conical surface 21 matched with having three pyramidal faces 32, the inclination alpha of first conical surface 11 and second conical surface 31 is 45 °, the angle of inclination beta of having three pyramidal faces 32 and the 4th conical surface 21 is 30 °, between having three pyramidal faces 32 and the 4th conical surface 21, there is gap when unclamping workbench, driving mechanism comprises piston axle 4 and offers the cylinder cap 5 of centre bore 51, cylinder cap 5 is fixed on revolving body 8 by screw 54, one end of piston axle 4 is connected by screw 12 with lock shaft 1 through centre bore 51, the other end of piston axle 4 has been wholely set annular boss 41, annular oil cavity 52 is provided with between annular boss 41 and cylinder cap 5, annular oil cavity 52 is connected with the oil supplying hole 81 be arranged on revolving body 8, piston axle 4 and be all provided with sealing ring 42 between cylinder cap 5 and revolving body 8, is provided with spring 6 between piston axle 4 and revolving body 8, source of the gas path is made up of the first passage 72 be connected and the second passage 72, and the first passage 72 is arranged in lock shaft 1, and the second passage 72 is arranged in piston axle 4, source of the gas path is provided with pressure switch (not shown).
The elastic ring 34 that lock sleeve 3 comprises latch segment 33 and is set in outside latch segment 33, the sidewall of elastic ring 34 offers breach 35, elastic ring 34 disconnects from breach 35 place, latch segment 33 is made up of five staies 36 of filling the span of a man's arms on lock shaft 2, the inner side of the upper end of every sheet stay 36 is provided with the first inclined-plane 361, namely the first inclined-plane 361 on five staies 36 surrounds the outside that the clearance gap such as second conical surface, 31, five staies 36 are arranged on lock shaft 1.
The inner side of the bottom of every sheet stay 36 is provided with the second inclined-plane 362, the second inclined-plane 362 on five staies 36 surrounds the 5th conical surface 37, the bottom periphery face of lock shaft 1 is provided with the 6th conical surface the 38, five conical surface 37 that matches with the 5th conical surface 37 and the 6th conical surface 38 fits; The arranged outside of the bottom of every sheet stay 36 has convex eaves 363, and the top of cylinder cap 5 is provided with annular groove 53, and the external diameter of annular groove 53 is greater than the external diameter of the bottom of latch segment 33, and when lock sleeve 3 radial direction swells, convex eaves 363 reaches in annular groove 53.
When numerical control machining center is installed and used, need evenly assembling four overlap above-mentioned clamping device between workbench 7 and revolving body 8, as shown in Figure 4.When needing clamping table 7, oil supplying hole 81 fuel feeding on revolving body 8, hydraulic oil enters in annular oil cavity 52, pressure is produced to piston axle 4, piston axle 4 move downward and Compress Spring 6 while, lock shaft 1 is driven to move downward, first conical surface 11 on lock shaft 1 contacts with second conical surface 31 on lock sleeve 3 and fits, the downward active force in lock shaft 1 direction passes to lock sleeve 3 through first conical surface 11, make the radial distending of lock sleeve 3, five convex eaves 363 all reach in annular groove 53, having three pyramidal faces 32 on lock sleeve 3 contacts with the 4th conical surface 21 on adapter sleeve 2 and fits, lock sleeve 3 by force transmission to adapter sleeve 2, the clamping to adapter sleeve 2 is realized by lock sleeve 3, and then the clamping realized workbench 7, while clamping table 7, blow in clamping device through source of the gas path, the signal detection provided by pressure switch also judges whether workbench 7 clamps and puts in place, when needing to unclamp workbench 7, oil supplying hole 81 emptying on revolving body 8, piston axle 4 is flicked by spring 6 machinery because lacking pressure, thus drive lock shaft 1 to move upward, lock sleeve 3 radial direction tightens, and five convex eaves 363 leave annular groove 53, and adapter sleeve 2 is separated with lock sleeve 3, workbench 7 unclamps, when workbench 7 unclamps, blow in clamping device by source of the gas path, the foreign material such as iron filings, fluid are blown out, easy to use, play the object of clean lathe.
Claims (10)
1. the clamping device of a numerical control machining center rotary table, comprise clamp system and driving mechanism, it is characterized in that described driving mechanism is arranged on described revolving body, described clamp system comprises lock shaft, adapter sleeve and lock sleeve, described adapter sleeve is fixed on the bottom of described workbench, one end of described lock shaft is fixing on the table, the other end of described lock shaft is connected with described driving mechanism, described lock sleeve is set in the outside of the other end of described lock shaft, described lock sleeve radial direction can swell and lock workbench, the outer peripheral face of described lock shaft is provided with first conical surface, the upper end inner peripheral surface of described lock sleeve is provided with second conical surface matched with the first described conical surface, the upper end outer peripheral face of described lock sleeve is provided with having three pyramidal faces, the inner peripheral surface of described adapter sleeve is provided with the 4th conical surface matched with described having three pyramidal faces, the first described conical surface is identical with the inclination angle of the second described conical surface, described having three pyramidal faces is identical with the inclination angle of the 4th described conical surface, between having three pyramidal faces described in when unclamping workbench and the 4th described conical surface, there is gap, during use, driving mechanism drives clamp system to move up and down, by coordinating of first conical surface and second conical surface and having three pyramidal faces and the 4th conical surface, realize clamp system to the clamping of workbench or unclamp.
2. the clamping device of a kind of numerical control machining center rotary table according to claim 1, it is characterized in that described driving mechanism comprises piston axle and offers the cylinder cap of centre bore, described cylinder cap is fixed on described revolving body, one end of described piston axle is connected by screw through described centre bore and described lock shaft, the other end of described piston axle has been wholely set annular boss, annular oil cavity is provided with between described annular boss and described cylinder cap, described annular oil cavity is connected with the oil supplying hole be arranged on described revolving body, between described piston axle and described revolving body, spring is installed.
3. the clamping device of a kind of numerical control machining center rotary table according to claim 2, it is characterized in that described lock sleeve comprises latch segment and is set in the elastic ring outside latch segment, the sidewall of described elastic ring offers breach, described elastic ring disconnects from described indentation, there, described latch segment is made up of the multi-disc stay of filling the span of a man's arms on described lock shaft, the inner side of the upper end of the stay described in every sheet is provided with the first inclined-plane, namely the first inclined-plane on described multi-disc stay surrounds the second described conical surface, the clearance gap such as described multi-disc stay are arranged on the outside of described lock shaft.
4. the clamping device of a kind of numerical control machining center rotary table according to claim 3, it is characterized in that the inner side of the bottom of the stay described in every sheet is provided with the second inclined-plane, the second inclined-plane on described multi-disc stay surrounds the 5th conical surface, the bottom periphery face of described lock shaft is provided with the 6th conical surface matched with the 5th described conical surface, the 5th described conical surface and the 6th described conical surface fit.
5. the clamping device of a kind of numerical control machining center rotary table according to Claims 2 or 3, it is characterized in that the arranged outside of the bottom of the stay described in every sheet has convex eaves, the top of described cylinder cap is provided with annular groove, the external diameter of described annular groove is greater than the external diameter of the bottom of described latch segment, when lock sleeve radial direction swells, described convex eaves reaches in described annular groove.
6. the clamping device of a kind of numerical control machining center rotary table according to Claims 2 or 3 or 4, characterized by further comprising source of the gas path, described source of the gas path is made up of the first passage be connected and the second passage, the first described passage is arranged in described lock shaft, and the second described passage is arranged in described piston axle.
7. the clamping device of a kind of numerical control machining center rotary table according to claim 6, is characterized in that described source of the gas path is provided with pressure switch.
8. the clamping device of a kind of numerical control machining center rotary table according to claim 1, is characterized in that the inclination angle of the first described conical surface is greater than the inclination angle of described having three pyramidal faces.
9. the clamping device of a kind of numerical control machining center rotary table according to claim 8, it is characterized in that the inclination angle of the first described conical surface is 15 ~ 75 °, the inclination angle of described having three pyramidal faces is 10 ~ 70 °.
10. the clamping device of a kind of numerical control machining center rotary table according to claim 9, it is characterized in that the inclination angle of the first described conical surface is 45 °, the inclination angle of described having three pyramidal faces is 30 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410581589.9A CN104400511B (en) | 2014-10-27 | 2014-10-27 | A kind of clamping device of numerical control machining center rotary table |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410581589.9A CN104400511B (en) | 2014-10-27 | 2014-10-27 | A kind of clamping device of numerical control machining center rotary table |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104400511A true CN104400511A (en) | 2015-03-11 |
| CN104400511B CN104400511B (en) | 2016-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410581589.9A Active CN104400511B (en) | 2014-10-27 | 2014-10-27 | A kind of clamping device of numerical control machining center rotary table |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105058111A (en) * | 2015-07-31 | 2015-11-18 | 重庆市兴林电器有限公司 | Locking mechanism for machining outer teeth of rib pipe |
| CN105171443A (en) * | 2015-09-16 | 2015-12-23 | 山东永华机械有限公司 | Rotary working table tight braking device of numerical control machine tool |
| CN107775409A (en) * | 2017-12-07 | 2018-03-09 | 厦门彬锐数控科技有限公司 | A kind of rotating hydraulic vice |
| CN108655438A (en) * | 2017-03-27 | 2018-10-16 | 江苏持华轴承有限公司 | A kind of conical ring clamping device and milling machine |
| CN109128875A (en) * | 2018-11-20 | 2019-01-04 | 宝鸡虢西磨棱机制造有限公司 | A kind of high-precision rotary working-table |
-
2014
- 2014-10-27 CN CN201410581589.9A patent/CN104400511B/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105058111A (en) * | 2015-07-31 | 2015-11-18 | 重庆市兴林电器有限公司 | Locking mechanism for machining outer teeth of rib pipe |
| CN105171443A (en) * | 2015-09-16 | 2015-12-23 | 山东永华机械有限公司 | Rotary working table tight braking device of numerical control machine tool |
| CN108655438A (en) * | 2017-03-27 | 2018-10-16 | 江苏持华轴承有限公司 | A kind of conical ring clamping device and milling machine |
| CN107775409A (en) * | 2017-12-07 | 2018-03-09 | 厦门彬锐数控科技有限公司 | A kind of rotating hydraulic vice |
| CN109128875A (en) * | 2018-11-20 | 2019-01-04 | 宝鸡虢西磨棱机制造有限公司 | A kind of high-precision rotary working-table |
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| Publication number | Publication date |
|---|---|
| CN104400511B (en) | 2016-08-24 |
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