CN103212994A - Machine tool with gantry structure - Google Patents
Machine tool with gantry structure Download PDFInfo
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- CN103212994A CN103212994A CN2012100157668A CN201210015766A CN103212994A CN 103212994 A CN103212994 A CN 103212994A CN 2012100157668 A CN2012100157668 A CN 2012100157668A CN 201210015766 A CN201210015766 A CN 201210015766A CN 103212994 A CN103212994 A CN 103212994A
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- crossbeam
- slide rail
- length direction
- cross beam
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Abstract
The invention relates to a machine tool with a gantry structure. The machine tool with the gantry structure comprises a base, a cross beam, a left column, a right column and expansion joints, wherein each expansion joint is of a slide rail structure, and one end of the cross beam is fixedly connected; and the other end of the cross beam is flexibly connected, and the cross beam is connected with the columns through slide rails along the length direction of the cross beam. When the cross beam is heated to expand, a slipway of each slide rail slides relative to each slide rail along the length direction of the cross beam to absorb the amount of deformation caused by expansion of the cross beam; and when the cross beam contracts, the slide rails restore to the original position. The technical scheme better solves the problem and can be used in industrial production of the machine tool with the gantry structure.
Description
Technical field
The present invention relates to a kind of gantry structure lathe, particularly contain the gantry structure lathe of rail structure.
Background technology
In the gantry structure lathe, crossbeam is high-precision structural member.The lathe size of gantry structure is bigger usually, and adopts metal material to make.Conventional engineering material all has the problem of expanded by heating distortion, as the typical steel heat coefficient of expansion is 10 * 10-6m/m* ℃, the coefficient of expansion of aluminium alloy is 22 * 10-6m/m* ℃, under the condition of 1 degree centigrade of the every rising of temperature, 1 meter long steel crossbeam expands 10 microns, and 1 meter long aluminium alloy crossbeam expands 22 microns.Crossbeam expands must cause corresponding stress deformation problem, causes the structural member precision to change or the way rub aggravation, and the life-span descends.
Chinese patent CN101181776 discloses a kind of moving beam type gantry machine tool compound structural cross beam, comprise that cross sectional shape is square inner and outer wall, between inner and outer wall, be furnished with the waveform reinforcement, total can be welded by steel plate, also but monoblock cast forms, and inserts C30 concrete and swelling agent mixt in the space of inside and outside wall and reinforcement.In order to increase the damping of crossbeam, improve the dynamic property of crossbeam, the present invention inserts the C30 concrete in the space of the formation of inwall, outer wall and waveform reinforcement, in order to prevent concrete cracking, and concrete and inside and outside wall and reinforcement are combined closely, in concrete, add swelling agent.
Chinese patent CN201857337U discloses the big cover steel construction of a kind of molten tin bath temperature-rise period swelling heat Deformation Control device, it is characterized in that control device comprises the parts that a plurality of structures are identical; A plurality of described parts are that axial symmetry is loaded on the outside of the big cover steel construction of molten tin bath gate-type two body side frame bottoms and along the setting of molten tin bath longitudinal separation with the molten tin bath longitudinal centre line.The upper surface of one end of described parts and molten tin bath bottom steel crossbeam is affixed, and the bottom of the big cover steel construction of the molten tin bath gate-type body side frame of the other end and a relative side with it touches.The outside lateral thrust that the swelling heat distortion that big cover steel construction causes because of its design feature and internal-external temperature difference in temperature-rise period is produced is subjected to the inhibition of the reaction force of a plurality of parts of contact with big cover steel construction, covers the outside dilatancy in lower end greatly thereby stop effectively; Can guarantee that the refractory material that covers the steel construction liner greatly is not subjected to steel construction to be out of shape the infringement that is brought.
The invention provides a kind of crossbeam expansion joints, be applicable to the gantry structure lathe, solve the stress deformation problem that the lathe crossbeam expands and causes based on rail structure.
Summary of the invention
Technical problem to be solved by this invention is the corresponding stress deformation of Longmen machine tool crossbeam expansion causing in the prior art, cause the structural member precision to change or the way rub aggravation, the problem that the lathe life-span descends, a kind of new gantry structure lathe is provided, and this lathe has the advantage that can absorb the stress deformation that the crossbeam expanded by heating causes.
For solving the problems of the technologies described above, the technical solution used in the present invention is as follows: a kind of gantry structure lathe, comprise pedestal, crossbeam, left column, right column, expansion joints, affiliated expansion joints is a rail structure, described crossbeam one end is fixedly connected, one end is for flexibly connecting, be connected by slide rail between described crossbeam and the column along the crossbeam length direction, when the crossbeam expanded by heating, the slide unit of slide rail and the relative slip of guide rail generation along the crossbeam length direction absorb the deformation quantity that crossbeam expands and causes, when crossbeam shrank, slide rail returned to the origin-location.
In the technique scheme, described Longmen machine tool crossbeam flexibly connects end and is the flexible hinge structure; Described crossbeam is higher than along the rigidity of structure of crossbeam length direction along the rigidity of structure perpendicular to the crossbeam length direction; When described crossbeam expansion or contraction, crossbeam is stable along vertical crossbeam direction; During described crossbeam expanded by heating, slide rail absorbs the deformation quantity that crossbeam expands and causes along the relative slip of crossbeam length direction; When described crossbeam shrank, slide rail returned to the origin-location.
Technical scheme of the present invention, Longmen machine tool has the crossbeam expansion joints based on rail structure, when the crossbeam expanded by heating, relative slip along the crossbeam length direction takes place in slide rail, absorb the deformation quantity that crossbeam expands and causes, and the structure of vertical crossbeam direction is higher because of rigidity, can keep the original relative position of crossbeam; When crossbeam shrank, slide rail returned to the origin-location, and crossbeam shrinks back initial position and do not cause that or not loosening of structure, protection crossbeam reach relevant johning knot member, kept the quality of fit of crossbeam.The present invention solves the stress deformation problem that the thermal expansion of Longmen machine tool crossbeam causes, is used for the gantry structure lathe, has obtained better technical effect.
Description of drawings
Fig. 1 is the fixedly schematic diagram of gantry structure crossbeam.
Fig. 2 is the rail structure schematic diagram.
Fig. 3 is the expansion joints schematic diagram of rail structure.
Fig. 4 absorbs the deformation schematic diagram that crossbeam expands and causes for slide rail takes place to slide relatively.
Among Fig. 1,1 is left column; 2 is right column; 3 is crossbeam; 4 is base station.
Among Fig. 2,4,1 is slide unit; 2 are A1-A4 connection column; 3 is steel ball; 4 is slide rail; 5 are B1-B4 connection crossbeam.
Among Fig. 3,1 is the flexible structure slide rail.
The present invention is further elaborated below by embodiment.
The specific embodiment
[embodiment 1]
A kind of gantry structure lathe as shown in Figure 1, comprises pedestal, crossbeam, left column, right column, expansion joints, affiliated expansion joints is a rail structure, and described crossbeam one end is fixedly connected, and an end is for flexibly connecting, be connected by slide rail between described crossbeam and the column along the crossbeam length direction, when the crossbeam expanded by heating, the slide unit of slide rail and the relative slip of guide rail generation along the crossbeam length direction absorb the deformation quantity that crossbeam expands and causes, when crossbeam shrank, slide rail returned to the origin-location.
Among Fig. 1,1 is left column; 2 is right column; 3 is crossbeam; 4 is base station.
[embodiment 2]
A kind of gantry structure lathe, comprise pedestal, crossbeam, left column, right column, expansion joints, affiliated expansion joints are rail structure, described crossbeam one end is fixedly connected, one end is for flexibly connecting, and is connected by the slide rail along the crossbeam length direction between described crossbeam and the column, when the crossbeam expanded by heating, the slide unit of slide rail and the relative slip of guide rail generation along the crossbeam length direction, absorb the deformation quantity that crossbeam expands and causes, when crossbeam shrank, slide rail returned to the origin-location.
The described end that flexibly connects is the flexible hinge structure, and described crossbeam is higher than along the rigidity of structure of crossbeam length direction along the rigidity of structure perpendicular to the crossbeam length direction, and when crossbeam expansion or contraction, crossbeam is stable along vertical crossbeam direction; During described crossbeam contraction or expansion, the quality of fit of crossbeam is constant.
[embodiment 3]
A kind of gantry structure lathe, comprise pedestal, crossbeam, left column, right column, expansion joints, expansion joints is the crossbeam expansion joints that contains based on rail structure, as Fig. 2,3, shown in 4, crossbeam expansion joints based on rail structure, described crossbeam one end is fixedly connected, one end is for flexibly connecting, and is connected by the slide rail along the crossbeam length direction between described crossbeam and the column, when the crossbeam expanded by heating, the slide unit of slide rail and the relative slip of guide rail generation along the crossbeam length direction, absorb the deformation quantity that crossbeam expands and causes, when crossbeam shrank, slide rail returned to the origin-location.Among Fig. 2 and Fig. 4,1 is slide unit; 2 are A1-A4 connection column; 3 is steel ball; 4 is slide rail; 5 are B1-B4 connection crossbeam.Among Fig. 3,1 is the flexible structure slide rail.
[embodiment 4]
A kind of gantry structure lathe, comprise pedestal, crossbeam, left column, right column, expansion joints, expansion joints is the crossbeam expansion joints that contains based on rail structure, described crossbeam one end is fixedly connected, one end is for flexibly connecting, be connected by slide rail between described crossbeam and the column along the crossbeam length direction, when the crossbeam expanded by heating, the slide unit of slide rail and the relative slip of guide rail generation along the crossbeam length direction, absorb the deformation quantity that crossbeam expands and causes, when crossbeam shrank, slide rail returned to the origin-location.
The described end that flexibly connects is the flexible hinge structure, and described crossbeam is higher than along the rigidity of structure of crossbeam length direction along the rigidity of structure perpendicular to the crossbeam length direction, and when crossbeam expansion or contraction, crossbeam is stable along vertical crossbeam direction; During described crossbeam contraction or expansion, the quality of fit of crossbeam is constant.
Claims (5)
1. gantry structure lathe, comprise pedestal, crossbeam, left column, right column, expansion joints, affiliated expansion joints are rail structure, described crossbeam one end is fixedly connected, one end is for flexibly connecting, and is connected by the slide rail along the crossbeam length direction between described crossbeam and the column, when the crossbeam expanded by heating, the slide unit of slide rail and the relative slip of guide rail generation along the crossbeam length direction, absorb the deformation quantity that crossbeam expands and causes, when crossbeam shrank, slide rail returned to the origin-location.
2. gantry structure lathe according to claim 1 is characterized in that the described end that flexibly connects adopts the flexible hinge structure.
3. gantry structure lathe according to claim 1 is characterized in that described crossbeam is higher than along the rigidity of structure of crossbeam length direction along the rigidity of structure perpendicular to the crossbeam length direction.
4. gantry structure lathe according to claim 1, when it is characterized in that described crossbeam expansion or contraction, crossbeam is stable along vertical crossbeam direction.
5. gantry structure lathe according to claim 1, when it is characterized in that described crossbeam contraction or expansion, the quality of fit of crossbeam is constant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100157668A CN103212994A (en) | 2012-01-19 | 2012-01-19 | Machine tool with gantry structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100157668A CN103212994A (en) | 2012-01-19 | 2012-01-19 | Machine tool with gantry structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103212994A true CN103212994A (en) | 2013-07-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100157668A Pending CN103212994A (en) | 2012-01-19 | 2012-01-19 | Machine tool with gantry structure |
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| Country | Link |
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| CN (1) | CN103212994A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112589474A (en) * | 2020-12-11 | 2021-04-02 | 彭州东硕数控设备有限公司 | Thermal expansion machine tool precision retaining device |
| CN115402015A (en) * | 2022-10-31 | 2022-11-29 | 广东工业大学 | Flexible connection joint system for self-eliminating thermal distortion of gantry system |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003260623A (en) * | 2002-03-08 | 2003-09-16 | Nakamura Tome Precision Ind Co Ltd | Vibration-isolating device of straight guide device |
| EP1072353B1 (en) * | 1999-07-27 | 2005-05-04 | Promotec S.r.l. | Metal plate cutting machine |
| US20090194497A1 (en) * | 2008-02-03 | 2009-08-06 | Cheng-Feng Lin | Gantry with a Buffering Structure |
| CN101537728A (en) * | 2009-03-06 | 2009-09-23 | 梁力生 | Translational sliding printing oblique bedplate and special printing net rack |
| CN201385186Y (en) * | 2009-03-24 | 2010-01-20 | 梅塞尔切割焊接(中国)有限公司 | Bridging beam supporting device of laser cutting machine |
| CN201552442U (en) * | 2009-10-30 | 2010-08-18 | 宋玉玲 | Novel processing center |
| CN202607234U (en) * | 2012-01-19 | 2012-12-19 | 昆山思拓机器有限公司 | Machine tool with gantry structure |
-
2012
- 2012-01-19 CN CN2012100157668A patent/CN103212994A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1072353B1 (en) * | 1999-07-27 | 2005-05-04 | Promotec S.r.l. | Metal plate cutting machine |
| JP2003260623A (en) * | 2002-03-08 | 2003-09-16 | Nakamura Tome Precision Ind Co Ltd | Vibration-isolating device of straight guide device |
| US20090194497A1 (en) * | 2008-02-03 | 2009-08-06 | Cheng-Feng Lin | Gantry with a Buffering Structure |
| CN101537728A (en) * | 2009-03-06 | 2009-09-23 | 梁力生 | Translational sliding printing oblique bedplate and special printing net rack |
| CN201385186Y (en) * | 2009-03-24 | 2010-01-20 | 梅塞尔切割焊接(中国)有限公司 | Bridging beam supporting device of laser cutting machine |
| CN201552442U (en) * | 2009-10-30 | 2010-08-18 | 宋玉玲 | Novel processing center |
| CN202607234U (en) * | 2012-01-19 | 2012-12-19 | 昆山思拓机器有限公司 | Machine tool with gantry structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112589474A (en) * | 2020-12-11 | 2021-04-02 | 彭州东硕数控设备有限公司 | Thermal expansion machine tool precision retaining device |
| CN115402015A (en) * | 2022-10-31 | 2022-11-29 | 广东工业大学 | Flexible connection joint system for self-eliminating thermal distortion of gantry system |
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Application publication date: 20130724 |