CN103212995A - Machine tool with gantry structure - Google Patents
Machine tool with gantry structure Download PDFInfo
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- CN103212995A CN103212995A CN2012100159555A CN201210015955A CN103212995A CN 103212995 A CN103212995 A CN 103212995A CN 2012100159555 A CN2012100159555 A CN 2012100159555A CN 201210015955 A CN201210015955 A CN 201210015955A CN 103212995 A CN103212995 A CN 103212995A
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- crossbeam
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- contraction
- dovetail groove
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Abstract
The invention relates to a machine tool with a gantry structure, and mainly solves the stress deformation problem caused by thermal expansion of a cross beam of the machine tool in the prior art. The machine tool with the gantry structure comprises cross beam expansion joints containing dovetail groove structures. One end of a cross beam is fixedly connected, and the other end of the cross beam is flexibly connected. When the cross beam contracts or expands along the parallel direction of the cross beam, dovetail grooves relatively move along the parallel direction of the cross beam to absorb the amount of deformation caused by contraction or expansion of the cross beam. The technical scheme better solves the problem and can be used in the 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 the crossbeam expansion joints of oat tail groove 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.For head it off, a kind of crossbeam expansion joints based on oat tail groove structure is proposed.
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 oat tail groove 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 the crossbeam expansion joints of this gantry structure lathe has the advantage that can absorb the stress deformation that the crossbeam expanded by heating causes.
Two of technical problem to be solved by this invention provides a kind of Longmen machine tool with the oat tail groove structure that one of solves the problems of the technologies described above.
For one of 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, affiliated crossbeam has expansion joints, described bloated joint is an oat tail groove structure, described oat tail groove structure is connected the end of crossbeam, this beam-ends flexibly connects, the other end is fixedly connected, described crossbeam is along crossbeam parallel direction contraction or expansion the time, the dovetail groove generation relatively moves along the crossbeam parallel direction, absorbs the deformation quantity that the crossbeam contraction or expansion causes.
Crossbeam expansion joints based on oat tail groove structure, described bloated joint is an oat tail groove structure, described oat tail groove structure is connected the end of crossbeam, this beam-ends flexibly connects, the other end is fixedly connected, described crossbeam is along crossbeam parallel direction contraction or expansion the time, and the dovetail groove generation relatively moves along the crossbeam parallel direction, absorbs the deformation quantity that the crossbeam contraction or expansion causes.
In the technique scheme, the described end that flexibly connects adopts 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, the relative slip along the crossbeam length direction takes place in dovetail groove, absorbs the deformation quantity that crossbeam expands and causes.When described crossbeam shrank, dovetail groove returned to the origin-location.
In the technique scheme, described Longmen machine tool crossbeam flexibly connects end and adopts 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, the relative slip along the crossbeam length direction takes place in dovetail groove, absorbs the deformation quantity that crossbeam expands and causes; When described crossbeam shrank, dovetail groove returned to the origin-location.
Two kinds of different fixed forms are adopted at the crossbeam two ends, and an end is fixedly connected, and an end is for flexibly connecting.Flexibly connect end and adopt the flexible hinge structure.The characteristics of this fixed form are along very high perpendicular to the rigidity of structure of crossbeam length direction, and are lower along the rigidity of structure of crossbeam length direction.
Technical scheme of the present invention, crossbeam expansion joints based on oat tail groove structure, when the crossbeam expanded by heating, relative slip along the crossbeam length direction takes place in dovetail groove, 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, dovetail groove 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 crossbeam thermal expansion causes, is used for the gantry structure lathe, has obtained better technical effect.
Description of drawings
Fig. 1 is the fixing of gantry structure crossbeam.
Fig. 2 is the oat tail groove structure schematic diagram.
Fig. 3 is the dovetail groove cross-sectional view.
Fig. 4 is the fixing profile of dovetail groove of Longmen machine tool.
Fig. 5 is the dovetail groove standing part amplification profile of Longmen machine tool.
Among Fig. 1,1 is pedestal, and 2 is crossbeam, and 3 is left column, and 4 is right column, and 5 is dovetail groove.
Among Fig. 2,1 is crossbeam, and 2 is dovetail groove; 3 is the dovetail part; 4 is the relative slipper of dovetail groove.
Among Fig. 3,1 is crossbeam, and 2 is dovetail groove; 3 is the dovetail part; 4 is the relative slipper of dovetail groove.
Among Fig. 4,1 is pedestal, and 2 is crossbeam, and 3 is left column, and 4 is right column, and 5 is dovetail groove.
The present invention is further elaborated below by embodiment.
The specific embodiment
[embodiment 1]
A kind of gantry structure lathe, comprise pedestal, crossbeam, left column, right column, affiliated crossbeam has expansion joints, described bloated joint is an oat tail groove structure, and described oat tail groove structure is connected the end of crossbeam, and this beam-ends flexibly connects, the other end is fixedly connected, described crossbeam is along crossbeam parallel direction contraction or expansion the time, and the dovetail groove generation relatively moves along the crossbeam parallel direction, absorbs the deformation quantity that the crossbeam contraction or expansion causes.
[embodiment 2]
A kind of gantry structure lathe, comprise pedestal, crossbeam, left column, right column, affiliated crossbeam has expansion joints, described bloated joint is an oat tail groove structure, and described oat tail groove structure is connected the end of crossbeam, and this beam-ends flexibly connects, the other end is fixedly connected, described crossbeam is along crossbeam parallel direction contraction or expansion the time, and the dovetail groove generation relatively moves along the crossbeam parallel direction, absorbs the deformation quantity that the crossbeam contraction or expansion causes.
Crossbeam expansion joints based on oat tail groove structure, as shown in Figure 2, described bloated joint is an oat tail groove structure, described oat tail groove structure is connected the end of crossbeam, this beam-ends flexibly connects, and the other end is fixedly connected, and described crossbeam is along crossbeam parallel direction contraction or expansion the time, the dovetail groove generation relatively moves along the crossbeam parallel direction, absorbs the deformation quantity that the crossbeam contraction or expansion causes.The described end that flexibly connects adopts 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.Described crossbeam expands or when shrinking, crossbeam is stable along vertical crossbeam direction, and during described crossbeam expanded by heating, the relative slip along the crossbeam length direction takes place dovetail groove, absorbs the deformation quantity that crossbeam expands and causes.When described crossbeam shrank, dovetail groove returned to the origin-location.Profile as shown in Figure 3.
[embodiment 3]
A kind of gantry structure lathe, as shown in Figure 1, comprise pedestal, crossbeam, left column, right column, affiliated crossbeam has expansion joints, and described bloated joint is an oat tail groove structure, described oat tail groove structure is connected the end of crossbeam, this beam-ends flexibly connects, and the other end is fixedly connected, and described crossbeam is along crossbeam parallel direction contraction or expansion the time, the dovetail groove generation relatively moves along the crossbeam parallel direction, absorbs the deformation quantity that the crossbeam contraction or expansion causes.
[embodiment 4]
A kind of gantry structure lathe, shown in Fig. 4,5, comprise pedestal, crossbeam, left column, right column, affiliated crossbeam has expansion joints, and described bloated joint is an oat tail groove structure, described oat tail groove structure is connected the end of crossbeam, this beam-ends flexibly connects, and the other end is fixedly connected, and described crossbeam is along crossbeam parallel direction contraction or expansion the time, the dovetail groove generation relatively moves along the crossbeam parallel direction, absorbs the deformation quantity that the crossbeam contraction or expansion causes.The described end that flexibly connects adopts 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, the relative slip along the crossbeam length direction takes place in dovetail groove, absorbs the deformation quantity that crossbeam expands and causes; When described crossbeam shrank, dovetail groove returned to the origin-location.
Claims (10)
1. gantry structure lathe, comprise pedestal, crossbeam, left column, right column, affiliated crossbeam has expansion joints, described bloated joint is an oat tail groove structure, and described oat tail groove structure is connected the end of crossbeam, and this beam-ends flexibly connects, the other end is fixedly connected, described crossbeam is along crossbeam parallel direction contraction or expansion the time, and the dovetail groove generation relatively moves along the crossbeam parallel direction, absorbs the deformation quantity that the crossbeam contraction or expansion causes.
2. gantry structure lathe according to claim 1, it is characterized in that described oat tail groove structure is connected the end of crossbeam, this beam-ends flexibly connects, the other end is fixedly connected, described crossbeam is along crossbeam parallel direction contraction or expansion the time, the dovetail groove generation relatively moves along the crossbeam parallel direction, absorbs the deformation quantity that the crossbeam contraction or expansion causes.
3. gantry structure lathe according to claim 2 is characterized in that the described end that flexibly connects adopts the flexible hinge structure.
4. gantry structure lathe according to claim 2 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.
5. gantry structure lathe according to claim 2, when it is characterized in that described crossbeam expansion or contraction, crossbeam is stable along vertical crossbeam direction.
6. gantry structure lathe according to claim 1, when it is characterized in that described crossbeam expanded by heating, the relative slip along the crossbeam length direction takes place in dovetail groove, absorbs the deformation quantity that crossbeam expands and causes.
7. the crossbeam expansion joints based on oat tail groove structure according to claim 1, when it is characterized in that described crossbeam shrinks, dovetail groove returns to the origin-location.
8. gantry structure lathe according to claim 1 is characterized in that the described end that flexibly connects adopts the flexible hinge structure.
9. basic 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; When described crossbeam expansion or contraction, crossbeam is stable along vertical crossbeam direction.
10. gantry structure lathe according to claim 1, when it is characterized in that described crossbeam expanded by heating, the relative slip along the crossbeam length direction takes place in dovetail groove, absorbs the deformation quantity that crossbeam expands and causes; When described crossbeam shrank, dovetail groove returned to the origin-location.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100159555A CN103212995A (en) | 2012-01-19 | 2012-01-19 | Machine tool with gantry structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100159555A CN103212995A (en) | 2012-01-19 | 2012-01-19 | Machine tool with gantry structure |
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| CN103212995A true CN103212995A (en) | 2013-07-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109038632A (en) * | 2018-07-11 | 2018-12-18 | 许继集团有限公司 | Converter valve submodule control loop unit, converter valve sub-module assemblies and converter valve |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN201751088U (en) * | 2010-05-24 | 2011-02-23 | 四川长征机床集团有限公司 | Mounting structure of large-span machine tool component |
| US20110146431A1 (en) * | 2009-12-22 | 2011-06-23 | Tung-Hsin Chen | Rigid beam of portal frame type platform |
| CN202507065U (en) * | 2012-01-19 | 2012-10-31 | 昆山思拓机器有限公司 | Machine tool with gantry structure |
-
2012
- 2012-01-19 CN CN2012100159555A patent/CN103212995A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| US20110146431A1 (en) * | 2009-12-22 | 2011-06-23 | Tung-Hsin Chen | Rigid beam of portal frame type platform |
| CN201751088U (en) * | 2010-05-24 | 2011-02-23 | 四川长征机床集团有限公司 | Mounting structure of large-span machine tool component |
| CN202507065U (en) * | 2012-01-19 | 2012-10-31 | 昆山思拓机器有限公司 | Machine tool with gantry structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109038632A (en) * | 2018-07-11 | 2018-12-18 | 许继集团有限公司 | Converter valve submodule control loop unit, converter valve sub-module assemblies and converter valve |
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Application publication date: 20130724 |