CN103212998A - Crossbeam expanded joint based on dovetail groove structure - Google Patents
Crossbeam expanded joint based on dovetail groove structure Download PDFInfo
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- CN103212998A CN103212998A CN2012100167208A CN201210016720A CN103212998A CN 103212998 A CN103212998 A CN 103212998A CN 2012100167208 A CN2012100167208 A CN 2012100167208A CN 201210016720 A CN201210016720 A CN 201210016720A CN 103212998 A CN103212998 A CN 103212998A
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- crossbeam
- groove structure
- dovetail groove
- oat tail
- expansion
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Abstract
The invention relates to a crossbeam expanded joint based on a dovetail groove structure, mainly solving the problem of stress deformation caused by the thermal expansion of a machine tool crossbeam in the prior art. The invention adopts the technical scheme that the crossbeam expanded joint based on the dovetail groove structure comprises the dovetail groove structure, one end of the crossbeam is fixedly connected, the other end of the crossbeam is flexibly connected, when the crossbeam shrinks or expands along the parallel direction of the crossbeam, the relative movement of a dovetail groove along the parallel direction of the crossbeam occurs, and the deformation amount caused by the shrinking or the expansion of the crossbeam is absorbed. According to the invention, the problem is better solved, and the crossbeam expanded joint can be applied to the industrial production of a portal structural machine tool.
Description
Technical field
The present invention relates to a kind of crossbeam expansion joints based on 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
One of 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 crossbeam expansion joints based on oat tail groove structure is provided, and this crossbeam expansion joints 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 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, 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.
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.
For solve the problems of the technologies described above two, 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.
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 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.
[embodiment 2]
A kind of 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 (6)
1. 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.
2. the crossbeam expansion joints based on oat tail groove structure according to claim 1 is characterized in that the described end that flexibly connects adopts the flexible hinge structure.
3. the crossbeam expansion joints based on oat tail groove structure 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. the crossbeam expansion joints based on oat tail groove structure according to claim 1, when it is characterized in that described crossbeam expansion or contraction, crossbeam is stable along vertical crossbeam direction.
5. the crossbeam expansion joints based on oat tail groove structure 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.
6. the crossbeam expansion joints based on oat tail groove structure according to claim 5, when it is characterized in that described crossbeam shrinks, dovetail groove returns to the origin-location.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100167208A CN103212998A (en) | 2012-01-19 | 2012-01-19 | Crossbeam expanded joint based on dovetail groove structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100167208A CN103212998A (en) | 2012-01-19 | 2012-01-19 | Crossbeam expanded joint based on dovetail groove structure |
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| Publication Number | Publication Date |
|---|---|
| CN103212998A true CN103212998A (en) | 2013-07-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100167208A Pending CN103212998A (en) | 2012-01-19 | 2012-01-19 | Crossbeam expanded joint based on dovetail groove structure |
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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 |
| CN202607235U (en) * | 2012-01-19 | 2012-12-19 | 昆山思拓机器有限公司 | Crossbeam expansion joint based on dovetail groove structure |
-
2012
- 2012-01-19 CN CN2012100167208A patent/CN103212998A/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 |
| CN202607235U (en) * | 2012-01-19 | 2012-12-19 | 昆山思拓机器有限公司 | Crossbeam expansion joint based on dovetail groove structure |
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Application publication date: 20130724 |