CN202507119U - Cross beam expansion joint based on sliding rail structure - Google Patents
Cross beam expansion joint based on sliding rail structure Download PDFInfo
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- CN202507119U CN202507119U CN2012200233188U CN201220023318U CN202507119U CN 202507119 U CN202507119 U CN 202507119U CN 2012200233188 U CN2012200233188 U CN 2012200233188U CN 201220023318 U CN201220023318 U CN 201220023318U CN 202507119 U CN202507119 U CN 202507119U
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- crossbeam
- cross beam
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Abstract
The utility model relates to a cross beam expansion joint based on a sliding rail structure, which mainly solves the problem of stress deformation caused by thermal expansion of a cross beam of a machine tool in the prior art. By virtue of the cross beam expansion joint, one end of the cross beam is in fixed connection and the other end of the cross beam is in flexible connection; and the cross beam and a vertical column are connected with each other through a sliding rail along the length direction of the cross beam. When the cross beam is heated to be expanded, a sliding table of the sliding rail and a guide rail generate relative sliding along the length direction of the cross beam, so that the deformation amount caused by the expansion of the cross beam is absorbed; and when the cross beam shrinks, the sliding rail returns to the original position. Through the technical scheme, the cross beam expansion joint well solves the problem and can be applied to industrial production of gantry-structure machine tools.
Description
Technical field
The utility model relates to a kind of crossbeam expansion joints based on 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 process.Conventional engineering material all has the problem of expanded by heating distortion; Like 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, but also monoblock cast forms, and in the space of inside and outside wall and reinforcement, inserts C30 concrete and swelling agent mixt.In order to increase the damping of crossbeam; Improve the dynamic property of crossbeam; The utility model is inserted 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 said 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 said 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 side relative 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 receives the inhibition of the reaction force of a plurality of parts that contacts 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 does not greatly receive steel construction to be out of shape the infringement that is brought.
The utility model provides a kind of crossbeam expansion joints based on rail structure, is applicable to the gantry structure lathe, solves the stress deformation problem that the lathe crossbeam expands and causes.
Summary of the invention
The utility model technical problem to be solved 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 rail structure is provided, and this crossbeam expansion joints 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 scheme that the utility model adopts is following: a kind of crossbeam expansion joints based on rail structure, and said crossbeam one end is for being fixedly connected; One end is for flexibly connecting, and is connected through the slide rail along the crossbeam length direction between described crossbeam and the column, when the crossbeam expanded by heating; Relative slip along the crossbeam length direction takes place in the slide unit of slide rail and guide rail; Absorb the deformation quantity that crossbeam expands and causes, when crossbeam shrank, slide rail returned to the origin-location.
In the technique scheme, the said end that flexibly connects is the flexible hinge structure.Said 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 said crossbeam expansion or contraction, crossbeam is stable along vertical crossbeam direction.During said crossbeam contraction or expansion, the quality of fit of crossbeam is constant.Said column is divided into left column and right column.
Adopt a kind of gantry structure lathe of the expansion joints manufacturing of the utility model, comprise pedestal, crossbeam, left column, right column, expansion joints; Affiliated expansion joints is a rail structure, and said crossbeam one end is for being fixedly connected, and an end is for flexibly connecting; Be connected through slide rail between described crossbeam and the column along the crossbeam length direction; When the crossbeam expanded by heating, the relative slip along the crossbeam length direction takes place in the slide unit of slide rail and guide rail, absorbs the deformation quantity that crossbeam expands and causes; When crossbeam shrank, slide rail returned to the origin-location.
In the technique scheme, said Longmen machine tool crossbeam flexibly connects end and is the flexible hinge structure; Said 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 said crossbeam expansion or contraction, crossbeam is stable along vertical crossbeam direction; During said crossbeam expanded by heating, slide rail absorbs the deformation quantity that crossbeam expands and causes along the relative slip of crossbeam length direction; When said crossbeam shrank, slide rail returned to the origin-location.
The technical scheme of the utility model; Crossbeam expansion joints based on rail structure; When the crossbeam expanded by heating, the relative slip along the crossbeam length direction takes place in slide rail, absorbs 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 go back to 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 utility model 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 fixedly sketch map of gantry structure crossbeam.
Fig. 2 is the rail structure sketch map.
Fig. 3 is the expansion joints sketch map of rail structure.
Fig. 4 absorbs the deformation sketch map 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.
Through embodiment the utility model is done further to set forth below.
The specific embodiment
[embodiment 1]
A kind of crossbeam expansion joints based on rail structure is like Fig. 2,3, shown in 4, based on the crossbeam expansion joints of rail structure; Said crossbeam one end is for being fixedly connected, and an end is for flexibly connecting, and is connected through the slide rail along the crossbeam length direction between described crossbeam and the column; When the crossbeam expanded by heating, the relative slip along the crossbeam length direction takes place in the slide unit of slide rail and guide rail, absorbs 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 2]
A kind of crossbeam expansion joints based on rail structure, said crossbeam one end is for being fixedly connected, and an end is for flexibly connecting; Be connected through slide rail between described crossbeam and the column along the crossbeam length direction; When the crossbeam expanded by heating, the relative slip along the crossbeam length direction takes place in the slide unit of slide rail and guide rail, absorbs the deformation quantity that crossbeam expands and causes; When crossbeam shrank, slide rail returned to the origin-location.
Said column is divided into left column and right column; The said end that flexibly connects is the flexible hinge structure; Said 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 said crossbeam contraction or expansion, the quality of fit of crossbeam is constant.
[embodiment 3]
A kind of gantry structure lathe, as shown in Figure 1, comprise pedestal, crossbeam, left column, right column, expansion joints; Affiliated expansion joints is a rail structure, and said crossbeam one end is for being fixedly connected, and an end is for flexibly connecting; Be connected through the slide rail along the crossbeam length direction between described crossbeam and the column, when the crossbeam expanded by heating, the relative slip along the crossbeam length direction takes place in the slide unit of slide rail and guide rail; 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 4]
A kind of gantry structure lathe comprises pedestal, crossbeam, left column, right column, expansion joints; Affiliated expansion joints is a rail structure, and said crossbeam one end is for being fixedly connected, and an end is for flexibly connecting; Be connected through the slide rail along the crossbeam length direction between described crossbeam and the column, when the crossbeam expanded by heating, the relative slip along the crossbeam length direction takes place in the slide unit of slide rail and guide rail; Absorb the deformation quantity that crossbeam expands and causes, when crossbeam shrank, slide rail returned to the origin-location.
The said end that flexibly connects is the flexible hinge structure, and said 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 said crossbeam contraction or expansion, the quality of fit of crossbeam is constant.
Claims (6)
1. crossbeam expansion joints based on rail structure, said crossbeam one end is for being fixedly connected, and an end is for flexibly connecting; Be connected through slide rail between described crossbeam and the column along the crossbeam length direction; When the crossbeam expanded by heating, the relative slip along the crossbeam length direction takes place in the slide unit of slide rail and guide rail, absorbs the deformation quantity that crossbeam expands and causes; When crossbeam shrank, slide rail returned to the origin-location.
2. the crossbeam expansion joints based on rail structure according to claim 1 is characterized in that the said end that flexibly connects adopts the flexible hinge structure.
3. the crossbeam expansion joints based on rail structure according to claim 1 is characterized in that said 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 rail structure according to claim 1, when it is characterized in that said crossbeam expansion or contraction, crossbeam is stable along vertical crossbeam direction.
5. the crossbeam expansion joints based on rail structure according to claim 1, when it is characterized in that said crossbeam contraction or expansion, the quality of fit of crossbeam is constant.
6. the crossbeam expansion joints based on rail structure according to claim 1 is characterized in that said column is divided into left column and right column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200233188U CN202507119U (en) | 2012-01-19 | 2012-01-19 | Cross beam expansion joint based on sliding rail structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200233188U CN202507119U (en) | 2012-01-19 | 2012-01-19 | Cross beam expansion joint based on sliding rail structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202507119U true CN202507119U (en) | 2012-10-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200233188U Expired - Fee Related CN202507119U (en) | 2012-01-19 | 2012-01-19 | Cross beam expansion joint based on sliding rail structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202507119U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103212993A (en) * | 2012-01-19 | 2013-07-24 | 昆山思拓机器有限公司 | Crossbeam expanded joint based on sliding rail structure |
-
2012
- 2012-01-19 CN CN2012200233188U patent/CN202507119U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103212993A (en) * | 2012-01-19 | 2013-07-24 | 昆山思拓机器有限公司 | Crossbeam expanded joint based on sliding rail structure |
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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: 20121031 Termination date: 20200119 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |