CN220462956U - Machine tool foot - Google Patents
Machine tool foot Download PDFInfo
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- CN220462956U CN220462956U CN202321803344.7U CN202321803344U CN220462956U CN 220462956 U CN220462956 U CN 220462956U CN 202321803344 U CN202321803344 U CN 202321803344U CN 220462956 U CN220462956 U CN 220462956U
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- screw rod
- foundation
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- 125000006850 spacer group Chemical group 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 15
- 238000012423 maintenance Methods 0.000 abstract description 5
- 239000004568 cement Substances 0.000 description 4
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
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Abstract
The application provides a lathe lower margin for the strutting arrangement of connecting the lathe, lower margin includes: a foundation main seat; the fixing screw rod comprises a first section and a second section, the first section of the fixing screw rod penetrates through the foundation main seat, and the second section of the fixing screw rod protrudes out of the upper surface of the foundation main seat and penetrates through the supporting device; the lock nut is matched with the second section of the screw thread of the fixing screw rod and is arranged above the supporting device; the first positioning assembly is arranged below the supporting device; and a second centering assembly disposed between the support device and the lock nut. The method and the device avoid the problem of extra deformation and stress caused by deflection in the horizontal adjustment process and the precision adjustment process of the machine tool, and improve the stability and the precision maintenance life of the machine tool.
Description
Technical Field
The application relates to the technical field of machine tools, in particular to a machine tool foundation.
Background
In the manufacturing and using process of the machine tool, the machine tool has higher quality, so the machine tool has higher requirement on the foundation for installing the machine tool, in particular to an extra heavy machine tool, and the foundation for installing the machine tool has higher requirement. The foundation is a connecting member between the machine tool and the foundation, and plays a very important role. In addition, the foundation is used as an adjusting mechanism of the machine tool, and the requirements of horizontal adjustment and precision adjustment of the machine tool under different conditions are also required to be met. The existing foundation is generally in a single spherical centering structure on a supporting surface as disclosed in patent CN216843730U, deflection of a stressed part can occur in a horizontal adjustment process or an accuracy adjustment process of a machine tool, and the additional deformation and stress problems of a supporting device and the foundation are brought, so that the foundation has an influence on the application of the high-accuracy machine tool.
It should be noted that the information disclosed in the foregoing background section is only for enhancement of understanding of the background of the present application and thus may include information that does not form the prior art that is already known to those of ordinary skill in the art.
Disclosure of Invention
Aiming at the problems in the prior art, the purpose of the application is to provide a machine tool foundation, which can avoid the extra deformation and stress problems caused by deflection in the horizontal adjustment process and the precision adjustment process of a machine tool, and improve the stability and the precision maintenance life of the machine tool.
The embodiment of the application provides a lathe lower margin for the strutting arrangement of connecting the lathe, lower margin includes:
a foundation main seat;
the fixing screw rod comprises a first section and a second section, the first section of the fixing screw rod penetrates through the foundation main seat, and the second section of the fixing screw rod protrudes out of the upper surface of the foundation main seat and penetrates through the supporting device;
the lock nut is matched with the second section of the screw thread of the fixing screw rod and is arranged above the supporting device;
the first positioning assembly is arranged below the supporting device;
and the second centering assembly is arranged between the supporting device and the locking nut.
In some embodiments, the first centering assembly comprises:
the adjusting screw rod is sleeved outside the fixing screw rod and comprises a third section and a fourth section, the third section is positioned inside the foundation main seat, the fourth section protrudes out of the surface of the foundation main seat and is arranged in the supporting device in a penetrating mode, and a spherical supporting part is arranged between the third section and the fourth section;
the first spherical centering pad is sleeved outside the adjusting screw rod, the upper surface of the first spherical centering pad is in contact with the supporting device, and spherical matching is formed between the lower surface of the first spherical centering pad and the upper surface of the spherical supporting portion.
In some embodiments, the lower surface of the first spherical centering pad is a concave spherical surface and the upper surface of the spherical support is a convex spherical surface.
In some embodiments, the second centering assembly comprises:
a second spherical centering pad;
the third spherical centering pad is positioned above the second spherical centering pad, spherical matching is formed between the lower surface of the third spherical centering pad and the upper surface of the second spherical centering pad, and the upper surface of the third spherical centering pad is in contact with the locking nut.
In some embodiments, the second centering assembly further comprises a spacer, a lower surface of the spacer being in contact with an upper surface of the support device, an upper surface of the spacer being in contact with a lower surface of the second spherical centering pad.
In some embodiments, the second spherical centering pad is a concave spherical surface and the third spherical centering pad is a convex spherical surface.
In some embodiments, the anchor main seat comprises a through hole for the fixing screw rod to pass through, and the upper end and the lower end of the through hole are respectively provided with internal threads, so that threaded fit is formed between the adjusting screw rod and the fixing screw rod respectively.
In some embodiments, a plurality of annular bosses are provided on the outside of the anchor main seat, and the plurality of annular bosses are sequentially arranged along the length direction of the anchor main seat.
In some embodiments, a communication hole is formed in a lower side surface of the foundation main seat, and the communication hole communicates the inside and the outside of the foundation main seat.
In some embodiments, the upper portion of the foot anchor is provided with an extension arm, a threaded hole is provided in the extension arm, the threaded hole is at least partially located at the same height as the supporting device, and the threaded hole extends in the horizontal direction.
In some embodiments, the extension arm is L-shaped, one end of the extension arm is connected to the upper side of the foundation main seat, and the second end of the extension arm extends upwards and is provided with the threaded hole.
The machine tool foundation provided by the application has the following advantages:
through adopting the lathe lower margin of this application, when being connected to the strutting arrangement of lathe, all be equipped with centering subassembly in strutting arrangement's top and below, effectively avoid the lathe to support by the lower margin in horizontal adjustment process and the precision adjustment in-process and the extra deformation and stress problem that locking mode brought, reduce the influence to the lathe precision, improve the stability and the precision maintenance life-span of lathe. The machine tool foundation can be applied to high-precision machine tools, extra heavy machine tools, numerical control machine tools and the like, and can also be applied to common machine tools.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments, made with reference to the following drawings.
Fig. 1 is a schematic structural view of a machine tool foot and a supporting device according to a first embodiment of the present application;
FIG. 2 is a cross-sectional view of a machine tool foot engaged with a support device according to a first embodiment of the present application;
FIG. 3 is a perspective view of a machine tool foot according to a first embodiment of the present application;
fig. 4 is a schematic structural view of the cooperation between the machine tool foundation and the supporting device according to the second embodiment of the present application;
FIG. 5 is a cross-sectional view of a second embodiment of the present application showing the engagement of a machine tool foot with a support device;
fig. 6 is a perspective view of a machine tool foot according to a second embodiment of the present application.
Reference numerals:
1. spherical support part of foundation main seat 31
11. First spherical centering pad of boss 4
12. Communicating hole 5 gasket
13. Second spherical centering pad of extension arm 6
131. Third spherical centering pad of threaded hole 7
14. Through hole 8 lock nut
2. Fixing screw 9 supporting device
3. Adjusting screw
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus a repetitive description thereof will be omitted. "or", "or" in the specification may each mean "and" or ". Although the terms "upper", "lower", "between", etc. may be used in this specification to describe various example features and elements of the present application, these terms are used herein for convenience only, e.g., in terms of the orientation of the examples depicted in the drawings. Nothing in this specification should be construed as requiring a particular three-dimensional orientation of the structure to fall within the scope of this application. Although the terms "first" or "second" etc. may be used herein to describe certain features, these features should be interpreted in a descriptive sense only and not for purposes of limitation as to the number and importance of the particular features.
In order to solve the technical problem among the prior art, this application provides a lathe lower margin for the strutting arrangement of connecting the lathe, the lower margin includes: a foundation main seat; the fixing screw rod comprises a first section and a second section, the first section of the fixing screw rod penetrates through the foundation main seat, and the second section of the fixing screw rod protrudes out of the upper surface of the foundation main seat and penetrates through the supporting device; the lock nut is in threaded fit with the fixed screw rod and is arranged above the supporting device; the first positioning assembly is arranged below the supporting device; and a second centering assembly disposed between the support device and the lock nut. Through adopting the lathe lower margin of this application, when being connected to the strutting arrangement of lathe, all be equipped with centering subassembly in strutting arrangement's top and below, effectively avoid the lathe to support by the lower margin in horizontal adjustment process and the precision adjustment in-process and the extra deformation and stress problem that locking mode brought, reduce the influence to the lathe precision, improve the stability and the precision maintenance life-span of lathe.
The structure of the machine tool foot in the specific embodiment will be described in detail with reference to the accompanying drawings. It is to be understood that the drawings and the following description are exemplary only and are not intended to limit the scope of the present application.
Fig. 1 and 2 are schematic structural views of a machine tool foot according to a first embodiment of the present application, in cooperation with a supporting device of the machine tool, and fig. 3 is a perspective view of the machine tool foot according to the first embodiment. In this embodiment, the machine tool foot comprises a foot main seat 1, a fixing screw 2 and a lock nut 8. The foundation main seat 1 is barrel-shaped, a through hole 14 is formed in the foundation main seat, the through hole 14 penetrates through the upper end and the lower end of the foundation main seat 1, and extends along the length direction (axial direction) of the foundation main seat 1. The inner surface of the lower end of the through hole 14 is provided with an internal thread. The fixing screw 2 is a long rod extending along the length direction of the foundation main seat 1, and comprises a first section below and a second section above, the first section of the fixing screw 2 is arranged in the through hole 14 of the foundation main seat 1 in a penetrating mode, external threads are arranged on the outer surface of the lower end of the fixing screw 2, and the external threads are in threaded fit with internal threads at the lower end of the through hole 14. The second section of the fixing screw 2 protrudes from the upper surface of the foundation main seat 1 and is inserted into the supporting device 9. The lock nut 8 is in threaded fit with the top end of the second section of the fixing screw 2 and is arranged above the supporting device 9. In this embodiment, two sets of centering components are provided, wherein the first centering component is disposed below the supporting device 9, the second centering component is disposed between the supporting device 9 and the lock nut 8, and the accuracy of supporting the machine tool by the machine tool foundation is ensured by the two sets of centering components.
In the existing connection structure of the foundation and the foundation, the structure of pouring the foundation and the foundation together and fixing the foundation and the machine tool together is adopted, so that the application performance of the machine tool and the service life of the precision are improved. However, when the structure is used for bearing an extra heavy machine tool, the foundation and the foundation part cannot be completely fixed, and only the extra fixed anchor hooks and the foundation part can be poured together, so that the lower plane of the foundation and the ground cannot be completely integrated, the stability of the fixation of the foundation is affected, and the problem is particularly serious for the extra heavy machine tool. Based on this, this embodiment further improves the foundation, the outside of the foundation main seat 1 is provided with a plurality of annular bosses 11, the annular bosses 11 are, for example, circular bosses or square bosses, and the plurality of annular bosses 11 are sequentially arranged along the length direction of the foundation main seat 1. The annular boss 11 can limit the situation that the foundation is separated from the ground after receiving an upward force. The lower part side of the foundation main seat 1 is provided with the communicating hole 12, the communicating hole 12 is communicated with the through hole 14 and the outside of the foundation main seat 1, and when cement is poured, cement can flow into the through hole 14 through the communicating hole 12, so that the axial tensile capacity of the foundation is enhanced, the torsion of the foundation around the axial direction is limited, and the overall performance of the foundation and the foundation is greatly enhanced when the foundation is used. When the foundation is used, the foundation main seat 1 is flush with the upper surface of the foundation, high-strength cement is poured into a reserved hole of the foundation and filled, the cement is reused after being completely solidified, the stability of the connection between the foundation and the foundation is improved through the design of the annular boss 11 and the communication holes 12, the bearing capacity of the foundation is improved, and the application problem of the existing foundation scheme in the field of overweight machine tools is solved.
As shown in fig. 2, the first centering assembly includes an adjustment screw 3 and a first spherical centering pad 4. The adjusting screw 3 is sleeved outside the fixing screw 2, the adjusting screw 3 comprises a third section below and a fourth section above, the third section is located inside the through hole 14 of the foundation main seat 1, and the fourth section protrudes out of the surface of the foundation main seat 1 and penetrates through the supporting device 9. The inner surface of the upper end of the through hole 14 is provided with an internal thread, for example, a fine tooth internal thread, and the outer surface of the third section of the adjusting screw 3 is provided with a fine tooth external thread which forms a threaded fit with the fine tooth internal thread. A spherical supporting part 31 is arranged between the third section and the fourth section, and the spherical supporting part 31 is an annular protruding part, and the outer diameter of the spherical supporting part is larger than that of the adjusting screw 3. The upper surface of the spherical supporting portion 31 is a convex spherical surface, and the lower surface of the spherical supporting portion 31 may be a plane, a spherical surface or an inclined surface. The first spherical centering pad 4 is sleeved outside the adjusting screw 3 and is located between the spherical supporting portion 31 of the adjusting screw 3 and the lower surface of the supporting device 9. The upper surface of the first spherical centering pad 4 is a plane and contacts with the lower surface of the supporting device 9, and the lower surface of the first spherical centering pad 4 is a concave spherical surface and forms spherical fit with the upper surface of the spherical supporting portion 31.
As shown in fig. 2, the second centering assembly includes a gasket 5, a second spherical centering pad 6 and a third spherical centering pad 7 sequentially disposed from bottom to top. The lower surface of the spacer 5 is in contact with the upper surface of the supporting means 9, and the upper surface of the spacer 5 is in contact with the lower surface of the second spherical centering pad 6. The upper and lower surfaces of the gasket 5 may be planar, but the present application is not limited thereto. The lower surface of the second spherical centering pad 6 may be planar. A spherical fit is formed between the upper surface of the second spherical centering pad 6 and the lower surface of the third spherical centering pad 7, and the upper surface of the third spherical centering pad 7 is planar and contacts the lower surface of the lock nut 8. In this embodiment, the second spherical centering pad 6 is a concave spherical surface, and the third spherical centering pad 7 is a convex spherical surface.
When an oblique pressure is applied to an object, deformation and stress due to the pressure are generated inside the object, and thus, if the contact surface of the supporting device 9 of the machine tool is not perpendicular to the foot axis, deformation and stress are generated in the supporting device 9 and the foot member. Therefore, in this embodiment, a double centering structure is adopted, and the lower first centering assembly can adjust the problem that the contact surface of the supporting device 9 of the machine tool is not perpendicular to the ground pin axis. The upper second centering component can adjust the locking (compacting) structure (the matching structure of the locking nut 8 and the fixing screw 2) and the contact surface of the supporting device 9 is not vertical to the ground pin axis in the pressing process. When being connected to strutting arrangement 9 of lathe, all be equipped with centering subassembly in strutting arrangement 9 top and below, effectively avoid the skew of lathe in horizontal adjustment process and precision adjustment in-process, and then avoid the extra deformation and the stress problem that bring by lower margin support and locking mode, reduce the influence to the lathe precision, improve the stability and the precision maintenance life-span of lathe.
Fig. 4 and 5 are schematic structural views of the cooperation of the machine tool foundation and the supporting device of the machine tool according to the second embodiment of the present application. Fig. 6 is a perspective view of a machine tool foot according to a second embodiment of the present application. The second embodiment differs from the first embodiment in that: the upper portion of lower margin seat 1 is equipped with extension arm 13, be equipped with screw hole 131 in the extension arm 13, screw hole 131 at least partially with strutting arrangement 9 is located same height, just screw hole 131 extends along the horizontal direction. In this second embodiment, the extension arm 13 has an L shape, one end of the extension arm 13 is connected to the upper side surface of the anchor base 1, and the second end of the extension arm 13 extends upward and is provided with the screw hole 131. In use, a screw can be inserted into the threaded hole 131, the bottom of the screw is propped against the side surface of the supporting device 9, and the transverse position of the supporting device 9 and thus the machine tool can be precisely adjusted by adjusting the position of the screw in the threaded hole 131.
The foregoing is a further detailed description of the present application in connection with the specific preferred embodiments, and it is not intended that the practice of the present application be limited to such description. It should be understood that those skilled in the art to which the present application pertains may make several simple deductions or substitutions without departing from the spirit of the present application, and all such deductions or substitutions should be considered to be within the scope of the present application.
Claims (11)
1. A machine tool foot for attachment to a support device of a machine tool, the foot comprising:
a foundation main seat;
the fixing screw rod comprises a first section and a second section, the first section of the fixing screw rod penetrates through the foundation main seat, and the second section of the fixing screw rod protrudes out of the upper surface of the foundation main seat and penetrates through the supporting device;
the lock nut is matched with the second section of the screw thread of the fixing screw rod and is arranged above the supporting device;
the first positioning assembly is arranged below the supporting device;
and the second centering assembly is arranged between the supporting device and the locking nut.
2. The machine tool foot according to claim 1, wherein the first positioning assembly comprises:
the adjusting screw rod is sleeved outside the fixing screw rod and comprises a third section and a fourth section, the third section is positioned inside the foundation main seat, the fourth section protrudes out of the surface of the foundation main seat and is arranged in the supporting device in a penetrating mode, and a spherical supporting part is arranged between the third section and the fourth section;
the first spherical centering pad is sleeved outside the adjusting screw rod, the upper surface of the first spherical centering pad is in contact with the supporting device, and spherical matching is formed between the lower surface of the first spherical centering pad and the upper surface of the spherical supporting portion.
3. The machine tool foot according to claim 2, wherein the lower surface of the first spherical centering pad is a concave spherical surface, and the upper surface of the spherical support portion is a convex spherical surface.
4. The machine tool foot according to claim 1, wherein the second centering assembly comprises:
a second spherical centering pad;
the third spherical centering pad is positioned above the second spherical centering pad, spherical matching is formed between the lower surface of the third spherical centering pad and the upper surface of the second spherical centering pad, and the upper surface of the third spherical centering pad is in contact with the locking nut.
5. The machine tool foot according to claim 4, wherein the second centering assembly further comprises a spacer, a lower surface of the spacer being in contact with an upper surface of the support means, an upper surface of the spacer being in contact with a lower surface of the second spherical centering pad.
6. The machine tool foot according to claim 4, wherein the second spherical centering pad is a concave spherical surface and the third spherical centering pad is a convex spherical surface.
7. The machine tool foot according to claim 2, wherein the foot rest comprises a through hole for the fixing screw rod to pass through, and the upper end and the lower end of the through hole are respectively provided with internal threads, and respectively form threaded fit with the adjusting screw rod and the fixing screw rod.
8. The machine tool foundation according to claim 1, wherein a plurality of annular bosses are provided on the outside of the foundation main base, and the plurality of annular bosses are sequentially arranged along the length direction of the foundation main base.
9. The machine tool foot according to claim 1, wherein a communication hole is provided in a lower side surface of the foot stool, the communication hole communicating an inside and an outside of the foot stool.
10. The machine tool foot according to claim 1, wherein an extension arm is provided at an upper portion of the foot main seat, a screw hole is provided in the extension arm, the screw hole is at least partially located at the same height as the supporting means, and the screw hole extends in a horizontal direction.
11. The machine tool foot according to claim 10, wherein the extension arm is L-shaped, one end of the extension arm is connected to an upper side surface of the foot main seat, and a second end of the extension arm extends upward and is provided with the screw hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321803344.7U CN220462956U (en) | 2023-07-10 | 2023-07-10 | Machine tool foot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321803344.7U CN220462956U (en) | 2023-07-10 | 2023-07-10 | Machine tool foot |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220462956U true CN220462956U (en) | 2024-02-09 |
Family
ID=89805347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321803344.7U Active CN220462956U (en) | 2023-07-10 | 2023-07-10 | Machine tool foot |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220462956U (en) |
-
2023
- 2023-07-10 CN CN202321803344.7U patent/CN220462956U/en active Active
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