CN114850892B - A high accuracy numerical control machine tool base for precision processing - Google Patents
A high accuracy numerical control machine tool base for precision processing Download PDFInfo
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- CN114850892B CN114850892B CN202210419375.6A CN202210419375A CN114850892B CN 114850892 B CN114850892 B CN 114850892B CN 202210419375 A CN202210419375 A CN 202210419375A CN 114850892 B CN114850892 B CN 114850892B
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- invar steel
- cast iron
- invar
- guide rail
- pull rod
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/01—Frames, beds, pillars or like members; Arrangement of ways
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/12—Arrangements for cooling or lubricating parts of the machine
- B23Q11/126—Arrangements for cooling or lubricating parts of the machine for cooling only
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The invention relates to the technical field of numerical control machines, in particular to a high-precision numerical control machine tool base for machining precision parts, which comprises a cast iron base, wherein a workbench is fixedly arranged on the upper surface of the cast iron base and consists of a plurality of invar steel platforms which are arranged at intervals from left to right, guide rail strips are fixedly arranged on the upper surface of the cast iron base and between every two adjacent invar steel platforms, inverted T-shaped cavities are enclosed between the upper surface of each guide rail strip and every two adjacent invar steel platforms, a limit pull rod which horizontally penetrates through the invar steel platforms and the guide rail strips in sequence is arranged above the cast iron base, and two ends of each limit pull rod are connected with limit nuts through screw threads. The workbench made of invar steel is used as the working surface of the numerical control machine, has the advantage of small expansion coefficient, is suitable for processing precision workpieces and manufacturing parts with strict requirements on temperature deformation, consists of the invar steel platform, adopts non-integral design, and is simple to form and low in manufacturing cost.
Description
Technical Field
The invention relates to the technical field of numerical control machine tools, in particular to a high-precision numerical control machine tool base for machining precision parts.
Background
The machine tool workbench is a reference measuring tool for measuring the flatness of a workpiece, the working surface adopts a scraping process, the machine tool workbench has better plane stability and toughness, and can process workpieces in the shapes of V, T, U-shaped grooves, round holes, long holes and the like. The machine tool table is an indispensable basic platform in machine manufacturing. At present, the material of the machine tool workbench is generally high-strength cast iron HT200-300, the hardness of the working surface is HB170-240, and the machine tool workbench is durable after two times of artificial treatment (600-700 ℃ high-temperature annealing aging treatment and natural aging treatment for 2-3 years).
The invention patent application with publication number CN110977596A discloses a five-axis linkage numerical control machine tool workbench, which comprises a workbench body and a cleaning mechanism; the workbench body comprises an auxiliary bedplate and a main bedplate arranged on the auxiliary bedplate. The workbench in the patent of the invention is composed of hard metal materials and hard stone materials, and although the thermal deformation of the hard stone materials can be reduced, the strength performance of the hard stone materials is poor.
Invar Steel (transliteration of Invar Steel), which is one of iron-nickel alloys, comprises 36% nickel, 63.8% iron and 0.2% carbon. The material has the greatest characteristic of extremely small deformation along with temperature, and is suitable for manufacturing parts with strict requirements on temperature deformation. Invar and materials with similar characteristics to invar include: invar 35Ni-65Fe,32Ni-64Fe-4Co (super invar), 37Fe-32Co-11Cr (stainless invar), and amorphous alloy 83 Fe-17B. Invar steel has relatively high manufacturing cost and is not suitable for large-size manufacturing.
Disclosure of Invention
The present invention is directed to a high precision numerically controlled machine tool base for machining precision parts, so as to solve the problems mentioned in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a high accuracy digit control machine tool base for precision processing, includes the cast iron base, the last fixed surface of cast iron base is equipped with the workstation, the workstation is the invar steel platform that the interval set up about being by a plurality of and constitutes, the positive longitudinal section of invar steel platform is the T font, the upper surface of cast iron base just is located and all fixedly is equipped with the guide rail strip between two adjacent invar steel platforms, the upper surface and adjacent two of guide rail strip enclose between the invar steel platform and have closed the shape cavity of falling T, the top of cast iron base is equipped with and is the level and runs through in proper order the invar steel platform and the spacing pull rod of guide rail strip, the both ends of spacing pull rod just are located the workstation and control the side screw thread and are connected with stop nut.
Optionally, the invar platform is provided with a through hole allowing the limiting pull rod to horizontally pass through, the limiting pull rod is located outside the through hole, and a high-carbon cast iron sleeve is fixedly sleeved in the through hole, and the outer diameter of the high-carbon cast iron sleeve is matched with the aperture of the through hole.
Optionally, the end face, close to the invar steel platform, of the guide rail bar is fixedly provided with limiting teeth, and the invar steel platform is provided with limiting grooves matched with the limiting teeth.
Optionally, the upper surface of cast iron base just is located the left and right sides fixedly connected with cover seat of workstation, cover seat and the fixed cup joint of limit pull rod, limit pull rod is equipped with two, two limit pull rod is the symmetry setting about spacing tooth.
Optionally, a groove is formed in the upper surface of the invar steel platform, a heat sink is fixedly embedded in the groove, and the heat sink comprises a heat dissipation strip, expansion pieces integrally formed at two ends of the heat dissipation strip, and blocking pieces integrally formed on the lower surfaces of the expansion pieces; the rectangular upper surface of heat dissipation with the upper surface parallel and level of invar steel platform, the separation blade passes through bolt fixed connection with the invar steel platform.
Optionally, the heat sink further includes heat dissipation fins, the upper surfaces of the heat dissipation fins and the lower surface of the heat dissipation strip are integrally formed, and two ends of each heat dissipation fin are integrally formed with the two blocking pieces respectively.
Compared with the prior art, the invention has the following beneficial effects:
1. the workbench made of invar steel is used as the working surface of the numerical control machine, has the advantage of small expansion coefficient, is suitable for processing precision workpieces and manufacturing parts with strict requirements on temperature deformation, consists of the invar steel platform, namely adopts non-integral design, and has simple forming and low manufacturing cost;
2. according to the invar platform, the high-carbon cast iron sleeve is embedded in the invar platform, so that the vibration of the invar platform is reduced, and the processing precision of the invar platform is improved;
3. the limiting teeth are used for preventing the invar steel platform from moving back and forth on the cast iron base, the acting force of the invar steel platform on the limiting pull rod is reduced, the limiting pull rod is protected, the sleeve seat is used for providing longitudinal support for the limiting pull rod, and the damage of the invar steel platform to the limiting pull rod and a high-carbon cast iron sleeve is reduced;
4. the invention makes up the defect of poor heat conductivity of the invar platform through the radiating fins, so that the workbench can radiate heat in time, and the expansion fins and the retaining pieces are in claw shapes and clamp the invar platform, thereby having stable structure.
Drawings
FIG. 1 is a schematic structural view of the present invention as a whole;
FIG. 2 is a partial cross-sectional view of the present invention;
FIG. 3 is a schematic structural diagram of an invar platform according to the present invention;
FIG. 4 is a first perspective structural view of the heat sink of the present invention;
fig. 5 is a second perspective view of the heat sink of the present invention.
In the figure: 1. a cast iron base; 2. a guide rail bar; 3. limiting teeth; 4. a work table; 5. invar steel platform; 6. a through hole; 7. a limiting groove; 8. an inverted T-shaped cavity; 9. a limiting pull rod; 10. a limit nut; 11. a high carbon cast iron sleeve; 12. a sleeve seat; 13. a groove; 14. a heat sink; 15. a heat dissipation strip; 16. an expansion sheet; 17. a baffle plate; 18. a heat sink fin.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Example (b): referring to fig. 1-5, the present invention provides a high precision numerically controlled machine tool base for precision part processing, which comprises a cast iron base 1, wherein a workbench 4 is fixedly arranged on the upper surface of the cast iron base 1, and the workbench 4 is composed of five invar platforms 5 arranged at left and right intervals. The front longitudinal section of each invar steel platform 5 is T-shaped, the upper surface of each cast iron base 1 and the part between every two adjacent invar steel platforms 5 are integrally formed with a guide rail bar 2, and the guide rail bars 2 and the cast iron bases 1 are integrally formed. Enclose between the upper surface of guide rail bar 2 and two adjacent invar steel platforms 5 and have closed down T shape cavity 8, the T type groove of the shape cavity 8 of falling is equivalent to conventional numerical control machine tool workstation, and anchor clamps can slide in the shape cavity 8 of falling, are convenient for adjust and fixed work piece position on invar steel platform 5, and metal cuttings can be stayed in the shape cavity 8 of falling, and guide rail bar 2 is the metal cuttings storage surface, easily clean. The invention adopts the cast iron base 1 as the foundation of the numerical control machine, has extremely high shock resistance, adopts the workbench 4 made of invar steel as the working surface of the numerical control machine, has the advantage of small expansion coefficient, is suitable for processing precise workpieces and manufacturing parts with strict requirements on temperature deformation, and the workbench 4 consists of the invar steel platform 5, namely adopts non-integral design, has simple forming and low manufacturing cost. Wherein the invar platform 5 is strengthened by a cold deformation process.
On the basis of the above embodiments, in this embodiment, a position-limiting pull rod 9 horizontally penetrating through the invar steel platform 5 and the guide rail bar 2 in sequence is disposed above the cast iron base 1, and two ends of the position-limiting pull rod 9 and located at the left and right sides of the workbench 4 are screwed with position-limiting nuts 10. Spacing pull rod 9 links into whole with cast iron base 1 and invar steel platform 5, and stop nut 10 hinders about spacing pull rod 9.
On the basis of the above embodiment, in this embodiment, the invar steel platform 5 is provided with a through hole 6 allowing the limiting pull rod 9 to horizontally pass through, a high-carbon cast iron sleeve 11 is fixedly sleeved outside the limiting pull rod 9 and in the through hole 6, and the outer diameter of the high-carbon cast iron sleeve 11 is matched with the aperture of the through hole 6. The high-carbon cast iron sleeve 11 has a certain damping performance (the specific damping performance of the high-carbon cast iron is 19%), and the high-carbon cast iron sleeve 11 can reduce the vibration of the invar platform 5 and improve the processing precision of the invar platform 5.
On the basis of the above embodiments, in the present embodiment, the end surface of the guide rail bar 2 close to the invar platform 5 is integrally formed with the spacing teeth 3, and the invar platform 5 is provided with the spacing grooves 7 matched with the spacing teeth 3. Spacing tooth 3 hinders that invar steel platform 5 takes place the back-and-forth movement on cast iron base 1, reduces invar steel platform 5 to spacing pull rod 9's effort, protects spacing pull rod 9.
On the basis of the above embodiment, the upper surface of the cast iron base 1 and the left and right sides of the worktable 4 are fixedly connected with the sleeve seats 12 in this embodiment, the sleeve seats 12 are fixedly sleeved with the limiting pull rods 9, the two limiting pull rods 9 are provided, and the two limiting pull rods 9 are symmetrically arranged about the limiting teeth 3. The sleeve seat 12 provides longitudinal support for the spacing pull rod 9, and reduces the damage of the vibration of the invar platform 5 to the spacing pull rod 9 and the high-carbon cast iron sleeve 11.
On the basis of the above embodiments, in the present embodiment, the upper surface of the invar platform 5 is provided with a groove 13, a heat sink 14 is fixedly embedded in the groove 13, the heat sink 14 includes a heat sink strip 15, expansion pieces 16 integrally formed at two ends of the heat sink strip 15, and blocking pieces 17 integrally formed on the lower surfaces of the expansion pieces 16; the upper surface of the heat dissipation strip 15 is flush with the upper surface of the invar steel platform 5, and the retaining pieces 17 are fixedly connected with the invar steel platform 5 through bolts. The heat sink 14 further includes three heat dissipation fins 18, the upper surface of the heat dissipation fins 18 is integrally formed with the lower surface of the heat dissipation strip 15, two ends of the heat dissipation fins 18 are integrally formed with the two blocking pieces 17, respectively, and the heat dissipation fins 18 are arranged side by side. Expansion piece 16 and separation blade 17 are claw shape and embrace and press from both sides invar steel platform 5, stable in structure, and the installation of fin 14 and invar steel platform 5 is simple, and the change is dismantled to the convenience, and fin 14 compensates the poor defect of invar steel platform 5 heat conductivity for workstation 4 can in time dispel the heat.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (2)
1. The utility model provides a high accuracy numerical control machine tool base for precision processing which characterized in that: the guide rail type inverted T-shaped cavity drill jig comprises a cast iron base (1), a workbench (4) is fixedly arranged on the upper surface of the cast iron base (1), the workbench (4) is composed of a plurality of invar steel platforms (5) which are arranged at left and right intervals, the positive longitudinal section of each invar steel platform (5) is T-shaped, guide rail strips (2) are fixedly arranged on the upper surface of the cast iron base (1) and positioned between every two adjacent invar steel platforms (5), inverted T-shaped cavities (8) are enclosed between the upper surface of each guide rail strip (2) and every two adjacent invar steel platforms (5), limiting pull rods (9) horizontally penetrate through the invar steel platforms (5) and the guide rail strips (2) in sequence are arranged above the cast iron base (1), and the left and right sides of the workbench (4) at two ends of each limiting pull rod (9) are connected with limiting nuts (10) through screw threads;
the invar steel platform (5) is provided with a through hole (6) allowing a limit pull rod (9) to horizontally pass through, a high-carbon cast iron sleeve (11) is fixedly sleeved outside the limit pull rod (9) and positioned in the through hole (6), the outer diameter of the high-carbon cast iron sleeve (11) is matched with the aperture of the through hole (6), limit teeth (3) are fixedly arranged on the end face, close to the invar steel platform (5), of the guide rail bar (2), limit grooves (7) matched with the limit teeth (3) are formed in the invar steel platform (5), sleeve seats (12) are fixedly connected to the left side and the right side of the workbench (4) on the upper surface of the cast iron base (1), the sleeve seats (12) are fixedly sleeved with the limit pull rod (9), the two limit pull rods (9) are arranged symmetrically relative to the limit teeth (3);
a groove (13) is formed in the upper surface of the invar steel platform (5), a radiating fin (14) is fixedly embedded in the groove (13), and the radiating fin (14) comprises a radiating strip (15), expansion pieces (16) integrally formed at two ends of the radiating strip (15), and blocking pieces (17) integrally formed on the lower surfaces of the expansion pieces (16); the upper surface of heat dissipation rectangular (15) with the upper surface parallel and level of invar steel platform (5), separation blade (17) pass through bolt fixed connection with invar steel platform (5).
2. A high precision numerically controlled machine tool base for precision part machining according to claim 1, wherein: the radiating fin (14) further comprises radiating fins (18), the upper surfaces of the radiating fins (18) and the lower surface of the radiating strip (15) are integrally formed, and two ends of each radiating fin (18) are integrally formed with the two blocking pieces (17) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210419375.6A CN114850892B (en) | 2022-04-21 | 2022-04-21 | A high accuracy numerical control machine tool base for precision processing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210419375.6A CN114850892B (en) | 2022-04-21 | 2022-04-21 | A high accuracy numerical control machine tool base for precision processing |
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| CN114850892A CN114850892A (en) | 2022-08-05 |
| CN114850892B true CN114850892B (en) | 2023-01-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210419375.6A Active CN114850892B (en) | 2022-04-21 | 2022-04-21 | A high accuracy numerical control machine tool base for precision processing |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1035662A (en) * | 1962-01-12 | 1966-07-13 | Waldrich Werkzeugmasch | Machine tool having a rectilinearly reciprocated table |
| CN214979221U (en) * | 2021-10-31 | 2021-12-03 | 湖南及极科技有限公司 | Base of numerical control machine tool |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6022605A (en) * | 1983-07-19 | 1985-02-05 | Canon Inc | Precision transfer device |
| KR100973530B1 (en) * | 2007-08-20 | 2010-08-02 | 순환엔지니어링 주식회사 | Sample travelling stage with flexure mechanism module to absorb the deformation of slide |
| JP2018079545A (en) * | 2016-11-17 | 2018-05-24 | 株式会社 動研 | Loading table having adsorption function |
| CN207387229U (en) * | 2017-08-16 | 2018-05-22 | 中国重型机械研究院股份公司 | A kind of numerical control machining tool heat error control structure |
| KR20200064228A (en) * | 2018-11-28 | 2020-06-08 | 삼성디스플레이 주식회사 | Mask frame assembly and method of manufacturing mask frame assembly |
| CN113070514B (en) * | 2021-04-01 | 2024-01-05 | 三明学院 | Numerical control milling machine |
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2022
- 2022-04-21 CN CN202210419375.6A patent/CN114850892B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1035662A (en) * | 1962-01-12 | 1966-07-13 | Waldrich Werkzeugmasch | Machine tool having a rectilinearly reciprocated table |
| CN214979221U (en) * | 2021-10-31 | 2021-12-03 | 湖南及极科技有限公司 | Base of numerical control machine tool |
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