CN112453926B - High-rigidity lifting device for ultraprecise machining - Google Patents
High-rigidity lifting device for ultraprecise machining Download PDFInfo
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- CN112453926B CN112453926B CN202011336999.9A CN202011336999A CN112453926B CN 112453926 B CN112453926 B CN 112453926B CN 202011336999 A CN202011336999 A CN 202011336999A CN 112453926 B CN112453926 B CN 112453926B
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- lower wedge
- shaped block
- guide rail
- block
- wedge
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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
- B23Q1/25—Movable or adjustable work or tool supports
Abstract
The invention relates to a high-rigidity lifting device for ultraprecise machining, which is provided with a base and a lifting panel, wherein a lower wedge-shaped block with an upward inclined surface is arranged on the base, an upper wedge-shaped block with an inclined surface matched with the lower wedge-shaped block oppositely is fixed on the bottom surface of the lifting panel, a first friction guide rail is fixed on the inclined surface of the upper wedge-shaped block, the inclined surface of the lower wedge-shaped block is in sliding fit with the first friction guide rail, a second friction guide rail is fixed on the base, the bottom surface of the lower wedge-shaped block is in sliding fit with the second friction guide rail, a trapezoidal screw rod is rotatably arranged in the lower wedge-shaped block, and a trapezoidal nut in rotating fit with the trapezoidal screw rod is fixedly connected on the lower wedge-shaped block. The invention realizes the height adjustment of the device by the lifting effect of the lower wedge block on the upper wedge block under the action of the wedge motion generated by the translation of the lower wedge block, and the sliding friction is adopted to replace the rolling friction motion used by the traditional lifting device, thereby improving the integral rigidity and precision of the device, and ensuring the guiding precision in the lifting process and the anti-vibration effect in the processing process.
Description
Technical Field
The invention relates to the technical field of precision machining, in particular to a high-rigidity lifting device for ultraprecision machining.
Background
With the continuous development of scientific technology, the application of ultra-precision subjects in the high-precision industry is more and more extensive, and the equipment mainly adopted in the prior art, such as an ultra-precision diamond lathe, an ultra-precision multi-shaft milling machine, an ultra-precision single-point fly-cutting machine tool and the like, relates to the problem of the height adjustment of the tool nose, wherein the precision of the height adjustment of the tool nose is required to be in a micron level, and meanwhile, due to turning, the rigidity of a tool rest is also required.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: in order to overcome the defects in the prior art, the invention provides the high-rigidity lifting device for the ultraprecise machining, which has rigidity and precision and ensures the guiding precision in the lifting process.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a high rigidity elevating gear is used in super precision finishing, has base and lift panel, the base on be equipped with inclined plane lower wedge up, lift panel bottom surface is fixed with inclined plane and lower wedge relative complex on the wedge, be fixed with first friction guide rail on the inclined plane of going up the wedge, the inclined plane and the first friction guide rail sliding fit of lower wedge are fixed with second friction guide rail on the base, lower wedge bottom surface and second friction guide rail sliding fit, the lower wedge internal rotation is equipped with trapezoidal lead screw, link firmly on the lower wedge with trapezoidal lead screw normal running fit's trapezoidal nut.
In order to realize accurate guiding of the lifting motion of the lifting panel, at least three guide seats are annularly fixed on the edge of the base, and a lifting guide pillar in sliding fit with an inner hole of each guide seat is fixed on the bottom surface of the lifting panel.
Furthermore, in order to improve the accuracy of the installation position of the first friction guide rail, two groups of first friction guide rails arranged at intervals are arranged between the inclined plane of the upper wedge block and the inclined plane of the lower wedge block, a first guide rail guide piece fixed on the lower wedge block is arranged between the inner sides of the first friction guide rails, first fixing plates are respectively fixed on two sides of the upper wedge block, and the bottom end of each first fixing plate is connected with a first copper pressing block which is pressed on the outer side surface of each first friction guide rail.
Similarly, in order to improve the mounting position precision of the second friction guide rail, the base is provided with two groups of second friction guide rails which are arranged at intervals, a second guide rail guide piece fixed on the base is arranged between the inner sides of the second friction guide rails, second fixing plates are respectively fixed on two sides of the lower wedge block, and the bottom end of each second fixing plate is connected with a second copper pressing block which is pressed on the outer side surface of the corresponding second friction guide rail.
In order to realize the rotation and installation of the trapezoidal screw rod, the end part of the trapezoidal screw rod, which extends out of the lower wedge-shaped block, is provided with a coupler which can be connected with a driving motor, and a base which is positioned at the extending end of the trapezoidal screw rod is provided with a bearing with a seat for supporting the trapezoidal screw rod.
The invention has the beneficial effects that: the lifting device has the advantages that the lower wedge block is translated to lift the upper wedge block and the lifting panel under the action of wedge motion generated by the upper wedge block, so that the height of the lifting device is adjusted, and the sliding friction motion is adopted to replace the rolling friction motion used by the traditional lifting device, so that the overall rigidity and precision of the lifting device are improved, and the guiding precision in the lifting process and the anti-vibration effect in the machining process are ensured.
Drawings
The invention is further illustrated with reference to the following figures and examples.
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic sectional structure view in the left-hand direction of fig. 1.
In the figure: 1. the lifting guide device comprises a base, 2, a lifting panel, 3, a lower wedge block, 4, an upper wedge block, 5, a first friction guide rail, 6, a second friction guide rail, 7, a trapezoidal screw rod, 8, a trapezoidal nut, 9, a guide seat, 10, a lifting guide column, 11, a first guide rail guide piece, 12, a first fixing plate, 13, a first copper pressing block, 14, a second guide rail guide piece, 15, a second fixing plate, 16, a second copper pressing block, 17, a coupler and 18, and a bearing with a seat.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
As shown in fig. 1 and 2, the high-rigidity lifting device for ultraprecision machining includes a base 1 and a lifting panel 2 located above the base 1. The edge of the base 1 is fixedly connected with three guide seats 9 made of brass in an annular mode through bolts, the bottom surface of the lifting panel 2 is fixedly connected with a lifting guide post 10 through bolts, the guide seats 9 are provided with guide inner holes with upward openings, the guide inner holes of the guide seats 9 and the lifting guide post 10 are in tolerance sliding fit, lubricating oil is added to the contact surfaces of the guide seats 9 and the lifting guide post to play a role in reducing friction,
the base 1 is provided with a lower wedge 3 with an upward inclined surface, and the bottom surface of the lifting panel 2 is fixed with an upper wedge 4 with an downward inclined surface opposite to the lower wedge 3.
Two groups of first friction guide rails 5 which are arranged at intervals are arranged between the inclined plane of the upper wedge-shaped block 4 and the inclined plane of the lower wedge-shaped block 3, the first friction guide rails 5 are fixed on the inclined plane of the upper wedge-shaped block 4, and the inclined plane of the lower wedge-shaped block 3 is in sliding fit with the first friction guide rails 5. First guide rail guide parts 11 fixed on the lower wedge blocks 3 are arranged between the inner sides of the first friction guide rails 5, the first guide rail guide parts 11 ensure the installation position accuracy of the first friction guide rails 5, first fixing plates 12 are fixed on two sides of the upper wedge blocks 4 respectively, and the bottom ends of the first fixing plates 12 are connected with first copper pressing blocks 13 pressing the outer side surfaces of the first friction guide rails 5.
The base 1 and the bottom surface of the lower wedge block 3 between be equipped with two sets of second friction guide rails 6 that the interval was arranged, second friction guide rails 6 are fixed at base 1, lower wedge block 3 bottom surface and second friction guide rails 6 sliding fit are equipped with second guide rail guide 14 of fixing on base 1 between the second friction guide rails 6 inboard, second guide rail guide 14 ensures the mounted position precision of a pair of second friction guide rails 6, be located and be fixed with second fixed plate 15 respectively in lower wedge block 3 both sides, second fixed plate 15 bottom is connected with the second copper briquetting 16 of top pressure at second friction guide rails 6 lateral surface.
The moving surfaces and the fixed surfaces of the first friction guide rail 5 and the second friction guide rail 6 are made of copper plates with high precision and low roughness, so that smooth and fluent sliding motion is guaranteed.
The lower wedge-shaped block 3 is internally provided with a trapezoidal lead screw 7 in a rotating manner, the lower wedge-shaped block 3 is fixedly connected with a trapezoidal nut 8 which is in running fit with the trapezoidal lead screw 7, the end part of the trapezoidal lead screw 7, which extends out of the lower wedge-shaped block 3, is provided with a shaft coupler 17 which can be connected with a motor, and a pedestal bearing 18 which is used for supporting the trapezoidal lead screw 7 is arranged on the pedestal 1 at the extending end of the trapezoidal lead screw 7.
Through the external motor drive trapezoidal lead screw 7 rotation of shaft coupling 17, trapezoidal nut 8 produces the linear motion of revolute pair and promotes down wedge 3 and translate on second friction guide 6 through the rotation of trapezoidal lead screw 7, and lower wedge 3 slides at first friction guide 5 again simultaneously to this has produced the lift effect under the wedge motion effect to last wedge 4, thereby jack-up goes up wedge 4 and lifting panel 2, realizes altitude mixture control. Because the lifting guide columns 10 and the lifting panel 2 do lifting movement together, the guide bases 9 play a role in accurate guiding, and the three groups of guide bases 9 and the lifting guide columns 10 are matched for guiding, so that the lifting rigidity and the precision of the device are ensured.
Because the three motions between the lifting guide pillar 10 and the guide seat 9, between the trapezoidal screw 7 and the trapezoidal nut 8, between the lower wedge block 3 and the first friction guide rail 5, between the lower wedge block 6 are all friction motions, the whole structure of the device has better rigidity, and the motions of the trapezoidal screw 7, the trapezoidal nut 8 and between the upper wedge block 9 all play the roles of speed reduction and amplification, so that the whole device has better precision.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (1)
1. The utility model provides a high rigidity elevating gear is used in ultra-precision machining, has base (1) and lift panel (2), characterized by: at least three guide seats (9) are annularly fixed on the edge of the base (1), and a lifting guide post (10) in sliding fit with an inner hole of each guide seat (9) is fixed on the bottom surface of the lifting panel (2);
the base (1) is provided with a lower wedge-shaped block (3) with an upward inclined surface, the bottom surface of the lifting panel (2) is fixedly provided with an upper wedge-shaped block (4) with an inclined surface matched with the lower wedge-shaped block (3) oppositely, the inclined surface of the upper wedge-shaped block (4) is fixedly provided with a first friction guide rail (5), the inclined surface of the lower wedge-shaped block (3) is in sliding fit with the first friction guide rail (5), the base (1) is fixedly provided with a second friction guide rail (6), and the bottom surface of the lower wedge-shaped block (3) is in sliding fit with the second friction guide rail (6);
two groups of first friction guide rails (5) which are arranged at intervals are arranged between the inclined surface of the upper wedge block (4) and the inclined surface of the lower wedge block (3), a first guide rail guide piece (11) fixed on the lower wedge block (3) is arranged between the inner sides of the first friction guide rails (5), first fixing plates (12) are respectively fixed on two sides of the upper wedge block (4), and the bottom end of each first fixing plate (12) is connected with a first copper pressing block (13) which is pressed on the outer side surface of each first friction guide rail (5);
two groups of second friction guide rails (6) which are arranged at intervals are arranged on the base (1), a second guide rail guide piece (14) fixed on the base (1) is arranged between the inner sides of the second friction guide rails (6), second fixing plates (15) are respectively fixed on two sides of the lower wedge block (3), and the bottom end of each second fixing plate (15) is connected with a second copper pressing block (16) which is pressed on the outer side surface of each second friction guide rail (6);
a trapezoidal screw rod (7) is rotationally arranged in the lower wedge-shaped block (3), and a trapezoidal nut (8) which is rotationally matched with the trapezoidal screw rod (7) is fixedly connected to the lower wedge-shaped block (3);
the end part of the trapezoidal lead screw (7) extending out of the lower wedge-shaped block (3) is provided with a coupler (17) which can be connected with a motor, and a base (1) positioned at the extending end of the trapezoidal lead screw (7) is provided with a bearing (18) with a seat for supporting the trapezoidal lead screw (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011336999.9A CN112453926B (en) | 2020-11-25 | 2020-11-25 | High-rigidity lifting device for ultraprecise machining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011336999.9A CN112453926B (en) | 2020-11-25 | 2020-11-25 | High-rigidity lifting device for ultraprecise machining |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112453926A CN112453926A (en) | 2021-03-09 |
| CN112453926B true CN112453926B (en) | 2022-05-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011336999.9A Active CN112453926B (en) | 2020-11-25 | 2020-11-25 | High-rigidity lifting device for ultraprecise machining |
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| CN (1) | CN112453926B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113603006B (en) * | 2021-08-10 | 2022-11-08 | 中国航发沈阳黎明航空发动机有限责任公司 | Mechanical structure bearing lifting platform and use method |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4233950C2 (en) * | 1992-10-08 | 1997-04-17 | Alzmetall Werkzeugmasch | Device for fine drilling depth adjustment for column drilling machines |
| CN203503632U (en) * | 2013-09-06 | 2014-03-26 | 苏州凯欧机械科技有限公司 | Wedge-structure precision positioning lifting platform on semiconductor processing equipment |
| CN104671144A (en) * | 2013-12-02 | 2015-06-03 | 湖北福田液压气动股份有限公司 | Motor-driven lifting platform installed on one side of standard rocker machine tool |
| CN210193303U (en) * | 2019-07-12 | 2020-03-27 | 德中(苏州)激光技术有限公司 | Automatic lifting device suitable for precision machining |
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