CN115070409A - Four-degree-of-freedom adjusting mechanism - Google Patents
Four-degree-of-freedom adjusting mechanism Download PDFInfo
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- CN115070409A CN115070409A CN202210649947.XA CN202210649947A CN115070409A CN 115070409 A CN115070409 A CN 115070409A CN 202210649947 A CN202210649947 A CN 202210649947A CN 115070409 A CN115070409 A CN 115070409A
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- 230000007246 mechanism Effects 0.000 title claims abstract description 36
- 238000003825 pressing Methods 0.000 claims description 8
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- 238000000034 method Methods 0.000 description 5
- 230000008093 supporting effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
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- 230000000694 effects Effects 0.000 description 2
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- 238000005520 cutting process Methods 0.000 description 1
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- 238000007689 inspection Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P21/00—Machines for assembling a multiplicity of different parts to compose units, with or without preceding or subsequent working of such parts, e.g. with programme control
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Abstract
The invention relates to a four-degree-of-freedom adjusting mechanism which comprises a leveling upper plate, a leveling lower plate, a centering upper plate, a centering lower plate, a leveling assembly and a centering assembly, wherein the leveling upper plate, the leveling lower plate, the centering upper plate and the centering lower plate are sequentially stacked from top to bottom, the leveling upper plate is fixedly connected with the leveling lower plate, the upper end surface of the leveling upper plate is provided with a mounting hole for fixing a product, the leveling assembly is matched with the leveling upper plate and the leveling lower plate for adjusting a horizontal angle, and the centering assembly is matched with the centering upper plate and the centering lower plate for adjusting a position distance. The four-degree-of-freedom adjusting mechanism aims to solve the problem that the stability of the traditional angle adjusting mechanism is poor due to the influence of external force.
Description
Technical Field
The invention relates to the technical field of precision adjusting mechanisms, in particular to a four-degree-of-freedom adjusting mechanism.
Background
The small angle adjusting mechanism is used as a tool commonly used for machinery, is widely applied, and has a place for playing a corresponding role in the processes of workpiece processing, combination, assembly, debugging, inspection, measurement, transportation and the like due to the structural characteristics and functions of the small angle adjusting mechanism.
The traditional adjustment mode similar to a small angle adjustment mechanism applied in the industrial field is mainly in a jackscrew mode or an inclined plane sliding block mode, namely, the jackscrew bolt between an upper flat plate and a lower flat plate jacks or supports the other flat plate, or the height of the upper flat plate and the height of the lower flat plate are adjusted through sliding block displacement, so that the angle adjustment requirement is met. In the process, the former form is easy to cause part deformation due to small supporting points, so that the accuracy is influenced, and the latter form is easy to cause the relative position of the upper flat plate and the lower flat plate to change due to the influence of external force, so that the adjustment precision is influenced. In addition, the adjustment link is dependent on additional tools such as a wrench, a screwdriver and the like, so that inconvenience is brought, and user experience is poor.
Accordingly, the inventors provide a four degree of freedom adjustment mechanism.
Disclosure of Invention
(1) Technical problem to be solved
The embodiment of the invention provides a four-degree-of-freedom adjusting mechanism, which solves the technical problem of poor stability caused by external force influence of the traditional angle adjusting mechanism.
(2) Technical scheme
The invention provides a four-degree-of-freedom adjusting mechanism which comprises a leveling upper plate, a leveling lower plate, a centering upper plate, a centering lower plate, a leveling assembly and a centering assembly, wherein the leveling upper plate, the leveling lower plate, the centering upper plate and the centering lower plate are sequentially stacked from top to bottom, the leveling upper plate is fixedly connected with the leveling lower plate, the upper end surface of the leveling upper plate is provided with a mounting hole for fixing a product, the leveling assembly is matched with the leveling upper plate and the leveling lower plate for adjusting a horizontal angle, and the centering assembly is matched with the centering upper plate and the centering lower plate for adjusting a position distance.
Furthermore, the leveling component comprises a leveling ball pressing plate, a leveling ball, a leveling component base, a leveling component support, a leveling bolt and a leveling nut, the leveling ball is arranged in a counter bore of the leveling component base, the leveling ball pressing plate is pressed into the counter bore of the leveling component base, the leveling nut is placed under a cross bridge of the leveling component base, the leveling bolt penetrates through the leveling component base and is screwed into the leveling nut, and the leveling component support is placed under the cross bridge of the leveling component base.
Further, leveling subassembly base is for striding the bridge structure, and it has the circular slot of placing the leveling ball, the via hole of leveling bolt.
Furthermore, the leveling nut is in a truncated cone oblique cutting shape and is provided with a mounting hole matched with the leveling bolt.
Further, the aligning assembly comprises an aligning bolt, an aligning nut and a base outer ring, the aligning nut is placed in a counter bore of the base outer ring, the aligning lower plate is placed in the base outer ring, the aligning bolt penetrates through the base outer ring and is screwed into the aligning nut, and the base outer ring is surrounded on the outer wall of the aligning lower plate in the circumferential direction.
Furthermore, the aligning bolt is in a round table through-cut shape and is provided with a mounting hole matched with the leveling bolt.
Furthermore, the outer ring of the base is provided with a mounting hole connected with the aligning upper plate, a through hole used for mounting the aligning component and a groove matched with the tangent plane of the aligning nut.
Furthermore, the four-degree-of-freedom adjusting mechanism further comprises a ball retainer and aligning balls, the ball retainer is arranged between the aligning upper plate and the aligning lower plate, and the aligning balls are filled in the mounting holes of the ball retainer and are in rolling contact with the aligning upper plate and the aligning lower plate.
Furthermore, the side surface of the leveling lower plate is a large-curvature spherical outer envelope, and the lower end surface of the leveling lower plate is provided with a through hole connected with the centering upper plate.
Furthermore, the side of the aligning lower plate is a conical surface matched with the aligning component.
(3) Advantageous effects
In conclusion, the angle of the leveling upper plate is changed by adjusting the leveling component, and the relative position of the leveling upper plate is changed by adjusting the aligning component; the adjusting mechanism has the characteristics of high stability, and has the characteristics of simplicity in machining and assembly and convenience in operation.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments of the present invention will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a four-degree-of-freedom adjustment mechanism according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of a four degree-of-freedom adjustment mechanism provided in an embodiment of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2;
FIG. 4 is a schematic structural diagram of a leveling component in a four-degree-of-freedom adjustment mechanism according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a self-aligning assembly in a four-degree-of-freedom adjustment mechanism according to an embodiment of the present invention.
In the figure:
1-leveling an upper plate; 2-leveling the lower plate; 3-aligning upper plate; 4-aligning lower plate; 5-a ball cage; 6-self-aligning ball; 701-leveling a ball press plate; 702-leveling balls; 703-leveling component base; 704-leveling component holder; 705-leveling bolt; 706-leveling nuts; 801-self-aligning bolt; 802-self-aligning nut; 803-base outer ring.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following detailed description of the embodiments and the accompanying drawings are provided to illustrate the principles of the invention and are not intended to limit the scope of the invention, i.e., the invention is not limited to the embodiments described, but covers any modifications, alterations, and improvements in the parts, components, and connections without departing from the spirit of the invention.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
Fig. 1 is a schematic structural diagram of a four-degree-of-freedom adjusting mechanism according to an embodiment of the present invention, and as shown in fig. 1-2, the adjusting mechanism may include a leveling upper plate 1, a leveling lower plate 2, a centering upper plate 3, a centering lower plate 4, a leveling assembly, and a centering assembly, the leveling upper plate 1, the leveling lower plate 2, the centering upper plate 3, and the centering lower plate 4 are sequentially stacked from top to bottom, the leveling upper plate 1 is fixedly connected to the leveling lower plate 2, an upper end surface of the leveling upper plate 1 is provided with a mounting hole for fixing a product, the leveling assembly is used for adjusting a horizontal angle in cooperation with the leveling upper plate 1 and the leveling lower plate 2, and the centering assembly is used for adjusting a position distance in cooperation with the centering upper plate 3 and the centering lower plate 4.
In the above embodiment, the leveling bolt of one leveling assembly is rotated, the leveling nut is displaced along the direction of the leveling bolt, and the inclined surface of the leveling nut drives the leveling bracket to move up and down, so as to realize the inclination of the leveling upper plate 1 in the direction, and similarly realize the inclination of the other degree of freedom. When all leveling nuts are rotated simultaneously, the leveling upper plate 1 is moved up or down, which is a third degree of freedom.
The adjusting bolt of the aligning assembly is adjusted, so that the position of the aligning upper plate 1 relative to the aligning lower plate 4 in the horizontal direction can be changed, and the fourth degree of freedom of the product can be adjusted; the adjusting mechanism has the characteristics of high stability, and has the characteristics of simplicity in processing and assembly and convenience in operation.
As an alternative embodiment, as shown in fig. 3-4, the leveling assembly includes a leveling ball pressing plate 701, a leveling ball 702, a leveling assembly base 703, a leveling assembly bracket 704, a leveling bolt 705 and a leveling nut 706, the leveling ball 702 is disposed in a counterbore of the leveling assembly base 703, the leveling ball pressing plate 705 is pressed into a counterbore of the leveling assembly base 703, the leveling nut 706 is placed under a bridge of the leveling assembly base 703, the leveling bolt 705 is inserted through the leveling assembly base 703 and screwed into the leveling nut 706, and the leveling assembly bracket 704 is placed under a bridge of the leveling assembly base 703.
As an alternative embodiment, as shown in fig. 4, the leveling assembly base 703 is a bridge spanning structure having a circular groove for placing the leveling ball 702, and a via hole for the leveling bolt 705.
Specifically, the bridge structure can be convenient for with other part combinations, the via hole side has two anticreep pinhole.
As an alternative embodiment, the leveling nut 706 is a truncated cone with a beveled shape having a mounting hole adapted to the leveling bolt 705. The leveling nut 706 is positioned by the inclined plane, and the movement function of driving the leveling upper plate 1 by combining with the leveling bracket 704 is realized by the displacement of the inclined plane of the circular truncated cone.
As an alternative embodiment, as shown in fig. 5, the aligning assembly includes an aligning bolt 801, an aligning nut 802, and a base outer ring 803, the aligning nut 802 is placed in a counter bore of the base outer ring 803, the aligning lower plate 4 is placed in the base outer ring 803, the aligning bolt 801 is inserted into the base outer ring 803 and screwed into the aligning nut 802, and the base outer ring 803 is disposed around the outer wall of the aligning lower plate 4.
Specifically, the aligning nut 802 is placed in a square counterbore of the base outer ring 803, the aligning lower plate 4 is placed in the base outer ring 803, and the aligning bolt 801 is screwed into the aligning nut 802 through a through hole of the base outer ring 803. The ball retainer 5 is placed above the aligning lower plate 4, the holes on the ball retainer 5 are filled with aligning balls 6, the aligning upper plate 3 is placed on the ball retainer 5 and connected with the base outer ring 803 through bolts, and the aligning nut 802 can move up and down along the counter bore track of the base outer ring 803 by rotating the aligning bolt 801.
As an alternative embodiment, the self-aligning bolt 801 has a truncated cone shape and has a mounting hole adapted to the leveling bolt 705. The aligning bolt 801 is positioned by means of the inclined plane, and the function that the aligning lower plate 4 drives the leveling upper plate 1 to move is achieved through displacement of the inclined plane of the circular truncated cone.
As an optional embodiment, the base outer ring 803 is provided with a mounting hole connected with the aligning upper plate 3, a through hole for mounting the aligning assembly, and a groove matching with the tangent plane of the aligning nut 802.
As an optional implementation manner, the four-degree-of-freedom adjusting mechanism further includes a ball holder 5 and a plurality of aligning balls 6, the ball holder 5 is disposed between the aligning upper plate 3 and the aligning lower plate 4, and the plurality of aligning balls 6 are filled in the accommodating holes of the ball holder 5 and are in rolling contact with both the aligning upper plate 3 and the aligning lower plate 4.
Specifically, the ball retainer 5 and the aligning balls 6 are installed in a matched mode to achieve rolling contact between the aligning upper plate 3 and the aligning lower plate 4, and adjustment is flexible.
As an alternative embodiment, the leveling lower plate 2 has a lateral surface with a large-curvature spherical outer envelope, and the lower end surface thereof has a through hole connected with the leveling upper plate 3. The large-curvature spherical outer envelope structure can improve precision and is more suitable for flexible rolling of the leveling ball 702.
As an alternative embodiment, the side surface of the self-aligning lower plate 4 is a conical surface adapted to the self-aligning assembly. The conical surface is in line contact with the circular truncated cone-shaped measuring surface of the self-aligning nut, and the bearing capacity of the mechanism is improved.
The relative angle of the leveling upper plate 1 is changed by adjusting the screwing and the unscrewing of each leveling bolt 705, and the relative position of the leveling upper plate 1 is changed by adjusting the screwing and the unscrewing of each self-aligning bolt 801; the spherical cambered surface of the leveling lower plate 2 and the leveling balls 702 can be self-adaptive and slightly changed when the angles of the upper and lower flat plates are changed, and the supporting effect is constantly kept, and the cylindrical conical surface of the aligning lower plate 4 and the conical surface of the aligning nut 802 push or pull the aligning lower plate 4 and constantly keep the supporting effect when the aligning nut 802 moves up and down.
The assembling and using method of the four-degree-of-freedom adjusting mechanism provided by the embodiment of the invention specifically comprises the following steps:
step 7, placing the aligning upper plate on a ball retainer and supporting by an aligning ball;
step 8, fixing the aligning upper plate with the outer ring of the base through bolts;
step 9, placing the leveling ball into a counter bore of the leveling component base;
step 10, covering a leveling ball pressing plate above a leveling ball, and placing the leveling ball pressing plate into a leveling base to make the leveling base immovable;
step 11, placing a leveling nut below a middle span bridge of a leveling component base, wherein the side with the small diameter of the nut points to the direction of a leveling ball, and the longitudinal section of the side surface of the nut is attached to the bottom of the bridge;
step 12, penetrating a leveling bolt into a hole of a leveling component base from the outer side, and screwing the leveling bolt into a leveling nut;
step 13, placing two cylindrical pins into two pin holes above the leveling component base, and enabling the two cylindrical pins to be tangent to two circular undercut grooves of the leveling bolt, so that the leveling bolt cannot axially move;
step 14, placing the leveling component bracket below a bridge span of the leveling component base and placing the leveling component bracket in a reverse direction, namely that the mounting surface of the leveling component bracket faces upwards;
step 15, placing the three leveling components above the aligning upper plate and fixing the three leveling components with the aligning upper plate through bolts;
step 16, connecting the leveling upper plate with the leveling lower plate through bolts;
step 17, placing the combined leveling upper plate and leveling lower plate above the leveling component, supporting by means of balls of the leveling component, and aligning mounting hole positions below the leveling upper plate with the leveling component;
step 18, utilizing a gap between the leveling upper plate and the aligning upper plate, extending a wrench, and connecting the leveling component support and the leveling upper plate through bolts;
step 19, rotating the leveling bolt, wherein the leveling bolt does not axially move due to the limiting effect of the cylindrical pin, the leveling nut axially moves along the bolt along the lower part of the bridge span of the leveling component base, the leveling component support is subjected to up-and-down movement under the force applied by the leveling nut, the leveling component support drives the leveling upper plate to move, and the leveling upper plate inclines to play a leveling role;
step 20, rotating the aligning nut, wherein the aligning nut moves up and down in a square sinking groove in the outer ring of the base due to limited rotation of the aligning nut, and the aligning nut supports and levels the lower plate to enable the lower plate to move horizontally, so that an aligning effect is achieved;
and step 21, when the aligning nut is rotated, the opposite aligning nut is required to be rotated reversely.
It should be clear that the embodiments in this specification are described in a progressive manner, and the same or similar parts in the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. The present invention is not limited to the specific steps and structures described above and shown in the drawings. Also, a detailed description of known process techniques is omitted herein for the sake of brevity.
The above are merely examples of the present application and are not intended to limit the present application. Numerous modifications and variations could be made to the present disclosure by those skilled in the art without departing from the scope of the present disclosure. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (10)
1. A four-degree-of-freedom adjusting mechanism is characterized by comprising a leveling upper plate (1), a leveling lower plate (2), a centering upper plate (3), a centering lower plate (4), a leveling assembly and a centering assembly; wherein,
leveling upper plate (1), leveling hypoplastron (2), centering upper plate (3) reach centering hypoplastron (4) from top to bottom stacks in proper order, leveling upper plate (1) with leveling hypoplastron (2) fixed connection, the up end of leveling upper plate (1) has the mounting hole of fixed product, the leveling subassembly with leveling upper plate (1), leveling hypoplastron (2) cooperation is used for adjusting the level angle, the centering subassembly with centering upper plate (3) centering hypoplastron (4) cooperation is used for adjusting the position distance.
2. The four-degree-of-freedom adjusting mechanism according to claim 1, wherein the leveling component comprises a leveling ball pressing plate (701), a leveling ball (702), a leveling component base (703), a leveling component support (704), a leveling bolt (705) and a leveling nut (706), the leveling ball (702) is arranged in a counter bore of the leveling component base (703), the leveling ball pressing plate (705) is pressed into the counter bore of the leveling component base (703), the leveling nut (706) is placed under a bridge of the leveling component base (703), the leveling bolt (705) is arranged on the leveling component base (703) in a penetrating manner and is screwed into the leveling nut (706), and the leveling component support (704) is placed under the bridge of the leveling component base (703).
3. The four degree-of-freedom adjustment mechanism of claim 2, wherein the leveling component base (703) is a bridge spanning structure with a circular groove for placing the leveling ball (702), a via hole for the leveling bolt (705).
4. The four degree-of-freedom adjustment mechanism of claim 2, wherein the leveling nut (706) is truncated cone beveled with mounting holes that mate with the leveling bolt (705).
5. The four-degree-of-freedom adjusting mechanism according to claim 2, wherein the aligning assembly comprises an aligning bolt (801), an aligning nut (802) and a base outer ring (803), the aligning nut (802) is placed in a counter bore of the base outer ring (803), the aligning lower plate (4) is placed in the base outer ring (803), the aligning bolt (801) penetrates through the base outer ring (803) and is screwed into the aligning nut (802), and the base outer ring (803) is arranged around the outer wall circumference of the aligning lower plate (4).
6. The four-degree-of-freedom adjustment mechanism according to claim 5, wherein the self-aligning bolt (801) is in the shape of a truncated cone with a mounting hole adapted to the leveling bolt (705).
7. The four-degree-of-freedom adjusting mechanism according to claim 5, wherein the base outer ring (803) is provided with a mounting hole connected with the aligning upper plate (3), a through hole for mounting the aligning component and a groove matched with the tangent plane of the aligning nut (802).
8. The four-degree-of-freedom adjusting mechanism according to claim 1, further comprising a ball cage (5) and aligning balls (6), wherein the ball cage (5) is arranged between the aligning upper plate (3) and the aligning lower plate (4), and a plurality of aligning balls (6) are filled in the mounting holes of the ball cage (5) and are in rolling contact with both the aligning upper plate (3) and the aligning lower plate (4).
9. The four-degree-of-freedom adjustment mechanism according to claim 1, wherein the side surface of the leveling lower plate (2) is a large-curvature spherical outer envelope, and the lower end surface thereof is provided with a through hole connected with the leveling upper plate (3).
10. The four-degree-of-freedom adjustment mechanism according to claim 1, wherein the side surface of the self-aligning lower plate (4) is a conical surface adapted to the self-aligning component.
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| CN202210649947.XA CN115070409B (en) | 2022-06-10 | 2022-06-10 | Four-degree-of-freedom adjusting mechanism |
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| CN202210649947.XA CN115070409B (en) | 2022-06-10 | 2022-06-10 | Four-degree-of-freedom adjusting mechanism |
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| CN115070409B CN115070409B (en) | 2024-04-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115476010A (en) * | 2022-10-21 | 2022-12-16 | 中国航空制造技术研究院 | Electrolytic machining device and method for thrust nut oil film groove |
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| CN114264251A (en) * | 2021-12-31 | 2022-04-01 | 中原工学院 | Automatic aligning and leveling workbench and cross arm radial measurement size calibration method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115476010A (en) * | 2022-10-21 | 2022-12-16 | 中国航空制造技术研究院 | Electrolytic machining device and method for thrust nut oil film groove |
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