Automatic plane fine adjustment positioning device

Abstract

The utility model provides an automatic plane fine-tuning positioning device. The automatic plane fine-tuning positioning device comprises a positioning piece, the adjusting piece is used for fixing a to-be-adjusted product with an adjusting plane; the first matching piece is arranged on the positioning piece; the second matching piece is arranged on the adjusting piece; two ends of the elastic piece are respectively connected with the positioning piece and the adjusting piece; the first matching piece and the second matching piece abut against each other and are in static friction fit under the action of the elastic force of the elastic piece. The adjusting piece is configured to overcome static friction force between the first matching piece and the second matching piece under the action of external force, so that the adjusting piece generates displacement relative to the positioning piece to adjust the inclination of the adjusting plane; the first matching piece and the second matching piece are configured to enable the relative positions of the positioning piece and the adjusting piece to be fixed through static friction force when the adjusting plane reaches a preset inclination degree. The problems that an existing device is low in integration level, poor in operation convenience and sensitive to temperature changes are solved.

Description

Technical Field

[0001] This utility model relates to the field of precision positioning technology. More specifically, it relates to an automatic planar fine-tuning positioning device. Background Technology

[0002] Precision positioning technology is an indispensable core technology in modern manufacturing, assembly, and experimentation, especially in fields requiring high precision, such as optics, electronics, mechanical manufacturing, and micro / nanotechnology. Accurate positioning and adjustment are crucial for ensuring the accuracy of equipment operation and experimental results. Planar fine-tuning positioning devices, as an important branch of precision positioning technology, are widely used in various scenarios requiring minute position adjustments and positioning.

[0003] Currently, various devices exist for precision positioning, including manual screw fine-tuning devices and piezoelectric-driven fine-tuning devices. These devices largely rely on sophisticated and complex structures, control systems, or the special properties of materials to achieve minute displacements and precise positioning. However, existing planar fine-tuning positioning devices still face several major problems in practical applications: 1. Complex operation and high adjustment difficulty: Many existing fine-tuning devices require manual operation, and the accuracy during adjustment is difficult to control. For example, while manual screw fine-tuning devices can provide a relatively simple way to make precise adjustments, for high-precision equipment, manual operation is often not precise enough, leading to difficult, time-consuming, and inefficient adjustments; 2. Low integration: Existing fine-tuning devices are often designed independently, lacking modular integration, and cannot well meet the collaborative work requirements of complex systems. Especially in integrated systems, the interconnection, coordination, and spatial layout of multiple devices often lead to a decrease in efficiency and accuracy; 3. Difficult maintenance and high cost: Most fine-tuning devices rely on precision threads or special materials, resulting in high acquisition and manufacturing costs. For example, piezoelectric-driven fine-tuning devices can provide nanometer-level precision, but their operating range is small, they are sensitive to temperature changes, and the devices are difficult to maintain, making them unsuitable for long-term experimental operation. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides an automatic planar fine-tuning positioning device to solve the issues of low integration, poor ease of operation, and sensitivity to temperature changes in existing devices.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] This utility model provides an automatic planar fine-tuning positioning device, comprising:

[0007] Positioning element; adjusting element for fixing a product to be adjusted with an adjusting plane; first mating element disposed on the positioning element; second mating element disposed on the adjusting element; and elastic element connected at both ends to the positioning element and the adjusting element respectively;

[0008] The first mating part and the second mating part abut against each other and form a static friction fit under the elastic force of the elastic element;

[0009] The adjusting member is configured to overcome the static friction between the first mating member and the second mating member under the action of external force, so that the adjusting member is displaced relative to the positioning member to adjust the inclination of the adjusting plane;

[0010] The first and second mating parts are configured to fix the relative positions of the positioning part and the adjusting part by static friction when the adjusting plane reaches a predetermined inclination.

[0011] The preferred embodiment is that the number of the first mating parts and the second mating parts is at least three and they correspond one-to-one; the first mating parts are evenly arranged along the circumference of the positioning parts, and the second mating parts are evenly arranged along the circumference of the adjusting parts.

[0012] In a preferred embodiment, the axis of the first mating component is perpendicular to the axis of the second mating component, and the circumferential sidewall of the first mating component abuts against the circumferential sidewall of the second mating component.

[0013] In a preferred embodiment, the number of elastic elements is at least three, and the automatic planar fine-tuning positioning device further includes a first connecting element disposed on the positioning element and a second connecting element disposed on the adjusting element; one end of the elastic element is connected to the first connecting element and the other end is connected to the second connecting element.

[0014] In a preferred embodiment, the first connecting member includes a first structural part and a second structural part that are perpendicular to each other; the first structural part is fixed to the positioning member by a fixing bolt, and one end of the elastic member is fixed to the second structural part; the second connecting member is screwed onto the adjusting member in a direction perpendicular to the plane of the adjusting member.

[0015] In a preferred embodiment, both the first mating member and the second mating member have external threads at their ends; both the positioning member and the adjusting member have threaded holes with internal threads; the first mating member is screwed onto the positioning member; and the second mating member is screwed onto the adjusting member.

[0016] A preferred embodiment is that the adjusting member has a ring-shaped structure, and the outer edge of the lower ring surface of the adjusting member has a downwardly extending, discontinuous ring-shaped boss.

[0017] A preferred embodiment is that the elastic element is a spring.

[0018] In a preferred embodiment, both the positioning element and the adjusting element include mounting holes for connection with external mechanisms.

[0019] A preferred embodiment is that the first structural part includes two spaced-apart support arms, and the fixing bolt passes through the two support arms.

[0020] The beneficial effects of this utility model are as follows:

[0021] This invention, through the cooperation of a positioning component, an adjusting component, and a connecting structure connecting the positioning component and the adjusting component, is designed based on the principle of friction lock. This enables the automatic plane fine-tuning positioning device to automatically and precisely adjust the tilt of the adjusting plane. Compared to mechanical or electric fine-tuning devices, this invention requires no manual operation or power supply to achieve automatic plane positioning after fine-tuning, improving efficiency and ease of operation. The pre-loading effect of the elastic force of the elastic component ensures the stability of the adjusted plane over a long period. The adjustment of the elastic component and the locking by static friction improve the device's anti-interference capability, solving the position drift problem caused by environmental disturbances (temperature changes, etc.) in manual screw fine-tuning devices or piezoelectric drive fine-tuning devices. The device structure of this invention is simpler and more compact, with lower manufacturing costs, higher integration, and better cost-effectiveness. The positioning component, connecting structure, and adjusting component are all independent of each other, facilitating disassembly and installation. If any part malfunctions, only the damaged part needs to be replaced, without replacing the entire device, saving costs and improving efficiency. Attached Figure Description

[0022] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0023] Figure 1 This is a schematic diagram of the overall structure of the automatic planar fine-tuning positioning device of this utility model.

[0024] Figure 2 This is an assembly diagram of the positioning component, the first mating component, and the first connecting component of this utility model.

[0025] Figure 3 This is an assembly diagram of the adjusting component, the second mating component, and the second connecting component of this utility model.

[0026] Figure 4 This is a schematic diagram showing the cooperation between the positioning component and the driving mechanism of this utility model.

[0027] Figure 5 This is a schematic diagram showing the cooperation between the automatic planar fine-tuning positioning device, the drive mechanism, and the adjustment plane of this utility model.

[0028] Reference numerals: 1. Positioning component; 2. Second mating component; 3. Fixing bolt; 4. Adjusting component; 5. First mating component; 6. First connecting component; 61. First structural part; 62. Second structural part; 7. Second assembly hole; 8. Elastic component; 9. Second connecting component; 10. First assembly hole; 11. First threaded hole; 12. Third threaded hole; 13. Spring hanging hole; 14. Second threaded hole; 15. Fourth threaded hole; 16. Drive mechanism; 17. First mounting bolt; 18. Mounting screw; 19. Product to be adjusted; 20. Boss. Detailed Implementation

[0029] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present invention.

[0030] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0031] Technologies and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such technologies and equipment should be considered part of the specification.

[0032] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0033] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0034] To address the shortcomings of existing technologies, this utility model provides an automatic planar fine-tuning positioning device, combined with... Figures 1 to 5 As shown, the automatic planar fine-tuning positioning device specifically includes: a positioning element 1 for connection to the drive mechanism 16 to provide the power required for the automatic planar fine-tuning positioning device to move; an adjustment element 4 for fixing the product 19 to be adjusted, which has an adjustment plane, the adjustment plane of the product 19 being a plane away from the adjustment element 4, the adjustment plane being used to correspond and cooperate with a reference plane; and a connecting structure for connecting the positioning element 1 and the adjustment element 4. This automatic planar fine-tuning positioning device can adjust the adjustment plane to a state parallel to the reference plane. That is, the tilt state of the reference plane is the target state of the adjustment plane, and the tilt state of the adjustment plane can be selected according to actual needs.

[0035] Furthermore, the connection structure includes a first mating member 5 disposed on the positioning member 1, a second mating member 2 disposed on the adjusting member 4, and an elastic member 8 connected at both ends to the positioning member 1 and the adjusting member 4 respectively; the first mating member 5 and the second mating member 2 abut against each other and form a static friction fit under the elastic force of the elastic member 8, thereby fixing the relative position of the positioning member 1 and the adjusting member 4; the adjusting member 4 is configured to overcome the static friction between the first mating member 5 and the second mating member 2 under the action of external force, so that the adjusting member 4 is displaced relative to the positioning member 1 to adjust the inclination of the adjusting plane, that is, after the product 19 to be adjusted with the adjusting plane is fixed to the adjusting member 4, the inclination of the adjusting plane is adjusted so that the adjusting plane is adjusted to be parallel to the reference plane. The first mating member 5 and the second mating member 2 are configured to contact and fully fit the adjusting plane with the reference plane when the adjusting plane reaches a predetermined inclination, so that the adjusting plane is parallel to the reference plane, and the relative position of the positioning member 1, the adjusting member 4, and the adjusting plane is fixed by the static friction of the first mating member 5 and the second mating member 2. The automatic planar fine-tuning positioning device based on the friction lock principle provided by this utility model can achieve high-precision automatic fine-tuning of an object in a plane, and stabilize and fix the position of the target object after adjustment through the automatic friction lock mechanism, thereby maintaining the required precise positioning state for a long time. This device solves the problems of low integration, poor operation convenience, and excessive temperature sensitivity of existing devices, and meets the needs of automation, stability and efficiency in scenarios such as optical alignment and precision machining at low temperatures. The friction lock self-locking function of this utility model is achieved by generating stress through the elastic element 8, which tightens the first mating element 5 and the second mating element 2 to generate pressure. At this time, the contact surfaces of the first mating element 5 and the second mating element 2 generate static friction force to counteract the gravity of the adjusting element 4, thereby achieving the locking function and preventing displacement of the adjusting plane after the tilt adjustment is completed.

[0036] In the above embodiments, the number of the first mating parts 5 and the second mating parts 2 is at least three and corresponds one-to-one; the first mating parts 5 are evenly arranged around the circumference of the positioning part 1, and the second mating parts 2 are evenly arranged around the circumference of the adjusting part 4. The number of the elastic parts 8 is at least three and corresponds to the number of the first mating parts 5 and the second mating parts 2. The connecting structure also includes a first connecting part 6 disposed on the positioning part 1 and a second connecting part 9 disposed on the adjusting part 4; one end of the elastic part 8 is connected to the first connecting part 6, and the other end is connected to the second connecting part 9. The number of the first mating parts 5, the second mating parts 2, and the elastic parts 8 of the automatic planar fine-tuning positioning device of this utility model is not limited to three, and can be changed according to the required accuracy and load size. For example, in scenarios where the working device has a large load or high fine-tuning accuracy, the number of elastic parts 8 can be increased to form more friction lock structures with the corresponding number of first mating parts 5 and second mating parts 2, thereby improving the load capacity and self-locking capability. If it is necessary to increase the number of elastic parts 8, the external structure of the positioning part 1 and the adjusting part 4 can be changed according to the number of corresponding mating parts, and this utility model does not limit this.

[0037] More specifically, the first connecting member 6 includes a first structural part 61 and a second structural part 62 that are perpendicular to each other; the first structural part 61 is fixed to the positioning member 1 by screwing the fixing bolt 3 into the third threaded hole 12, and a hanging hole 13 is formed on the second structural part 62, and one end of the elastic member 8 is fixed to the second structural part 62 through the hanging hole 13; the second connecting member 9 is screwed onto the adjusting member 4 in a direction perpendicular to the plane of the adjusting member 4, and a fourth threaded hole 15 is formed on the adjusting member 4, and the second connecting member 9 is fixed to the upper surface of the adjusting member 4 by screwing into the fourth threaded hole 15.

[0038] Furthermore, both the first mating component 5 and the second mating component 2 are rod-shaped, with the axis of the first mating component 5 and the axis of the second mating component 2 perpendicular to each other, and the circumferential sidewall of the first mating component 5 abutting against the circumferential sidewall of the second mating component 2. Specifically, the first mating component 5 and the second mating component 2 can be pins. The perpendicularity of the first mating component 5 and the second mating component 2 ensures that the static friction forces are always coplanar, reducing the possibility of deformation and tilting, and enhancing the stability of the structure.

[0039] Regarding the assembly method of the first mating part 5 and the second mating part 2, in a specific embodiment, one end of both the first mating part 5 and the second mating part 2 is formed with external threads; both the positioning part 1 and the adjusting part 4 include threaded holes with internal threads; the first mating part 5 is screwed onto the positioning part 1 through a threaded connection at one end; the second mating part 2 is screwed onto the adjusting part 4 through a threaded connection at one end. The installation and disassembly of the first mating part 5 and the second mating part 2 can be achieved by screwing, which is convenient and quick. Specifically, the first mating part 5 is connected to the positioning part 1 through the first threaded hole 11, and the second mating part 2 is connected to the adjusting part 4 through the second threaded hole 14.

[0040] To reduce the overall weight of the device, in one specific embodiment, the adjusting member 4 has a ring-shaped structure. A downwardly extending, discontinuous ring-shaped boss 20 is formed on the outer edge of the lower ring surface of the adjusting member 4. This boss 20 abuts against the adjusting plane and ensures that the adjusting plane is parallel to the plane of the adjusting member 4. When the first mounting bolt 17 fixes the positioning member 1, the bolt head of the first mounting bolt 17 has a certain thickness, and the boss 20 provides installation space for the bolt head of the first mounting bolt 17. The adjusting member 4 is specifically made of stainless steel. The ring-shaped adjusting member 4, in conjunction with the boss 20, can further reduce the weight of the adjusting member while ensuring its own function.

[0041] In one specific embodiment, the elastic element 8 is specifically a spring, and the first structural part 61 includes two spaced-apart support arms, with a fixing bolt 3 passing through the two support arms. By adjusting the fixing position of the fixing bolt 3 between the two support arms, the magnitude of the elastic force on the positioning element 1 and the adjusting element 4 can be quickly adjusted.

[0042] In one embodiment, both the positioning member 1 and the adjusting member 4 include mounting holes for connection with external mechanisms. Specifically, the drive mechanism 16 uses a first mounting bolt 17 to engage with the first mounting hole 10 on the positioning member 1 to mount the positioning member 1 on different drive mechanisms, improving assembly convenience. Thanks to the ease of engagement between the first mounting bolt 17 and the first mounting hole 10, the device of this invention can be flexibly installed at any position on the drive end of the drive mechanism 16. The adjusting member 4 connects to the adjusting plane via a second mounting hole 7 and a mounting screw 18.

[0043] This utility model also provides a method of using the automatic planar fine-tuning positioning device as described above. The method includes the following steps: providing a product 19 with an adjustment plane and determining a reference plane; the reference plane can be a workbench surface. Providing an adjustment plane and a reference plane; fixing the product 19 with the adjustment plane on the adjustment member 4, ensuring that the adjustment plane is parallel to the plane where the adjustment member 4 is located; driving the positioning member 1 with external force to move the adjustment member 4 and the adjustment plane towards the reference plane; when the adjustment plane contacts the reference plane, driving the adjustment plane to continue moving towards the reference plane and overcoming the static friction between the first mating member 5 and the second mating member 2, causing the adjustment member 4 and the adjustment plane to displace relative to the positioning member 1 until the adjustment plane is completely in contact with the reference plane; driving the positioning member 1 with external force to move the adjusted plane away from the reference plane; after leaving the reference plane, the adjustment plane remains relatively parallel to the reference plane.

[0044] More specifically, the positioning component 1 is fixed on the moving platform (such as an optical displacement stage, linear guide, etc.), and the adjustment plane is installed below the boss of the adjustment component 4. The moving platform is moved towards the reference plane. When the adjustment plane contacts the reference plane, the adjustment plane fixed on the adjustment component 4 is slightly adjusted and moved by the second mating component 2 on the first mating component 5 until the adjustment plane is parallel and aligned with the reference plane. The adjustment plane is then moved, maintaining a relatively parallel state with the reference plane. This relatively parallel state is maintained throughout the movement, completing the precise fine-tuning and automatic positioning of the adjustment plane. Using the device provided by this utility model, by fixing the structure with the adjustment plane below the adjustment component 4 and ensuring that the adjustment plane is parallel to the plane of the adjustment component 4, the adjustment plane is driven to achieve parallel alignment with the reference plane through contact with the reference plane. After adjustment, the adjustment plane is self-locked by a friction lock to maintain its stability. This provides a novel adjustment method for maintaining the parallelism of two planes at micro- and nano-sized pitches.

[0045] In summary, this utility model, through the cooperation of a positioning component, an adjusting component, and a connecting structure connecting the positioning component and the adjusting component, and based on the friction lock principle, enables this automatic plane fine-tuning positioning device to automatically and accurately adjust the tilt of the adjusting plane. Compared to mechanical or electric fine-tuning devices, this utility model requires no manual operation or power supply to achieve automatic fine-tuning plane positioning, improving efficiency and ease of operation. The pre-loading effect of the elastic force of the elastic component ensures the stability of the adjusted plane over a long period. The adjustment of the elastic component and the locking of static friction improve the device's anti-interference capability, solving the position drift problem caused by environmental disturbances (temperature changes, etc.) in manual screw fine-tuning devices or piezoelectric driven fine-tuning devices. The device structure of this utility model is simpler and more compact, with lower manufacturing costs, higher integration, and better cost-effectiveness. The positioning component, connecting structure, and adjusting component are all independent of each other, facilitating disassembly and installation. If any part malfunctions, only the damaged part needs to be replaced, without replacing the entire device, saving costs and improving efficiency.

[0046] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. For those skilled in the art, other variations or modifications can be made based on the above description. It is impossible to exhaustively list all the implementation methods here. All obvious variations or modifications derived from the technical solutions of this utility model are still within the protection scope of this utility model.

Claims

1. An automatic planar fine-tuning positioning device, characterized in that, include: Positioning components; Adjustment parts used to fix the product to be adjusted, which has an adjustment plane; The first mating part is set on the positioning part; The second mating component is provided on the adjusting component; and the elastic component is connected to the positioning component and the adjusting component at both ends respectively; The first mating part and the second mating part abut against each other and form a static friction fit under the elastic force of the elastic element; The adjusting member is configured to overcome the static friction between the first mating member and the second mating member under the action of external force, so that the adjusting member is displaced relative to the positioning member to adjust the inclination of the adjusting plane; The first and second mating parts are configured to fix the relative positions of the positioning part and the adjusting part by static friction when the adjusting plane reaches a predetermined inclination.

2. The automatic planar fine-tuning positioning device according to claim 1, characterized in that, The number of the first mating parts and the second mating parts is at least three and they correspond one-to-one; the first mating parts are evenly arranged along the circumference of the positioning parts, and the second mating parts are evenly arranged along the circumference of the adjusting parts.

3. The automatic planar fine-tuning positioning device according to claim 1, characterized in that, The axis of the first mating part is perpendicular to the axis of the second mating part, and the circumferential sidewall of the first mating part abuts against the circumferential sidewall of the second mating part.

4. The automatic planar fine-tuning positioning device according to claim 2, characterized in that, The number of elastic elements is at least three, and the automatic planar fine-tuning positioning device further includes a first connecting element disposed on the positioning element and a second connecting element disposed on the adjusting element; one end of the elastic element is connected to the first connecting element and the other end is connected to the second connecting element.

5. The automatic planar fine-tuning positioning device according to claim 4, characterized in that, The first connecting member includes a first structural part and a second structural part that are perpendicular to each other; the first structural part is fixed to the positioning member by a fixing bolt, and one end of the elastic member is fixed to the second structural part; the second connecting member is screwed onto the adjusting member in a direction perpendicular to the plane of the adjusting member.

6. The automatic planar fine-tuning positioning device according to claim 1, characterized in that, Both the first and second mating parts have external threads at their ends; both the positioning and adjusting parts have threaded holes with internal threads; the first mating part is screwed onto the positioning part; and the second mating part is screwed onto the adjusting part.

7. The automatic planar fine-tuning positioning device according to claim 1, characterized in that, The adjusting member has a ring-shaped structure, and a protrusion with a discontinuous ring structure extending downward is formed on the outer edge of the lower ring surface of the adjusting member.

8. The automatic planar fine-tuning positioning device according to claim 1, characterized in that, The elastic element is a spring.

9. The automatic planar fine-tuning positioning device according to claim 1, characterized in that, Both the positioning element and the adjusting element include mounting holes for connecting to external mechanisms.

10. The automatic planar fine-tuning positioning device according to claim 5, characterized in that, The first structural part includes two spaced-apart support arms, and the fixing bolt passes through the two support arms.

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