A high-precision repeat positioning mechanism

Abstract

The utility model relates to a high-precision repeat positioning mechanism relates to mechanical technical field. To solve the problem of the existing mechanical positioning mechanism is not suitable for quick repeat installation positioning, thereby due to the repeated dismounting leads to the positioning accuracy is lower, can not satisfy the high-precision repeat positioning requirement simultaneously, when needing to remove the platform to be positioned to carry out other work, only need to loosen the positioning cone connecting bolt, remove the platform to be positioned and the positioning cone concave body etc. connected assembly simultaneously, after completing, only need to make the positioning cone concave body on the platform to be positioned with the positioning cone convex body on the installation base platform align and fall down can complete repeat high-precision positioning, the positioning mechanism of this structure realizes the function of quick dismounting repeat positioning, and will not due to the repeated dismounting and influence the precision of positioning, thereby improve the precision of positioning. The utility model is suitable for mechanical structure positioning technical field.

Description

Technical Field

[0001] This invention relates to the field of mechanical technology, and more specifically to a high-precision repeatable positioning mechanism. Background Technology

[0002] Currently, the positioning structure in mechanical structures is generally achieved by using positioning pins, wedges, or ferrules. During assembly, interference fits are used. Because of the interference fit, disassembly is relatively difficult, and the positioning holes of the parts are prone to wear during disassembly. As a result, repeated disassembly leads to low positioning accuracy.

[0003] In summary, existing mechanical positioning mechanisms are not suitable for rapid and repeated installation and positioning, resulting in low positioning accuracy due to repeated disassembly and thus failing to meet the requirements for high-precision repeatable positioning. Summary of the Invention

[0004] This invention addresses the problem that existing mechanical positioning mechanisms are unsuitable for rapid and repeated installation and positioning, resulting in low positioning accuracy due to repeated disassembly and thus failing to meet the requirements for high-precision repeated positioning. Therefore, this invention proposes a high-precision repeated positioning mechanism.

[0005] The present invention provides a high-precision repeatable positioning mechanism, which comprises an installation base platform 1, a positioning adapter plate 2, a positioning adapter plate connecting bolt assembly 3, a positioning pin 4, a positioning cone protrusion 5, a protrusion gasket 6, a positioning gasket 7, a protrusion fixing bolt 8, a protrusion positioning plate 9, a positioning platform 11, a concave gasket 12, a positioning cone concave 13, a concave fixing bolt 14, a concave positioning plate 15, and a positioning cone connecting bolt 16.

[0006] Multiple through holes are uniformly machined along the circumference of the upper surface of the mounting base platform 1, and multiple through holes are also uniformly machined along the circumference of the upper surface of the positioning adapter plate 2. Each through hole on the mounting base platform 1 corresponds to a through hole on the positioning adapter plate 2, and the through holes on the mounting base platform 1 are fixedly connected to the corresponding through holes on the positioning adapter plate 2 through the positioning adapter plate connecting bolt assembly 3. A through hole is machined at the center of the upper surfaces of both the mounting base platform 1 and the positioning adapter plate 2. The bottom of the positioning pin 4 passes through the through hole at the center of the upper surface of the mounting base platform 1 and is then inserted into the upper surface of the positioning adapter plate 2. Inside the through hole at the center of the surface, the upper surface of the positioning adapter plate 2 is uniformly machined with multiple positioning cone holes along the circumferential edge. Each positioning cone hole on the positioning adapter plate 2 has a convex washer 6 at its top. Inside each positioning cone hole is a positioning cone protrusion 5. A positioning shoulder is machined on the positioning cone protrusion 5, and the lower surface of the positioning shoulder contacts the upper surface of the convex washer 6. A positioning washer 7 is fitted onto the positioning cone protrusion 5, and the lower surface of the positioning washer 7 contacts the upper surface of the positioning shoulder of the positioning cone protrusion 5. At the bottom of each positioning cone hole on the positioning adapter plate 2 is a protruding... The positioning plate 9 and the positioning adapter plate 2 are fixedly connected by the positioning cone protrusion 5, the protrusion gasket 6, the positioning gasket 7 and the protrusion positioning plate 9 at each positioning cone hole by the protrusion fixing bolt 8. The upper surface of the positioning platform 11 is evenly machined with multiple positioning cone holes along the circumferential edge. Each positioning cone hole on the positioning platform 11 is provided with a concave gasket 12 at the bottom end. Each positioning cone hole on the positioning platform 11 is provided with a positioning cone concave 13 inside. The bottom outer surface of the positioning cone concave 13 is machined with a positioning shoulder, and the upper surface of the positioning shoulder on the positioning cone concave 13 is connected to the concave gasket. The lower surface of the plate 12 is in contact with the top of each positioning cone hole on the positioning platform 11. A concave positioning plate 15 is provided at the top of each positioning cone hole on the positioning platform 11. The concave pad 12, the positioning cone concave 13 and the concave positioning plate 15 at each positioning cone hole on the positioning platform 11 are fixedly connected by the concave fixing bolt 14. The positioning platform 11 is provided directly above the positioning adapter plate 2. The bottom groove of each positioning cone concave 13 on the positioning platform 11 is engaged with the top protrusion of each positioning cone protrusion 5 on the positioning adapter plate 2. The positioning cone protrusion 5 is fixedly connected to the positioning cone concave 13 by the positioning cone connecting bolt 16.

[0007] Furthermore, the upper surfaces of the positioning shoulder, protrusion shim 6, positioning shim 7, and protrusion positioning plate 9 on the positioning cone protrusion 5 are each uniformly machined with two positioning holes along the circumferential direction.

[0008] Furthermore, the positioning shoulder, protrusion shim 6, positioning shim 7 on the positioning cone protrusion 5 and the positioning hole on the protrusion positioning plate 9 are fixedly connected by the protrusion positioning pin 10.

[0009] Furthermore, the diameter of the through hole on the upper surface of the mounting base platform 1 is smaller than the diameter of the through hole on the upper surface of the positioning adapter plate 2.

[0010] Furthermore, the upper surface of the platform 11 to be positioned is uniformly machined with multiple through holes along the circumferential direction in the middle.

[0011] Furthermore, the diameter of the through hole on the upper surface of the positioning adapter plate 2 is smaller than the diameter of the through hole on the upper surface of the platform to be positioned 11.

[0012] Furthermore, a through hole is machined at the center of the upper surface of the platform 11 to be positioned;

[0013] Furthermore, the bottom groove of the positioning cone recess 13 is a conical groove, and the top protrusion of the positioning cone protrusion 5 is a conical protrusion.

[0014] Furthermore, during use, multiple through holes are uniformly machined along the circumference of the upper surface of the mounting base platform 1, and multiple through holes are uniformly machined along the circumference of the upper surface of the positioning adapter plate 2. Each through hole on the mounting base platform 1 corresponds to a through hole on the positioning adapter plate 2, which facilitates the adjustment of the position of the positioning adapter plate 2. The positioning adapter plate 2 and the mounting base platform 1 are connected by the positioning adapter plate connecting bolt assembly 3. After confirming the position of the positioning adapter plate 2, the positioning pin 4 is installed to ensure the accurate positioning of the mounting base platform 1 and the positioning adapter plate 2.

[0015] The same number of positioning cone holes as the positioning cone protrusions 5 are uniformly machined on the positioning adapter plate 2. The protrusion gaskets 6, positioning cone protrusions 5, and positioning gaskets 7 are arranged sequentially on the positioning cone holes. The protrusion positioning plate 9, positioning adapter plate 2, protrusion gaskets 6, positioning cone protrusions 5, and positioning gaskets 7 are connected together from below using protrusion fixing bolts 8. Protrusion positioning pins 10, penetrating the above structure, are then installed to accurately determine the position. The positioning cone protrusions 5 can be radially positioned by the flange portion and the protrusion positioning plate 9. Correspondingly, on the positioning platform 11... Positioning concave concave holes are machined, and the concave gasket 12 and positioning concave body 13 are sequentially inserted into the positioning concave concave concave holes from below. The concave positioning plate 15, the platform to be positioned 11, the concave gasket 12 and the positioning concave body 13 are connected together with the concave fixing bolt 14. Then, the above components are placed on the previously installed positioning concave protrusion 5 component. Precise positioning is completed by the conical fit between the positioning concave body 13 and the positioning concave protrusion 5. The two parts of the components are fixed together with the positioning concave connecting bolt 16 to complete the entire installation process.

[0016] When the platform to be positioned needs to be moved away for other work, simply loosen the positioning cone connecting bolt 16, and move the platform to be positioned 11 and the positioning cone recess 13 and other connected components away at the same time. After completion, simply align the positioning cone recess 13 on the platform to be positioned with the positioning cone protrusion 5 on the mounting base platform 1 and lower it to complete the repeatable high-precision positioning.

[0017] Compared with the prior art, the present invention has the following advantages:

[0018] This invention overcomes the shortcomings of existing technologies by uniformly machining positioning cone holes, the same number as the positioning cone protrusions, on a positioning adapter plate. The protrusion gasket, positioning cone protrusion, and positioning gasket are sequentially arranged on the positioning cone holes. Protrusion fixing bolts are used to connect the protrusion positioning plate, positioning adapter plate, protrusion gasket, positioning cone protrusion, and positioning gasket together from below, and protrusion positioning pins penetrating the above structure are driven in to accurately determine the position. The positioning cone protrusion can be radially positioned by the flange portion and the protrusion positioning plate together. Positioning concave cone holes are machined at corresponding positions on the platform to be positioned. Concave gaskets and positioning cone concave bodies are sequentially inserted into the positioning concave cone holes from below. Concave fixing bolts are used to connect the concave positioning plate, the platform to be positioned, the concave gasket, and the positioning cone concave body together. The aforementioned components are then placed onto the pre-installed positioning cone protrusion component. Precise positioning is achieved through the conical fit between the positioning cone concave and the positioning cone protrusion. The two components are then fixed together with the positioning cone connecting bolts, completing the entire installation process. When the platform to be positioned needs to be moved for other work, simply loosen the positioning cone connecting bolts and remove the platform to be positioned and the connecting components such as the positioning cone concave simultaneously. After completion, simply align the positioning cone concave on the platform to be positioned with the positioning cone protrusion on the installation base platform and drop it down to complete repeated high-precision positioning. This positioning mechanism achieves the function of quick disassembly and reassembly for repeated positioning, and the positioning accuracy is not affected by repeated disassembly and assembly, thereby improving the positioning accuracy. Attached Figure Description

[0019] Figure 1 This is a front sectional view of a high-precision repeatable positioning mechanism according to the present invention. Detailed Implementation

[0020] Specific implementation method one: Combining Figure 1 This embodiment describes a high-precision repeatable positioning mechanism, which comprises an installation base platform 1, a positioning adapter plate 2, a positioning adapter plate connecting bolt assembly 3, a positioning pin 4, a positioning cone protrusion 5, a protrusion gasket 6, a positioning gasket 7, a protrusion fixing bolt 8, a protrusion positioning plate 9, a positioning platform 11, a concave gasket 12, a positioning cone concave 13, a concave fixing bolt 14, a concave positioning plate 15, and a positioning cone connecting bolt 16.

[0021] Multiple through holes are uniformly machined along the circumference of the upper surface of the mounting base platform 1, and multiple through holes are also uniformly machined along the circumference of the upper surface of the positioning adapter plate 2. Each through hole on the mounting base platform 1 corresponds to a through hole on the positioning adapter plate 2, and the through holes on the mounting base platform 1 are fixedly connected to the corresponding through holes on the positioning adapter plate 2 through the positioning adapter plate connecting bolt assembly 3. A through hole is machined at the center of the upper surfaces of both the mounting base platform 1 and the positioning adapter plate 2. The bottom of the positioning pin 4 passes through the through hole at the center of the upper surface of the mounting base platform 1 and is then inserted into the upper surface of the positioning adapter plate 2. Inside the through hole at the center of the surface, the upper surface of the positioning adapter plate 2 is uniformly machined with multiple positioning cone holes along the circumferential edge. Each positioning cone hole on the positioning adapter plate 2 has a convex washer 6 at its top. Inside each positioning cone hole is a positioning cone protrusion 5. A positioning shoulder is machined on the positioning cone protrusion 5, and the lower surface of the positioning shoulder contacts the upper surface of the convex washer 6. A positioning washer 7 is fitted onto the positioning cone protrusion 5, and the lower surface of the positioning washer 7 contacts the upper surface of the positioning shoulder of the positioning cone protrusion 5. At the bottom of each positioning cone hole on the positioning adapter plate 2 is a protruding... The positioning plate 9 and the positioning adapter plate 2 are fixedly connected by the positioning cone protrusion 5, the protrusion gasket 6, the positioning gasket 7 and the protrusion positioning plate 9 at each positioning cone hole by the protrusion fixing bolt 8. The upper surface of the positioning platform 11 is evenly machined with multiple positioning cone holes along the circumferential edge. Each positioning cone hole on the positioning platform 11 is provided with a concave gasket 12 at the bottom end. Each positioning cone hole on the positioning platform 11 is provided with a positioning cone concave 13 inside. The bottom outer surface of the positioning cone concave 13 is machined with a positioning shoulder, and the upper surface of the positioning shoulder on the positioning cone concave 13 is connected to the concave gasket. The lower surface of the plate 12 is in contact with the top of each positioning cone hole on the positioning platform 11. A concave positioning plate 15 is provided at the top of each positioning cone hole on the positioning platform 11. The concave pad 12, the positioning cone concave 13 and the concave positioning plate 15 at each positioning cone hole on the positioning platform 11 are fixedly connected by the concave fixing bolt 14. The positioning platform 11 is provided directly above the positioning adapter plate 2. The bottom groove of each positioning cone concave 13 on the positioning platform 11 is engaged with the top protrusion of each positioning cone protrusion 5 on the positioning adapter plate 2. The positioning cone protrusion 5 is fixedly connected to the positioning cone concave 13 by the positioning cone connecting bolt 16.

[0022] In this specific embodiment, multiple through holes are uniformly machined along the circumferential direction on the middle of the upper surface of the mounting base platform 1, and multiple through holes are uniformly machined along the circumferential direction on the middle of the upper surface of the positioning adapter plate 2. Each through hole on the mounting base platform 1 corresponds to a through hole on the positioning adapter plate 2, which facilitates the adjustment of the position of the positioning adapter plate 2. The positioning adapter plate 2 and the mounting base platform 1 are connected by the positioning adapter plate connecting bolt assembly 3. After confirming the position of the positioning adapter plate 2, the positioning pin 4 is installed to ensure the accurate positioning of the mounting base platform 1 and the positioning adapter plate 2.

[0023] The same number of positioning cone holes as the positioning cone protrusions 5 are uniformly machined on the positioning adapter plate 2. The protrusion gaskets 6, positioning cone protrusions 5, and positioning gaskets 7 are arranged sequentially on the positioning cone holes. The protrusion positioning plate 9, positioning adapter plate 2, protrusion gaskets 6, positioning cone protrusions 5, and positioning gaskets 7 are connected together from below using protrusion fixing bolts 8. Protrusion positioning pins 10, penetrating the above structure, are then installed to accurately determine the position. The positioning cone protrusions 5 can be radially positioned by the flange portion and the protrusion positioning plate 9. Correspondingly, on the positioning platform 11... Positioning concave concave holes are machined, and the concave gasket 12 and positioning concave body 13 are sequentially inserted into the positioning concave concave concave holes from below. The concave positioning plate 15, the platform to be positioned 11, the concave gasket 12 and the positioning concave body 13 are connected together with the concave fixing bolt 14. Then, the above components are placed on the previously installed positioning concave protrusion 5 component. Precise positioning is completed by the conical fit between the positioning concave body 13 and the positioning concave protrusion 5. The two parts of the components are fixed together with the positioning concave connecting bolt 16 to complete the entire installation process.

[0024] When the platform to be positioned needs to be moved away for other work, simply loosen the positioning cone connecting bolt 16, and move the platform to be positioned 11 and the positioning cone recess 13 and other connected components away at the same time. After completion, simply align the positioning cone recess 13 on the platform to be positioned with the positioning cone protrusion 5 on the mounting base platform 1 and lower it to complete the repeatable high-precision positioning.

[0025] Specific Implementation Method Two: Combining Figure 1 This embodiment further defines the positioning mechanism described in Specific Embodiment 1. In this embodiment, a high-precision repeatable positioning mechanism is provided, wherein the upper surfaces of the positioning cone protrusion 5, the positioning shoulder, the protrusion pad 6, the positioning pad 7, and the protrusion positioning plate 9 are each uniformly machined with two positioning holes along the circumferential direction.

[0026] Specific implementation method three: Combining Figure 1 This embodiment further defines the positioning mechanism described in Specific Embodiment Two. In this embodiment, a high-precision repeatable positioning mechanism is provided, wherein the positioning shoulder on the positioning cone protrusion 5, the protrusion pad 6, the positioning pad 7, and the positioning hole on the protrusion positioning plate 9 are fixedly connected by the protrusion positioning pin 10.

[0027] In this specific embodiment, the positioning shoulder on the positioning cone protrusion 5, the protrusion gasket 6, the positioning gasket 7, and the positioning hole on the protrusion positioning plate 9 are fixedly connected by the protrusion positioning pin 10 to ensure that the positioning cone protrusion 5 and the positioning cone hole on the positioning adapter plate 2 are coaxially positioned.

[0028] Specific implementation method four: Combination Figure 1This embodiment further defines the positioning mechanism described in Specific Embodiment 1. In this embodiment, the diameter of the through hole on the upper surface of the mounting base platform 1 is smaller than the diameter of the through hole on the upper surface of the positioning adapter plate 2.

[0029] Specific Implementation Method Five: Combining Figure 1 This embodiment further defines the positioning mechanism described in Specific Embodiment 1. In this embodiment, a high-precision repeatable positioning mechanism is provided, wherein multiple through holes are uniformly machined along the circumferential direction on the middle of the upper surface of the platform 11 to be positioned.

[0030] Specific Implementation Method Six: Combination Figure 1 This embodiment further defines the positioning mechanism described in Specific Embodiment Five. In this embodiment, the diameter of the through hole on the upper surface of the positioning adapter plate 2 is smaller than the diameter of the through hole on the upper surface of the platform 11 to be positioned.

[0031] Specific implementation method seven: Combining Figure 1 This embodiment further defines the positioning mechanism described in Specific Embodiment Five. In this embodiment, a high-precision repeatable positioning mechanism is provided, wherein a through hole is machined at the center of the upper surface of the platform 11 to be positioned.

[0032] Specific implementation method eight: Combination Figure 1 This embodiment further defines the positioning mechanism described in Specific Embodiment 1. In this embodiment, a high-precision repeatable positioning mechanism is provided, wherein the bottom groove of the positioning cone concave body 13 is a conical groove, and the top protrusion of the positioning cone convex body 5 is a conical protrusion.

[0033] Working principle

[0034] In use, multiple through holes are uniformly machined along the circumference of the upper surface of the mounting base platform 1, and multiple through holes are uniformly machined along the circumference of the upper surface of the positioning adapter plate 2. Each through hole on the mounting base platform 1 corresponds to a through hole on the positioning adapter plate 2, which facilitates the adjustment of the position of the positioning adapter plate 2. The positioning adapter plate 2 and the mounting base platform 1 are connected by the positioning adapter plate connecting bolt assembly 3. After confirming the position of the positioning adapter plate 2, the positioning pin 4 is installed to ensure the accurate positioning of the mounting base platform 1 and the positioning adapter plate 2.

[0035] The same number of positioning cone holes as the positioning cone protrusions 5 are uniformly machined on the positioning adapter plate 2. The protrusion gaskets 6, positioning cone protrusions 5, and positioning gaskets 7 are arranged sequentially on the positioning cone holes. The protrusion positioning plate 9, positioning adapter plate 2, protrusion gaskets 6, positioning cone protrusions 5, and positioning gaskets 7 are connected together from below using protrusion fixing bolts 8. Protrusion positioning pins 10, penetrating the above structure, are then installed to accurately determine the position. The positioning cone protrusions 5 can be radially positioned by the flange portion and the protrusion positioning plate 9. Correspondingly, on the positioning platform 11... Positioning concave concave holes are machined, and the concave gasket 12 and positioning concave body 13 are sequentially inserted into the positioning concave concave concave holes from below. The concave positioning plate 15, the platform to be positioned 11, the concave gasket 12 and the positioning concave body 13 are connected together with the concave fixing bolt 14. Then, the above components are placed on the previously installed positioning concave protrusion 5 component. Precise positioning is completed by the conical fit between the positioning concave body 13 and the positioning concave protrusion 5. The two parts of the components are fixed together with the positioning concave connecting bolt 16 to complete the entire installation process.

[0036] When the platform to be positioned needs to be moved away for other work, simply loosen the positioning cone connecting bolt 16, and move the platform to be positioned 11 and the positioning cone recess 13 and other connected components away at the same time. After completion, simply align the positioning cone recess 13 on the platform to be positioned with the positioning cone protrusion 5 on the mounting base platform 1 and lower it to complete the repeatable high-precision positioning.

Claims

1. A high-precision repeatable positioning mechanism, characterized in that: It includes an installation base platform (1), a positioning adapter plate (2), a positioning adapter plate connecting bolt assembly (3), a positioning pin (4), a positioning cone protrusion (5), a protrusion gasket (6), a positioning gasket (7), a protrusion fixing bolt (8), a protrusion positioning plate (9), a platform to be positioned (11), a concave gasket (12), a positioning cone concave (13), a concave fixing bolt (14), a concave positioning plate (15), and a positioning cone connecting bolt (16). Multiple through holes are uniformly machined along the circumferential direction on the middle of the upper surface of the mounting base platform (1), and multiple through holes are uniformly machined along the circumferential direction on the middle of the upper surface of the positioning adapter plate (2). Each through hole on the mounting base platform (1) corresponds to a through hole on the positioning adapter plate (2), and the through holes on the mounting base platform (1) are fixedly connected to the corresponding through holes on the positioning adapter plate (2) through the positioning adapter plate connecting bolt assembly (3). Through holes are machined at the center of the upper surfaces of the mounting base platform (1) and the positioning adapter plate (2). After the bottom of the positioning pin (4) passes through the through hole at the center of the upper surface of the mounting base platform (1), it is inserted into the upper surface of the positioning adapter plate (2). Inside the through hole at the center, the upper surface of the positioning adapter plate (2) is uniformly machined with multiple positioning cone holes along the circumferential edge. Each positioning cone hole on the positioning adapter plate (2) has a convex pad (6) at its top. Inside each positioning cone hole, there is a positioning cone protrusion (5). A positioning shoulder is machined on the positioning cone protrusion (5), and the lower surface of the positioning shoulder contacts the upper surface of the convex pad (6). A positioning pad (7) is fitted on the positioning cone protrusion (5), and the lower surface of the positioning pad (7) contacts the upper surface of the positioning shoulder of the positioning cone protrusion (5). A convex positioning plate (9) is provided at the bottom of each positioning cone hole on the positioning adapter plate (2). Furthermore, the positioning cone protrusion (5), protrusion gasket (6), positioning gasket (7), and protrusion positioning plate (9) at each positioning cone hole on the positioning adapter plate (2) are fixedly connected by protrusion fixing bolts (8). Multiple positioning cone holes are uniformly machined along the circumferential edge on the upper surface of the positioning platform (11). A concave gasket (12) is provided at the bottom end of each positioning cone hole on the positioning platform (11). A positioning cone concave (13) is provided inside each positioning cone hole on the positioning platform (11). A positioning shoulder is machined on the outer surface of the bottom end of the positioning cone concave (13), and the upper surface of the positioning shoulder on the positioning cone concave (13) is connected to the lower surface of the concave gasket (12). The surface is in contact. Each positioning cone hole on the platform to be positioned (11) has a concave positioning plate (15) at the top. The concave gasket (12), the positioning cone concave (13) and the concave positioning plate (15) at each positioning cone hole on the platform to be positioned (11) are fixedly connected by the concave fixing bolt (14). The platform to be positioned (11) is located directly above the positioning adapter plate (2). The bottom groove of each positioning cone concave (13) on the platform to be positioned (11) is connected to the top protrusion of each positioning cone protrusion (5) on the positioning adapter plate (2). The positioning cone protrusion (5) is fixedly connected to the positioning cone concave (13) by the positioning cone connecting bolt (16). The positioning cone protrusion (5), the positioning shoulder, the protrusion shim (6), the positioning shim (7) and the upper surface of the protrusion positioning plate (9) are each uniformly machined with two positioning holes along the circumferential direction. The positioning shoulder on the positioning cone protrusion (5), the protrusion gasket (6), the positioning gasket (7), and the positioning hole on the protrusion positioning plate (9) are fixedly connected by the protrusion positioning pin (10).

2. The high-precision repeatable positioning mechanism according to claim 1, characterized in that: The diameter of the through hole on the upper surface of the mounting base platform (1) is smaller than the diameter of the through hole on the upper surface of the positioning adapter plate (2).

3. The high-precision repeatable positioning mechanism according to claim 1, characterized in that: The upper surface of the positioning platform (11) has multiple through holes uniformly machined along the circumferential direction in the middle.

4. The high-precision repeatable positioning mechanism according to claim 3, characterized in that: The diameter of the through hole on the upper surface of the positioning adapter plate (2) is smaller than the diameter of the through hole on the upper surface of the positioning platform (11).

5. A high-precision repeatable positioning mechanism according to claim 3, characterized in that: A through hole is machined at the center of the upper surface of the platform to be positioned (11).

6. The high-precision repeatable positioning mechanism according to claim 1, characterized in that: The bottom groove of the positioning cone recess (13) is a cone-shaped groove, and the top protrusion of the positioning cone protrusion (5) is a cone-shaped protrusion.

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