Positioning tool for detecting conical mirror

Abstract

The utility model discloses a kind of positioning tool for taper mirror detection, positioning base middle end is fixedly installed with positioning ring, and the bottom end of positioning ring is conical, air bag is fixedly installed in the inner wall of positioning ring, the outer surface of positioning ring is communicated with connecting pipe, connecting pipe is through positioning base inside, its one end is sealed with air bag Communication, the other end is sealed with the connecting port of the outside of positioning base Communication;The utility model passes through adopting the double positioning mechanism of elastic support in air bag and the embrace clamping of clamping block outside, the elastic clamping of air bag is corrected through uniform radial force, while avoiding the stress generated by rigid contact, effectively prevent the deformation of thin-walled or high-precision taper mirror due to excessive clamping force, and the guiding effect of positioning ring combines the uniform radial force generated by air bag inflation, can ensure that taper mirror axis and tool reference axis coincide.

Description

Technical Field

[0001] This utility model relates to the field of positioning tooling technology, specifically a positioning tooling for inspecting a conical mirror. Background Technology

[0002] In the inspection of optical components, the cone mirror, as a precision optical component with a conical end structure, directly affects the overall performance of the optical system by the accuracy of its detection parameters such as size, cone angle, surface roughness, and coaxiality. However, existing positioning fixtures have many limitations when adapting to the inspection of cone mirrors.

[0003] In the existing technology, traditional positioning fixtures are mostly designed for planar or cylindrical workpieces, which makes it difficult to achieve a precise match with the conical end of the conical mirror. Since the conical structure at one end of the conical mirror has a unique tilt angle, the existing fixtures lack a positioning reference that is compatible with the conical surface. Relying solely on external clamping makes it difficult to ensure the coaxiality between the workpiece axis and the reference axis of the testing equipment, which is insufficient to meet the requirements of high-precision testing.

[0004] Therefore, this utility model provides a positioning fixture for testing conical mirrors to solve the above problems. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] This invention provides a positioning fixture for inspecting conical mirrors, aiming to solve the problems mentioned in the background art.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a positioning fixture for detecting a conical mirror, comprising a positioning base, a positioning ring fixedly installed at the middle of the positioning base, the bottom end of the positioning ring being conical, an airbag fixedly installed on the inner wall of the positioning ring, a connecting pipe connected to the outer surface of the positioning ring, the connecting pipe penetrating the interior of the positioning base, one end of the connecting pipe being sealed and connected to the airbag, and the other end being sealed and connected to a connecting port located on the outside of the positioning base, the connecting port being used to connect to an external air pump to control the inflation and deflation of the airbag, and multiple sets of clamping components fixedly installed on the outer surface of the positioning base for forming a circumferential clamping of the conical mirror from the outside.

[0009] As a preferred technical solution of this application, multiple sets of outer shells are fixedly installed on the outer surface of the positioning base, and a top cover is fixedly installed on the top of each set of outer shells, and a limiting groove is formed on the top of the top cover.

[0010] As a preferred technical solution of this application, the multiple sets of clamping components include cylinders fixedly installed in multiple sets of housings, and a sliding block is fixedly installed at the output end of the cylinder. The top end of the sliding block extends out of the limiting groove, and a connecting plate is fixedly installed at the top end of the sliding block. A clamping block is fixedly installed at the end of the connecting plate.

[0011] As a preferred technical solution of this application, the sidewall of the clamping block is V-shaped, and the V-shaped sidewall is wrapped with rubber.

[0012] As a preferred technical solution of this application, multiple sets of limiting plates are fixedly installed on the top of the positioning base, and the inner sidewall of the limiting plate is in contact with the outer sidewall of the connecting plate to limit the radial displacement of the connecting plate.

[0013] As a preferred technical solution of this application, each of the multiple sets of housings has an annular interface on one side, the annular interface being used to connect to an external air source to supply air to the cylinder, and each of the multiple sets of housings has a heat dissipation groove at the bottom.

[0014] As a preferred technical solution of this application, all of the multiple sets of the outer shells are fixedly connected to the positioning base by a reinforcing plate. The reinforcing plate is a right-angled triangle, and its two right-angled sides are welded and fixed to the outer shell and the positioning base respectively.

[0015] Compared with the prior art, the beneficial effects of this application are as follows:

[0016] By employing a dual positioning mechanism of internal elastic support of the airbag and external circumferential clamping of the clamping block, the elastic clamping of the airbag corrects the deviation through uniform radial force, while avoiding the stress generated by rigid contact. This effectively prevents the thin-walled or high-precision conical mirror from deforming due to excessive clamping force. Furthermore, the guiding effect of the positioning ring, combined with the uniform radial force generated by the expansion of the airbag, ensures that the axis of the conical mirror coincides with the reference axis of the tooling. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the first overall structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the second overall structure of the present invention;

[0019] Figure 3 This is a schematic diagram of the exploded structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the mid-ring structure of this utility model.

[0021] In the diagram: 1. Positioning base; 11. Reinforcing plate; 2. Outer shell; 21. Annular interface; 22. Heat dissipation groove; 3. Top cover; 31. Limiting groove; 4. Connecting plate; 41. Clamping block; 5. Positioning ring; 51. Airbag; 52. Connecting port; 53. Connecting pipe; 6. Cylinder; 61. Sliding block; 7. Limiting plate. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] This utility model provides a positioning fixture for inspecting a conical mirror, such as... Figures 1 to 4 As shown, the system includes a positioning base 1, with a positioning ring 5 fixedly installed in the middle of the positioning base 1. The bottom end of the positioning ring 5 is conical, which can precisely fit the conical structure at one end of the conical mirror, providing initial positioning guidance for the conical mirror. An airbag 51 is fixedly installed on the inner wall of the positioning ring 5, and a connecting tube 53 is connected to the outer surface of the positioning ring 5. The connecting tube 53 penetrates the interior of the positioning base 1, with one end sealed to the airbag 51 and the other end sealed to the connecting port 52 located on the outside of the positioning base 1. The connecting port 52 is used to connect an external air pump to control the inflation and deflation of the airbag 51. By inflating and deflation, the internal elastic clamping of the conical mirror is achieved. On the one hand, the elastic clamping can avoid scratches or stress deformation of the conical mirror caused by rigid contact, protecting the accuracy and surface quality of the conical mirror. On the other hand, the uniform pressure generated by the expansion of the airbag can correct the slight deviation of the conical mirror and improve the positioning accuracy. Multiple sets of clamping components are fixedly installed on the outer surface of the positioning base 1 to form a ring-shaped clamping of the conical mirror from the outside.

[0024] The positioning base 1 has multiple sets of outer shells 2 fixedly installed on its outer surface. Each set of outer shells 2 has a top cover 3 fixedly installed on its top. The outer shells 2 protect the internal cylinder 6, preventing external dust and impurities from entering and affecting the normal operation of the cylinder, thus extending the service life of the cylinder. The top of the top cover 3 has a limit groove 31, which provides precise guidance and constraint for the sliding block 61, ensuring that the sliding block 61 can only move in a preset direction.

[0025] The multiple clamping components include cylinders 6 fixedly installed in multiple housings 2, and a sliding block 61 is fixedly installed at the output end of the cylinder 6. The top end of the sliding block 61 extends out of the limiting groove 31, and a connecting plate 4 is fixedly installed at the top end of the sliding block 61. A clamping block 41 is fixedly installed at the end of the connecting plate 4. The cylinder 6 serves as a power source and can provide a stable and controllable driving force, making the movement of the sliding block 61 more smooth and precise, and facilitating the control of the clamping force of the clamping block 41 on the conical mirror.

[0026] The clamping block 41 has a V-shaped sidewall covered with rubber. The V-shaped sidewall design is adapted to the outer surface shape of the conical mirror, which can increase the contact area between the clamping block and the conical mirror and improve the clamping stability. The rubber coating layer has elasticity and anti-slip properties, which can buffer the clamping force and avoid damage to the surface of the conical mirror. On the other hand, it can increase the friction and further enhance the clamping firmness.

[0027] The top of the positioning base 1 is fixedly installed with multiple sets of limiting plates 7, and the inner sidewall of the limiting plate 7 is in contact with the outer sidewall of the connecting plate 4 to limit the radial displacement of the connecting plate 4. This further ensures the accuracy of the movement direction of the connecting plate 4 and the clamping block 41, and avoids the clamping position of the clamping block 41 on the conical mirror due to the displacement of the connecting plate 4, thereby improving the positioning accuracy of the overall positioning fixture.

[0028] Among them, each of the multiple sets of outer shells 2 has an annular interface 21 on one side, which is used to connect an external air source to supply air to the cylinder 6. Furthermore, each of the multiple sets of outer shells 2 has a heat dissipation groove 22 at the bottom, which can dissipate the heat generated by the cylinder 6 inside the outer shell 2 during operation.

[0029] Among them, multiple sets of outer shells 2 are fixedly connected to the positioning base 1 by reinforcing plates 11. The reinforcing plates 11 are right-angled triangles, and their two right-angled sides are welded and fixed to the outer shells 2 and the positioning base 1 respectively. The right-angled triangle reinforcing plates 11 utilize the stability of triangles to greatly enhance the firmness and stability of the connection between the outer shells 2 and the positioning base 1, prevent the outer shells 2 from shaking or shifting when the cylinder 6 is working, and ensure the rigidity of the entire tooling structure.

[0030] Working principle: First, the conical mirror is initially placed by aligning the conical end of the conical mirror to be tested with the conical inner wall of the positioning ring 5. Utilizing the compatibility between the inner wall of the positioning ring and the conical mirror, the conical mirror slides naturally along the axis of the positioning ring to the preset position. During this process, the conical inner wall of the positioning ring 5 plays a preliminary guiding role, ensuring that the conical mirror is approximately at the center axis of the tooling, laying the foundation for subsequent precise positioning.

[0031] Next, an external air pump is connected through the connection port 52. Compressed gas enters the airbag 51 through the connection pipe 53, causing the airbag to expand evenly along the radial direction of the positioning ring 5. Since the inner surface of the airbag 51 is initially flush with the inner wall of the positioning ring, it will gradually conform to the outer conical surface of the conical mirror during the expansion process until a preset pressure is generated, forming an internal elastic support for the conical mirror. This support method utilizes the flexible contact of the airbag 51, which can correct the slight deviation of the conical mirror through uniform radial force, ensuring that its axis coincides with the reference axis of the tooling, and can also avoid mirror scratches or stress deformation caused by rigid contact.

[0032] Subsequently, multiple sets of cylinders 6 are driven synchronously. The cylinder output ends extend radially along the positioning base 1, driving the sliding block 61 to slide towards the center along the limiting groove 31 of the top cover 3. The sliding trajectory of the sliding block 61 in the limiting groove 31 is constrained by the groove body to ensure the accuracy of the movement direction. At the same time, the limiting plate 7 at the top of the positioning base 1 is attached to the outer wall of the connecting plate 4 to further limit the radial offset of the connecting plate and ensure that the clamping block 41 moves along the preset path. When the V-shaped side wall of the clamping block 41 contacts the outer surface of the conical mirror, the clamping block 41 forms a circumferential clamping. Since the surface of the clamping block 41 is covered with an elastic rubber layer, it prevents the conical mirror from rotating circumferentially and avoids lens deformation caused by excessive clamping force through the elastic buffer of the rubber.

[0033] Ultimately, the internal elastic support of the airbag 51 and the external circumferential clamping of the clamping block 41 work together to ensure the coaxiality of the conical mirror axis with the tooling reference, while the external clamping block 41 provides axial stabilizing force, thus achieving a state of no displacement and no deformation of the conical mirror during the inspection process, meeting the requirements of high-precision inspection for clamping stability.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A positioning fixture for inspecting a conical mirror, comprising a positioning base (1), characterized in that: A positioning ring (5) is fixedly installed in the middle of the positioning base (1), and the bottom end of the positioning ring (5) is conical. An airbag (51) is fixedly installed on the inner wall of the positioning ring (5). The outer surface of the positioning ring (5) is connected to a connecting pipe (53). The connecting pipe (53) penetrates the interior of the positioning base (1). One end of the pipe is sealed and connected to the airbag (51), and the other end is sealed and connected to the connecting port (52) located on the outside of the positioning base (1). The connecting port (52) is used to connect to an external air pump to control the inflation and deflation of the airbag (51). Multiple sets of clamping components are fixedly installed on the outer surface of the positioning base (1) for forming a circumferential clamping of the conical mirror from the outside.

2. The positioning fixture for inspecting a conical mirror according to claim 1, characterized in that: Multiple sets of outer shells (2) are fixedly installed on the outer surface of the positioning base (1). Each set of outer shells (2) has a top cover (3) fixedly installed on its top end, and the top end of the top cover (3) has a limiting groove (31).

3. The positioning fixture for inspecting a conical mirror according to claim 1, characterized in that: The multiple sets of clamping assemblies include cylinders (6) fixedly installed in multiple sets of housings (2), and a sliding block (61) is fixedly installed at the output end of the cylinder (6). The top end of the sliding block (61) extends out from the limiting groove (31), and a connecting plate (4) is fixedly installed at the top end of the sliding block (61). A clamping block (41) is fixedly installed at the end of the connecting plate (4).

4. The positioning fixture for inspecting a conical mirror according to claim 3, characterized in that: The sidewall of the clamping block (41) is V-shaped and is wrapped with rubber.

5. The positioning fixture for inspecting a conical mirror according to claim 1, characterized in that: The top of the positioning base (1) is fixedly installed with multiple sets of limiting plates (7), and the inner sidewall of the limiting plate (7) is in contact with the outer sidewall of the connecting plate (4) to limit the radial displacement of the connecting plate (4).

6. The positioning fixture for inspecting a conical mirror according to claim 2, characterized in that: Each of the multiple sets of housings (2) has an annular interface (21) on one side, which is used to connect an external air source to supply air to the cylinder (6), and each of the multiple sets of housings (2) has a heat dissipation groove (22) at the bottom.

7. The positioning fixture for inspecting a conical mirror according to claim 2, characterized in that: All sets of the outer shells (2) are fixedly connected to the positioning base (1) by a reinforcing plate (11). The reinforcing plate (11) is a right triangle, and its two right-angled sides are welded and fixed to the outer shell (2) and the positioning base (1) respectively.

Images