Film coating clamp

Abstract

The utility model discloses a film coating clamp, and relates to the technical field of optical element machining. The film coating clamp comprises a base, a turnover disc and two supporting columns, the turnover disc is rotationally arranged on the base and used for clamping an optical element, the supporting columns are fixedly arranged on the base, the two supporting columns are located on the two opposite sides of the turnover disc respectively, the turnover disc rotates relative to the base, and the turnover disc rotates relative to the base. And the overturning disc is correspondingly connected with the two supporting columns, so that the two opposite surfaces of the optical element are respectively exposed towards one side close to the coating equipment. The film coating clamp can solve the problems of long time consumption of a film coating procedure, time consumption of manual operation and easiness in pollution and falling of a crystal in an existing clamp.

Description

Coating fixture Technical Field

[0001] This application relates to the field of optical component processing technology, and more specifically, to a coating fixture. Background Technology

[0002] In the fields of optics and optoelectronics, coating optical components is a key process for improving their transmission, reflection, or polarization characteristics. In actual production, some optical components require coating on both opposite sides. However, existing fixtures only support single-sided coating; coating the other side requires flipping the component and re-clamping it, resulting in a secondary clamping operation. This secondary clamping operation takes up time in the coating process, the flipping process can easily cause surface contamination of the crystal, and the operations of removing the optical component and adjusting its position for clamping consume a lot of manual time and resources. There is also a risk of the crystal falling when it is removed and flipped. Summary of the Invention

[0003] The purpose of this application is to provide a coating fixture that can solve the problems of long coating process, time-consuming manual operation, easy crystal contamination and drop in existing fixtures.

[0004] The embodiments of this application are implemented as follows:

[0005] A first aspect of this application provides a coating fixture, including a base, a tilting disk, and two support columns. The tilting disk is rotatably mounted on the base and is used to hold optical elements. The support columns are fixedly mounted on the base, with the two support columns located on opposite sides of the tilting disk. The tilting disk rotates relative to the base to connect with the two support columns, exposing opposite sides of the optical elements towards the side closest to the coating equipment. This coating fixture solves the problems of long coating process time, time-consuming manual operation, and easy contamination and drop of crystals in existing fixtures.

[0006] As one possible implementation, along the rotation axis of the flip disk, two support seats are fixedly provided on the base, each of the two support seats is provided with a first mounting part, and a second mounting part is provided on each of the opposite sides of the flip disk. The second mounting part is rotatably engaged with the first mounting part so that the flip disk is rotatably mounted on the support seat.

[0007] In one possible implementation, the first mounting portion is a through hole or groove, and the second mounting portion is a protrusion adapted to the through hole or groove; or, the first mounting portion is a protrusion, and the second mounting portion is a through hole or groove adapted to the protrusion.

[0008] In one possible implementation, the first mounting part and the second mounting part are press-fitted by bearings, and a bearing cap is fixedly provided on the outside of the bearing.

[0009] As one possible implementation, a limiting part is provided on one side of the flip disk along the line connecting the two support columns. When the flip disk rotates relative to the base until the limiting part contacts the support column, the optical element is in a horizontal state.

[0010] As one possible implementation, it also includes fasteners. The limiting part is provided with a connecting hole, and the support column is provided with a mounting hole. The fasteners are sequentially inserted into the connecting hole and the mounting hole so that the flip plate is fixedly connected to the support column.

[0011] As one possible implementation, a guide rod is provided inside the flip disk along the line connecting the two support columns. At least two clamping pieces and at least two locking members are sleeved on the guide rod. The locking members cooperate with the guide rod to press the clamping pieces against the optical element so that the optical element is clamped between the two clamping pieces.

[0012] In one possible implementation, the guide rod is provided with an external thread, and the locking member is provided with an internal thread, wherein the internal thread is threadedly connected to the external thread.

[0013] In one possible implementation, the guide rods include two, each of the clamping pieces has two through holes, and the two guide rods are inserted one-to-one into the two through holes on each clamping piece, with the locking member located outside the two adjacent clamping pieces.

[0014] In one possible implementation, the base is provided with a through groove, and the vertical projection of the outer peripheral wall of the flip disk on the base is located outside the through groove.

[0015] The beneficial effects of the embodiments of this application include:

[0016] This coating fixture includes a base, a tilting disk, and two support columns. The tilting disk is rotatably mounted on the base and is used to clamp optical components. The support columns are fixedly mounted on the base, with the two support columns located on opposite sides of the tilting disk. The tilting disk rotates relative to the base to connect with the two support columns, exposing the opposite sides of the optical components towards the side closest to the coating equipment. The coating fixture provided in this application eliminates the need for manual disassembly, tilting, and installation of optical components. Simply rotating the tilting disk allows for switching between the opposite sides of the optical components, eliminating secondary clamping operations, shortening the coating process time, significantly improving coating efficiency, and reducing manual labor intensity. Furthermore, since no manual contact with the optical components is required throughout the process, the probability of crystal surface contamination is reduced, ensuring the cleanliness of the optical component surface before coating. Simultaneously, the optical components remain stably clamped during the tilting disk's rotation, thus reducing the risk of drop. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 is a schematic diagram of one of the coating fixtures provided in the embodiments of this application;

[0019] Figure 2 is a second schematic diagram of the coating fixture provided in the embodiment of this application;

[0020] Figure 3 is a third schematic diagram of the coating fixture provided in the embodiments of this application.

[0021] Icons: 1-Base; 2-Support base; 3-Bearing; 4-Bearing cover; 5-Fastener; 6-Tilting disc; 7-Guide rod; 8-Locking component; 9-Clamping piece. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0023] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. These terms are used only for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "horizontal," "vertical," etc., do not indicate that the component must be absolutely horizontal or suspended, but can be slightly tilted. The terms "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0024] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0025] Referring to Figures 1 to 3, this application provides a coating fixture, including a base 1, a rotating disk 6, and two support columns. The rotating disk 6 is rotatably mounted on the base 1 and is used to hold optical components. The support columns are fixedly mounted on the base 1, with the two support columns located on opposite sides of the rotating disk 6. The rotating disk 6 rotates relative to the base 1 so that it connects with the two support columns, exposing the opposite sides of the optical components towards the side closest to the coating equipment. This coating fixture solves the problems of long coating process time, time-consuming manual operation, and easy contamination and drop of crystals in existing fixtures.

[0026] It should be noted that, as shown in Figures 1 and 2, the coating fixture includes a base 1, a rotating disk 6, and two support columns. The base 1 serves as the basic support component, providing a stable mounting platform for the entire coating fixture. The rotating disk 6 is rotatably connected to the base 1, and its core function is to hold optical components. The two support columns are fixedly connected to the base 1, located on opposite sides of the rotating disk 6, forming a symmetrical support structure. Since the rotating disk 6 can rotate relative to the base 1, when coating is required on opposite sides of the optical components, rotating the rotating disk 6 connects it to the corresponding support columns on both sides. This connection design allows the rotating disk 6 to maintain a stable posture after rotation, thus exposing the opposite sides of the optical components sequentially towards the side closest to the coating equipment, providing a clear working surface for subsequent coating operations.

[0027] Traditional clamps require manual disassembly and reassembly of optical components. However, the coating clamp provided in this application eliminates the need for manual disassembly, reassembly, and reassembly of optical components. Simply rotating the flip plate 6 allows for switching between the two opposing sides of the optical component, eliminating secondary clamping operations, shortening the coating process time, significantly improving coating efficiency, and reducing labor intensity. Furthermore, traditional manual flipping easily leads to crystal contamination due to hand contact. The coating clamp provided in this application, where operators only need to rotate the flip plate 6 to switch between the two opposing sides of the optical component without manual contact, reduces the probability of crystal surface contamination, ensuring the cleanliness of the optical component surface before coating. Simultaneously, the optical component remains stably clamped during the rotation of the flip plate 6, thus reducing the risk of drop.

[0028] As one possible implementation, as shown in Figures 1 and 2, two support seats 2 are fixedly provided on the base 1 along the rotation axis of the flip disk 6. Each of the two support seats 2 is provided with a first mounting part, and a second mounting part is provided on the opposite sides of the flip disk 6. The second mounting part is rotatably engaged with the first mounting part so that the flip disk 6 is rotatably mounted on the support seat 2.

[0029] It should be noted that two support seats 2 are fixedly installed on the base 1 along the rotation axis of the rotating disk 6. The two support seats 2 serve as the supporting foundation for the rotation of the rotating disk 6 and can be rigidly connected to the base 1 by bolts, welding, or other fixing methods to ensure that the rotating disk 6 maintains a stable position during rotation. Each of the two support seats 2 is provided with a first mounting part, and corresponding second mounting parts are provided on opposite sides of the rotating disk 6. Through the rotational cooperation between the second mounting parts and the first mounting parts, the rotating disk 6 can rotate smoothly around its rotation axis, thereby driving the rotating disk 6 to rotate relative to the base 1 to the required angle.

[0030] As one possible implementation, as shown in Figures 1 and 2, the first mounting part is a through hole or groove, and the second mounting part is a protrusion adapted to the through hole or groove; or, the first mounting part is a protrusion, and the second mounting part is a through hole or groove adapted to the protrusion.

[0031] It should be noted that in some embodiments, when the first mounting part is designed as a through hole or groove, the second mounting part is a corresponding protruding structure with a matching shape. For example, the first mounting part on the support 2 is a cylindrical through hole, while the second mounting part on the flip plate 6 is a cylindrical boss with a slightly smaller diameter, achieving a rotational connection through an interference fit or a clearance fit; or, the first mounting part is a U-shaped groove, while the second mounting part is a matching T-shaped protrusion, forming a slot-type rotational structure.

[0032] In other embodiments, when the first mounting part is designed as a protruding structure, the second mounting part corresponds to a through hole or groove with a matching shape. For example, the first mounting part on the support 2 is a dovetail groove, and the second mounting part on the flip plate 6 is a dovetail protrusion. After the two are engaged, they can rotate through the central pivot, which is suitable for application scenarios that need to withstand large axial loads.

[0033] As one possible implementation, as shown in Figures 1 and 2, the first mounting part and the second mounting part are interference-fitted by the bearing 3, and a bearing cap 4 is fixedly provided on the outside of the bearing 3.

[0034] It should be noted that the first mounting part and the second mounting part can achieve low-friction rotation through the bearing 3. At the same time, the bearing cover 4 can be fixed on the first mounting part on the outside of the bearing 3 by means of bolts or clips. The inner side of the bearing cover 4 can be machined with a stop groove that matches the end face of the outer ring of the bearing 3. During installation, the stop groove on the bearing cover 4 abuts tightly with the end face of the outer ring of the bearing 3. The bearing cover 4 is fixed on the support seat 2 by bolts, thereby restricting the axial movement of the bearing 3 and realizing axial positioning and radial rotation.

[0035] As one possible implementation, as shown in Figures 1 and 2, a limiting part is provided on one side of the rotating disk 6 along the line connecting the two support columns. When the rotating disk 6 rotates relative to the base 1 until the limiting part contacts the support column, the optical element is in a horizontal state.

[0036] It should be noted that a limiting part (such as a limiting protrusion, limiting step, or limiting groove) is provided on one side of the rotating disk 6 along the line connecting the two support columns. When the rotating disk 6 rotates relative to the base 1 around its rotation axis, the limiting part rotates synchronously with the rotating disk 6. When the rotating disk 6 rotates to a specific angle and the limiting part contacts the support column on the corresponding side, the mechanical limiting action stops the rotating disk 6 from rotating. At this time, the bearing surface of the optical element is exactly in a horizontal state. The above design ensures the positioning accuracy of the rotating disk 6 through geometric limiting. For example, the limiting part uses a 90° right-angle protrusion, and the support column has a limiting plane at the corresponding position. When the right-angle protrusion is in contact with the limiting plane, the rotating disk 6 completes a 180° rotation and locks in a horizontal state.

[0037] As one possible implementation, as shown in Figures 1 and 2, the coating fixture also includes a fastener 5, a connecting hole on the limiting part, and an mounting hole on the support column. The fastener 5 is sequentially inserted into the connecting hole and the mounting hole so that the rotating disk 6 is fixedly connected to the support column.

[0038] It should be noted that the fasteners 5 (such as bolts, screws, or pins) added to the coating fixture are used to fix the limiting part to the support column. Specifically, a connecting hole is machined on the limiting part, and a mounting hole is provided at the corresponding position on the support column. After the fasteners 5 pass through the connecting hole and the mounting hole in sequence, they are locked by tightening the nut or by interference fit. This connection method allows the rotating disk 6 to be further fixed by the fasteners 5 when it rotates to contact the supporting column, forming a rigid connection structure. This ensures that the rotating disk 6 will not be displaced during the coating process, and can reduce the positioning error when coating optical components.

[0039] As one possible implementation, as shown in Figures 1 and 2, a guide rod 7 is inserted through the flip disk 6 along the line connecting the two support columns. At least two clamping pieces 9 and at least two locking members 8 are sleeved on the guide rod 7. The locking members 8 cooperate with the guide rod 7 to press the clamping pieces 9 against the optical element so that the optical element is clamped between the two clamping pieces 9.

[0040] It should be noted that at least one guide rod 7 (such as a cylindrical optical axis or a threaded rod) is inserted into the rotating disk 6 along the line connecting the two support columns. The opposite ends of the guide rod 7 are connected to the rotating disk 6 to ensure axial fixation. At least two clamping pieces 9 (such as metal plates or engineering plastic plates) are fitted on the guide rod 7. The clamping pieces 9 are machined with through holes that fit the guide rod 7, and the clamping pieces 9 can slide along the axial direction of the guide rod 7. At least two locking elements 8 (such as nuts, bolts, or elastic retaining rings) are provided on the outer side of every two clamping pieces 9. The locking elements 8 are connected to the guide rod 7 by threaded engagement or a slot structure. When it is necessary to clamp an optical element, the optical element is placed between the two clamping pieces 9, and the locking elements 8 are tightened to make them abut against the clamping pieces 9. The axial pressure of the locking elements 8 tightly fits the clamping pieces 9 and the optical element, thereby forming a rigid clamping structure.

[0041] As one possible implementation, as shown in Figures 1 and 2, the guide rod 7 is provided with an external thread, and the locking member 8 is provided with an internal thread, with the internal thread and the external thread being threadedly connected.

[0042] It should be noted that the guide rod 7 is machined with external threads, and the locking part 8 (such as a hexagonal nut or wing nut) has corresponding internal threads on its inner side. The connection is achieved by the engagement of the internal and external threads. When the locking part 8 is tightened, the axial thrust of the threaded pair presses the clamping piece 9 against the optical element, forming a clamping force; when the locking part 8 is loosened in the opposite direction, the clamping force is released, allowing the optical element to be removed.

[0043] As one possible implementation, as shown in Figures 1 and 2, the guide rod 7 includes two rods, each clamping piece 9 has two through holes, and the two guide rods 7 are inserted one-to-one into the two through holes on each clamping piece 9. The locking member 8 is located outside the two adjacent clamping pieces 9.

[0044] It should be noted that the coating fixture has two guide rods 7, symmetrically distributed along a direction parallel to the line connecting the two support columns. Each clamping piece 9 has two through holes machined on it, and the two guide rods 7 are inserted into these holes one-to-one, forming a double-rod positioning structure. Locking members 8 are installed on the outer sides of two adjacent clamping pieces 9 and are connected to the guide rods 7 via threads. When the outer locking member 8 is tightened, axial thrust is transmitted to the clamping pieces 9, thereby clamping the optical element between the two clamping pieces 9.

[0045] As one possible implementation, as shown in Figure 3, a through groove is provided on the base 1, and the vertical projection of the outer peripheral wall of the flip disk 6 on the base 1 is located outside the through groove.

[0046] It should be noted that a through groove is machined on the base 1, which runs through both the upper and lower surfaces of the base 1. The flip disk 6 is mounted above the base 1, and the vertical projection of the outer peripheral wall of the flip disk 6 onto the base 1 lies entirely outside the through groove. This means that when viewed from below the base 1 along a direction perpendicular to the base 1, the edge contour of the flip disk 6 does not overlap with the edge of the through groove, and the two maintain a safe distance (e.g., ≥5mm).

[0047] The above description is merely an optional embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

[0048] It should also be noted that the various specific technical features described in the above embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this application will not describe the various possible combinations separately.

Claims

1. A coating fixture, characterized by, The device includes a base, a flip plate, and two support columns. The flip plate is rotatably mounted on the base and is used to hold optical elements. The support columns are fixedly mounted on the base, and the two support columns are located on opposite sides of the flip plate. The flip plate rotates relative to the base so that it is connected to the two support columns so that the opposite sides of the optical elements are exposed towards the side closer to the coating equipment.

2. The plating fixture of claim 1, wherein Along the rotation axis of the flip disk, two support seats are fixedly provided on the base. Each of the two support seats is provided with a first mounting part. A second mounting part is provided on each of the opposite sides of the flip disk. The second mounting part is rotatably engaged with the first mounting part so that the flip disk is rotatably mounted on the support seat.

3. The plating fixture of claim 2, wherein The first mounting portion is a through hole or groove, and the second mounting portion is a protrusion adapted to the through hole or groove; or, the first mounting portion is a protrusion, and the second mounting portion is a through hole or groove adapted to the protrusion.

4. The coating fixture of claim 2, wherein, The first mounting part and the second mounting part are connected by an interference fit of bearings, and a bearing cap is fixedly provided on the outside of the bearing.

5. The coating fixture according to claim 1, characterized in that, Along the line connecting the two support columns, a limiting part is provided on one side of the flip disk. When the flip disk rotates relative to the base until the limiting part contacts the support column, the optical element is in a horizontal state.

6. The coating fixture according to claim 5, characterized in that, It also includes fasteners, the limiting part is provided with a connecting hole, the support column is provided with a mounting hole, and the fasteners are sequentially inserted into the connecting hole and the mounting hole so that the flip plate is fixedly connected to the support column.

7. The plating fixture of claim 1, wherein Along the line connecting the two support columns, a guide rod is inserted into the flip disk. At least two clamping pieces and at least two locking members are sleeved on the guide rod. The locking members cooperate with the guide rod to press the clamping pieces against the optical element so that the optical element is clamped between the two clamping pieces.

8. The plating fixture of claim 7, wherein The guide rod is provided with an external thread, and the locking member is provided with an internal thread, and the internal thread is threadedly connected to the external thread.

9. The coating fixture of claim 7, wherein, The guide rods include two, and each of the clamping pieces has two through holes. The two guide rods are inserted one-to-one into the two through holes on each of the clamping pieces. The locking member is located outside the two adjacent clamping pieces.

10. The coating fixture according to claim 1, characterized in that, The base is provided with a through groove, and the vertical projection of the outer peripheral wall of the flip disk on the base is located outside the through groove.

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