Optical coating fixture and coating machine
By using a support part to hold the component in the optical coating fixture, the problem that existing fixtures cannot adapt to changes in the actual size of optical components is solved, and a stable coating process and high-efficiency coating quality are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-25
- Publication Date
- 2026-03-10
AI Technical Summary
Existing optical coating fixtures cannot adapt to the actual size changes of optical components, resulting in unstable fixing effects, which can easily cause nicks or edge cracks, affecting coating quality and efficiency.
An optical coating fixture is used, which uses through holes on the components and supports to hold them in place. Combined with the design of the hanging plate and connectors, clamping is avoided, ensuring the stability and adaptability of the coating process.
It effectively avoids jamming or cracking, improves coating quality and efficiency, reduces defect rate, and adapts to the processing needs of various component sizes.
Smart Images
Figure CN223983718U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a fixture technology field for coating machine especially relates to an optical coating fixture. BACKGROUND
[0002] With the continuous progress and development of optical technology, the coating precision requirements of high-end optical elements are also continuously improved. The improvement of optical coating technology and advanced thin film design method can realize higher precision and performance to meet the high requirements of optical elements in different fields.
[0003] The existing method for preparing full-aperture optical thin film of ultra-wide-angle hemispherical lens mostly uses sandwich fixture. Although this method is simple to operate, due to the size tolerance between optical elements, the existing fixture can usually only be manufactured according to the theoretical design size, and cannot adapt to all elements with actual size changes, resulting in unstable fixing effect. Secondly, considering the influence of the gravity of the element itself, under the condition of ensuring firm fixation of the element, it is inevitable that the element will produce card printing or edge cracking phenomenon caused by stress concentration, which not only affects the appearance quality of the element, but also may cause uneven coating layer or even peeling, thereby greatly increasing the proportion of unqualified products. SUMMARY
[0004] The utility model provides a kind of optical coating fixture, to solve the defect that fixture can cause element to appear card printing or damage in prior art when coating, can avoid the phenomenon that element appears card printing or cracking, reduce the unqualified rate of product, improve coating efficiency.
[0005] The utility model also provides a kind of coating machine.
[0006] The utility model provides a kind of optical coating fixture, the optical coating fixture is applicable to fixed element, and first through hole is provided on the element along the first direction, the outer surface of the element includes first non-coating area, coating area and second non-coating area arranged in sequence along the first direction, and the optical coating fixture includes:
[0007] Hanging tray, second through hole is provided on the hanging tray, and the hanging tray includes oppositely arranged upper end face and lower end face;
[0008] Connecting piece, one end of the connecting piece is provided with fixed section, the fixed section is provided in the second through hole, and the end of the fixed section protrudes from the upper end face;
[0009] The other end of the connecting piece cooperates with the first through hole, and the other end of the connecting piece is provided with supporting portion, the supporting portion protrudes from the first through hole, the cross-sectional area of the supporting portion is greater than the cross-sectional area of the first through hole, and the supporting portion contacts the first non-coating area.
[0010] A fastener is provided on the upper end surface, and the cross-sectional area of the fastener is larger than the cross-sectional area of the second through hole. The fastener is detachably connected to the fixing segment.
[0011] In some embodiments, the connector includes a mating section connected to the support portion, and the outer peripheral surface of the mating section is in contact with the inner peripheral surface of the second through hole.
[0012] In some embodiments, the first through hole is a tapered hole, the surface of the mating section is a tapered surface, and the cross-sectional area of the mating section gradually increases along the direction from the mating section to the support portion.
[0013] In some embodiments, the cross-sectional area of the support portion is larger than the cross-sectional area of the mating section to form a first annular surface, the area of the first annular surface is smaller than the area of the first non-coated region, and the first annular surface is in contact with the first non-coated region.
[0014] In some embodiments, the first annular surface is a sphere.
[0015] In some embodiments, a groove is provided on the lower end surface, and the outer peripheral wall of the groove abuts against the second non-coated area.
[0016] In some embodiments, the fixing section is provided with threads, the fixing element is a nut, and the fixing section is threadedly connected to the nut.
[0017] In some embodiments, the connector includes a connecting segment disposed between the fixing segment and the mating segment.
[0018] In some embodiments, the hanging plate includes a first segment and a second segment connected together, the first segment being disposed adjacent to the upper end surface, and the outer peripheral surface of the first segment protruding from the outer peripheral surface of the second segment to form a first stepped surface.
[0019] The optical coating fixture of this invention uses a support portion to hold the component instead of clamping it, which not only avoids potential jamming or cracking problems, but also reduces the requirements for the processing precision of other components. By simply controlling the size of the support portion to ensure it does not extend beyond the non-coating area, the coating process can be ensured to proceed smoothly without affecting coating quality and efficiency.
[0020] Therefore, the optical coating fixture of this utility model embodiment can avoid the phenomenon of component jamming or cracking, and is easy to process and highly adaptable.
[0021] This utility model provides a coating machine, the coating machine comprising:
[0022] Organism;
[0023] Multiple optical coating fixtures, wherein the optical coating fixtures are the optical coating fixtures described in any of the above embodiments;
[0024] A planetary disk is rotatably mounted on the machine body. The planetary disk has multiple mounting holes, each mounting hole including a first hole segment and a second hole segment. The inner circumferential surface of the second hole segment protrudes from the inner circumferential surface of the first hole segment to form a second stepped surface. The hanging plate is installed in the mounting hole, and the second stepped surface is in contact with the first stepped surface.
[0025] The coating machine of this utility model can avoid the phenomenon of component jamming or cracking, reduce the product defect rate, and improve coating efficiency. Attached Figure Description
[0026] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0027] Figure 1 This is a schematic diagram of the structure of the optical coating fixture provided by this utility model.
[0028] Figure 2 This is a schematic diagram of the structure of the optical coating fixture fixing element provided by this utility model.
[0029] Figure 3 This is a schematic diagram of the installation of the optical coating fixture and components provided by this utility model.
[0030] Figure 4 yes Figure 3 A sectional view.
[0031] Figure 5 This is a schematic diagram of the optical coating fixture provided by this utility model installed on a coating machine.
[0032] Figure 6 This is a schematic diagram of the connecting component of the optical coating fixture provided by this utility model.
[0033] Figure label:
[0034] 100. Optical coating fixtures;
[0035] 200. Planetary disk; 201. Mounting hole; 204. Second step surface; 202. First hole section; 203. Second hole section;
[0036] 300, Component; 301, First through hole; 302, First non-coated area; 303, Coated area; 304, Second non-coated area;
[0037] 1. Hanging plate; 11. Second through hole; 12. Upper end face; 13. Lower end face; 131. Groove; 14. First section; 15. Second section; 16. First step surface;
[0038] 2. Connector; 21. Fixing section; 22. Supporting part; 221. First annular surface; 23. Mating section; 24. Connecting section; 3. Fixing component. Detailed Implementation
[0039] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0040] like Figures 1 to 6 As shown, this utility model embodiment provides a coating machine, which includes a machine body, multiple optical coating fixtures 100 and a planetary disk 200, wherein the optical coating fixtures 100 are the optical coating fixtures 100 described in any of the above embodiments.
[0041] The planetary disk 200 is rotatably mounted on the machine body. The planetary disk 200 has multiple mounting holes 201, and the optical coating fixture 100 is installed in the mounting holes 201.
[0042] For example, the planetary disk 200 can rotate on its own axis and revolve around the body. The optical coating fixture 100 is installed in the mounting hole 201 of the planetary disk 200, and the component 300 is hung on the bottom of the optical coating fixture 100. A crucible is provided below the body, and the crucible contains coating material. After the coating material evaporates, it floats upward and falls onto the surface of the component 300 to form a film layer.
[0043] This utility model embodiment provides an optical coating fixture 100, which is suitable for fixing an element 300, and the element 300 is provided with a first through hole 301 that is disposed through a first direction.
[0044] like Figure 2As shown, element 300 is an ultra-wide-angle lens, typically hemispherical. The outer surface of element 300 includes a first non-coated region 302, a coated region 303, and a second non-coated region 304 arranged sequentially along a first direction. The optical coating fixture 100 includes a hanging plate 1, a connector 2, and a fixing member 3.
[0045] A second through hole 11 is provided through the hanging plate 1, and the hanging plate 1 includes an upper end face 12 and a lower end face 13 arranged opposite to each other.
[0046] One end of the connector 2 is provided with a fixing section 21, which passes through the second through hole 11 and the end of the fixing section 21 protrudes from the upper end face 12.
[0047] The other end of the connector 2 is engaged with the first through hole 301, and the other end of the connector 2 is provided with a support portion 22. The support portion 22 protrudes from the first through hole 301 and the cross-sectional area of the support portion 22 is larger than the cross-sectional area of the first through hole 301. The support portion 22 is in contact with the first non-coated area 302.
[0048] The fastener 3 is located on the upper end face 12, and the cross-sectional area of the fastener 3 is larger than the cross-sectional area of the second through hole 11. The fastener 3 is detachably connected to the fixing section 21.
[0049] For example, for ease of description, the technical solution of this application will be described below with the first direction referring to the up and down direction, where the up and down direction is as follows: Figure 1 As shown.
[0050] Component 300 is a part awaiting coating, wherein the surface of component 300 is spherical. A first through hole 301 penetrates component 300 in the vertical direction.
[0051] The surface of component 300 includes three annular regions, which are, from bottom to top, a first non-coated region 302, a coated region 303, and a second non-coated region 304. The second non-coated region 304 is located adjacent to the hanging plate 1, and the first non-coated region 302 is located near the first through hole 301.
[0052] The hanging plate 1 has a second through hole 11, and the fixing part 3 is set on the upper part of the hanging plate 1.
[0053] The connector 2 extends in the vertical direction, and the fixing section 21 is located at the upper end of the connector 2.
[0054] The support part 22 is located at the lower end of the connector 2, the upper end of the connector 2 is installed in the second through hole 11, and the lower end of the connector frame is installed in the first through hole 301.
[0055] The top of the fixing section 21 is set higher than the hanging plate 1 so as to be connected to the fixing member 3. The fixing section 21 and the fixing member 3 are connected by threads or snap-fit.
[0056] The cross-sectional area of the support portion 22 is larger than the cross-sectional area of the first through hole 301, thereby being able to hold the component 300 and prevent the component 300 from falling.
[0057] The cross-sectional area of the fastener 3 is larger than the cross-sectional area of the second through hole 11, thereby preventing the fastener 3 from sliding into the second through hole 11.
[0058] The optical coating fixture 100 of this embodiment of the invention holds the component 300 in place by supporting the component 300 with the support portion 22, thereby fixing the component 300 to the connector 2. Through the cooperation of the fixing member 3 and the fixing section 21, the top of the connector 2 is fixed to the hanging plate 1, thereby fixing the component 300 to the hanging plate 1. Furthermore, the support portion 22 contacts the first non-coating area 302, thus not affecting the coating process of the coating area 303.
[0059] In related technologies, during the coating process, the second non-coated area 304 of the component 300 is usually clamped with a clamp, which can easily cause jamming or chipping of the edge of the component 300, resulting in defective products.
[0060] The optical coating fixture 100 of this utility model fixes the element 300 by using the support part 22 to hold the element 300 instead of clamping it, which not only avoids possible jamming or cracking problems, but also reduces the requirements for the processing accuracy of other parts.
[0061] Moreover, the optical coating clamp 100 of this utility model uses a non-clamping method to fix the component 300. As long as the component 300 is provided with a first through hole 301, the optical coating clamp 100 of this utility model can be used to fix the component 300, which can be adapted to components 300 of various sizes.
[0062] Furthermore, during processing, the optical coating fixture 100 of this embodiment only needs to control the size of the support portion 22 so that it does not exceed the non-coating area 303, which can ensure that the coating process proceeds smoothly and does not affect the coating quality and efficiency. There is no need to design the size of the fixture according to the radial dimension or outer perimeter dimension of the component 300, thereby reducing the processing requirements.
[0063] Therefore, the optical coating fixture 100 of this utility model embodiment can prevent the component 300 from jamming or cracking, and is easy to process and highly adaptable.
[0064] In some embodiments, such as Figures 4 to 6 As shown, the connector 2 includes a mating section 23, which is connected to the support portion 22, and the outer peripheral surface of the mating section 23 is in contact with the inner peripheral surface of the second through hole 11.
[0065] The section of connector 2 that mates with the second through hole 11 is called mating section 23. Its shape and size are adapted to the shape and size of the second through hole 11. This not only ensures that connector 2 can be smoothly inserted into the second through hole 11, but also ensures a tight fit between the two, allowing the entire component 300 to remain stable. During the coating operation, this design effectively avoids any potential problems caused by the instability of connector 2, further improving coating quality and work efficiency.
[0066] Optionally, the second through hole 11 is a circular hole, and the mating section 23 is cylindrical. Alternatively, if the second through hole 11 is a tapered hole, then the mating section 23 is tapered.
[0067] In some embodiments, the first through hole 301 is a tapered hole, the surface of the mating section 23 is a tapered surface, and the cross-sectional area of the mating section 23 gradually increases along the direction from the mating section 23 to the support portion 22.
[0068] For example, the second through hole 11 is designed as a tapered hole, and correspondingly, the mating section 23 of the connector 2 has a tapered surface, and the cross-sectional area of the mating section 23 gradually increases from top to bottom. This design allows the connector 2 to be installed on the component 300 with higher stability and precision. Through the matching of the tapered surface and the tapered hole, not only is a tight fit achieved, but also the alignment operation during installation and disassembly is facilitated, ensuring a stable connection between the connector 2 and the component 300 without loosening or slippage. In addition, as the cross-sectional area of the mating section 23 gradually increases, this structure can provide additional safety assurance while ensuring ease of operation, effectively avoiding any potential problems caused by the connector 2 not being securely fixed, thereby providing higher stability and reliability in the coating process and ensuring coating quality.
[0069] In some embodiments, such as Figure 6 As shown, the cross-sectional area of the support portion 22 is greater than the cross-sectional area of the mating section 23 to form a first annular surface 221. The area of the first annular surface 221 is smaller than the area of the first non-coated region 302. The first annular surface 221 is in contact with the first non-coated region 302.
[0070] For example, the cross-sectional area of the support portion 22 is larger than the cross-sectional area of the mating section 23, thereby forming a first annular surface 221 at the connection between the support portion 22 and the mating section 23.
[0071] By attaching the first annular surface 221 to the first non-coated area 302, sufficient support is provided to prevent the component 300 from sliding or falling off, while also minimizing interference with the coating process. Since the contact is limited to the non-coated area 303, and the area of the first annular surface 221 is smaller than the area of the first non-coated area 302, it will not affect the coating area 303 that requires coating treatment, thereby ensuring coating quality and product yield.
[0072] In some embodiments, the first annular surface 221 is a sphere.
[0073] For example, since the surface of element 300 is usually spherical, the first annular surface 221 is spherical so as to fit closely with the first uncoated area 302, thereby allowing the connector 2 to stably support and fix element 300.
[0074] Furthermore, by matching the curvature of component 300, the first annular surface 221 can provide necessary support while reducing the risk of pressure concentration or damage to the surface of component 300, thereby improving the quality and yield of the final product.
[0075] In some embodiments, a groove 131 is provided on the lower end face 13, and the outer peripheral wall of the groove 131 abuts against the second non-coated area 304.
[0076] For example, the top of component 300 is fixed in groove 131, and the outer peripheral wall of groove 131 is used to fix component 300, preventing component 300 from sliding relative to hanging plate 1, thereby improving the stability of component 300 and ensuring coating quality.
[0077] The shape of the groove 131 can be set according to the actual fixing needs. For example, the groove 131 can be circular, rectangular or annular.
[0078] Optionally, a portion of the end face of the component 300 is provided with a recess. Therefore, in order to better fix the component 300, an annular groove 131 can be provided on the lower end face 13, thereby fixing the edge of the component 300 in the annular groove 131.
[0079] In some embodiments, the fixing section 21 is provided with threads, and the fixing member 3 is a nut, with the fixing section 21 and the nut being threadedly connected. The optical coating fixture 100 of this embodiment of the utility model utilizes the threads and nuts to facilitate quick installation and removal, enabling the rapid installation and removal of the component 300 during coating operations.
[0080] In some embodiments, the connector 2 includes a connecting segment 24, which is disposed between the fixing segment 21 and the mating segment 23.
[0081] For example, the connector 2 includes a connecting section 24 located between the fixed section 21 and the mating section 23. This connecting section 24 acts as a bridge in structure, connecting the fixed section 21, which is used for threaded connection with the nut, and the mating section 23, which mates with the second through hole 11 of the hanging plate 1, to form an integral structure.
[0082] The optical coating clamp 100 of this utility model embodiment not only enhances the mechanical strength and stability of the entire connector 2, but also allows each functional segment to focus more on its specific function. For example, the fixing segment 21 is responsible for providing a stable installation base, while the mating segment 23 ensures accurate positioning and tight fit with the hanging plate 1. The design of the connecting segment 24 takes into account the transmission and distribution of force, which helps to reduce stress concentration and thus extend the service life of the connector 2.
[0083] In some embodiments, such as Figure 5 As shown, the hanging plate 1 includes a first section 14 and a second section 15 connected together. The first section 14 is disposed adjacent to the upper end surface 12, and the outer peripheral surface of the first section 14 protrudes from the outer peripheral surface of the second section 15 to form a first stepped surface 16.
[0084] For example, the first segment 14 is located at the upper end of the second segment 15, and the cross-sectional area of the first segment 14 is larger than that of the second segment 15. A first stepped surface 16 is formed at the connection between the first segment 14 and the second segment 15. In the optical coating fixture 100 of this embodiment, by setting the hanging plate 1 as a stepped segment, a mounting hole 201 adapted to the hanging plate 1 is provided on the coating machine. The mounting hole 201 is stepped, thereby facilitating the fixing of the hanging plate 1 on the coating machine.
[0085] This utility model provides a coating machine, which includes a machine body, multiple optical coating fixtures 100 and a planetary disk 200, wherein the optical coating fixtures 100 are the optical coating fixtures 100 described in any of the above embodiments.
[0086] like Figure 5 As shown, the planetary disk 200 is rotatably mounted on the machine body. The planetary disk 200 is provided with a plurality of mounting holes 201. The mounting holes 201 include a first hole section 202 and a second hole section 203. The inner circumferential surface of the second hole section 203 protrudes from the inner circumferential surface of the first hole section 202 to form a second step surface 204. The hanging plate 1 is installed in the mounting hole 201, and the second step surface 204 fits against the first step surface 16.
[0087] The planetary disk 200 is rotatably mounted on the body. It can not only rotate on its own axis, but also revolve around the body to achieve a more uniform coating effect.
[0088] The planetary disk 200 has multiple mounting holes 201, each including a first hole segment 202 and a second hole segment 203. The inner circumferential surface of the second hole segment 203 protrudes beyond the inner circumferential surface of the first hole segment 202, forming a second stepped surface 204. The hanging plate 1 is installed within the mounting holes 201. The first hole segment 202 is positioned above the second hole segment 203. The first hole segment 202 mates with the first section 14, and the second hole segment 203 mates with the second section 15. The first stepped surface 16 on the hanging plate 1 is in close contact with the second stepped surface 204 within the mounting holes 201. Therefore, the hanging plate 1 and the planetary disk 200 are easily installed and disassembled, thereby improving coating efficiency.
[0089] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. An optical coating fixture, comprising: The optical coating fixture is suitable for fixing a coating part, and the coating part is provided with a first through hole penetrating in a first direction, and an outer surface of the coating part comprises a first non-coating area, a coating area and a second non-coating area arranged in sequence in the first direction. A hanging disc is provided with a second through hole penetrating therethrough, and the hanging disc comprises oppositely arranged upper and lower end faces. One end of a connecting piece is provided with a fixing section penetrating in the second through hole, and an end of the fixing section protrudes out of the upper end face. The other end of the connecting piece is matched with the first through hole, and the other end of the connecting piece is provided with a supporting section protruding out of the first through hole, a cross-sectional area of the supporting section is larger than that of the first through hole, and the supporting section is in contact with the first non-coating area. A fixing piece is arranged on the upper end face, a cross-sectional area of the fixing piece is larger than that of the second through hole, and the fixing piece is detachably connected with the fixing section.
2. The optical coating fixture of claim 1, wherein, The connecting piece comprises a matching section connected with the supporting section, and an outer peripheral surface of the matching section is in contact with an inner peripheral surface of the second through hole.
3. The optical coating fixture of claim 2, wherein, The first through hole is a tapered hole, a surface of the matching section is a tapered surface, and the cross-sectional area of the matching section gradually increases in a direction from the matching section to the supporting section.
4. The optical coating fixture of claim 2, wherein, The cross-sectional area of the supporting section is larger than that of the matching section to form a first annular surface, an area of the first annular surface is smaller than that of the first non-coating area, and the first annular surface is in contact with the first non-coating area.
5. The optical coating fixture of claim 4, wherein, The first annular surface is a spherical surface.
6. The optical coating fixture of claim 1, wherein, A groove is arranged on the lower end face, and an outer peripheral wall of the groove is in contact with the second non-coating area.
7. The optical coating fixture of claim 1, wherein, The fixing section is provided with a thread, and the fixing piece is a nut, and the fixing section is threadedly connected with the nut.
8. The optical coating fixture of claim 2, wherein, The connecting piece comprises a connecting section arranged between the fixing section and the matching section.
9. The optical coating fixture of claim 1, wherein, The hanging disc comprises a first section and a second section connected with each other, the first section is arranged adjacent to the upper end face, and an outer peripheral surface of the first section protrudes out of an outer peripheral surface of the second section to form a first stepped surface.
10. A coating machine characterized by comprising: A machine body; A plurality of optical coating fixtures, the optical coating fixture is any one of claims 1-9; A planet disc is rotatably arranged on the machine body, and the planet disc is provided with a plurality of mounting holes, the mounting hole comprises a first hole section and a second hole section, an inner peripheral surface of the second hole section protrudes out of an inner peripheral surface of the first hole section to form a second stepped surface, the hanging disc is mounted in the mounting hole, and the second stepped surface is in contact with the first stepped surface.