Cleaning jig applied to long-strip-shaped optical products
By designing an adjustable vertical placement structure and an optimized drainage system, the problems of water droplet accumulation and length adaptability in existing fixtures have been solved, improving the cleaning efficiency and cleanliness of optical products and ensuring product safety and yield.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HECHUANG OPTOELECTRONICS (WUHAN) CO LTD
- Filing Date
- 2025-06-13
- Publication Date
- 2026-05-19
AI Technical Summary
Existing optical product cleaning fixtures tend to accumulate water droplets when placed horizontally, prolonging drying time. Furthermore, the fixed length of the slots cannot accommodate optical products of different lengths, affecting cleaning efficiency and product yield.
A height-adjustable cleaning fixture was designed. By vertically placing optical products and utilizing a drain plate structure, the cleaning fluid can be allowed to flow down naturally. Combined with support legs and a hollow structure, the drainage performance is improved, making it suitable for optical products of different lengths.
It improves cleaning efficiency and product cleanliness, prevents product slippage and damage, enhances the versatility and operational safety of the fixture, and significantly improves cleaning quality and yield.
Smart Images

Figure CN224253779U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of optical product manufacturing technology, and in particular to a cleaning fixture for long strip-shaped optical products. Background Technology
[0002] In the manufacturing process of optical products, surface cleanliness directly affects the optical performance and measurement accuracy of the final product. For example, long strip-shaped grating rulers made of metal or glass are highly susceptible to contaminants such as dust particles, oil stains, and cutting fluid residues in the environment during multiple processes such as cutting, handling, grinding, and cleaning, leading to a decrease in surface cleanliness. Especially in continuous multi-process operations, secondary contamination of the product surface is often difficult to completely avoid due to manual operation, equipment clamping, or contact during transportation, thus significantly increasing the incidence of defective products and affecting the overall product yield.
[0003] To improve the cleanliness of optical products, the industry commonly uses specialized optical product cleaning fixtures to assist in cleaning long, narrow optical products. Currently, the most common optical product cleaning fixtures on the market are slot-type structures. For example, an invention application with publication number CN114589148A discloses a grating substrate cleaning device. During cleaning, the long, narrow grating ruler is fixed in the slot, and then the grating substrate is immersed in the cleaning solution in the cleaning tank for cleaning.
[0004] As described in the above technical solution, the elongated optical product is placed horizontally in the cleaning slot. After cleaning, water droplets easily accumulate on its surface, which not only prolongs the drying time during the subsequent drying process but also easily leads to residual water stains, affecting the surface smoothness of the product. In addition, the slot length of this type of cleaning fixture is fixed, which cannot flexibly adapt to elongated optical products of different lengths, thus limiting its applicability. Therefore, it is necessary to provide a cleaning fixture for elongated optical products. Utility Model Content
[0005] In view of this, the present invention proposes a cleaning fixture for long and narrow optical products. By setting an adjustable height structure, the applicability of the fixture is improved. At the same time, by placing the optical products vertically, water droplets are less likely to accumulate on their surface, thereby improving the subsequent drying efficiency and the surface smoothness of the products. This solves the problem of water accumulation on the grating substrate caused by horizontal placement of products in the prior art, as well as the problem of difficulty in adapting to products of different lengths due to the fixed length of the slot.
[0006] The technical solution of this utility model is implemented as follows:
[0007] This utility model provides a cleaning fixture for elongated optical products, including a drain plate, a product mounting plate, and adjusting bolts.
[0008] The product mounting plate is height-adjustable above the drain plate via the adjusting bolts;
[0009] The product mounting plate is provided with through holes for vertically inserting long strip-shaped optical products.
[0010] The top of the drain plate abuts against the bottom of the inserted elongated optical product to maintain the vertical position of the elongated optical product, allowing the cleaning liquid to flow naturally down its surface and be discharged through the drain plate.
[0011] Based on the above technical solutions, preferably, the adjusting bolt is arranged vertically.
[0012] Based on the above technical solutions, preferably, the adjusting bolt includes a threaded rod and an adjusting nut, wherein...
[0013] The lower end of the threaded rod is fixedly connected to the drain plate, and the upper end passes through the product mounting plate.
[0014] At least two adjusting nuts are provided on the threaded rod;
[0015] The two adjusting nuts clamp the product mounting plate from above and below.
[0016] Based on the above technical solutions, preferably, the adjusting bolt further includes a fixing nut, wherein...
[0017] At least two fixing nuts are provided on the threaded rod;
[0018] The lower end of the threaded rod passes through the drain plate, and the two fixing nuts clamp the drain plate from above and below.
[0019] Based on the above technical solutions, preferably, the lower end of the threaded rod extends downward to the bottom of the fixing nut below, so as to form a support leg structure.
[0020] Based on the above technical solutions, preferably, the drain plate includes a support frame and a drain base plate, wherein,
[0021] The support frame is a hollowed-out plate-like structure;
[0022] The leaking base plate is located on the top of the support frame, and the two are connected by the threaded rod and the fixing nut;
[0023] The leaking base plate has several leaking holes vertically running through it.
[0024] Based on the above technical solutions, preferably, the opening at the upper end of the leakage hole is in the shape of a trumpet.
[0025] Based on the above technical solution, preferably, adjacent leakage holes are connected by a guide channel, wherein...
[0026] The guide channel is formed at the top of the leaking base plate.
[0027] Based on the above technical solutions, preferably, the product mounting plate includes a support plate and a clamping plate, wherein,
[0028] The support plate is located at the bottom of the clamping plate, and the two are connected by the threaded rod and the adjusting nut;
[0029] The clamping plate is a polytetrafluoroethylene plate with a first placement hole, and the support plate is provided with a second placement hole;
[0030] The first placement hole and the second placement hole are aligned vertically to form the through hole.
[0031] Based on the above technical solutions, preferably, the inner diameter of the first placement hole is smaller than the inner diameter of the second placement hole.
[0032] The cleaning fixture for elongated optical products of this invention has the following advantages over the prior art:
[0033] (1) By adjusting the height of the product mounting plate above the drain plate and opening through holes on it for vertically inserting long strip-shaped optical products, the product can be stably placed vertically, allowing the cleaning solution to flow naturally down its surface and drain smoothly through the drain plate after cleaning, effectively preventing water accumulation from affecting the cleaning and drying effect, thereby improving the overall cleaning efficiency and cleanliness. Moreover, this cleaning fixture can be adapted to long strip-shaped optical products of different lengths, enhancing its versatility. In addition, during the movement of the fixture, the product is not easy to slip due to the constraint of the fixture, preventing product damage and improving operational safety.
[0034] (2) By extending the lower end of the threaded rod to form a fixed nut to create a support leg structure, the bottom of the fixture has an open drainage space, which facilitates the rapid discharge of sewage. Combined with the hollow support frame, the funnel-shaped drainage holes and the design of the guide channel, the drainage performance is further improved, effectively preventing water accumulation on the top of the drain board and avoiding contamination of the cleaned products by residual sewage, thereby significantly improving the cleaning quality and product yield.
[0035] (3) The support plate provides structural support to the clamping plate, which effectively prevents the clamping plate from bending downward under the gravity of the cleaning fluid and improves the service life of the fixture. Attached Figure Description
[0036] To more clearly illustrate the technical solutions in the embodiments of 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 only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0037] Figure 1 This is a perspective view of a cleaning fixture for elongated optical products according to the present invention;
[0038] Figure 2 A three-dimensional view of the support frame;
[0039] Figure 3 A 3D view of the leaking base plate;
[0040] Figure 4 A three-dimensional view of the support plate;
[0041] Figure 5 A three-dimensional diagram of the clamping plate;
[0042] Figure 6 A schematic diagram of the support leg structure formed at the lower end of the threaded rod;
[0043] In the diagram: 1. Drainage board; 2. Product mounting plate; 3. Adjusting bolt; 11. Support frame; 12. Drainage base plate; 21. Support plate; 22. Clamping plate; 31. Threaded rod; 32. Adjusting nut; 33. Fixing nut; 121. Drainage hole; 122. Guide channel; 201. Through hole; 211. Second placement hole; 221. First placement hole. Detailed Implementation
[0044] The technical solutions of this utility model will be clearly and completely described below with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. 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.
[0045] like Figure 1-6 As shown, this utility model provides a cleaning fixture for elongated optical products, including a drain plate 1, a product mounting plate 2, and adjusting bolts 3.
[0046] The product mounting plate 2 is height-adjustable above the drain plate 1 by adjusting bolts 3; the product mounting plate 2 is provided with through holes 201 for vertically inserting long strip-shaped optical products; the top of the drain plate 1 abuts against the bottom of the inserted long strip-shaped optical product to maintain the vertical state of the long strip-shaped optical product, so that the cleaning liquid can flow down its surface naturally and be discharged through the drain plate 1.
[0047] This structure not only ensures stable vertical placement of the product, allowing the cleaning solution to flow naturally down its surface by gravity and drain smoothly through the drain plate 1 after cleaning, effectively preventing water accumulation from affecting the cleaning and drying effects, thus improving overall cleaning efficiency and cleanliness, but also enables the cleaning fixture to adapt to products of different lengths, enhancing its versatility. The elongated product can be a glass grating ruler, a metal grating ruler, or other elongated optical products.
[0048] In addition, during the movement of the fixture, the long, narrow optical products are less likely to slip off the fixture due to the fixture's constraint, effectively preventing product damage and improving operational safety.
[0049] In addition, multiple through holes 201 are provided on the product mounting plate 2, which allows the fixture to install multiple long strip-shaped optical products at one time, thereby improving the production efficiency of the products.
[0050] In the above-mentioned cleaning fixture, the adjusting bolt 3 is vertically arranged, which includes a threaded rod 31 and an adjusting nut 32. The lower end of the threaded rod 31 is fixedly connected to the drain plate 1, and the upper end passes through the product mounting plate 2. At least two adjusting nuts 32 are provided on the threaded rod 31. The two adjusting nuts 32 clamp the product mounting plate 2 from above and below.
[0051] This structure enables height adjustment and secure locking of the product mounting plate 2, ensuring that products of different lengths can be used with this fixture. When the product is long, tighten the upper adjusting nut 32 to move it upwards, bringing the product mounting plate 2 up close to the upper adjusting nut 32. Then, tighten the lower adjusting nut 32 to move it upwards again, bringing it close to the moved product mounting plate 2, thus clamping and fixing the product mounting plate 2 and locking its height. When the product is short, tighten both adjusting nuts 32 downwards to adjust its height.
[0052] In the above structure, the adjusting bolt 3 also includes a fixing nut 33, wherein at least two fixing nuts 33 are provided on the threaded rod 31; the lower end of the threaded rod 31 passes through the drain plate 1, and the two fixing nuts 33 clamp the drain plate 1 from above and below. Through this structure, the lower end of the threaded rod 31 is fixedly connected to the drain plate 1, so that the bottom of the fixture has a stable supporting foundation and the overall structural strength of the fixture is improved.
[0053] In addition, the lower end of the threaded rod 31 extends downward to form the bottom of the fixing nut 33, thus forming a support leg structure. This support leg structure provides a spacious drainage space at the bottom of the fixture, facilitating the rapid discharge of wastewater.
[0054] In the above structure, the drain plate 1 includes a support frame 11 and a drain base plate 12. The support frame 11 is a hollow plate structure. The drain base plate 12 is located on top of the support frame 11, and the two are connected by a threaded rod 31 and a fixing nut 33. Several drain holes 121 are vertically arranged on the drain base plate 12, and the openings of the drain holes 121 are funnel-shaped. Adjacent drain holes 121 are connected by a guide groove 122, and the guide groove 122 is located at the top of the drain base plate 12.
[0055] In practical applications, the lower end of the product can be placed on the top of the overall drainage base plate 12, or it can be placed inside the flared opening of the drainage hole 121. Therefore, the drainage hole 121 and the through hole 201 are aligned vertically.
[0056] Through the design of the hollow support frame 11, the funnel-shaped drainage hole 121 and the guide groove 122, combined with the support leg structure, the drainage performance is further improved, effectively preventing water accumulation on the top of the drain plate 1, avoiding the contamination of the cleaned product by residual sewage, thereby significantly improving the cleaning quality and product yield.
[0057] The hollow structure is a grid-shaped hollow structure, which reduces the weight of the fixture and thus reduces damage to the cleaning equipment's platform.
[0058] Furthermore, in the above structure, the product mounting plate 2 includes a support plate 21 and a clamping plate 22. The support plate 21 is located at the bottom of the clamping plate 22, and the two are connected by a threaded rod 31 and an adjusting nut 32. The clamping plate 22 is a polytetrafluoroethylene plate with a first placement hole 221 and a second placement hole 211. The first placement hole 221 and the second placement hole 211 are aligned vertically to form a through hole 201. The through hole 201 is a round hole, and the inner diameter of the first placement hole 221 is smaller than the inner diameter of the second placement hole 211.
[0059] The support plate 21 provides structural support for the clamping plate 22, effectively preventing the clamping plate 22 from bending downwards under the gravity of the cleaning fluid, thus extending the service life of the fixture.
[0060] The drain base plate 12 can be made of the same material as the clamping plate 22 to prevent the bottom of the product from being scratched. Since the cleaning environment where the cleaning fixture is located may contain strong acid or alkali solutions, all components except the clamping plate 22 and the drain base plate 12 are made of SUS316 stainless steel.
[0061] In the above structure, there are four threaded rods 31 distributed in a matrix. The support frame 11, the drainage base plate 12, the support plate 21 and the clamping plate 22 are all provided with four through holes for the threaded rods 31 to pass through. The inner diameter of the through hole is greater than or equal to that of the threaded rod 31 to facilitate the smooth passage of the threaded rod 31.
[0062] When assembling the fixture, the support frame 11 and the drain base plate 12 are stacked one on top of the other. Then, the lower end of the threaded rod 31 is passed through the through hole of both. A fixing nut 33 is screwed onto each end of the threaded rod 31. The lower fixing nut 33 is then pressed tightly against the bottom of the support frame 11, and the other fixing nut 33 is pressed tightly against the top of the drain base plate 12. The support frame 11 and the drain base plate 12 are clamped and fixed by the two fixing nuts 33 to form the drain plate 1.
[0063] An adjusting nut 32 is screwed onto the upper end of the threaded rod 31, and its height is adjusted. The support plate 21 and the clamping plate 22 are stacked, and the upper end of the threaded rod 31 passes through the through hole of both. Then, another adjusting nut 32 is screwed onto the upper end of the threaded rod 31, and the adjusting nut 32 is screwed downwards, so that it and the adjusting nut 32 below clamp the support plate 21 and the clamping plate 22, thus forming the product mounting plate 2.
[0064] A method for using a cleaning fixture for elongated optical products according to this utility model includes the following steps:
[0065] S1. Immerse all the processed parts in NaOH solution to remove the processing slag from each part. After immersion for one hour, rinse with clean water. After rinsing, assemble the fixture. Then, perform ultrasonic cleaning on the assembled fixture to remove the residual solution.
[0066] S2. Place the cleaned fixture under a deionizer to dry it and remove static electricity. Then, take it to the cleaning process to prepare for the installation of long strip-shaped optical products.
[0067] S3. Insert the long strip-shaped optical product vertically into the through hole 201. After insertion, make the bottom end of the product contact the top of the drain plate 1.
[0068] S4. After loading a certain amount of products, the fixture and products are transferred as a whole to the cleaning tank of the cleaning equipment for cleaning. During the process, the products are completely immersed in the cleaning solution.
[0069] S5. After cleaning, drain and dry the product, then transfer it to the inspection room for appearance inspection. If the product surface quality is not up to standard after inspection, it needs to be cleaned again in the cleaning fixture.
[0070] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A cleaning fixture for elongated optical products, comprising a drain plate (1), characterized in that: It also includes a product mounting plate (2) and adjusting bolts (3), wherein, The product mounting plate (2) is height-adjustably mounted above the drain plate (1) via the adjusting bolt (3); The product mounting plate (2) is provided with a through hole (201) for vertically inserting a long strip-shaped optical product. The top of the drain plate (1) abuts against the bottom of the inserted elongated optical product to maintain the vertical state of the elongated optical product, so that the cleaning liquid can flow naturally down its surface and be discharged through the drain plate (1).
2. The cleaning fixture for elongated optical products as described in claim 1, characterized in that: The adjusting bolt (3) is set vertically.
3. The cleaning fixture for elongated optical products as described in claim 1, characterized in that: The adjusting bolt (3) includes a threaded rod (31) and an adjusting nut (32), wherein, The lower end of the threaded rod (31) is fixedly connected to the drain plate (1), and the upper end passes through the product mounting plate (2). At least two adjusting nuts (32) are provided on the threaded rod (31); The two adjusting nuts (32) clamp the product mounting plate (2) from above and below.
4. The cleaning fixture for elongated optical products as described in claim 3, characterized in that: The adjusting bolt (3) also includes a fixing nut (33), wherein, At least two fixing nuts (33) are provided on the threaded rod (31); The lower end of the threaded rod (31) passes through the drain plate (1), and the two fixing nuts (33) clamp the drain plate (1) from top to bottom.
5. The cleaning fixture for elongated optical products as described in claim 4, characterized in that: The lower end of the threaded rod (31) extends downward to the bottom of the fixing nut (33) below, forming a support leg structure.
6. The cleaning fixture for elongated optical products as described in claim 4, characterized in that: The drain plate (1) includes a support frame (11) and a drain base plate (12), wherein, The support frame (11) is a hollow plate-like structure; The leaking base plate (12) is located on the top of the support frame (11), and the two are connected by the threaded rod (31) and the fixing nut (33); The drain plate (12) has several drain holes (121) arranged vertically along its upper edge.
7. The cleaning fixture for elongated optical products as described in claim 6, characterized in that: The opening at the upper end of the water leakage hole (121) is shaped like a trumpet.
8. A cleaning fixture for elongated optical products as described in claim 6, characterized in that: Adjacent water leakage holes (121) are connected by a guide channel (122), wherein, The guide channel (122) is located at the top of the drain base plate (12).
9. A cleaning fixture for elongated optical products as described in claim 3, characterized in that: The product mounting plate (2) includes a support plate (21) and a clamping plate (22), wherein, The support plate (21) is located at the bottom of the clamping plate (22), and the two are connected by the threaded rod (31) and the adjusting nut (32); The clamping plate (22) is a polytetrafluoroethylene plate with a first placement hole (221) and the support plate (21) has a second placement hole (211). The first placement hole (221) and the second placement hole (211) are aligned vertically to form the through hole (201).
10. A cleaning fixture for elongated optical products as described in claim 9, characterized in that: The inner diameter of the first placement hole (221) is smaller than the inner diameter of the second placement hole (211).