A type of fixed spring gripper for a spin coater

Abstract

This utility model discloses a fixed spring gripper for a spin coater, relating to the field of lens spin coating technology. The proposed solution is as follows: A fixed spring gripper for a spin coater includes a connecting member, a cylinder mounted on the connecting member, and a gripper assembly mounted on the cylinder. The gripper assembly includes a gripper frame with through holes (two sets of through holes). A gripper post is slidably mounted within each through hole. A lower spring is mounted below each through hole on the gripper frame and is fixedly connected to the gripper post. An mounting head is mounted on each gripper post, and an upper spring is mounted on the outer side of the mounting head and is fixedly connected to the gripper frame. A threaded fixing hole is provided on the outer side of the gripper frame. The purpose of this utility model is to provide a fixed spring gripper for a spin coater, achieving quick gripper replacement and providing a buffer to prevent damage to different types of lenses being gripped.

Description

Technical Field

[0001] This utility model discloses a fixed spring gripper for a spin coating machine, which relates to the field of lens spin coating technology. Background Technology

[0002] Spin coating is a process that uses spin coating technology to coat a thin film onto the surface of a lens. This film can be a protective layer, optical coating, reflective film, anti-fog layer, scratch-resistant coating, etc. Spin coating ensures the uniformity and consistency of the coating, which has a significant impact on the functionality and aesthetics of the lens. This process is widely used in the manufacture of eyeglasses, camera lenses, displays, and other optical lenses. The basic principle of lens spin coating is similar to that of wafer spin coating, using centrifugal force to evenly distribute the coating on the lens surface. In the lens spin coating process, the transfer gripper (or clamping device, transport gripper) is one of the most important equipment components. Its main function is to ensure the safe and stable transfer of the lens inside the spin coater.

[0003] Because lenses are typically thin and easily damaged, the gripper system needs to be designed with high precision to ensure that the lenses are not subjected to pressure, deformation, or damage during handling. Different types of lenses are processed, and different grippers need to be changed according to their properties to meet the precision requirements of production. Traditionally, the entire gripper needs to be replaced, which is time-consuming and inefficient. Therefore, a fixed spring gripper for spin coating machines is needed to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a fixed spring gripper for a spin coater, which enables quick gripper replacement and provides a buffer to prevent damage to different types of lenses being held.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a fixed spring gripper for a spin coater, comprising a connector, a cylinder mounted on the connector, and a gripper assembly mounted on the cylinder; the gripper assembly includes a gripper frame, a through hole provided on the gripper frame, two sets of through holes, a gripper post slidably mounted in the through hole, a lower spring mounted below the through hole provided on the gripper frame, the lower spring being fixedly connected to the gripper post, an mounting head mounted on the gripper post, an upper spring provided on the outside of the mounting head, the upper spring being fixedly connected to the gripper frame, and a threaded fixing hole provided on the outside of the gripper frame.

[0006] Preferably, two sets of gripper groups are symmetrically arranged.

[0007] Preferably, the mounting head is threadedly connected to the claw post.

[0008] Preferably, the threaded fixing hole is located outside the through hole, and a positioning hole is provided on the outer surface of the claw post.

[0009] Preferably, a rubber pad is installed on the claw column.

[0010] Preferably, the relative movement of the gripper assembly is driven by the cylinder.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: the gripper assembly is driven by a cylinder to move inward or open relative to each other. The gripper moves to a designated position below it and then moves downward. The bottom of the gripper column will first abut against the worktable surface of the spin coater. The lens is located in the middle of the gripper assembly. The gripper continues to press down, the lower spring contracts, and the upper spring opens. Then the cylinder controls the two gripper assemblies to move simultaneously to position and clamp. This process can prevent the gripper from firmly holding the lens when it is holding it, and prevent the lens from falling off because the gripper cannot hold the entire side of the lens if it is too thin. After the lens is clamped, the gripper moves upward, the upper spring contracts and returns to its original state, and the lower spring opens and returns to its original state. Then the gripper assembly gently picks up the lens, providing a buffer force to make the clamping more accurate and reliable. At the same time, the gripper column is replaceable. The gripper column can be replaced with different designated gripper columns according to the type of lens to be clamped, so as to achieve quick gripper replacement and provide a buffer to prevent damage to different types of lenses. Attached Figure Description

[0012] Figure 1 A schematic diagram of a fixed spring gripper for a spin coater;

[0013] The following are the labeling elements in the figure:

[0014] 1. Connector; 2. Cylinder; 3. Gripper assembly; 31. Gripper holder; 32. Mounting head; 33. Gripper post; 34. Upper spring; 35. Lower spring; 36. Threaded fixing hole. Detailed Implementation

[0015] 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.

[0016] Specific implementation examples:

[0017] like Figure 1 As shown, a fixed spring gripper for a spin coater includes a connector 1, a cylinder 2 mounted on the connector 1, and a gripper assembly 3 mounted on the cylinder 2. Two gripper assemblies 3 are symmetrically arranged, and the cylinder 2 drives the gripper assemblies 3 to move relative to each other.

[0018] The connector 1 on the gripper is installed on the spin coater, and the spin coater is controlled by a motor to drive the gripper to move up and down. The cylinder 2 mainly drives the gripper assembly 3 to move inward or open. The distance and speed of the two gripper assemblies 3 are the same.

[0019] The gripper assembly 3 includes a gripper frame 31, on which through holes (two sets not shown in the figure) are provided. A gripper post 33 is slidably installed in the through holes. A lower spring 35 is installed below the through holes on the gripper frame 31. The lower spring 35 is fixedly connected to the gripper post 33. An installation head 32 is installed on the gripper post 33. An upper spring 34 is provided on the outside of the installation head 32. The upper spring 34 is fixedly connected to the gripper frame 31. A threaded fixing hole 36 is provided on the outside of the gripper frame 31.

[0020] To achieve quick disassembly and assembly, the mounting head 32 is threadedly connected to the claw post 33;

[0021] In practice, the claw post 33 is replaceable. Different designated claw posts 33 can be replaced according to the type of lens to be clamped. The claw post 33 is threadedly connected to the mounting head 32, making disassembly and assembly more convenient and reliable. During installation, simply tighten the mounting head 32.

[0022] The main function of the upper spring 34 and the lower spring 35 is to provide a buffer for the gripper. During operation, the gripper moves to its designated position and then moves downward. The bottom of the gripper column 33 first contacts the worktable surface of the spin coater. The lens is located in the middle of the gripper group 3. After the bottom of the gripper column 33 contacts the worktable surface of the spin coater, it continues to press down. The lower spring 35 contracts and the upper spring 34 opens. Then, the cylinder 2 controls the two gripper groups 3 to move simultaneously to position and clamp. This process can prevent the gripper from holding the lens securely and prevent the lens from falling off because the lens is too thin and the gripper cannot hold the entire side of the lens. After clamping the lens, the gripper moves upward, the upper spring 34 contracts and returns to its original state, and the lower spring 35 opens and returns to its original state. Then, the gripper group 3 gently picks up the lens, providing a buffer force to make the clamping more accurate and reliable.

[0023] The threaded fixing hole 36 is located outside the through hole, and the outer surface of the claw post 33 is provided with a positioning hole (not shown in the figure);

[0024] The purpose of the threaded fixing hole 36 is to quickly adjust the required length of the claw post 33. During installation, after selecting the appropriate length, align the center of the positioning hole with the center of the threaded fixing hole 36, and then fix it with screws.

[0025] A rubber pad (not shown in the figure) is installed on the claw post 33;

[0026] Lenses are precision workpieces. Excessive clamping force during handling may cause the lenses to deform or be damaged. Therefore, rubber pads are used to distribute the pressure and protect the lenses from deformation and damage due to excessive clamping force during handling.

[0027] In summary, the cylinder 2 drives the gripper assembly 3 to move inwards or open relative to each other. The gripper moves to its designated position below the set point and then moves downwards. The bottom end of its gripper column 33 first contacts the worktable surface of the spin coater. The lens is located in the middle of the gripper assembly 3. The gripper continues to press down, the lower spring 35 contracts, and the upper spring 34 opens. Subsequently, the cylinder 2 controls both gripper assemblies 3 to move simultaneously to position and clamp the lens. This process ensures that the gripper can firmly hold the lens, preventing the lens from being too thin and the gripper failing to hold the entire lens. The effect of the lens falling off due to the side is mitigated by the upward movement of the jaws after the lens is clamped. The upper spring 34 tightens and returns to its original state, while the lower spring 35 opens and returns to its original state. Then, the jaw assembly 3 gently picks up the lens, providing a buffering force to make the clamping more precise and secure. At the same time, the jaw post 33 is replaceable. Different specific jaw posts 33 can be replaced according to the type of lens to be clamped, thereby achieving quick jaw replacement and providing a buffer to prevent damage to different types of lenses.

[0028] The above description is merely a preferred embodiment of this application. The scope of protection of this application is not limited to the above embodiments. All technical solutions within this concept are within the scope of protection of this application. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of this application should also be considered within the scope of protection of this application.

Claims

1. A fixed spring gripper for a spin coater, comprising a connector (1), characterized in that: A cylinder (2) is mounted on the connector (1), and a gripper assembly (3) is mounted on the cylinder (2); The gripper assembly (3) includes a gripper frame (31), which has through holes. Two sets of through holes are provided. A gripper column (33) is slidably installed in the through holes. A lower spring (35) is installed below the through holes on the gripper frame (31). The lower spring (35) is fixedly connected to the gripper column (33). An mounting head (32) is installed on the gripper column (33). An upper spring (34) is provided on the outside of the mounting head (32). The upper spring (34) is fixedly connected to the gripper frame (31). A threaded fixing hole (36) is provided on the outside of the gripper frame (31).

2. The fixed spring gripper for a spin coater according to claim 1, characterized in that: The gripper group (3) is symmetrically arranged in two groups.

3. The fixed spring gripper for a spin coater according to claim 1, characterized in that: The mounting head (32) is threadedly connected to the claw post (33).

4. The fixed spring gripper for a spin coater according to claim 1, characterized in that: The threaded fixing hole (36) is located outside the through hole, and the claw post (33) has a positioning hole on its outer surface.

5. A fixed spring gripper for a spin coater according to claim 1, characterized in that: A rubber pad is installed on the claw post (33).

6. A fixed spring gripper for a spin coater according to claim 1, characterized in that: The cylinder (2) drives the gripper assembly (3) to move relative to each other.

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