Optical lens assembly tool

Abstract

The utility model relates to the technical field of optical lens assembly, in particular to an optical lens assembly tool which comprises a working table, a placing seat is rotatably arranged on the upper surface of the working table, a multi-step type mounting groove is formed in the placing seat, and the multi-step type mounting groove comprises a plurality of placing grooves which are concentrically arranged and have different diameters. A rotary driving mechanism for driving the placing seat is arranged on the workbench, a mounting frame is fixedly mounted on the workbench, an electric telescopic rod is mounted on the mounting frame, a driving end of the electric telescopic rod is fixedly connected with a lifting seat, a pressure head is mounted at the bottom of the lifting seat, and a flexible contact layer is arranged at the bottom of the pressure head; according to the utility model, the downward pressing stroke and force of the pressing head can be controlled through the electric telescopic rod, and the problem of overlarge or insufficient pressure caused by experience and proficiency difference during manual pressing is avoided, so that the situations that the lens is damaged due to overlarge pressure and the assembly is not in place due to insufficient pressure are effectively reduced, and the product percent of pass is improved.

Description

Technical Field

[0001] This utility model relates to the field of optical lens assembly technology, and more specifically to an optical lens assembly fixture. Background Technology

[0002] In the assembly process of optical lenses between the lens element and the lens barrel, the manual operation of a vacuum pick-up pen is currently widely used to pick up and press the lens element into place. This method uses a vacuum pick-up pen to adsorb the lens element and align it with the lens barrel, then relies on manual pressing to achieve an interference fit between the lens element and the lens barrel. However, this traditional assembly method has many insurmountable drawbacks.

[0003] First, manual operation relies on the experience and skill of workers. The pressure and stroke during pressing are difficult to control precisely, easily leading to lens breakage due to excessive pressure or improper assembly due to insufficient pressure, severely impacting product yield. Second, the adsorption stability of the vacuum suction pen is affected by factors such as lens surface cleanliness and adsorption position. Lens misalignment or falling during transfer or pressing may occur, resulting in assembly accuracy errors and affecting the imaging quality of the optical lens. Furthermore, manual single-press operation cannot ensure uniform circumferential force on the lens. Uneven force on the mating surfaces of the lens barrel and lens can easily cause eccentricity or gaps, creating aberrations in the optical system. Simultaneously, manual operation is inefficient, failing to meet the speed and consistency requirements of mass production, and prolonged operation can lead to worker fatigue, further exacerbating fluctuations in assembly quality. Utility Model Content

[0004] The purpose of this utility model is to provide an optical lens assembly fixture to reduce lens damage caused by excessive pressure and incomplete assembly caused by insufficient pressure, thereby improving the product qualification rate.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] An optical lens assembly fixture includes a worktable, a placement seat rotatably mounted on the upper surface of the worktable, a multi-step mounting groove with multiple concentric grooves of different diameters, a rotation drive mechanism for driving the placement seat on the worktable, a mounting frame fixedly mounted on the worktable, an electric telescopic rod mounted on the mounting frame, a lifting seat fixedly connected to the drive end of the electric telescopic rod, a pressure head mounted at the bottom of the lifting seat, and a flexible contact layer at the bottom of the pressure head.

[0007] Furthermore, the flexible contact layer is made of one of silicone, polyurethane, or fluororubber.

[0008] Furthermore, the groove opening of the placement slot is chamfered.

[0009] Furthermore, an elastic limiting ring is fixedly connected to the bottom of the placement groove near the side wall of the placement groove, and the elastic limiting ring is made of rubber.

[0010] Furthermore, the outer wall of the elastic limiting ring is provided with anti-slip texture.

[0011] Furthermore, an annular groove is provided on the worktable, and an annular limiting block is slidably connected in the annular groove. The annular limiting block is fixedly connected to the bottom of the placement seat.

[0012] Furthermore, the rotary drive mechanism includes a drive motor installed at the bottom of the worktable, the output shaft of the drive motor is driven by a gear, and an annular rack is fixedly sleeved on the outer wall of the placement seat, the annular rack meshing with the gear.

[0013] Furthermore, a guide rod is vertically fixed between the workbench and the mounting frame, and the lifting seat is slidably sleeved on the guide rod.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This invention uses an electric telescopic rod to control the downward stroke and force of the pressure head, avoiding the problem of excessive or insufficient pressure caused by differences in experience and skill when pressing manually. This effectively reduces the occurrence of lens damage due to excessive pressure and improper assembly due to insufficient pressure, thereby improving the product qualification rate. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a partial sectional view of the present invention.

[0018] 1. Workbench; 101. Annular chute; 2. Placement seat; 201. Placement slot; 3. Mounting frame; 4. Electric telescopic rod; 5. Lifting seat; 6. Pressure head; 7. Flexible contact layer; 8. Elastic limit ring; 9. Annular limit block; 10. Drive motor; 11. Gear; 12. Annular rack; 13. Guide rod. Detailed Implementation

[0019] like Figure 1 and Figure 2As shown, an optical lens assembly fixture includes a worktable 1, a placement seat 2 rotatably mounted on the upper surface of the worktable 1, a multi-step mounting groove on the placement seat 2, the multi-step mounting groove including a plurality of placement grooves 201 of different diameters arranged concentrically, a rotation drive mechanism for driving the placement seat 2 on the worktable 1, a mounting frame 3 fixedly mounted on the worktable 1, an electric telescopic rod 4 mounted on the mounting frame 3, a lifting seat 5 fixedly connected to the drive end of the electric telescopic rod 4, a pressure head 6 mounted on the bottom of the lifting seat 5, and a flexible contact layer 7 provided on the bottom of the pressure head 6.

[0020] The flexible contact layer 7 is made of one of silicone, polyurethane or fluororubber.

[0021] The groove opening of the placement slot 201 is chamfered.

[0022] An elastic limiting ring 8 is fixedly connected to the bottom of the placement groove 201 near the side wall of the placement groove 201. The elastic limiting ring 8 is made of rubber. The lens barrel is placed in the placement groove 201, and the side wall of the lens barrel is located between the side wall of the placement groove 201 and the elastic limiting ring 8, so that the lens barrel is stuck between the side wall of the placement groove 201 and the elastic limiting ring 8. When the placement seat 2 rotates, it can drive the lens barrel to rotate.

[0023] The outer wall of the elastic limiting ring 8 is provided with anti-slip texture.

[0024] The workbench 1 is provided with an annular slide groove 101, and an annular limiting block 9 is slidably connected in the annular slide groove 101. The annular limiting block 9 is fixedly connected to the bottom of the placement seat 2.

[0025] The rotary drive mechanism includes a drive motor 10 installed at the bottom of the workbench 1. The output shaft of the drive motor 10 is connected to a gear 11. An annular rack 12 is fixedly sleeved on the outer side wall of the placement seat 2. The annular rack 12 meshes with the gear 11.

[0026] A guide rod 13 is vertically fixed between the workbench 1 and the mounting frame 3, and the lifting seat 5 is slidably sleeved on the guide rod 13.

[0027] Working principle:

[0028] The lens barrel is placed in the multi-step mounting groove of the mounting base 2. A suitable mounting groove 201 is selected according to the diameter of the lens barrel, and the lens barrel is fixed by the elastic limiting ring 8. The optical lens is placed at the opening of the lens barrel. The electric telescopic rod 4 drives the lifting base 5 to descend, which drives the pressure head 6 to press down. The flexible contact layer 7 at the bottom of the pressure head 6 contacts the lens and applies pressure to complete the first pressing. Then the electric telescopic rod 4 drives the pressure head 6 to rise. Then the drive motor 10 drives the gear 11 to rotate. The gear 11 meshes with the ring rack 12, which drives the mounting base 2 to rotate a certain angle. The electric telescopic rod 4 drives the pressure head 6 to press down again. This process is repeated to ensure that the lens is completely pressed into the lens barrel and has an interference fit with the lens barrel to complete the assembly.

[0029] This invention, through the coordinated operation of components such as the electric telescopic rod 4, the rotary drive mechanism, the multi-step mounting groove, the elastic limiting ring 8, and the flexible contact layer 7, fundamentally solves the problems of difficulty in controlling force and stroke, unstable adsorption, uneven circumferential force, and low efficiency in the prior art when manually operating a vacuum suction pen to assemble lenses and lens barrels. This significantly improves the assembly quality and production efficiency. The multi-step mounting groove can accommodate lens barrels of different diameters, eliminating the need for frequent tooling changes, thus improving the tooling's versatility and adaptability and reducing production costs. The design of the elastic limiting ring 8 and the flexible contact layer 7 also allows the tooling to adapt to lens barrels and lenses of different materials and surface conditions, further expanding its application range.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An optical lens assembly fixture, characterized in that: The device includes a workbench (1), on the upper surface of which a placement seat (2) is rotatably mounted. The placement seat (2) has a multi-step mounting groove, which includes multiple placement grooves (201) of different diameters arranged concentrically. The workbench (1) is provided with a rotation drive mechanism to drive the placement seat (2). The workbench (1) is fixedly mounted with a mounting frame (3), and an electric telescopic rod (4) is mounted on the mounting frame (3). The driving end of the electric telescopic rod (4) is fixedly connected to a lifting seat (5). A pressure head (6) is mounted on the bottom of the lifting seat (5), and a flexible contact layer (7) is provided on the bottom of the pressure head (6).

2. The optical lens assembly fixture as described in claim 1, characterized in that: The flexible contact layer (7) is made of one of silicone, polyurethane or fluororubber.

3. The optical lens assembly fixture as described in claim 1, characterized in that: The groove opening of the placement slot (201) is chamfered.

4. The optical lens assembly fixture as described in claim 1, characterized in that: An elastic limiting ring (8) is fixedly connected to the bottom of the placement groove (201) near the side wall of the placement groove (201), and the elastic limiting ring (8) is made of rubber.

5. The optical lens assembly fixture as described in claim 4, characterized in that: The outer wall of the elastic limiting ring (8) is provided with anti-slip texture.

6. The optical lens assembly fixture as described in claim 1, characterized in that: The workbench (1) is provided with an annular groove (101), and an annular limiting block (9) is slidably connected in the annular groove (101). The annular limiting block (9) is fixedly connected to the bottom of the placement seat (2).

7. The optical lens assembly fixture as described in claim 6, characterized in that: The rotary drive mechanism includes a drive motor (10) installed at the bottom of the workbench (1). The output shaft of the drive motor (10) is connected to a gear (11). An annular rack (12) is fixedly sleeved on the outer side wall of the placement seat (2). The annular rack (12) meshes with the gear (11).

8. The optical lens assembly fixture as described in claim 1, characterized in that: A guide rod (13) is vertically fixed between the workbench (1) and the mounting frame (3), and the lifting seat (5) is slidably sleeved on the guide rod (13).

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