Self-locking type polishing clamp suitable for rodlike lens
The design of the self-locking polishing fixture solves the problems of collapse and poor finish of rod-shaped parts during processing, achieves efficient and stable processing results, and is suitable for the mass production of rod lenses.
Patent Information
- Application Number
- CN202422799103.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Priority Date
- 2024-08-12
- Filing Date
- 2024-11-18
- Publication Date
- 2025-09-19
- Estimated Expiration
- 2034-11-18
AI Technical Summary
Existing polishing fixtures for rod-shaped parts have problems such as collapse, poor finish, unstable vibration, part displacement and aperture deformation during processing, making them difficult to adapt to mass production.
A self-locking polishing fixture is used, which is connected to the threaded connection between the telescopic clamp and the hem limit pressure head, combined with protective flannel to achieve stable clamping and surface protection of parts. The consumable parts are designed with POM material.
The processing stability and smoothness of the parts are improved, the processing accuracy and efficiency are ensured, and it is suitable for mass production of high-precision rod lenses.
Smart Images
Figure CN223353815U_ABST
Abstract
Description
Technical Field
[0001] The utility model discloses a self-locking polishing fixture suitable for a rod lens, belonging to the technical field of parts fixtures. Background Art
[0002] Common polishing methods for rod-shaped parts include the classic polishing method for small-diameter parts. For polishing curved surfaces, we typically use an asphalt polishing die. However, the asphalt on the die is susceptible to temperature and easily deforms, resulting in weak cutting force, unstable aperture on the processed curved surface of the lens, and difficulty in ensuring appearance. Furthermore, the asphalt on the die is easily consumed, requiring frequent die replacement. Furthermore, the asphalt's low grinding efficiency on the lens surface results in long processing times and low efficiency, making it unsuitable for mass production. Therefore, we often use a hem machine for processing. However, for specialized rod-shaped parts, especially those with a relatively large center thickness, it is difficult to process them using conventional polishing fixtures. Instead, we typically use a hem machine with direct pressure. However, this direct pressure method poses a risk of flying and crushing rod-shaped parts due to their high center of gravity, resulting in unnecessary losses.
[0003] Common rod-shaped parts polishing fixtures have the following problems:
[0004] 1. Since the center of gravity of rod-shaped parts is relatively high, it is impossible to ensure that the rod-shaped parts will not collapse during processing.
[0005] 2. The length of parts that can be placed in ordinary fixtures is too small, which can easily cause parts to fall.
[0006] 3. The thickness of the fixture between the part and the upper spindle is small, and the vibration generated by the upper spindle of the swing machine cannot be balanced.
[0007] 4. The lack of protection during loading and unloading affects the surface finish of the parts.
[0008] 5. Since the upper shaft pressure is almost directly transmitted to the parts, part displacement and aperture deformation are likely to occur during the polishing process.
[0009] The fixtures of traditional rod-shaped parts polishing equipment are relatively easy to handle when manufactured by tooling manufacturers. The parts can be placed in the fixture and can be used normally after leaving the factory. However, when customers use it later, when they need to process rod-shaped parts with small diameters and large center thicknesses, ordinary fixtures cannot ensure that the parts do not collapse. In addition, the parts are frequently loaded and unloaded, and the above problems are exposed when the parts have poor finish and collapsed edges during processing. Utility Model Content
[0010] In order to solve the problems existing in the prior art such as the collapse of parts during machining and the impact on the surface finish of parts, we propose a self-locking polishing fixture suitable for rod lenses.
[0011] The utility model is a self-locking polishing fixture suitable for rod lenses, which is characterized by: Figure 1 As shown, the polishing fixture includes:
[0012] A telescopic clamping block 1, wherein the telescopic clamping block 1 has a downward opening for clamping the part to be processed, and the outer wall of the telescopic clamping block 1 has threads on both sides;
[0013] The hem limit pressure head 2 has a groove with a downward opening and a thread;
[0014] The telescopic clamp 1 and the hem limit pressure head 2 are connected by threads, and the position of the telescopic clamp 1 in the groove of the hem limit pressure head 2 can be adjusted by the threads. The upper end of the telescopic clamp 1 is provided with an anti-adsorption air hole 3, and the lower side of the anti-adsorption air hole 3 is provided with a protective flannel 4.
[0015] The beneficial effects of the present invention are:
[0016] 1. The telescopic clamp and the hem limit pressure head are equipped with threads, which can adjust the length and lock firmly, which can reduce the shaking caused by vibration. The self-locking clamp is used to fix the rod-shaped parts instead of the separate fixing mode to ensure that the parts do not collapse.
[0017] 2. The protective flannel is in contact with the parts to ensure the smoothness and quality of the parts.
[0018] 3. The only wearing part of the device is the telescopic clamp, which is made of POM material and is easy to replace with low cost.
[0019] 4. The direct pressure method is used to drop the fixture to automatically calibrate the lens for processing, which has the effect of improving the aperture stability and Yas precision, and can quickly obtain the surface curvature of the lens. The operation is convenient and fast, and high-precision parts can be produced in large quantities, which greatly improves the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 This is a schematic cross-sectional view of the overall structure of the utility model, which also serves as an abstract drawing.
[0021] Figure 2 This is a schematic diagram of the sectional working condition of the overall structure of the present invention, in which the lower side of the interior of the telescopic clamping block 1 is provided with the parts to be processed and the polishing disc in sequence. DETAILED DESCRIPTION
[0022] The following is a specific implementation example of the present invention, which is described in detail with reference to the accompanying drawings. It should be noted that the scope of application of the present invention is not limited to the following embodiments, and all similar structures based on the present invention are within the scope of application of the present invention.
[0023] The utility model is a self-locking polishing fixture suitable for rod lenses, such as Figures 1-2 As shown, the polishing fixture includes:
[0024] A telescopic clamping block 1, wherein the telescopic clamping block 1 has a downward opening for clamping the part to be processed, and the outer wall of the telescopic clamping block 1 has threads on both sides;
[0025] The hem limit pressure head 2 has a groove with a downward opening and a thread;
[0026] The telescopic clamp 1 and the hem limit pressure head 2 are connected by threads, and the position of the telescopic clamp 1 in the groove of the hem limit pressure head 2 can be adjusted and locked by the threads. The upper end of the telescopic clamp 1 is provided with an anti-adsorption air hole 3 for facilitating the removal of parts, and a protective flannel 4 is provided on the lower side of the anti-adsorption air hole 3 to ensure smoothness while increasing elasticity.
[0027] The method of using the utility model is as follows:
[0028] Fix the telescopic clamp 1 and the hem limit pressure head 2 through threaded connection and adjust the height. Place the part to be processed in the opening of the telescopic clamp 1, screw in the threaded locking part, and start the equipment for processing.
Claims
1. A self-locking polishing fixture suitable for rod lenses, characterized in that: The polishing fixture includes: A telescopic clamping block (1), wherein the telescopic clamping block (1) has a downward opening for clamping a part to be processed, and both sides of the outer wall of the telescopic clamping block (1) have threads; A hem limit pressure head (2), wherein the hem limit pressure head (2) has a groove with a downward opening and a thread; The telescopic clamp (1) and the hem limit pressure head (2) are connected via threads, and the position of the telescopic clamp (1) in the groove of the hem limit pressure head (2) can be adjusted via the threads. An anti-adsorption vent (3) is provided at the upper end of the interior of the telescopic clamp (1), and a protective flannel (4) is provided on the lower side of the anti-adsorption vent (3).