CN222038442U

CN222038442U - A positioning fixture for lens processing

Info

Publication number: CN222038442U
Application number: CN202323396665.2U
Authority: CN
Inventors: 李成; 王杰; 查智勇
Original assignee: Chengdu Yunying Fangtang Technology Co ltd
Current assignee: Chengdu Yunying Fangtang Technology Co ltd
Priority date: 2023-12-13
Filing date: 2023-12-13
Publication date: 2024-11-22
Anticipated expiration: 2033-12-13

Abstract

The utility model discloses a positioning clamp for lens processing, which comprises a base, a supporting plate, a moving plate and a clamping piece, wherein a first rotating shaft is rotatably arranged on the supporting plate, a second rotating shaft is rotatably arranged on the moving plate, and the clamping piece is arranged on both the first rotating shaft and the second rotating shaft. The backup pad and base fixed connection are provided with the recess on the base, are provided with the screw rod in the recess, are provided with the lug on the movable plate, and the screw hole cooperates with the screw rod screw thread. The clamping piece comprises an arc-shaped block and a fixed block, and the arc-shaped block is rotationally connected with the fixed block; be provided with the through-hole on the arc piece, be provided with spacing hole on the fixed block, be provided with the internal thread in the spacing hole, be provided with the screw in the through-hole, screw and spacing hole threaded connection. The clamping piece can rotate, and after the machining of one machining surface of the lens is finished, the driving motor is started to enable the lens to rotate 180 degrees, so that the machining surface of the lens can be adjusted, the lens is not required to be clamped again, and the machining efficiency is improved.

Description

Positioning clamp for lens processing

Technical Field

The utility model relates to the technical field of lens processing, in particular to a positioning clamp for lens processing.

Background

Optical lenses are optical components used for motion picture cameras and projectors to produce images. A fixture is a device used to hold a work object in place during machine manufacturing, also known as a fixture. In a broad sense, a fixture may be defined as a device for quickly, conveniently, and safely mounting a workpiece during any procedure in a process.

In modern lens machining, the use of positioning fixtures has become increasingly common. By using the positioning clamp, the precision and efficiency of lens processing are obviously improved, and meanwhile, the quality and performance of products can be better ensured. Along with the continuous development and progress of the technology, the design and manufacturing technology of the positioning clamp is also continuously improved and perfected, and powerful support is provided for the rapid development of the lens processing industry.

The utility model patent with publication number CN217992306U (hereinafter referred to as 'prior art 1') discloses a positioning and clamping device for optical lens production and processing, wherein the prior art 1 adopts a design that a connection mode between a thread adjusting rod and an L-shaped connecting plate is in threaded connection in the device, so that the position of processing can be corrected by rotating the thread adjusting rod in time, and the problem of inconvenient adjustment of the position is solved. However, when both sides of the lens need to be processed, in the prior art 1, the lens can only be taken down and then turned over to be positioned and clamped again, the process operation is complex, the consumed time is long, the production time of the lens is increased, and the production efficiency is reduced.

Disclosure of utility model

The utility model provides a positioning clamp for lens machining, which is used for solving the problems that in the prior art, when a lens is machined on two sides, the lens is required to be disassembled to clamp the lens again, the machined surface of the lens is inconvenient to adjust, and the production efficiency is reduced.

The technical scheme of the utility model is as follows:

A positioning fixture for lens processing comprises a base, a support plate, a movable plate and clamping pieces, wherein the support plate and the movable plate are arranged on the base, a first rotating shaft is arranged on the support plate in a rotating mode, a second rotating shaft is arranged on the movable plate in a rotating mode, and the clamping pieces are arranged on the first rotating shaft and the second rotating shaft.

The support plate is provided with a driving motor, and an output shaft of the driving motor is connected with the first rotating shaft; the support plate is fixedly connected with the base, a groove is formed in the base, a screw is arranged in the groove, and the screw is rotationally connected with the groove; the movable plate is provided with a lug, the lug is provided with a threaded hole, the threaded hole is in threaded fit with the screw rod, and the lug is in sliding fit with the groove.

The clamping piece comprises an arc-shaped block and a fixed block, and the arc-shaped block is rotationally connected with the fixed block; be provided with the through-hole on the arc piece, be provided with spacing hole on the fixed block, be provided with the internal thread in the spacing hole, be provided with the screw in the through-hole, screw and spacing hole threaded connection.

In a preferred technical scheme, be provided with arresting gear on the base, arresting gear includes locking piece, fixed body and locking bolt, and the fixed body is connected with the base, locking piece and fixed body sliding fit are provided with the regulation hole on the fixed body, are provided with the internal thread on the regulation hole, locking bolt and regulation hole threaded connection, and locking bolt is used for adjusting the distance between the locking piece.

In a preferred embodiment, the surface of the locking piece is roughened.

In a preferred technical scheme, an anti-slip pad is arranged on the cambered surface of the cambered block, and the anti-slip pad is made of an elastic material.

In a preferred technical scheme, the arc-shaped block is provided with a buffer pad, and the buffer pad is made of elastic materials.

In a preferred embodiment, the end of the screw is provided with a turning handle.

In a preferred technical scheme, a stabilizing plate is arranged on the moving plate, and the bottom surface of the stabilizing plate is in contact with the base.

The beneficial effects of the utility model are as follows:

The clamping piece can rotate, and after the machining of one machining surface of the lens is finished, the driving motor is started to enable the lens to rotate 180 degrees, so that the machining surface of the lens can be adjusted, the lens is not required to be clamped again, and the machining efficiency is improved.

The distance between the movable plate and the supporting plate is adjusted by rotating the screw rod, so that the lenses with different diameters can be clamped and fixed, and the applicability of the positioning clamp is improved.

Through rotating the arc piece, can adjust positioning fixture's structure, make clamping piece can press from both sides the upper and lower two machined surfaces that the fixed camera lens has/unprocessed, the staff of being convenient for processes the side of camera lens, improves positioning fixture's commonality.

Drawings

FIG. 1 is a schematic diagram of one of the structures of the present utility model;

FIG. 2 is a cross-sectional view of the present utility model;

FIG. 3 is an enlarged schematic view of FIG. 2 at A;

FIG. 4 is a side view of the present utility model;

FIG. 5 is an enlarged schematic view at B in FIG. 4;

FIG. 6 is a second schematic diagram of the structure of the present utility model;

FIG. 7 is an enlarged schematic view at C in FIG. 6;

fig. 8 is an enlarged schematic view at D in fig. 6.

Reference numerals: 100-base, 110-groove, 120-screw, 121-rotating handle, 200-supporting plate, 300-moving plate, 310-bump, 320-stabilizing plate, 400-arc block, 401-through hole, 402-anti-slip pad, 403-buffer pad, 410-fixed block, 411-limit hole, 420-screw, 500-driving motor, 600-locking block, 610-fixed body, 611-adjusting hole, 620-locking bolt, 700-first rotating shaft, 710-second rotating shaft.

Detailed Description

Specific embodiments of the present utility model will be described in detail below with reference to the accompanying drawings in the embodiments of the present utility model:

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship between the components, the movement condition, etc. in a specific posture, and if the specific posture is changed, the directional indicator is correspondingly changed.

Furthermore, the descriptions of the "first," "second," and the like in this patent are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly including at least one such feature.

In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Example 1

As shown in fig. 1, 2 and 6, a positioning fixture for lens processing includes a base 100, a support plate 200, a moving plate 300 and a clamping member, where the support plate 200 and the moving plate 300 are disposed on the base 100, a first rotating shaft 700 is rotatably disposed on the support plate 200, a second rotating shaft 710 is rotatably disposed on the moving plate 300, and the clamping member is disposed on both the first rotating shaft 700 and the second rotating shaft 710.

The supporting plate 200 is provided with a driving motor 500, and an output shaft of the driving motor 500 is connected with a first rotating shaft 700; the support plate 200 is fixedly connected with the base 100, the base 100 is provided with a groove 110, a screw 120 is arranged in the groove 110, and the screw 120 is rotationally connected with the groove 110; the moving plate 300 is provided with a protruding block 310, the protruding block 310 is provided with a threaded hole, the threaded hole is in threaded fit with the screw 120, and the protruding block 310 is in sliding fit with the groove 110.

The clamping piece comprises an arc-shaped block 400 and a fixed block 410, and the arc-shaped block 400 is rotationally connected with the fixed block 410; the arc-shaped block 400 is provided with a through hole 401, the fixed block 410 is provided with a limiting hole 411, an internal thread is arranged in the limiting hole 411, a screw 420 is arranged in the through hole 401, and the screw 420 is in threaded connection with the limiting hole 411.

The first rotation shaft 700 is rotatably coupled to the support plate 200 through a bearing, and the second rotation shaft 720 is rotatably coupled to the moving plate 300 through a bearing.

The fixed block 410 of one clamping member is fixedly connected with the end surface of the first rotating shaft 700, and the fixed block 410 of the other clamping member is fixedly connected with the end surface of the second rotating shaft 710.

As shown in fig. 3 and 8, when the present utility model is used, the distance between the two opposite arc blocks 400 is adjusted by rotating the screw 120, so that lenses with different diameters can be clamped. Before use, the screw 420 passes through the through hole 401 and is in threaded connection with the limiting hole 411, so that the arc-shaped block 400 is fixed, and the arc-shaped block 400 is prevented from rotating. After finishing the processing of the processing surface with the lens facing upwards, the driving motor 500 is started to enable the lens clamped by the arc-shaped block 400 to rotate 180 degrees, the processing surface is adjusted, clamping is not required again, and the processing efficiency is improved.

As shown in fig. 4 and 5, when the lens is processed, it is found that the defect exists on the side surface of the lens, and the lens is processed (such as cutting, grinding, etc.), after the lens is disassembled, the screw 420 is screwed out from the limiting hole 411, and then the two arc blocks 400 connected to the same fixed block 410 are rotated upwards or downwards by 90 ° respectively, so that the axes of the through holes 401 of the two arc blocks 400 are collinear. An elongated bolt (diameter of the through hole 401 is equal to or smaller than the diameter of the through hole 401) having a length larger than the sum of the lengths of the two through holes 401 is then used to pass through the two through holes 401 (threaded portion of the elongated screw is passed through), and a nut is used to screw-fit the elongated screw to prevent the two arc blocks 400 from rotating. After the above operation is completed, the machined surface of the lens is brought into contact with the clamping member, the lens is fastened and fixed by adjusting the position of the moving plate 300, and the driving motor 500 is started to rotate the lens, so that the side surface of the lens is machined.

Example two

As shown in fig. 6 and 7, in the present embodiment, a braking device is provided on the base 100, the braking device includes a locking block 600, a fixing body 610 and a locking bolt 620, the fixing body 610 is connected with the base 100, the locking block 600 is slidably matched with the fixing body 610, an adjusting hole 611 is provided on the fixing body 610, an internal thread is provided on the adjusting hole 611, the locking bolt 620 is in threaded connection with the adjusting hole 611, and the locking bolt 620 is used for adjusting the distance between the locking blocks 600. Through unscrewing or screwing the locking bolt 620, the distance between the two locking blocks 600 can be adjusted, the screw 120 is fixed or loosened, after the screw 120 is rotated to adjust the distance between the movable plate 300 and the support plate 200 to clamp the lens, a worker can fix the screw 120 by screwing the locking bolt 620, so that the screw 120 is prevented from falling when the screw 120 rotates in the lens processing process.

Example III

In this embodiment, the surface of the lock block 600 is roughened. The rough surface can be formed by sanding, so that the roughness of the surface of the locking block 600 is increased, and the purpose is to increase the friction between the locking block 600 and the screw 120 and improve the fixing effect of the locking block 600 to the screw 120.

Example IV

As shown in fig. 8. In this embodiment, the cambered surface of the cambered block 400 is provided with a non-slip mat 402, and the non-slip mat 402 is made of an elastic material. The elastic material can be rubber or silica gel. When the lens is clamped by the positioning clamp, the elastic material is stressed to deform, so that the contact area between the elastic material and the lens is increased, the friction force is increased, and the lens is prevented from being displaced during processing, and the processing effect is influenced.

Example five

As shown in fig. 5 and 8, in the present embodiment, a cushion pad 403 is provided on the arc-shaped block 400, and the cushion pad 403 is made of an elastic material. When the lens is clamped by using the positioning jig, the side surface of the lens is processed (e.g., cut, ground, etc.). The function of the cushion pad 403 is to prevent the machined lens surface from directly contacting the arcuate block 400, causing damage to the machined surface.

Example six

As shown in fig. 1 and 4, in the present embodiment, the end of the screw 120 is provided with a turning handle 121. Providing a twist grip 121 can facilitate a worker to twist the screw 120, thereby facilitating adjustment and manipulation of the screw 120. The rotating handle 121 may be made of a metal material such as stainless steel, iron, etc., has high strength and wear resistance, and can withstand high load and high frequency rotation. In addition, the turning handle 121 may be subjected to surface treatment such as chrome plating, plastic spraying, etc. to improve its aesthetic appearance and corrosion resistance.

Example seven

As shown in fig. 1 and 4, in the present embodiment, a stabilizing plate 320 is provided on the moving plate 300, and the bottom surface of the stabilizing plate 320 is in contact with the base 100. The stabilizing plate 320 is used for increasing the contact area between the moving plate 300 and the base 100, and sharing the force born by the moving plate 300, so as to prevent the moving plate 300 from tilting when clamping the lens.

The foregoing embodiments have been provided for the purpose of illustrating the general principles of the present utility model, including by way of example only, and not by way of limitation, any modifications, equivalents, or improvements thereto should be construed as falling within the spirit and scope of the present utility model.

Claims

1. A positioning fixture for lens processing, its characterized in that: the device comprises a base (100), a supporting plate (200), a moving plate (300) and clamping pieces, wherein the supporting plate (200) and the moving plate (300) are arranged on the base (100), a first rotating shaft (700) is rotatably arranged on the supporting plate (200), a second rotating shaft (710) is rotatably arranged on the moving plate (300), and the clamping pieces are arranged on the first rotating shaft (700) and the second rotating shaft (710);

A driving motor (500) is arranged on the supporting plate (200), and an output shaft of the driving motor (500) is connected with the first rotating shaft (700); the support plate (200) is fixedly connected with the base (100), the base (100) is provided with a groove (110), a screw (120) is arranged in the groove (110), and the screw (120) is rotationally connected with the groove (110); the movable plate (300) is provided with a lug (310), the lug (310) is provided with a threaded hole, the threaded hole is in threaded fit with the screw (120), and the lug (310) is in sliding fit with the groove (110);

The clamping piece comprises an arc-shaped block (400) and a fixed block (410), and the arc-shaped block (400) is rotationally connected with the fixed block (410); be provided with through-hole (401) on arc piece (400), be provided with spacing hole (411) on fixed block (410), be provided with the internal thread in spacing hole (411), be provided with screw (420) in through-hole (401), screw (420) and spacing hole (411) threaded connection.

2. The positioning fixture for lens processing according to claim 1, wherein: be provided with arresting gear on base (100), arresting gear includes locking piece (600), fixed body (610) and locking bolt (620), fixed body (610) are connected with base (100), locking piece (600) and fixed body (610) sliding fit are provided with regulation hole (611) on fixed body (610), be provided with the internal thread on regulation hole (611), locking bolt (620) and regulation hole (611) threaded connection, locking bolt (620) are used for adjusting the distance between locking piece (600).

3. A positioning fixture for lens machining according to claim 2, wherein: the surface of the locking block (600) is a rough surface.

4. The positioning fixture for lens processing according to claim 1, wherein: an anti-slip pad (402) is arranged on the cambered surface of the cambered block (400), and the anti-slip pad (402) is made of an elastic material.

5. The positioning fixture for lens processing according to claim 1, wherein: the arc-shaped block (400) is provided with a cushion pad (403), and the cushion pad (403) is made of elastic materials.

6. The positioning fixture for lens processing according to claim 1, wherein: the end of the screw rod (120) is provided with a rotary handle (121).

7. The positioning fixture for lens processing according to claim 1, wherein: the moving plate (300) is provided with a stabilizing plate (320), and the bottom surface of the stabilizing plate (320) is in contact with the base (100).