CN211784209U

CN211784209U - Test fixture of accurate mould pressing lens

Info

Publication number: CN211784209U
Application number: CN202020592283.4U
Authority: CN
Inventors: 宋敏; 吴梦; 张娇龙; 邱超; 黄国雅
Original assignee: Hubei New Huaguang Information Materials Co Ltd
Current assignee: Hubei New Huaguang Information Materials Co Ltd
Priority date: 2020-04-20
Filing date: 2020-04-20
Publication date: 2020-10-27
Anticipated expiration: 2030-04-20

Abstract

The utility model discloses a test fixture of accurate mould pressing lens belongs to optical accurate mould pressing lens test technical field. The tool mainly solves the problems that the existing tool for fixing and clamping the range cannot meet the requirements of use and low utilization rate due to large or small outer diameter and edge thickness. It is mainly characterized in that: a ferrule portion including a fixed thickness, a fixed gap, and an increasing inner diameter, a base portion for supporting the ferrule portion, and a thimble portion; the base part is provided with at least one thimble hole corresponding to each layer of ferrule; the thimble is matched with the thimble hole. The thimble is drawn and inserted in the selected thimble hole to drive the continuous ferrules to freely stretch and retract, the height difference of the selected ferrules is freely controlled, the clamping requirement is quickly met, and the test of lenses with different specifications in the clamping range is met.

Description

Test fixture of accurate mould pressing lens

Technical Field

The utility model belongs to the technical field of the accurate mould pressing lens test of optics, concretely relates to test fixture of accurate mould pressing lens.

Background

The testing tool is a main structural device used for ensuring that the eccentricity and the inclination of the optical lens to be tested can be controlled within a small deviation range before testing. At present, the optical precision molded lens test generally adopts a tool with a fixed clamping range, the tool needs to be manufactured again when the specification of the lens is newly increased, the tool cannot be used when the consistency of the lens with the same specification is poor, if the outer diameter and the edge thickness are larger or smaller, the utilization rate is low, and the tool is shown in an attached drawing 1.

Disclosure of Invention

The to-be-solved technical problem of the utility model is to provide a can effectively adjust the clamping scope, the test fixture of the accurate mould pressing lens of clamping fast.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a test fixture of precision mould pressing lens which characterized in that: a ferrule portion including a fixed thickness, a fixed gap, and an increasing inner diameter, a base portion for supporting the ferrule portion, and a thimble portion; the base part is provided with at least one thimble hole corresponding to each layer of ferrule; the thimble is matched with the thimble hole. When the specification of the newly added lens or the original lens is changed, the quick clamping can be finished only by reselecting and ejecting a proper ferrule and controlling the height difference between the ejected ferrules.

Furthermore, the ferrule part is arranged in the fixed ferrule, and the gap between the ferrule part and the fixed ferrule is the same as the gap between each layer of ferrules; the base portion is secured to the lower portion of the retaining collar.

Furthermore, the thimble is a flat thimble with scales, and the ejection height of the ferrule and the ejection height difference between the two ferrules are controlled according to the scales on the thimble.

Furthermore, the base part is provided with two thimble holes corresponding to each layer of ferrule, the thimble holes are positioned on the diameter of the layer of ferrule, and the thimble holes of each layer of ferrule are spirally arranged on the base to prevent the thimble holes on the base from being broken due to overlarge aperture or too close distance. The vertical drawing and inserting of the thimble is ensured by the depth of the thimble hole.

Furthermore, the thimble part consists of two flat thimble with scales and the same size, and the ejection height of the ferrule and the ejection height difference between the two ferrules are controlled according to the scales on the thimble.

Furthermore, the shape of the lower part of the base is consistent with the shape of the mounting position of the test equipment to be mounted, and the base can be manufactured by combining the size of the mounting position of the test equipment, so that the condition that the base is not suitable for being used by the same equipment is met.

Further, the base is in a step cylinder shape with an axial through hole, and the upper part of the base is fixedly connected with the lower part of the fixed ferrule.

The utility model has the advantages that: according to the tool for testing the precision molded lens, the two ejector pins are simultaneously pulled out and inserted into the selected ejector pin holes to drive the continuous ferrules to freely stretch and retract, the height difference between the selected ferrules is freely controlled, and the tool clamp device for quickly clamping different specifications of lens tests in a clamping range is met.

Drawings

Fig. 1 is a schematic view of the fixture device of the present invention, which is not adjustable in clamping range.

Fig. 2 is a schematic top view of the clamping range of the tool holder device replaced by the present invention.

Fig. 3 is a schematic structural view of the front view of the testing tool for the precision molded lens of the present invention, which is not jacked up by the thimble.

Fig. 4 is a schematic top view of the testing tool for precision molded lenses not jacked up by the thimble according to the present invention.

Fig. 5 is a schematic structural view of the main view of the testing tool for the precision molded lens after the thimble is pushed into the thimble hole of the base.

Fig. 6 is a schematic view of the overlooking structure of the testing tool for the precision molded lens after the thimble is pushed into the thimble hole of the base.

Fig. 7 is a schematic view of the structure of the test fixture for the precision mold pressing lens of the workpiece to be tested after the ferrule is ejected.

Fig. 8 is a schematic view of the top view structure of the testing tool for the precision mold-pressed lens of the workpiece to be tested after the ferrule is ejected.

Labeled as: ferrule 1, thimble 2, base 3, thimble hole 4.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

As shown in fig. 3-8, the tooling for testing precision press-molding lens comprises a ferrule 1 part with fixed thickness, fixed clearance and increasing inner diameter, a base 3 for supporting the ferrule 1 part, a fixed ferrule and a thimble 2 part. The base 3 is provided with two thimble holes 4 corresponding to each layer of ferrule 1, the thimble holes 4 of each layer of ferrule 1 are arranged spirally on the base 3, and the thimble holes 4 on the base 3 are prevented from being broken due to overlarge aperture or too close distance. The vertical drawing and inserting of the thimble 2 is ensured by the depth of the thimble hole 4. The base 3 is in a step cylinder shape with an axial through hole, the upper part of the base 3 is fixedly connected with the lower part of the fixed ferrule, and the shape of the lower part of the base 3 is consistent with the shape of the mounting position of the test equipment to be mounted, so that the base can be used by being mounted in combination with the test equipment. The thimble 2 is composed of two flat-head thimbles with scales and the same size, the thimble 2 is matched with the thimble hole 4, and the ejection height of the ferrule 1 and the ejection height difference between the two ferrules 1 are controlled according to the scales on the thimble 2. The ferrule 1 is partially arranged in the fixed ferrule, and the gap between the ferrule 1 and the fixed ferrule is the same as the gap between each layer of ferrule 1. Two ferrules 1 are ejected out simultaneously when the lens is used (two ferrules 1 are ejected out generally according to the specification of a conventional lens, a plurality of ferrules 1 can be ejected out according to different requirements, for example, two ferrules are ejected out), the corresponding ferrules 1 are selected according to the diameter and the edge thickness of the lens to be measured, and the height difference between the ferrules 1 is controlled.

When the quick clamping device is used, a proper ferrule group is selected according to the diameter, the edge thickness and the tolerance range of the lens to be tested, the thickness and the inner diameter of the ferrule 1 and the gap size of the ferrule 1 are combined, and the ejector pins 2 are used for sequentially ejecting out required heights, so that the quick clamping requirement can be met.

Wherein, the selected ferrule group is used for supporting and bearing the lens to be measured, and the eccentricity and the inclination value of the lens to be measured are controlled in a small range. The ferrule 1 is made of a material for ensuring that the ferrule can be ejected smoothly, and a small gap between the ferrules 1 is used for ensuring that the ejected ferrule 1 cannot be changed in ejection height by a lens to be tested placed in the ferrule after being ejected.

The thimble holes 4 on the base 3 are arranged spirally, so that the aperture of the thimble holes can be maximized, and the thickness and the jacking force of the thimble are ensured.

Claims

1. The utility model provides a test fixture of precision mould pressing lens which characterized in that: comprises a ferrule (1) part with fixed thickness, fixed clearance and gradually increased inner diameter, a base (3) part for supporting the ferrule (1) part and an ejector pin (2) part; at least one thimble hole (4) is arranged on the part of the base (3) corresponding to each layer of ferrule (1); the thimble (2) is matched with the thimble hole (4).

2. The test tool for the precision press-molding lens according to claim 1, wherein: also comprises a fixed ferrule; the ferrule (1) is partially arranged in the fixed ferrule, and the gap between the ferrule (1) and the fixed ferrule is the same as the gap between each layer of ferrules (1); the base (3) is partially fixed on the lower part of the fixed ferrule.

3. The test tool for the precision press-molding lens according to claim 1 or 2, wherein: the thimble (2) is a flat thimble with scales.

4. The test tool for the precision press-molding lens according to claim 1 or 2, wherein: the base (3) is provided with two thimble holes (4) corresponding to each layer of ferrule (1), and the thimble holes (4) of each layer of ferrule (1) are arranged spirally on the base (3).

5. The test tool for the precision press-molded lens according to claim 4, wherein: the thimble (2) part is composed of two flat thimble with scales with the same size.

6. The test tool for the precision press-molding lens according to claim 1 or 2, wherein: the shape of the lower part of the base (3) is consistent with the shape of the mounting position of the test equipment to be mounted.

7. The test tool for the precision press-molded lens according to claim 2, wherein: the base (3) is in a step cylinder shape with an axial through hole, and the upper part of the base (3) is fixedly connected with the lower part of the fixed ferrule.