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Location fixture for prism roof ridge as well as location and manufacturing methods thereof

A technology for positioning tooling and prism houses, which is applied to metal processing equipment, manufacturing tools, grinding machines, etc., can solve the problem that the angle accuracy is difficult to reach within 30″, achieve simple and fast positioning, ensure grinding stability and precision, and avoid loosening or drop effect

Active Publication Date: 2018-07-13
马鞍山市江南光学有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The invention provides a prism roof ridge positioning tool, and its purpose is to solve the problem that the angular accuracy between the ridge ridge and its opposite rectangular side is difficult to reach within 30" after processing the ridge surface of the existing pentaprism

Method used

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  • Location fixture for prism roof ridge as well as location and manufacturing methods thereof
  • Location fixture for prism roof ridge as well as location and manufacturing methods thereof
  • Location fixture for prism roof ridge as well as location and manufacturing methods thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] Such as image 3 As shown, a kind of prism roof edge positioning frock of the present embodiment is specially designed for the processing and positioning of the roof edge of the pentaprism. figure 1 The semi-finished pentaprism shown is ground into figure 2 The cost shown, has two hip faces that meet to form the hip rib. The pentaprism requires that the angle accuracy between the roof ridge and its opposite side is within 30", and the positioning tool is used for positioning to ensure the processing accuracy. The structure of the positioning tool will be described below.

[0056] The positioning tool of this embodiment includes a base plate 1 , a positioning prism 2 , a roof surface positioning block 3 and a supporting block 4 . Wherein, the positioning prism 2 and the supporting block 4 are fixed on the base plate 1, and the roof surface positioning block 3 is fixed on the supporting block 4; the positioning prism 2 is an isosceles right-angled prism, and the roof s...

Embodiment 2

[0066] Present embodiment provides a kind of positioning method of prism roof rib, adopts the positioning tool among the embodiment 1 to carry out positioning before pentaprism processing roof rib, and its operation steps are as follows:

[0067] 1. Preparation of verification documents

[0068] The accuracy of the calibration piece directly determines the assembly accuracy of the positioning tool. The key is to ensure that the vertical accuracy between the detection surface of the reference square prism 6 and the slope of the reference triangular prism 5 is within 5″. For this reason, a second-level optical goniometer is used for calibration The inspection piece is assembled.

[0069] During assembly, a right-angled surface of the reference triangular prism 5 is bonded to the workbench of the goniometer; then, an edge of the reference square prism 6 is in contact with the workbench, and the reference square prism 6 is moved closer to the inclined plane of the reference triang...

Embodiment 3

[0080] This embodiment provides a method for processing the prism roof rib, which is used to figure 1 The semi-finished pentaprism shown is processed into figure 2 As shown in the finished pentaprism, two ridge surfaces are ground and processed, and the ridge is formed at the junction, and the angular accuracy between the ridge and its opposite rectangular side is difficult to reach within 30″. The specific operation steps of this method are:

[0081] 1. Pentaprism blank preparation

[0082] Take a pentaprism blank, satisfying that the parallelism of the two pentagonal faces is within 5", the vertical accuracy between the pentagonal face and the side is within 5", the smoothness of each surface is 80-50, and the aperture is within 1 / 10λ.

[0083] 2. Pentaprism positioning

[0084] The method of Example 2 is used to position the blank of the pentaprism to be processed, and the pentaprism to be processed together with the support body 8 is heated in an oven at a temperature o...

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Abstract

The invention discloses a location fixture for a prism roof ridge as well as location and manufacturing methods thereof, and belongs to the technical field of optical prisms. The location fixture comprises a base plate, location triangular prisms and a roof ridge surface location block, wherein two location triangular prisms are arranged, oppositely arranged on the base plate, and form a V-shapedlocation groove; and the roof ridge surface location block is arranged above the location triangular prisms, and provided with a roof ridge location surface, and the roof ridge location surface is vertical to the end surfaces of the location triangular prisms and vertical to the upper surface of the base plate. The machining method for the prism roof ridge comprises the following steps: preparinga pentaprism blank at first, then locating a pentaprism through the location fixture, and then grinding two roof ridge surfaces separately to form the roof ridge. The location fixture disclosed by theinvention is especially designed for location during the pentaprism grinding for the roof ridge surfaces, capable of enabling the angle accuracy between the roof ridge formed by the two roof ridge surfaces and the rectangular side surface opposite to the roof ridge to be not easily reach a range of less than 30 seconds, and simple and rapid in location.

Description

technical field [0001] The invention belongs to the technical field of optical prism processing, and more specifically relates to a positioning tool for prism roof ribs and a positioning and processing method thereof. Background technique [0002] A prism is a prism composed of optical materials. The refracting and reflecting surfaces of all prisms are collectively called the working surface, the intersection line of the two working surfaces is called the prism, and the section perpendicular to the prism is called the main section. Prisms play many different roles in optics. The combination of prisms can be used as beam splitters, polarizers, etc., but in most applications, only the dispersion function of prisms is used, or the direction of the image, the beam A function that changes the direction of propagation. The dispersion function makes the prism act as a dispersion element, such as the prism in the spectrometer, spectrograph, and monochromator, it plays the role of d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B13/00B24B13/005B24B1/00
CPCB24B1/00B24B13/00B24B13/005
Inventor 金正彬
Owner 马鞍山市江南光学有限公司
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