CN113028929A

CN113028929A - A magnifying glass subassembly for high vernier

Info

Publication number: CN113028929A
Application number: CN202110174438.1A
Authority: CN
Inventors: 梁月强; 胡永辉
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-10-18
Filing date: 2021-02-07
Publication date: 2021-06-25

Abstract

The height vernier is widely applied to height measurement, marking and the like in machining. However, in the case of measurement without a mechanical structure such as a scribe line, since the measuring jaw cannot be caught on the scribe line, a large measurement error occurs when the alignment of the measuring jaw and the scribe line is judged by naked eyes. The invention discloses a magnifying glass component for a height vernier to replace a measuring jaw, so that the measurement without a mechanical structure such as a marking line is more accurate and convenient.

Description

A magnifying glass subassembly for high vernier

Technical Field

Measuring tool

Background

The height vernier caliper is widely applied to height measurement, scribing and the like in machining, and generally can reach 0.05mm or 0.02 mm according to higher measurement accuracy. However, in the case of measurement without a mechanical structure such as a scribe line, since the measuring jaw cannot be caught on the scribe line, a large measurement error occurs when the alignment of the measuring jaw and the scribe line is judged by naked eyes. The magnifying glass can magnify the image of the observed target, and the spatial resolution of naked eyes is improved. Relative to the measuring jaw, marks such as scale marks are more convenient for observing whether the measuring jaw is aligned with the measured target or not.

Disclosure of Invention

In order to overcome the above-mentioned shortcomings of height vernier calipers, a magnifier assembly for a height vernier caliper has been invented. The magnifier component is rigidly connected with the vernier and moves along with the vernier; the magnifying lens assembly comprises a magnifying lens, a reference mark and a vernier connecting piece; the magnifier assembly is fixed on the vernier through a vernier connecting piece. The magnifier can be a single convex lens, a compound lens or an electronic magnifier. The compound lens can be a cemented lens or a lens group. The reference mark may be a mark line or an indicator mark such as an arrow. The reference mark is positioned in one focal length of the field range of the magnifier. When the vernier is in zero position, the reference mark is aligned with the reference horizontal plane; the reference level is typically the main scale base bottom surface. During measurement, the reference mark is pressed close to the measured target, the vernier is moved to enable the reference mark to be aligned with the measured target which is also located in the field range of the magnifying lens, and the reading of the vernier is the measurement height of the measured target.

Drawings

FIG. 1 is a schematic view of a height vernier with the magnifier assembly of example 1

FIG. 2 is a schematic view of an enlarged mirror assembly in example 1

FIG. 3 is a schematic view of a semicircular fiducial mark plate in example 1

FIG. 4 is a schematic view of an enlarged mirror assembly in example 2

FIG. 5 is a schematic view of a glass reference mark plate in example 2

FIG. 6 is a schematic view of an enlarged mirror assembly in example 3

FIG. 7 is a schematic view of a reference mark measuring jaw in example 3

Example 1

Fig. 1 is a schematic view of a height vernier with a magnifier assembly of this embodiment, which is composed of a main scale 101, a vernier 102 and a magnifier assembly 103. The cursor 102 is a digital display cursor. The magnifier assembly of this embodiment is rigidly connected to the cursor and moves with the cursor. The main body of the magnifying lens assembly (see fig. 2) is of a cylindrical structure, one end of the cylinder is a circular magnifying lens 201, and the other end of the cylinder is a semicircular reference mark plate 202. The main optical axis of the magnifier is perpendicular to the vernier movement direction. By rotating the magnifying lens end, the distance between the magnifying lens and the reference mark plate can be adjusted. The magnifier assembly body is attached to the cursor by a cursor connector 203. The magnifier is a single-chip convex lens, and the magnification is 10 times. The reference mark plate (see figure 3) is a semicircle made of stainless steel and is positioned in one-time focal distance of the front field range of the magnifier, the semicircle plane of the reference mark plate is vertical to the main optical axis of the magnifier, and the diameter edge is parallel to the motion direction of the vernier through the main optical axis. The reference mark arrow 301 points horizontally to the center of the circle. The reference mark plate is semicircular, so that the detected object can be observed through the other half of the hollow part from the magnifier. The digital display vernier can return the display to zero at any position, so that any horizontal plane in the measuring range can be set as a reference horizontal plane. The reference level is usually set to the bottom surface of the main scale base, i.e. when the cursor is in a zero position, the tip of the arrow of the reference mark is aligned with the bottom surface of the main scale base. During measurement, the reference mark plate is pressed close to a measured target, the vernier is moved, the magnified reference mark arrow and the image of the measured target are observed through the magnifier, the tip of the reference mark arrow is horizontally aligned with the measured target which is also located in the field range of the magnifier, and the reading of the vernier is the measurement height of the measured target.

Example 2

A magnifier assembly for a height vernier (see figure 4) is of a cylindrical structure, one end of the cylinder is a circular magnifier 401, and the other end of the cylinder is a circular reference mark plate 402 (see figure 5). The magnifier is a compound lens, and the magnification of the magnifier is 20 times. The composite lens is a lens group consisting of a biconvex lens made of a single material and a single convex lens made of a single material. A button battery is arranged in the wall of the lens group cylinder, and an LED small lamp is arranged on the lens group cylinder towards the direction of the reference mark plate. The reference mark plate is round and made of transparent glass, is positioned in a focal distance which is one time of the front field range of the magnifier, and the round plane of the reference mark plate is vertical to the main optical axis of the magnifier. The marking plate is marked with a horizontal reference mark line 501 and a vertical scale mark line 502. The cross-reference mark line is perpendicular to the cursor movement direction. The width of the horizontal line of the reference mark and the width of the scale mark are both 0.01mm, and each cell of the scale mark is 0.05 mm. The reference mark plate is made of transparent glass so that the object to be measured can be observed through the reference mark plate from the magnifier. When the vernier is in zero position, the transverse line of the reference mark is horizontally aligned with the bottom surface of the main ruler base. During measurement, the reference mark plate is pressed close to a measured target, the vernier is moved, the magnified reference mark transverse line and the image of the measured target are observed through the magnifier, the reference mark transverse line is horizontally aligned with the measured target which is also located in the field range of the magnifier, and the reading of the vernier is the measurement height of the measured target.

Example 3

A magnifying glass assembly for a height vernier (see figure 6) consists of a magnifying glass 601, reference mark measuring jaws 602 and a vernier attachment 603. The magnifying lens is a compound lens, and the magnification is 10 times. The composite lens is a lens group consisting of a biconvex cemented lens and a monovex cemented lens. The reference mark measuring jaw (see fig. 7) has a reference mark line 701 with a line width of 0.01 mm. The main optical axis of the magnifier is perpendicular to the vernier movement direction. The reference mark line is perpendicular to the cursor movement direction. The end point of the reference mark line close to the edge of the measuring claw is positioned at the central position of the field of view of the magnifier. And when the vernier is in a zero position, the reference mark line is horizontally aligned with the bottom surface of the main scale base. During measurement, the reference mark measuring claw is pressed close to a measured target, the vernier is moved, the magnified reference mark line and the image of the measured target are observed through the magnifier, the reference mark line is horizontally aligned with the measured target which is also located in the field range of the magnifier, and the reading of the vernier is the measurement height of the measured target.

Example 4

A magnifying glass assembly for a height vernier consists of an electronic magnifying glass, a reference mark measuring claw and a vernier connecting piece. The reference mark measuring claw is provided with a reference mark line, and the line width of the reference mark is 0.01 mm. The electronic magnifier comprises a magnifier lens barrel and a magnifier display, and an enlarged image shot through the magnifier lens barrel is displayed on the magnifier display, so that a user does not need to make eyes approach the magnifier to observe alignment of the reference mark and the measured target. The main optical axis of the electronic magnifier is perpendicular to the vernier movement direction. The reference mark line is perpendicular to the cursor movement direction, and the end point of the reference mark line close to the edge of the measuring claw is positioned at the central position of the field of view of the electronic magnifier. And when the vernier is in a zero position, the reference mark line is horizontally aligned with the bottom surface of the main scale base. During measurement, the reference mark measuring claw is close to a measured target, the vernier is moved, the magnified reference mark line and the image of the measured target are observed through the display, the reference mark line is horizontally aligned with the measured target which is also positioned in the field range of the magnifying glass, and the reading of the vernier scale is the measurement height of the measured target.

Example 5

A magnifying glass assembly for a height vernier consists of an electronic magnifying glass, a reference mark measuring claw and a vernier connecting piece. The reference mark measuring claw is provided with a reference mark line, and the line width of the reference mark is 0.01 mm. The electronic magnifier comprises a magnifier lens barrel and a magnifier display, and an enlarged image shot through the magnifier lens barrel is displayed on the magnifier display, so that a user does not need to make eyes approach the magnifier to observe alignment of the reference mark and the measured target. The main optical axis of the electronic magnifier is perpendicular to the vernier movement direction. The reference mark line is perpendicular to the cursor movement direction, and the end point of the reference mark line close to the edge of the measuring claw is positioned at the central position of the field of view of the electronic magnifier. The magnifier display includes a processor. This embodiment differs from embodiment 4 in that when the cursor is a digital display cursor, the magnifier display communicates with the cursor sensor through its processor to obtain the cursor measurement in real time and display it on the magnifier display. The magnifier display and the vernier capacitive grating sensor can be in communication through a wired connection (such as usb, a serial port and the like) or a wireless connection (such as wifi, 5G and the like). Thus, the liquid crystal display for displaying the measured value on the cursor is integrated on the magnifier display, and the use is more convenient. And when the vernier is in a zero position, the reference mark line is horizontally aligned with the bottom surface of the main scale base. During measurement, the reference mark measuring claw is pressed close to a measured target, the vernier is moved, the magnified reference mark line and the image of the measured target are observed through the display, the reference mark line is horizontally aligned with the measured target which is also positioned in the field range of the magnifying lens, and reading of the upstream scale of the magnifying lens display is the measurement height of the measured target.

Claims

1. A magnifier assembly used for height vernier scale, characterized by that this magnifier assembly is connected with vernier rigidly, move with the vernier; the magnifying lens assembly comprises a magnifying lens, a reference mark and a vernier connecting piece; the reference mark is positioned in the field of view of the magnifier, and is aligned with a measured target which is also positioned in the field of view of the magnifier during measurement; the magnifier assembly is fixed on the vernier through a vernier connecting piece.

2. A magnifier assembly according to claim 1, wherein the magnifier is a single convex lens.

3. A magnifier assembly according to claim 1, wherein the magnifier is a compound lens.

4. A magnifier assembly as claimed in claim 1, wherein the magnifier is an electronic magnifier.

5. A magnifying lens assembly for a height vernier according to claim 1 wherein the reference mark is a marking line.

6. A magnifying glass assembly for a height vernier according to claim 1 wherein the reference mark is an arrow.

7. A magnifier assembly according to claim 1, wherein the reference marks are located within one focal length of the front field of the magnifier.

8. A magnifier assembly as claimed in claim 1, wherein the reference marks are aligned with a reference horizontal plane when the vernier is in zero position; the reference level is typically the main scale base bottom surface.