Auxiliary vertical dial indicator and method for judging whether the dial indicator is perpendicular to the measured surface

Abstract

The present invention discloses an auxiliary vertical dial indicator, comprising a dial indicator body, a first light-emitting group and a second light-emitting group. The first light-emitting group comprises two first linear light sources, and the second light-emitting group comprises two second linear light sources. A first plane formed by the light emitted by the two first linear light sources forms an angle with a second plane formed by the light emitted by the two second linear light sources, and a plane formed by the intersection of the light of the first linear light sources, the intersection of the light of the second linear light sources and the detection point of the dial indicator body is perpendicular to the axis of the dial indicator body. The present invention also discloses a method for achieving perpendicularity between the dial indicator and the measured surface. The above-mentioned auxiliary vertical dial indicator and the method for achieving perpendicularity between the dial indicator and the measured surface can accurately and conveniently determine whether the dial indicator is perpendicular to the measured surface, and are applicable to situations where the measured surface is a vertical surface or a plane at any angle.

Description

Technical Field

[0001] The present invention relates to the field of measurement technology, in particular to an auxiliary vertical dial indicator and a method for achieving verticality between the dial indicator and a measured surface. Background Art

[0002] A dial indicator is a universal length measuring tool that utilizes a precision rack and pinion mechanism. It typically consists of a probe, a measuring rod, a shock-absorbing spring, a rack, a pinion, a hairspring, a circular dial, and a pointer. The dial indicator operates by amplifying the minute linear movement of the measuring rod caused by the measured dimension through a gear transmission, converting it into rotation of the pointer on the dial, thereby reading the measured dimension. During measurement, the measuring rod must be perpendicular to the measured surface, meaning that its axis aligns with the direction of the measured dimension. Otherwise, the measuring rod will become clumsy and the measurement results will be inaccurate.

[0003] In actual measurement, testers often rely on experience to determine whether a dial indicator is vertical. This judgment is highly subjective and can lead to inaccurate results. Existing improved dial indicators use a bubble meter at the top to determine whether the dial indicator is perpendicular to the measured surface by checking whether the bubble is centered. However, this improved dial indicator is only suitable for horizontal surfaces. For vertical surfaces or even planes at arbitrary angles, this dial indicator cannot determine whether the surface is perpendicular to the measured surface. Summary of the Invention

[0004] Based on the above problems, it is necessary to provide an auxiliary vertical dial indicator and a method to achieve perpendicularity between the dial indicator and the measured surface, in order to solve the problem that the existing dial indicator cannot determine whether it is perpendicular to the measured surface when the measured surface is a vertical surface or even a plane of any angle.

[0005] An auxiliary vertical dial indicator, comprising:

[0006] Dial indicator body;

[0007] A first light-emitting group includes two first line light sources, which are installed on the dial indicator body at intervals along the axial direction of the dial indicator body, and light rays emitted by the two first line light sources can intersect; and

[0008] A second light-emitting group includes two second line light sources, which are installed on the dial indicator body at intervals along the axial direction of the dial indicator body, and the light emitted by the two second line light sources can intersect;

[0009] Among them, the first plane formed by the two first line light sources forms an angle with the second plane formed by the two second line light sources, and the plane formed by the intersection of the first line light sources, the intersection of the second line light sources and the detection point of the dial indicator body is perpendicular to the axis of the dial indicator body.

[0010] In one embodiment, a first plane formed by the two first line light sources is perpendicular to a second plane formed by the two second line light sources.

[0011] In one embodiment, the distance between the two first line light sources is the same as the distance between the two second line light sources.

[0012] In one embodiment, the first line light source and the second line light source are located in the same circumferential direction of the dial indicator body.

[0013] In one embodiment, the dial indicator body includes a dial, an upper column, a lower column and a measuring rod. The upper column and the lower column are installed on the dial, and the upper column and the lower column are symmetrically arranged about the dial. The measuring rod is installed on the lower column.

[0014] In one embodiment, the two first line light sources are respectively mounted on the upper column and the lower column; and / or

[0015] The two second line light sources are respectively installed on the upper column and the lower column.

[0016] In one embodiment, the first line light source and the second line light source are both laser lamps.

[0017] A method for achieving perpendicularity between a dial indicator and a measured surface comprises the following steps:

[0018] Providing an auxiliary vertical dial indicator as described in any one of the above;

[0019] Place the detection end of the dial indicator body in contact with the surface to be measured, so that the light rays emitted by the two first light sources intersect at one point, and the light rays emitted by the two second light sources intersect at one point;

[0020] Adjust the angle of the dial indicator body relative to the measured surface so that the intersection of the first line light source and the intersection of the second line light source are located on the measured surface, and then the dial indicator body is perpendicular to the measured surface.

[0021] The aforementioned auxiliary vertical dial indicator and method for determining whether the dial indicator is perpendicular to the measured surface involve placing the detection end of the dial indicator body in contact with the measured surface. The light emitted by the first light source and the light emitted by the second light source intersect at a point. The angle of the dial indicator body relative to the measured surface is adjusted so that the intersection of the first light source and the intersection of the second light source are both located on the measured surface. The dial indicator is then considered perpendicular to the measured surface. The aforementioned auxiliary vertical dial indicator and method for determining whether the dial indicator is perpendicular to the measured surface can accurately and conveniently determine whether the dial indicator is perpendicular to the measured surface, and are applicable to situations where the measured surface is a vertical surface or a plane at any angle. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific embodiments of the present invention, the following briefly introduces the drawings required for use in the specific embodiments. In all the drawings, each element or part is not necessarily drawn according to the actual scale.

[0023] Figure 1 A schematic structural diagram of an auxiliary vertical dial indicator in one embodiment;

[0024] Figure 2 for Figure 1 The schematic diagram of the auxiliary vertical dial indicator shown is perpendicular to the measured surface;

[0025] Figure 3 for Figure 1 The front view of the auxiliary vertical dial indicator shown;

[0026] Figure 4 for Figure 1 A side view of the auxiliary vertical dial indicator shown;

[0027] Figure 5 for Figure 1 Schematic diagram showing that the auxiliary vertical dial indicator is not perpendicular to the measured surface;

[0028] Figure 6 The present invention is a flow chart of a method for achieving perpendicularity between a dial indicator and a measured surface in one embodiment.

[0029] Reference numerals:

[0030] 1- measured surface, 10- dial indicator body, 12- dial, 14- upper column, 16- lower column, 18- measuring rod, 20- first line light source, 30- second line light source. DETAILED DESCRIPTION

[0031] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0032] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in this specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0034] See also Figure 1 and Figure 2 In one embodiment, the auxiliary vertical dial indicator includes a dial indicator body 10, a first light-emitting group, and a second light-emitting group.

[0035] Please also refer to Figure 3 and Figure 4 The dial indicator body 10 is used to measure length. In one embodiment, the dial indicator body 10 includes a dial 12, an upper column 14, a lower column 16, and a measuring rod 18. Components such as a pointer, a rack, a gear, a spring, and a hairspring are mounted within the dial 12. The upper column 14 and the lower column 16 are both mounted on the side of the dial 12, and are symmetrically arranged with respect to the dial 12. The measuring rod 18 is mounted on the lower column 16 and is used to contact the measured surface 1 to perform measurements.

[0036] The first light-emitting group includes two first line light sources 20, which are mounted on the dial gauge body 10 at intervals along the axial direction of the dial gauge body 10. That is, the line formed by the two first line light sources 20 is parallel to the axis of the dial gauge body 10. Specifically, the two first line light sources 20 are mounted on the upper column 14 and the lower column 16, respectively. The two first line light sources 20 are capable of emitting linear light, and the light rays emitted by the two first line light sources 20 can intersect, forming a first plane.

[0037] The second light-emitting group includes two second line light sources 30, which are mounted on the dial gauge body 10 at intervals along its axial direction. Specifically, the line formed by the two second line light sources 30 is parallel to the axis of the dial gauge body 10. Specifically, the two second line light sources 30 are mounted on the upper column 14 and the lower column 16, respectively. The two second line light sources 30 are capable of emitting linear light, and the light rays emitted by the two second line light sources 30 can intersect, forming a second plane.

[0038] See also Figure 2 , wherein the first plane formed by the light rays of the two first linear light sources 20 forms an angle with the second plane formed by the light rays of the two second linear light sources 30. That is, the first linear light sources 20 and the second linear light sources 30 are staggered in the axial direction of the dial indicator body 10, and the intersection of the first plane and the second plane is the axis of the dial indicator body 10. The plane formed by the intersection of the light rays of the first linear light sources 20, the intersection of the light rays of the second linear light sources 30, and the detection point is perpendicular to the axis of the dial indicator body 10. The detection point is the contact point between the dial indicator body 10 and the detection surface 1.

[0039] The above-mentioned auxiliary vertical dial indicator brings the detection end of the dial indicator body 10 into contact with the measured surface 1, and adjusts the angle of the dial indicator body 10 so that the intersection of the light rays of the first line light source 20 and the intersection of the light rays of the second line light source 30 are both located on the measured surface 1. At this time, the plane formed by the intersection of the light rays of the first line light source 20, the intersection of the light rays of the second line light source 30 and the detection point coincides with the measured surface 1. Since the plane formed by the intersection of the light rays of the first line light source 20, the intersection of the light rays of the second line light source 30 and the detection point is perpendicular to the axis of the dial indicator body 10, it can be considered that the dial indicator body 10 is perpendicular to the measured surface 1.

[0040] In one embodiment, a first plane formed by the two first line light sources 20 is perpendicular to a second plane formed by the two second line light sources 30. For example, in a rectangular coordinate system, if the measured surface 1 is an XY plane, then the first plane is the XZ plane, and the second plane is the YZ plane. It will be appreciated that in other embodiments, the angle between the first and second planes can be set as needed.

[0041] In one embodiment, the spacing between the two first line light sources 20 and the spacing between the two second line light sources 30 are the same, and the first line light sources 20 and the second line light sources 30 are located in the same circumferential direction of the dial indicator body 10. In other words, the upper first line light source 20 and the second line light source 30 are located in the same circumferential direction of the upper column 14, and the lower first line light source 20 and the second line light source 30 are located in the same circumferential direction of the lower column 16, so that the intersection point of the light rays of the first line light source 20 and the intersection point of the light rays of the second line light source 30 are at the same height.

[0042] In one embodiment, both the first line light source 20 and the second line light source 30 are laser lamps. The red light emitted by the laser lamps makes it easier to clearly see the intersection of the light rays. It is understood that in other embodiments, the first line light source 20 and the second line light source 30 can be other line light sources, as long as they can emit visible linear light. Furthermore, the first line light source 20 and the second line light source 30 can be of the same or different types; the two first line light sources 20 can be of the same or different types, and the two second line light sources 30 can be of the same or different types.

[0043] See also Figure 6 The present invention also provides a method for achieving perpendicularity between a dial indicator and a measured surface. To achieve this method, the above-mentioned auxiliary vertical dial indicator is used. Specifically, the method includes the following steps:

[0044] Step S110: providing an auxiliary vertical dial indicator.

[0045] Specifically, an auxiliary vertical dial indicator is obtained. The auxiliary vertical dial indicator can be obtained by installing a first light-emitting group and a second light-emitting group on the basis of an existing dial indicator.

[0046] Step S120: The detection end of the dial indicator body 10 is brought into contact with the measured surface 1, and the light emitted by the two first line light sources 20 intersects at one point, and the light emitted by the two second line light sources 30 intersects at one point.

[0047] Specifically, the dial indicator body 10 is held and the measuring rod 18 of the dial indicator body 10 is brought into contact with the measured surface 1, thereby bringing the detection end of the dial indicator body 10 into contact with the measured surface 1. Then, the light rays emitted by the two first line light sources 20 intersect at a point, and the light rays emitted by the two second line light sources 30 intersect at a point.

[0048] Step S130 : adjusting the angle of the dial indicator body 10 relative to the measured surface 1 so that the intersection of the light of the first line light source 20 and the light of the second line light source 30 is located on the measured surface 1 , and the dial indicator body 10 is perpendicular to the measured surface 1 .

[0049] Specifically, adjust the angle of the dial indicator body 10 to keep it substantially perpendicular to the measured surface 1 , and then observe whether the intersection of the light from the first line light source 20 and the light from the second line light source 30 are both located on the measured surface 1 .

[0050] like Figure 2As shown, if the intersection point of the first line light source 20 and the intersection point of the second line light source 30 are both located on the measured surface 1, then the plane formed by the intersection point of the first line light source 20, the intersection point of the second line light source 30, and the detection point where the measuring rod 18 contacts the measured surface 1 coincides with the measured surface 1. Since the plane formed by the intersection point of the first line light source 20, the intersection point of the second line light source 30, and the detection point is perpendicular to the axis of the dial indicator body 10, it can be considered that the dial indicator body 10 is perpendicular to the measured surface 1.

[0051] like Figure 5 As shown, if at least one of the intersection points of the first line light source 20 and the second line light source 30 is not located on the measured surface 1, then the plane formed by the intersection points of the first line light source 20, the intersection points of the second line light source 30, and the detection point where the measuring rod 18 contacts the measured surface 1 forms an angle with the measured surface 1, and it can be considered that the dial indicator body 10 is not perpendicular to the measured surface 1. In this case, it is necessary to adjust the angle of the dial indicator body 10 relative to the measured surface 1 until the intersection point of the first line light source 20 and the second line light source 30 is located on the measured surface 1.

[0052] The above auxiliary vertical dial indicator and the method for determining whether the dial indicator is perpendicular to the measured surface 1 can accurately and conveniently determine whether the dial indicator is perpendicular to the measured surface 1, and is applicable to the case where the measured surface 1 is a vertical surface or a plane at any angle.

[0053] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and description of the present invention.

Claims

1. An auxiliary vertical dial indicator, characterized in that: include: Dial indicator body; A first light-emitting group includes two first line light sources, which are installed on the dial indicator body at intervals along the axial direction of the dial indicator body, and light rays emitted by the two first line light sources can intersect; and A second light-emitting group includes two second line light sources, which are installed on the dial indicator body at intervals along the axial direction of the dial indicator body, and the light emitted by the two second line light sources can intersect; Among them, the first plane formed by the two first line light sources forms an angle with the second plane formed by the two second line light sources, and the plane formed by the intersection of the first line light sources, the intersection of the second line light sources and the detection point of the dial indicator body is perpendicular to the axis of the dial indicator body.

2. The auxiliary vertical dial indicator according to claim 1, characterized in that: A first plane formed by the two first line light sources is perpendicular to a second plane formed by the two second line light sources.

3. The auxiliary vertical dial indicator according to claim 1, characterized in that: The distance between the two first line light sources is the same as the distance between the two second line light sources.

4. The auxiliary vertical dial indicator according to claim 3, characterized in that: The first line light source and the second line light source are located in the same circumferential direction of the dial indicator body.

5. The auxiliary vertical dial indicator according to claim 1, characterized in that: The dial indicator body includes a dial, an upper column, a lower column and a measuring rod. The upper column and the lower column are installed on the dial, and the upper column and the lower column are symmetrically arranged about the dial. The measuring rod is installed on the lower column.

6. The auxiliary vertical dial indicator according to claim 5, characterized in that: The two first line light sources are respectively installed on the upper column and the lower column; and / or The two second line light sources are respectively installed on the upper column and the lower column.

7. The auxiliary vertical dial indicator according to claim 1, characterized in that: The first line light source and the second line light source are both laser lamps.

8. A method for achieving perpendicularity between a dial indicator and a measured surface, characterized in that: The following steps are involved: Providing an auxiliary vertical dial indicator according to any one of claims 1 to 7; Place the detection end of the dial indicator body in contact with the surface to be measured, so that the light rays emitted by the two first light sources intersect at one point, and the light rays emitted by the two second light sources intersect at one point; Adjust the angle of the dial indicator body relative to the measured surface so that the intersection of the first line light source and the intersection of the second line light source are located on the measured surface, and then the dial indicator body is perpendicular to the measured surface.

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