CN216815288U - External diameter measuring tool - Google Patents
External diameter measuring tool Download PDFInfo
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- CN216815288U CN216815288U CN202122651834.7U CN202122651834U CN216815288U CN 216815288 U CN216815288 U CN 216815288U CN 202122651834 U CN202122651834 U CN 202122651834U CN 216815288 U CN216815288 U CN 216815288U
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- outer diameter
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- 238000005259 measurement Methods 0.000 claims description 17
- 238000000034 method Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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Abstract
The utility model provides an outer diameter measuring tool, which belongs to the technical field of measuring tools and comprises a ruler frame, wherein a first supporting arm and a second supporting arm are respectively arranged at two ends of the ruler frame, and the distance between the first supporting arm and the second supporting arm is adjustable. The first supporting arm is provided with a movable measuring anvil, and the second supporting arm is provided with a measuring device; and moving the measuring anvil to change the relative distance between the end surface of the measuring anvil and a measuring device, wherein the measuring device is used for measuring the distance between the end surface of the measuring anvil and the measuring device. The tool is simple in structure and convenient to measure, and the outer diameter of a workpiece can be accurately measured.
Description
Technical Field
The utility model relates to the technical field of measuring tools, in particular to an outer diameter measuring tool.
Background
In the process of processing the cylinder block of the air compressor, the size of a cylinder hole spigot of the cylinder block is an important size of the cylinder block, and if the size of the cylinder hole spigot does not meet the technological requirements, the performance of the air compressor is affected. The processing technology of the cylinder hole spigot of the cylinder block is complex, and the measurement and inspection requirements are particularly strict. At present, a micrometer screw is commonly used for measuring the outer diameter of a cylinder hole spigot of a cylinder body, and in the measuring process, a detector is required to enable the micrometer screw to be parallel to a radial plane of the cylinder by the measuring mode. Because the surface of the spigot of the cylinder body to be measured is a curved surface, and the micrometer screw and the measuring anvil of the micrometer screw are planes, the micrometer screw and the measuring anvil cannot be completely parallel to the radial plane of the spigot of the cylinder hole in the measuring process, so that the measuring result is easy to have errors. Therefore, there is a need for a tool that can measure the outer diameter of an annular workpiece that overcomes the deficiencies of the prior art.
Chinese patent CN202547555U discloses an adjustable inside and outside diameter gauge, which comprises a gauge stand and a measuring device; the gauge stand comprises a sliding rod, a reference rod and a supporting plate, the reference rod capable of transversely sliding along the supporting plate is installed in a waist-shaped hole of the supporting plate, and a positioning block is arranged at one end of the reference rod; the other end of the supporting plate is fixedly provided with a slide bar connecting block, a slide bar is inserted in the slide bar connecting block, and one end of the slide bar is provided with a lever dial indicator. The meter can accurately measure the inner diameter and the outer diameter of the annular groove with overlarge depth and small annular groove width, and is simple and convenient to operate.
The diameter gauge is complex in structure and high in production cost, and the distance between the reference rod and the sliding rod is adjusted to adapt to different inner and outer diameter measurement, so that the reference rod and the sliding rod are difficult to position when moving, and the inner and outer diameters of the annular groove can be accurately measured by adjusting the distance between the reference rod and the sliding rod for many times when measuring the aperture.
SUMMERY OF THE UTILITY MODEL
To overcome the problems in the related art, an object of the present invention is to provide an outer diameter measuring tool which has a simple structure and is convenient to measure, and which can accurately measure the outer diameter of a workpiece.
An outer diameter measurement tool comprising: the device comprises a ruler frame, a first supporting arm and a second supporting arm are respectively arranged at two ends of the ruler frame, and the distance between the first supporting arm and the second supporting arm is adjustable;
the first support arm is provided with a movable measuring anvil, and the second support arm is provided with a measuring device; and moving the measuring anvil to change the relative distance between the end surface of the measuring anvil and the measuring device, wherein the measuring device is used for measuring the distance between the end surface of the measuring anvil and the measuring device.
In a preferred technical solution of the present invention, the first support arm and the second support arm are both perpendicular to the ruler frame, and the first support arm and the second support arm are located in the same plane and are oppositely disposed.
In a preferred technical scheme of the utility model, a mounting hole is formed in the first support arm, the measuring anvil is mounted in the mounting hole, and one end of the measuring anvil corresponds to the measuring device;
an adjusting screw is arranged on the first supporting arm and is in threaded connection with the measuring anvil; the adjusting screw is turned to enable the measuring anvil to translate along the axis direction of the measuring anvil.
In a preferred technical scheme of the present invention, the mounting hole is a blind hole or a through hole, and an opening of the mounting hole is disposed toward the second support arm.
In a preferred technical scheme of the utility model, the ruler frame is provided with a plurality of auxiliary positioning pieces, and the auxiliary positioning pieces are detachably fixed on the ruler frame.
In a preferred technical solution of the present invention, the auxiliary positioning element includes a base body and an auxiliary plate, the base body is detachably fixed on the ruler frame, the auxiliary plate is fixed on the base body, and the auxiliary plate is perpendicular to the plane of the ruler frame.
In a preferred technical scheme of the utility model, the measuring device is a dial indicator, and a thimble of the dial indicator faces the measuring anvil.
In a preferred technical scheme of the utility model, the dial indicator is an electronic digital display dial indicator which is externally connected with a voice broadcast device.
In a preferred technical scheme of the utility model, the ruler frame comprises an inner pipe and an outer pipe, the inner pipe and the outer pipe are mutually sleeved, and the inner pipe and the outer pipe can move relatively; the inner tube is provided with a convex point, the outer tube is provided with a positioning hole, and the convex point is matched with the positioning hole.
In a preferred technical scheme of the utility model, hollow holes are formed in both the inner pipe and the outer pipe.
The beneficial effects of the utility model are as follows:
the utility model provides an outer diameter measuring tool, wherein a ruler frame of the tool is provided with a first supporting arm and a second supporting arm, the first supporting arm is provided with a measuring anvil, and the second supporting arm is provided with a measuring device. During measurement, the measuring anvil is abutted against the outer wall of the workpiece, the measuring device can measure the outer diameter of the workpiece by cutting across the outer wall of the workpiece, the whole tool has few parts and simple structure, and the measuring steps are simple and convenient. And the distance between the first supporting arm and the second supporting arm can be adjusted, and the distance between the end face of the anvil and the measuring device can also be adjusted. When the difference between the distance between the end face of the measuring anvil and the measuring device and the outer diameter of the measured workpiece is large, the distance between the first supporting arm and the second supporting arm is adjusted to meet the measuring requirement; when the difference between the distance between the end face of the measuring anvil and the measuring device and the outer diameter of the measuring workpiece is small, the measuring requirement is met by moving the measuring anvil. The two distance adjusting modes can be better suitable for measuring the outer diameters of different workpieces, the anvil is convenient to move and accurate in positioning, and the measuring efficiency can be improved.
Drawings
FIG. 1 is a perspective view of an outer diameter measurement tool provided by the present invention;
FIG. 2 is a schematic view of the anvil of the present invention mounted on a first support arm;
FIG. 3 is a schematic view of the structure of the auxiliary positioning member and the ruler frame of the present invention.
Reference numerals:
100. a ruler frame; 110. an inner tube; 111. a first support arm; 112. salient points; 113. hollowing out holes; 120. an outer tube; 121. a second support arm; 122. positioning holes; 200. a measuring device; 210. a thimble; 300. measuring an anvil; 400. an adjusting screw; 500. a voice broadcaster; 600. an auxiliary positioning member; 610. a substrate; 620. an auxiliary plate; 1111. and (7) mounting holes.
Detailed Description
Preferred embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While the preferred embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the utility model to those skilled in the art.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used in this specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
It is to be understood that, although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited by these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present invention. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
As shown in fig. 1 to 3, an outer diameter measuring tool includes: the ruler comprises a ruler frame 100, wherein a first supporting arm 111 and a second supporting arm 121 are respectively arranged at two ends of the ruler frame 100, and the distance between the first supporting arm 111 and the second supporting arm 121 is adjustable;
the first support arm 111 is provided with a movable measuring anvil 300, and the second support arm 121 is provided with a measuring device 200; by moving the anvil 300, the relative distance between the end surface of the anvil 300 and the measuring device 200 can be changed, and the measuring device 200 is used for measuring the distance between the end surface of the anvil 300 and the measuring device 200.
More specifically, the first supporting arm 111 and the second supporting arm 121 are both perpendicular to the tape frame 100, and the first supporting arm 111 and the second supporting arm 121 are located in the same plane and are oppositely arranged. The first support arm 111, the second support arm 121 and the scale frame 100 form an Contraband-shaped structure, and the distance L between the end face of the anvil 300 and the measuring device 200 is the measuring range of the tool. The measurement of different workpiece outer diameters can be met by adjusting the distance L. More specifically, the first support arm 111, the second support arm 121 and the tape frame 100 may be fixed by screws or by welding. The first support arm 111 and the second support arm 121 may have the same or different structures.
In the above-mentioned outer diameter measuring tool, the first supporting arm 111 and the second supporting arm 121 are disposed on the scale frame 100 of the tool, the measuring anvil 300 is disposed on the first supporting arm 111, the measuring device 200 is disposed on the second supporting arm 121, and the measuring device 200 is a dial indicator. The dial indicator is fixed on the second support arm 121 by fastening screws, and the thimble 210 of the dial indicator faces the anvil 300. During measurement, the measuring anvil 300 is abutted against the outer wall of a workpiece, the thimble 210 of the dial indicator slides through the outer surface of the workpiece, the numerical value of the dial indicator is changed from small to large, the maximum value of the numerical value is the outer diameter of the workpiece, the whole tool has few parts, the structure is simple, and the measurement steps are simple and convenient. And the distance between the first support arm 111 and the second support arm 121 can be adjusted, and the distance between the end surface of the anvil 300 and the measuring device 200 can also be adjusted. When the distance between the end face of the anvil 300 and the measuring device 200 is greatly different from the outer diameter of the measured workpiece, the distance between the first support arm 111 and the second support arm 121 is adjusted to meet the measurement requirement; when the distance between the end face of the anvil 300 and the measuring device 200 differs a little from the outer diameter of the measuring workpiece, the measurement requirement is satisfied by moving the anvil 300. The two distance adjusting modes can be better suitable for measuring the outer diameters of different workpieces, the anvil 300 is convenient to move and accurate in positioning, and the measuring efficiency can be improved.
Further, the first support arm 111 is provided with a mounting hole 1111, the anvil 300 is mounted in the mounting hole 1111, and one end of the anvil 300 corresponds to the measuring device 200;
an adjusting screw 400 is arranged on the first support arm 111, and the adjusting screw 400 is in threaded connection with the anvil 300; the adjusting screw 400 is turned to enable the anvil 300 to translate along the axis direction of the anvil.
More specifically, referring to fig. 2, the mounting hole 1111 is a blind hole or a through hole, and an opening of the mounting hole 1111 is disposed toward the second support arm 121. The mounting hole 1111 runs along the first support arm 111 towards the second support arm 121, and when the mounting hole 1111 is a blind hole, the end facing away from the second support arm 121 is sealed. The setting mode of the adjusting screw 400 is as follows: the axis of the adjusting screw 400 is perpendicular to the axis of the anvil 300. When the adjusting screw 400 is turned, the adjusting screw 400 drives the anvil 300 to move axially in the mounting hole 1111 through screw thread fit, so as to change the distance between the end surface of the anvil 300 and the measuring device 200.
Further, a plurality of auxiliary positioning pieces 600 are arranged on the ruler frame 100, and the auxiliary positioning pieces 600 are detachably fixed on the ruler frame 100. The auxiliary positioning member 600 can play a role in auxiliary positioning when the outer diameter is measured. Because the outer surface of the workpiece to be measured is a curved surface, the ruler holder 100 cannot be completely attached to the outer surface of the workpiece in the measuring process, and the ruler holder 100 is difficult to keep parallel to the cross section of the workpiece, which can cause errors in measured outer diameter data of the workpiece. The surface of the auxiliary positioning member 600 is attached to the surface of the workpiece to be measured, so that the ruler frame 100 can be defined in an auxiliary manner, the ruler frame 100 and the cross section of the workpiece can be kept in a parallel state, and the measured data can be more accurate.
Further, referring to fig. 3, the auxiliary positioning member 600 includes a base 610 and an auxiliary plate 620, the base 610 is detachably fixed on the ruler frame 100, the auxiliary plate 620 is fixed on the base 610, and the auxiliary plate 620 is perpendicular to the plane of the ruler frame 100. The base 610 can be fixed on the ruler frame 100 by screws or clips, and the auxiliary plate 620 and the base 610 are arranged in a T shape. The auxiliary plate 620 is attached to the surface of the workpiece during measurement, the surface area of the auxiliary plate 620 is large, and the ruler frame 100 is parallel to the cross section of the workpiece when the auxiliary plate 620 is attached to the surface of the workpiece. And then the outer diameter of the workpiece can be measured.
Further, the dial indicator is an electronic digital display dial indicator, and the electronic digital display dial indicator is externally connected with the voice broadcast device 500. The electronic digital display lever meter displays measured data through the display screen, and the reading is more visual. The voice broadcast device 500 can broadcast the measured data of the outer diameter of the workpiece through voice, so that the time for the detection personnel to watch the display data can be saved, and the measurement efficiency can be improved.
Further, the measuring tape frame 100 comprises an inner tube 110 and an outer tube 120, the inner tube 110 and the outer tube 120 are sleeved with each other, and the inner tube 110 and the outer tube 120 can move relatively; the inner tube 110 is provided with a protruding point 112, the outer tube 120 is provided with a positioning hole 122, and the protruding point 112 is matched with the positioning hole 122. The protruding points 112 and the positioning holes 122 cooperate with each other to position the movement of the inner tube 110 and the outer tube 120. The protruding point 112 should have a certain elasticity, and when the distance between the first supporting arm 111 and the second supporting arm 121 needs to be adjusted, the protruding point 112 is manually pressed to be away from the positioning hole 122, so that the inner tube 110 and the outer tube 120 can move relative to each other. After the positioning, the protruding points 112 are buckled into the positioning holes 122, so that the inner tube 110 and the outer tube 120 are fixed to each other.
Further, the inner tube 110 and the outer tube 120 are both provided with hollow holes 113. On one hand, the hollow holes 113 can save the materials of the inner tube 110 and the outer tube 120, and reduce the production cost. On the other hand, the detection personnel can hang the tool on a storage rack in a workshop through the hollow hole 113, so that the tool is convenient to store.
Variations and modifications to the above-described embodiments may occur to those skilled in the art based upon the disclosure and teachings of the above specification. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should fall within the protection scope of the claims of the present invention. In addition, although specific terms are used in the specification, the terms are used for convenience of description and do not limit the utility model in any way.
Claims (10)
1. An outer diameter measuring tool, comprising: the ruler comprises a ruler frame (100), wherein a first supporting arm (111) and a second supporting arm (121) are respectively arranged at two ends of the ruler frame (100), and the distance between the first supporting arm (111) and the second supporting arm (121) can be adjusted;
a movable measuring anvil (300) is arranged on the first supporting arm (111), and a measuring device (200) is arranged on the second supporting arm (121); moving the anvil (300) to change the relative distance between the end face of the anvil (300) and the measuring device (200), the measuring device (200) being used to measure the distance between the end face of the anvil (300) and the measuring device (200).
2. The outer diameter measuring tool of claim 1, wherein:
the first supporting arm (111) and the second supporting arm (121) are both perpendicular to the ruler frame (100), and the first supporting arm (111) and the second supporting arm (121) are located in the same plane and are arranged oppositely.
3. The outer diameter measuring tool of claim 2, wherein:
the first support arm (111) is provided with a mounting hole (1111), the measuring anvil (300) is mounted in the mounting hole (1111), and one end of the measuring anvil (300) corresponds to the measuring device (200);
an adjusting screw (400) is arranged on the first supporting arm (111), and the adjusting screw (400) is in threaded connection with the measuring anvil (300); the adjusting screw (400) is turned to enable the anvil (300) to translate along the axis direction of the anvil.
4. The outer diameter measurement tool of claim 3, wherein:
the mounting hole (1111) is a blind hole or a through hole, and an opening of the mounting hole (1111) is disposed toward the second support arm (121).
5. The outer diameter measuring tool of claim 1, wherein:
the ruler frame (100) is provided with a plurality of auxiliary positioning pieces (600), and the auxiliary positioning pieces (600) can be detachably fixed on the ruler frame (100).
6. The outer diameter measurement tool of claim 5, wherein:
the auxiliary positioning part (600) comprises a base body (610) and an auxiliary plate (620), wherein the base body (610) is detachably fixed on the ruler frame (100), the auxiliary plate (620) is fixed on the base body (610), and the auxiliary plate (620) is perpendicular to the plane of the ruler frame (100).
7. The outer diameter measuring tool of claim 1, wherein:
the measuring device (200) is a dial indicator, and a thimble of the dial indicator faces the measuring anvil (300).
8. The outer diameter measurement tool of claim 7, wherein:
the dial indicator is an electronic digital display dial indicator which is externally connected with a voice broadcast device (500).
9. The outer diameter measurement tool according to any one of claims 1 to 8, wherein:
the ruler frame (100) comprises an inner tube (110) and an outer tube (120), the inner tube (110) and the outer tube (120) are sleeved with each other, and the inner tube (110) and the outer tube (120) can move relatively; the inner tube (110) is provided with a convex point (112), the outer tube (120) is provided with a positioning hole (122), and the convex point (112) is matched with the positioning hole (122).
10. The outer diameter measurement tool of claim 9, wherein:
hollow holes (113) are formed in the inner pipe (110) and the outer pipe (120).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122651834.7U CN216815288U (en) | 2021-11-01 | 2021-11-01 | External diameter measuring tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122651834.7U CN216815288U (en) | 2021-11-01 | 2021-11-01 | External diameter measuring tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216815288U true CN216815288U (en) | 2022-06-24 |
Family
ID=82048725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122651834.7U Active CN216815288U (en) | 2021-11-01 | 2021-11-01 | External diameter measuring tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216815288U (en) |
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2021
- 2021-11-01 CN CN202122651834.7U patent/CN216815288U/en active Active
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