CN112129206B - Countersunk head part head taper measuring device - Google Patents
Countersunk head part head taper measuring device Download PDFInfo
- Publication number
- CN112129206B CN112129206B CN202010894840.2A CN202010894840A CN112129206B CN 112129206 B CN112129206 B CN 112129206B CN 202010894840 A CN202010894840 A CN 202010894840A CN 112129206 B CN112129206 B CN 112129206B
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- measuring
- hinge shaft
- countersunk head
- protractor
- measuring plates
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- 238000000034 method Methods 0.000 claims description 7
- 238000005259 measurement Methods 0.000 description 21
- 230000000694 effects Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/24—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes
- G01B5/241—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes for measuring conicity
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention relates to a measuring device for the head taper of a countersunk head part, which comprises two protractors and two measuring plates, wherein the two measuring plates are arranged in a V shape, one ends of the two measuring plates are hinged and connected through a hinge shaft, and the surfaces of the measuring plates are parallel to the central axis of the hinge shaft; one end of each of the two measuring plates, which is hinged with each other, is provided with a notch, the notches of the two measuring plates are matched to form a through channel, the rod part of the countersunk head part penetrates through the through channel along the direction vertical to the central axis of the hinge shaft, and the through channel is positioned at one end of the hinge shaft; the two measuring plates are respectively provided with a binding surface used for binding with the conical surface of the head part of the countersunk head part; the protractor is arranged on the hinge shaft or one of the measuring plates and is perpendicular to the two measuring plates, the protractor can rotate relative to at least one of the two measuring plates, and one end, back to the hinge shaft, of the two measuring plates is used for being matched with the protractor to read the taper of the head of the countersunk head part.
Description
Technical Field
The invention relates to a device for measuring head taper of countersunk head parts.
Background
Various countersunk head parts (countersunk head screws, countersunk head bolts, countersunk head rivets and the like) are mostly structured as shown in fig. 1, and comprise a rod part 101 and a head part 102 which are coaxially arranged, wherein the head part 102 is a cone, and the periphery of the head part is provided with a conical surface 103. After installation, the head 102 of the countersunk head part sinks below the surface of the substrate, and the surface remains flat. Where the head 102 needs to mate with a counter-sunk hole in the surface of the substrate, the taper α of the head 102 may affect the performance after assembly.
In an actual machining process, since the taper of the head 102 cannot be directly measured, the taper of the head is usually obtained by measuring in a projection manner, projecting the whole countersunk head part onto a radial plane, and measuring the profile. However, when the projection mode is adopted for measurement, the required steps are more, the measurement efficiency is lower, and the service of a production site is inconvenient.
Disclosure of Invention
The invention aims to provide a device for measuring the head taper of a countersunk head part, which aims to solve the technical problem of low measurement efficiency when the head taper is measured in a projection mode in the prior art.
In order to achieve the purpose, the technical scheme of the device for measuring the head taper of the countersunk head part is as follows: a kind of countersunk head part head taper measuring device, including:
a protractor;
the two measuring plates are arranged in a V shape, one ends of the two measuring plates are hinged through a hinge shaft, and the plate surfaces of the measuring plates are parallel to the central axis of the hinge shaft;
one end of each of the two measuring plates, which is hinged with each other, is provided with a notch, the notches of the two measuring plates are matched to form a through channel, the rod part of the countersunk head part penetrates through the through channel along the direction vertical to the central axis of the hinge shaft, and the through channel is positioned at one end of the hinge shaft;
The two measuring plates are respectively provided with a binding surface used for binding with the conical surface of the head part of the countersunk head part;
the protractor is arranged on the hinge shaft or one of the measuring plates and is perpendicular to the two measuring plates, the protractor can rotate relative to at least one of the two measuring plates, and one end, back to the hinge shaft, of the two measuring plates is used for being matched with the protractor to read the taper of the head of the countersunk head part.
The beneficial effects of the invention are: the through channel is positioned on one side of the hinge shaft, and can allow the rod part to pass through without influencing the relative rotation of the two measuring plates, so as to avoid the rod part. During measurement, the rod part of the countersunk head part can penetrate through the through channel, the head part of the countersunk head part is supported by the two V-shaped measuring plates, and the binding surfaces on the two measuring plates can be respectively bound with the conical surfaces of the head part of the countersunk head part by relatively rotating the two measuring plates. Moreover, the protractor is arranged on the hinge shaft or one of the measuring plates, and the numerical value can be directly read through the matching of the measuring plate and the protractor, so that the operation is convenient. When the measuring device is used, the countersunk head parts are only required to be placed into the measuring device, and the taper of the heads of the countersunk head parts can be measured by relatively rotating the two measuring plates, so that the measuring device is convenient to use, has higher efficiency and can serve a production site.
As a further optimized scheme, the number of the hinge shafts is two, the two hinge shafts are arranged at intervals along the central axis of the two hinge shafts, and the through channel is a through hole formed between the two hinge shafts.
The effect of this scheme lies in, and the through passage is the through hole, and two hinge branches divide and put in the both sides of through hole, have guaranteed the stability of two measurement board installations through two hinge branches, improve measurement accuracy.
As a further optimized scheme, the through hole sequentially comprises at least two sections along the extension direction of the central axis of the hinge shaft, and the widths of any two adjacent sections in the direction perpendicular to the central axis of the hinge shaft are different so as to allow the rod parts of countersunk parts of different specifications to pass through.
The effect of this scheme lies in, through designing the through hole for the unequal wide structure of multistage, can be applicable to the pole portion of the countersunk head class part of different specifications and pass through, improves measuring device's commonality. The situations that the rod part with large size cannot pass through when the through hole is too small and the countersunk head part with small size directly falls off when the through hole is too large are prevented.
As a further optimized scheme, the through channel sequentially comprises at least two sections along the extending direction of the central axis of the hinge shaft, and the widths of any two adjacent sections in the direction perpendicular to the central axis of the hinge shaft are different so as to allow the rod parts of countersunk parts of different specifications to pass through.
The effect of this scheme lies in, through being the unequal wide structure of multistage with the through channel design, the pole portion that can be applicable to the countersunk head class part of different specifications passes through, improves measuring device's commonality. The situations that the rod part with large size cannot pass through when the through channel is too small and the countersunk head parts with small size directly fall off when the through channel is too large are prevented.
As a further optimized scheme, the protractor is in a fan-ring structure, and is installed at one end, facing away from the hinge shaft, of one of the measuring plates.
The angle gauge has the advantages that the angle gauge is installed on one of the measuring plates, and when the angle gauge is used, the other measuring plate is only required to be rotated to measure, so that the angle gauge is more convenient to use.
As a further optimized scheme, a sharp corner is arranged at one end of the measuring plate, which is opposite to the hinge shaft, and the sharp corner in the measuring plate, which is mounted on the protractor, is aligned with a zero scale line of the protractor.
The effect of this scheme lies in, measures the closed angle of board and aligns with the zero scale mark of protractor, and the scale that another measurement board instructed is the tapering of head among the countersunk head class part, makes things convenient for the reading.
Drawings
FIG. 1 is a schematic view of a countersunk head type part;
FIG. 2 is a schematic view of a device for measuring head taper of a countersunk head part according to embodiment 1 of the present invention;
FIG. 3 is a top view of the device for measuring head taper of countersunk head parts according to embodiment 1 of the present invention;
FIG. 4 is an exploded view of the fixed and movable measurement plates of FIG. 3;
FIG. 5 is a schematic view of the use state of the device for measuring head taper of countersunk head parts according to embodiment 1 of the present invention;
description of reference numerals: 101-a rod part; 102-a head; 103-conical surface; 201-a protractor; 202-a movable measuring plate; 203-fixing the measuring plate; 204-hinge axis; 205-a fastening pin; 206-a through-hole; 2061-a first section of a through-hole; 2062-a second segment of a through hole; 2063-a third segment of a through hole; 207-pin hole; 208-a gap; 209-bump.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The features and properties of the present invention are described in further detail below with reference to examples.
The invention relates to a device for measuring the head taper of a countersunk head part, which comprises the following specific embodiments:
as shown in fig. 2 to 5, the measuring device is used for measuring the taper of the head of the countersunk head part and comprises two mutually hinged measuring plates, the two measuring plates are arranged in a V shape, a through channel is formed between the two measuring plates and can enable the rod part of the countersunk head part to pass through, the head of the countersunk head part is supported on the two measuring plates, and the joint surface of the measuring plates can be jointed on the conical surface of the head of the countersunk head part by changing the angles of the two measuring plates. The measuring device further comprises a protractor, and an included angle formed by the two measuring plates is measured by the protractor after the two measuring plates are attached to the head of the countersunk head part, and the included angle is the taper of the head of the countersunk head part.
As shown in fig. 2, 3 and 4, there are two measuring plates, one of which is fixed on the protractor 201 and is used as a fixed measuring plate 203, and the other of which can rotate relative to the protractor 201 and is used as a movable measuring plate 202. The lower ends of the fixed measuring plate 203 and the movable measuring plate 202 are hinged through a hinge shaft 204, and the central axis of the hinge shaft 204 is parallel to the plate surfaces of the fixed measuring plate 203 and the movable measuring plate 202. Specifically, as shown in fig. 4, the lower ends of the movable measuring plate 202 and the fixed measuring plate 203 are provided with protruding bumps 209, each measuring plate is provided with two bumps 209, the two bumps 209 on the same measuring plate are distributed on two sides, and the bumps 209 on the two measuring plates are arranged in a staggered manner. Each protrusion 209 is provided with a through pin hole 207, and when assembling, two hinge shafts 204 penetrate into the pin holes 207 to hinge the movable measuring plate 202 and the fixed measuring plate 203 together.
As shown in fig. 2, the protractor 201 is a fan-ring structure, and has scales thereon, and the protractor 201 is perpendicular to the two measuring plates. The upper ends of the movable measuring plate 202 and the fixed measuring plate 203 are pointed ends, and the upper ends can be matched with the scales on the protractor 201 to read. The upper end of the fixed measuring plate 203 is fixedly mounted on the protractor 201, specifically, the fixed measuring plate 203 is fixedly mounted on the protractor 201 by three fastening pins 205, and the tip of the fixed measuring plate 203 is aligned with the zero scale line of the protractor 201. During the rotation of the movable measuring plate 202, the tip of the movable measuring plate can be matched with the graduation lines of the protractor 201.
To measure the taper of the head 102 of the countersunk head part, the opposite inner sides (i.e., the abutting surfaces) of the fixed measurement plate 203 and the movable measurement plate 202 are required to abut against the head 102. To achieve this, the problem and the problem to be solved is how to make the measuring plate clear of the rod part 101, a through-channel needs to be provided between the fixed measuring plate 203 and the movable measuring plate 202. As shown in fig. 3 and fig. 4, the through channel here is a through hole 206 disposed between the two measuring plates for the rod portion 101 to penetrate, specifically, notches 208 are disposed at the lower ends of the movable measuring plate 202 and the fixed measuring plate 203, wherein the notch 208 is located between two protrusions 209 in the measuring plate, after the movable measuring plate 202 and the fixed measuring plate 203 are hinged together, the notches 208 on the movable measuring plate 202 and the fixed measuring plate 203 form a through hole 206, and the through hole 206 is through up and down. As shown in fig. 5, during measurement, a countersunk head part to be measured is placed downwards between the two measurement plates, the rod part 101 of the countersunk head part penetrates through the through hole 206, the head part 102 is supported between the movable measurement plate 202 and the fixed measurement plate 203, the plate surfaces of the movable measurement plate 202 and the fixed measurement plate 203 are attached to the head part 102 along the inclination direction of the conical surface of the head part 102 by adjusting the angle between the movable measurement plate 202 and the fixed measurement plate 203, and the angle α indicated by the movable measurement plate 202 is the taper α of the head part 102.
As shown in fig. 3 and 4, in order to adapt to the measurement of countersunk head parts with different specifications and improve the versatility of the measuring device, the through hole 206 is designed into multiple sections, the through hole 206 comprises a first section 2061, a second section 2062 and a third section 2063, the width of each section is gradually reduced, and the width direction refers to the extending direction of the through hole 206 perpendicular to the central axis of the hinge shaft 204. Through dividing into the multistage with through-hole 206, can be applicable to the measurement of the countersunk head class part of different specifications, prevent that the countersunk head class part of large-size can not put into when through-hole 206 undersize, the countersunk head class part of small-size directly drops the condition emergence when through-hole 206 oversize.
The invention relates to a specific embodiment 2 of a device for measuring the head taper of a countersunk head part:
in the embodiment 1, the tip of the fixed measuring plate is aligned with the zero scale line of the protractor, and the scale value reading of the protractor indicated by the movable measuring plate is the taper of the head. In this embodiment, the tip of the fixed measuring plate may be aligned with and fixed to the scale marks of the protractor other than the zero scale mark.
Specific embodiment 3 of the device for measuring the head taper of a countersunk head part of the present invention:
In embodiment 1, the protractor is mounted on the fixed measuring plate, and the movable measuring plate is rotatable relative to the protractor. In this embodiment, the protractor is a semicircular structure, and the protractor is fixedly mounted on the hinge shaft, and both the two measuring plates can rotate relative to the protractor.
Specific embodiment 4 of the device for measuring the head taper of a countersunk head part of the present invention:
in embodiment 1, the end of the measuring plate facing away from the hinge shaft is provided with a sharp corner to match with the scale of the protractor for reading. In this embodiment, when the thickness of the measuring plate is smaller, the measuring plate can be matched with the scales of the protractor for reading only by means of the measuring plate, and at this time, a sharp corner does not need to be arranged.
The invention relates to a specific embodiment 5 of the device for measuring the head taper of a countersunk head part:
in example 1, the through-hole is divided into three sections with different widths to adapt to countersunk head parts with different specifications. In this embodiment, the number of the through holes may be increased or decreased, such as two, or four or more. Of course, in other embodiments, the through-hole may not be segmented, and only one through-hole may be provided.
The specific embodiment 6 of the device for measuring the head taper of the countersunk head part of the invention:
in embodiment 1, there are two hinge shafts, and the through passage is a through hole located between the two hinge shafts. In this embodiment, there is only one hinge shaft, the through passage is a through groove disposed at one axial end of the hinge shaft, and at this time, countersunk head parts can be placed into the through groove from one side of the two measuring plates. The through groove may include a plurality of segments having different widths, or may have an equal width structure.
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention, the scope of the present invention is defined by the appended claims, and all structural changes that can be made by using the contents of the description and the drawings of the present invention are intended to be embraced therein.
Claims (6)
1. The utility model provides a countersunk head class part head tapering measuring device which characterized in that: the method comprises the following steps:
a protractor;
the two measuring plates are arranged in a V shape, one ends of the two measuring plates are hinged through a hinge shaft, and the plate surfaces of the measuring plates are parallel to the central axis of the hinge shaft;
one end of each of the two measuring plates, which is hinged with each other, is provided with a notch, the notches of the two measuring plates are matched to form a through channel, the rod part of the countersunk head part penetrates through the through channel along the direction vertical to the central axis of the hinge shaft, and the through channel is positioned at one end of the hinge shaft;
binding surfaces for being attached to the conical surfaces of the heads of the countersunk head parts are respectively arranged on the two measuring plates;
the protractor is arranged on the hinge shaft or one of the measuring plates and is perpendicular to the two measuring plates, the protractor can rotate relative to at least one of the two measuring plates, and one end, back to the hinge shaft, of the two measuring plates is used for being matched with the protractor to read the taper of the head of the countersunk head part.
2. The device for measuring the head taper of the countersunk head part according to claim 1, wherein: the two hinge shafts are arranged at intervals along the central axes of the two hinge shafts, and the through channel is a through hole arranged between the two hinge shafts.
3. The device for measuring the head taper of the countersunk head part according to claim 2, wherein: the through hole sequentially comprises at least two sections along the extension direction of the central axis of the hinge shaft, and the widths of any two adjacent sections in the direction perpendicular to the central axis of the hinge shaft are different so as to allow the rod parts of countersunk head parts of different specifications to pass through.
4. The device for measuring the head taper of the countersunk head part according to claim 1, wherein: the through channel sequentially comprises at least two sections along the extension direction of the central axis of the hinge shaft, and the widths of any two adjacent sections in the direction perpendicular to the central axis of the hinge shaft are different so as to allow the rod parts of countersunk head parts with different specifications to pass through.
5. The device for measuring the head taper of a countersunk head part according to claim 1, 2, 3 or 4, wherein: the protractor is of a fan-ring structure and is installed at one end, back to the hinge shaft, of one of the measuring plates.
6. The device for measuring the head taper of the countersunk head part according to claim 5, wherein: and a sharp corner is arranged at one end of the measuring plate, which is back to the hinge shaft, and the sharp corner in the measuring plate, which is arranged on the protractor, is aligned with the zero scale line of the protractor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010894840.2A CN112129206B (en) | 2020-08-31 | 2020-08-31 | Countersunk head part head taper measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010894840.2A CN112129206B (en) | 2020-08-31 | 2020-08-31 | Countersunk head part head taper measuring device |
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| CN112129206A CN112129206A (en) | 2020-12-25 |
| CN112129206B true CN112129206B (en) | 2022-07-19 |
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