CN216745779U - Threaded hole position degree measuring gauge - Google Patents
Threaded hole position degree measuring gauge Download PDFInfo
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- CN216745779U CN216745779U CN202122170110.0U CN202122170110U CN216745779U CN 216745779 U CN216745779 U CN 216745779U CN 202122170110 U CN202122170110 U CN 202122170110U CN 216745779 U CN216745779 U CN 216745779U
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Abstract
The utility model provides a threaded hole position degree measuring gauge which is used for measuring the mounting position of a threaded hole in a rear frame and comprises a bolt, a plurality of positioning blocks and a position template; an X axis and a Y axis are arranged on the position template, the contact surface of the position template and the rear frame to be detected is horizontal, and the contact surface is set as a Z axis; the positioning blocks are respectively arranged on an X axis and a Y axis, and each coordinate axis is provided with at least two positioning blocks; the position template is provided with a plurality of through holes with determined positions relative to an X axis and a Y axis, and the diameter of each through hole is 5-8 per mill larger than the small diameter of the threaded hole to be detected; the bolt is matched with the through hole. The threaded hole position degree measuring gauge provided by the utility model is simple in structure. The method is convenient to operate and easy to realize, reduces the time consumption of the existing measurement operation, improves the production efficiency and saves the labor cost.
Description
Technical Field
The utility model relates to the field of machining and measurement, in particular to a threaded hole position degree measuring gauge.
Background
The threaded mounting hole M8X 0.75-6H of the male and female joint on the rear frame has higher requirement on the position degree, the theoretical correct size is designed as X-direction and Y-direction reference, and the position tolerance is 0.02mm (as shown in figure 2). The existing measuring method adopts a three-coordinate measuring machine for measurement, can quantitatively detect the position error of a hole, has high measuring precision, but has complicated and complicated measuring process and strict measuring environment requirement, and the measuring and positioning and clamping time of the three-coordinate measuring machine is about 5-10min and the measuring time is about 3-4h for every 1 rear frame part, so that the production progress is easily delayed, and the measuring cost is high. And a three-coordinate machine is needed to be used during measurement, so that the cost is high.
Therefore, a tool for measuring the position degree of the threaded hole, which is simple, convenient and quick to measure, needs to be provided.
Disclosure of Invention
The utility model aims to provide a measuring and detecting tool which is simple in structure, convenient to operate and easy to realize, so as to solve the problems in the existing detecting method.
The utility model provides a threaded hole position degree measuring gauge which is used for measuring the mounting position of a threaded hole in a rear frame and comprises a bolt, a plurality of positioning blocks and a position template;
an X axis and a Y axis are arranged on the position template, the contact surface of the position template and the rear frame to be detected is horizontal, and the contact surface is set as a Z axis;
the positioning blocks are respectively arranged on an X axis and a Y axis, and each coordinate axis is provided with at least two positioning blocks;
the position template is provided with a plurality of through holes with determined positions relative to an X axis and a Y axis, and the diameter of each through hole is 5-8 permillage larger than the diameter of the threaded hole to be detected;
the bolt is matched with the through hole.
The threaded hole position degree measuring gauge provided by the utility model is also characterized in that one end of the bolt matched with the through hole is an optical axis, and the other end of the bolt is provided with a reticulate pattern knurl.
The threaded hole position degree measuring gauge provided by the utility model is also characterized in that the diameter of the through hole is
The diameter of the optical axis is
The threaded hole position degree measuring gauge provided by the utility model is also characterized in that the positioning block is embedded into the position template, and the matching clearance is H7/k 6.
The threaded hole location degree measuring gauge provided by the utility model is also characterized in that the mutual perpendicularity among the reference surfaces where the X axis, the Y axis and the Z axis are located is less than 0.01 mm.
The threaded hole position degree measuring gauge provided by the utility model is also characterized in that the position of the through hole is the same as that of the threaded hole on the standard rear frame.
The threaded hole position degree measuring gauge provided by the utility model is also characterized in that a plurality of weight-reducing grooves are formed in the position template.
The detection tool for measuring the position degree of the threaded hole is also characterized in that the detection tool is further provided with a handle, and the handle is arranged on the top surface corresponding to the surface where the Z axis is located.
The threaded hole position degree measuring gauge provided by the utility model is also characterized in that the handle is fixedly connected to the position template through fixing pieces at two ends.
The threaded hole location degree measuring gauge provided by the utility model is also characterized in that the fixing piece is a fastening screw.
Compared with the prior art, the utility model has the beneficial effects that:
the threaded hole position degree measuring gauge provided by the utility model is simple in structure. The method is convenient to operate and easy to realize, reduces the time consumption of the existing measurement operation, improves the production efficiency and saves the labor cost.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of a threaded hole position degree measuring gauge provided by the utility model;
FIG. 2 is a schematic structural diagram of a rear frame part to be measured;
wherein, 1: a bolt; 2: a handle; 3: positioning blocks; 4: a position template; 5: and (5) fastening the screw.
Detailed Description
In order to make the technical means, creation features, achievement purposes and effects of the utility model easy to understand, the following embodiments specifically illustrate the measuring tool for measuring the position degree of the threaded hole provided by the utility model with reference to the accompanying drawings.
In the description of the embodiments of the present invention, it should be understood that the terms "central", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only used for convenience in describing and simplifying the description of the present invention, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to a number of indicated technical features. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the utility model, the meaning of "a plurality" is two or more unless otherwise specified.
The terms "mounted," "connected," and "coupled" are to be construed broadly and may, for example, be fixedly coupled, detachably coupled, or integrally coupled; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.
As shown in fig. 1, an embodiment of the utility model provides a threaded hole location degree measuring gauge, which is used for measuring a threaded hole mounting position on a rear frame, and comprises a bolt 1, a plurality of positioning blocks 3 and a position template 4; an X axis and a Y axis are arranged on the position template 4, the contact surface of the position template 4 and the rear frame to be detected is horizontal, and the contact surface is set as a Z axis; the positioning blocks 3 are respectively arranged on an X axis and a Y axis, and at least two positioning blocks 3 are arranged on each coordinate axis; the position template 4 is provided with a plurality of through holes with determined positions relative to an X axis and a Y axis, and the diameter of each through hole is 5-8 per mill larger than the small diameter of the threaded hole to be detected; the bolt 1 is matched with the through hole. In this embodiment, there are two positioning blocks 3 on the X axis and the Y axis, and there are 36 through holes corresponding to the threaded holes on the part to be measured.
In some embodiments, one end of the plug pin 1, which is matched with the through hole, is an optical axis, and the other end is provided with a knurled pattern.
In some embodiments, the diameter of the through hole is
The diameter of the optical axis is
In some embodiments, the positioning block 3 is embedded in the position template 4 with a fit clearance of H7/k 6.
In some embodiments, the mutual perpendicularity between the reference planes of the X-axis, the Y-axis and the Z-axis is less than 0.01 mm.
In some embodiments, the through hole is located at the same position as the threaded hole on the standard back frame.
In some embodiments, the position template 4 is provided with a plurality of weight-reducing slots. The weight-reducing grooves have eight
In some embodiments, the checking fixture is further provided with a handle 2, and the handle 2 is arranged on a top surface corresponding to the surface where the Z axis is located.
In some embodiments, the handle 2 is fixedly connected to the position template through fixing pieces at two ends.
In some embodiments, the fixing member is a fastening screw 5.
In some embodiments, the bolt 1 is made of bearing steel GCr15, Rockwell hardness HRC60-65, surface roughness Ra0.08, and subjected to surface rust prevention treatment, and the diameter of the optical axis end is
Knurled end diameter of
And the reticulate pattern knurl m is 0.2. The material of the handle 2 is ICr18Ni9Ti with the specification of phi 10mm and the surface roughness value Ra0.8, the surface of the handle 2 is passivated, and the handle 2 is provided with a group of threaded holes with the depth of 16H and the depth of 2-M4-7H. The positioning block 3 is made of bearing steel GCr15, Rockwell hardness HRC60-65, surface roughness Ra0.08 and subjected to surface rust prevention treatment. The position template 4 is made of bearing steel GCr15, Rockwell hardness HRC60-65, non-injection edge rounding R0.3, non-injection hole chamfer R0.3, surface roughness value Ra0.08, and surface rust prevention treatment. The position template 4 has 36 diameters
The positioning sizes of the X direction and the Y direction of the through hole are consistent with the theoretical correct size of the design, the perpendicularity of the through hole relative to a datum Z surface is phi 0.008mm, the position degree of the through hole is phi 0.008mm, and the flatness of the Z datum is 0.009 mm. The position template 4 is provided with 8 weight-reducing grooves (through grooves), wherein the length of 4 large weight-reducing grooves is 102mm multiplied by the width of 100mm, and the length of 4 small weight-reducing grooves is 100mm multiplied by the width of 50 mm. The fastening screw 5 is a standard GB/T819.2-1997 standard M4X 28 national standard screw made of 1Cr18Ni9 Ti. Two ends of the handle are fixed on the position template 4 by adopting 4 fastening screws 5 in a threaded connection mode, the fit clearance of the positioning block 3 embedded in the position template 4 is H7/k6, and the mutual perpendicularity of the reference Z, X, Y surfaces is 0.01 mm.
The working process is as follows:
for the position tolerance of 36 threaded holes to be detected on the rear frame to be detected, the position template 4 is placed on the surface of the threaded hole to be detected of the rear frame, a three-dimensional coordinate is established and positioned and aligned according to the reference Z, X, Y on the position template 4, the optical axis end of the plug pin 1 is slightly and parallelly sent into the threaded hole to be detected, the plug pin cannot deflect and cannot rotate so as to avoid severe abrasion. And the like, and respectively insert 36 bolts 1. The bolt 1 can smoothly enter the rear frame threaded hole to be detected through the position template 4 to contact with the bottom of the threaded hole, and the position tolerance of the rear frame threaded hole to be detected is proved to be qualified. If the bolt 1 cannot be inserted into the rear frame threaded hole to be tested through the position template 4, the position tolerance of the rear frame threaded hole to be tested is proved to be out of tolerance, each rear frame threaded hole to be tested is measured once, and the qualified/unqualified result is recorded.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention. The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A threaded hole position degree measuring gauge is used for measuring the mounting position of a threaded hole in a rear frame and is characterized by comprising a bolt, a plurality of positioning blocks and a position template;
an X axis and a Y axis are arranged on the position template, the contact surface of the position template and the rear frame to be detected is horizontal, and the contact surface is set as a Z axis;
the positioning blocks are respectively arranged on an X axis and a Y axis, and each coordinate axis is provided with at least two positioning blocks;
the position template is provided with a plurality of through holes with determined positions relative to an X axis and a Y axis, and the diameter of each through hole is 5-8 per mill larger than the small diameter of the threaded hole to be detected;
the bolt is matched with the through hole.
2. The threaded hole location degree measurement gauge according to claim 1, wherein one end of the plug pin, which is matched with the through hole, is an optical axis, and the other end of the plug pin is provided with a knurled pattern.
3. The threaded hole true position measurement gauge of claim 2, wherein the diameter of the through hole is
The diameter of the optical axis is
4. The threaded hole location degree measurement gauge according to claim 1, wherein the positioning block is embedded in the location template, and the fit clearance is H7/k 6.
5. The threaded hole location degree measurement gauge according to claim 1, wherein mutual perpendicularity among reference planes in which the X axis, the Y axis and the Z axis are located is less than 0.01 mm.
6. The threaded hole location degree measurement gauge according to claim 1, wherein the through hole is located at the same position as a threaded hole in a standard rear frame.
7. The tool for measuring the location degree of the threaded hole according to claim 1, wherein the location template is provided with a plurality of weight-reducing grooves.
8. The threaded hole location degree measurement gauge according to claim 1, wherein a handle is further arranged on the gauge, and the handle is arranged on a top surface corresponding to the surface where the Z axis is located.
9. The tool according to claim 8 wherein the handle is fixedly attached to the position template by fasteners at both ends.
10. The threaded hole true position measurement gauge of claim 9, wherein the fixture is a fastening screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122170110.0U CN216745779U (en) | 2021-09-08 | 2021-09-08 | Threaded hole position degree measuring gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122170110.0U CN216745779U (en) | 2021-09-08 | 2021-09-08 | Threaded hole position degree measuring gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216745779U true CN216745779U (en) | 2022-06-14 |
Family
ID=81907635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122170110.0U Active CN216745779U (en) | 2021-09-08 | 2021-09-08 | Threaded hole position degree measuring gauge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216745779U (en) |
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2021
- 2021-09-08 CN CN202122170110.0U patent/CN216745779U/en active Active
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