CN215064203U - Measuring clamp - Google Patents
Measuring clamp Download PDFInfo
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- CN215064203U CN215064203U CN202120863549.9U CN202120863549U CN215064203U CN 215064203 U CN215064203 U CN 215064203U CN 202120863549 U CN202120863549 U CN 202120863549U CN 215064203 U CN215064203 U CN 215064203U
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- gauge stand
- measuring
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Abstract
The utility model discloses a measuring clamp relates to and measures technical field, include: the base is provided with a first groove, the first groove is used for placing an optical fiber panel, and the depth of the first groove is smaller than the height of a first step of the optical fiber panel; the gauge stand is arranged on the base and provided with a second groove, the second groove is formed in the bottom of the gauge stand, and the bottom surface of the gauge stand is used for being in contact with the end face of the first step; the fixed block is arranged on the gauge stand; and the measuring device is arranged on the fixing block and is used for measuring the height between the end face and the top surface of the optical fiber panel. Because the second groove at the bottom of the gauge stand is clamped on the end face of the first step of the optical fiber panel, the optical fiber panel is positioned in an annular mode, the problem of errors caused by different measuring points is solved, and the accuracy of measuring the height of the second step of the optical fiber panel is improved.
Description
Technical Field
The utility model relates to a measure technical field, in particular to measure anchor clamps.
Background
The optical fiber panel is an optical element applied to low-light night vision, and has special shape requirements, and fig. 1 shows several conventional optical fiber panel appearance structures. Referring to fig. 4 to 7, the optical fiber panel is a product having a step shape, so that the step height of the product needs to be detected during the product processing and the finished product inspection, such as the X-dimension in the drawing.
The commonly used scheme for measuring the height of the step of the optical fiber panel at present is to use a dial indicator to measure, firstly, a product is placed on a measuring platform, a measuring thimble is placed on the step, the dial indicator is cleared, then the measuring thimble is placed on the upper surface of the product, and the numerical value of the dial indicator is read to be the height of the step.
In the above measurement scheme, two points are respectively taken on the optical fiber panel by using the dial indicator measuring thimble to measure the step height, the scheme is simple to operate, but the defect is that the accurate measurement cannot be realized, the measurement result obtained by adopting different points has certain error under the influence of the point taking position, and particularly when the step surface has inclination or the plane has parallel difference, the measurement result has no accuracy.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a measuring clamp improves the second step height measurement's to fiber optic faceplate accuracy.
The utility model discloses a measurement anchor clamps of first aspect embodiment, include: the base is provided with a first groove, the first groove is used for placing an optical fiber panel, and the depth of the first groove is smaller than the height of a first step of the optical fiber panel; the gauge stand is arranged on the base and provided with a second groove, the second groove is formed in the bottom of the gauge stand, and the bottom surface of the gauge stand is used for being in contact with the end face of the first step; the fixed block is arranged on the gauge stand; and the measuring device is arranged on the fixing block and is used for measuring the height between the end face and the top surface of the optical fiber panel.
In a further embodiment, the base has a third groove, the third groove is used for placing the gauge stand, and the gauge stand and the third groove are in clearance fit.
In a further embodiment, a notch is arranged on the side surface of the base, a positioning optical axis is installed on the side surface of the gauge stand, and the notch is matched with the positioning optical axis.
In a further embodiment, the number of the notches is multiple, and the notches are uniformly distributed on the side surface of the base.
In a further embodiment, the number of the notches is three, and the three notches are distributed on the side face of the base in an angle of 120 degrees.
In a further embodiment, the measuring device comprises a dial indicator having a measuring thimble in contact with the top surface of the fiber optic faceplate.
In a further embodiment, the fixed block is eccentrically arranged on the gauge stand.
In a further embodiment, the base is provided with a counter bore.
The utility model discloses measurement anchor clamps has following beneficial effect at least: and (4) carrying out zero setting on the measuring device before measurement. During measurement, the optical fiber panel is placed on the first groove, the bottom of the gauge stand is clamped on the end face of the first step of the optical fiber panel, the distance from the measuring device to the top face of the optical fiber panel is calculated, the height between the end face of the first step and the top face of the optical fiber panel is obtained, and the height of the second step of the optical fiber panel is obtained. The bottom surface card of gauge stand is on the terminal surface of the first step of fiber optic panel, and second step bulge is held by the second recess, makes the gauge stand realize annular location to the terminal surface of the first step of fiber optic panel, has avoided the error problem because of the measuring point difference causes, and then has improved the second step height measurement's of fiber optic panel accuracy.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The invention will be further described with reference to the following drawings and examples, in which:
fig. 1 is an overall schematic view of a measuring jig according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of FIG. 1;
FIG. 3 is a schematic view of the embodiment of the present invention showing the return-to-zero of the dial indicator;
FIG. 4 is a schematic structural view of an optical fiber panel according to the present invention;
FIG. 5 is a top view of FIG. 4;
FIG. 6 is a schematic structural view of another optical fiber panel according to the present invention;
fig. 7 is a top view of fig. 6.
Reference numerals:
the optical fiber panel comprises an optical fiber panel 1, a base 11, a gauge stand 12, a fixing block 13, a dial indicator 14, a notch 111, a positioning optical axis 121, a measuring thimble 141, a first groove 100, a second groove 200, a counter bore 300, a top surface 101, an end surface 102, a first step 1a and a second step 1 b.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, a plurality of means is one or more, a plurality of means is two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.
In the description of the present invention, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Referring to fig. 1 to 3, the measuring jig of the embodiment of the present invention includes a base 11, a gauge stand 12, a fixing block 13 and a measuring device.
Specifically, the base 11 has a first groove 100, the first groove 100 is used for placing the optical fiber panel 1, and the depth of the first groove 100 is smaller than the height of a first step 1a of the optical fiber panel 1; the gauge stand 12 is installed on the base 11, the gauge stand 12 is provided with a second groove 200, the second groove 200 is arranged at the bottom of the gauge stand 12, and the bottom surface of the gauge stand 12 is used for contacting with the end surface 102 of the first step 1 a; the fixed block 13 is arranged on the gauge stand 12; and a measuring device is mounted on the fixing block 13, the measuring device being used for measuring the height between the end surface 102 of the first step 1a of the optical fiber panel 1 and the top surface 101 of the optical fiber panel 1.
Note that the first step height refers to a height difference between the bottom surface of the optical fiber panel 1 and the end surface of the first step 1 a; the first step height refers to a height difference between the end face of the first step 1a and the top face 101 of the fiber optic faceplate 1. Fig. 4 to 7 show two common structural forms of the optical fiber panel 1, and the application range of the measuring clamp of the present invention includes, but is not limited to, the structural forms shown in the drawings.
Before measurement, the measurement device is set to zero. During measurement, the optical fiber panel 1 is placed on the first groove 100, the bottom of the gauge stand 12 is clamped on the end face 102 of the first step 1a of the optical fiber panel 1, and then the height between the end face 102 of the first step 1a of the optical fiber panel 1 and the top face 101 of the optical fiber panel 1 is measured through the measuring device, so that the height of the first step 1b of the optical fiber panel 1 is obtained. Because the second groove 200 at the bottom of the gauge stand 12 is clamped on the end surface 102 of the first step 1a of the optical fiber panel 1, the optical fiber panel 1 is positioned in an annular manner, so that the error problem caused by different measuring points is solved, and the accuracy of measuring the height of the first step 1b of the optical fiber panel 1 is improved. Due to the arrangement of the base 11 and the first groove 100, when in measurement, the optical fiber panel 1 can be measured by taking points for many times only by putting the optical fiber panel 1 into the first groove 100, so that the surface damage or scratch of the optical fiber panel 1 is avoided.
In the present embodiment, the base 11 and the bezel 12 are cylindrical, and the axis of the bezel 12 coincides with the axis of the base 11.
In one possible embodiment, the measuring device includes a dial indicator 14, the dial indicator 14 having a measuring thimble 141, the measuring thimble 141 being in contact with the top surface 101 of the fiber optic faceplate 1. The dial indicator 14 is fixed through a locking screw on the fixing block 13, a tapered threaded hole is formed in the outer surface of the fixing block 13, and the fixing block 13 is fixed to the indicator base 12 through the tapered threaded hole. During measurement, the dial indicator 14 is set to zero, as shown in fig. 3. Then, the measuring thimble 141 is adjusted to contact with the top surface 101 of the optical fiber panel 1, and then the data on the dial indicator 14 is the height of the first step 1b to be measured.
In one possible embodiment, the fixed block 13 is eccentrically arranged on the watch base 12, as shown in fig. 1 and 2. In order to reduce the measurement error, a plurality of measurement points on the optical fiber panel 1 need to be selected for measurement. The fixed block 13 is eccentrically arranged on the gauge stand 12, when a measuring point needs to be changed, the gauge stand 12 is only required to be taken out and rotated by a certain angle and then installed on the base 11, and the dial indicator 14 is used for measuring, so that the measuring efficiency and the accuracy are improved.
In a possible embodiment, the base 11 has a third groove for placing the watch base 12, and the watch base 12 is in clearance fit with the third groove. When the third groove of the base 11 and the outer diameter of the gauge stand 12 are processed, the outer diameter of the gauge stand 12 and the inner diameter of the third groove are processed according to the requirement of clearance fit, so that the gauge stand 12 can smoothly slide on the base 11, the positioning precision of the gauge stand 12 is ensured, and errors caused by measurement are avoided.
In a possible embodiment, the side of the base 11 is provided with a notch 111, the side of the watch seat 12 is provided with a positioning optical axis 121, and the notch 111 matches with the positioning optical axis 121. The length direction of the notch 111 coincides with the axial direction of the base 11, the positioning optical axis 121 is installed on the side surface of the gauge stand 12 and extends in the radial direction of the gauge stand 12, and the positioning optical axis 121 and the axial direction of the gauge stand 12 are on the same plane. In actual measurement, the matching positioning of the notch 111 and the positioning optical axis 121 is utilized to ensure that the axial direction of the gauge stand 12 is always consistent with the axial direction of the base 11 in the process that the gauge stand 12 moves along the third groove, so that the measurement accuracy of the measurement clamp is ensured.
In a possible embodiment, the number of the notches 111 is multiple, and the notches 111 are evenly distributed on the side surface of the base 11. In measurement, the positioning optical axis 121 is placed in one of the notches 111, and then the measurement is performed on the optical fiber panel 1. After the measurement is finished, the gauge stand 12, the fixed block 13 and the dial indicator 14 are integrally taken out from the first groove 100 of the base 11, then the gauge stand 12 is rotated to enable the positioning optical axis 121 to be aligned with the other notch 111, then the gauge stand 12, the fixed block 13 and the dial indicator 14 are integrally placed into the first groove 100 of the base 11, and then the height of the optical fiber panel 1 is measured. And repeating the steps to obtain the heights of the plurality of measuring points, and then sorting the measuring data to reduce the measuring error.
In this embodiment, the number of the notches 111 is three, and the three notches 111 are distributed on the side surface of the base 11 at 120 °. The positioning is realized by the cooperation of the positioning optical axis 121 and the three notches 111 of the base 11, and the measurement of three measurement points with 120 degrees intervals on the top surface 101 of the optical fiber panel 1 is added. Because the measuring points are distributed at 120 degrees on the top surface 101 of the optical fiber panel 1, the influence on the measuring result caused by the selection of the measuring points is reduced.
In a possible embodiment, the base 11 is provided with a counter-sunk hole 300. Wherein, this counter sink 300 is cylindricality counter sink 300, sets up counter sink 300 on base 11, conveniently fixes base 11 to the desktop or measure on the seat, realizes measuring fixture's installation.
The measuring jig according to an embodiment of the present invention will be described in detail with a specific embodiment with reference to fig. 1 to 3. It is to be understood that the following description is illustrative only and is not intended as a specific limitation on the invention.
The step of measuring the height of the first step 1b of the fiber optic faceplate comprises:
referring to fig. 3, firstly, determining a zero point position of the dial indicator 14, taking a plane sample plate to contact with the bottom of the gauge stand 12, keeping the plane sample plate and the gauge stand in close contact, and then, zeroing the dial indicator 14, thereby completing the determination of the measurement origin position of the dial indicator 14;
putting the optical fiber panel 1 to be measured into the first groove 100 of the base 11, holding the measuring part of the fixture, namely, the measuring part comprises the gauge stand 12, the fixed block 13, the dial indicator 14 and the positioning optical axis 121, putting the measuring part of the fixture into the third groove of the base 11, paying attention to make the positioning optical axis 121 slide into the notch 111 on the base 11, when the gauge stand 12 is completely contacted with the end surface 102 of the first step 1a of the optical fiber panel 1, keeping the gauge stand 12 closely contacted with the end surface 102 of the first step 1a of the optical fiber panel 1, at this time, the measuring thimble 141 is completely contacted with the top surface 101 of the optical fiber panel 1, and reading the value on the dial indicator is the height of the first step 1b of the optical fiber panel 1.
And taking out the measuring part of the clamp, repeating the operation, matching the positioning optical axis 121 with the other two notches 111 of the base 11, and completing the measurement of the second measuring point and the third measuring point on the top surface 101 of the optical fiber panel 1, thus completing the measurement of the product.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art. Furthermore, the embodiments of the present invention and features of the embodiments may be combined with each other without conflict.
Claims (8)
1. A measurement jig, comprising:
the base is provided with a first groove, the first groove is used for placing an optical fiber panel, and the depth of the first groove is smaller than the height of a first step of the optical fiber panel;
the gauge stand is arranged on the base and provided with a second groove, the second groove is formed in the bottom of the gauge stand, and the bottom surface of the gauge stand is used for being in contact with the end face of the first step;
the fixed block is arranged on the gauge stand; and
and the measuring device is arranged on the fixing block and is used for measuring the height between the end face and the top surface of the optical fiber panel.
2. The measurement fixture of claim 1, wherein the base has a third groove for receiving the bezel, the bezel being in clearance fit with the third groove.
3. The measuring clamp according to claim 2, wherein a notch is arranged on the side surface of the base, a positioning optical axis is installed on the side surface of the gauge stand, and the notch is matched with the positioning optical axis.
4. The measuring fixture of claim 3, wherein the number of the notches is multiple, and the notches are evenly distributed on the side surface of the base.
5. The measuring fixture of claim 4, wherein the number of the notches is three, and the three notches are distributed at 120 ° on the side surface of the base.
6. The measurement fixture of claim 1, wherein the measurement device comprises a dial indicator having a measurement spike in contact with a top surface of the fiber optic faceplate.
7. The measurement jig of claim 1, wherein the fixed block is eccentrically disposed on the gauge stand.
8. The measurement fixture of claim 1, wherein the base is provided with a counter bore.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120863549.9U CN215064203U (en) | 2021-04-25 | 2021-04-25 | Measuring clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120863549.9U CN215064203U (en) | 2021-04-25 | 2021-04-25 | Measuring clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215064203U true CN215064203U (en) | 2021-12-07 |
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ID=79109144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120863549.9U Active CN215064203U (en) | 2021-04-25 | 2021-04-25 | Measuring clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215064203U (en) |
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2021
- 2021-04-25 CN CN202120863549.9U patent/CN215064203U/en active Active
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