CN214747718U - High-reliability inclined hole angle measuring clamp - Google Patents
High-reliability inclined hole angle measuring clamp Download PDFInfo
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- CN214747718U CN214747718U CN202120934491.2U CN202120934491U CN214747718U CN 214747718 U CN214747718 U CN 214747718U CN 202120934491 U CN202120934491 U CN 202120934491U CN 214747718 U CN214747718 U CN 214747718U
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- 238000003754 machining Methods 0.000 description 12
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- 238000012545 processing Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
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Abstract
The utility model discloses a high reliability inclined hole angular surveying anchor clamps, easy operation is convenient, measurement of efficiency is high, measurement accuracy is high, the utility model discloses a following technical scheme realizes: the protractor angle ruler, the fan-shaped vernier and the replaceable measuring rod are stacked through the fixing screw and rotate around the semicircular center of the protractor angle ruler, the stop screw passes through the circular arc rail groove which is in the same arc below the outer circle scale mark of the protractor angle ruler and is fixed on the fan-shaped vernier to slide along the circumference of the circular arc rail groove, the plane at the bottom of the protractor angle ruler is attached to the plane where a measured inclined hole is located, the replaceable measuring rod slides up and down along a replaceable measuring rod mounting hole arranged on the fan-shaped vernier, the replaceable measuring rod is inserted into the bottom of the measured inclined hole, the plane at the bottom of the protractor angle ruler is attached to the plane where the measured inclined hole is located, and the stop screw is screwed to limit the protractor angle ruler and the fan-shaped vernier to slide relatively; the deviation pointing scale between the angle line deviation angle of the angle ruler and the scale line of the overlapped edge of the rotating fan-shaped vernier is the angle of the inclination measuring hole.
Description
Technical Field
The utility model belongs to the geometric quantity measurement field relates to an inclination measuring device, to the higher product of inclined hole angle requirement, can be quick, accurate measure the actual angle of inclined hole.
Background
In the mechanical manufacturing industry, the special clamp is designed and manufactured for processing a certain process of a part and is used in the production of relatively stable products and large batches of products; it can effectively reduce the labor intensity during working, improve the labor productivity and obtain higher processing precision in the production process. The special clamp has the following main functions: (1) accurate and reliable positioning and clamping, reduces the size deviation of products, improves the precision and the replaceability of parts (2), reduces the complex operation in processing, and obtains higher productivity and processing precision. The clamp is designed as an auxiliary mechanism for machining, and the clamp is closely related to other parts for machining. In order to meet the performance and quality of parts, more and more products need to be connected by inclined holes, and the inclined holes with position precision requirements are frequently encountered in the machining process of many parts. The inclined holes not only have the requirement of dimensional accuracy, but also have the requirement of distance accuracy between the inclined holes and the inclined holes, between the inclined holes and the straight holes or on a certain plane. Aiming at more complicated inclined hole machining, as the size and form and position tolerance of the machined inclined hole cannot be directly measured in a rectangular coordinate system, the machining reference is difficult to determine, and the machining is always a difficult problem in machining. Generally, the central line of the inclined hole has higher angle requirement with the reference surface, the intersection point of the central line of the inclined hole and the inclined plane has higher requirement with the reference surface, and the size difference of the angle of the inclined hole is strictly required, and the size of the space can not be directly measured in a rectangular coordinate system. Whether the design requirements of the drawing are met cannot be determined in the machining process. If various valve bodies and shell parts have numerous inclined holes, the size difference of the angle of the strict inclined holes is controlled within +/-5', and whether the angle of the inclined holes is qualified or not usually directly influences the overall performance of a product. The inclined holes have a common feature that the center of the hole is not perpendicular to the end face of the hole. The angle in the vertical direction is a spatial angle. Because the inclined hole is difficult to find corresponding to the reference surface, the inclination is difficult to measure, the measurement difficulty is high, the measurement efficiency is low, the measurement is inaccurate, the error is large, and time and labor are wasted.
At present, various measuring instruments can measure whether the angle of the inclined hole is qualified according to the standard, such as: three-coordinate, tool setting gauge, special angle gauge, etc., but these measuring methods cannot measure the actual value of the angle of the inclined hole efficiently or accurately. Although the three-coordinate detection equipment can accurately measure the actual value of the angle of the inclined hole, in actual production, if the angle of each inclined hole is measured by adopting three coordinates, a large amount of three-coordinate resources are occupied, and the detection time of other products is delayed; meanwhile, if the angle difference of the inclined hole is detected to be unqualified, the resetting performance of the re-compensation processing is poor, the re-alignment processing is needed, a large amount of production time is delayed, and the production progress is influenced. Although the tool setting gauge can also detect the angle of the inclined hole, before measurement, a mandrel matched with the aperture of the inclined hole to be measured needs to be prepared in advance, during measurement, the mandrel is inserted into the measured inclined hole, and then the angle of the plane where the mandrel and the inclined hole of the part are located, namely the angle of the inclined hole, is measured by the tool setting gauge; however, the accuracy of measuring the angle of the inclined hole by using the tool setting gauge is only +/-1 degrees, and the actual value of the angle of the inclined hole cannot be accurately measured. The special angle gauge is used for measurement, so that whether the angle of each inclined hole is qualified or not can be only ensured, and the actual value of the angle of each inclined hole cannot be measured; and if the special angle gauge is used for measurement, corresponding angle gauges are required to be designed and manufactured for parts such as valve bodies, shells and the like with numerous inclined holes, so that the production cost is greatly increased.
Therefore, a set of measuring method capable of rapidly and accurately measuring the actual value of the angle dimension of the bevel hole protractor is needed to meet the problem in production.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a measuring device that easy operation is convenient, measurement efficiency is high, measurement accuracy is high, easy to maintain to the low, inaccurate scheduling problem of measurement of high-accuracy inclined hole angle measurement efficiency.
The utility model provides a technical scheme that technical problem adopted: a high-reliability inclined hole angle measuring clamp comprises: inlay fan-shaped vernier 2 and interchangeable measuring stick 3 on protractor bevel protractor 1, its characterized in that: the angle gauge protractor 1, the fan-shaped vernier 2 and the replaceable measuring rod 3 are sequentially laminated together through a fixing screw 6 and a compression screw 7 and rotate around the semicircular center of the angle gauge protractor 1, the stop screw 4 passes through an arc rail groove which is in the same arc below a scale mark of the outer ring of the angle gauge protractor 1 and is fixed on the fan-shaped vernier 2 to slide along the circumference of the arc rail groove, the plane of the bottom of the angle gauge protractor 1 is attached to the plane of a measured inclined hole, the replaceable measuring rod 3 slides up and down along a replaceable measuring rod mounting hole arranged on the fan-shaped vernier 2, the replaceable measuring rod 3 with the same diameter as the inclined hole is inserted into the bottom of the measured inclined hole, the angle gauge protractor 1 is rotated to completely attach the plane of the bottom of the angle gauge protractor 1 to the plane of the measured inclined hole, and the stop screw 4 is screwed down, so that the angle gauge protractor 1 and the fan-shaped vernier 2 do not slide relatively; and observing the deviation pointing scale Y 'between the angle line deviation angle X DEG of the angle gauge angle ruler 1 and the scale line of the coincident side of the rotary fan-shaped vernier 2, wherein the measured angle of the inclined hole is alpha which is X DEG + Y'.
The utility model discloses for other measurement techniques in present stage have following advantage:
simple operation, location are reliable, measurement of efficiency is high: the utility model discloses a protractor angle scale 1, fan-shaped vernier 2 and interchangeable measuring stick 3 loop through 6 stacks together of set screw, and around the rotation of protractor angle scale 1 semicircle center, the high reliability inclined hole angular surveying anchor clamps of easy operation, reliable, the high constitution of measurement efficiency in location, easy operation, location are reliable, measurement efficiency is high.
The method has the advantages of universality and replaceability: the utility model discloses an inlay fan-shaped vernier 2 and interchangeable measuring stick 3 on protractor angle square 1 when using this set of measuring fixture to measure, to the measurement of the inclined hole angle in different apertures, change the measuring stick diameter size of trading, only need change interchangeable measuring stick (measuring stick lower extreme axle diameter with by survey inclined hole aperture keep very little clearance fit can), all the other parts are general, have avoided making the problem of the manufacturing cost increase that special angle gauge caused.
The measurement is reliable, the precision is high: the utility model discloses a slip from top to bottom in the interchangeable measuring stick mounting hole of taking on interchangeable measuring stick 3 passes through fan-shaped vernier 2, will insert the inclined hole bottom of being surveyed with interchangeable measuring stick 3 of inclined hole same diameter, rotation protractor angle chi 1, laminate protractor angle chi 1 bottom plane and the plane of being surveyed inclined hole place completely, screw up check screw 4 for protractor angle chi 1 and fan-shaped vernier 2 no longer relative slip observe protractor angle chi 1 diagonal angle groove skew angle X and rotate the directional scale Y 'of skew between the fan-shaped vernier 2 coincidence limit scale mark, then survey inclined hole angle be alpha ═ X + Y'. According to the formula alpha which is X degree + Y ', after X degree (reading on the protractor angle ruler 1) and Y' (reading on the fan-shaped vernier 2) are measured, the actual size of the angle of the inclined hole measured by the user can be directly calculated, and the problem of insufficient resources of three coordinates is avoided. In the whole set of measuring clamp, only a small clearance fit between the diameter of the lower end shaft of the replaceable measuring rod and the aperture of the measured inclined hole is ensured, and the error of the measuring result can be controlled within +/-0.5'. Meanwhile, the measurement precision is also guaranteed to be within 2'.
The measuring clamp is small and exquisite and light: the measuring clamp is small, a part does not need to be taken out of the machine tool, the part can be conveniently measured in the machining process, the machining parameters are adjusted according to the measuring result, the re-alignment is not needed, and the machining quality and the machining efficiency are high. Through the set of measuring clamp, on the premise of ensuring the detection accuracy and high efficiency, production resources of three coordinates are liberated, and the three coordinates can be better put into the measurement of other high-precision parts. Can obtain the inclination direction while measuring the inclination angle, has no requirement on the placing direction of the measuring device, and has the advantages of convenient use and accurate measurement
The utility model is suitable for an inclination measurement when can't accurately find incline direction or incline direction can't place measuring equipment. The method can be used for measuring the angle of the inclined hole with different apertures, and has the advantages of accurate and reliable measurement and wide application range.
Drawings
Fig. 1 is the utility model discloses high reliability inclined hole angular surveying anchor clamps's front view.
Fig. 2 is a side sectional view of fig. 1.
Fig. 3 is a schematic view of the operation.
In the figure: the device comprises a protractor angle ruler, a fan-shaped vernier, a replaceable measuring rod, a stop-motion screw, a pressing gasket, a fixing screw and a pressing screw, wherein the protractor angle ruler is 1, the fan-shaped vernier is 2, the replaceable measuring rod is 3, the stop-motion screw is 4, the pressing gasket is 5, the fixing screw is 6, and the pressing screw is 7.
Detailed Description
Refer to fig. 1 and 2. In a preferred embodiment described below, a high reliability angled hole angle measurement fixture includes: inlay fan-shaped vernier 2 and interchangeable measuring stick 3 on protractor bevel protractor 1, its characterized in that: the angle gauge protractor 1, the fan-shaped vernier 2 and the replaceable measuring rod 3 are sequentially laminated together through a fixing screw 6 and a compression screw 7 and rotate around the semicircular center of the angle gauge protractor 1, the stop screw 4 passes through an arc rail groove which is in the same arc below a scale mark of the outer ring of the angle gauge protractor 1 and is fixed on the fan-shaped vernier 2 to slide along the circumference of the arc rail groove, the plane of the bottom of the angle gauge protractor 1 is attached to the plane of a measured inclined hole, the replaceable measuring rod 3 slides up and down along a replaceable measuring rod mounting hole arranged on the fan-shaped vernier 2, the replaceable measuring rod 3 with the same diameter as the inclined hole is inserted into the bottom of the measured inclined hole, the angle gauge protractor 1 is rotated to completely attach the plane of the bottom of the angle gauge protractor 1 to the plane of the measured inclined hole, and the stop screw 4 is screwed down, so that the angle gauge protractor 1 and the fan-shaped vernier 2 do not slide relatively; (ii) a And observing the deviation pointing scale Y 'between the angle line deviation angle X degrees of the angle gauge angle ruler 1 and the scale line of the coincident side of the fan-shaped vernier 2, wherein the measured angle of the inclined hole is alpha which is X degrees + Y'.
The projection of the section of the replaceable measuring rod 3 is a T-shaped stepped rod body, and the diameter of the lower end of the stepped rod is the same as that of the measured inclined hole and can be replaced. The up-and-down sliding of the changeable measuring rod 3 is fixed through a compression screw 7.
Loosening a stop-motion screw 4 on the fan-shaped vernier to enable the replaceable measuring rod 3 to slide up and down along the direction of a mounting hole on the fan-shaped vernier 2, then extending the lower end shaft of the replaceable measuring rod 3 into the tested inclined hole, sliding the replaceable measuring rod 3 to ensure that the lower end shaft of the replaceable measuring rod 3 completely extends into the bottom of the tested inclined hole, and screwing a compression screw 7 to ensure that the direction of the replaceable measuring rod 3 is fixed; the angle gauge angle ruler 1 is rotated, the plane at the bottom of the angle gauge angle ruler 1 is completely attached to the plane of the tested inclination hole, and the stop motion screw 4 connected with the compression gasket 5 is screwed down, so that the angle gauge angle ruler 1 and the fan-shaped vernier 2 are guaranteed not to slide relatively any more. And finally, observing the reading X degree on the angle gauge angle ruler of the angle gauge, observing the reading Y 'on the fan-shaped vernier, and calculating the angle alpha of the inclined hole according to the formula alpha which is X degrees + Y'.
The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and to the engineering skilled in the art, there can be various modifications and changes, and any modification made by the present invention, equivalent replacement and improvement should be included in the protection scope of the present invention.
Claims (3)
1. A high-reliability inclined hole angle measuring clamp comprises: inlay fan-shaped vernier (2) and interchangeable measuring stick (3) on protractor angle square (1), its characterized in that: the protractor (1), the fan-shaped vernier (2) and the replaceable measuring rod (3) are sequentially stacked together through the fixing screw (6) and the compression screw (7) and rotate around the semicircular center of the protractor (1), the stop screws (4) are fixed on the fan-shaped vernier (2) through arc rail grooves which are in the same arc below the outer ring scale mark of the protractor (1) and slide along the circumference of the arc rail grooves, the plane at the bottom of the protractor (1) is attached to the plane where the measured inclined hole is located, the replaceable measuring rod (3) slides up and down along a replaceable measuring rod mounting hole arranged on the fan-shaped vernier (2), the replaceable measuring rod (3) with the same diameter as the inclined hole is inserted into the bottom of the inclined hole to be measured, the protractor angle ruler (1) is rotated, the bottom plane of the protractor angle ruler (1) is completely attached to the plane where the inclined hole to be measured is located, the lattice setting screw (4) is screwed down, and the protractor angle ruler (1) and the fan-shaped vernier (2) are limited to slide relatively; and observing the deviation pointing scale Y 'between the angle deviation angle X DEG of the angle line of the protractor angle ruler (1) and the scale line at the overlapped side of the rotary fan-shaped vernier ()2, wherein the measured angle of the inclined hole is alpha which is X DEG + Y'.
2. The highly reliable angular measurement jig of claim 1, characterized in that: the projection of the cross section of the replaceable measuring rod (3) is a T-shaped stepped rod body, and the diameter of the lower end of the stepped rod is the same as that of the measured inclined hole and can be replaced.
3. The highly reliable angular measurement jig of claim 1, characterized in that: the upper part and the lower part of the replaceable measuring rod (3) are fixed by a compression screw (7) to slide up and down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120934491.2U CN214747718U (en) | 2021-05-03 | 2021-05-03 | High-reliability inclined hole angle measuring clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120934491.2U CN214747718U (en) | 2021-05-03 | 2021-05-03 | High-reliability inclined hole angle measuring clamp |
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| Publication Number | Publication Date |
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| CN214747718U true CN214747718U (en) | 2021-11-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120934491.2U Active CN214747718U (en) | 2021-05-03 | 2021-05-03 | High-reliability inclined hole angle measuring clamp |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116625204A (en) * | 2023-05-17 | 2023-08-22 | 中船黄埔文冲船舶有限公司 | An Axis Positioning Device and Measuring Method for Anchor Chain Tube |
| CN117180000A (en) * | 2023-04-26 | 2023-12-08 | 沈阳何氏眼科医院有限公司 | An eye axial position marker |
-
2021
- 2021-05-03 CN CN202120934491.2U patent/CN214747718U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117180000A (en) * | 2023-04-26 | 2023-12-08 | 沈阳何氏眼科医院有限公司 | An eye axial position marker |
| CN116625204A (en) * | 2023-05-17 | 2023-08-22 | 中船黄埔文冲船舶有限公司 | An Axis Positioning Device and Measuring Method for Anchor Chain Tube |
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