CN112504189A - Three-dimensional adjusting method for precision hole system position measurement clamp - Google Patents
Three-dimensional adjusting method for precision hole system position measurement clamp Download PDFInfo
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- CN112504189A CN112504189A CN202011325222.2A CN202011325222A CN112504189A CN 112504189 A CN112504189 A CN 112504189A CN 202011325222 A CN202011325222 A CN 202011325222A CN 112504189 A CN112504189 A CN 112504189A
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- support
- measuring
- positioning disc
- clamp
- hole system
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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
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
- G01B21/04—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness by measuring coordinates of points
- G01B21/047—Accessories, e.g. for positioning, for tool-setting, for measuring probes
-
- 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
- G01B5/0002—Arrangements for supporting, fixing or guiding the measuring instrument or the object to be measured
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention discloses a three-dimensional adjusting method of a precision hole system position degree measuring clamp, which is characterized in that clamp parts are assembled after being cleaned, the hole system position degree measuring clamp comprises a driving seat, the upper end part of the driving seat is fixedly connected with a positioning disc, a support arranged on the driving seat is connected with a measuring rod used for adjusting the position through a bushing, a threaded hole is formed between the support and the positioning disc, and a bolt penetrates through the threaded holes of the positioning disc and the support and connects the positioning disc and the support together; the positioning disc is provided with a spigot circle, and precision adjustment is completed by combining the UG measurement procedures of simulation, adjustment, measurement and rechecking, and the positioning disc has the advantages that: on a high-precision three-coordinate measuring machine, the actual measuring rod deviation value of the position measuring clamp is measured, simulation rechecking is carried out by adopting three-dimensional software according to the structure, the space angle and the size of the position measuring clamp, and accurate three-dimensional adjustment is carried out on a measuring rod support, so that the micron-grade position requirement of the hole system position measuring clamp is ensured, and the hole system position detection error of the thin-wall part is reduced.
Description
Technical Field
The invention relates to the field of machine manufacturing, in particular to a position adjusting method of a clamping tool.
Background
The best method for detecting the position degree of the hole system of the aero-engine component is a three-coordinate measuring machine, the using environment requirement of the three-coordinate measuring machine is strict, the measuring process of a large-sized thin-wall part is complex, batch use is not practical under the current situation, a special position degree measuring clamp has the characteristics of convenience in operation, high detection efficiency and the like, and is suitable for detecting the position degree of the hole system of the thin-wall part.
Disclosure of Invention
In order to solve the problems, the invention discloses a three-dimensional adjusting method of a precision hole system position degree measuring clamp.
The specific technical scheme is as follows:
a three-dimensional adjusting method of a precision hole series position measurement clamp comprises the following steps:
1) assembling: cleaning parts of a hole system position degree measuring clamp 1, assembling the hole system position degree measuring clamp according to the drawing requirement, wherein the hole system position degree measuring clamp comprises a driving seat, the upper end part of the driving seat is fixedly connected with a positioning disc, a support arranged on the driving seat is connected with a measuring rod used for adjusting the position through a bushing, a threaded hole is formed between the support and the positioning disc, and a bolt penetrates through the threaded holes of the positioning disc and the support and connects the positioning disc and the support together; the positioning disc is provided with a spigot circle.
2) Measurement: and fixing the hole system position measurement clamp on a three-coordinate measuring machine, establishing a coordinate system by taking the center of a spigot circle on a positioning disc as an axis and the upper end surface of the positioning disc as a reference and taking the spigot circle as a center, and measuring the position between the central axes of four threaded holes on a support and the center of the spigot circle to obtain X, X0, Y, Y0 and the deviations of angles i and j.
3) UG simulation: and respectively taking the four threaded holes of the support as references, measuring the distance from the position of the threaded hole on the support to the position of an theoretical point by using a UG three-dimensional model, wherein the theoretical point is the correct position to which the threaded hole on the driving seat needs to be adjusted, obtaining position distance values X1, X2, Y1, Y2, i1 and j1, and then combining actual values of measuring rods X, X0 and Y, Y0 and angles i and j measured by a three-coordinate measuring machine to establish an actual position model of the support.
4) Adjusting: firstly, the angular deviation of the measuring rod is solved, the angular change of the measuring rod is achieved by grinding the mounting surfaces of the support and the positioning disc according to the angular rotation value obtained by UG simulation, the value i is adjusted to the value i1, the value j is adjusted to the value j1, after the measuring clamp meets the technical requirements, the directional deviation of the measuring rod X, Y is solved, according to UG simulation deviant and direction, two dial indicators are respectively contacted with corresponding positions of the support, the compaction amount is not more than 0.1mm, and controls the adjustment amplitude, turns the dial plate of the dial indicator to zero, unscrews the other bolts except the rotation pivot, and adjusting the support in the direction X, Y to eliminate the deviation between the position of the support X, Y and the position of the theoretical point X, Y, fixing all bolts on the support after the adjustment is finished, and keeping the position of the dial indicator in the adjustment process until the adjustment is finished.
5) Measurement: and (4) after adjustment, carrying out measurement by a three-coordinate measuring machine, if the numerical values of X, X0, Y, Y0 and the angles i and j are different from the numerical values of X1, X2, Y1, Y2 and i1 and j1, repeating the steps until the measurement results of X, X0 and Y, Y0 and the directions of the angles i and j meet the technical requirements of a measuring clamp.
6) And (4) rechecking: and (3) detecting the position degree of the rod again under the free state of the hole system position degree measuring clamp, and repeating the steps 3-6 until all the measuring rods meet the technical requirements of the measuring clamp.
The invention has the advantages that: according to the structure, the space angle and the size of the position measurement clamp, three-dimensional software is adopted for simulation rechecking, and the measuring rod support is rapidly and accurately adjusted in a three-dimensional mode, so that the micron-sized position requirement of the hole position measurement clamp is met, the hole position detection error of the thin-wall part is further reduced, and the manufacturing period of the hole position measurement clamp is shortened by 15%.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the measuring rod and the spigot circle at an angle i in front view;
FIG. 3 is a schematic top view of the spindle and the spigot circle at an angle j;
FIG. 4 is a schematic view of the position relationship between the support and the spigot circle;
FIG. 5 is a schematic structural view of the support, the positioning plate and the dial indicator in the direction X, Y.
Detailed Description
The present invention is described in detail below with reference to the accompanying drawings, and as shown in the figures, a three-dimensional adjustment method for a precision hole position measurement jig includes the following steps:
1) assembling: cleaning parts of a hole system position degree measuring clamp 1, assembling the hole system position degree measuring clamp 1 according to drawing requirements, wherein the hole system position degree measuring clamp comprises a driving seat 2, the upper end part of the driving seat 2 is fixedly connected with a positioning disc 3, a support 4 arranged on the driving seat is connected with a measuring rod 5 used for adjusting the position through a lining 6, a threaded hole 41 is formed between the support and the positioning disc, and a bolt 5 penetrates through the threaded holes of the positioning disc and the support and connects the positioning disc 3 with the support 4; the positioning plate 3 is provided with a spigot circle 31.
2) Measurement: fixing the hole system position measurement clamp on a three-coordinate measuring machine, establishing a coordinate system by taking the circle center of a spigot circle 31 on a positioning disc as an axis and taking an upper end face 32 of the positioning disc as a reference and taking the spigot circle as a center, measuring the position between the central axes of four threaded holes on a support and the circle center of the spigot circle to obtain X, X0, Y, Y0 and deviations of angles i and j, wherein the X, Y direction is shown in fig. 5, the angle i is an included angle between the central axis of the spigot circle 31 and the central axis of a measuring rod 5 as shown in fig. 2 when viewed from a front view, and the angle j is an included angle between the connecting line of the center of the measuring rod 5 and the center of the spigot circle and the radial axis of the measuring rod as shown in fig. 3 when viewed from a top view.
3) UG simulation: and respectively taking the four threaded holes of the support as references, measuring the distance from the position of the threaded hole on the support to the position of an theoretical point by using a UG three-dimensional model, wherein the theoretical point is the correct position to which the threaded hole on the driving seat needs to be adjusted, obtaining position distance values X1, X2, Y1, Y2, i1 and j1, and then combining actual values of measuring rods X, X0 and Y, Y0 and angles i and j measured by a three-coordinate measuring machine to establish an actual position model of the support.
4) Adjusting: firstly, the angular deviation of the measuring rod is solved, the angular change of the measuring rod is achieved by grinding the mounting surfaces of the support and the positioning disc according to the angular rotation value obtained by UG simulation, the value i is adjusted to the value i1, the value j is adjusted to the value j1, after the measuring clamp meets the technical requirements, the directional deviation of the measuring rod X, Y is solved, according to UG simulation deviant and direction, two dial indicators 7 are respectively contacted with corresponding positions of the support, the compaction amount is not more than 0.1mm, and controls the adjustment amplitude, turns the dial plate of the dial indicator to zero, unscrews the other bolts except the rotary fulcrum 42, and adjusting the support in the direction X, Y to eliminate the deviation between the position of the support X, Y and the position of the theoretical point X, Y, fixing all bolts on the support after the adjustment is finished, and keeping the position of the dial indicator in the adjustment process until the adjustment is finished.
5) Measurement: and (4) after adjustment, carrying out measurement by a three-coordinate measuring machine, if the numerical values of X, X0, Y, Y0 and the angles i and j are different from the numerical values of X1, X2, Y1, Y2 and i1 and j1, repeating the steps until the measurement results of X, X0 and Y, Y0 and the directions of the angles i and j meet the technical requirements of a measuring clamp.
6) And (4) rechecking: and (3) detecting the position degree of the rod again under the free state of the hole system position degree measuring clamp, and repeating the steps 3-6 until all the measuring rods meet the technical requirements of the measuring clamp.
The support and the positioning plate are fixed together through the combination of an industrial repairing agent and the positioning pins, the adoption of the pin hole and pin shaft assembling mode is more favorable for reducing the error between the support and the positioning plate, and if the adoption of the mode that the positioning plate and the support are assembled in a threaded mode, gaps are generated, and the precision is influenced.
Claims (1)
1. A three-dimensional adjusting method of a precision hole system position measurement clamp is characterized by comprising the following steps:
1) assembling: cleaning parts of the hole system position degree measuring clamp, assembling the hole system position degree measuring clamp according to drawing requirements, wherein the hole system position degree measuring clamp comprises a driving seat, the upper end part of the driving seat is fixedly connected with a positioning disc, a support arranged on the driving seat is connected with a measuring rod used for adjusting the position through a bushing, a threaded hole is formed between the support and the positioning disc, and a bolt penetrates through the threaded holes of the positioning disc and the support and connects the positioning disc and the support together; the positioning disc is provided with a spigot circle.
2) Measurement: and fixing the hole system position measurement clamp on a three-coordinate measuring machine, establishing a coordinate system by taking the center of a spigot circle on a positioning disc as an axis and the upper end surface of the positioning disc as a reference and taking the spigot circle as a center, and measuring the position between the central axes of four threaded holes on a support and the center of the spigot circle to obtain X, X0, Y, Y0 and the deviations of angles i and j.
3) UG simulation: and respectively taking the four threaded holes of the support as references, measuring the distance from the position of the threaded hole on the support to the position of an theoretical point by using a UG three-dimensional model, wherein the theoretical point is the correct position to which the threaded hole on the driving seat needs to be adjusted, obtaining position distance values X1, X2, Y1, Y2, i1 and j1, and then combining actual values of measuring rods X, X0 and Y, Y0 and angles i and j measured by a three-coordinate measuring machine to establish an actual position model of the support.
4) Adjusting: firstly, the angular deviation of the measuring rod is solved, the angular change of the measuring rod is achieved by grinding the mounting surfaces of the support and the positioning disc according to the angular rotation value obtained by UG simulation, the value i is adjusted to the value i1, the value j is adjusted to the value j1, after the measuring clamp meets the technical requirements, the directional deviation of the measuring rod X, Y is solved, according to UG simulation deviant and direction, two dial indicators are respectively contacted with corresponding positions of the support, the compaction amount is not more than 0.1mm, and controls the adjustment amplitude, turns the dial plate of the dial indicator to zero, unscrews the other bolts except the rotation pivot, and adjusting the support in the direction X, Y to eliminate the deviation between the position of the support X, Y and the position of the theoretical point X, Y, fixing all bolts on the support after the adjustment is finished, and keeping the position of the dial indicator in the adjustment process until the adjustment is finished.
5) Measurement: and (4) after adjustment, carrying out measurement by a three-coordinate measuring machine, if the numerical values of X, X0, Y, Y0 and the angles i and j are different from the numerical values of X1, X2, Y1, Y2 and i1 and j1, repeating the steps until the measurement results of X, X0 and Y, Y0 and the directions of the angles i and j meet the technical requirements of a measuring clamp.
6) And (4) rechecking: and (3) detecting the position degree of the rod again under the free state of the hole system position degree measuring clamp, and repeating the steps 3-6 until all the measuring rods meet the technical requirements of the measuring clamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011325222.2A CN112504189B (en) | 2020-11-24 | 2020-11-24 | Three-dimensional adjusting method for precision hole system position measurement clamp |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011325222.2A CN112504189B (en) | 2020-11-24 | 2020-11-24 | Three-dimensional adjusting method for precision hole system position measurement clamp |
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| CN112504189A true CN112504189A (en) | 2021-03-16 |
| CN112504189B CN112504189B (en) | 2022-03-29 |
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| CN202011325222.2A Active CN112504189B (en) | 2020-11-24 | 2020-11-24 | Three-dimensional adjusting method for precision hole system position measurement clamp |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113245957A (en) * | 2021-04-20 | 2021-08-13 | 汪峰 | High-precision deviation-preventing type numerically controlled grinder |
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Cited By (1)
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| CN113245957A (en) * | 2021-04-20 | 2021-08-13 | 汪峰 | High-precision deviation-preventing type numerically controlled grinder |
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| CN112504189B (en) | 2022-03-29 |
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