CN113028991A

CN113028991A - Three-dimensional micro-motion fixed measuring device for optical measured object

Info

Publication number: CN113028991A
Application number: CN202110261717.1A
Authority: CN
Inventors: 彭丽; 李刚俊; 李虹霖
Original assignee: Chengdu Technological University CDTU
Current assignee: Chengdu Technological University CDTU
Priority date: 2021-03-10
Filing date: 2021-03-10
Publication date: 2021-06-25
Anticipated expiration: 2041-03-10
Also published as: CN113028991B

Abstract

The invention discloses a three-dimensional micro-motion fixing and measuring device of an optical measured object, which comprises an instrument workbench, a U-shaped fixing component, three T-shaped fixing components and a fine-tuning component, wherein the U-shaped fixing component is arranged on the instrument workbench, the three T-shaped fixing components are respectively arranged on the peripheral wall of the instrument workbench, the connecting line of the axes of the two T-shaped fixing components is coincided with any diameter of the instrument workbench, the axis of the other T-shaped fixing component is vertical to the connecting line, and the fine-tuning components are respectively arranged on three side walls of the U-shaped fixing component. The invention can effectively control the measurement data of each section of the shaft part during measurement, so that the measurement is close to the true value.

Description

Three-dimensional micro-motion fixed measuring device for optical measured object

Technical Field

The invention relates to the technical field of measurement, in particular to a three-dimensional micro-motion fixed measuring device for an optical measured object.

Background

The vertical optical meter is a precision optical mechanical length measuring instrument, which measures the micro-size of the object by comparing a measuring block with a part, and is one of the precision instruments commonly used in a measuring chamber, a verification station or a workshop for manufacturing measuring tools, tools and precision parts. It can test five equal precision measuring blocks or one-grade precision column type gauge, and can measure the diameter of cylindrical, spherical and linear objects or thickness of plate-shaped object, and can remove optical metering tube from the instrument, and properly mount it on the machine tool, and use measuring block as control for precision machining size.

In practical applications, there are many types of precision gauges and high-precision optical gauges, such as smooth limit gauges and high-precision optical axes, but because the object to be measured has no fixing device, human errors can be generated, which results in inaccurate measurement. At present, no patent document and non-patent document report the micro-motion device for fixing the measured object of the instrument at home and abroad, no research report about the fixation of the measured object of the instrument, and no technical scheme of the device.

Disclosure of Invention

The invention aims to provide a three-dimensional micro-motion fixed measuring device of an optical measured object, which can effectively control the measured data of each section of a measuring shaft part to enable the measurement to be close to a true value so as to solve the technical problem mentioned in the background technology.

The purpose of the invention is realized by the following technical scheme:

the utility model provides a three-dimensional fine motion fixed measurement device of optics testee, includes instrument workstation, the fixed subassembly of U type, the fixed subassembly of three T type and fine setting subassembly, the fixed subassembly of U type is installed on the instrument workstation, it is three the fixed subassembly of T type is installed respectively on the perisporium of instrument workstation, and wherein two the line of the axis of the fixed subassembly of T type with any diameter coincidence of instrument workstation, another one the axis of the fixed subassembly of T type with the line is perpendicular, all install one on the three lateral wall of the fixed subassembly of U type fine setting subassembly.

The three-dimensional micro-motion fixed measuring device of the optical measured object, disclosed by the invention, can be used for micro-motion adjustment and then measurement fixation of the measured object placed on an instrument workbench through the micro-tuning assemblies arranged on the three side walls of the U-shaped fixing assembly, effectively controlling the radial positioning of the measured shaft part, effectively controlling the measurement data of each section of the shaft part during measurement, enabling the measurement to be close to a real value, and avoiding the artificial error caused by moving the measured shaft part by depending on hands during measurement.

Further, the instrument workbench comprises a supporting workbench body and a first fixing bolt arranged on the peripheral wall of the supporting workbench body, and the axis of the first fixing bolt is parallel to the axis of the object to be measured.

The beneficial effects of the preferred embodiment are as follows: the U-shaped fixing assembly is placed on the supporting platform body of the instrument workbench, the measured object is placed on the supporting platform body and located in the U-shaped fixing assembly, and the axis of the first fixing bolt is parallel to the axis of the measured object, so that comparison and measurement are facilitated.

Further, the T-shaped fixing assembly comprises an L-shaped fixing block, a second fixing bolt and a third fixing bolt, threaded holes are formed in the side wall of the L-shaped fixing block and the peripheral wall of the instrument workbench, the second fixing bolt penetrates through the threaded holes to fixedly install the L-shaped fixing block on the peripheral wall of the instrument workbench, and the third fixing bolt penetrates through the threaded holes in the side wall of the L-shaped fixing block to fix the second fixing bolt.

The beneficial effects of the preferred embodiment are as follows: the L-shaped fixing block of the T-shaped fixing assembly is fixed to the instrument workbench through the U-shaped fixing assembly under the matching action of the second fixing bolt and the third fixing bolt, the length of the second fixing bolt can be selected as required, so that the space surrounded by the three L-shaped fixing blocks is adjustable, the U-shaped fixing assemblies of different sizes can be fixed, and a measured object of different sizes can be measured.

Furthermore, the first end of the T-shaped fixing component is attached to the side wall of the U-shaped fixing component, and the second end of the T-shaped fixing component is attached to the peripheral wall of the instrument workbench.

The beneficial effects of the preferred embodiment are as follows: the first end of the T-shaped fixing component is attached to the side wall of the U-shaped fixing component, and the second end of the T-shaped fixing component is attached to the second end of the T-shaped fixing component, so that the U-shaped fixing component is fixedly installed.

Further, the U-shaped fixing assembly comprises a U-shaped fixing block, and the three side walls of the U-shaped fixing block are provided with one fine adjustment assembly.

The beneficial effects of the preferred embodiment are as follows: all install one on the three lateral wall of U type fixed block fine setting subassembly, fine setting subassembly can fix a position the testee.

Further, the fine setting subassembly includes two adjusting screw, all seted up on the three lateral wall of U type fixed block with adjusting screw complex screw thread through-hole, be equipped with the scale on adjusting screw's the screw rod.

The beneficial effects of the preferred embodiment are as follows: the adjusting screw of the fine adjustment assembly can be screws with different scale specifications, the adjusting screw can control the shaft diameter of a measured object, the measured object can be axially and radially positioned according to the micromotion of the measured object, and the measurement data of each section of the measurement shaft part can be effectively controlled.

The invention has the beneficial effects that:

the three-dimensional micro-motion fixed measuring device of the optical measured object of the invention has the advantages that through the micro-adjusting components arranged on the three side walls of the U-shaped fixed component, the object to be measured placed on the instrument worktable is subjected to micro-motion adjustment and then is fixed, the object to be measured can be subjected to micro-motion in the radial direction and the axial direction, the included angle between the measuring head of the optical measuring meter and the axial line is always 90 degrees in the micro-motion process, after the object to be measured is subjected to micro-motion, by adjusting the length of the adjusting screw extending into the U-shaped fixing component, positioning and comparative measurement of the measured object after micro-motion are completed, in contrast, if no micro-motion measuring device is provided, the measurement will deviate from the highest point, the device can effectively control the radial positioning of the shaft part to be measured in the measuring process, effectively control the measuring data of each section of the shaft part in the measuring process, the measurement is close to the true value, and the human error caused by moving the measured shaft parts by hands during measurement is avoided.

Drawings

FIG. 1 is a schematic structural diagram of a three-dimensional micro-motion fixed measuring device of an optical object to be measured according to the present invention;

FIG. 2 is a second schematic structural view of the three-dimensional micro-motion fixing and measuring device of the optical object to be measured according to the present invention;

in the figure, 1-an instrument workbench, 101-a supporting platform body, 102-a first fixing bolt, 2-U-shaped fixing components, 201-U-shaped fixing blocks, 3-T-shaped fixing components, 301-L-shaped fixing blocks, 302-a second fixing bolt, 303-a third fixing bolt, 4-a fine adjustment component and 401-an adjusting screw.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.

Example 1

The invention provides a technical scheme that:

referring to fig. 1-2, a three-dimensional micro-motion fixing and measuring device for an optical object to be measured includes an instrument table 1, a U-shaped fixing assembly, three T-shaped fixing assemblies 3 and a micro-adjusting assembly 4, wherein the U-shaped fixing assembly is installed on the instrument table 1, the three T-shaped fixing assemblies 3 are respectively installed on the peripheral wall of the instrument table 1, a connecting line of the axes of the two T-shaped fixing assemblies 3 coincides with any diameter of the instrument table 1, the axis of the other T-shaped fixing assembly 3 is perpendicular to the connecting line, and the micro-adjusting assembly 4 is installed on each of three side walls of the U-shaped fixing assembly.

In this embodiment, the three-dimensional micro-motion fixed measuring device for an optical measured object of the present invention performs micro-motion adjustment, then performs fixation and re-measurement on the measured object placed on the instrument worktable 1 through the micro-tuning assemblies 4 disposed on the three side walls of the U-shaped fixing assembly, can effectively control the radial positioning of the measured shaft parts, and can also effectively control the measurement data of each section of the shaft parts during measurement, so that the measurement approaches the true value, thereby avoiding the artificial error caused by moving the measured shaft parts by hand during measurement.

Referring to fig. 1, the instrument table 1 includes a supporting table body 101 and a first fixing bolt 102 disposed on a peripheral wall of the supporting table body 101, and an axis of the first fixing bolt 102 is parallel to an axis of an object to be measured.

In this embodiment, a U-shaped fixing assembly is disposed on the supporting platform 101 of the instrument workbench 1, the object to be measured is disposed on the supporting platform 101 and located in the U-shaped fixing assembly, and the first fixing bolt 102 is used for adjusting the instrument workbench 1, so as to facilitate comparison and measurement.

Referring to fig. 1-2, the T-shaped fixing assembly 3 includes an L-shaped fixing block 301, a second fixing bolt 302 and a third fixing bolt 303, wherein threaded holes are formed in the side wall of the L-shaped fixing block 301 and the peripheral wall of the instrument workbench 1, the second fixing bolt 302 is inserted into the threaded holes to fix the L-shaped fixing block 301 to the peripheral wall of the instrument workbench 1, and the third fixing bolt 303 is inserted into the threaded holes in the side wall of the L-shaped fixing block 301 to fix the second fixing bolt 302.

In this embodiment, the L-shaped fixing block 301 of the T-shaped fixing assembly 3 is used to fix the U-shaped fixing assembly to the instrument workbench 1 under the cooperation of the second fixing bolt 302 and the third fixing bolt 303, and the length of the second fixing bolt 302 can be selected as required, so that the space surrounded by the three L-shaped fixing blocks 301 is adjustable, and therefore the U-shaped fixing assemblies of different sizes can be fixed, and the object to be measured of different sizes can be measured.

Referring to fig. 1-2, a first end of the T-shaped fixing member 3 is attached to a side wall of the U-shaped fixing member, and a second end of the T-shaped fixing member 3 is attached to a peripheral wall of the instrument table 1.

In this embodiment, the first end of the T-shaped fixing component 3 is attached to the side wall of the U-shaped fixing component, and the second end of the T-shaped fixing component 3 is attached to the second end of the T-shaped fixing component 3, so as to complete the fixing and installation of the U-shaped fixing component.

Referring to fig. 2, the U-shaped fixing component includes a U-shaped fixing block 201, and the fine tuning component 4 is mounted on each of three side walls of the U-shaped fixing block 201.

In this embodiment, the three side walls of the U-shaped fixing block 201 are respectively provided with one fine adjustment component 4, and the fine adjustment component 4 can position the object to be measured.

Referring to fig. 2, the fine adjustment assembly 4 includes two adjustment screws 401, three side walls of the U-shaped fixing block 201 are respectively provided with a threaded through hole matched with the adjustment screw 401, and a screw of the adjustment screw 401 is provided with scales.

In this embodiment, the adjusting screw 401 of the fine adjustment assembly 4 may be a screw with different scale specifications, the adjusting screw 401 may control the diameter of the shaft of the measured object, the measured object may be axially and radially positioned according to the micro-motion of the measured object, and the measurement data of each section of the measured shaft part may be effectively controlled.

In this embodiment, the method for using the three-dimensional micro-motion fixed measuring device for the optical object to be measured is as follows:

firstly, three T-shaped fixing components 3 are installed on the periphery of an instrument workbench 1 and are synchronously fixed, then a measured object is placed on the instrument workbench 1, the axis of the measured object is parallel to the axis of a first fixing bolt 102, the measured object can perform micro-motion in the radial direction and the axial direction, the included angle between a measuring head and the axis of an optical measuring meter is 90 degrees all the time in the micro-motion process, after the measured object is subjected to micro-motion, the measured object stretches into the U-shaped fixing components by adjusting the length of an adjusting screw 401, positioning and comparative measurement after the micro-motion of the measured object are completed, and the measured data are ensured to be close to the true value.

firstly, install three T type fixed subassembly at the periphery of instrument workstation and with the fixed subassembly synchronous fixation of U type, put the measured object on the instrument workstation again for the axis of measured object is parallel with the axis of first fixing bolt, the measured object can carry out the fine motion in radial and axial, the fine motion in-process makes the contained angle of optical measurement meter's gauge head and axis be 90 degrees all the time, after the measured object fine motion, through adjusting the length that adjusting screw stretched into in the fixed subassembly of U type, accomplish the measured object fine motion back location and compare the measurement, guarantee that measured data is close to the true value.

The foregoing is illustrative of the preferred embodiments of this invention, and it is to be understood that the invention is not limited to the precise form disclosed herein and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the concept as disclosed herein, either as described above or as apparent to those skilled in the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A three-dimensional micro-motion fixed measuring device of an optical measured object is characterized in that: including instrument workstation (1), the fixed subassembly of U type (2), the fixed subassembly of three T type (3) and fine setting subassembly (4), install U type fixed subassembly (2) on instrument workstation (1), it is three the fixed subassembly of T type (3) is installed respectively on the perisporium of instrument workstation (1), and wherein two the line of the axis of the fixed subassembly of T type (3) with arbitrary diameter coincidence of instrument workstation (1), another the axis of the fixed subassembly of T type (3) with the line is perpendicular, all install one on the three lateral wall of U type fixed subassembly (2) fine setting subassembly (4).

2. The device for measuring the fixation of the micro-motion of an optical object to be measured according to claim 1, wherein: the instrument workbench (1) comprises a supporting workbench body (101) and a first fixing bolt (102) arranged on the peripheral wall of the supporting workbench body (101), wherein the axis of the first fixing bolt (102) is parallel to the axis of a measured object.

3. The device for measuring the fixation of the micro-motion of an optical object to be measured according to claim 1, wherein: the T-shaped fixing assembly (3) comprises an L-shaped fixing block (301), a second fixing bolt (302) and a third fixing bolt (303), the side wall of the L-shaped fixing block (301) and the peripheral wall of the instrument workbench (1) are all provided with threaded holes, the second fixing bolt (302) penetrates through the threaded holes to achieve the purpose that the L-shaped fixing block (301) is fixedly installed on the peripheral wall of the instrument workbench (1), and the third fixing bolt (303) penetrates through the threaded holes in the side wall of the L-shaped fixing block (301) to achieve fixing of the second fixing bolt (302).

4. The device according to claim 3, wherein the device comprises: the first end of the T-shaped fixing component (3) is attached to the side wall of the U-shaped fixing component (2), and the second end of the T-shaped fixing component (3) is attached to the peripheral wall of the instrument workbench (1).

5. The device for measuring the fixation of the micro-motion of an optical object to be measured according to claim 1, wherein: u type fixed subassembly (2) are including U type fixed block (201), all install one on the three lateral wall of U type fixed block (201) fine setting subassembly (4).

6. The device according to claim 5, wherein the device comprises: the fine setting subassembly (4) include two adjusting screw (401), all seted up on the three lateral wall of U type fixed block (201) with adjusting screw (401) complex screw thread through-hole, be equipped with the scale on the screw rod of adjusting screw (401).