CN215893545U

CN215893545U - Coaxiality measuring instrument with moving function

Info

Publication number: CN215893545U
Application number: CN202122151027.9U
Authority: CN
Inventors: 束庆邦
Original assignee: Xi'an Krill Electronic Technology Co ltd
Current assignee: Xi'an Krill Electronic Technology Co ltd
Priority date: 2021-09-07
Filing date: 2021-09-07
Publication date: 2022-02-22
Anticipated expiration: 2031-09-07

Abstract

The utility model discloses a coaxiality measuring instrument with a moving function, which belongs to the technical field of coaxiality measurement, and comprises a positioning seat, a shaft sleeve, an expansion sleeve, a moving connecting rod, a measuring head, a sensor and the like, wherein the positioning seat comprises a positioning disc and an outer tube which are coaxially arranged; one end of the movable connecting rod is provided with a measuring head, a sensor is arranged on the measuring head, and the sensor is connected with an upper computer in a wired or wireless mode. Compared with the prior art, the utility model can rapidly and stably position the positioning seat at the central position of the cavity to be measured by utilizing the expansion sleeve structure on one hand, and can accurately move the measuring head by utilizing the movable connecting rod on the other hand, thereby obviously improving the measuring precision by reducing the shaking and swinging in the measuring process.

Description

Coaxiality measuring instrument with moving function

Technical Field

The utility model belongs to the technical field of coaxiality measurement, and particularly relates to a coaxiality measuring instrument with a moving function.

Background

The coaxiality measuring system is used for measuring the coaxiality between the outer wall surface of the round rod in the hole and the cylinder and giving the deviation magnitude and direction. Currently, there are various concentricity measurement instruments on the market, for example: photosynthetic JHL-WDL03E type concentricity measuring instrument, Irelaceae A-10 type concentricity measuring instrument and the like have similar structures and functions, most of the instruments are manually measured and controlled, data needs to be manually read, and data cannot be transmitted to a computer. Meanwhile, when the requirement of high-precision measurement is met, the requirement cannot be met. In particular, a part of the coaxiality measuring system lacks a radial positioning structure, so that the system is easy to shake or swing in a measuring hole, and data deviation is caused. In addition, the sensors of the system cannot be accurately moved and fixed, so that the depth distance of the sensors cannot be acquired.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a coaxiality measuring instrument with a moving function, which can rapidly and stably position a positioning seat at the center of a cavity to be measured by using an expansion sleeve structure, and can accurately move a measuring head by using a movable connecting rod, so that the measuring precision is remarkably improved by reducing the shaking and swinging in the measuring process.

The utility model solves the problems through the following technical means:

the utility model provides a axiality measuring apparatu with remove function, includes positioning seat, axle sleeve, inflation cover, removes connecting rod, measuring head and sensor, wherein: the positioning seat is composed of a positioning disc and an outer tube which are coaxially arranged, through holes are formed in the centers of the positioning disc and the outer tube, positioning screw holes are formed in the positioning disc, and positioning screws are installed in the positioning screw holes; the shaft sleeve consists of a drawing disc, an inner pipe and a base plate which are coaxially arranged, the drawing disc is arranged on the outer side of the inner pipe, the base plate is detachably arranged on the inner side of the inner pipe through threads, through holes are formed in the drawing disc, the base plate and the center of the inner pipe, a limiting screw hole is formed in the drawing disc, a limiting screw is arranged in the limiting screw hole, and the inner pipe is movably arranged in the outer pipe; the expansion sleeve is sleeved on the outer pipe, and two ends of the expansion sleeve are arranged between the positioning plate and the chassis; the movable setting of one end of removal connecting rod is in the through-hole of axle sleeve, and the other end of removal connecting rod is installed the measuring head, install the sensor on the measuring head, the sensor connects the host computer through wired or wireless mode.

Preferably, a plurality of expansion grooves are symmetrically formed in the expansion sleeve, and ring grooves for installing the expansion sleeve are formed in the side wall of the positioning disc and the side wall of the chassis.

Preferably, the tail end of the movable connecting rod is provided with a limiting head, movable scale marks are uniformly arranged on the movable connecting rod, and a limiting groove matched with the limiting screw to work is formed in the surface of the movable connecting rod.

Preferably, one end of the movable connecting rod, which is close to the measuring head, is provided with a vertical wiring hole, and the center of the movable connecting rod is provided with a transverse wiring hole.

Preferably, the movable connecting rod is formed by combining a plurality of hollow rods through threaded connecting ports.

Preferably, the measuring head is a triangular structure, the triangular structure is provided with a central through hole and a side mounting hole, the central through hole is used for mounting the movable connecting rod, the side mounting hole is used for mounting the sensor, and a fixing screw for fixing the movable connecting rod and a dismounting screw for fixing the sensor are arranged on the side wall of the triangular structure.

Preferably, the top of the triangular body structure is provided with a supporting head, and two sides of the bottom of the triangular body structure are provided with positioning arc edges.

Preferably, the supporting head is used for contacting the inner wall of the cavity to be measured, and the tail end of the supporting head is of an elastic hemispherical structure or an elastic cylinder structure.

Preferably, the sensor is a spectrum confocal displacement sensor, and the spectrum confocal displacement sensor is used for measuring the distance from the sensor to the inner wall of the cavity to be measured or the distance from the sensor to the outer wall of the round rod to be measured.

The coaxiality measuring instrument with the moving function has the following beneficial effects:

this scheme has used measuring head, removal connecting rod, inflation cover, axle sleeve and positioning seat structure based on the confocal displacement sensor's of spectrum accurate range finding ability, can realize the confocal displacement sensor's of spectrum accurate removal and locking. In addition, the expansion sleeve can be quickly expanded and positioned under the interaction of the shaft sleeve and the positioning seat, the measuring instrument is reliably fixed at the axis position of the hole to be measured, and the measuring instrument can be reset only by loosening the positioning screw after the measurement is finished. Finally, the front-back movement distance of the probe can be intuitively controlled by moving the scale marks, and the sensor can be driven to rotate by rotating the movable connecting rod, so that data of different angles can be acquired.

Drawings

The utility model is further described below with reference to the figures and examples.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an external schematic view of the locating socket and bushing of the present invention;

FIG. 3 is a schematic view of the locating socket and bushing interior of the present invention;

FIG. 4 is a schematic view of the structure of the expansion shell of the present invention;

FIG. 5 is a schematic view of the moving link structure of the present invention;

fig. 6 is a schematic view of the internal structure of the moving link of the present invention.

FIG. 7 is a schematic end view of a measuring head of the present invention;

fig. 8 is a side schematic view of a measuring head of the present invention.

In the figure, 1-a positioning seat, 101-a positioning disc, 102-an outer tube, 103-a positioning screw hole, 104-a positioning screw, 2-a shaft sleeve, 201-a drawing disc, 202-an inner tube, 203-a chassis, 204-a limiting screw hole, 205-a limiting screw, 3-an expansion sleeve, 301-an expansion groove, 4-a movable connecting rod and 401-a limiting head, 402-scale mark, 403-limit groove, 404-vertical wiring hole, 405-horizontal wiring hole, 406-threaded connector, 5-measuring head, 501-central through hole, 502-side mounting hole, 503-fixing screw, 504-dismounting screw, 505-support head, 506-positioning arc edge, 6-sensor, 7-cavity to be measured and 8-round rod to be measured.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

The present invention will be described in detail below with reference to the accompanying drawings.

As shown in fig. 1 to 8, the coaxiality measuring instrument with the moving function comprises a positioning seat 1, a shaft sleeve 2, an expansion sleeve 3, a moving connecting rod 4, a measuring head 5 and a sensor 6, wherein: positioning seat 1 installs the port department at the chamber 7 that awaits measuring, 2 mobilizable suits of axle sleeve are in the inside of positioning seat 1, 3 suits of inflation cover are on axle sleeve 2, the removal of axle sleeve 2 can drive inflation cover 3 deformations, the measuring head 5 is connected to the one end of removal connecting rod 4, can drive the measuring head 5 through removing connecting rod 4 and remove, be provided with one or more sensor 6 on the measuring head 5, sensor 6 is the confocal displacement sensor of spectrum, the confocal displacement sensor of spectrum is used for measuring sensor 6 to the distance of the chamber 7 inner wall that awaits measuring, or the distance of measuring sensor 6 to 8 outer walls of round bar that await measuring.

In the figure, the positioning seat 1 is composed of a positioning disc 101 and an outer tube 102 which are coaxially arranged, through holes are arranged in the centers of the positioning disc 101 and the outer tube 102, a positioning screw hole 103 is arranged on the positioning disc 101, a positioning screw 104 is installed in the positioning screw hole 103, and the positioning screw 104 is used for limiting the movement of the shaft sleeve 2. The shaft sleeve 2 is composed of a drawing disc 201, an inner pipe 202 and a base plate 203 which are coaxially arranged, the drawing disc 201 is arranged on the outer side of the inner pipe 202, the base plate 203 is detachably arranged on the inner side of the inner pipe 202 through threads, through holes are formed in the drawing disc 201, the base plate 203 and the center of the inner pipe 202, a limiting screw hole 204 is formed in the drawing disc 201, a limiting screw 205 is arranged in the limiting screw hole 204, the limiting screw 205 is used for limiting the movement of the movable connecting rod 4, the inner pipe 202 is movably arranged in the outer pipe 102, the expansion sleeve 3 is sleeved on the outer pipe 102, and two ends of the expansion sleeve 3 are arranged between the positioning disc 101 and the base plate 203; one end of the movable connecting rod 4 is movably arranged in the through hole of the shaft sleeve 2, the other end of the movable connecting rod 4 is provided with a measuring head 5, the measuring head 5 is provided with a sensor 6, and the sensor 6 is connected with an upper computer in a wired or wireless mode.

In this embodiment, a plurality of expansion grooves 301 are symmetrically formed in the expansion sleeve 3, and ring grooves for mounting the expansion sleeve 3 are formed in the side walls of the positioning plate 101 and the bottom plate 203. During actual work, the measuring instrument is placed into the cavity 7 to be measured, then the drawing disc 201 is pulled outwards, the expansion sleeve 3 is driven to expand outwards to achieve positioning, and at the moment, the positioning screw 104 is screwed down to achieve overall positioning. Next, the position of the moving link 4 is adjusted, and then the moving link 4 is locked by the limit screw 205.

It should be noted that the end of the movable connecting rod 4 is provided with a limiting head 401, the movable connecting rod 4 is uniformly provided with movable scale lines 402, the surface of the movable connecting rod 4 is provided with limiting grooves 403 cooperating with the limiting screws 205, the number of the limiting grooves 403 may be multiple, and the multiple limiting grooves 403 are distributed at equal angles. One end of the movable connecting rod 4 close to the measuring head 5 is provided with a vertical wiring hole 404, and the center of the movable connecting rod 4 is provided with a transverse wiring hole 405. The movable link 4 is formed by combining a plurality of hollow rods through the screw connection ports 406.

In this example, the measuring head 5 is a triangular structure, the triangular structure is provided with a central through hole 501 and a side mounting hole 502, the central through hole 501 is used for mounting the movable link 4, the side mounting hole 502 is used for mounting the sensor 6, and a fixing screw 503 for fixing the movable link 4 and a dismounting screw 504 for fixing the sensor 6 are arranged on the side wall of the triangular structure. The top of the triangular body structure is provided with a supporting head 505, two sides of the bottom of the triangular body structure are provided with positioning arc edges 506, the supporting head 505 is used for contacting the inner wall of the cavity 7 to be measured, and the tail end of the supporting head 505 is of an elastic hemispherical structure or an elastic column structure. It should be noted that the supporting head 505 and the positioning arc edges 506 on both sides form a three-point positioning technical scheme, and the elastic fulcrum can improve the adaptability of the scheme.

The technical scheme is very suitable for measuring the concentricity of the cathode, and the prior measuring algorithm is adopted in the actual measurement process, and the basic principle is as follows: and measuring the circle center positions of two different sections, and determining the angle and the size of the axis deviation. 1) Taking the inner wall of the hole as a reference, measuring the parallelism of the outer wall bus of the measured rod and the inner wall bus of the hole from the vertical direction and the horizontal direction respectively 2) in the current measuring system, carrying out three-point calibration by accurately controlling the depth of a measuring point, measuring the inclination angle of the bus 3) and carrying out axis offset correction after the parallelism correction of the bus is finished through multiple measurements.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides a axiality measuring apparatu with remove function, its characterized in that includes positioning seat (1), axle sleeve (2), inflation cover (3), removes connecting rod (4), measuring head (5) and sensor (6), wherein:

the positioning seat (1) is composed of a positioning disc (101) and an outer tube (102) which are coaxially arranged, through holes are formed in the centers of the positioning disc (101) and the outer tube (102), a positioning screw hole (103) is formed in the positioning disc (101), and a positioning screw (104) is installed in the positioning screw hole (103);

the shaft sleeve (2) is composed of a drawing disc (201), an inner pipe (202) and a chassis (203) which are coaxially arranged, the drawing disc (201) is arranged on the outer side of the inner pipe (202), the chassis (203) is detachably arranged on the inner side of the inner pipe (202) through threads, through holes are formed in the centers of the drawing disc (201), the chassis (203) and the inner pipe (202), a limiting screw hole (204) is formed in the drawing disc (201), a limiting screw (205) is arranged in the limiting screw hole (204), and the inner pipe (202) is movably arranged in the outer pipe (102);

the expansion sleeve (3) is sleeved on the outer pipe (102), and two ends of the expansion sleeve (3) are arranged between the positioning plate (101) and the chassis (203);

the one end of removal connecting rod (4) is mobilizable to be set up in the through-hole of axle sleeve (2), and the other end of removal connecting rod (4) is installed measuring head (5), install sensor (6) on measuring head (5), sensor (6) are through wired or wireless mode connection host computer.

2. The coaxiality measuring instrument with the moving function as claimed in claim 1, wherein a plurality of expansion grooves (301) are symmetrically formed in the expansion sleeve (3), and annular grooves for mounting the expansion sleeve (3) are formed in the side wall of the positioning plate (101) and the side wall of the bottom plate (203).

3. The coaxiality measuring instrument with the moving function according to claim 1, wherein a limiting head (401) is arranged at the tail end of the moving connecting rod (4), moving scale marks (402) are uniformly arranged on the moving connecting rod (4), and a limiting groove (403) matched with the limiting screw (205) is arranged on the surface of the moving connecting rod (4).

4. The coaxiality measuring instrument with the moving function according to claim 3, wherein one end of the moving connecting rod (4) close to the measuring head (5) is provided with a vertical wiring hole (404), and the center of the moving connecting rod (4) is provided with a transverse wiring hole (405).

5. The coaxiality measuring instrument with the moving function according to claim 3, wherein the moving link (4) is formed by combining a plurality of hollow rods through a screw connection port (406).

6. The coaxiality measuring instrument with the moving function according to claim 1, wherein the measuring head (5) is a triangular structure, the triangular structure is provided with a central through hole (501) and side mounting holes (502), the central through hole (501) is used for mounting the moving connecting rod (4), the side mounting holes (502) are used for mounting the sensor (6), and a fixing screw (503) for fixing the moving connecting rod (4) and a dismounting screw (504) for fixing the sensor (6) are arranged on the side wall of the triangular structure.

7. The coaxiality measuring instrument with the moving function according to claim 6, wherein a supporting head (505) is arranged at the top of the triangular body structure, and positioning arc edges (506) are arranged at two sides of the bottom of the triangular body structure.

8. The coaxiality measuring instrument with the moving function according to claim 7, wherein the support head (505) is used for contacting the inner wall of the cavity (7) to be measured, and the end of the support head (505) is of an elastic hemispherical structure or an elastic cylindrical structure.

9. The coaxiality measuring instrument with the moving function according to claim 1, wherein the sensor (6) is a spectral confocal displacement sensor for measuring a distance from the sensor (6) to an inner wall of the cavity (7) to be measured or a distance from the sensor (6) to an outer wall of the round bar (8) to be measured.