CN221006274U - Workpiece measuring device and measuring system - Google Patents

Abstract

The utility model provides a workpiece measuring device and a measuring system, wherein the workpiece measuring device comprises: the measuring table is used for placing a workpiece to be measured, a measuring head is arranged on the measuring table, and the measuring head can be inserted into a hole to be measured of the workpiece to be measured placed on the measuring table; the rotating assembly can be in limit fit with a workpiece to be measured placed on the measuring table so as to drive the workpiece to be measured to rotate; when the workpiece to be measured rotates, different positions in the circumferential direction of the hole to be measured can sequentially correspond to the measuring part of the measuring head so as to measure parameters to be measured of the hole to be measured. Based on the technical scheme of the utility model, based on the structural design of the measuring structure and the rotating structure, the related parameters at different positions in the circumferential direction of the hole to be measured can be automatically measured, and compared with manual measurement, the measuring precision and the measuring efficiency are greatly improved.

Description

Workpiece measuring device and measuring system

Technical Field

The utility model relates to the technical field of workpiece sorting and measuring, in particular to a workpiece measuring device and a workpiece measuring system.

Background

At present, various workpieces are required to be measured in terms of technological parameters so as to sort and classify the workpieces according to the corresponding technological parameters. For example, the current measurement sorting for flanges is mainly based on the process parameters of the central hole of the flange. At present, the measurement operation of the technological parameters of the workpiece is not basically realized, a large amount of manual operation is still needed, and the measurement precision and the sorting result of the workpiece are adversely affected by human factors existing in the manual operation. Thus, an automated measuring device is needed to replace the manual work.

Disclosure of utility model

The utility model provides a workpiece measuring device and a workpiece measuring system, and aims to solve the problems of poor precision and low efficiency in the prior art that a workpiece is measured manually.

In a first aspect, the present utility model provides a workpiece measurement apparatus, including:

the measuring table is used for placing a workpiece to be measured, a measuring head is arranged on the measuring table, and the measuring head can be inserted into a hole to be measured of the workpiece to be measured placed on the measuring table; and

The rotating assembly can be in limit fit with the workpiece to be measured placed on the measuring table so as to drive the workpiece to be measured to rotate;

When the workpiece to be measured rotates, different positions in the circumferential direction of the hole to be measured can sequentially correspond to the measuring part of the measuring head so as to measure the parameter to be measured of the hole to be measured.

In one embodiment, the parameter to be measured includes the perpendicularity of the inner diameter of the hole to be measured and the hole to be measured.

In one embodiment, the rotating assembly drives the workpiece to be measured to intermittently rotate, the number of times of rotation is not less than 3, the rotation angle of each rotation is 90 degrees, and the interval time after each rotation is not less than 1s.

In one embodiment, an air passage is provided inside the measuring head, an air nozzle serving as the measuring part is formed on the measuring head, and an air pressure sensor is provided on the measuring head.

In one embodiment, the rotating assembly comprises a driving unit and a telescopic deflector rod connected with the driving unit, wherein the telescopic deflector rod is eccentrically arranged relative to a rotating shaft of the driving unit;

The telescopic deflector rod can extend into the corresponding assembly hole of the workpiece to be detected so as to be in limit fit with the workpiece to be detected, and the eccentric distance of the telescopic deflector rod relative to the rotating shaft is consistent with the linear distance between the assembly hole and the hole to be detected.

In one embodiment, the rotating assembly further comprises an adjusting bracket connected with the driving unit and a fitting movably arranged on the adjusting bracket, and the telescopic deflector rod is arranged on the fitting;

the assembly part can move on the adjusting bracket along the radial direction of the rotating shaft so as to adjust the eccentric distance of the telescopic deflector rod relative to the rotating shaft.

In one embodiment, the adjusting bracket comprises a first connecting plate and a second connecting plate, one end of the first connecting plate is connected with the rotating shaft, the other end of the first connecting plate is connected with the second connecting plate, a bayonet is arranged on the second connecting plate, the assembly part is movably matched in the bayonet, and the assembly part and the bayonet are positioned through a bolt.

In one embodiment, the driving unit comprises a mounting seat, wherein a driving motor and the rotating shaft are arranged on the mounting seat in parallel, and an output shaft of the driving motor is in transmission connection with the rotating shaft.

In one embodiment, the device further comprises a lifting assembly connected with the measuring table for switching the measuring table between the feeding level and the measuring level distributed along the vertical direction by lifting.

In one embodiment, workpiece in-place sensors are arranged at the loading position and the measuring position.

In one embodiment, the device further comprises a translation assembly, wherein the rotation assembly is installed on the translation assembly, and the translation assembly can drive the rotation assembly to move to correspond to or stagger with the measuring table.

In a second aspect, the present utility model provides a workpiece measurement system, including the workpiece measurement device and a measurement controller electrically connected to the workpiece measurement device.

The above-described features may be combined in various suitable ways or replaced by equivalent features as long as the object of the present utility model can be achieved.

Compared with the prior art, the workpiece measuring device and the workpiece measuring system provided by the utility model have the following beneficial effects:

According to the workpiece measuring device and the workpiece measuring system, based on the structural design of the measuring structure and the rotating structure, related parameters at different positions in the circumferential direction of the hole to be measured can be automatically measured, and compared with manual measurement, the measuring precision and the measuring efficiency are greatly improved.

Drawings

The utility model will be described in more detail hereinafter on the basis of embodiments and with reference to the accompanying drawings. Wherein:

FIG. 1 shows a structural exploded view of a workpiece measuring device of the present utility model;

FIG. 2 is a schematic view showing the structure of the workpiece measuring device of the present utility model when measuring;

fig. 3 shows a partial enlargement at the measuring station in fig. 2.

In the drawings, like parts are designated with like reference numerals. The figures are not to scale.

Reference numerals:

The device comprises a 1-measuring table, a 11-measuring head, a 2-rotating assembly, a 21-driving unit, a 211-driving motor, a 212-rotating shaft, a 22-telescopic deflector rod, a 23-adjusting bracket, a 231-first connecting plate, a 232-second connecting plate, a 24-assembly part, a 25-mounting seat, a 3-lifting assembly, a 4-translation assembly, a 5-workpiece in-place sensor, a 6-operating table, a 61-mounting hole, a 7-workpiece to be measured and a 71-assembly hole.

Detailed Description

The utility model will be further described with reference to the accompanying drawings.

Example 1

The embodiment of the utility model provides a workpiece measuring device, which comprises a measuring table 1 and a rotating assembly 2. The measuring table 1 is used for placing a workpiece 7 to be measured, the measuring table 1 is provided with a measuring head 11, and the measuring head 11 can be inserted into a hole to be measured of the workpiece 7 to be measured placed in the measuring table 1; the rotating assembly 2 can be in limit fit with the workpiece 7 to be measured placed on the measuring table 1 so as to drive the workpiece 7 to be measured to rotate.

When the workpiece 7 to be measured rotates, different positions in the circumferential direction of the hole to be measured can sequentially correspond to the measuring portion of the measuring head 11, so as to measure the parameter to be measured of the hole to be measured.

Specifically, as shown in fig. 1 to 3 of the accompanying drawings, the workpiece measuring device of the utility model mainly comprises a measuring table 1 and a rotating assembly 2 in structure.

The workpiece 7 to be measured can be placed on the measuring table 1, the measuring head 11 on the measuring table 1 can be inserted into the hole to be measured of the workpiece 7 to be measured, and the measuring head 11 and the hole to be measured are kept relatively fixed in the radial direction of the hole to be measured. Since the measuring head 11 is directly inserted into the hole to be measured of the workpiece 7 to be measured, the measuring portion of the measuring head 11 can directly measure the hole to be measured, and the measuring principle of the measuring head 11 may be different based on different parameters to be measured. For example, the surface quality of the hole wall to be measured, such as flatness and roughness, is measured by emitting laser light, sound wave and the like through the measuring part by selecting the measuring head 11 with corresponding functions.

The rotating assembly 2 can correspond to the measuring table 1, after the workpiece 7 to be measured is placed in the measuring table 1, the rotating assembly 2 can be in limit fit with the workpiece 7 to be measured, so that the workpiece 7 to be measured is driven to rotate, and the workpiece 7 to be measured is driven by the rotating assembly 2 to rotate by taking the measuring head 11 as a rotation center. In the rotation process, since the measuring head 11 is kept stationary and the workpiece 7 to be measured rotates, different positions in the circumferential direction of the hole to be measured correspond to the measuring portions of the measuring head 11 in sequence, so that different positions of the hole to be measured are measured, and finally parameters to be measured are obtained.

The workpiece measuring device provided by the utility model can automatically measure the related parameters at different positions in the circumferential direction of the hole to be measured based on the structural design of the measuring structure and the rotating structure, and compared with manual measurement, the measuring device greatly improves the measuring precision and the measuring efficiency.

In this embodiment, preferably, the parameter to be measured includes the perpendicularity between the inner diameter of the hole to be measured and the hole to be measured.

Specifically, in this embodiment, taking the parameter to be measured as an example of the inner diameter of the hole to be measured and the perpendicularity of the hole to be measured, the principle of measurement is further described in combination with the measurement of the flange workpiece as shown in fig. 3 of the accompanying drawings. The measuring part of the measuring head 11 can measure the distance between the measuring part and the hole wall of the hole to be measured, and the distance between two positions opposite to the hole wall can be measured through rotation, so that the diameter of the hole to be measured is obtained. As for the perpendicularity, since the measurement table 1 is perpendicular to the measurement head 11, if the hole to be measured is perpendicular to the end face of the workpiece 7 to be measured, when the end face of the workpiece 7 to be measured is placed on the measurement table 1, the measurement results of the measurement head 11 for the distances at different positions in the circumferential direction of the hole to be measured should be the same, so the perpendicularity can be measured accordingly.

Preferably, the rotating assembly 2 drives the workpiece 7 to be measured to intermittently rotate for at least 3 times, the rotation angle of each rotation is 90 degrees, and the interval time after each rotation is not less than 1s.

Specifically, the utility model adopts a mode of performing multipoint measurement by rotation, so the utility model further designs a rotation mode, so that the rotation component 2 drives the workpiece 7 to be measured to intermittently rotate, the angle of each rotation can be accurately controlled in a targeted manner, and enough time can be reserved for measurement of each point position.

In this embodiment, according to the specific type of the parameter to be measured, the rotation mode of 90 ° rotation each time and the rotation frequency of not less than 3 times are adopted for measuring the inner diameter and the verticality, so that the initial points of the workpiece 7 to be measured when being placed in the measuring table 1 are combined, at least four points of the hole to be measured can be measured altogether, thereby judging the verticality according to the distance data of each position, simultaneously obtaining two diameter data in two orthogonal directions, and further judging the roundness of the hole to be measured on the basis of measuring the diameter. The interval time is determined according to the measurement and data transmission requirements, and is usually not less than 1s; in this embodiment, according to the experimental result, the interval time is designed to be 1.3s, wherein 1s is used for measuring data and calculating corresponding parameters to be measured according to the measured data, and 0.3s is used for outputting the result of the parameters to be measured.

Preferably, an air passage is provided inside the measuring head 11, an air jet port as a measuring portion is formed on the measuring head 11, and an air pressure sensor is provided on the measuring head 11.

Specifically, in this embodiment, the measuring head 11 adopts a gas pressure measuring structure, the gas nozzle of the measuring head 11 ejects pressure gas to the wall of the hole to be measured, and the distance is determined according to the measured pressure change data of the reflected gas. In addition, there is another measurement mode based on the air pressure measurement structure.

The measuring head 11 is provided with a standard cylindrical sealing block with the same theoretical diameter as the hole to be measured, after the measuring head 11 is inserted into the hole to be measured, the sealing block can be theoretically sealed with the wall of the hole to be measured, and then after the air nozzle of the measuring head 11 is filled with air into the hole to be measured, the air tightness of the hole to be measured can be determined by detecting the air pressure in the hole to be measured. According to parameters such as diameter, perpendicularity and even roundness of the hole to be measured, the sealing conditions between the sealing block and the hole to be measured are different, so that the air tightness of the hole to be measured is influenced, and parameters such as diameter, perpendicularity and even roundness can be determined according to air pressure and air tightness.

Example 2

The embodiment of the utility model provides a workpiece measuring device, which comprises a measuring table 1 and a rotating assembly 2. The measuring table 1 is used for placing a workpiece 7 to be measured, the measuring table 1 is provided with a measuring head 11, and the measuring head 11 can be inserted into a hole to be measured of the workpiece 7 to be measured placed in the measuring table 1; the rotating assembly 2 can be in limit fit with the workpiece 7 to be measured placed on the measuring table 1 so as to drive the workpiece 7 to be measured to rotate.

When the workpiece 7 to be measured rotates, different positions in the circumferential direction of the hole to be measured can sequentially correspond to the measuring portion of the measuring head 11, so as to measure the parameter to be measured of the hole to be measured.

Specifically, as shown in fig. 1 to 3 of the accompanying drawings, the workpiece measuring device of the utility model mainly comprises a measuring table 1 and a rotating assembly 2 in structure.

The workpiece 7 to be measured can be placed on the measuring table 1, the measuring head 11 on the measuring table 1 can be inserted into the hole to be measured of the workpiece 7 to be measured, and the measuring head 11 and the hole to be measured are kept relatively fixed in the radial direction of the hole to be measured. Since the measuring head 11 is directly inserted into the hole to be measured of the workpiece 7 to be measured, the measuring portion of the measuring head 11 can directly measure the hole to be measured, and the measuring principle of the measuring head 11 may be different based on different parameters to be measured. For example, the surface quality of the hole wall to be measured, such as flatness and roughness, is measured by emitting laser light, sound wave and the like through the measuring part by selecting the measuring head 11 with corresponding functions.

The rotating assembly 2 can correspond to the measuring table 1, after the workpiece 7 to be measured is placed in the measuring table 1, the rotating assembly 2 can be in limit fit with the workpiece 7 to be measured, so that the workpiece 7 to be measured is driven to rotate, and the workpiece 7 to be measured is driven by the rotating assembly 2 to rotate by taking the measuring head 11 as a rotation center. In the rotation process, since the measuring head 11 is kept stationary and the workpiece 7 to be measured rotates, different positions in the circumferential direction of the hole to be measured correspond to the measuring portions of the measuring head 11 in sequence, so that different positions of the hole to be measured are measured, and finally parameters to be measured are obtained.

The workpiece measuring device provided by the utility model can automatically measure the related parameters at different positions in the circumferential direction of the hole to be measured based on the structural design of the measuring structure and the rotating structure, and compared with manual measurement, the measuring device greatly improves the measuring precision and the measuring efficiency.

In this embodiment, preferably, the parameter to be measured includes the perpendicularity between the inner diameter of the hole to be measured and the hole to be measured.

Specifically, in this embodiment, taking the parameter to be measured as an example of the inner diameter of the hole to be measured and the perpendicularity of the hole to be measured, the principle of measurement is further described in combination with the measurement of the flange workpiece as shown in fig. 3 of the accompanying drawings. The measuring part of the measuring head 11 can measure the distance between the measuring part and the hole wall of the hole to be measured, and the distance between two positions opposite to the hole wall can be measured through rotation, so that the diameter of the hole to be measured is obtained. As for the perpendicularity, since the measurement table 1 is perpendicular to the measurement head 11, if the hole to be measured is perpendicular to the end face of the workpiece 7 to be measured, when the end face of the workpiece 7 to be measured is placed on the measurement table 1, the measurement results of the measurement head 11 for the distances at different positions in the circumferential direction of the hole to be measured should be the same, so the perpendicularity can be measured accordingly.

Preferably, the rotating assembly 2 drives the workpiece 7 to be measured to intermittently rotate for at least 3 times, the rotation angle of each rotation is 90 degrees, and the interval time after each rotation is not less than 1s.

Specifically, the utility model adopts a mode of performing multipoint measurement by rotation, so the utility model further designs a rotation mode, so that the rotation component 2 drives the workpiece 7 to be measured to intermittently rotate, the angle of each rotation can be accurately controlled in a targeted manner, and enough time can be reserved for measurement of each point position.

In this embodiment, according to the specific type of the parameter to be measured, the rotation mode of 90 ° rotation each time and the rotation frequency of not less than 3 times are adopted for measuring the inner diameter and the verticality, so that the initial points of the workpiece 7 to be measured when being placed in the measuring table 1 are combined, at least four points of the hole to be measured can be measured altogether, thereby judging the verticality according to the distance data of each position, simultaneously obtaining two diameter data in two orthogonal directions, and further judging the roundness of the hole to be measured on the basis of measuring the diameter. The interval time is determined according to the measurement and data transmission requirements, and is usually not less than 1s; in this embodiment, according to the experimental result, the interval time is designed to be 1.3s, wherein 1s is used for measuring data and calculating corresponding parameters to be measured according to the measured data, and 0.3s is used for outputting the result of the parameters to be measured.

Preferably, an air passage is provided inside the measuring head 11, an air jet port as a measuring portion is formed on the measuring head 11, and an air pressure sensor is provided on the measuring head 11.

Specifically, in this embodiment, the measuring head 11 adopts a gas pressure measuring structure, the gas nozzle of the measuring head 11 ejects pressure gas to the wall of the hole to be measured, and the distance is determined according to the measured pressure change data of the reflected gas. In addition, there is another measurement mode based on the air pressure measurement structure.

The measuring head 11 is provided with a standard cylindrical sealing block with the same theoretical diameter as the hole to be measured, after the measuring head 11 is inserted into the hole to be measured, the sealing block can be theoretically sealed with the wall of the hole to be measured, and then after the air nozzle of the measuring head 11 is filled with air into the hole to be measured, the air tightness of the hole to be measured can be determined by detecting the air pressure in the hole to be measured. According to parameters such as diameter, perpendicularity and even roundness of the hole to be measured, the sealing conditions between the sealing block and the hole to be measured are different, so that the air tightness of the hole to be measured is influenced, and parameters such as diameter, perpendicularity and even roundness can be determined according to air pressure and air tightness.

Further, the rotary assembly 2 comprises a driving unit 21 and a telescopic deflector rod 22 connected with the driving unit 21, wherein the telescopic deflector rod 22 is eccentrically arranged relative to a rotary shaft 212 of the driving unit 21.

The telescopic deflector 22 can extend into the corresponding assembly hole 71 of the workpiece 7 to be measured to be in limit fit with the workpiece 7 to be measured, and the eccentric distance of the telescopic deflector 22 relative to the rotating shaft 212 is consistent with the linear distance between the assembly hole 71 and the hole to be measured.

Specifically, as shown in fig. 1 and 3 of the drawings, the rotating assembly 2 is in limit fit with the corresponding assembly hole 71 of the workpiece 7 to be tested through the telescopic deflector 22, so that the rotating assembly 2 can drive the workpiece 7 to be tested to rotate. But it is necessary to ensure that the distance between the telescopic deflector 22 and the rotation shaft 212 is consistent with the distance between the hole to be measured and the fitting hole 71, so as to avoid that the eccentric force is locally generated due to the inconsistent rotation radius of the two rotation members, and the measurement result is affected.

The assembly hole 71 on the workpiece 7 to be measured is not necessarily a hole specially used for matching with the telescopic deflector rod 22, and the telescopic deflector rod 22 can be optionally matched with various original hole structures on the workpiece 7 to be measured. Taking the flange of the measuring object of the present embodiment as an example, as shown in fig. 3 of the drawings, the hole to be measured is a center hole of the flange, and the fitting hole 71 is a connecting screw hole adjacent to the center hole.

In addition, the telescopic deflector rod 22 can adopt a cylinder structure, and a connecting rod is arranged on the telescopic end of the cylinder. A sensor may be further provided at the end of the telescopic deflector rod 22 to determine whether the telescopic deflector rod 22 is inserted into the corresponding fitting hole 71 on the workpiece 7 to be measured.

Further, the rotating assembly 2 further includes an adjusting bracket 23 connected to the driving unit 21 and a fitting 24 movably provided to the adjusting bracket 23, and the telescopic deflector 22 is provided to the fitting 24.

Wherein the fitting 24 can be moved on the adjustment bracket 23 in the radial direction of the rotation shaft 212 to adjust the eccentric distance of the telescopic deflector 22 with respect to the rotation shaft 212.

Specifically, as shown in fig. 3 of the accompanying drawings, since the distances between the holes to be measured and other assembly holes 71 of different workpieces 7 to be measured may be different, it is necessary to adjust the eccentric distance of the telescopic deflector 22 relative to the rotation shaft 212 to match the eccentric distance, so that the telescopic deflector 22 is fixed on the assembly 24, and the assembly 24 is movably arranged on the adjusting bracket 23, thereby realizing the adjustability of the position of the telescopic deflector 22.

Further, the adjusting bracket 23 includes a first connecting plate 231 and a second connecting plate 232, one end of the first connecting plate 231 is connected with the rotating shaft 212, the other end is connected with the second connecting plate 232, a bayonet is arranged on the second connecting plate 232, the fitting 24 is movably matched in the bayonet, and the fitting 24 is positioned with the bayonet through a bolt.

Specifically, as shown in fig. 3 of the drawings, a first end of the first connecting plate 231 is connected with the rotating shaft 212, a second end is connected with a first end of the second connecting plate 232, the assembly 24 is slidably matched in a bayonet of the second end of the second connecting plate 232, and a screw hole is formed at the bayonet and can be matched with a threaded bolt to abut against the assembly 24 for positioning. Fitting 24 may slide within the bayonet to adjust the relative position of telescoping shift lever 22.

In addition, the first end of the second connecting plate 232 is movably matched in the bayonet of the second end of the first connecting plate 231, the structure is the same as the assembly structure between the assembly part 24 and the second connecting plate 232, and the second connecting plate 232 can move relative to the first connecting plate 231 to adjust the height of the telescopic deflector 22 to meet different requirements.

Further, the driving unit 21 includes a mounting base 25, and a driving motor 211 and a rotating shaft 212 are disposed on the mounting base 25 in parallel, and an output shaft of the driving motor 211 is in transmission connection with the rotating shaft 212.

Specifically, as shown in fig. 1 and 2 of the drawings, the mounting seat 25 is used for mounting other components of the driving unit 21 and is connected with an external mounting structure, so that the entire rotating assembly 2 is mounted, and the mounting position of the rotating assembly 2 is located above the measuring table 1. The driving motor 211 and the rotation shaft 212 are separately provided because a space for installation needs to be reserved in consideration of the fact that the rotation shaft 212 may need to be further provided with other members. For example, a sensor may be further provided at the rotation shaft 212 to determine whether the rotation shaft 212 is aligned with the measuring head 11; a servo control member, a decelerator member, etc. may be provided at the rotation shaft 212 for accurately controlling the rotation angle of the rotation shaft 212.

Example 3

The embodiment of the utility model provides a workpiece measuring device, which comprises a measuring table 1 and a rotating assembly 2. The measuring table 1 is used for placing a workpiece 7 to be measured, the measuring table 1 is provided with a measuring head 11, and the measuring head 11 can be inserted into a hole to be measured of the workpiece 7 to be measured placed in the measuring table 1; the rotating assembly 2 can be in limit fit with the workpiece 7 to be measured placed on the measuring table 1 so as to drive the workpiece 7 to be measured to rotate.

When the workpiece 7 to be measured rotates, different positions in the circumferential direction of the hole to be measured can sequentially correspond to the measuring portion of the measuring head 11, so as to measure the parameter to be measured of the hole to be measured.

Specifically, as shown in fig. 1 to 3 of the accompanying drawings, the workpiece measuring device of the utility model mainly comprises a measuring table 1 and a rotating assembly 2 in structure.

The workpiece 7 to be measured can be placed on the measuring table 1, the measuring head 11 on the measuring table 1 can be inserted into the hole to be measured of the workpiece 7 to be measured, and the measuring head 11 and the hole to be measured are kept relatively fixed in the radial direction of the hole to be measured. Since the measuring head 11 is directly inserted into the hole to be measured of the workpiece 7 to be measured, the measuring portion of the measuring head 11 can directly measure the hole to be measured, and the measuring principle of the measuring head 11 may be different based on different parameters to be measured. For example, the surface quality of the hole wall to be measured, such as flatness and roughness, is measured by emitting laser light, sound wave and the like through the measuring part by selecting the measuring head 11 with corresponding functions.

The rotating assembly 2 can correspond to the measuring table 1, after the workpiece 7 to be measured is placed in the measuring table 1, the rotating assembly 2 can be in limit fit with the workpiece 7 to be measured, so that the workpiece 7 to be measured is driven to rotate, and the workpiece 7 to be measured is driven by the rotating assembly 2 to rotate by taking the measuring head 11 as a rotation center. In the rotation process, since the measuring head 11 is kept stationary and the workpiece 7 to be measured rotates, different positions in the circumferential direction of the hole to be measured correspond to the measuring portions of the measuring head 11 in sequence, so that different positions of the hole to be measured are measured, and finally parameters to be measured are obtained.

The workpiece measuring device provided by the utility model can automatically measure the related parameters at different positions in the circumferential direction of the hole to be measured based on the structural design of the measuring structure and the rotating structure, and compared with manual measurement, the measuring device greatly improves the measuring precision and the measuring efficiency.

In this embodiment, preferably, the parameter to be measured includes the perpendicularity between the inner diameter of the hole to be measured and the hole to be measured.

Specifically, in this embodiment, taking the parameter to be measured as an example of the inner diameter of the hole to be measured and the perpendicularity of the hole to be measured, the principle of measurement is further described in combination with the measurement of the flange workpiece as shown in fig. 3 of the accompanying drawings. The measuring part of the measuring head 11 can measure the distance between the measuring part and the hole wall of the hole to be measured, and the distance between two positions opposite to the hole wall can be measured through rotation, so that the diameter of the hole to be measured is obtained. As for the perpendicularity, since the measurement table 1 is perpendicular to the measurement head 11, if the hole to be measured is perpendicular to the end face of the workpiece 7 to be measured, when the end face of the workpiece 7 to be measured is placed on the measurement table 1, the measurement results of the measurement head 11 for the distances at different positions in the circumferential direction of the hole to be measured should be the same, so the perpendicularity can be measured accordingly.

Preferably, the rotating assembly 2 drives the workpiece 7 to be measured to intermittently rotate for at least 3 times, the rotation angle of each rotation is 90 degrees, and the interval time after each rotation is not less than 1s.

Specifically, the utility model adopts a mode of performing multipoint measurement by rotation, so the utility model further designs a rotation mode, so that the rotation component 2 drives the workpiece 7 to be measured to intermittently rotate, the angle of each rotation can be accurately controlled in a targeted manner, and enough time can be reserved for measurement of each point position.

In this embodiment, according to the specific type of the parameter to be measured, the rotation mode of 90 ° rotation each time and the rotation frequency of not less than 3 times are adopted for measuring the inner diameter and the verticality, so that the initial points of the workpiece 7 to be measured when being placed in the measuring table 1 are combined, at least four points of the hole to be measured can be measured altogether, thereby judging the verticality according to the distance data of each position, simultaneously obtaining two diameter data in two orthogonal directions, and further judging the roundness of the hole to be measured on the basis of measuring the diameter. The interval time is determined according to the measurement and data transmission requirements, and is usually not less than 1s; in this embodiment, according to the experimental result, the interval time is designed to be 1.3s, wherein 1s is used for measuring data and calculating corresponding parameters to be measured according to the measured data, and 0.3s is used for outputting the result of the parameters to be measured.

Preferably, an air passage is provided inside the measuring head 11, an air jet port as a measuring portion is formed on the measuring head 11, and an air pressure sensor is provided on the measuring head 11.

Specifically, in this embodiment, the measuring head 11 adopts a gas pressure measuring structure, the gas nozzle of the measuring head 11 ejects pressure gas to the wall of the hole to be measured, and the distance is determined according to the measured pressure change data of the reflected gas. In addition, there is another measurement mode based on the air pressure measurement structure.

The measuring head 11 is provided with a standard cylindrical sealing block with the same theoretical diameter as the hole to be measured, after the measuring head 11 is inserted into the hole to be measured, the sealing block can be theoretically sealed with the wall of the hole to be measured, and then after the air nozzle of the measuring head 11 is filled with air into the hole to be measured, the air tightness of the hole to be measured can be determined by detecting the air pressure in the hole to be measured. According to parameters such as diameter, perpendicularity and even roundness of the hole to be measured, the sealing conditions between the sealing block and the hole to be measured are different, so that the air tightness of the hole to be measured is influenced, and parameters such as diameter, perpendicularity and even roundness can be determined according to air pressure and air tightness.

Further, the rotary assembly 2 comprises a driving unit 21 and a telescopic deflector rod 22 connected with the driving unit 21, wherein the telescopic deflector rod 22 is eccentrically arranged relative to a rotary shaft 212 of the driving unit 21.

The telescopic deflector 22 can extend into the corresponding assembly hole 71 of the workpiece 7 to be measured to be in limit fit with the workpiece 7 to be measured, and the eccentric distance of the telescopic deflector 22 relative to the rotating shaft 212 is consistent with the linear distance between the assembly hole 71 and the hole to be measured.

Specifically, as shown in fig. 1 and 3 of the drawings, the rotating assembly 2 is in limit fit with the corresponding assembly hole 71 of the workpiece 7 to be tested through the telescopic deflector 22, so that the rotating assembly 2 can drive the workpiece 7 to be tested to rotate. But it is necessary to ensure that the distance between the telescopic deflector 22 and the rotation shaft 212 is consistent with the distance between the hole to be measured and the fitting hole 71, so as to avoid that the eccentric force is locally generated due to the inconsistent rotation radius of the two rotation members, and the measurement result is affected.

The assembly hole 71 on the workpiece 7 to be measured is not necessarily a hole specially used for matching with the telescopic deflector rod 22, and the telescopic deflector rod 22 can be optionally matched with various original hole structures on the workpiece 7 to be measured. Taking the flange of the measuring object of the present embodiment as an example, as shown in fig. 3 of the drawings, the hole to be measured is a center hole of the flange, and the fitting hole 71 is a connecting screw hole adjacent to the center hole.

In addition, the telescopic deflector rod 22 can adopt a cylinder structure, and a connecting rod is arranged on the telescopic end of the cylinder. A sensor may be further provided at the end of the telescopic deflector rod 22 to determine whether the telescopic deflector rod 22 is inserted into the corresponding fitting hole 71 on the workpiece 7 to be measured.

Further, the rotating assembly 2 further includes an adjusting bracket 23 connected to the driving unit 21 and a fitting 24 movably provided to the adjusting bracket 23, and the telescopic deflector 22 is provided to the fitting 24.

Wherein the fitting 24 can be moved on the adjustment bracket 23 in the radial direction of the rotation shaft 212 to adjust the eccentric distance of the telescopic deflector 22 with respect to the rotation shaft 212.

Specifically, as shown in fig. 3 of the accompanying drawings, since the distances between the holes to be measured and other assembly holes 71 of different workpieces 7 to be measured may be different, it is necessary to adjust the eccentric distance of the telescopic deflector 22 relative to the rotation shaft 212 to match the eccentric distance, so that the telescopic deflector 22 is fixed on the assembly 24, and the assembly 24 is movably arranged on the adjusting bracket 23, thereby realizing the adjustability of the position of the telescopic deflector 22.

Further, the adjusting bracket 23 includes a first connecting plate 231 and a second connecting plate 232, one end of the first connecting plate 231 is connected with the rotating shaft 212, the other end is connected with the second connecting plate 232, a bayonet is arranged on the second connecting plate 232, the fitting 24 is movably matched in the bayonet, and the fitting 24 is positioned with the bayonet through a bolt.

Specifically, as shown in fig. 3 of the drawings, a first end of the first connecting plate 231 is connected with the rotating shaft 212, a second end is connected with a first end of the second connecting plate 232, the assembly 24 is slidably matched in a bayonet of the second end of the second connecting plate 232, and a screw hole is formed at the bayonet and can be matched with a threaded bolt to abut against the assembly 24 for positioning. Fitting 24 may slide within the bayonet to adjust the relative position of telescoping shift lever 22.

In addition, the first end of the second connecting plate 232 is movably matched in the bayonet of the second end of the first connecting plate 231, the structure is the same as the assembly structure between the assembly part 24 and the second connecting plate 232, and the second connecting plate 232 can move relative to the first connecting plate 231 to adjust the height of the telescopic deflector 22 to meet different requirements.

Further, the driving unit 21 includes a mounting base 25, and a driving motor 211 and a rotating shaft 212 are disposed on the mounting base 25 in parallel, and an output shaft of the driving motor 211 is in transmission connection with the rotating shaft 212.

Specifically, as shown in fig. 1 and 2 of the drawings, the mounting seat 25 is used for mounting other components of the driving unit 21 and is connected with an external mounting structure, so that the entire rotating assembly 2 is mounted, and the mounting position of the rotating assembly 2 is located above the measuring table 1. The driving motor 211 and the rotation shaft 212 are separately provided because a space for installation needs to be reserved in consideration of the fact that the rotation shaft 212 may need to be further provided with other members. For example, a sensor may be further provided at the rotation shaft 212 to determine whether the rotation shaft 212 is aligned with the measuring head 11; a servo control member, a decelerator member, etc. may be provided at the rotation shaft 212 for accurately controlling the rotation angle of the rotation shaft 212.

Further, the device also comprises a lifting assembly 3, wherein the lifting assembly 3 is connected with the measuring table 1 so as to enable the measuring table 1 to switch between a feeding position and a measuring position distributed along the vertical direction through lifting.

Preferably, workpiece in-situ sensors 5 are arranged at both the loading position and the measuring position.

Specifically, as shown in fig. 2 of the accompanying drawings, in order to realize automatic control of the whole measuring process, a design is required for feeding and measuring stations of a workpiece to be measured, so that a lifting assembly is adopted to drive a measuring table to lift, and two stations are formed in the vertical direction. When the measuring table ascends to the feeding level, the external manipulator places the workpiece to be measured on the measuring table, then after the workpiece to be measured is sensed by the in-place sensor, the lifting assembly drives the measuring table to descend to the measuring position, and after the workpiece to be measured is sensed by the in-place sensor, the workpiece at the measuring position outputs a signal to enable the corresponding functional component to operate so as to perform measurement.

Further, the device also comprises a translation component 4, the rotation component 2 is arranged on the translation component 4, and the translation component 4 can drive the rotation component 2 to move to correspond to or stagger with the measuring table 1.

Specifically, as shown in fig. 1 and 2 of the accompanying drawings, the rotating assembly is mounted on the translation assembly through the mounting seat, and then the translation assembly can drive the rotating assembly to move to a corresponding measuring table or to be staggered with the measuring table, so that corresponding measuring actions can be conveniently performed.

Further, the whole measuring process of the workpiece measuring device of the present embodiment will be described with reference to the foregoing structural design in the present embodiment:

S100: maintaining the translation assembly in an initial position such that the rotation assembly is offset from the measurement table in a horizontal direction; the rotary assembly is enabled to operate, the telescopic deflector rod is driven to rotate to an initial position, the telescopic deflector rod avoids the central position of the measuring table, and interference with a measuring head in the center of the measuring table is avoided. In this embodiment, the initial azimuth is the 6-point direction facing the measuring station.

S200: the lifting assembly drives the measuring table to rise to a feeding level, and the external manipulator places the workpiece to be measured into the measuring table; after the workpiece to be measured is sensed by the in-situ sensor of the workpiece to be measured, the lifting assembly drives the measuring table to descend to the measuring position, and after the workpiece to be measured is sensed by the in-situ sensor of the workpiece to be measured, a measuring signal is output.

S300: according to the measurement signal, the translation component drives the rotation component to move from the initial position to correspond to the measurement table, and the rotation shaft is kept to be opposite to the measurement head of the measurement table; and then the rotating assembly finely adjusts the position of the telescopic deflector rod, and then the telescopic deflector rod extends out and is inserted into the assembly hole of the workpiece to be detected (the initial position of the telescopic deflector rod can be directly consistent with the position of the assembly hole of the workpiece to be detected through the setting of the initial position), and a sensor on the telescopic deflector rod detects whether the telescopic deflector rod is inserted into place or not.

S400: after the measuring head measures one point position of the hole to be measured, the rotating assembly drives the workpiece to be measured to rotate by a preset angle to measure the next point position, all preset point positions in the circumferential direction of the hole to be measured are measured sequentially, and measurement is completed.

S500: the telescopic deflector rod is retracted to withdraw from the assembly hole, and after the sensor judges that the telescopic deflector rod is completely withdrawn from the assembly hole, the translation assembly drives the rotation assembly to reversely move to an initial position and is staggered with the measuring table; the lifting assembly drives the measuring table to rise to a feeding level, and the manipulator takes away the measured workpiece; and after the subsequent workpiece to be measured is put in, repeating the measuring process.

Example 4

The embodiment of the utility model provides a workpiece measuring system, which comprises a workpiece measuring device and a measuring controller electrically connected with the workpiece measuring device, wherein the measuring controller is used for controlling actions of various components according to various sensing data of the measuring device and calculating corresponding parameters to be measured according to the measuring data.

The workpiece measuring device comprises a measuring table 1 and a rotating assembly 2. The measuring table 1 is used for placing a workpiece 7 to be measured, the measuring table 1 is provided with a measuring head 11, and the measuring head 11 can be inserted into a hole to be measured of the workpiece 7 to be measured placed in the measuring table 1; the rotating assembly 2 can be in limit fit with the workpiece 7 to be measured placed on the measuring table 1 so as to drive the workpiece 7 to be measured to rotate.

When the workpiece 7 to be measured rotates, different positions in the circumferential direction of the hole to be measured can sequentially correspond to the measuring portion of the measuring head 11, so as to measure the parameter to be measured of the hole to be measured.

Specifically, as shown in fig. 1 to 3 of the accompanying drawings, the workpiece measuring device of the utility model mainly comprises a measuring table 1 and a rotating assembly 2 in structure.

The workpiece 7 to be measured can be placed on the measuring table 1, the measuring head 11 on the measuring table 1 can be inserted into the hole to be measured of the workpiece 7 to be measured, and the measuring head 11 and the hole to be measured are kept relatively fixed in the radial direction of the hole to be measured. Since the measuring head 11 is directly inserted into the hole to be measured of the workpiece 7 to be measured, the measuring portion of the measuring head 11 can directly measure the hole to be measured, and the measuring principle of the measuring head 11 may be different based on different parameters to be measured. For example, the surface quality of the hole wall to be measured, such as flatness and roughness, is measured by emitting laser light, sound wave and the like through the measuring part by selecting the measuring head 11 with corresponding functions.

The rotating assembly 2 can correspond to the measuring table 1, after the workpiece 7 to be measured is placed in the measuring table 1, the rotating assembly 2 can be in limit fit with the workpiece 7 to be measured, so that the workpiece 7 to be measured is driven to rotate, and the workpiece 7 to be measured is driven by the rotating assembly 2 to rotate by taking the measuring head 11 as a rotation center. In the rotation process, since the measuring head 11 is kept stationary and the workpiece 7 to be measured rotates, different positions in the circumferential direction of the hole to be measured correspond to the measuring portions of the measuring head 11 in sequence, so that different positions of the hole to be measured are measured, and finally parameters to be measured are obtained.

The workpiece measuring device provided by the utility model can automatically measure the related parameters at different positions in the circumferential direction of the hole to be measured based on the structural design of the measuring structure and the rotating structure, and compared with manual measurement, the measuring device greatly improves the measuring precision and the measuring efficiency.

In this embodiment, preferably, the parameter to be measured includes the perpendicularity between the inner diameter of the hole to be measured and the hole to be measured.

Specifically, in this embodiment, taking the parameter to be measured as an example of the inner diameter of the hole to be measured and the perpendicularity of the hole to be measured, the principle of measurement is further described in combination with the measurement of the flange workpiece as shown in fig. 3 of the accompanying drawings. The measuring part of the measuring head 11 can measure the distance between the measuring part and the hole wall of the hole to be measured, and the distance between two positions opposite to the hole wall can be measured through rotation, so that the diameter of the hole to be measured is obtained. As for the perpendicularity, since the measurement table 1 is perpendicular to the measurement head 11, if the hole to be measured is perpendicular to the end face of the workpiece 7 to be measured, when the end face of the workpiece 7 to be measured is placed on the measurement table 1, the measurement results of the measurement head 11 for the distances at different positions in the circumferential direction of the hole to be measured should be the same, so the perpendicularity can be measured accordingly.

Preferably, the rotating assembly 2 drives the workpiece 7 to be measured to intermittently rotate for at least 3 times, the rotation angle of each rotation is 90 degrees, and the interval time after each rotation is not less than 1s.

Specifically, the utility model adopts a mode of performing multipoint measurement by rotation, so the utility model further designs a rotation mode, so that the rotation component 2 drives the workpiece 7 to be measured to intermittently rotate, the angle of each rotation can be accurately controlled in a targeted manner, and enough time can be reserved for measurement of each point position.

In this embodiment, according to the specific type of the parameter to be measured, the rotation mode of 90 ° rotation each time and the rotation frequency of not less than 3 times are adopted for measuring the inner diameter and the verticality, so that the initial points of the workpiece 7 to be measured when being placed in the measuring table 1 are combined, at least four points of the hole to be measured can be measured altogether, thereby judging the verticality according to the distance data of each position, simultaneously obtaining two diameter data in two orthogonal directions, and further judging the roundness of the hole to be measured on the basis of measuring the diameter. The interval time is determined according to the measurement and data transmission requirements, and is usually not less than 1s; in this embodiment, according to the experimental result, the interval time is designed to be 1.3s, wherein 1s is used for measuring data and calculating corresponding parameters to be measured according to the measured data, and 0.3s is used for outputting the result of the parameters to be measured.

Preferably, an air passage is provided inside the measuring head 11, an air jet port as a measuring portion is formed on the measuring head 11, and an air pressure sensor is provided on the measuring head 11.

Specifically, in this embodiment, the measuring head 11 adopts a gas pressure measuring structure, the gas nozzle of the measuring head 11 ejects pressure gas to the wall of the hole to be measured, and the distance is determined according to the measured pressure change data of the reflected gas. In addition, there is another measurement mode based on the air pressure measurement structure.

The measuring head 11 is provided with a standard cylindrical sealing block with the same theoretical diameter as the hole to be measured, after the measuring head 11 is inserted into the hole to be measured, the sealing block can be theoretically sealed with the wall of the hole to be measured, and then after the air nozzle of the measuring head 11 is filled with air into the hole to be measured, the air tightness of the hole to be measured can be determined by detecting the air pressure in the hole to be measured. According to parameters such as diameter, perpendicularity and even roundness of the hole to be measured, the sealing conditions between the sealing block and the hole to be measured are different, so that the air tightness of the hole to be measured is influenced, and parameters such as diameter, perpendicularity and even roundness can be determined according to air pressure and air tightness.

Further, the rotary assembly 2 comprises a driving unit 21 and a telescopic deflector rod 22 connected with the driving unit 21, wherein the telescopic deflector rod 22 is eccentrically arranged relative to a rotary shaft 212 of the driving unit 21.

The telescopic deflector 22 can extend into the corresponding assembly hole 71 of the workpiece 7 to be measured to be in limit fit with the workpiece 7 to be measured, and the eccentric distance of the telescopic deflector 22 relative to the rotating shaft 212 is consistent with the linear distance between the assembly hole 71 and the hole to be measured.

Specifically, as shown in fig. 1 and 3 of the drawings, the rotating assembly 2 is in limit fit with the corresponding assembly hole 71 of the workpiece 7 to be tested through the telescopic deflector 22, so that the rotating assembly 2 can drive the workpiece 7 to be tested to rotate. But it is necessary to ensure that the distance between the telescopic deflector 22 and the rotation shaft 212 is consistent with the distance between the hole to be measured and the fitting hole 71, so as to avoid that the eccentric force is locally generated due to the inconsistent rotation radius of the two rotation members, and the measurement result is affected.

The assembly hole 71 on the workpiece 7 to be measured is not necessarily a hole specially used for matching with the telescopic deflector rod 22, and the telescopic deflector rod 22 can be optionally matched with various original hole structures on the workpiece 7 to be measured. Taking the flange of the measuring object of the present embodiment as an example, as shown in fig. 3 of the drawings, the hole to be measured is a center hole of the flange, and the fitting hole 71 is a connecting screw hole adjacent to the center hole.

In addition, the telescopic deflector rod 22 can adopt a cylinder structure, and a connecting rod is arranged on the telescopic end of the cylinder. A sensor may be further provided at the end of the telescopic deflector rod 22 to determine whether the telescopic deflector rod 22 is inserted into the corresponding fitting hole 71 on the workpiece 7 to be measured.

Further, the rotating assembly 2 further includes an adjusting bracket 23 connected to the driving unit 21 and a fitting 24 movably provided to the adjusting bracket 23, and the telescopic deflector 22 is provided to the fitting 24.

Wherein the fitting 24 can be moved on the adjustment bracket 23 in the radial direction of the rotation shaft 212 to adjust the eccentric distance of the telescopic deflector 22 with respect to the rotation shaft 212.

Specifically, as shown in fig. 3 of the accompanying drawings, since the distances between the holes to be measured and other assembly holes 71 of different workpieces 7 to be measured may be different, it is necessary to adjust the eccentric distance of the telescopic deflector 22 relative to the rotation shaft 212 to match the eccentric distance, so that the telescopic deflector 22 is fixed on the assembly 24, and the assembly 24 is movably arranged on the adjusting bracket 23, thereby realizing the adjustability of the position of the telescopic deflector 22.

Further, the adjusting bracket 23 includes a first connecting plate 231 and a second connecting plate 232, one end of the first connecting plate 231 is connected with the rotating shaft 212, the other end is connected with the second connecting plate 232, a bayonet is arranged on the second connecting plate 232, the fitting 24 is movably matched in the bayonet, and the fitting 24 is positioned with the bayonet through a bolt.

Specifically, as shown in fig. 3 of the drawings, a first end of the first connecting plate 231 is connected with the rotating shaft 212, a second end is connected with a first end of the second connecting plate 232, the assembly 24 is slidably matched in a bayonet of the second end of the second connecting plate 232, and a screw hole is formed at the bayonet and can be matched with a threaded bolt to abut against the assembly 24 for positioning. Fitting 24 may slide within the bayonet to adjust the relative position of telescoping shift lever 22.

In addition, the first end of the second connecting plate 232 is movably matched in the bayonet of the second end of the first connecting plate 231, the structure is the same as the assembly structure between the assembly part 24 and the second connecting plate 232, and the second connecting plate 232 can move relative to the first connecting plate 231 to adjust the height of the telescopic deflector 22 to meet different requirements.

Further, the driving unit 21 includes a mounting base 25, and a driving motor 211 and a rotating shaft 212 are disposed on the mounting base 25 in parallel, and an output shaft of the driving motor 211 is in transmission connection with the rotating shaft 212.

Specifically, as shown in fig. 1 and 2 of the drawings, the mounting seat 25 is used for mounting other components of the driving unit 21 and is connected with an external mounting structure, so that the entire rotating assembly 2 is mounted, and the mounting position of the rotating assembly 2 is located above the measuring table 1. The driving motor 211 and the rotation shaft 212 are separately provided because a space for installation needs to be reserved in consideration of the fact that the rotation shaft 212 may need to be further provided with other members. For example, a sensor may be further provided at the rotation shaft 212 to determine whether the rotation shaft 212 is aligned with the measuring head 11; a servo control member, a decelerator member, etc. may be provided at the rotation shaft 212 for accurately controlling the rotation angle of the rotation shaft 212.

Further, the device also comprises a lifting assembly 3, wherein the lifting assembly 3 is connected with the measuring table 1 so as to enable the measuring table 1 to switch between a feeding position and a measuring position distributed along the vertical direction through lifting.

Preferably, workpiece in-situ sensors 5 are arranged at both the loading position and the measuring position.

Specifically, as shown in fig. 2 of the accompanying drawings, in order to realize automatic control of the whole measuring process, a design is required for feeding and measuring stations of a workpiece to be measured, so that a lifting assembly is adopted to drive a measuring table to lift, and two stations are formed in the vertical direction. When the measuring table ascends to the feeding level, the external manipulator places the workpiece to be measured on the measuring table, then after the workpiece to be measured is sensed by the in-place sensor, the lifting assembly drives the measuring table to descend to the measuring position, and after the workpiece to be measured is sensed by the in-place sensor, the workpiece at the measuring position outputs a signal to enable the corresponding functional component to operate so as to perform measurement.

Further, the device also comprises a translation component 4, the rotation component 2 is arranged on the translation component 4, and the translation component 4 can drive the rotation component 2 to move to correspond to or stagger with the measuring table 1.

Specifically, as shown in fig. 1 and 2 of the accompanying drawings, the rotating assembly is mounted on the translation assembly through the mounting seat, and then the translation assembly can drive the rotating assembly to move to a corresponding measuring table or to be staggered with the measuring table, so that corresponding measuring actions can be conveniently performed.

Further, the whole measuring process of the workpiece measuring device of the present embodiment will be described with reference to the foregoing structural design in the present embodiment:

S100: maintaining the translation assembly in an initial position such that the rotation assembly is offset from the measurement table in a horizontal direction; the rotary assembly is enabled to operate, the telescopic deflector rod is driven to rotate to an initial position, the telescopic deflector rod avoids the central position of the measuring table, and interference with a measuring head in the center of the measuring table is avoided. In this embodiment, the initial azimuth is the 6-point direction facing the measuring station.

S200: the lifting assembly drives the measuring table to rise to a feeding level, and the external manipulator places the workpiece to be measured into the measuring table; after the workpiece to be measured is sensed by the in-situ sensor of the workpiece to be measured, the lifting assembly drives the measuring table to descend to the measuring position, and after the workpiece to be measured is sensed by the in-situ sensor of the workpiece to be measured, a measuring signal is output.

S300: according to the measurement signal, the translation component drives the rotation component to move from the initial position to correspond to the measurement table, and the rotation shaft is kept to be opposite to the measurement head of the measurement table; and then the rotating assembly finely adjusts the position of the telescopic deflector rod, and then the telescopic deflector rod extends out and is inserted into the assembly hole of the workpiece to be detected (the initial position of the telescopic deflector rod can be directly consistent with the position of the assembly hole of the workpiece to be detected through the setting of the initial position), and a sensor on the telescopic deflector rod detects whether the telescopic deflector rod is inserted into place or not.

S400: after the measuring head measures one point position of the hole to be measured, the rotating assembly drives the workpiece to be measured to rotate by a preset angle to measure the next point position, all preset point positions in the circumferential direction of the hole to be measured are measured sequentially, and measurement is completed.

S500: the telescopic deflector rod is retracted to withdraw from the assembly hole, and after the sensor judges that the telescopic deflector rod is completely withdrawn from the assembly hole, the translation assembly drives the rotation assembly to reversely move to an initial position and is staggered with the measuring table; the lifting assembly drives the measuring table to rise to a feeding level, and the manipulator takes away the measured workpiece; and after the subsequent workpiece to be measured is put in, repeating the measuring process.

In the description of the present utility model, it should be understood that the terms "upper," "lower," "bottom," "top," "front," "rear," "inner," "outer," "left," "right," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

Although the utility model herein has been described with reference to particular embodiments, it is to be understood that these embodiments are merely illustrative of the principles and applications of the present utility model. It is therefore to be understood that numerous modifications may be made to the illustrative embodiments and that other arrangements may be devised without departing from the spirit and scope of the present utility model as defined by the appended claims. It should be understood that the different dependent claims and the features described herein may be combined in ways other than as described in the original claims. It is also to be understood that features described in connection with separate embodiments may be used in other described embodiments.

Claims (12)

1. A workpiece measurement device, comprising:

the measuring table is used for placing a workpiece to be measured, a measuring head is arranged on the measuring table, and the measuring head can be inserted into a hole to be measured of the workpiece to be measured placed on the measuring table; and

The rotating assembly can be in limit fit with the workpiece to be measured placed on the measuring table so as to drive the workpiece to be measured to rotate;

When the workpiece to be measured rotates, different positions in the circumferential direction of the hole to be measured can sequentially correspond to the measuring part of the measuring head so as to measure the parameter to be measured of the hole to be measured.

2. The workpiece measurement device of claim 1, wherein the parameter to be measured comprises an inner diameter of the hole to be measured and a perpendicularity of the hole to be measured.

3. The workpiece measurement device according to claim 1 or 2, wherein the rotation assembly drives the workpiece to be measured to intermittently rotate for at least 3 times, the rotation angle of each rotation is 90 °, and the interval time after each rotation is not less than 1s.

4. The workpiece measurement device according to claim 1 or 2, wherein an air passage is provided inside the measurement head, the air passage is formed with an air ejection port as the measurement portion on the measurement head, and an air pressure sensor is provided on the measurement head.

5. The workpiece measurement device of claim 1, wherein the rotating assembly comprises a drive unit and a telescopic deflector rod connected with the drive unit, the telescopic deflector rod being eccentrically arranged relative to a rotation axis of the drive unit;

The telescopic deflector rod can extend into the corresponding assembly hole of the workpiece to be detected so as to be in limit fit with the workpiece to be detected, and the eccentric distance of the telescopic deflector rod relative to the rotating shaft is consistent with the linear distance between the assembly hole and the hole to be detected.

6. The workpiece measuring device of claim 5, wherein the rotating assembly further comprises an adjustment bracket connected to the drive unit and a fitting movably disposed to the adjustment bracket, the telescopic deflector rod being disposed to the fitting;

the assembly part can move on the adjusting bracket along the radial direction of the rotating shaft so as to adjust the eccentric distance of the telescopic deflector rod relative to the rotating shaft.

7. The workpiece measuring device according to claim 6, wherein the adjusting bracket comprises a first connecting plate and a second connecting plate, one end of the first connecting plate is connected with the rotating shaft, the other end of the first connecting plate is connected with the second connecting plate, a bayonet is arranged on the second connecting plate, the fitting is movably matched in the bayonet, and the fitting and the bayonet are positioned through a bolt.

8. The workpiece measuring device according to claim 5, wherein the driving unit comprises a mounting seat, a driving motor and the rotating shaft are arranged on the mounting seat in parallel, and an output shaft of the driving motor is in transmission connection with the rotating shaft.

9. The workpiece measuring device of claim 1, further comprising a lifting assembly connected to the measuring table for switching the measuring table between a loading level distributed in a vertical direction and a measuring level by lifting.

10. The workpiece measuring device according to claim 9, wherein workpiece in-place sensors are arranged at the loading position and the measuring position.

11. The workpiece measurement device of claim 1 or 9, further comprising a translation assembly, wherein the rotation assembly is mounted to the translation assembly, and wherein the translation assembly is capable of driving the rotation assembly to move to correspond to or be staggered from the measurement table.

12. A workpiece measurement system comprising a workpiece measurement device as claimed in any one of claims 1 to 11 and a measurement controller electrically connected to the workpiece measurement device.