阅读说明：本技术 一种组装台架同轴度快速检测方法及工装 (Method and tool for quickly detecting coaxiality of assembly rack ) 是由 张靖 王剑峰 王永波 谢发祥 于 2021-08-20 设计创作，主要内容包括：本发明提供了一种组装台架同轴度快速检测方法及工装,检测工装包括工装轴套、支撑法兰和测量工具。所述工装轴套通过键和紧定螺钉固定在基准输入轴上,支撑法兰则通过锁紧螺钉固定在工装轴套上；所述测量工具包括万向磁性表座和数显千分表,数显千分表通过锁紧装置固定在表座上；所述检测方法主要利用磁性表座吸附在支撑法兰上,将千分表头指针架在被测轴表面,以基准轴中心轴线为旋转中心,缓慢转动基准轴,读取千分表的最大和最小值,通过多组不同位置测量计算出同轴度误差。本发明结构简单、容易操作且使用成本低,可达到快速检测的目的。(The invention provides a method and a tool for quickly detecting coaxiality of an assembly rack. The tool shaft sleeve is fixed on the reference input shaft through a key and a set screw, and the support flange is fixed on the tool shaft sleeve through a locking screw; the measuring tool comprises a universal magnetic gauge stand and a digital display dial indicator, and the digital display dial indicator is fixed on the gauge stand through a locking device; the detection method mainly comprises the steps that a magnetic gauge stand is adsorbed on a supporting flange, a dial gauge head pointer is erected on the surface of a measured shaft, the central axis of a reference shaft is used as a rotation center, the reference shaft is slowly rotated, the maximum value and the minimum value of the dial gauge are read, and coaxiality errors are calculated through measurement of multiple groups of different positions. The invention has simple structure, easy operation and low use cost, and can achieve the purpose of rapid detection.)

1. The assembly rack coaxiality rapid detection tool is characterized by comprising a tool shaft sleeve, a support flange and a measuring tool;

the inner diameter of a shaft sleeve of the tool shaft sleeve is matched with the outer diameter of the reference input shaft, a key groove, a locking threaded hole and a mounting flange threaded hole are formed in the tool shaft sleeve, and the tool shaft sleeve can be fixedly locked on the reference input shaft through a flat key and a radial locking screw;

the supporting flange is provided with a sink through hole and is fixed on the end face of the mounting flange threaded hole of the tool shaft sleeve through a locking screw;

the measuring tool comprises a universal magnetic gauge stand and a digital display dial gauge, wherein the universal magnetic gauge stand is communicated with an internal magnetic pole through a rotating handle and is adsorbed on the supporting flange; the digital display dial indicator is locked on the universal magnetic gauge stand through gauge clamping holes in the universal magnetic gauge stand.

2. The assembly bench coaxiality rapid detection tool according to claim 1, wherein the outer wall of the tool shaft sleeve is provided with a support flange mounting plane; the mounting flange threaded hole is formed in the mounting plane of the supporting flange.

3. The assembly bench coaxiality rapid detection tool according to claim 2, wherein the support flange mounting plane is arranged on the side opposite to the key groove.

4. The assembly rack coaxiality rapid detection tool according to claim 1, wherein the key groove is formed in the axial direction of the shaft sleeve.

5. The assembly bench coaxiality rapid detection tool according to claim 1, wherein the support flange is made of steel.

6. The method for rapidly detecting the coaxiality of the assembling bench of the tool according to any one of claims 1 to 5, is characterized by comprising the following steps of:

1) pose correction

The position and pose of the universal magnetic gauge stand with the digital display dial indicator are adjusted, the position and the pose of the adjustment are adjusted, the gauge stand is adsorbed on the supporting flange and does not interfere with the reference input shaft and the measured shaft, a pointer of the digital display dial indicator contacts the surface of the measured shaft and is perpendicular to the axis of the measured shaft, and the universal magnetic gauge stand is locked after the position and the pose are adjusted;

2) zero adjustment is carried out after zero position correction;

3) rotary reading

Taking the central axis of the reference input shaft as a rotation center, rotating the reference input shaft, reading the maximum value and the minimum value of the dial indicator, and taking the value with the maximum absolute value of the two values if the signs of the two values are the same, namely the same positive value or the same negative value; if the signs of the two values are opposite, namely one is positive and the other is negative, the sum of the absolute values of the two values is taken;

4) repeating the step 3) to set times, and taking an average value;

5) multipoint data collection

Adjusting the gauge stand and the digital display dial gauge, performing point-by-point test on the measured shaft, and repeating the steps 1) -4) to obtain an average value of each test point;

6) coaxiality calculation

And (4) carrying out division two calculation on the multiple groups of average values obtained in the step 5), and subtracting the minimum value from the maximum value to obtain the coaxiality value.

7. The method for rapidly detecting the coaxiality of the assembling bench of the tool according to claim 6, wherein in the step 1), a pointer of the digital display dial indicator is pressed down by 4-6mm and is perpendicular to the axis of the measured shaft after contacting the surface of the measured shaft.

8. The method for rapidly detecting the coaxiality of the assembly rack of the tool according to claim 6, wherein in the step 5), when the point division test is performed, a tested shaft is divided into three to five sections according to an actual scene, and any one or more points are selected from each section to serve as a test point.

Technical Field

The invention belongs to the field of rack coaxiality detection, and particularly relates to a method and a tool for quickly detecting the coaxiality of an assembly rack.

Background

In recent years, with the rapid development of science and technology, various technical achievements and detection of products become an indispensable link in industrial production and application, and particularly in the field of manufacturing and detection of high-precision equipment, the detection technology is more important. The test bench is the most common test device in the detection field, and how to adjust the test bench to be qualified is particularly important.

In the calibration of various types of assembly stands, a task is most critical and important, namely the centering adjustment of the assembly units, in which the acquisition of the detection data of the coaxiality error is necessary. Most of the existing coaxiality error detection methods and equipment have the defects of complex devices, complex operation, long time consumption and the like.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: aiming at the existing defects, the method and the tool for quickly detecting the coaxiality of the assembly rack are provided, and the method and the tool are characterized by simple structure, easy operation, convenience and quickness. In addition, the manufacturing cost is low, the processing requirement is not high, and a large amount of manpower and material resources are saved.

In order to solve the above problems, the present invention provides a technical solution as follows:

the invention firstly provides an assembly rack coaxiality rapid detection tool which comprises a tool shaft sleeve, a support flange and a measuring tool;

the inner diameter of a shaft sleeve of the tool shaft sleeve is matched with the outer diameter of the reference input shaft, a key groove, a locking threaded hole and a mounting flange threaded hole are formed in the tool shaft sleeve, and the tool shaft sleeve can be fixedly locked on the reference input shaft through a flat key and a radial locking screw;

the supporting flange is provided with a sink through hole and is fixed on the end face of the mounting flange threaded hole of the tool shaft sleeve through a locking screw;

the measuring tool comprises a universal magnetic gauge stand and a digital display dial gauge, wherein the universal magnetic gauge stand is communicated with an internal magnetic pole through a rotating handle and is adsorbed on the supporting flange; the digital display dial indicator is locked on the universal magnetic gauge stand through gauge clamping holes in the universal magnetic gauge stand.

Furthermore, the outer wall of the tool shaft sleeve is provided with a supporting flange mounting plane; the mounting flange threaded hole is formed in the mounting plane of the supporting flange.

Further, the support flange mounting plane is disposed at a side opposite to the key groove.

Furthermore, the key groove is formed along the axial direction of the shaft sleeve.

Furthermore, the support flange is made of steel.

The invention further provides a method for rapidly detecting the coaxiality of the assembly rack of the tool, which comprises the following steps:

1) pose correction

The position and pose of the universal magnetic gauge stand with the digital display dial indicator are adjusted, the position and the pose of the adjustment are adjusted, the gauge stand is adsorbed on the supporting flange and does not interfere with the reference input shaft and the measured shaft, a pointer of the digital display dial indicator contacts the surface of the measured shaft and is perpendicular to the axis of the measured shaft, and the universal magnetic gauge stand is locked after the position and the pose are adjusted;

2) zero adjustment is carried out after zero position correction;

3) rotary reading

Taking the central axis of the reference input shaft as a rotation center, rotating the reference input shaft, reading the maximum value and the minimum value of the dial indicator, and taking the value with the maximum absolute value of the two values if the signs of the two values are the same, namely the same positive value or the same negative value; if the signs of the two values are opposite, namely one is positive and the other is negative, the sum of the absolute values of the two values is taken;

4) repeating the step 3) to set times, and taking an average value;

5) multipoint data collection

Adjusting the gauge stand and the digital display dial gauge, performing point-by-point test on the measured shaft, and repeating the steps 1) -4) to obtain an average value of each test point;

6) coaxiality calculation

And (4) carrying out division two calculation on the multiple groups of average values obtained in the step 5), and subtracting the minimum value from the maximum value to obtain the coaxiality value.

Further, in the step 1), the pointer of the digital display dial indicator is pressed down by 4-6mm and is perpendicular to the axis of the measured shaft after contacting the surface of the measured shaft.

Further, in the step 5), when the point-based test is performed, the measured axis is divided into three to five sections according to the actual scene, and any one or more points are selected from each section as the test point.

The invention can detect the coaxiality and read data at any assembling position along with the assembling rack and is not limited by space and orientation. In addition, the invention can realize multi-stage joint test, can detect a plurality of assembly units of the assembly bench step by step to be qualified, and then carries out error detection with the next stage after installation, thereby being more flexible and convenient to use.

Because the assembly bench is generally large in size and mass, a high-precision measuring instrument such as a three-coordinate measuring instrument cannot be used for testing basically in the prior art, and therefore the detection precision is usually not high. In the detection method and the tool provided by the invention, the measured shaft reads data completely based on the live rotation central axis of the reference shaft, and the detected live accuracy of the coaxiality error is high.

The tool form can be changeable, the structure and the installation mode of the tool can be changed according to the requirements of actual working conditions, the adaptability is strong, and the gauge outfit and the reference shaft are in rigid connection and accord with the detection principle of the invention.

Drawings

FIG. 1 is a schematic diagram of an actual application structure of the test tool assembly of the present invention;

FIG. 2 is a schematic diagram illustrating the principle of the method for rapidly detecting the coaxiality of the assembly bench of the present invention;

fig. 3 is a schematic structure of a tool shaft sleeve and a support flange of the rapid coaxiality detection tool for the assembly bench of the invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

As shown in fig. 1 to 3, the embodiment provides a quick coaxiality detection tool for an assembly bench, which includes a tool shaft sleeve 1, a support flange 2 and a measuring tool;

the inner diameter of the tool shaft sleeve 1 is matched with the outer diameter of the reference input shaft A, a key groove, a locking threaded hole and a mounting flange threaded hole are formed in the tool shaft sleeve, and the tool shaft sleeve can be fixedly locked on the reference input shaft through a flat key and a radial locking screw;

the supporting flange 2 is provided with a sink through hole and is fixed on the end face of the mounting flange threaded hole of the tool shaft sleeve through a locking screw;

the measuring tool comprises a universal magnetic gauge stand B and a digital display dial gauge C, wherein the universal magnetic gauge stand B is communicated with an internal magnetic pole through a rotating handle and is adsorbed on the supporting flange 2; and the digital display dial indicator C is locked on the universal magnetic gauge stand through a gauge clamping hole on the universal magnetic gauge stand B.

In the preferred embodiment of the invention, in order to ensure that the supporting flange is stably installed, the outer wall of the tool shaft sleeve is provided with a supporting flange installation plane; the mounting flange threaded hole is formed in the mounting plane of the supporting flange.

As shown in fig. 3, the support flange mounting plane is disposed at a side opposite to the key groove. The key groove is formed along the axial direction of the shaft sleeve.

In this embodiment, the support flange is made of steel.

As shown in fig. 1 and 2, the method for rapidly detecting the coaxiality of the assembly bench based on the tool of the invention comprises the following specific steps:

1) correcting the pose; the position and pose of the universal magnetic gauge stand with the digital display dial indicator are adjusted, the position and the pose of the adjustment are adjusted, the gauge stand is adsorbed on the supporting flange and does not interfere with the reference input shaft and the measured shaft, a pointer of the digital display dial indicator contacts the surface of the measured shaft and is perpendicular to the axis of the measured shaft, and the universal magnetic gauge stand is locked after the position and the pose are adjusted;

2) zero adjustment is carried out after zero position correction;

3) rotating for reading; taking the central axis of the reference input shaft as a rotation center, rotating the reference input shaft, reading the maximum value and the minimum value of the dial indicator, and taking the value with the maximum absolute value of the two values if the signs of the two values are the same, namely the same positive value or the same negative value; if the signs of the two values are opposite, namely one is positive and the other is negative, the sum of the absolute values of the two values is taken;

4) repeating the step 3) to set times, and taking an average value;

5) collecting multipoint data; adjusting the gauge stand and the digital display dial gauge, performing point-by-point test on the measured shaft, and repeating the steps 1) -4) to obtain an average value of each test point;

6) calculating the coaxiality; and (4) carrying out division two calculation on the multiple groups of average values obtained in the step 5), and subtracting the minimum value from the maximum value to obtain the coaxiality value.

In the step 1), the pointer of the digital dial indicator is pressed down by about 5mm in contact with the surface of the measured shaft and is perpendicular to the axis of the measured shaft, for example, the pressing-down size can be 4-6 mm.

In the step 4), the test at the same point is generally selected to repeat the step 3) five times.

In the step 5), when the point division test is performed, the measured axis D may be divided into three to five segments according to an actual scene, and any point is selected as a test point for each segment. If higher precision is required, the number of segments can be increased, or the number of test points in each segment can be increased.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.