阅读说明：本技术 一种测量支架类组件轴承拉脱位移的工装及测量方法 (Tool and method for measuring pull-out displacement of bearing of bracket assembly ) 是由 张俊 易鹭 辛艳粉 罗建中 涂昱锴 周苗苗 吴经睿 于 2021-07-30 设计创作，主要内容包括：本发明属于复合工装领域,具体为一种测量支架类组件轴承拉脱位移的工装及测量方法。包括深度测量环和套筒,深度测量环上部分为圆柱体结构,下部为环形结构,环形结构的内圈罩住轴承中间的球体,环形结构的高度应大于轴承的内圈平面到球体端面的高度。套筒为环形圆柱体,其内孔与深度测量环为间隙配合。在轴承拉脱前后分别测量套筒和深度测量环之间的高度差得出轴承的轴向位移,前后两次的位移量相减可计算得出轴承最终的轴向位移量,本发明方便定位、工作效率高,解决了大型支架类组件由于安装轴承的耳片较小无法直接放在工作平台上,用杠杆百分表直接测量出轴承内圈与耳片端面的位移值及手扶不稳容易产生误差。(The invention belongs to the field of composite tools, and particularly relates to a tool and a method for measuring the pull-out displacement of a bearing of a bracket assembly. The depth measuring device comprises a depth measuring ring and a sleeve, wherein the upper part of the depth measuring ring is of a cylindrical structure, the lower part of the depth measuring ring is of an annular structure, an inner ring of the annular structure covers a ball body in the middle of a bearing, and the height of the annular structure is greater than the height from the plane of the inner ring of the bearing to the end face of the ball body. The sleeve is an annular cylinder, and an inner hole of the sleeve is in clearance fit with the depth measuring ring. The invention has convenient positioning and high working efficiency, solves the problem that the large bracket assembly cannot be directly placed on a working platform because the lug for mounting the bearing is smaller, and directly measures the displacement value of the end faces of the bearing inner ring and the lug by using a lever dial indicator and easily generates errors due to unstable hand holding.)

1. The tool for measuring the pulling-out displacement of the bearing of the bracket assembly is characterized by comprising a depth measuring ring (1) and a sleeve (2), wherein the upper part of the depth measuring ring (1) is of a cylindrical structure, the lower part of the depth measuring ring is of an annular structure, an inner ring of the annular structure covers a ball body in the middle of the bearing, and the height of the annular structure is greater than the height from the plane of the inner ring of the bearing (3) to the end face of the ball body; the sleeve (2) is an annular cylinder, and an inner hole of the sleeve is in clearance fit with the depth measuring ring (1).

2. The tool for measuring the bearing pull-out displacement of the bracket assembly according to claim 1, wherein the diameter of the inner ring of the sleeve (2) is 0.1mm larger than the outer diameter of the depth measuring ring (1), and the wall thickness is 3-5 mm.

3. The tool for measuring the bearing pull-out displacement of the bracket assembly as claimed in claim 1, wherein the wall thickness of the annular structure is smaller than the distance from the maximum diameter of the ball to the outer ring of the bearing.

4. The tool for measuring the bearing pull-out displacement of the bracket assembly according to claim 1, wherein the depth measuring ring (1) is made of metal.

5. The tool for measuring the bearing pull-out displacement of a bracket assembly according to claim 1, wherein the annular section of the annular structure of the sleeve (2) can be completely placed on the end face of the lug, and the height of the annular section is 10mm lower than that of the depth measuring ring (1).

6. Tool for measuring the bearing pull-out displacement of a holder-like component according to claim 1, characterised in that the depth measuring ring (1) and the sleeve (2) each have an end face which maintains a flatness of less than 0.02 mm.

7. The tool for measuring the bearing pull-out displacement of the bracket assembly according to claim 1, wherein the length of the depth measuring ring (1) is greater than the length of the sleeve (2).

8. The tool for measuring the bearing pull-out displacement of the bracket assembly according to claim 1, wherein the orifices of the inner holes at the two ends of the sleeve (2) are ensured to be free of burrs.

9. A measuring method for measuring the pull-out displacement of a bearing of a bracket assembly comprises the following steps:

step 1, after a bearing (3) is pressed, firstly, the annular end face of a depth measuring ring (1) is placed and attached to an inner ring of the bearing (3), then a sleeve (2) is sleeved on the depth measuring ring (1), and one side end face of the sleeve is attached to the end face of a lug;

step 2, measuring the height of one side of the depth measuring ring (1) and the sleeve (2) far away from the welding beam assembly (4) by using a vernier caliper, and recording the height as H1:

step 3, after the bearing (3) is pulled off, repeating the step 1 and the step 2, and measuring and recording the height difference H2 again;

and 4, finally subtracting the two measured values to obtain the axial displacement delta H ═ H1-H2 |.

Technical Field

The invention belongs to the field of novel composite tools, and particularly relates to a tool and a method for measuring the pull-out displacement of a bearing of a bracket assembly.

Background

The bearing axial displacement measurement device belongs to a bracket assembly, a bearing needs to be pulled off after a press-fitting bearing is closed on a welding assembly, whether the axial displacement of the bearing is within a design requirement range is judged, the conventional measurement of the axial displacement of the bearing is to directly place the lug end face on a working platform before and after the bearing is pulled off and directly measure the displacement value of the bearing inner ring and the lug end face by using a lever dial indicator, the bracket assembly is large, the lug of the assembled bearing is small and cannot be directly placed on the working platform for measurement, only 0.1mm of offset is allowed before and after the bearing is pulled off due to the displacement requirement, the bearing is unstable in hand holding, and the generated error is large, so that a set of tool and a detection method are designed for measuring the displacement of the large bracket bearing pulled off.

Disclosure of Invention

Technical scheme

The utility model provides a measure frock of support class subassembly bearing pull-out displacement, includes degree of depth measurement ring 1 and sleeve 2, and 1 upper portion of degree of depth measurement ring is the cylinder structure, and the lower part is the loop configuration, and the inner circle of loop configuration covers the spheroid in the middle of the bearing, and the loop configuration's height should be greater than the height of the inner circle plane to the spheroid terminal surface of bearing 3. The sleeve 2 is an annular cylinder, and the inner hole of the sleeve is in clearance fit with the depth measuring ring 1.

The diameter of the inner ring of the sleeve 2 is 0.1mm larger than the outer diameter of the depth measuring ring 1, and the wall thickness is 3-5 mm.

The wall thickness of the annular structure should be less than the distance from the maximum diameter of the ball to the outer race of the bearing.

The depth measuring ring 1 is made of metal.

The annular cross section of the annular structure of the sleeve 2 can be placed entirely on the end face of the tab, with a height 10mm lower than the depth measuring ring 1.

The end faces of the depth measuring ring 1 and the sleeve 2 are each maintained less than 0.02mm in flatness.

The depth measuring ring 1 has a length greater than the length of the sleeve 2.

The inner hole orifices at the two ends of the sleeve 2 need to be ensured to be free of burrs.

A measuring method for measuring the pull-out displacement of a bearing of a bracket assembly comprises the following steps:

1. after the bearing 3 is pressed, firstly, the annular end face of the depth measuring ring 1 is placed and attached to the inner ring of the bearing 3, then the sleeve 2 is sleeved on the depth measuring ring 1, and one side end face of the sleeve is attached to the end face of the lug;

2. the height of the depth measuring ring 1 and sleeve 2 on the side remote from the welded beam assembly 4 was measured with a vernier caliper and recorded as H1:

3. after the bearing 3 is pulled off, repeating the steps 1 and 2, and measuring and recording the height difference H2 again;

4. finally, the axial displacement quantity delta H is obtained by subtracting the values measured twice, namely the axial displacement quantity delta H is | H1-H2 |.

Technical effects

Because the device has the characteristics of simple structure, convenient operation, convenient storage and the like, the problem of measuring the pull-out displacement of the support bearing is effectively solved, and the working efficiency is improved.

Drawings

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

FIG. 2 is a schematic view of an assembly;

FIG. 3 is a depth measurement ring;

FIG. 4 is a schematic view of a sleeve;

FIG. 5 is a schematic view of a measurement process;

FIG. 6 is a graph showing measurement results;

wherein the depth measuring ring-1, and the sleeve-2, the bearing-3, and the welded beam assembly-4.

Detailed Description

The apparatus and method of the present invention will be further described with reference to the accompanying fig. 1-6:

a depth measuring ring 1 for measuring and a sleeve 2 for auxiliary measuring. The depth measuring ring 1 is a whole, the upper part of the depth measuring ring is of a cylindrical structure, the lower part of the depth measuring ring is of an annular structure, the inner ring structure of the depth measuring ring is used for covering a ball body in the middle of a bearing during measurement and plays a role of avoiding, the height of the depth measuring ring is larger than the distance from a plane of an inner ring of the bearing to the end face of the ball body, the wall thickness of the depth measuring ring is not smaller than the distance from the maximum diameter of the ball body to an outer ring of the bearing, the sleeve 2 is an annular cylinder, an inner hole of the sleeve is in clearance fit with the depth measuring ring 1, the diameter of the inner ring of the sleeve 2 is larger than the outer diameter of the depth measuring ring 1 by 0.1mm, and the wall thickness is about 3-5 mm.

The specific form is that a measure support class subassembly bearing pulls off frock of displacement, including degree of depth measurement ring 1 and sleeve 2, degree of depth measurement ring 1 upper portion is the cylinder structure, and the lower part is the loop configuration, and the interior circle of loop configuration covers the spheroid in the middle of the bearing, and the height of loop configuration should be greater than the height of the interior circle plane of bearing 3 to spheroid terminal surface. The sleeve 2 is an annular cylinder, and the inner hole of the sleeve is in clearance fit with the depth measuring ring 1.

The diameter of the inner ring of the sleeve 2 is 0.1mm larger than the outer diameter of the depth measuring ring 1, and the wall thickness is 3-5 mm. The smoothness can be ensured.

The wall thickness of the annular structure should be less than the distance from the maximum diameter of the ball to the outer race of the bearing. The annular structure can be ensured to fall on the plane of the outer ring of the bearing 3, and the accuracy of measurement can be ensured after the bearing 3 is pulled off.

The depth measuring ring 1 is made of metal. The metal is steel or aluminum. The metal material is not easy to deform, and the tool is only used for measurement and is not stressed, so that the deformation problem does not need to be considered

The method comprises the following steps: a depth measuring ring 1 for measuring and a sleeve 2 for auxiliary measuring. The depth measuring ring 1 is a whole, the upper part is a cylindrical structure, the lower part is an annular structure, the inner ring structure of the ring is used for covering a ball body in the middle of a bearing during measurement and has the function of avoiding, the height of the ring is larger than the distance from the plane of the inner ring of the bearing to the end face of the ball body, the wall thickness of the ring is not more than the distance from the maximum diameter of the ball body to the outer ring of the bearing, the sleeve 2 is an annular cylinder, the inner hole of the sleeve is in clearance fit with the depth measuring ring 1, the diameter of the inner ring of the sleeve 2 is 0.1mm larger than the outer diameter of the depth measuring ring 1, and the wall thickness is about 3-5mm,

that is, the annular section of the sleeve 2 can be completely placed on the end face of the lug, the height of the sleeve is lower than that of the depth measuring ring 1, the height difference between the two is 10mm, the value is convenient to measure, the value is not too large or too small, the too large value is unnecessary, the waste of materials and manpower is caused, the value is too small, the value is inconvenient to measure and read due to the measurement of a caliper,

since the offset of 0.1mm is allowed before and after the bearing 3 is pulled off, each end face of the depth measuring ring 1 and the sleeve 2 needs to be maintained with flatness less than 0.02mm for accurate measurement, and the end faces need to be ground.

The depth measuring ring 1 has a length greater than the length of the sleeve 2. The measurement result is better and visual, and the operation habit of inspection personnel is compounded.

The orifices of the inner holes at the two ends of the sleeve 2 need to be ensured to be free of burrs, so that the depth measuring ring 1 can normally pass through the orifices during measurement without clamping stagnation.

A measuring method for measuring the pull-out displacement of a bearing of a bracket assembly comprises the following steps:

1. after the bearing 3 is pressed, firstly, the annular end face of the depth measuring ring 1 is placed and attached to the inner ring of the bearing 3, then the sleeve 2 is sleeved on the depth measuring ring 1, and one side end face of the sleeve is attached to the end face of the lug;

2. the height of the depth measuring ring 1 and sleeve 2 on the side away from the welded beam assembly 4 was measured with a vernier caliper and recorded as H1:

3. after the bearing 3 is pulled off, repeating the steps 1 and 2, and measuring and recording the height difference H2 again;

4. finally, the axial displacement quantity delta H is obtained by subtracting the values measured twice, namely the axial displacement quantity delta H is | H1-H2 |.

The invention belongs to a novel composite tool, and relates to a tool and a method for measuring the pull-out displacement of a large-scale support assembly bearing. The device is composed of a depth measuring ring and a sleeve, the height difference between the sleeve and the depth measuring ring is measured before and after the bearing is pulled off to obtain the axial displacement of the bearing, the final axial displacement of the bearing can be calculated by subtracting the displacement of the two times before and after the bearing is pulled off, the invention has the advantages of convenient positioning and high working efficiency, and solves the problems that the large support assembly cannot be directly placed on a working platform because the lug piece for mounting the bearing is smaller, the displacement value of the end face of the bearing inner ring and the lug piece is directly measured by a lever dial indicator, and the error is easily generated due to unstable hand holding.