CN221764332U - End face runout measuring device for cylindrical sleeve parts - Google Patents

Abstract

The application provides an end face runout measuring device for cylindrical sleeve parts, which belongs to the field of end face runout measuring and detecting tools and comprises a measuring assembly, a detecting body, an inner hexagonal screw and a base, wherein the measuring assembly is fixed at the top of the detecting body, the bottom of the detecting body is fixed with the inclined surface of the base through the inner hexagonal screw, a supporting assembly for connecting the cylindrical sleeve parts is fixed at the middle of the detecting body, and the axis of the supporting assembly is perpendicular to the plane of the detecting body fixing supporting assembly. The cylindrical sleeve part is obliquely sleeved on the supporting component to rotate, the inclined angle can enable the cylindrical sleeve part to have downward gravity, a certain limiting effect is achieved in the rotation process, displacement cannot occur along the extending direction of the supporting component, errors in the measurement process are avoided, and the accuracy of the measurement result is improved.

Description

A device for measuring the end runout of cylindrical sleeve parts

Technical Field

The utility model belongs to the field of end face runout measuring and checking tools, in particular to an end face runout measuring device for cylindrical sleeve-type parts.

Background Art

At present, there are mainly the following schemes for measuring the end face runout of cylindrical sleeve parts: Scheme 1: The lathe three-jaw clamps the outer circle and rotates the workpiece 360 degrees, and obtains the maximum value through the dial indicator. Scheme 2 adopts the scheme of double-top punching of the part through the mandrel. Scheme 3 uses a three-coordinate measuring instrument to measure the end face runout of the workpiece. Scheme 1 is easy to control the clamping force of the jaws, which may cause the outer circle of the cylindrical sleeve parts to deform. Scheme 2 requires the configuration of mandrels of various specifications, which invisibly increases the management cost. The measurement cost of Scheme 3 is relatively high, and it is unlikely to be measured in large quantities.

A cylindrical roller reference end face runout measuring device is currently disclosed (patent application number: CN202021913825.X), in which a column is fixedly installed on the base plate, a sliding sleeve is tightened to the column by a top screw, a horizontal sliding rod passes through the sliding sleeve and is tightened by a dial indicator clamp through a top screw, and the other end is connected to the dial indicator clamp, and the dial indicator clamp is clamped with a clamping bolt. A vertical plate is also provided on the base plate, and the vertical plate is fixedly connected to the support plate by screws, the shaft passes through the through hole on the support plate, and is locked on the support plate with a nut, and the bearing sleeve is mounted on the shaft.

The disclosed solution places a cylindrical roller on a bearing for rotation, but during the rotation process, lateral displacement is prone to occur, resulting in large errors in the measurement results and inaccurate measurement results.

Utility Model Content

The present application provides a device for measuring the end face runout of cylindrical sleeve-type parts, aiming to solve the problems in conventional measurement schemes that cylindrical sleeve-type parts are easily deformed, the cost required for measurement is high, and in existing public schemes, the parts are easily displaced during rotation, resulting in inaccurate measurement results.

In order to achieve the above purpose, the utility model adopts the following technical solutions:

A device for measuring the end face runout of a cylindrical sleeve-like part comprises a measuring assembly, a testing body, a hexagon socket screw and a base, wherein the measuring assembly is fixed to the top of the testing body, the bottom of the testing body is fixed to the inclined surface of the base by means of a hexagon socket screw, a supporting assembly for connecting the cylindrical sleeve-like part is fixed to the middle of the testing body, the axis of the supporting assembly is perpendicular to the plane on which the testing body fixes the supporting assembly, the supporting assembly comprises a fixing screw, a small shaft, a deep groove ball bearing and a tire sleeve, the bottom of the tire sleeve is fixed to the end face of the testing body by means of a fixing screw, the inner ring of the deep groove ball bearing is sleeved with the small shaft, the deep groove ball bearing is connected to the side wall area of the tire sleeve by means of the small shaft, and a part of the outer ring of the deep groove ball bearing passes through the side wall of the tire sleeve and abuts against the inner wall of the cylindrical sleeve-like part.

Preferably, a radial opening is provided on the tire casing sidewall, the length of which is smaller than the diameter of the outer ring of the deep groove ball bearing, and part of the outer ring of the deep groove ball bearing passes through the radial opening and abuts against the inner wall of the cylindrical casing part.

Preferably, a positioning block is fixed in the middle of the inspection body, the number of the positioning blocks is at least three, the at least three positioning blocks are evenly distributed on the outside of the tire sleeve, and the positioning blocks are offset against the edge area of the cylindrical sleeve-like parts.

Preferably, the measuring assembly includes a screw, a nut, a dial indicator and a support rod, one end of the screw is connected to the nut, and the other end of the screw passes through the head of the support rod. The nut is rotated to adjust the clamping degree of the support rod through the screw. The probe of the dial indicator is located under the screw and clamped by the support rod, and the end of the cylindrical sleeve-like part is against the probe of the dial indicator.

Preferably, the base is equipped with two handles, which are symmetrically fixed on the left and right sides of the base.

Preferably, the axis of the support assembly is parallel to the plane where the inclined surface of the base is located.

The utility model has the following beneficial effects:

(1) During measurement, the cylindrical sleeve parts are placed on the support assembly and rotated, with the inner wall of the parts abutting against the outer ring of the deep groove ball bearing and the bottom of the parts abutting against the positioning block. During the rotation process, no damage is caused, thus ensuring the quality and safety of the cylindrical sleeve parts;

(2) The cost of each structure of the measuring device is low, and it does not need to be equipped with mandrels of various specifications. The cost required for the overall measurement is low, which is easy to promote;

(3) The cylindrical sleeve-like parts are slanted on the support assembly and rotated. The tilt angle can make the cylindrical sleeve-like parts have a downward gravity, which plays a certain limiting effect during the rotation process and will not be displaced along the extension direction of the support assembly, thereby avoiding errors in the measurement process and improving the accuracy of the measurement results.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic structural diagram of the first viewing angle of the end face runout measuring device of the utility model

FIG. 2 is a schematic diagram of the structure of the end face runout measuring device of the utility model from a second viewing angle

FIG. 3 is a schematic diagram of the structure of the end face runout measuring device of the utility model from a third viewing angle

FIG. 4 is a schematic diagram of the structure of the end face runout measuring device of the utility model from a fourth viewing angle

FIG. 5 is a partial enlarged view of area A in FIG. 4

Among them, 1-measuring component, 11-screw, 12-nut, 13-dial indicator, 14-support rod, 2-inspection body, 3-hexagon socket screw, 4-base, 5-cylindrical sleeve parts, 6-support component, 61-fixing screw, 62-small shaft, 63-deep groove ball bearing, 64-tire sleeve, 641-radial opening, 7-positioning block, 8-handle.

DETAILED DESCRIPTION

Example 1

As shown in Figures 1-5, a device for measuring the end face runout of a cylindrical sleeve-like part comprises a measuring component 1, an inspection body 2, a hexagon socket screw 3 and a base 4, wherein the measuring component 1 is fixed to the top of the inspection body 2, the bottom of the inspection body 2 is fixed to the inclined surface of the base 4 by the hexagon socket screw 3, a supporting component 6 for connecting the cylindrical sleeve-like part 5 is fixed to the middle of the inspection body 2, the axis of the supporting component 6 is perpendicular to the plane of the inspection body 2 fixing the supporting component 6, the supporting component 6 comprises a fixing screw 61, a small shaft 62, a deep groove ball bearing 63 and a tire sleeve 64, the bottom of the tire sleeve 64 is fixed to the end face of the inspection body 2 by the fixing screw 61, the inner ring of the deep groove ball bearing 63 is sleeved with the small shaft 62, the deep groove ball bearing 63 is connected to the side wall area of the tire sleeve 64 by the small shaft 62, and a part of the outer ring of the deep groove ball bearing 63 passes through the side wall of the tire sleeve 64 and abuts against the inner wall of the cylindrical sleeve-like part 5.

A radial opening 641 is formed on the side wall of the tire sleeve 64 . The length of the radial opening 641 is smaller than the diameter of the outer ring of the deep groove ball bearing 63 . Part of the outer ring of the deep groove ball bearing 63 passes through the radial opening 641 and abuts against the inner wall of the cylindrical sleeve-like part 5 .

There are four deep groove ball bearings 63, which are symmetrical left and right and up and down, and together abut against the inner wall of the cylindrical sleeve-like part 5 to support it.

A positioning block 7 is also fixed in the middle of the inspection body 2 . The number of the positioning blocks 7 is at least three. The at least three positioning blocks 7 are evenly distributed on the outside of the tire sleeve 64 . The positioning blocks 7 abut against the edge area of the cylindrical sleeve-like part 5 .

When the cylindrical sleeve-like part 5 rotates, the positioning block 7 reduces the wear on the edge of the cylindrical sleeve-like part 5 and can play a certain positioning effect thereon, thereby improving the accuracy of measurement.

The measuring assembly 1 includes a screw 11, a nut 12, a dial indicator 13 and a support rod 14. One end of the screw 11 is connected to the nut 12, and the other end of the screw 11 passes through the head of the support rod 14. The nut 12 is rotated to adjust the clamping degree of the support rod 14 through the screw 11. The probe of the dial indicator 13 is located below the screw 11 and clamped by the support rod 14. The end of the cylindrical sleeve-like part 5 is against the probe of the dial indicator 13.

The axis of the support assembly 6 is parallel to the plane where the inclined surface of the base 4 is located.

The working principle of the device is as follows: first, align the cylindrical sleeve part 5 to be measured with the tire sleeve 64 and install it, rotate the nut 12, adjust the probe of the dial indicator 13 so that it abuts against the end face of the cylindrical sleeve part 5, then rotate the nut 12, tighten the screw 11 to clamp the probe of the dial indicator 13, and finally rotate the cylindrical sleeve part 5 360 degrees, and record the maximum difference in the reading of the dial indicator 13, which is the actual value of the end face runout of the cylindrical sleeve part 5 to be measured.

Example 2

The difference between this embodiment and the first embodiment is that the base 4 is provided with two handles 8 , which are symmetrically fixed on the left and right sides of the base 4 .

During measurement, the handle 8 can be held to make the device more stable and prevent the cylindrical sleeve-like part 5 from tipping over due to being too heavy.

Example 3

The difference between this embodiment and the first embodiment is that there are six deep groove ball bearings 63, and the related connection structure is adjusted accordingly. The upper and lower ones are one group, which is divided into three groups, and the three groups are evenly arranged at intervals of 120 degrees to provide better and more stable support for the cylindrical sleeve-like parts 5.

The above description is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any changes or modifications made by any technician in the field of the present invention are included in the patent scope of the present invention.

Claims (6)

1. A device for measuring the end face runout of a cylindrical sleeve-like part, comprising a measuring assembly (1), a test body (2), a hexagon socket screw (3) and a base (4), wherein the measuring assembly (1) is fixed to the top of the test body (2), and the bottom of the test body (2) is fixed to the inclined surface of the base (4) by the hexagon socket screw (3), and characterized in that a support assembly (6) for connecting the cylindrical sleeve-like part (5) is fixed to the middle of the test body (2), and the axis of the support assembly (6) is aligned with the test body (2) to fix the support assembly (6). The support assembly (6) comprises a fixing screw (61), a small shaft (62), a deep groove ball bearing (63) and a tire sleeve (64). The bottom of the tire sleeve (64) is fixed to the end surface of the inspection body (2) by the fixing screw (61). The inner ring of the deep groove ball bearing (63) is sleeved with the small shaft (62). The deep groove ball bearing (63) is connected to the side wall area of the tire sleeve (64) through the small shaft (62). The outer ring of part of the deep groove ball bearing (63) passes through the side wall of the tire sleeve (64) and abuts against the inner wall of the cylindrical sleeve-like part (5). 2. A device for measuring the end face runout of a cylindrical sleeve-like part according to claim 1, characterized in that a radial opening (641) is provided on the side wall of the tire sleeve (64), the length of the radial opening (641) is smaller than the diameter of the outer ring of the deep groove ball bearing (63), and part of the outer ring of the deep groove ball bearing (63) passes through the radial opening (641) and abuts against the inner wall of the cylindrical sleeve-like part (5). 3. A device for measuring the end face runout of a cylindrical sleeve-like part according to claim 1, characterized in that a positioning block (7) is also fixed in the middle of the inspection body (2), the number of the positioning blocks (7) is at least three, the at least three positioning blocks (7) are evenly distributed on the outside of the tire sleeve (64), and the positioning blocks (7) are against the edge area of the cylindrical sleeve-like part (5). 4. A device for measuring the end face runout of a cylindrical sleeve-like part according to claim 1, characterized in that the measuring assembly (1) comprises a screw (11), a nut (12), a dial indicator (13) and a support rod (14), one end of the screw (11) is connected to the nut (12), and the other end of the screw (11) passes through the head of the support rod (14), the nut (12) rotates to adjust the clamping degree of the support rod (14) through the screw (11), the probe of the dial indicator (13) is located below the screw (11) and clamped by the support rod (14), and the end of the cylindrical sleeve-like part (5) is against the probe of the dial indicator (13). 5. The end face runout measuring device of a cylindrical sleeve-like part according to claim 1 is characterized in that a handle (8) is installed on the base (4), the number of the handles (8) is two, and the two handles (8) are symmetrically fixed on the left and right sides of the base (4). 6. A device for measuring the end runout of a cylindrical sleeve-like part according to claim 1, characterized in that the axis of the support assembly (6) is parallel to the plane where the inclined surface of the base (4) is located.